51
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Liu Y, Zhao Y, Guo S, Qin D, Yan J, Cheng H, Zhou J, Ren J, Sun L, Peng H, Wu X, Li B. Copper doped carbon dots modified bacterial cellulose with enhanced antibacterial and immune regulatory functions for accelerating wound healing. Carbohydr Polym 2024; 346:122656. [PMID: 39245512 DOI: 10.1016/j.carbpol.2024.122656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 08/18/2024] [Accepted: 08/23/2024] [Indexed: 09/10/2024]
Abstract
The microenvironment of wound healing is susceptible to bacterial infection, chronic inflammation, oxidative stress, and inadequate angiogenesis, requiring the development of innovative wound dressings with antibacterial, anti-inflammatory, antioxidant, and angiogenic capabilities. This research crafted a new multifunctional bacterial cellulose composite membrane infused with copper-doped carbon dots (BC/Cu(II)-RCDs). Findings validated the successful loading of copper-doped carbon dots onto the BC membrane via hydrogen bonding interactions. Compared to the pure BC membrane, the BC/Cu(II)-RCDs composite membrane exhibited significantly enhanced hydrophilicity, tensile properties, and thermal stability. Diverse in vitro assays demonstrated excellent biocompatibility and antibacterial activity of BC/Cu(II)-RCDs composite membranes, alongside their ability to expedite the inflammatory phase and stimulate angiogenesis. In vivo trials corroborated the membrane's ability to foster epithelial regeneration, collagen deposition, and tissue regrowth in full-thickness skin wounds in rats while also curbing inflammation in infected full-thickness skin wounds. More importantly, the treatment of the BC/Cu(II)-RCDs composite membrane may result in the activation of VEGF and MAPK signaling proteins, which are key players in cell migration, angiogenesis, and skin tissue development. In essence, the developed BC/Cu(II)-RCDs composite membrane shows promise for treating infected wounds and serves as a viable alternative material for medicinal bandages.
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Affiliation(s)
- Yingyu Liu
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, Shanxi, China; Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan 030001, Shanxi, China
| | - Yifan Zhao
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, Shanxi, China; Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan 030001, Shanxi, China
| | - Susu Guo
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, Shanxi, China; Academy of Medical Sciences, Shanxi Medical University, Taiyuan 030001, Shanxi, China
| | - Danlei Qin
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, Shanxi, China; Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan 030001, Shanxi, China
| | - Jingyu Yan
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, Shanxi, China; Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan 030001, Shanxi, China
| | - Huaiyi Cheng
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, Shanxi, China; Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan 030001, Shanxi, China
| | - Jian Zhou
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing, China
| | - Jianing Ren
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, Shanxi, China; Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan 030001, Shanxi, China
| | - Lingxiang Sun
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, Shanxi, China; Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan 030001, Shanxi, China
| | - Hongyi Peng
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, Shanxi, China; Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan 030001, Shanxi, China
| | - Xiuping Wu
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, Shanxi, China; Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan 030001, Shanxi, China.
| | - Bing Li
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, Shanxi, China; Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan 030001, Shanxi, China.
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Xu Y, Liu YH, Xu LH, Sun SC, Wen JL, Yuan TQ. Multifunctional composite film of curcumin Pickering emulsion stabilized by lignocellulose nanofibrils isolated from bamboo shoot shells for monitoring shrimp freshness. Carbohydr Polym 2024; 346:122663. [PMID: 39245517 DOI: 10.1016/j.carbpol.2024.122663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2024] [Revised: 08/09/2024] [Accepted: 08/26/2024] [Indexed: 09/10/2024]
Abstract
Concerns about food safety and environmental impact from chemical surfactants have prompted interest in natural lignocellulosic materials as alternatives. In this study, we combined hydrated deep eutectic solvent (DES) pretreatment with ultrasound treatment to prepare lignocellulosic nanofibrils (LCNF) from bamboo shoot shells with appropriate surface properties for stabilizing Pickering emulsions. The pretreatment intensity effectively modulated the surface characteristics of LCNF, achieving desirable wettability through lignin retention and in-situ esterification. The resulting LCNF/curcumin Pickering emulsion (CPE) demonstrated curcumin protection and pH-responsive color changes, while the ensuing CPE/PVA composite film exhibited ultraviolet shielding, mechanical strength, oxygen barrier, and antioxidant properties. Furthermore, the CPE/PVA film showed promise as a real-time indicator for monitoring shrimp freshness, maintaining sensitivity to spoilage even after six months of storage. These findings advance the advancement of green LCNF technologies, providing eco-friendly solutions for valorizing bamboo shoot shells and enhancing the application of LCNF in Pickering emulsions.
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Affiliation(s)
- Ying Xu
- Beijing Key Laboratory of Lignocellulosic Chemistry, State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Beijing 100083, China
| | - Yi-Hui Liu
- Beijing Key Laboratory of Lignocellulosic Chemistry, State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Beijing 100083, China
| | - Ling-Hua Xu
- Beijing Key Laboratory of Lignocellulosic Chemistry, State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Beijing 100083, China
| | - Shao-Chao Sun
- Beijing Key Laboratory of Lignocellulosic Chemistry, State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Beijing 100083, China
| | - Jia-Long Wen
- Beijing Key Laboratory of Lignocellulosic Chemistry, State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Beijing 100083, China.
| | - Tong-Qi Yuan
- Beijing Key Laboratory of Lignocellulosic Chemistry, State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Beijing 100083, China
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53
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Lv R, Chen Y, Zhou J, Jiang L, Xu E, Ling J, Tang J. Green fabrication of hierarchical pore starch with controllable pore size and shape based on different amylose-amylopectin ratios. Carbohydr Polym 2024; 346:122594. [PMID: 39245486 DOI: 10.1016/j.carbpol.2024.122594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 07/26/2024] [Accepted: 08/07/2024] [Indexed: 09/10/2024]
Abstract
Porous starch (PS) was widely prepared for its large effective surface area, pore volume, and superior hydrophilic property, but its application is limited by enzyme and chemical use. In this study, a novel method to prepare PS with controllable hierarchical pores through ultrasound-ethanol precipitation and different amylose-amylopectin ratios is proposed. As shown in porous morphology and parameters, there were macropores, mesopores and micropores in the formed PS. Moreover, we found that the content of amylose (AM) was negatively related with the total pore volume and pore diameter in PS. The different surface tensions created through ethanol evaporation and water migration during oven drying are the main mechanisms of forming pores with controllable sizes. Based on the molecular information and the long-/short-range orders reflected by crystalline pattern, lamellas, and single-/double-helices, we conclude that AM is easier to form V-type inclusion complexes with ethanol. More single helix of V-amylose was transformed from B-type polymorph after ethanol exchange, which had significantly broadened dLozentz in PS. The TG spectra proved that the novel PS has the stable thermodynamic property. Overall, the finding of an objective regular between AM and pore sizes of PS in this study may support the other work related to PS.
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Affiliation(s)
- Ruiling Lv
- Ningbo Innovation Center, Zhejiang University, Ningbo 315100, China; College of Biosystems Engineering and Food Science, National Engineering Laboratory of Intelligent Food Technology and Equipment, the State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, China
| | - Yi Chen
- Ningbo Innovation Center, Zhejiang University, Ningbo 315100, China; College of Biosystems Engineering and Food Science, National Engineering Laboratory of Intelligent Food Technology and Equipment, the State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, China
| | - Jianwei Zhou
- School of Mechanical and Energy Engineering, NingboTech University, Ningbo 315100, China
| | - Ling Jiang
- College of Biosystems Engineering and Food Science, National Engineering Laboratory of Intelligent Food Technology and Equipment, the State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, China; Innovation Center of Yangtze River Delta, Zhejiang University, Jiaxing 314102, China
| | - Enbo Xu
- College of Biosystems Engineering and Food Science, National Engineering Laboratory of Intelligent Food Technology and Equipment, the State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, China; Innovation Center of Yangtze River Delta, Zhejiang University, Jiaxing 314102, China
| | - Jiangang Ling
- Institute of Agricultural Products Processing, Ningbo Academy of Agricultural Sciences, Ningbo, Zhejiang 315000, China
| | - Junyu Tang
- College of Biosystems Engineering and Food Science, National Engineering Laboratory of Intelligent Food Technology and Equipment, the State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, China.
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Yu X, Liu J, Bauer A, Wei X, Smith S, Ning S, Wang C. Enhancing tumor endothelial permeability using MUC18-targeted gold nanorods and mild hyperthermia. J Colloid Interface Sci 2024; 676:101-109. [PMID: 39018803 DOI: 10.1016/j.jcis.2024.07.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 06/13/2024] [Accepted: 07/05/2024] [Indexed: 07/19/2024]
Abstract
The Enhanced Permeability and Retention (EPR) effect, an elevated accumulation of drugs and nanoparticles in tumors versus in normal tissues, is a widely used concept in the field of cancer therapy. It assumes that the vasculature of solid tumors would possess abnormal, leaky endothelial cell barriers, allowing easy access of intravenous-delivered drugs and nanoparticles to tumor regions. However, the EPR effect is not always effective owing to the heterogeneity of tumor endothelium over time, location, and species. Herein, we introduce a unique nanoparticle-based approach, using MUC18-targeted gold nanorods coupled with mild hyperthermia, to specifically enhance tumor endothelial permeability. This improves the efficacy of traditional cancer therapy including photothermal therapy and anticancer drug delivery by increasing the transport of photo-absorbers and drugs across the tumor endothelium. Using single cell imaging tools and classic analytical approaches in molecular biology, we demonstrate that MUC18-targeted gold nanorods and mild hyperthermia enlarge the intercellular gaps of tumor endothelium by inducing circumferential actin remodeling, stress fiber formation, and cell contraction of adjacent endothelial cells. Considering MUC18 is overexpressed on a variety of tumor endothelium and cancer cells, this approach paves a new avenue to improve the efficacy of cancer therapy by actively enhancing the tumor endothelial permeability.
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Affiliation(s)
- Xiao Yu
- Nanoscience and Biomedical Engineering, South Dakota School of Mines and Technology, 501 E St Joseph Street, Rapid City, South Dakota 57701, USA
| | - Jinyuan Liu
- Nanoscience and Biomedical Engineering, South Dakota School of Mines and Technology, 501 E St Joseph Street, Rapid City, South Dakota 57701, USA
| | - Aaron Bauer
- Nanoscience and Biomedical Engineering, South Dakota School of Mines and Technology, 501 E St Joseph Street, Rapid City, South Dakota 57701, USA
| | - Xianqing Wei
- Department of Breast Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Steve Smith
- Nanoscience and Biomedical Engineering, South Dakota School of Mines and Technology, 501 E St Joseph Street, Rapid City, South Dakota 57701, USA
| | - Shipeng Ning
- Department of Breast Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China.
| | - Congzhou Wang
- Nanoscience and Biomedical Engineering, South Dakota School of Mines and Technology, 501 E St Joseph Street, Rapid City, South Dakota 57701, USA.
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Xie M, Qian G, Ye Q, Zhang Y, Wang M, Deng Z, Yu Y, Chen C, Li H, Li D. Dual-crosslinked reduced graphene oxide/polyimide aerogels possessing regulable superelasticity, fatigue resistance, and rigidity for thermal insulation and flame retardant protection in harsh conditions. J Colloid Interface Sci 2024; 676:1011-1022. [PMID: 39068833 DOI: 10.1016/j.jcis.2024.07.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 07/09/2024] [Accepted: 07/11/2024] [Indexed: 07/30/2024]
Abstract
Polyimide (PI) aerogels have various applications in aerospace, national defense, military industry, and rail transit equipment. This paper reports a series of ultra-lightweight, high elasticity, high strength, low thermal conductivity, and high flame retardant rGO/PI nanocomposite aerogels prepared by the ice templating method. The effects of freezing processes (unidirectional freezing and random freezing), chemical composition, and environmental temperature (-196-200 °C) on the morphology, mechanical, and thermal properties of the aerogels were systematically studied. The results indicated that unidirectional aerogels exhibit anisotropic mechanical properties and thermal performance. Compression in the horizontal direction showed high elasticity, high fatigue resistance, and superior thermal insulation. Meanwhile, in the vertical direction, it demonstrated high strength (PI-G-9 reaching 14 MPa). After 10,000 cycles of compression in the horizontal direction (at 50 % strain), the unidirectional PI-G-5 aerogel still retains 90.32 % height retention, and 78.5 % stress retention, and exhibited a low stable energy loss coefficient (22.11 %). It also possessed a low thermal conductivity (32.8 mW m-1 K-1) and demonstrated good thermal insulation performance by sustaining at 200 °C for 30 min. Interestingly, the elasticity of the aerogels was enhanced with decreasing temperatures, achieving a height recovery rate of up to 100 % when compressed in liquid nitrogen. More importantly, the rGO/PI aerogels could be utilized over a wide temperature range (-196-200 °C) and had a high limiting oxygen index (LOI) ranging from 43.3 to 48.1 %. Therefore, this work may provide a viable approach for designing thermal insulation and flame-retardant protective materials with excellent mechanical properties that are suitable for harsh environments.
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Affiliation(s)
- Mingzhu Xie
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low-dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Guangtao Qian
- Collaborative Innovation Center for Civil Aviation Composites, Donghua University, 2999 North Renmin Road, Shanghai, 201620, China
| | - Qibin Ye
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low-dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Yicai Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low-dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Mengxia Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low-dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Zhiqing Deng
- Shanghai Institute of Precision Measurement and Test, Shanghai 201109, China
| | - Youhai Yu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low-dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Chunhai Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low-dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Hui Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low-dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Dandan Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low-dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
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56
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Zhang X, Jian J, Luo Z, Li G, Huang Y, Wu Y, Li D, Li L. Fabrication of edible nanocellulose chitosan bi-component film based on a novel "swell-permeate" approach. Carbohydr Polym 2024; 346:122632. [PMID: 39245500 DOI: 10.1016/j.carbpol.2024.122632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 08/03/2024] [Accepted: 08/16/2024] [Indexed: 09/10/2024]
Abstract
The fabrication of multi-component film with colloidal particles could be inconvenient. A novel "swell-permeate" (SP) strategy was proposed to form homogeneous multi-component films. The SP strategy allows colloidal particles to fit into the polymer network by stretching the polymer chains assisted by water. We demonstrated the strategy by creating films with polysaccharide substrates as β-cyclodextrin grafted chitosan (CS) with nanocellulose. The addition of nanocellulose significantly increased the mechanical properties and the barrier performance of the films. The size of nanocellulose particles in affecting mechanical properties was investigated by applying different length of cellulose nanocrystal (CNC), the longer of which, due to denser physical entanglements, showed a better increase to the film in the elastic modulus and tensile strength to 4.54-fold and 5.71-fold, respectively. The films were also loaded with ethyl-p-coumarate (EpCA) and had an enhanced performance in anti-microbial for Altenaria alternata, Salmonella typhi, and Escherichia coli. The anti-oxidative property was increased as well, and both effects were valid both in vitro and in ready-to-eat apples. The strategy provides a practical and convenient method for fabricating colloidal particle containing films, and the novel idea of "swell-permeate" is potentially regarded as a new solution to the challenge of ready-to-eat food quality maintenance.
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Affiliation(s)
- Xiaochen Zhang
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou 310058, China
| | - Jiahong Jian
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou 310058, China
| | - Zisheng Luo
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou 310058, China; National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang Engineering Laboratory of Food Technology and Equipment, Zhejiang University, Hangzhou 310058, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China
| | - Guo Li
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou 310058, China
| | - Yifeng Huang
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou 310058, China
| | - Yue Wu
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou 310058, China
| | - Dong Li
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou 310058, China.
| | - Li Li
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou 310058, China; National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang Engineering Laboratory of Food Technology and Equipment, Zhejiang University, Hangzhou 310058, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China.
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57
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Huang S, Zhang Y, Wang T, Li X. Molecular weight-mediated interaction changes for enhancing structural stability, release behavior and M cells-targeting transport efficacy of starch-based nanoparticles. Carbohydr Polym 2024; 346:122639. [PMID: 39245530 DOI: 10.1016/j.carbpol.2024.122639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 08/10/2024] [Accepted: 08/18/2024] [Indexed: 09/10/2024]
Abstract
Molecular weight (Mw) of ligand-mediated nanocarriers plays a pivotal role in their architecture and properties. In this study, self-assembled ovalbumin (OVA)-loaded nanoparticles were meticulously engineered by starch polyelectrolytes with different Mw. Results unveiled that, tailoring Mw of GRGDS pentapeptides-grafted carboxymethyl starch (G-CMS) displayed strong binding-affinity and transport efficiency through microfold cells (M cells) pathway in the simulated intestinal epithelial cell monolayer in which M cells were randomly located in the Caco-2 cells monolayer. Notably, nanoparticles assembled from G-CMS with relatively higher Mw exhibited more compact structures due to the stronger interactions between layers compared to that with relatively lower Mw, which rendered remarkably stable and only 19.01 % in vitro OVA leakage under conditions of the upper gastrointestinal tract. Subsequently, more intact nanoparticles reached M cells after in vitro digestion and exhibited higher transport efficiency through the M cells pathways (apparent permeability: 9.38 × 10-5 cm/s) than Caco-2 cells, attributing to specific- and non-specific binding affinity towards M cells. Therefore, optimal Mw tailoring of starch polyelectrolytes can mediate the molecular interactions among their assembled layers and the interactions with M cells to balance the structural compactness, release and transport efficacy of nanoparticles, holding promise for advancing M cells-targeting oral delivery technologies.
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Affiliation(s)
- Shuangxia Huang
- Ministry of Education Engineering Research Center of Starch and Protein Processing, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yiping Zhang
- Ministry of Education Engineering Research Center of Starch and Protein Processing, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Henan Engineering Laboratory for Bioconversion Technology of Functional Microbes, College of Life Science, Henan Normal University, Xinxiang 453007, China
| | - Tianxing Wang
- Ministry of Education Engineering Research Center of Starch and Protein Processing, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xiaoxi Li
- Ministry of Education Engineering Research Center of Starch and Protein Processing, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.
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Abidnejad R, Robertson D, Khakalo A, Gholami Haghighi Fard M, Seppälä A, Pasquier E, Tardy BL, Mattos BD, Rojas OJ. Gas evolution in self-extinguishing and insulative nanopolysaccharide-based hybrid foams. Carbohydr Polym 2024; 346:122646. [PMID: 39245507 DOI: 10.1016/j.carbpol.2024.122646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 08/10/2024] [Accepted: 08/20/2024] [Indexed: 09/10/2024]
Abstract
Lightweight, energy-efficient materials in building construction typically include polymeric and composite foams. However, these materials pose significant fire hazards due to their high combustibility and toxic gas emissions, including carbon monoxide and hydrogen cyanide. This study delves into the latter aspects by comparing hybrid systems based on nanofiber-reinforced silica-based Pickering foams with a synthetic reference (polyurethane foams). The extent and dynamics of fire retardancy and toxic gas evolution were assessed, and the results revealed the benefits of combining the thermal insulation of silica with the structural strength of biobased nanofibers, the latter of which included anionic and phosphorylated cellulose as well as chitin nanofibers. We demonstrate that the nanofiber-reinforced silica-based Pickering foams are thermal insulative and provide both fire safety and energy efficiency. The results set the basis for the practical design of hybrid foams to advance environmental sustainability goals by reducing energy consumption in built environments.
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Affiliation(s)
- Roozbeh Abidnejad
- Department of Bioproducts and Biosystems, Aalto University School of Chemical Engineering, Espoo, Finland
| | - Daria Robertson
- Department of Bioproducts and Biosystems, Aalto University School of Chemical Engineering, Espoo, Finland
| | - Alexey Khakalo
- VTT Technical Research Centre of Finland, Espoo, Finland
| | | | - Ari Seppälä
- Department of Mechanical Engineering, Aalto University School of Engineering, Espoo, Finland
| | - Eva Pasquier
- Department of Bioproducts and Biosystems, Aalto University School of Chemical Engineering, Espoo, Finland; RISE PFI, Høgskoleringen 6b, Trondheim 7491, Norway
| | - Blaise L Tardy
- Department of Chemical and Petroleum Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Bruno D Mattos
- Department of Bioproducts and Biosystems, Aalto University School of Chemical Engineering, Espoo, Finland.
| | - Orlando J Rojas
- Department of Bioproducts and Biosystems, Aalto University School of Chemical Engineering, Espoo, Finland; Bioproducts Institute, Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, BC V6T 1Z3, Canada; Department of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1, Canada; Department of Wood Science, University of British Columbia, Vancouver, BC V6T 1Z4, Canada.
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59
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Bilkay M, Yazıcı S, Erkmen C, Celik I, Satana Kara HE. Unraveling the interaction mechanism between orphan drug Nitisinone and bovine serum albumin through spectroscopic and in silico approaches. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 322:124818. [PMID: 39029202 DOI: 10.1016/j.saa.2024.124818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 07/09/2024] [Accepted: 07/13/2024] [Indexed: 07/21/2024]
Abstract
The interaction between Nitisinone (NTBC) and bovine serum albumin (BSA) as the transport protein in a circulating system was investigated for the first time utilizing various analytical (UV-Vis spectrophotometry, fluorescence spectroscopy, dynamic light scattering, and differential scanning calorimetry) and computational (molecular docking and molecular dynamics simulations) methods. The BSA fluorescence intensity was quenched upon interaction with NTBC, and the quenching mechanism was observed as static. The interaction between NTBC and BSA was examined at 288 K, 298 K, and 308 K where the binding constants were found to be 1.44 × 105 ± 0.22 M-1, 5.18 × 104 ± 0.20 M-1, and 3.02 × 104 ± 0.22 M-1 respectively, suggesting an intermediate binding affinity between NTBC and BSA. Changes in the microenvironment surrounding tryptophan and tyrosine residues of BSA were elucidated using 3-D fluorescence spectroscopy. Thermodynamic studies revealed the calculated values of ΔH = - 54.34 ± 5 kJ/mol and ΔS = - 0.0908 ± 0.24 kJ/mol K-1, indicating the involvement of van der Waals forces and hydrogen bonds in the interaction between NTBC and BSA. Moreover, the interaction's spontaneous nature was evidenced by negative ΔG values across all temperatures. Using dynamic light scattering, it was observed that higher NTBC concentrations led to a gradual rise in hydrodynamic diameter and notable aggregation of the NTBC-BSA complex. Moreover, changing signal values and shifted peaks of BSA, NTBC, and complex in differential scanning calorimetry curves, meant there were molecular interactions between the NTBC and BSA. In silico approaches also elucidated how NTBC binds to active sites on BSA, further supporting other findings. Moreover, molecular docking studies offer a more profound insight into the changing dynamics of hydrophobic, hydrogen, and halogen bonding involved in stabilizing the NTBC-BSA complex.
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Affiliation(s)
- Mehmetcan Bilkay
- Gazi University, Faculty of Pharmacy, Department of Analytical Chemistry, 06330 Ankara, Türkiye
| | - Sule Yazıcı
- Gazi University, Faculty of Pharmacy, Department of Analytical Chemistry, 06330 Ankara, Türkiye
| | - Cem Erkmen
- Istanbul Aydın University, Faculty of Pharmacy, Department of Analytical Chemistry, Istanbul 34295, Türkiye.
| | - Ismail Celik
- Erciyes University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Kayseri 38039, Türkiye
| | - Hayriye Eda Satana Kara
- Gazi University, Faculty of Pharmacy, Department of Analytical Chemistry, 06330 Ankara, Türkiye
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60
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Li Y, Rodriguez-Otero MR, Champion JA. Self-assembled protein vesicles as vaccine delivery platform to enhance antigen-specific immune responses. Biomaterials 2024; 311:122666. [PMID: 38879893 DOI: 10.1016/j.biomaterials.2024.122666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 05/18/2024] [Accepted: 06/11/2024] [Indexed: 06/18/2024]
Abstract
Self-assembling protein nanoparticles are beneficial platforms for enhancing the often weak and short-lived immune responses elicited by subunit vaccines. Their benefits include multivalency, similar sizes as pathogens and control of antigen orientation. Previously, the design, preparation, and characterization of self-assembling protein vesicles presenting fluorescent proteins and enzymes on the outer vesicle surface have been reported. Here, a full-size model antigen protein, ovalbumin (OVA), was genetically fused to the recombinant vesicle building blocks and incorporated into protein vesicles via self-assembly. Characterization of OVA protein vesicles showed room temperature stability and tunable size. Immunization of mice with OVA protein vesicles induced strong antigen-specific humoral and cellular immune responses. This work demonstrates the potential of protein vesicles as a modular platform for delivering full-size antigen proteins that can be extended to pathogen antigens to induce antigen specific immune responses.
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Affiliation(s)
- Yirui Li
- BioEngineering Program, Georgia Institute of Technology, USA
| | - Mariela R Rodriguez-Otero
- BioEngineering Program, Georgia Institute of Technology, USA; School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, USA
| | - Julie A Champion
- BioEngineering Program, Georgia Institute of Technology, USA; School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, USA.
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61
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Yuan H, Prabhala SV, Coolbaugh MJ, Stimple SD, Wood DW. Improved self-cleaving precipitation tags for efficient column free bioseparations. Protein Expr Purif 2024; 224:106578. [PMID: 39153561 DOI: 10.1016/j.pep.2024.106578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Revised: 07/31/2024] [Accepted: 08/14/2024] [Indexed: 08/19/2024]
Abstract
Current biological research requires simple protein bioseparation methods capable of purifying target proteins in a single step with high yields and purities. Conventional affinity tag-based approaches require specific affinity resins and expensive proteolytic enzymes for tag removal. Purification strategies based on self-cleaving aggregating tags have been previously developed to address these problems. However, these methods often utilize C-terminal cleaving contiguous inteins which suffer from premature cleavage, resulting in significant product loss during protein expression. In this work, we evaluate two novel mutants of the Mtu RecA ΔI-CM mini-intein obtained through yeast surface display for improved protein purification. When used with the elastin-like-polypeptide (ELP) precipitation tag, the novel mutants - ΔI-12 and ΔI-29 resulted in significantly higher precursor content, product purity and process yield compared to the original Mtu RecA ΔI-CM mini-intein. Product purities ranging from 68 % to 94 % were obtained in a single step for three model proteins - green fluorescent protein (GFP), maltose binding protein (MBP) and beta-galactosidase (beta-gal). Further, high cleaving efficiency was achieved after 5 h under most conditions. Overall, we have developed improved self-cleaving precipitation tags which can be used for purifying a wide range of proteins cheaply at laboratory scale.
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Affiliation(s)
- Hongyu Yuan
- William G. Lowrie Department of Chemical and Biomolecular Engineering, Ohio State University, Columbus, OH, 43210, USA
| | - Sai Vivek Prabhala
- William G. Lowrie Department of Chemical and Biomolecular Engineering, Ohio State University, Columbus, OH, 43210, USA
| | - Michael J Coolbaugh
- William G. Lowrie Department of Chemical and Biomolecular Engineering, Ohio State University, Columbus, OH, 43210, USA
| | - Samuel D Stimple
- William G. Lowrie Department of Chemical and Biomolecular Engineering, Ohio State University, Columbus, OH, 43210, USA
| | - David W Wood
- William G. Lowrie Department of Chemical and Biomolecular Engineering, Ohio State University, Columbus, OH, 43210, USA.
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62
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Wei Y, Cai Z, Liu Z, Liu C, Kong T, Li Z, Song Y. All-aqueous synthesis of alginate complexed with fibrillated protein microcapsules for membrane-bounded culture of tumor spheroids. Carbohydr Polym 2024; 345:122580. [PMID: 39227124 DOI: 10.1016/j.carbpol.2024.122580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 07/09/2024] [Accepted: 08/02/2024] [Indexed: 09/05/2024]
Abstract
Water-in-water (W/W) emulsions provide bio-compatible all-aqueous compartments for artificial patterning and assembly of living cells. Successful entrapment of cells within a W/W emulsion via the formation of semipermeable capsules is a prerequisite for regulating on the size, shape, and architecture of cell aggregates. However, the high permeability and instability of the W/W interface, restricting the assembly of stable capsules, pose a fundamental challenge for cell entrapment. The current study addresses this problem by synthesizing multi-armed protein fibrils and controlling their assembly at the W/W interface. The multi-armed protein fibrils, also known as 'fibril clusters', were prepared by cross-linking lysozyme fibrils with multi-arm polyethylene glycol (PEG) via click chemistry. Compared to linear-structured fibrils, fibril clusters are strongly adsorbed at the W/W interface, forming an interconnected meshwork that better stabilizes the W/W emulsion. Moreover, when fibril clusters are complexed with alginate, the hybrid microcapsules demonstrate excellent mechanical robustness, semi-permeability, cytocompatibility and biodegradability. These advantages enable the encapsulation, entrapment and long-term culture of tumor spheroids, with great promise for applications for anti-cancer drug screening, tumor disease modeling, and tissue repair engineering.
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Affiliation(s)
- Yue Wei
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518071, China
| | - Zhixiang Cai
- Future Food Laboratory, Innovation Center of Yangtze River Delta, Zhejiang University, Jiashan, Zhejiang 314100, China.
| | - Zhou Liu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518071, China
| | - Changkun Liu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518071, China
| | - Tiantian Kong
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, Guangdong 518071, China.
| | - Zhiwei Li
- Department of Orthopedic Trauma, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai 200127, China.
| | - Yang Song
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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63
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Courtecuisse E, Bourasseau S, Christensen BE, Schatz C. Synthesis of linear chitosan-block-dextran copolysaccharides with dihydrazide and dioxyamine linkers. Carbohydr Polym 2024; 345:122576. [PMID: 39227123 DOI: 10.1016/j.carbpol.2024.122576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 06/11/2024] [Accepted: 08/02/2024] [Indexed: 09/05/2024]
Abstract
Dihydrazide (ADH) and dioxyamine (PDHA) were assessed for their efficacy in coupling chitosan and dextran via their reducing ends. Initially, the end-functionalization of the individual polysaccharide blocks was investigated. Under non-reducing conditions, chitosan with a 2,5-anhydro-D-mannose unit at its reducing end exhibited high reactivity with both PDHA and ADH. Dextran, with a normal reducing end, showed superior reactivity with PDHA compared to ADH, although complete conversion with ADH could be achieved under reductive conditions with NaBH3CN. Importantly, the oxime bond in PDHA conjugates exhibited greater stability against hydrolysis compared to the hydrazone bond in ADH conjugates. The optimal block coupling method consisted in reacting chitosan with an excess of dextran pre-functionalized with PDHA. The copolysaccharides could be synthesized in high yields under both reducing and non-reducing conditions. This methodology was applied to relatively long polysaccharide blocks with molecular weight up to 14,000 g/mol for chitosan and up to 40,000 g/mol for dextran. Surprisingly, block copolysaccharides did not self-assemble at neutral or basic pH; rather, they precipitated due to hydrogen bonding between neutralized amino groups of chitosan. However, nanoparticles could be obtained through a nanoprecipitation approach.
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Affiliation(s)
- Elise Courtecuisse
- Université de Bordeaux, CNRS, Bordeaux INP, Laboratoire de chimie des polymères organiques (LCPO), UMR 5629, 33600 Pessac, France
| | - Sylvain Bourasseau
- Université de Bordeaux, CNRS, Bordeaux INP, Laboratoire de chimie des polymères organiques (LCPO), UMR 5629, 33600 Pessac, France
| | - Bjørn E Christensen
- NOBIPOL - Department of Biotechnology and Food Science, NTNU, Trondheim, Norway.
| | - Christophe Schatz
- Université de Bordeaux, CNRS, Bordeaux INP, Laboratoire de chimie des polymères organiques (LCPO), UMR 5629, 33600 Pessac, France.
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64
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An FK, Li MY, Luo HL, Liu XL, Fu Z, Ren MH. Structural properties and antioxidant capacity of different aminated starch-phenolic acid conjugates. Food Chem 2024; 460:140592. [PMID: 39067431 DOI: 10.1016/j.foodchem.2024.140592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 07/10/2024] [Accepted: 07/22/2024] [Indexed: 07/30/2024]
Abstract
Different aminated starch (AS) [EEAS (introducing ethylenediamine into starch using cross-linking-etherification-amination method (CEA)), EPAS (introducing o-phenylenediamine using CEA), OEAS (introducing ethylenediamine using cross-linking-oxidation-amination method (COA)), and OPAS (introducing o-phenylenediamine using COA)] were synthesized. The AS-phenolic acids [gallic acid (GA), syringic acid (SA), and vanillic acid (VA)] conjugates were prepared by laccase-catalyzed reaction. The grafting efficiency of EEAS on GA, SA, and VA was 36.59%, 69.71%, and 68.85%, respectively. SA reduced the maximum depolymerization rate of EEAS. The relative crystallinity of EEAS and EPAS grafted phenolic acid increased, and their particles showed severe breakage in appearance. OEAS-phenolic acid conjugates lost its granular structure and behaved as flakes and lumps, while the surface of OPAS-phenolic acid conjugates remained smooth after grafting phenolic acid. GA increased the DPPH· scavenging efficiency of EEAS from 16.12% to 79.92%. The increased antioxidant capacity of the conjugates suggested that AS-phenolic acids conjugates have high potential for applications.
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Affiliation(s)
- Feng-Kun An
- Institute of Light Industry and Food Engineering, Guangxi University, Nanning, China; Key Laboratory of Deep Processing and Safety Control for Specialty Agricultural Products in Guangxi Universities, Guangxi University, Nanning, China
| | - Meng-Yun Li
- Institute of Light Industry and Food Engineering, Guangxi University, Nanning, China; Key Laboratory of Deep Processing and Safety Control for Specialty Agricultural Products in Guangxi Universities, Guangxi University, Nanning, China
| | - Hai-Lu Luo
- Institute of Light Industry and Food Engineering, Guangxi University, Nanning, China; Key Laboratory of Deep Processing and Safety Control for Specialty Agricultural Products in Guangxi Universities, Guangxi University, Nanning, China
| | - Xing-Long Liu
- Institute of Light Industry and Food Engineering, Guangxi University, Nanning, China; Key Laboratory of Deep Processing and Safety Control for Specialty Agricultural Products in Guangxi Universities, Guangxi University, Nanning, China
| | - Zhen Fu
- Institute of Light Industry and Food Engineering, Guangxi University, Nanning, China; Key Laboratory of Deep Processing and Safety Control for Specialty Agricultural Products in Guangxi Universities, Guangxi University, Nanning, China.
| | - Min-Hong Ren
- Guangxi Vocational & Technical Institute of Industry, Nanning 530001, China
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65
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Saad J, Martins ML, Dia V, Wang T. Ice recrystallization inhibition activity of pulse protein hydrolysates after immobilized metal affinity separation. Food Chem 2024; 460:140574. [PMID: 39089028 DOI: 10.1016/j.foodchem.2024.140574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 06/25/2024] [Accepted: 07/21/2024] [Indexed: 08/03/2024]
Abstract
Creating molecules capable of inhibiting ice recrystallization is an active research area aiming to improve the freeze-thaw characteristics of foods and biomedical materials. Peptide mixtures have shown promise in preventing freezing-induced damage, but less is known about the relationship between their amino acid compositions and ice recrystallization inhibition (IRI) activities. In this article, we used Ni2+ immobilized metal affinity chromatography (IMAC) to fractionate pulse protein hydrolysates, created by Alcalase and trypsin, into mixtures lacking and enriched in His, and Cys residues. The aim of this study was to fractionate pulse protein hydrolysates based on their amino acid compositions and evaluate their resulting physicochemical and IRI characteristics. Ni2+ IMAC fractionation induced IRI activity in all of the evaluated soy, chickpea, and pea protein hydrolysates regardless of their amino acid composition. Ni2+ IMAC fractionation produced chemically distinct fractions of peptides, differing by their molecular weights, amino acid composition, and IRI activities. The resulting peptide mixtures' molecular weight, amino acid composition, secondary structure, and sodium ion levels were found to have no correlation with their IRI activities. Thus, we demonstrate for the first time the ability of Ni2+ IMAC fractionation to induce IRI activity in hydrolyzed pulse proteins.
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Affiliation(s)
- Joshua Saad
- Department of Food Science, The University of Tennessee, 2510 River Dr, Knoxville, TN 37996-4539, USA
| | - Murillo Longo Martins
- Institute for Advanced Materials and Manufacturing, The University of Tennessee, 2641 Osprey Vista Way, Knoxville, TN 37920, USA
| | - Vermont Dia
- Department of Food Science, The University of Tennessee, 2510 River Dr, Knoxville, TN 37996-4539, USA.
| | - Toni Wang
- Department of Food Science, The University of Tennessee, 2510 River Dr, Knoxville, TN 37996-4539, USA.
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66
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Sun W, Zuo X, Zhang Y, Zhou C, Guo S, Li W, Run M, Qin J. Quaternary ammonium grafted chitosan hydrogel with enhanced antibacterial performance as tannin acid and deferoxamine carrier to promote diabetic wound healing. Colloids Surf B Biointerfaces 2024; 244:114160. [PMID: 39142232 DOI: 10.1016/j.colsurfb.2024.114160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Revised: 08/10/2024] [Accepted: 08/10/2024] [Indexed: 08/16/2024]
Abstract
The delay of diabetic wound healing puts a huge burden on the society. The key factors hindering wound healing include bacterial infection, unresolved inflammation and poorly generated blood vessels. In this paper, glycidyl trimethyl ammonium chloride (GTA) was grafted to chitosan (CS) to obtain quaternary ammonium grafted chitosan (QCS) with enhanced antibacterial performance, and then cross-linked by dialdehyde terminated poly(ethylene oxide) (PEO DA) to construct QCS/PEO DA hydrogel with tissue adhesion, biodegradation and self-healing properties. The QCS/PEO DA hydrogel is loaded with tannin acid (TA) and deferoxamine (DFO) to enhance antioxidant property and angiogenesis. At the same time, the TA and DFO loaded TA@DFO/hydrogel preserved the biocompatibility and biodegradability of chitosan. Moreover, the multifunctional hydrogel behaved excellent hemostatic properties in mice model and significantly promoted the healing efficacy of diabetic wounds. Overall, the TA@DFO/hydrogel is promising anti-infection dressing material for diabetic wound healing.
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Affiliation(s)
- Weichen Sun
- College of Chemistry and Materials Science, Hebei University, Baoding City, Hebei Province 071002, China
| | - Xiaoting Zuo
- College of Chemistry and Materials Science, Hebei University, Baoding City, Hebei Province 071002, China
| | - Yu Zhang
- College of Chemistry and Materials Science, Hebei University, Baoding City, Hebei Province 071002, China
| | - Chengyan Zhou
- College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China; State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China.
| | - Shuai Guo
- School of Life Sciences, Hebei University, Baoding City, Hebei Province 071002, China
| | - Wenjuan Li
- Key Laboratory of Pathogenesis mechanism and control of inflammatory-autoimmune diseases in Hebei Province, Hebei University, Baoding City, Hebei Province 071002, China
| | - Mingtao Run
- College of Chemistry and Materials Science, Hebei University, Baoding City, Hebei Province 071002, China.
| | - Jianglei Qin
- College of Chemistry and Materials Science, Hebei University, Baoding City, Hebei Province 071002, China; Key Laboratory of Pathogenesis mechanism and control of inflammatory-autoimmune diseases in Hebei Province, Hebei University, Baoding City, Hebei Province 071002, China.
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67
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Seisto A, Borisova AS, Pylkkänen R, Mohammadi P. Tailoring hydrophobicity and strength in spider silk-inspired coatings via thermal treatments. Comput Struct Biotechnol J 2024; 25:177-185. [PMID: 39328903 PMCID: PMC11424758 DOI: 10.1016/j.csbj.2024.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2024] [Revised: 09/14/2024] [Accepted: 09/16/2024] [Indexed: 09/28/2024] Open
Abstract
The advent of advanced coatings has transformed material functionalities, extending their roles from basic coverage and visual appeal to include unique properties such as self-healing, superior hydrophobicity, and antimicrobial action. However, the traditional dependency on petrochemical-derived materials for these coatings raises environmental concerns. This study proposes the use of renewable and alternative materials for coating development. We present the use of bioengineered spider silk-inspired protein (SSIP), produced through recombinant technology, as a viable, eco-friendly alternative due to their ease of processing under ambient pressure and the utilization of water as a solvent, alongside their exceptional physicochemical properties. Our research investigates the effects of different thermal treatments and protein concentrations on the mechanical strength and surface water repellency of coatings on silica bases. Our findings reveal a direct correlation between the temperature of heat treatment and the enhancements in surface hydrophobicity and mechanical strength, where elevated temperatures facilitate increased resistance to water and improved mechanical integrity. Consequently, we advocate SSIPs present a promising, sustainable choice for advanced coatings, providing a pathway to fine-tune coating recipes for better mechanical and hydrophobic properties with a reduced ecological footprint, finding potential uses in various fields such as electronics.
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Affiliation(s)
- Anni Seisto
- VTT Technical Research Centre of Finland, FI-02044 VTT, Finland
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68
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Charlton SG, Jana S, Chen J. Yielding behaviour of chemically treated Pseudomonas fluorescens biofilms. Biofilm 2024; 8:100209. [PMID: 39071175 PMCID: PMC11279707 DOI: 10.1016/j.bioflm.2024.100209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 06/20/2024] [Accepted: 07/02/2024] [Indexed: 07/30/2024] Open
Abstract
The mechanics of biofilms are intrinsically shaped by their physicochemical environment. By understanding the influence of the extracellular matrix composition, pH and elevated levels of cationic species on the biofilm rheology, novel living materials with tuned properties can be formulated. In this study, we examine the role of a chaotropic agent (urea), two divalent cations and distilled deionized water on the nonlinear viscoelasticity of a model biofilm Pseudomonas fluorescens. The structural breakdown of each biofilm is quantified using tools of non-linear rheology. Our findings reveal that urea induced a softening response, and displayed strain overshoots comparable to distilled deionized water, without altering the microstructural packing fraction and macroscale morphology. The absorption of divalent ferrous and calcium cations into the biofilm matrix resulted in stiffening and a reduction in normalized elastic energy dissipation, accompanied by macroscale morphological wrinkling and moderate increases in the packing fraction. Notably, ferrous ions induced a predominance of rate dependent yielding, whereas the calcium ions resulted in equal contribution from both rate and strain dependent yielding and structural breakdown of the biofilms. Together, these results indicate that strain rate increasingly becomes an important factor controlling biofilm fluidity with cation-induced biofilm stiffening. The finding can help inform effective biofilm removal protocols and in development of bio-inks for additive manufacturing of biofilm derived materials.
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Affiliation(s)
- Samuel G.V. Charlton
- Department of Civil, Environmental and Geomatic Engineering, Institute of Environmental Engineering, ETH Zürich, Zürich, 8093, Switzerland
- Newcastle University, School of Engineering, Newcastle Upon Tyne, NE1 7RU, United Kingdom
| | - Saikat Jana
- Ulster University, School of Engineering, 2-24 York Street, Belfast, BT15 1AP, United Kingdom
- Newcastle University, School of Engineering, Newcastle Upon Tyne, NE1 7RU, United Kingdom
| | - Jinju Chen
- Newcastle University, School of Engineering, Newcastle Upon Tyne, NE1 7RU, United Kingdom
- Loughborough University, Department of Materials, Loughborough, LE11 3TU, United Kingdom
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69
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Raghuwanshi VS, Mendoza DJ, Mata J, Garnier G. Modulating the isotopic hydrogen-deuterium exchange in functionalized nanocellulose to optimize SANS contrast. Carbohydr Polym 2024; 345:122591. [PMID: 39227127 DOI: 10.1016/j.carbpol.2024.122591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 08/01/2024] [Accepted: 08/06/2024] [Indexed: 09/05/2024]
Abstract
Contrast matching by isotopic exchange in cellulose allows visualizing functional groups, biomolecules, polymers and nanoparticles embedded in cellulosic composites. This isotopic exchange varies the scattering length density of cellulose to match its contrast with the background network. Here, contrast matching of microcrystalline-cellulose (MCC) and the functionalized nanocellulose-fiber (CNF) and cellulose nanocrystals (CNC) are elucidated by small angle neutron scattering (SANS). Results show no isotopic exchange occurs for the CNF surface functionalized with carboxyl nor for the CNC-High with a high sulfate groups concentration. Both CNC-Low, with low sulfate groups, and MCC exchange 1H with 1D in D2O. This is due to the high exchange probability of the labile C6 position primary -OH group. The structure of thermo-responsive poly-N-isopropylacrylamide (PNIPAM) chains grafted onto CNF (PNIPAM-grafted-CNF) was extracted by CNF contrast matching near the lower critical solution temperature. Contrast matching eradicates the CNF scattering to retain only the scattering from the grafted-PNIPAM chains. The coil to globule thermo-transition of PNIPAM was revealed by the power law variation from q-1.3 to q-4 in SANS. Isotopic exchange in functionalized cellulosic materials reveals the nano- and micro-scale structure of its individual components. This improved visualization by contrast matching can be extended to carbohydrate polymers to engineer biopharmaceutical and food applications.
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Affiliation(s)
- Vikram Singh Raghuwanshi
- Bioresource Processing Research Institute of Australia (BioPRIA), Department of Chemical and Biological Engineering, Monash University, Clayton, Victoria 3800, Australia.
| | - David Joram Mendoza
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria 3800 Australia
| | - Jitendra Mata
- Australian Centre for Neutron Scattering (ACNS), Australian Nuclear Science and Technology Organisation (ANSTO), Lucas Height, New South Wales 2234, Australia; School of Chemistry, University of New South Wales, NSW, Australia
| | - Gil Garnier
- Bioresource Processing Research Institute of Australia (BioPRIA), Department of Chemical and Biological Engineering, Monash University, Clayton, Victoria 3800, Australia.
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70
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Bigaj-Józefowska MJ, Zalewski T, Załęski K, Coy E, Frankowski M, Mrówczyński R, Grześkowiak BF. Three musketeers of PDA-based MRI contrasting and therapy. ARTIFICIAL CELLS, NANOMEDICINE, AND BIOTECHNOLOGY 2024; 52:321-333. [PMID: 38795050 DOI: 10.1080/21691401.2024.2356773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 05/13/2024] [Indexed: 05/27/2024]
Abstract
Polydopamine (PDA) stands as a versatile material explored in cancer nanomedicine for its unique properties, offering opportunities for multifunctional drug delivery platforms. This study explores the potential of utilizing a one-pot synthesis to concurrently integrate Fe, Gd and Mn ions into porous PDA-based theranostic drug delivery platforms called Ferritis, Gadolinis and Manganis, respectively. Our investigation spans the morphology, magnetic properties, photothermal characteristics and cytotoxicity profiles of those potent nanoformulations. The obtained structures showcase a spherical morphology, robust magnetic response and promising photothermal behaviour. All of the presented nanoparticles (NPs) display pronounced paramagnetism, revealing contrasting potential for MRI imaging. Relaxivity values, a key determinant of contrast efficacy, demonstrated competitive or superior performance compared to established, used contrasting agents. These nanoformulations also exhibited robust photothermal properties under near infra-red irradiation, showcasing their possible application for photothermal therapy of cancer. Our findings provide insights into the potential of metal-doped PDA NPs for cancer theranostics.
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Affiliation(s)
| | - Tomasz Zalewski
- NanoBioMedical Centre, Adam Mickiewicz University in Poznań, Poznań, Poland
| | - Karol Załęski
- NanoBioMedical Centre, Adam Mickiewicz University in Poznań, Poznań, Poland
| | - Emerson Coy
- NanoBioMedical Centre, Adam Mickiewicz University in Poznań, Poznań, Poland
| | - Marcin Frankowski
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Poznań, Poland
| | - Radosław Mrówczyński
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Poznań, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, Poznań, Poland
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71
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Haque MA, Shrestha A, Mikelis CM, Mattheolabakis G. Comprehensive analysis of lipid nanoparticle formulation and preparation for RNA delivery. Int J Pharm X 2024; 8:100283. [PMID: 39309631 PMCID: PMC11415597 DOI: 10.1016/j.ijpx.2024.100283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 08/21/2024] [Accepted: 09/07/2024] [Indexed: 09/25/2024] Open
Abstract
Nucleic acid-based therapeutics are a common approach that is increasingly popular for a wide spectrum of diseases. Lipid nanoparticles (LNPs) are promising delivery carriers that provide RNA stability, with strong transfection efficiency, favorable and tailorable pharmacokinetics, limited toxicity, and established translatability. In this review article, we describe the lipid-based delivery systems, focusing on lipid nanoparticles, the need of their use, provide a comprehensive analysis of each component, and highlight the advantages and disadvantages of the existing manufacturing processes. We further summarize the ongoing and completed clinical trials utilizing LNPs, indicating important aspects/questions worth of investigation, and analyze the future perspectives of this significant and promising therapeutic approach.
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Affiliation(s)
- Md. Anamul Haque
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71201, USA
| | - Archana Shrestha
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71201, USA
| | - Constantinos M. Mikelis
- Laboratory of Molecular Pharmacology, Department of Pharmacy, University of Patras, Patras 26504, Greece
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
| | - George Mattheolabakis
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71201, USA
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72
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Ghosh A, Bera AK, Singh V, Basu S, Pati F. Bioprinting of anisotropic functional corneal stroma using mechanically robust multi-material bioink based on decellularized cornea matrix. BIOMATERIALS ADVANCES 2024; 165:214007. [PMID: 39216318 DOI: 10.1016/j.bioadv.2024.214007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 07/08/2024] [Accepted: 08/23/2024] [Indexed: 09/04/2024]
Abstract
Corneal scarring is a common cause of blindness, affecting millions globally each year. A huge gap between the demand and supply of donor tissue currently limits corneal transplantation, the only definitive therapy for patients with corneal scarring. To overcome this challenge, researchers have harnessed the efficacy of 3D bioprinting to fabricate artificial corneal stromal constructs. With all the different bioinks available, the decellularized corneal matrix-based bioprinted construct can fulfill the required biological functionality but is limited by the lack of mechanical stiffness. Additionally, from a biophysical standpoint, it is necessary for an ideal corneal substitute to mimic the anisotropy of the cornea from the central optic zone to the surrounding periphery. In this study, we enhanced the mechanical robustness of decellularized cornea matrix (DCM) hydrogel by blending it with another natural polymer, sonicated silk fibroin solution in a defined ratio. Although hybrid hydrogel has an increased complex modulus than DCM hydrogel, it has a lower in vitro degradation rate and increased opaqueness due to the presence of crystalline beta-sheet conformation within the hydrogel. Therefore, we used this multi-material bioink-based approach to fabricate a corneal stromal equivalent where the outer peripheral corneal rim was printed with a mechanically robust polymeric blend of DCM and sonicated silk fibroin and the central optic zone was printed with only DCM. The bioprinted corneal stroma thus maintained its structural integrity and did not break when lifted with forceps. The two different bioinks were encapsulated with human limbus-derived mesenchymal stem cells (hLMSC) individually and 3D bioprinted in different patterns (concentric and parallel) to attain a native-like structure in terms of architecture and transparency. Thus, the bilayer cornea constructs maintained high cell viability and expressed keratocyte core proteins indicating optimal functionality. This approach helped to gain insight into bioprinting corneas with heterogeneous mechanical property without disturbing the structural clarity of the central optic zone.
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Affiliation(s)
- Anwesha Ghosh
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy 502284, Telangana, India
| | - Ashis Kumar Bera
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy 502284, Telangana, India
| | - Vivek Singh
- Centre Ocular Regeneration, Prof. Brien Holden Eye Research Centre L.V. Prasad Eye Institute, Hyderabad 500034, Telangana, India
| | - Sayan Basu
- Centre Ocular Regeneration, Prof. Brien Holden Eye Research Centre L.V. Prasad Eye Institute, Hyderabad 500034, Telangana, India
| | - Falguni Pati
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
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73
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He S, Ma L, Zheng Q, Wang Z, Chen W, Yu Z, Yan X, Fan K. Peptide nanozymes: An emerging direction for functional enzyme mimics. Bioact Mater 2024; 42:284-298. [PMID: 39285914 PMCID: PMC11403911 DOI: 10.1016/j.bioactmat.2024.08.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 08/23/2024] [Accepted: 08/27/2024] [Indexed: 09/19/2024] Open
Abstract
The abundance of molecules on early Earth likely enabled a wide range of prebiotic chemistry, with peptides playing a key role in the development of early life forms and the evolution of metabolic pathways. Among peptides, those with enzyme-like activities occupy a unique position between peptides and enzymes, combining both structural flexibility and catalytic functionality. However, their full potential remains largely untapped. Further exploration of these enzyme-like peptides at the nanoscale could provide valuable insights into modern nanotechnology, biomedicine, and even the origins of life. Hence, this review introduces the groundbreaking concept of "peptide nanozymes (PepNzymes)", which includes single peptides exhibiting enzyme-like activities, peptide-based nanostructures with enzyme-like activities, and peptide-based nanozymes, thus enabling the investigation of biological phenomena at nanoscale dimensions. Through the rational design of enzyme-like peptides or their assembly with nanostructures and nanozymes, researchers have found or created PepNzymes capable of catalyzing a wide range of reactions. By scrutinizing the interactions between the structures and enzyme-like activities of PepNzymes, we have gained valuable insights into the underlying mechanisms governing enzyme-like activities. Generally, PepNzymes play a crucial role in biological processes by facilitating small-scale enzyme-like reactions, speeding up molecular oxidation-reduction, cleavage, and synthesis reactions, leveraging the functional properties of peptides, and creating a stable microenvironment, among other functions. These discoveries make PepNzymes useful for diagnostics, cellular imaging, antimicrobial therapy, tissue engineering, anti-tumor treatments, and more while pointing out opportunities. Overall, this research provides a significant journey of PepNzymes' potential in various biomedical applications, pushing them towards new advancements.
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Affiliation(s)
- Shaobin He
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Biomacromolecules (CAS), CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
- Laboratory of Clinical Pharmacy, Department of Pharmacy, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, China
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Fujian Medical University, Fuzhou, 350004, China
| | - Long Ma
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Biomacromolecules (CAS), CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Qionghua Zheng
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Fujian Medical University, Fuzhou, 350004, China
| | - Zhuoran Wang
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Biomacromolecules (CAS), CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Wei Chen
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Fujian Medical University, Fuzhou, 350004, China
| | - Zihang Yu
- Department of Biomedical Engineering, Hajim School of Engineering & Applied Sciences, University of Rochester, Rochester, 14627, USA
| | - Xiyun Yan
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Biomacromolecules (CAS), CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
- Nanozyme Laboratory in Zhongyuan, Henan Academy of Innovations in Medical Science, Zhengzhou, Henan, 451163, China
| | - Kelong Fan
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Biomacromolecules (CAS), CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
- Nanozyme Laboratory in Zhongyuan, Henan Academy of Innovations in Medical Science, Zhengzhou, Henan, 451163, China
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74
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Zheng R, Zhong W, Chai M, Shi X. Dynamic compliance penis enlargement patch. Bioact Mater 2024; 42:194-206. [PMID: 39285912 PMCID: PMC11403245 DOI: 10.1016/j.bioactmat.2024.08.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 08/28/2024] [Accepted: 08/29/2024] [Indexed: 09/19/2024] Open
Abstract
Men are particularly sensitive to penis size, especially those with a deformed or injured penis. This can lead to a strong desire for penis enlargement surgery. Given the ethical sensitivities of the penis, penile implants need to be developed with both efficacy and safety. In this study, a polyvinyl alcohol (PVA) patch for penile enlargement prepared via cyclic freeze‒thaw cycles and alkaline treatment. The PVA hydrogels treated with 5 M NaOH had the best mechanical properties and stability. A negative Poisson's ratio structure is incorporated into the design of the enlargement patch, which allows it to conform well to the deformation of the penis. In rabbit models, the enlarged patches can effectively enlarge the penis without degradation or fibrosis while maintaining long-term stability in vivo. This innovation not only provides a safe option for patients in need of penile enlargement but also promises to make a broader contribution to the field of dynamic tissue repair.
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Affiliation(s)
- Rui Zheng
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, PR China
| | - Wenwen Zhong
- Department of Urology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, PR China
| | - Muyuan Chai
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China
- Dongguan Key Laboratory of Smart Biomaterials and Regenerative Medicine, The Tenth Affiliated Hospital, Southern Medical University, Dongguan, 523000, PR China
| | - Xuetao Shi
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, PR China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, PR China
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75
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Yang Q, Liu G, Chen G, Chen G, Chen K, Fan L, Tu Y, Chen J, Shi Z, Chen C, Liu S, Deng G, Deng X, Sun C, Li X, Yang S, Zheng S, Chen B. Novel injectable adhesive hydrogel loaded with exosomes for holistic repair of hemophilic articular cartilage defect. Bioact Mater 2024; 42:85-111. [PMID: 39280582 PMCID: PMC11399810 DOI: 10.1016/j.bioactmat.2024.08.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 08/18/2024] [Accepted: 08/19/2024] [Indexed: 09/18/2024] Open
Abstract
Hemophilic articular cartilage damage presents a significant challenge for surgeons, characterized by recurrent intraarticular bleeding, a severe inflammatory microenvironment, and limited self-repair capability of cartilage tissue. Currently, there is a lack of tissue engineering-based integrated therapies that address both early hemostasis, anti-inflammation, and long-lasting chondrogenesis for hemophilic articular cartilage defects. Herein, we developed an adhesive hydrogel using oxidized chondroitin sulfate and gelatin, loaded with exosomes derived from bone marrow stem cells (BMSCs) (Hydrogel-Exos). This hydrogel demonstrated favorable injectability, self-healing, biocompatibility, biodegradability, swelling, frictional and mechanical properties, providing a comprehensive approach to treating hemophilic articular cartilage defects. The adhesive hydrogel, featuring dynamic Schiff base bonds and hydrogen bonds, exhibited excellent wet tissue adhesiveness and hemostatic properties. In a pig model, the hydrogel could be smoothly injected into the knee joint cartilage defect site and gelled in situ under fluid-irrigated arthroscopic conditions. Our in vitro and in vivo experiments confirmed that the sustained release of exosomes yielded anti-inflammatory effects by modulating macrophage M2 polarization through the NF-κB pathway. This immunoregulatory effect, coupled with the extracellular matrix components provided by the adhesive hydrogel, enhanced chondrogenesis, promoted the cartilage repair and joint function restoration after hemophilic articular cartilage defects. In conclusion, our results highlight the significant application potential of Hydrogel-Exos for early hemostasis, immunoregulation, and long-term chondrogenesis in hemophilic patients with cartilage injuries. This innovative approach is well-suited for application during arthroscopic procedures, offering a promising solution for addressing the complex challenges associated with hemophilic articular cartilage damage.
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Affiliation(s)
- Qinfeng Yang
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
- Division of Orthopaedic Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Guihua Liu
- Institute of Orthopaedics, Huizhou Central People's Hospital, Huizhou, Guangdong, 516008, China
| | - Guanghao Chen
- Department of Orthopaedics, The Second Hospital of Jiaxing, The Second Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang, 314000, China
| | - Guo Chen
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Keyu Chen
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Lei Fan
- Division of Orthopaedic Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Yuesheng Tu
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Jialan Chen
- Division of Orthopaedic Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Zhanjun Shi
- Division of Orthopaedic Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Chuan Chen
- Department of Obstetrics and Gynecology, Core Facility Center, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Shubo Liu
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Geyang Deng
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Xiaoqian Deng
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, Guangdong, 510060, China
| | - Chunhan Sun
- Institute of Orthopaedics, Huizhou Central People's Hospital, Huizhou, Guangdong, 516008, China
| | - Xiaoyang Li
- Department of Vascular Surgery, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, Zhejiang, 324000, China
| | - Shuofei Yang
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200127, China
| | - Shaowei Zheng
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, China
- State Key Laboratory of Quality Research in Chinese Medicines, Laboratory of Drug Discovery from Natural Resources and Industrialization, School of Pharmacy, Macau University of Science and Technology, Macau, 999078, China
| | - Bin Chen
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
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76
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Burke Ó, Zeden MS, O'Gara JP. The pathogenicity and virulence of the opportunistic pathogen Staphylococcus epidermidis. Virulence 2024; 15:2359483. [PMID: 38868991 DOI: 10.1080/21505594.2024.2359483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 05/19/2024] [Indexed: 06/14/2024] Open
Abstract
The pervasive presence of Staphylococcus epidermidis and other coagulase-negative staphylococci on the skin and mucous membranes has long underpinned a casual disregard for the infection risk that these organisms pose to vulnerable patients in healthcare settings. Prior to the recognition of biofilm as an important virulence determinant in S. epidermidis, isolation of this microorganism in diagnostic specimens was often overlooked as clinically insignificant with potential delays in diagnosis and onset of appropriate treatment, contributing to the establishment of chronic infection and increased morbidity or mortality. While impressive progress has been made in our understanding of biofilm mechanisms in this important opportunistic pathogen, research into other virulence determinants has lagged S. aureus. In this review, the broader virulence potential of S. epidermidis including biofilm, toxins, proteases, immune evasion strategies and antibiotic resistance mechanisms is surveyed, together with current and future approaches for improved therapeutic interventions.
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Affiliation(s)
- Órla Burke
- Microbiology, School of Biological and Chemical Sciences, University of Galway, Galway, Ireland
| | | | - James P O'Gara
- Microbiology, School of Biological and Chemical Sciences, University of Galway, Galway, Ireland
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77
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Pan X, Zong Q, Liu C, Wu H, Fu B, Wang Y, Sun W, Zhai Y. Konjac glucomannan exerts regulatory effects on macrophages and its applications in biomedical engineering. Carbohydr Polym 2024; 345:122571. [PMID: 39227106 DOI: 10.1016/j.carbpol.2024.122571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Revised: 07/22/2024] [Accepted: 07/31/2024] [Indexed: 09/05/2024]
Abstract
Konjac glucomannan (KGM) molecular chains contain a small amount of acetyl groups and a large number of hydroxyl groups, thereby exhibiting exceptional water retention and gel-forming properties. To meet diverse requirements, KGM undergoes modification processes such as oxidation, acetylation, grafting, and cationization, which reduce its viscosity, enhance its mechanical strength, and improve its water solubility. Researchers have found that KGM and its derivatives can regulate the polarization of macrophages, inducing their transformation into classically activated M1-type macrophages or alternatively activated M2-type macrophages, and even facilitating the interconversion between M1 and M2 phenotypes. Concurrently, the modulation of macrophage polarization states holds significant importance for chronic wound healing, inflammatory bowel disease (IBD), antitumor therapy, tissue engineering scaffolds, oral vaccines, pulmonary delivery, and probiotics. Therefore, KGM has the advantages of both immunomodulatory effects (biological activity) and gel-forming properties (physicochemical properties), giving it significant advantages in a variety of biomedical engineering applications.
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Affiliation(s)
- Xi Pan
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Qida Zong
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Chun Liu
- Hainan Institute for Drug Control, Haikou 570311, China
| | - Huiying Wu
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Bo Fu
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Ye Wang
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Wei Sun
- Department of Biomedical Engineering, School of Pharmaceutical University, Shenyang 110016, China.
| | - Yinglei Zhai
- Department of Biomedical Engineering, School of Pharmaceutical University, Shenyang 110016, China.
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78
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Li G, Gao F, Yang D, Lin L, Yu W, Tang J, Yang R, Jin M, Gu Y, Wang P, Lu E. ECM-mimicking composite hydrogel for accelerated vascularized bone regeneration. Bioact Mater 2024; 42:241-256. [PMID: 39285909 PMCID: PMC11404060 DOI: 10.1016/j.bioactmat.2024.08.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 08/07/2024] [Accepted: 08/27/2024] [Indexed: 09/19/2024] Open
Abstract
Bioactive hydrogel materials have great potential for applications in bone tissue engineering. However, fabrication of functional hydrogels that mimic the natural bone extracellular matrix (ECM) remains a challenge, because they need to provide mechanical support and embody physiological cues for angiogenesis and osteogenesis. Inspired by the features of ECM, we constructed a dual-component composite hydrogel comprising interpenetrating polymer networks of gelatin methacryloyl (GelMA) and deoxyribonucleic acid (DNA). Within the composite hydrogel, the GelMA network serves as the backbone for mechanical and biological stability, whereas the DNA network realizes dynamic capabilities (e.g., stress relaxation), thereby promoting cell proliferation and osteogenic differentiation. Furthermore, functional aptamers (Apt19S and AptV) are readily attached to the DNA network to recruit bone marrow mesenchymal stem cells (BMSCs) and achieve sustained release of loaded vascular endothelial growth factor towards angiogenesis. Our results showed that the composite hydrogel could facilitate the adhesion of BMSCs, promote osteogenic differentiation by activating focal adhesion kinase (FAK)/phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt)/β-Catenin signaling pathway, and eventually enhance vascularized bone regeneration. This study shows that the multifunctional composite hydrogel of GelMA and DNA can successfully simulate the biological functions of natural bone ECM and has great potential for repairing bone defects.
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Affiliation(s)
- Guanglong Li
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China
| | - Fei Gao
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China
| | - Donglei Yang
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China
| | - Lu Lin
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China
| | - Weijun Yu
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China
| | - Jiaqi Tang
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China
| | - Ruhan Yang
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China
| | - Min Jin
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China
| | - Yuting Gu
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China
| | - Pengfei Wang
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China
| | - Eryi Lu
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China
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79
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Hekmat A, Kostova I, Saboury AA. Application of metallic nanoparticles-amyloid protein supramolecular materials in tissue engineering and drug delivery: Recent progress and perspectives. Colloids Surf B Biointerfaces 2024; 244:114185. [PMID: 39226848 DOI: 10.1016/j.colsurfb.2024.114185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 08/25/2024] [Accepted: 08/27/2024] [Indexed: 09/05/2024]
Abstract
Supramolecular medicine refers to the formulation of therapeutic and diagnostic agents through supramolecular techniques, amid treating, diagnosing, and preventing disease. Recently, there has been growing interest in developing metal nanoparticles (MNPs)-amyloid hybrid materials, which have the potential to revolutionize medical applications. Furthermore, the development of MNPs-amyloid hydrogel/scaffold supramolecules represents a promising new direction in amyloid nanotechnology, with potential applications in tissue engineering and biomedicine. This review first provides a brief introduction to the formation process of protein amyloid aggregates and their unique nanostructures. Subsequently, we focused on recent investigations into the use of MNPs-amyloid hybrid materials in tissue engineering and biomedicine. We anticipate that MNPs-amyloid supramolecular materials will pave the way for new functional materials in medical science, particularly in the field of tissue engineering.
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Affiliation(s)
- Azadeh Hekmat
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | - Irena Kostova
- Faculty of Pharmacy, Medical University Sofia, Bulgaria
| | - Ali Akbar Saboury
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran.
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80
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Cao X, Wu X, Zhang Y, Qian X, Sun W, Zhao Y. Emerging biomedical technologies for scarless wound healing. Bioact Mater 2024; 42:449-477. [PMID: 39308549 PMCID: PMC11415838 DOI: 10.1016/j.bioactmat.2024.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Revised: 08/16/2024] [Accepted: 09/01/2024] [Indexed: 09/25/2024] Open
Abstract
Complete wound healing without scar formation has attracted increasing attention, prompting the development of various strategies to address this challenge. In clinical settings, there is a growing preference for emerging biomedical technologies that effectively manage fibrosis following skin injury, as they provide high efficacy, cost-effectiveness, and minimal side effects compared to invasive and costly surgical techniques. This review gives an overview of the latest developments in advanced biomedical technologies for scarless wound management. We first introduce the wound healing process and key mechanisms involved in scar formation. Subsequently, we explore common strategies for wound treatment, including their fabrication methods, superior performance and the latest research developments in this field. We then shift our focus to emerging biomedical technologies for scarless wound healing, detailing the mechanism of action, unique properties, and advanced practical applications of various biomedical technology-based therapies, such as cell therapy, drug therapy, biomaterial therapy, and synergistic therapy. Finally, we critically assess the shortcomings and potential applications of these biomedical technologies and therapeutic methods in the realm of scar treatment.
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Affiliation(s)
- Xinyue Cao
- Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Xiangyi Wu
- Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Yuanyuan Zhang
- Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Xiaoyun Qian
- Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Weijian Sun
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325035, China
| | - Yuanjin Zhao
- Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
- Shenzhen Research Institute, Southeast University, Shenzhen, 518071, China
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81
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Starlin Chellathurai M, Mahmood S, Mohamed Sofian Z, Wan Hee C, Sundarapandian R, Ahamed HN, Kandasamy CS, Hilles AR, Hashim NM, Janakiraman AK. Biodegradable polymeric insulin microneedles - a design and materials perspective review. Drug Deliv 2024; 31:2296350. [PMID: 38147499 PMCID: PMC10763835 DOI: 10.1080/10717544.2023.2296350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 12/11/2023] [Indexed: 12/28/2023] Open
Abstract
Microneedle (MN) delivery devices are more accepted by people than regular traditional needle injections (e.g. vaccination) due to their simplicity and adaptability. Thus, patients of chronic diseases like diabetes look for alternative pain-free treatment regimens circumventing regular subcutaneous injections. Insulin microneedles (INS-MNs) are a thoughtfully researched topic (1) to overcome needle phobia in patients, (2) for controlled delivery of the peptide, (3) decreasing the frequency of drug administration, (4) to ease the drug administration procedure, and (5) thus increasing patient adherence to the treatment dosage regimes. MNs physically disrupt the hard outer skin layer to create minuscule pores for insulin (INS) to pass through the dermal capillaries into the systemic circulation. Biodegradable polymeric MNs are of greater significance for INS and vaccine delivery than silicon, metal, glass, or non-biodegradable polymeric MNs due to their ease of fabrication, mass production, cost-effectiveness, and bioerodability. In recent years, INS-MNs have been researched to deliver INS through the transdermal implants, buccal mucosa, stomach wall, intestinal mucosal layers, and colonic mucosa apart from the usual transdermal delivery. This review focuses on the design characteristics and the applications of biodegradable/dissolvable polymeric INS-MNs in transdermal, intra-oral, gastrointestinal (GI), and implantable delivery. The prospective approaches to formulate safe, controlled-release INS-MNs were highlighted. Biodegradable/dissolvable polymers, their significance, their impact on MN morphology, and INS release characteristics were outlined. The developments in biodegradable polymeric INS-MN technology were briefly discussed. Bio-erodible polymer selection, MN fabrication and evaluation factors, and other design aspects were elaborated.
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Affiliation(s)
| | - Syed Mahmood
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur, Malaysia
- Centre for Natural Products Research and Drug Discovery (CENAR), Universiti Malaya, Kuala Lumpur, Malaysia
| | - Zarif Mohamed Sofian
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Cheng Wan Hee
- Faculty of Health and Life Sciences, INTI International University, Nilai, Malaysia
| | | | - Haja Nazeer Ahamed
- Crescent School of Pharmacy, B.S. Abdur Rahman Crescent Institute of Science and Technology, Vandalur, Chennai, India
| | - C. S. Kandasamy
- Department of Pharmacognosy, Karpagam College of Pharmacy, Coimbatore, India
| | - Ayah R. Hilles
- INHART, International Islamic University, Kuala Lumpur, Malaysia
| | - Najihah Mohd Hashim
- Centre for Natural Products Research and Drug Discovery (CENAR), Universiti Malaya, Kuala Lumpur, Malaysia
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Ashok Kumar Janakiraman
- Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, UCSI University, Kuala Lumpur, Malaysia
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Ren D, Xiong S, Ren Y, Yang X, Zhao X, Jin J, Xu M, Liang T, Guo L, Weng L. Advances in therapeutic cancer vaccines: Harnessing immune adjuvants for enhanced efficacy and future perspectives. Comput Struct Biotechnol J 2024; 23:1833-1843. [PMID: 38707540 PMCID: PMC11066472 DOI: 10.1016/j.csbj.2024.04.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 04/19/2024] [Accepted: 04/20/2024] [Indexed: 05/07/2024] Open
Abstract
Preventive cancer vaccines are highly effective in preventing viral infection-induced cancer, but advances in therapeutic cancer vaccines with a focus on eliminating cancer cells through immunotherapy are limited. To develop therapeutic cancer vaccines, the integration of optimal adjuvants is a potential strategy to enhance or complement existing therapeutic approaches. However, conventional adjuvants do not satisfy the criteria of clinical trials for therapeutic cancer vaccines. To improve the effects of adjuvants in therapeutic cancer vaccines, effective vaccination strategies must be formulated and novel adjuvants must be identified. This review offers an overview of the current advancements in therapeutic cancer vaccines and highlights in situ vaccination approaches that can be synergistically combined with other immunotherapies by harnessing the adjuvant effects. Additionally, the refinement of adjuvant systems using cutting-edge technologies and the elucidation of molecular mechanisms underlying immunogenic cell death to facilitate the development of innovative adjuvants have been discussed.
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Affiliation(s)
- Dekang Ren
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Shizheng Xiong
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Yujie Ren
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Xueni Yang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Xinmiao Zhao
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Jiaming Jin
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Miaomiao Xu
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Tingming Liang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, School of Life Science, Nanjing Normal University, Nanjing 210023, China
| | - Li Guo
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Lixing Weng
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, China
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83
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Liu KC, Chen YC, Hsieh CF, Wang MH, Zhong MX, Cheng NC. Scaffold-free 3D culture systems for stem cell-based tissue regeneration. APL Bioeng 2024; 8:041501. [PMID: 39364211 PMCID: PMC11446583 DOI: 10.1063/5.0225807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Accepted: 09/12/2024] [Indexed: 10/05/2024] Open
Abstract
Recent advances in scaffold-free three-dimensional (3D) culture methods have significantly enhanced the potential of stem cell-based therapies in regenerative medicine. This cutting-edge technology circumvents the use of exogenous biomaterial and prevents its associated complications. The 3D culture system preserves crucial intercellular interactions and extracellular matrix support, closely mimicking natural biological niches. Therefore, stem cells cultured in 3D formats exhibit distinct characteristics, showcasing their capabilities in promoting angiogenesis and immunomodulation. This review aims to elucidate foundational technologies and recent breakthroughs in 3D scaffold-free stem cell engineering, offering comprehensive guidance for researchers to advance this technology across various clinical applications. We first introduce the various sources of stem cells and provide a comparative analysis of two-dimensional (2D) and 3D culture systems. Given the advantages of 3D culture systems, we delve into the specific fabrication and harvesting techniques for cell sheets and spheroids. Furthermore, we explore their applications in pre-clinical studies, particularly in large animal models and clinical trials. We also discuss multidisciplinary strategies to overcome existing limitations such as insufficient efficacy, hostile microenvironments, and the need for scalability and standardization of stem cell-based products.
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Affiliation(s)
- Ke-Chun Liu
- Department of Surgery, National Taiwan University Hospital and College of Medicine, Taipei 100, Taiwan
| | - Yueh-Chen Chen
- Department of Surgery, National Taiwan University Hospital and College of Medicine, Taipei 100, Taiwan
| | - Chi-Fen Hsieh
- Department of Surgery, National Taiwan University Hospital and College of Medicine, Taipei 100, Taiwan
| | - Mu-Hui Wang
- Department of Surgery, National Taiwan University Hospital and College of Medicine, Taipei 100, Taiwan
| | - Meng-Xun Zhong
- Department of Surgery, National Taiwan University Hospital and College of Medicine, Taipei 100, Taiwan
| | - Nai-Chen Cheng
- Author to whom correspondence should be addressed:. Tel.: 886 2 23123456 ext 265919. Fax: 886 2 23934358
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Dulong V, Rihouey C, Gaignard C, Bridiau N, Gourvil P, Laroche C, Pierre G, Varacavoudin T, Probert I, Maugard T, Michaud P, Picton L, Le Cerf D. Exopolysaccharide from marine microalgae belonging to the Glossomastix genus: fragile gel behavior and suspension stability. Bioengineered 2024; 15:2296257. [PMID: 38153265 PMCID: PMC10761178 DOI: 10.1080/21655979.2023.2296257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 12/13/2023] [Indexed: 12/29/2023] Open
Abstract
With the aim to find new polysaccharides of rheological interest with innovated properties, rhamnofucans produced as exopolysaccharides (EPS) in a photobioreactor (PBR) and an airlift bioreactor (ABR) by the marine microalgae Glossomastix sp. RCC3707 and RCC3688 were fully studied. Chemical characterizations have been conducted (UHPLC - MS HR). Analyses by size-exclusion chromatography (SEC) coupled online with a multiangle light scattering detector (MALS) and a differential refractive index detector showed the presence of large structures with molar masses higher than 106 g.mol-1. The rheological studies of these EPS solutions, conducted at different concentrations and salinities, have evidenced interesting and rare behavior characteristic of weak and fragile hydrogels i.e. gel behavior with very low elastic moduli (between 10-2 and 10 Pa) and yield stresses (between 10-2 and 2 Pa) according to the EPS source, concentration, and salinity. These results were confirmed by diffusing wave spectroscopy. Finally, as one of potential application, solutions of EPS from Glossomastix sp. have evidenced very good properties as anti-settling stabilizers, using microcrystalline cellulose particles as model, studied by multiple light scattering (MLS) with utilization in cosmetic or food industry. Compared to alginate solution with same viscosity for which sedimentation is observed over few hours, microalgae EPS leads to a stable suspension over few days.
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Affiliation(s)
- Virginie Dulong
- Université de Rouen Normandie, INSA Rouen Normandie, CNRS, PBS Laboratory, Rouen, France
| | - Christophe Rihouey
- Université de Rouen Normandie, INSA Rouen Normandie, CNRS, PBS Laboratory, Rouen, France
| | - Clément Gaignard
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, Clermont-Ferrand, France
| | - Nicolas Bridiau
- La Rochelle Université, CNRS, LIENSs Laboratory, La Rochelle, France
| | - Priscilla Gourvil
- Station Biologique de Roscoff (SBR), Sorbonne Université, CNRS, Roscoff, France
| | - Céline Laroche
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, Clermont-Ferrand, France
| | - Guillaume Pierre
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, Clermont-Ferrand, France
| | - Tony Varacavoudin
- Université de Rouen Normandie, INSA Rouen Normandie, CNRS, PBS Laboratory, Rouen, France
| | - Ian Probert
- Station Biologique de Roscoff (SBR), Sorbonne Université, CNRS, Roscoff, France
| | - Thierry Maugard
- La Rochelle Université, CNRS, LIENSs Laboratory, La Rochelle, France
| | - Philippe Michaud
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, Clermont-Ferrand, France
| | - Luc Picton
- Université de Rouen Normandie, INSA Rouen Normandie, CNRS, PBS Laboratory, Rouen, France
| | - Didier Le Cerf
- Université de Rouen Normandie, INSA Rouen Normandie, CNRS, PBS Laboratory, Rouen, France
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85
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Simelane NWN, Abrahamse H. Actively targeted photodynamic therapy in multicellular colorectal cancer spheroids via functionalised gold nanoparticles. ARTIFICIAL CELLS, NANOMEDICINE, AND BIOTECHNOLOGY 2024; 52:309-320. [PMID: 38781462 DOI: 10.1080/21691401.2024.2357693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 05/13/2024] [Indexed: 05/25/2024]
Abstract
Photodynamic therapy (PDT) holds great potential to overcome limitations associated with common colorectal cancer (CRC) treatment approaches. Targeted photosensitiser (PS) delivery systems using nanoparticles (NPs) with targeting moieties are continually being designed, which are aimed at enhancing PS efficacy in CRC PDT. However, the optimisation of targeted PS delivery systems in most, in vitro PDT studies has been conducted on two dimensional (2D) monolayers cell cultures. In our present study, we developed a nano PS delivery system for in vitro cultured human colorectal three-dimensional multicellular spheroids (3D MCTS). PEGylated gold nanoparticles (PEG-AuNPs) were prepared and attached to ZnPcS4PS and further functionalised with specific CRC targeting anti-Guanylate Cyclase monoclonal antibodies(mAb). The ZnPcS4-AuNP-Anti-GCC Ab (BNC) nanoconjugates were successfully synthesised and their photodynamic effect investigated following exposure to laser irradiation and demonstrated enhanced anticancer effects in Caco-2 cells cultivated as 3D MCTS spheroids. Our findings suggest that targeted BNC nanoconjugates can improve the efficacy of PDT and highlight the potential of 3D MCTS tumour model for evaluating of targeted PDT.
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Affiliation(s)
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Johannesburg, South Africa
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86
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Hirotani T, Nagase K. Temperature-modulated separation of vascular cells using thermoresponsive-anionic block copolymer-modified glass. Regen Ther 2024; 27:259-267. [PMID: 38601885 PMCID: PMC11004074 DOI: 10.1016/j.reth.2024.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/26/2024] [Accepted: 03/09/2024] [Indexed: 04/12/2024] Open
Abstract
Introduction Vascular tissue engineering is a key technology in the field of regenerative medicine. In tissue engineering, the separation of vascular cells without cell modification is required, as cell modifications affect the intrinsic properties of the cells. In this study, we have developed an effective method for separating vascular cells without cell modification, using a thermoresponsive anionic block copolymer. Methods A thermoresponsive anionic block copolymer, poly(acrylic acid)-b-poly(N-isopropylacryl-amide) (PAAc-b-PNIPAAm), with various PNIPAAm segment lengths, was prepared in two steps: atom transfer radical polymerization and subsequent deprotection. Normal human umbilical vein endothelial cells (HUVECs), normal human dermal fibroblasts, and human aortic smooth muscle cells (SMCs) were seeded onto the prepared thermoresponsive anionic block copolymer brush-modified glass. The adhesion behavior of cells on the copolymer brush was observed at 37 °C and 20 °C. Results A thermoresponsive anionic block copolymer, poly(acrylic acid)-b-poly(N-isopropylacrylamide) (PAAc-b-PNIPAAm), with various PNIPAAm segment lengths was prepared. The prepared copolymer-modified glass exhibited anionic properties attributed to the bottom PAAc segment of the copolymer brush. On the PAAc-b-PNIPAAm, which had a moderate PNIPAAm length, a high adhesion ratio of HUVECs and low adhesion ratio of SMCs were observed at 37 °C. By reducing temperature from 37 °C to 20 °C, the adhered HUVECs were detached, whereas the SMCs maintained adhesion, leading to the recovery of purified HUVECs by changing the temperature. Conclusions The prepared thermoresponsive anionic copolymer-modified glass could be used to separate HUVECs and SMCs by changing the temperature without modifying the cell surface. Therefore, the developed cell separation method will be useful for vascular tissue engineering.
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Affiliation(s)
- Tadashi Hirotani
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Kenichi Nagase
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
- Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
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87
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Zhang Z, Sun L, Chen F, Liu X, Huo X, Pan X, Feng C. Host-guest strategy improves rheological properties, conformational stability and oil displacement efficiency of xanthan gum. Carbohydr Polym 2024; 345:122598. [PMID: 39227088 DOI: 10.1016/j.carbpol.2024.122598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2024] [Revised: 08/04/2024] [Accepted: 08/07/2024] [Indexed: 09/05/2024]
Abstract
The low cost and environmental advantages of Xanthan gum make its production and application scale exceed that of other polysaccharides. However, the temperature resistance of Xanthan gum limits its application. In this study, polysaccharide supramolecular Xanthan gum network (XG-β-CD/AD) based on β-cyclodextrin and adamantane was prepared for enhanced oil recovery. The structure of Xanthan gum was characterized by Fourier infrared spectroscopy, nuclear magnetic resonance spectroscopy and thermogravimetric analysis. The rheological properties of the modified polysaccharide network in aqueous solution were systematically studied. The results showed that physical cross-linking of host-guest interacion enhanced the thickening ability of the polymer. Shear rheology, extensional rheology and dynamic modulus test proved that XG-β-CD/AD had excellent rheological properties. The micromorphology, dynamic light scattering and circular dichroism clarified the molecular conformation, the host-guest interaction can improve conformational transition temperature (Tm) and inorganic salt tolerance of Xanthan gum. Under harsh environment (90 °C, 30000 mg/L brine), the oil recovery of XG-β-CD/AD is 6 %-11 % higher than that of XG at the same conditions, showing a better ability to improve the recovery rate. This study provides a research idea for the selection, development and application of biomacromolecular materials.
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Affiliation(s)
- Zhirong Zhang
- Chinese Academy of Sciences University, Beijing 101408, China; State Key Laboratory of Enhanced Oil Recovery, China Petroleum Exploration and Development Research Institute, Beijing 100083, China
| | - Linghui Sun
- Chinese Academy of Sciences University, Beijing 101408, China; State Key Laboratory of Enhanced Oil Recovery, China Petroleum Exploration and Development Research Institute, Beijing 100083, China.
| | - Feiyu Chen
- Chinese Academy of Sciences University, Beijing 101408, China; State Key Laboratory of Enhanced Oil Recovery, China Petroleum Exploration and Development Research Institute, Beijing 100083, China
| | - Xiangui Liu
- Chinese Academy of Sciences University, Beijing 101408, China; State Key Laboratory of Enhanced Oil Recovery, China Petroleum Exploration and Development Research Institute, Beijing 100083, China
| | - Xu Huo
- Chinese Academy of Sciences University, Beijing 101408, China; State Key Laboratory of Enhanced Oil Recovery, China Petroleum Exploration and Development Research Institute, Beijing 100083, China
| | - Xiuxiu Pan
- Chinese Academy of Sciences University, Beijing 101408, China; State Key Laboratory of Enhanced Oil Recovery, China Petroleum Exploration and Development Research Institute, Beijing 100083, China
| | - Chun Feng
- State Key Laboratory of Enhanced Oil Recovery, China Petroleum Exploration and Development Research Institute, Beijing 100083, China
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Wang X, Ren M, Wang N, Ling J, He Y, Huang S, Ouyang XK. Zeolitic imidazolate framework-8@polydopamine decorated carboxylated chitosan hydrogel with photocatalytic and photothermal antibacterial activity for infected wound healing. J Colloid Interface Sci 2024; 675:1040-1051. [PMID: 39008922 DOI: 10.1016/j.jcis.2024.07.087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 07/03/2024] [Accepted: 07/10/2024] [Indexed: 07/17/2024]
Abstract
Open wounds are susceptible to bacterial infections, and antibiotics are commonly used to treat these infections. However, widespread use of antibiotics will easily induce bacterial resistance. Green antibacterial agents serve as excellent alternative for antibiotics in infection therapy. In this work, polydopamine (PDA) was used to modify the surface of ZIF-8, which not only enhances the water stability of Zeolitic imidazolate framework-8(ZIF-8) but also improves its photocatalytic and photothermal capabilities. ZIF-8@PDA was incorporated into carboxylated chitosan (CCS) films as an antibacterial agent, the resulting ZIF-8@PDA-CCS films exhibit excellent ionic/photocatalytic/photothermal antibacterial performance. The film exhibited an impressive 99% in vitro bacterial inhibition rate. After treatment with ZIF-8@PDA-CCS, the bacteria in infected wounds can be completely suppressed. These findings suggest that ZIF-8@PDA-CCS could serve as a potentional antibacterial dressing.
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Affiliation(s)
- Xinhao Wang
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, PR China
| | - Miaoyan Ren
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, PR China
| | - Nan Wang
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, PR China.
| | - Junhong Ling
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, PR China
| | - Yuhuan He
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, PR China
| | - Shuyi Huang
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, PR China
| | - Xiao-Kun Ouyang
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, PR China.
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89
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Cai WQ, Zou BW, Na XK, Ren C, Zheng XH, Xu XB, Du M, Zhu B, Wu C. Structure of yuba films at the air/liquid interface as effected by the interfacial adsorption behavior of protein aggregates. Food Chem 2024; 460:140818. [PMID: 39137576 DOI: 10.1016/j.foodchem.2024.140818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 07/27/2024] [Accepted: 08/08/2024] [Indexed: 08/15/2024]
Abstract
The effects of adsorption behavior and assembly mechanism of proteins and lipids at the interface on the formation of yuba films were investigated. The thickness of yuba films increased rapidly from nano to micro scale within minutes according to the scanning electron microscopy (SEM) images. The confocal laser scanning microscope (CLSM), SEM images, and sodium dodecyl sulfate-polyacrylamide gel electrophoresis revealed that the formation of protein aggregates (40-100 nm) was an essential requirement for the development of yuba. Meanwhile, a relatively loose spatial structure was formed by protein aggregates under the influence of water vapor. This structure served as the foundation for incorporating lipids. Interfacial adsorption kinetics indicated that increasing the concentration (from 3 to 9 mg/mL) of protein aggregates enhanced the rearrangement rate. This finding demonstrated that the variations of interfacial protein aggregate concentration were a crucial factor leading to the non-linear growth of film thickness.
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Affiliation(s)
- Wen-Qiang Cai
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; National Engineering Research Center of Seafood, Dalian 116034, China; State Key Laboratory of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, China; Liaoning Key Laboratory of Food Nutrition and Health, Dalian Polytechnic University, Dalian 116034, China
| | - Bo-Wen Zou
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; National Engineering Research Center of Seafood, Dalian 116034, China; State Key Laboratory of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, China; Liaoning Key Laboratory of Food Nutrition and Health, Dalian Polytechnic University, Dalian 116034, China
| | - Xiao-Kang Na
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; National Engineering Research Center of Seafood, Dalian 116034, China; State Key Laboratory of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, China; Liaoning Key Laboratory of Food Nutrition and Health, Dalian Polytechnic University, Dalian 116034, China
| | - Chao Ren
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; National Engineering Research Center of Seafood, Dalian 116034, China; State Key Laboratory of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, China; Liaoning Key Laboratory of Food Nutrition and Health, Dalian Polytechnic University, Dalian 116034, China
| | - Xiao-Han Zheng
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; National Engineering Research Center of Seafood, Dalian 116034, China; State Key Laboratory of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, China; Liaoning Key Laboratory of Food Nutrition and Health, Dalian Polytechnic University, Dalian 116034, China
| | - Xian-Bing Xu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; National Engineering Research Center of Seafood, Dalian 116034, China; State Key Laboratory of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, China; Liaoning Key Laboratory of Food Nutrition and Health, Dalian Polytechnic University, Dalian 116034, China
| | - Ming Du
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; National Engineering Research Center of Seafood, Dalian 116034, China; State Key Laboratory of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, China; Liaoning Key Laboratory of Food Nutrition and Health, Dalian Polytechnic University, Dalian 116034, China
| | - Beiwei Zhu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; National Engineering Research Center of Seafood, Dalian 116034, China; State Key Laboratory of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, China; Liaoning Key Laboratory of Food Nutrition and Health, Dalian Polytechnic University, Dalian 116034, China
| | - Chao Wu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; National Engineering Research Center of Seafood, Dalian 116034, China; State Key Laboratory of Marine Food Processing & Safety Control, Dalian Polytechnic University, Dalian 116034, China; Liaoning Key Laboratory of Food Nutrition and Health, Dalian Polytechnic University, Dalian 116034, China.
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90
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Zeng Z, Zhang Z, Yin B, Zhang M. Simultaneously performing Taylor dispersion analysis with fluorimetry, photometry, and contactless conductometry at the same detection window. Talanta 2024; 280:126677. [PMID: 39142127 DOI: 10.1016/j.talanta.2024.126677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 07/30/2024] [Accepted: 08/05/2024] [Indexed: 08/16/2024]
Abstract
Taylor dispersion analysis (TDA) is a rapid and precise method for determining the hydrodynamic radius (RH) of various substances. We present a versatile TDA system with a flow-through sample injection device, two compact 3-in-1 detectors, and a high-voltage power supply. The 3D-printed detectors combine fluorimetry (FD), photometry (AD@255 nm), and contactless conductometry (C4D) in a single head, enabling simultaneous detection at one capillary window. Using bovine serum albumin (BSA) as a model analyte, we compare TDA with different detection methods. BSA labeled with fluorescein isothiocyanate (FITC) is analyzed in both pulse mode and capillary electrophoresis (CE) TDA. FD and AD detection yield similar RH values, except when FITC binds with small ions in the buffer. In phosphate buffer, C4D underestimates RH values by approximately 18 % due to BSA self-association. In Tris-based buffers, C4D values are 87%-96 % of AD values in pulse mode. With CE-TDA using Tris-CHES buffer, no statistical difference is found across all detections. The system is also applied to CE-TDA of various compounds, particularly charged saccharides. CE-TDA improves the accuracy of TDA results from C4D. We demonstrate the resolution of mixed C4D-TDA signals with assistance from FD and AD signals, successfully resolving gluconate peaks fully covered by another compound. The versatile system with 3-in-1 detection offers a powerful tool for TDA of mixtures and enhances sample throughput.
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Affiliation(s)
- Zihan Zeng
- School of Life and Environmental Sciences, Guangxi Key Laboratory of Automatic Detecting Technology and Instruments, Guilin University of Electronic Technology, Guilin, Guangxi, 541004, China
| | - Zheng Zhang
- School of Life and Environmental Sciences, Guangxi Key Laboratory of Automatic Detecting Technology and Instruments, Guilin University of Electronic Technology, Guilin, Guangxi, 541004, China
| | - Bangjie Yin
- School of Life and Environmental Sciences, Guangxi Key Laboratory of Automatic Detecting Technology and Instruments, Guilin University of Electronic Technology, Guilin, Guangxi, 541004, China
| | - Min Zhang
- School of Life and Environmental Sciences, Guangxi Key Laboratory of Automatic Detecting Technology and Instruments, Guilin University of Electronic Technology, Guilin, Guangxi, 541004, China.
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91
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Chen S, Xie Y, Ma K, Wei Z, Ran X, Fu X, Zhang C, Zhao C. Electrospun nanofibrous membranes meet antibacterial nanomaterials: From preparation strategies to biomedical applications. Bioact Mater 2024; 42:478-518. [PMID: 39308550 PMCID: PMC11415839 DOI: 10.1016/j.bioactmat.2024.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 08/14/2024] [Accepted: 09/01/2024] [Indexed: 09/25/2024] Open
Abstract
Electrospun nanofibrous membranes (eNFMs) have been extensively developed for bio-applications due to their structural and compositional similarity to the natural extracellular matrix. However, the emergence of antibiotic resistance in bacterial infections significantly impedes the further development and applications of eNFMs. The development of antibacterial nanomaterials substantially nourishes the engineering design of antibacterial eNFMs for combating bacterial infections without relying on antibiotics. Herein, a comprehensive review of diverse fabrication techniques for incorporating antibacterial nanomaterials into eNFMs is presented, encompassing an exhaustive introduction to various nanomaterials and their bactericidal mechanisms. Furthermore, the latest achievements and breakthroughs in the application of these antibacterial eNFMs in tissue regenerative therapy, mainly focusing on skin, bone, periodontal and tendon tissues regeneration and repair, are systematically summarized and discussed. In particular, for the treatment of skin infection wounds, we highlight the antibiotic-free antibacterial therapy strategies of antibacterial eNFMs, including (i) single model therapies such as metal ion therapy, chemodynamic therapy, photothermal therapy, and photodynamic therapy; and (ii) multi-model therapies involving arbitrary combinations of these single models. Additionally, the limitations, challenges and future opportunities of antibacterial eNFMs in biomedical applications are also discussed. We anticipate that this comprehensive review will provide novel insights for the design and utilization of antibacterial eNFMs in future research.
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Affiliation(s)
- Shengqiu Chen
- Innovation Research Center for Diabetic Foot, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yi Xie
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials and Engineering, Sichuan University, Chengdu, 610065, China
| | - Kui Ma
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department, PLA General Hospital and PLA Medical College, Beijing, 100853, China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Beijing, 100048, China
- Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, China
| | - Zhiwei Wei
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials and Engineering, Sichuan University, Chengdu, 610065, China
| | - Xingwu Ran
- Innovation Research Center for Diabetic Foot, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Endocrinology and Metabolism, Diabetic Foot Care Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiaobing Fu
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department, PLA General Hospital and PLA Medical College, Beijing, 100853, China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Beijing, 100048, China
- Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, China
| | - Cuiping Zhang
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department, PLA General Hospital and PLA Medical College, Beijing, 100853, China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Beijing, 100048, China
- Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, China
| | - Changsheng Zhao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials and Engineering, Sichuan University, Chengdu, 610065, China
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92
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Rutigliano M, Liberatore MT, Dilucia F, Di Luccia A, la Gatta B. Study on the induced polymeric protein aggregation and immunoreactivity in biscuits enriched with peanut flour. Food Chem 2024; 460:140568. [PMID: 39053275 DOI: 10.1016/j.foodchem.2024.140568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 07/11/2024] [Accepted: 07/20/2024] [Indexed: 07/27/2024]
Abstract
This work deals with the study on the protein extractability of biscuits incurring different percentages of roasted peanut flour. The presence of two different flours influenced the rate of protein aggregation and protein extractability, according to the percentage of roasted peanut flour added to the formulation and assessing these features by testing the use of two buffers. Results showed that gluten network arrangement of biscuits was influenced by the flours mixture besides the baking, with possible different protein organizations. Protein extractability was affected, underlining a higher content of protein aggregates at high molecular weight especially with the addition of 20% of peanut flour, characterized by hydrophobic and reducible covalent bonds, as suggested by the higher extractability obtained with the buffer with chaotropic and reducing agents. These results suggested a possible induced supramolecular protein organization in these products, which could affect the immunoreactivity of the main allergens occurred in the formulation.
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Affiliation(s)
- Mariacinzia Rutigliano
- Department of Sciences of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, Via Napoli, 25, 71122, Foggia, Italy
| | - Maria Teresa Liberatore
- Department of Sciences of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, Via Napoli, 25, 71122, Foggia, Italy
| | - Flavia Dilucia
- Department of Sciences of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, Via Napoli, 25, 71122, Foggia, Italy
| | - Aldo Di Luccia
- Department of Sciences of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, Via Napoli, 25, 71122, Foggia, Italy
| | - Barbara la Gatta
- Department of Sciences of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, Via Napoli, 25, 71122, Foggia, Italy.
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93
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Bisson G, Melchior S, Comuzzi C, Andreatta F, Rondinella A, Zanocco M, Calligaris S, Marino M. Unrevealing the potentialities in food formulations of a low-branched dextran from Leuconostoc mesenteroides. Food Chem 2024; 460:140718. [PMID: 39106808 DOI: 10.1016/j.foodchem.2024.140718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 07/17/2024] [Accepted: 07/29/2024] [Indexed: 08/09/2024]
Abstract
The search for novel exopolysaccharides (EPS) with targeted functionalities is currently a topic of great interest. This study aimed to investigate the chemical characteristics and technological properties of a novel EPS (named EPS_O) from Leuconostoc mesenteroides. EPS_O was a high-molecular-weight dextran (>6.68 × 105 g/mol) characterized by high water-holding capacity (785 ± 73%) and high water solubility index (about 99%). EPS_O in water (<30 mg/mL) formed viscous solutions, whereas at concentrations >30 mg/mL, it formed weak gels. Notably, lower concentrations (4-5 mg/mL) exhibited antimicrobial activity against various foodborne pathogens, antibiofilm activity against Listeria monocytogenes, and radical-scavenging activity. These properties are significant for maintaining food quality and promoting health. Based on these findings, EPS_O presents itself as a promising food ingredient that could elevate food quality and confer health benefits to consumers.
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Affiliation(s)
- Giulia Bisson
- Department of Agricultural Food Environmental and Animal Science, Via Sondrio 2/A, 33100, University of Udine, Udine, Italy
| | - Sofia Melchior
- Department of Agricultural Food Environmental and Animal Science, Via Sondrio 2/A, 33100, University of Udine, Udine, Italy
| | - Clara Comuzzi
- Department of Agricultural Food Environmental and Animal Science, Via Sondrio 2/A, 33100, University of Udine, Udine, Italy
| | - Francesco Andreatta
- Polytechnic Department of Engineering and Architecture, Via delle Scienze 206, 33100, University of Udine, Udine, Italy
| | - Alfredo Rondinella
- Polytechnic Department of Engineering and Architecture, Via delle Scienze 206, 33100, University of Udine, Udine, Italy
| | - Matteo Zanocco
- Polytechnic Department of Engineering and Architecture, Via delle Scienze 206, 33100, University of Udine, Udine, Italy
| | - Sonia Calligaris
- Department of Agricultural Food Environmental and Animal Science, Via Sondrio 2/A, 33100, University of Udine, Udine, Italy
| | - Marilena Marino
- Department of Agricultural Food Environmental and Animal Science, Via Sondrio 2/A, 33100, University of Udine, Udine, Italy.
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94
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Li T, Zhang Y, Shao J, Hou R, Zhang Z, Ye C, Wang H, Zhu B, Zhang Y. Enhancement of non-covalent interaction between soy protein isolate and quercetin by sodium alginate. Food Chem 2024; 460:140422. [PMID: 39068794 DOI: 10.1016/j.foodchem.2024.140422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 06/16/2024] [Accepted: 07/09/2024] [Indexed: 07/30/2024]
Abstract
Effects of sodium alginate (SA) on the non-covalent interaction between soybean protein isolate (SPI) and quercetin (Que) were investigated by multispectral technology, molecular docking and dynamics simulation technology. Structural alterations of the binary complexes were observed after SA addition, characterized by a red shift of maximum fluorescence emission wavelength. The introduction of 0.1% (w/v) SA led to a reduction of 12.3% in the α-helix and β-sheet structures, accompanied by 12.6% increase in the β-turn and random coil conformations. The binding of SA to SPI provided electrostatic interactions and facilitated the subsequent binding of SPI to Que. Molecular docking confirmed that hydrophobic interactions and electrostatic interactions were also the main driving force. Molecular dynamics simulation emphasized that the ternary complexes with SA exhibited greater stability compared to the binary ones. The foaming and emulsifying properties of SPI-Que complexes were enhanced by 33.76% and 68.28%, respectively, due to the addition of SA.
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Affiliation(s)
- Taoran Li
- College of Public Health and Health Sciences, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Yubo Zhang
- College of Public Health and Health Sciences, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Juanjuan Shao
- Department of Science and Technology, Hebei Agricultural University, Hebei 061100, China
| | - Ruiyang Hou
- College of Public Health and Health Sciences, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Zifan Zhang
- College of Public Health and Health Sciences, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Chengxiang Ye
- College of Public Health and Health Sciences, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Hongwu Wang
- College of Public Health and Health Sciences, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Beibei Zhu
- College of Chinese Medicine Pharmaceutical Engineering, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Yating Zhang
- College of Public Health and Health Sciences, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
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95
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Li R, Feng H, Wang S, Zhuang D, Wen Y, Zhu J. A double-layer film based on the strategy of tannic acid-anthocyanin co-pigmentation and tannic-crosslinked-gelatin/-reduced Ag nanoparticles for beef preservation and monitoring. Food Chem 2024; 460:140642. [PMID: 39111043 DOI: 10.1016/j.foodchem.2024.140642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 07/22/2024] [Accepted: 07/24/2024] [Indexed: 09/06/2024]
Abstract
A double-layer film was developed with tannic acid (TA) co-pigmented purple potato anthocyanin extract (PAE)-agar as the inner layer, and K-carrageenan-oregano essential oil Pickering emulsion (OPE)/silver nanoparticles (TA-AgNPs) as the outer layer. Molecular docking and FT-IR results elucidated that intermolecular hydrogen bond was the main interaction between components in the agar-carrageenan matrix, with TA and PAE contributing to intensified anthocyanin color through π-π stacking. The incorporation of OPE/TA-AgNPs enhanced the film's hydrophobicity (WCA > 100°) and UV-vis barrier (close to 0% at 200-320 nm, effectively impeding UVA, UVB, and UVC) properties and exhibited outstanding antioxidant (DPPH scavenging rate > 88%) and antimicrobial activities. This film showed a significant color change in the pH range of 2-12 (from pink to yellow) and a considerable sensitivity to volatile amines within 2 min. The films effectively alleviated beef spoilage (extending the shelf life of beef for 1d) and reflected the freshness of beef during storage. Additionally, the digital color information of the film was obtained by a smartphone combined with RGB values analysis to quantify the freshness of beef rapidly. Therefore, this study expands the application of food packaging films with freshness preservation and monitoring in the field of animal-derived food.
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Affiliation(s)
- Rui Li
- Laboratory of Agricultural and Food Biophysics, Institute of Biophysics, College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Muscle Biology and Meat Science, National Beef Cattle Improvement Center, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China; Experts Workstation for Functional Beef Research and Development, Shaanxi Nanxiangshenghe Food Technology Company, Zhenba, Shaanxi 723600, China
| | - Haoyu Feng
- Laboratory of Agricultural and Food Biophysics, Institute of Biophysics, College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Shancan Wang
- Laboratory of Agricultural and Food Biophysics, Institute of Biophysics, College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Muscle Biology and Meat Science, National Beef Cattle Improvement Center, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China; Experts Workstation for Functional Beef Research and Development, Shaanxi Nanxiangshenghe Food Technology Company, Zhenba, Shaanxi 723600, China
| | - Di Zhuang
- Laboratory of Agricultural and Food Biophysics, Institute of Biophysics, College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Muscle Biology and Meat Science, National Beef Cattle Improvement Center, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China; Experts Workstation for Functional Beef Research and Development, Shaanxi Nanxiangshenghe Food Technology Company, Zhenba, Shaanxi 723600, China
| | - Youhong Wen
- Experts Workstation for Functional Beef Research and Development, Shaanxi Nanxiangshenghe Food Technology Company, Zhenba, Shaanxi 723600, China
| | - Jie Zhu
- Laboratory of Agricultural and Food Biophysics, Institute of Biophysics, College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Muscle Biology and Meat Science, National Beef Cattle Improvement Center, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China; Experts Workstation for Functional Beef Research and Development, Shaanxi Nanxiangshenghe Food Technology Company, Zhenba, Shaanxi 723600, China.
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96
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Beltrame G, Damerau A, Ahonen E, Mustonen SA, Adami R, Sellitto MR, Del Gaudio P, Linderborg KM. Production and simulated digestion of high-load beads containing Schizochytrium oil encapsulated utilizing prilling technique. Food Chem 2024; 460:140694. [PMID: 39126940 DOI: 10.1016/j.foodchem.2024.140694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 07/01/2024] [Accepted: 07/27/2024] [Indexed: 08/12/2024]
Abstract
The oil from the heterotroph Schizochytrium is a rich source of n-3 PUFA, particularly DHA, and therefore highly susceptible to oxidation. The present work reports the first application of coaxial prilling for the protection of this oil through microencapsulation. After process optimization, core-shell microparticles were produced with calcium or zinc alginate at different concentrations. Encapsulates were analyzed in their tocopherol and PUFA content. Prilling lowered the earlier but had little effect on the latter. Microcapsules coated with calcium alginate (1 % and 1.75 %) had higher oil load and encapsulation efficiency and were therefore submitted to in vitro digestion together with a simulated meal. Digesta were also analyzed with HPLC-qTOF and 1H NMR and compared to undigested encapsulates. While 1 % calcium shell granted lower oil release and protection from oxidation in the simulated gastrointestinal tract, chromatographic and spectroscopic data of digesta showed higher presence of lipid digestion products.
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Affiliation(s)
- Gabriele Beltrame
- Food Sciences, Department of Life Technologies, University of Turku, FI-20014 Turku, Finland
| | - Annelie Damerau
- Food Sciences, Department of Life Technologies, University of Turku, FI-20014 Turku, Finland
| | - Eija Ahonen
- Food Sciences, Department of Life Technologies, University of Turku, FI-20014 Turku, Finland
| | - Sari A Mustonen
- Food Sciences, Department of Life Technologies, University of Turku, FI-20014 Turku, Finland
| | - Renata Adami
- Department of Physics, University of Salerno, IT-84084 Fisciano, Italy
| | | | - Pasquale Del Gaudio
- Department of Pharmacy, University of Salerno, IT-84084 Fisciano, Italy; Research Centre for Biomaterials BIONAM, University of Salerno, IT-84084 Fisciano, Italy.
| | - Kaisa M Linderborg
- Food Sciences, Department of Life Technologies, University of Turku, FI-20014 Turku, Finland.
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97
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Głowacki MJ, Niedziałkowski P, Ryl J, Prześniak-Welenc M, Sawczak M, Prusik K, Ficek M, Janik M, Pyrchla K, Olewniczak M, Bojarski K, Czub J, Bogdanowicz R. Enhancing colloidal stability of nanodiamond via surface modification with dendritic molecules for optical sensing in physiological environments. J Colloid Interface Sci 2024; 675:236-250. [PMID: 38970910 DOI: 10.1016/j.jcis.2024.06.225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 06/17/2024] [Accepted: 06/28/2024] [Indexed: 07/08/2024]
Abstract
Pre-treatment of diamond surface in low-temperature plasma for oxygenation and in acids for carboxylation was hypothesized to promote the branching density of the hyperbranched glycidol polymer. This was expected to increase the homogeneity of the branching level and suppress interactions with proteins. As a result, composite nanodiamonds with reduced hydrodynamic diameters that are maintained in physiological environments were anticipated. Surfaces of 140-nm-sized nanodiamonds were functionalized with oxygen and carboxyl groups for grafting of hyperbranched dendritic polyglycerol via anionic ring-opening polymerization of glycidol. The modification was verified with Fourier-transform infrared spectroscopy and X-ray photoelectron spectroscopy. Dynamic light scattering investigated colloidal stability in pH-diverse (2-12) solutions, concentrated phosphate-buffered saline, and cell culture media. Thermogravimetric analysis of nanodiamonds-protein incubations examined non-specific binding. Fluorescence emission was tested across pH conditions. Molecular dynamics simulations modeled interparticle interactions in ionic solutions. The hyperbranched polyglycerol grafting increased colloidal stability of nanodiamonds across diverse pH, high ionic media like 10 × concentrated phosphate-buffered saline, and physiological media like serum and cell culture medium. The hyperbranched polyglycerol suppressed non-specific protein adsorption while maintaining intensive fluorescence of nanodiamonds regardless of pH. Molecular modelling indicated reduced interparticle interactions in ionic solutions correlating with the improved colloidal stability.
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Affiliation(s)
- Maciej J Głowacki
- Gdańsk University of Technology, Faculty of Electronics, Telecommunications and Informatics, Department of Metrology and Optoelectronics, Narutowicza 11/12, 80-233 Gdańsk, Poland.
| | - Paweł Niedziałkowski
- University of Gdańsk, Faculty of Chemistry, Department of Analytical Chemistry, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Jacek Ryl
- Gdańsk University of Technology, Faculty of Applied Physics and Mathematics, Institute of Nanotechnology and Materials Engineering, Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Marta Prześniak-Welenc
- Gdańsk University of Technology, Faculty of Applied Physics and Mathematics, Institute of Nanotechnology and Materials Engineering, Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Mirosław Sawczak
- Polish Academy of Sciences, The Szewalski Institute of Fluid-Flow Machinery, The Centre for Plasma and Laser Engineering, Fiszera 14, 80-231 Gdańsk, Poland
| | - Klaudia Prusik
- Gdańsk University of Technology, Faculty of Applied Physics and Mathematics, Institute of Nanotechnology and Materials Engineering, Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Mateusz Ficek
- Gdańsk University of Technology, Faculty of Electronics, Telecommunications and Informatics, Department of Metrology and Optoelectronics, Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Monika Janik
- Warsaw University of Technology, Institute of Microelectronics and Optoelectronics, Koszykowa 75, 00-662 Warsaw, Poland
| | - Krzysztof Pyrchla
- Gdańsk University of Technology, Faculty of Electronics, Telecommunications and Informatics, Department of Metrology and Optoelectronics, Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Michał Olewniczak
- Gdańsk University of Technology, Faculty of Chemistry, Department of Physical Chemistry, Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Krzysztof Bojarski
- Gdańsk University of Technology, Faculty of Chemistry, Department of Physical Chemistry, Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Jacek Czub
- Gdańsk University of Technology, Faculty of Chemistry, Department of Physical Chemistry, Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Robert Bogdanowicz
- Gdańsk University of Technology, Faculty of Electronics, Telecommunications and Informatics, Department of Metrology and Optoelectronics, Narutowicza 11/12, 80-233 Gdańsk, Poland.
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98
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Kim H, Min K, Kwon K, Eun Shim S, Baeck SH. Synergistic enhancement of Zn-air battery performance via integration of Ni-doped cobalt sulfide nanoparticles within N, S-doped carbon matrix. J Colloid Interface Sci 2024; 675:104-116. [PMID: 38968631 DOI: 10.1016/j.jcis.2024.06.242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 06/20/2024] [Accepted: 06/30/2024] [Indexed: 07/07/2024]
Abstract
Exploring precious metal-free bifunctional electrocatalysts for both the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) is essential for the practical application of rechargeable Zn-air battery (ZAB). Herein, Ni-doped Co9S8 nanoparticles embedded in a defect-rich N, S co-doped carbon matrix (d-NixCo9-xS8@NSC) are synthesized via a facile pyrolysis and acid treatment process. The introduction of abundant defects in both the carbon matrix and metal sulfide provides numerous active sites and significantly enhances the electrocatalytic performances for both the ORR and OER. d-NixCo9-xS8@NSC exhibits a superior half-wave potential of 0.841 V vs. RHE for the ORR and delivers a low overpotential of 0.329 V at 10 mA cm-2 for the OER. Additionally, Zn-air secondary battery using d-NixCo9-xS8@NSC as the air cathode displays a higher specific capacity of 734 mAh gZn-1 and a peak power density of 148.03 mW cm-2 compared to those of state-of-the-art Pt/C-RuO2 (673 mAh gZn-1 and 136.9 mW cm-2, respectively). These findings underscore the potential of d-NixCo9-xS8@NSC as a high-performance electrocatalyst for secondary ZABs, offering new perspectives on the design of efficient noble metal-free electrocatalysts for future energy storage and conversion applications.
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Affiliation(s)
- Hyejin Kim
- Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy Materials and Process, Inha University, Incheon 22212, Republic of Korea
| | - Kyeongseok Min
- Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy Materials and Process, Inha University, Incheon 22212, Republic of Korea
| | - Kyeongmin Kwon
- Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy Materials and Process, Inha University, Incheon 22212, Republic of Korea
| | - Sang Eun Shim
- Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy Materials and Process, Inha University, Incheon 22212, Republic of Korea
| | - Sung-Hyeon Baeck
- Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy Materials and Process, Inha University, Incheon 22212, Republic of Korea.
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99
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Walkowiak JJ, Litzen I, Michalska-Walkowiak J, Förster B, Stouten J, Bernaerts KV, Demco DE, Pich A. Microgels with controlled network topologies by photocrosslinking-assisted continuous precipitation polymerization. J Colloid Interface Sci 2024; 675:614-619. [PMID: 38991275 DOI: 10.1016/j.jcis.2024.07.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Revised: 07/03/2024] [Accepted: 07/06/2024] [Indexed: 07/13/2024]
Abstract
In this study, we present a new synthesis methodology based on photo-crosslinking-assisted continuous precipitation polymerization which allows controlling the distribution of crosslinks in microgels. In our approach we substituted conventional crosslinking agent by a comonomer carrying photo-crosslinkable 4-oxocyclopent-2-en-1-yl group. Microgel size, morphology, distribution of crosslinks and packing density of the polymer chains are studied as a function of retention time (Rt) in the flow reactor. Dynamic and static light scattering (DLS and SLS) as well as small angle X-ray scattering (SAXS) proved an excellent level of control over the distribution of crosslinks in microgels during the polymerization process. These results were confirmed by atomic force microscopy (AFM), indicating a difference in microgel stiffness and arrangement of the polymer network as resulting from increased Rt.
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Affiliation(s)
- Jacek J Walkowiak
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074 Aachen, Germany; DWI - Leibniz-Institute for Interactive Materials e.V, Forckenbeckstraße 50, 52074 Aachen, Germany; Sustainable Polymer Synthesis Group, Aachen-Maastricht Institute for Biobased Materials (AMIBM), Maastricht University, Urmonderbaan 22, 6167 RD Geleen, the Netherlands
| | - Inga Litzen
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074 Aachen, Germany; DWI - Leibniz-Institute for Interactive Materials e.V, Forckenbeckstraße 50, 52074 Aachen, Germany
| | - Joanna Michalska-Walkowiak
- CNRS, UMR 8232 - IPCM - Institut Parisien de Chimie Moléculaire - Polymer Chemistry Team, Sorbonne Université, 4 Pl. Jussieu, 75005 Paris, France
| | - Beate Förster
- Ernst Ruska Centre (ER-C 1) Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Jules Stouten
- Sustainable Polymer Synthesis Group, Aachen-Maastricht Institute for Biobased Materials (AMIBM), Maastricht University, Urmonderbaan 22, 6167 RD Geleen, the Netherlands
| | - Katrien V Bernaerts
- Sustainable Polymer Synthesis Group, Aachen-Maastricht Institute for Biobased Materials (AMIBM), Maastricht University, Urmonderbaan 22, 6167 RD Geleen, the Netherlands
| | - Dan E Demco
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074 Aachen, Germany; DWI - Leibniz-Institute for Interactive Materials e.V, Forckenbeckstraße 50, 52074 Aachen, Germany
| | - Andrij Pich
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074 Aachen, Germany; DWI - Leibniz-Institute for Interactive Materials e.V, Forckenbeckstraße 50, 52074 Aachen, Germany; Sustainable Polymer Synthesis Group, Aachen-Maastricht Institute for Biobased Materials (AMIBM), Maastricht University, Urmonderbaan 22, 6167 RD Geleen, the Netherlands.
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Shin K, Suh HW, Suberi A, Whang CH, Ene M, Grundler J, Grun MK, Saltzman WM. Branching in poly(amine-co-ester) polyplexes impacts mRNA transfection. Biomaterials 2024; 311:122692. [PMID: 38986360 PMCID: PMC11298310 DOI: 10.1016/j.biomaterials.2024.122692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 05/23/2024] [Accepted: 06/26/2024] [Indexed: 07/12/2024]
Abstract
Branching is a key structural parameter of polymers, which can have profound impacts on physicochemical properties. It has been demonstrated that branching is a modulating factor for mRNA delivery and transfection using delivery vehicles built from cationic polymers, but the influence of polymer branching on mRNA delivery remains relatively underexplored compared to other polymer features such as monomer composition, hydrophobicity, pKa, or the type of terminal group. In this study, we examined the impact of branching on the physicochemical properties of poly(amine-co-esters) (PACE) and their efficiency in mRNA transfection in vivo and in vitro under various conditions. PACE polymers were synthesized with various degrees of branching ranging from 0 to 0.66, and their transfection efficiency was systemically evaluated. We observed that branching improves the stability of polyplexes but reduces the pH buffering capacity. Therefore, the degree of branching (DB) must be optimized in a delivery route specific manner due to differences in challenges faced by polyplexes in different physiological compartments. Through a systematic analysis of physicochemical properties and mRNA transfection in vivo and in vitro, this study highlights the influence of polymer branching on nucleic acid delivery.
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Affiliation(s)
- Kwangsoo Shin
- Department of Biomedical Engineering, Yale University, New Haven, CT, 06511, USA; Department of Polymer Science & Engineering and Program in Environmental and Polymer Engineering, Inha University, Incheon, 22212, Republic of Korea
| | - Hee-Won Suh
- Department of Biomedical Engineering, Yale University, New Haven, CT, 06511, USA
| | - Alexandra Suberi
- Department of Biomedical Engineering, Yale University, New Haven, CT, 06511, USA
| | - Chang-Hee Whang
- Department of Biomedical Engineering, Yale University, New Haven, CT, 06511, USA
| | - Madalina Ene
- Department of Biomedical Engineering, Yale University, New Haven, CT, 06511, USA
| | - Julian Grundler
- Department of Biomedical Engineering, Yale University, New Haven, CT, 06511, USA; Department of Chemistry, Yale University, New Haven, CT, 06511, USA
| | - Molly K Grun
- Department of Biomedical Engineering, Yale University, New Haven, CT, 06511, USA
| | - W Mark Saltzman
- Department of Biomedical Engineering, Yale University, New Haven, CT, 06511, USA; Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, 06511, USA; Department of Chemical & Environmental Engineering, Yale University, New Haven, CT, 06511, USA; Department of Cellular & Molecular Physiology, Yale School of Medicine, New Haven, CT, 06510, USA; Department of Dermatology, Yale School of Medicine, New Haven, CT, 06510, USA.
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