101
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Shen X, Zhao D, Shi J, Li C, Bai Y, Qiu L, Xuan Y, Wang J. Copper peroxide loaded gelatin/oxide dextran hydrogel with temperature and pH responsiveness for antibacterial and wound healing activity. Int J Biol Macromol 2024; 274:133258. [PMID: 38925171 DOI: 10.1016/j.ijbiomac.2024.133258] [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: 02/08/2024] [Revised: 06/07/2024] [Accepted: 06/17/2024] [Indexed: 06/28/2024]
Abstract
Bacterial infection and tissue hypoxia always prevent wound healing, so multifunctional platforms with antimicrobial and oxygen-supplying functions were developed. However, they face many difficulties such as complex preparation and low oxygen release. To address this challenge, a copper peroxide loaded gelatin/oxide dextran hydrogel (CGO) was prepared. Surprisingly, CGO hydrogel as a wound dressing not only had good biocompatibility, injectivity, and mechanical properties, but also exhibited mild photothermal properties, temperature responsiveness, and pH responsiveness. After being applied to wounds infected with bacteria, CGO hydrogel released copper peroxide under near-infrared laser irradiation, which produced copper ions and hydrogen peroxide, combined with PTT to kill bacteria. After the bacteria were cleared from the wound and the pH of the wound was changed to be acidic, CGO hydrogel released copper peroxide via pH response. Copper ions and oxygen produced from copper peroxide accelerated wound healing by promoting angiogenesis. The multi-responsive and multi-mode treatment platform provided a potential strategy for treating bacteria-infected wounds.
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Affiliation(s)
- Xinyue Shen
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Donghui Zhao
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Junyi Shi
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China; Hua Lookeng Honors College, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Chaoqing Li
- School of Laboratory Medicine, Hubei University of Chinese Medicine & Hubei Shizhen Laboratory, Wuhan, Hubei 430065, China
| | - Yang Bai
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Lin Qiu
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China.
| | - Yang Xuan
- Key Lab of Biotechnology and Bioresources Utilization of Ministry of Education, College of Life Science, Dalian Minzu University, Dalian, Liaoning 116600, China.
| | - Jianhao Wang
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China.
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102
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Qi R, Yang M, Zheng T, Liu X, Xia Y, Cheng YJ, Müller-Buschbaum P. Multifunctional Umbrella: In Situ Interface Film Forming on the High-Voltage LiCoO 2 Cathode by a Tiny Amount of Nanoporous Polymer Additives for High-Energy-Density Li-Ion Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2312087. [PMID: 38441286 DOI: 10.1002/smll.202312087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 02/16/2024] [Indexed: 08/02/2024]
Abstract
The LiCoO2 (LCO) cathode is foreseen for extensive commercial applications owing to its high specific capacity and stability. Therefore, there is considerable interest in further enhancing its specific capacity by increasing the charging voltage. However, single-crystal LCO suffers from a significant capacity degradation when charged to 4.5 V due to the irreversible phase transition and unstable structure. Herein, an ultra-small amount (0.5% wt. in the electrode) of multi-functional PIM-1 (a polymer with intrinsic microporosity) additive is utilized to prepare a kind of binder-free electrode. PIM-1 modulates the solvation structure of LiPF6 due to its unique structure, which helps to form a stable, robust, and inorganic-rich cathod-eelectrolyte interphase (CEI) film on the surface of LCO at a high voltage of 4.5 V. This reduces the irreversible phase transition of LCO, thereby enhancing the cyclic stability and improving the rate performance, providing new perspectives for the electrodes fabrication and improving LCO-based high-energy-density cathodes.
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Affiliation(s)
- Ruoxuan Qi
- Chair for Functional Materials, Department of Physics, TUM School of Natural Sciences, Technical University of Munich, 85748, Garching, Germany
| | - Ming Yang
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Rd, Ningbo, Zhejiang Province, 315201, P. R. China
| | - Tianle Zheng
- Chair for Functional Materials, Department of Physics, TUM School of Natural Sciences, Technical University of Munich, 85748, Garching, Germany
| | - Xingchen Liu
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Rd, Ningbo, Zhejiang Province, 315201, P. R. China
- School of Materials Science & Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Yonggao Xia
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Rd, Ningbo, Zhejiang Province, 315201, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19A Yuquan Rd, Shijingshan District, Beijing, 100049, P. R. China
| | - Ya-Jun Cheng
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Rd, Ningbo, Zhejiang Province, 315201, P. R. China
- College of Renewable Energy, Hohai University, 1915 Hohai Ave, Changzhou, Jiangsu Province, 213200, P. R. China
| | - Peter Müller-Buschbaum
- Chair for Functional Materials, Department of Physics, TUM School of Natural Sciences, Technical University of Munich, 85748, Garching, Germany
- Heinz Maier-Leibnitz Zentrum (MLZ), Technical University of Munich, Lichtenbergstr. 1, 85748, Garching, Germany
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103
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Hassanzadeh-Tabrizi SA. Alginate based hemostatic materials for bleeding management: A review. Int J Biol Macromol 2024; 274:133218. [PMID: 38901512 DOI: 10.1016/j.ijbiomac.2024.133218] [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: 04/17/2024] [Revised: 06/04/2024] [Accepted: 06/15/2024] [Indexed: 06/22/2024]
Abstract
Severe bleeding has caused significant financial losses as well as a major risk to the lives and health of military and civilian populations. Under some situations, the natural coagulation mechanism of the body is unable to achieve fast hemostasis without the use of hemostatic drugs. Thus, the development of hemostatic materials and techniques is essential. Improving the quality of life and survival rate of patients and minimizing bodily damage requires fast, efficient hemostasis and prevention of bleeding. Alginate is regarded as an outstanding hemostatic polymer because of its non-immunogenicity, biodegradability, good biocompatibility, simple gelation, non-toxicity, and easy availability. This review summarizes the basics of hemostasis and emphasizes the recent developments regarding alginate-based hemostatic systems. Structural modifications and mixing with other materials have widely been used for the improvement of hemostatic characteristics of alginate and for making multifunctional medical devices that not only prevent uncontrolled bleeding but also have antibacterial characteristics, drug delivery abilities, and curing effects. This review is hoped to prepare critical insights into alginate modifications for better hemostatic properties.
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Affiliation(s)
- S A Hassanzadeh-Tabrizi
- Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran.
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104
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Yan L, Wang Y, Wang W, Luo J, Cheng B, Yang J, Li B, Wang X. A poly (lactic-co-glycolic acid) self-pumping Janus dressing with bidirectional biofluid transport for diabetic wound healing via anti-bacteria and pro-angiogenesis. Int J Biol Macromol 2024; 275:133361. [PMID: 38960245 DOI: 10.1016/j.ijbiomac.2024.133361] [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: 04/04/2024] [Revised: 06/04/2024] [Accepted: 06/20/2024] [Indexed: 07/05/2024]
Abstract
Diabetic wound healing poses a substantial challenge owing to bacterial infections, insufficient angiogenesis, and excessive exudates. Currently, most of the clinical dressings used for diabetic wounds are still conventional dressings such as gauze. In this study, a three-layer Janus dressing was developed via continuous electrostatic spinning. The top-layer was composed of polylactic acid-glycolic acid and hydroxyapatite doped with silver ions and silicate. The hydrophobic top-layer prevented the adhesion of foreign bacteria. The mid-layer was composed of polyethylene glycol, polylactic acid-glycolic acid and hydroxyapatite doped with silver ions and silicate facilitated exudate absorption and bioactive ion release. The modified sub-layer containing polylactic acid-glycolic acid, hydroxyapatite doped with silver ions and silicate and sodium alginate microspheres enabled both the transport of wound exudate from the wound bed to dressing and the backflow of bioactive silver ions and silicate to the wound bed, thereby reducing infection and stimulating angiogenesis. Through in vivo and in vivo experiments, the Janus dressing showed to have antimicrobial, angiogenic, and exudate-control properties that accelerate healing in diabetic wounds. As a novel dressing, the multifunctional, self-pumping Janus wound dressing with bi-directional biofluidic transport offers a new approach to diabetic wound healing.
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Affiliation(s)
- Lisi Yan
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China; Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, PR China
| | - Yu Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China; Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, PR China
| | - Wenyuan Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China; Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, PR China
| | - Jing Luo
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China; Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, PR China
| | - Bo Cheng
- Department of Stomatology, Zhongnan Hospital of Wuhan University, Wuhan 430060, PR China
| | - Jing Yang
- School of Foreign Languages, Wuhan University of Technology, Wuhan 430070, PR China
| | - Binbin Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China; Hainan Institute, Wuhan University of Technology, Sanya 572000, PR China; Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, PR China.
| | - Xinyu Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China; Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu hydrogen Valley, Foshan 528200, PR China; Hainan Institute, Wuhan University of Technology, Sanya 572000, PR China; Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, PR China; Department of Stomatology, Zhongnan Hospital of Wuhan University, Wuhan 430060, PR China.
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105
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Wei L, Zhan S, Zhou M, Xu X, You F, Zheng H. A Powerful Strategy for Carbon Reduction: Recyclable Mono-Material Polyethylene Functional Film. Polymers (Basel) 2024; 16:2196. [PMID: 39125222 PMCID: PMC11314730 DOI: 10.3390/polym16152196] [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: 07/11/2024] [Revised: 07/24/2024] [Accepted: 07/30/2024] [Indexed: 08/12/2024] Open
Abstract
Given the abundant plastics produced globally, and the negative environmental impacts of disposable plastic products throughout their life cycle, there has been significant attention drawn by the general public and governments worldwide. Mono-material multilayer packaging is a potent strategy to address the challenge of carbon emissions as it offers specific functionalities (such as strength and barrier properties) through its layers and facilitates recycling. In this study, a five-layer co-extruded polyethylene composite film LLDPE/mPE/PVA/mPE/LLDPE was taken as a model to investigate its mechanical properties and barrier properties after four recycling cycles. The result revealed that the longitudinal tensile strength and transvers tensile were, respectively, dropped from 29.66 MPa and 24.9 MPa to 21.972 MPa and 19.222 MPa after the recycling; it is shown that the film still has good mechanical properties after the recycling cycle. However, a noticeable decline in the barrier properties was observed after the second recycling. In contrast to traditional plastics, a mono-material film with a 10 wt.% circulating mass could reduce CO2 emissions by 3692.25 kg for every 1.0 ton of plastic products after four recycling cycles.
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Affiliation(s)
- Liming Wei
- Shanghai Royal New Materials Technology Company Limited, Shanghai 201803, China;
| | - Shengqi Zhan
- Province Key Lab of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430073, China; (S.Z.); (M.Z.); (X.X.); (F.Y.)
| | - Mingyu Zhou
- Province Key Lab of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430073, China; (S.Z.); (M.Z.); (X.X.); (F.Y.)
| | - Xuerong Xu
- Province Key Lab of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430073, China; (S.Z.); (M.Z.); (X.X.); (F.Y.)
| | - Feng You
- Province Key Lab of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430073, China; (S.Z.); (M.Z.); (X.X.); (F.Y.)
| | - Huaming Zheng
- Province Key Lab of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430073, China; (S.Z.); (M.Z.); (X.X.); (F.Y.)
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106
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Zielinski D, Szpecht A, Kukawka R, Dzialkowska J, Pietrowski M, Zielinski M, Palacz M, Nadobna P, Smiglak M. Supported Ionic Liquid-Phase Materials (SILP) as a Multifunctional Group of Highly Stable Modifiers and Hardeners for Carbon and Flax Epoxy Composites. Chempluschem 2024; 89:e202400193. [PMID: 38619388 DOI: 10.1002/cplu.202400193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/10/2024] [Accepted: 04/15/2024] [Indexed: 04/16/2024]
Abstract
This paper introduces a novel approach to enhance epoxy resin formulations by using SILP materials as multifunctional hardeners and fillers in composite structures reinforced with carbon and flax fibers. This study explores the integration of ionic liquids (ILs) onto a silica support structure, presenting various permutations involving silica selection, ionic liquid choice, and concentration. The focus of this study was to elucidate the influence of SILP on resin curing ability and the mechanical properties of the resulting composites. Detailed research was conducted, including Brunauer-Emmett-Teller analysis (BET) for SILP materials and curing characterization for epoxy resin formulations with different SILP materials. Furthermore, the mechanical properties of the obtained composites were determined by Scanning Electron Microscopy analysis (SEM) (the force at break, the maximum elongation at break, tensile strength, and modulus of elasticity). Through SILP incorporation, the mechanical properties of composites, including the modulus of elasticity and tensile strength, are substantially improved, a phenomenon akin to traditional filler effects. The findings highlight SILP materials as prospective candidates for concurrent hardening and filling roles within composites (through a single-step procedure, with prolonged storage stability and controlled processing conditions), particularly pertinent as the composite industry veers toward epoxy bioresins necessitating liquefaction via temperature application.
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Affiliation(s)
- Dawid Zielinski
- Poznan Science and Technology Park, Adam Mickiewicz University Foundation, ul. Rubiez 46, 61-612, Poznan, Poland
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, ul. Uniwersytetu Poznańskiego 8, 61-614, Poznan, Poland
| | - Andrea Szpecht
- Poznan Science and Technology Park, Adam Mickiewicz University Foundation, ul. Rubiez 46, 61-612, Poznan, Poland
| | - Rafal Kukawka
- Poznan Science and Technology Park, Adam Mickiewicz University Foundation, ul. Rubiez 46, 61-612, Poznan, Poland
| | - Joanna Dzialkowska
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, ul. Uniwersytetu Poznańskiego 8, 61-614, Poznan, Poland
| | - Mariusz Pietrowski
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, ul. Uniwersytetu Poznańskiego 8, 61-614, Poznan, Poland
| | - Michal Zielinski
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, ul. Uniwersytetu Poznańskiego 8, 61-614, Poznan, Poland
| | - Magdalena Palacz
- Poznan Science and Technology Park, Adam Mickiewicz University Foundation, ul. Rubiez 46, 61-612, Poznan, Poland
| | - Paulina Nadobna
- Poznan Science and Technology Park, Adam Mickiewicz University Foundation, ul. Rubiez 46, 61-612, Poznan, Poland
| | - Marcin Smiglak
- Poznan Science and Technology Park, Adam Mickiewicz University Foundation, ul. Rubiez 46, 61-612, Poznan, Poland
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107
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Deng J, Yao Z, Wang S, Zhang X, Zhan L, Wang T, Yu W, Zeng J, Wu J, Fu S, Wu S, Ouyang Y, Huang C. Uni-directional release of ibuprofen from an asymmetric fibrous membrane enables effective peritendinous anti-adhesion. J Control Release 2024; 372:251-264. [PMID: 38908755 DOI: 10.1016/j.jconrel.2024.06.046] [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: 12/16/2023] [Revised: 05/31/2024] [Accepted: 06/19/2024] [Indexed: 06/24/2024]
Abstract
Drug-loaded porous membranes have been deemed to be effective physicochemical barriers to separate postoperative adhesion-prone tissues in tendon healing. However, cell viability and subsequent tissue regeneration might be severely interfered with the unrestricted release and the locally excessive concentration of anti-inflammatory drugs. Herein, we report a double-layered membrane with sustained and uni-directional drug delivery features to prevent peritendinous adhesion without hampering the healing outcome. A vortex-assisted electrospinning system in combination with ibuprofen (IBU)-in-water emulsion was utilized to fabricate IBU-loaded poly-ʟ-lactic-acid (PLLA) fiber bundle membrane (PFB-IBU) as the anti-adhesion layer. The resultant highly porous structure, oleophilic and hydrophobic nature of PLLA fibers enabled in situ loading of IBU with a concentration gradient across the membrane thickness. Aligned collagen nanofibers were further deposited at the low IBU concentration side of the membrane for regulating cell growth and achieving uni-directional release of IBU. Drug release kinetics showed that the release amount of IBU from the high concentration side reached 79.32% at 14 d, while it was only 0.35% at the collagen side. Therefore, fibroblast proliferation at the high concentration side was successfully inhibited without affecting the oriented growth of tendon-derived stem cells at the other side. In vivo evaluation of the rat Achilles adhesion model confirmed the successful peritendinous anti-adhesion of our double-layered membrane, in that the macrophage recruitment, the inflammatory factor secretion and the deposition of pathological adhesion markers such as α-SMA and COL-III were all inhibited, which greatly improved the peritendinous fibrosis and restored the motor function of tendon.
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Affiliation(s)
- Jixia Deng
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Zhixiao Yao
- Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
| | - Shikun Wang
- Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
| | - Xinyu Zhang
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Lei Zhan
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Tongyu Wang
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Wenhua Yu
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Jiamei Zeng
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Jinglei Wu
- Biomaterials and Tissue Engineering Laboratory, College of Chemistry and Chemical Engineering and Biological Engineering, Donghua University, Shanghai 201620, China
| | - Shaoju Fu
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Shihao Wu
- School of Medicine, Yunnan University, Kunming, Yunnan 650091, China.
| | - Yuanming Ouyang
- Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China.
| | - Chen Huang
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China.
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Fernández-Solís KG, Domínguez-Fonseca E, Martínez BMG, Becerra AG, Ochoa EF, Mendizábal E, Toriz G, Loyer P, Rosselgong J, Bravo-Anaya LM. Synthesis, characterization and stability of crosslinked chitosan-maltodextrin pH-sensitive nanogels. Int J Biol Macromol 2024; 274:133277. [PMID: 38908642 DOI: 10.1016/j.ijbiomac.2024.133277] [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: 02/25/2024] [Revised: 04/20/2024] [Accepted: 06/18/2024] [Indexed: 06/24/2024]
Abstract
Polysaccharide-based nanogels offer a wide range of chemical compositions and are of great interest due to their biodegradability, biocompatibility, non-toxicity, and their ability to display pH, temperature, or enzymatic response. In this work, we synthesized monodisperse and tunable pH-sensitive nanogels by crosslinking, through reductive amination, chitosan and partially oxidized maltodextrins, by keeping the concentration of chitosan close to its overlap concentration, i.e. in the dilute and semi-dilute regime. The chitosan/maltodextrin nanogels presented sizes ranging from 63 ± 9 to 279 ± 16 nm, showed quasi-spherical and cauliflower-like morphology, reached a ζ-potential of +36 ± 2 mV and maintained a colloidal stability for up to 7 weeks. It was found that the size and surface charge of nanogels depended both on the oxidation degree of maltodextrins and chitosan concentration, as well as on its degree of acetylation and protonation, the latter tuned by pH. The pH-responsiveness of the nanogels was evidenced by an increased size, owed to swelling, and ζ-potential when pH was lowered. Finally, maltodextrin-chitosan biocompatible nanogels were assessed by cell viability assay performed using the HEK293T cell line.
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Affiliation(s)
- Karla Gricelda Fernández-Solís
- Universidad de Guadalajara, Departamento de Química, Blvd. M. García Barragán #1451, C.P. 44430 Guadalajara, Jalisco, Mexico; Université de Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France
| | - Estefanía Domínguez-Fonseca
- Université de Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France; CUTonalá, Departamento de Ciencias Básicas y Aplicadas, Universidad de Guadalajara, Nuevo Periférico # 555, C.P.45425 Ejido San José Tatepozco, Jalisco, Mexico
| | - Brianda María González Martínez
- CUTonalá, Departamento de Ciencias Básicas y Aplicadas, Universidad de Guadalajara, Nuevo Periférico # 555, C.P.45425 Ejido San José Tatepozco, Jalisco, Mexico
| | - Alberto Gutiérrez Becerra
- CUTonalá, Departamento de Ciencias Básicas y Aplicadas, Universidad de Guadalajara, Nuevo Periférico # 555, C.P.45425 Ejido San José Tatepozco, Jalisco, Mexico
| | - Edgar Figueroa Ochoa
- Universidad de Guadalajara, Departamento de Química, Blvd. M. García Barragán #1451, C.P. 44430 Guadalajara, Jalisco, Mexico
| | - Eduardo Mendizábal
- Universidad de Guadalajara, Departamento de Química, Blvd. M. García Barragán #1451, C.P. 44430 Guadalajara, Jalisco, Mexico
| | - Guillermo Toriz
- Departamento de Madera, Celulosa y Papel, Universidad de Guadalajara, Camino R. Padilla Sánchez, 2100, Nextipac, 45200 Zapopan, Jalisco, Mexico
| | - Pascal Loyer
- Université de Rennes, Inserm, INRAE, Institut NUMECAN, UMR-A 1341, UMR-S 1317, Plateforme SynNanoVect, Rennes, France
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Cazier EA, Pham TN, Cossus L, Abla M, Ilc T, Lawrence P. Exploring industrial lignocellulosic waste: Sources, types, and potential as high-value molecules. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 188:11-38. [PMID: 39094219 DOI: 10.1016/j.wasman.2024.07.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 07/22/2024] [Accepted: 07/24/2024] [Indexed: 08/04/2024]
Abstract
Lignocellulosic biomass has a promising role in a circular bioeconomy and may be used to produce valuable molecules for green chemistry. Lignocellulosic biomass, such as food waste, agricultural waste, wood, paper or cardboard, corresponded to 15.7% of all waste produced in Europe in 2020, and has a high potential as a secondary raw material for industrial processes. This review first presents industrial lignocellulosic waste sources, in terms of their composition, quantities and types of lignocellulosic residues. Secondly, the possible high added-value chemicals obtained from transformation of lignocellulosic waste are detailed, as well as their potential for applications in the food industry, biomedical, energy or chemistry sectors, including as sources of polyphenols, enzymes, bioplastic precursors or biofuels. In a third part, various available transformation treatments, such as physical treatments with ultrasound or heat, chemical treatments with acids or bases, and biological treatments with enzymes or microorganisms, are presented. The last part discusses the perspectives of the use of lignocellulosic waste and the fact that decreasing the cost of transformation is one of the major issues for improving the use of lignocellulosic biomass in a circular economy and green chemistry approach, since it is currently often more expensive than petroleum-based counterparts.
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Affiliation(s)
- Elisabeth A Cazier
- UCLy (Lyon Catholic University), ESTBB, Lyon, France; UCLy (Lyon Catholic University), UR CONFLUENCE : Sciences et Humanités (EA 1598), Lyon, France; Nantes Université, Oniris, GEPEA, UMR 6144, F-44600 Saint-Nazaire, France(1).
| | - Thanh-Nhat Pham
- UCLy (Lyon Catholic University), ESTBB, Lyon, France; UCLy (Lyon Catholic University), UR CONFLUENCE : Sciences et Humanités (EA 1598), Lyon, France
| | - Louis Cossus
- UCLy (Lyon Catholic University), ESTBB, Lyon, France; UCLy (Lyon Catholic University), UR CONFLUENCE : Sciences et Humanités (EA 1598), Lyon, France
| | - Maher Abla
- UCLy (Lyon Catholic University), ESTBB, Lyon, France; UCLy (Lyon Catholic University), UR CONFLUENCE : Sciences et Humanités (EA 1598), Lyon, France.
| | - Tina Ilc
- UCLy (Lyon Catholic University), ESTBB, Lyon, France; UCLy (Lyon Catholic University), UR CONFLUENCE : Sciences et Humanités (EA 1598), Lyon, France.
| | - Philip Lawrence
- UCLy (Lyon Catholic University), ESTBB, Lyon, France; UCLy (Lyon Catholic University), UR CONFLUENCE : Sciences et Humanités (EA 1598), Lyon, France.
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Rahimnejad M, Jahangiri S, Zirak Hassan Kiadeh S, Rezvaninejad S, Ahmadi Z, Ahmadi S, Safarkhani M, Rabiee N. Stimuli-responsive biomaterials: smart avenue toward 4D bioprinting. Crit Rev Biotechnol 2024; 44:860-891. [PMID: 37442771 DOI: 10.1080/07388551.2023.2213398] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 02/24/2023] [Accepted: 03/20/2023] [Indexed: 07/15/2023]
Abstract
3D bioprinting is an advanced technology combining cells and bioactive molecules within a single bioscaffold; however, this scaffold cannot change, modify or grow in response to a dynamic implemented environment. Lately, a new era of smart polymers and hydrogels has emerged, which can add another dimension, e.g., time to 3D bioprinting, to address some of the current approaches' limitations. This concept is indicated as 4D bioprinting. This approach may assist in fabricating tissue-like structures with a configuration and function that mimic the natural tissue. These scaffolds can change and reform as the tissue are transformed with the potential of specific drug or biomolecules released for various biomedical applications, such as biosensing, wound healing, soft robotics, drug delivery, and tissue engineering, though 4D bioprinting is still in its early stages and more works are required to advance it. In this review article, the critical challenge in the field of 4D bioprinting and transformations from 3D bioprinting to 4D phases is reviewed. Also, the mechanistic aspects from the chemistry and material science point of view are discussed too.
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Affiliation(s)
- Maedeh Rahimnejad
- Biomedical Engineering Institute, School of Medicine, Université de Montréal, Montréal, Canada
- Research Centre, Centre Hospitalier de L'Université de Montréal (CRCHUM), Montréal, Canada
| | - Sepideh Jahangiri
- Research Centre, Centre Hospitalier de L'Université de Montréal (CRCHUM), Montréal, Canada
- Department of Biomedical Sciences, Université de Montréal, Montréal, Canada
| | | | | | - Zarrin Ahmadi
- School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, Australia
- The Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Melbourne, Victoria, Australia
| | - Sepideh Ahmadi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Moein Safarkhani
- Department of Chemistry, Sharif University of Technology, Tehran, Iran
| | - Navid Rabiee
- Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, Australia
- School of Engineering, Macquarie University, Sydney, Australia
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111
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Ramisetti P, Dumpala M, Danikonda SK, Suramoni R, Nampally B, Katakam M. Synthesis of biopolymer blends nanocomposites embedded with mono-(Ag, Fe) and bi-(Ag-Fe) metallic nanoparticles using an eco-friendly approach for antimicrobial activities. Bioprocess Biosyst Eng 2024; 47:1293-1306. [PMID: 38568262 DOI: 10.1007/s00449-024-03011-6] [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: 12/25/2023] [Accepted: 03/28/2024] [Indexed: 07/25/2024]
Abstract
Plant-mediated solution casting is used to develop eco-friendly polymer blend nanocomposites from polyvinyl alcohol (PVA) and polyvinylpyrrolidone (PVP) doped with Silver (Ag), Ferrous (Fe) monometallic and Silver-Ferrous (Ag-Fe) bimetallic nanoparticles (NPs). These nanocomposites were studied to understand their electromagnetic interface (EMI) shielding efficiency and antimicrobial activities, besides evaluating their physical and chemical properties. The Fourier transform infrared (FTIR), X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and energy dispersive X-ray (EDX) characterization techniques were used to examine the interactions between the polymers, the presence of silver and ferrous particles in the composites, the crystallinity shift, the surface morphology, the shape and size of the nanoparticles and the distribution of the nanoparticles in the composites. The FTIR spectra showed the interactions among the components of the composites. According to XRD spectra, the incorporation of nanoparticles into the PVA polymer significantly reduced the crystalline character of the polymer from 0.38 to 0.24 for the composition consisting of silver and iron nanoparticles in equal proportion. The results from SEM, EDX and XRD corroborate the presence of nanoparticle forms. The thermogravimetric analysis (TGA) tests reveal that the thermal stability of bimetallic composites is greater than that of monometallic composites. The tensile properties showed that the addition of nanoparticles to the PVA/PVP polymer matrix increased its mechanical strength from 59.3 MPa to 85.5 MPa. We examined its efficacy against Escherichia coli, Staphylococcus aureus and Candida albicans as microorganisms. Good antibacterial and antifungal activity was observed. The bimetallic composites demonstrated greater activity than monometallic composites against these bacterial and fungal species. All bimetallic nanocomposites have shown enhanced, loss due to reflection, loss due to absorption, and the total EMI shielding efficiency at 8 GHz (X-band) and 16 GHz (Ku-band) frequency. All these results ratify, that these newly developed bio nanocomposites are most suitable in many applications, in EMI shielding, nanotechnology, and medical fields.
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Affiliation(s)
- Praveen Ramisetti
- Polymer Nanocomposites and Functional Materials Laboratory, Department of Physics, University College of Science, Osmania University, Hyderabad, 500 007, Telangana, India
- Department of Physics, Government Degree College for Women, Khammam, 507 001, Telangana, India
| | - Madhuri Dumpala
- Polymer Nanocomposites and Functional Materials Laboratory, Department of Physics, University College of Science, Osmania University, Hyderabad, 500 007, Telangana, India
| | - Suresh Kumar Danikonda
- Department of Physics, University P G College, Satavahana University, Godavarikhani, 505 209, Telangana, India
| | - Ramesh Suramoni
- University Institute of Sciences and Applied Arts (UISAA), Guru Nanak University, Ibrahimpatnam, Hyderabad, 500100, Telangana, India
| | - Bikshamaiah Nampally
- Department of Physics, University College of Science, Mahatma Gandhi University, Nalgonda, 508 001, Telangana, India
| | - Madhukar Katakam
- Polymer Nanocomposites and Functional Materials Laboratory, Department of Physics, University College of Science, Osmania University, Hyderabad, 500 007, Telangana, India.
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112
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Zhang J, Li X, Cheng M, Wan K, Yan S, Peng W, Duan G, Wu Y, Wen L. MoO 3-X nanodots coated suture for combating surgical site infection via antibacterial and anti-inflammatory properties. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2024; 60:102757. [PMID: 38889854 DOI: 10.1016/j.nano.2024.102757] [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: 08/03/2023] [Revised: 03/07/2024] [Accepted: 05/13/2024] [Indexed: 06/20/2024]
Abstract
Surgical site infection (SSI) significantly affects patient recovery time, health outcomes and quality of life which is closely associated with the use of implants or mesh. Sutures are the most frequently used implants that play a significant role in the development of SSI. Studies have demonstrated that the administration of effective bactericidal and anti-inflammatory treatments can significantly decrease the incidence of SSI. To address this concern, a versatile suture was engineered by coating MoO3-X nanodots in this study. The incorporation of MoO3-X nanodots endowed the suture with desirable antibacterial and anti-inflammatory properties that were evaluated in in vitro and in vivo experiments. The results showed its remarkable ability to facilitate wound healing and prevent SSI through its dual action of combating bacterial infection and reducing inflammation. These findings highlight the promising potential of this multifunctional surgical suture as a versatile tool to promote better outcomes in surgical procedures.
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Affiliation(s)
- Jingyu Zhang
- Department of Surgery, The Second Affiliated Hospital of Soochow University, Jiangsu 215004, China
| | - Xuexiao Li
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Jiangsu 215123, China
| | - Ming Cheng
- Department of Surgery, The Second Affiliated Hospital of Soochow University, Jiangsu 215004, China
| | - Kaichen Wan
- Department of osteology, The First Affiliated Hospital of Soochow University, Jiangsu 215000, China
| | - Shangcheng Yan
- Department of Surgery, The Second Affiliated Hospital of Soochow University, Jiangsu 215004, China
| | - Wei Peng
- Department of Surgery, The Second Affiliated Hospital of Soochow University, Jiangsu 215004, China
| | - Guangxin Duan
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Jiangsu 215123, China.
| | - Yongyou Wu
- Department of Surgery, The Second Affiliated Hospital of Soochow University, Jiangsu 215004, China.
| | - Ling Wen
- Department of Radiology, The Fourth Affiliated Hospital of Soochow University, Medical Centre of Soochow University, Jiangsu 215000, China.
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113
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Hu L, Gao X, Wang H, Song Y, Zhu Y, Tao Z, Yuan B, Hu R. Progress of Polymer Electrolytes Worked in Solid-State Lithium Batteries for Wide-Temperature Application. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2312251. [PMID: 38461521 DOI: 10.1002/smll.202312251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/20/2024] [Indexed: 03/12/2024]
Abstract
Solid-state Li-ion batteries have emerged as the most promising next-generation energy storage systems, offering theoretical advantages such as superior safety and higher energy density. However, polymer-based solid-state Li-ion batteries face challenges across wide temperature ranges. The primary issue lies in the fact that most polymer electrolytes exhibit relatively low ionic conductivity at or below room temperature. This sensitivity to temperature variations poses challenges in operating solid-state lithium batteries at sub-zero temperatures. Moreover, elevated working temperatures lead to polymer shrinkage and deformation, ultimately resulting in battery failure. To address this challenge of polymer-based solid-state batteries, this review presents an overview of various promising polymer electrolyte systems. The review provides insights into the temperature-dependent physical and electrochemical properties of polymers, aiming to expand the temperature range of operation. The review also further summarizes modification strategies for polymer electrolytes suited to diverse temperatures. The final section summarizes the performance of various polymer-based solid-state batteries at different temperatures. Valuable insights and potential future research directions for designing wide-temperature polymer electrolytes are presented based on the differences in battery performance. This information is intended to inspire practical applications of wide-temperature polymer-based solid-state batteries.
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Affiliation(s)
- Long Hu
- School of Materials Science and Engineering, Guangdong Engineering Technology Research Center of Advanced Energy Storage Materials, South China University of Technology, Guangzhou, 510641, China
| | - Xue Gao
- School of Materials Science and Engineering, Guangdong Engineering Technology Research Center of Advanced Energy Storage Materials, South China University of Technology, Guangzhou, 510641, China
| | - Hui Wang
- School of Materials Science and Engineering, Guangdong Engineering Technology Research Center of Advanced Energy Storage Materials, South China University of Technology, Guangzhou, 510641, China
| | - Yun Song
- Department of Materials Science, Fudan University, Shanghai, 200433, China
| | - Yongli Zhu
- Guangdong Huajing New Energy Technology Co. Ltd, Foshan, 528313, China
| | - Zhijun Tao
- Guangdong Huajing New Energy Technology Co. Ltd, Foshan, 528313, China
| | - Bin Yuan
- School of Materials Science and Engineering, Guangdong Engineering Technology Research Center of Advanced Energy Storage Materials, South China University of Technology, Guangzhou, 510641, China
- Guangdong Huajing New Energy Technology Co. Ltd, Foshan, 528313, China
| | - Renzong Hu
- School of Materials Science and Engineering, Guangdong Engineering Technology Research Center of Advanced Energy Storage Materials, South China University of Technology, Guangzhou, 510641, China
- Guangdong Huajing New Energy Technology Co. Ltd, Foshan, 528313, China
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, China
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114
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Chikkatti BS, Kanaki LS, Sajjan AM, Banapurmath NR, Umarfarooq MA, Hosmath RS, Badruddin IA, Arabi AIA, Kamangar S. Exploring the Electrochemical Performance of Molybdenum Disulfide Nanoparticles Entrenched in Miscible Poly(methyl methacrylate)-Poly(lactic acid) Blends as Freestanding Electrodes for Supercapacitors. Polymers (Basel) 2024; 16:2184. [PMID: 39125210 PMCID: PMC11314221 DOI: 10.3390/polym16152184] [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: 06/27/2024] [Revised: 07/26/2024] [Accepted: 07/29/2024] [Indexed: 08/12/2024] Open
Abstract
The focus of the study in this article is analyzing the electrochemical properties of molybdenum disulfide on miscible poly(methyl methacrylate)-poly(lactic acid) blends for supercapacitors. The interaction between molybdenum disulfide and miscible poly(methyl methacrylate)-poly(lactic acid) blends, affinity toward water, surface morphology, and mechanical properties are inspected by Fourier transform infrared spectroscopy, water contact angle, scanning electron microscopy, and universal testing machine, respectively. Among the developed membranes, 0.75 wt% of molybdenum disulfide on poly(methyl methacrylate)-poly(lactic acid) shows better electrochemical performances. It exhibits a maximum specific capacitance of 255.5 F g-1 at a current density of 1.00 mA g-1, maximum energy density of 22.7 Wh kg-1, and maximum power density of 360 W kg-1. A cycle study reveals 92% capacitance retention after 2500 cycles. The designed supercapacitor device shows a maximum specific capacitance of 1240 μF g-1 at a current density of 0.5 μA g-1, maximum energy density of 43 μWh kg-1, and maximum power density of 700 μW kg-1. Flexible membranes of molybdenum disulfide are expected to be a potent combination for supercapacitor applications.
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Affiliation(s)
- Bipin S. Chikkatti
- Department of Chemistry, KLE Technological University, Hubballi 580031, India
| | - Lata S. Kanaki
- Centre of Excellence in Material Science, School of Mechanical Engineering, KLE Technological University, Hubballi 580031, India
| | - Ashok M. Sajjan
- Department of Chemistry, KLE Technological University, Hubballi 580031, India
- Centre of Excellence in Material Science, School of Mechanical Engineering, KLE Technological University, Hubballi 580031, India
| | - Nagaraj R. Banapurmath
- Centre of Excellence in Material Science, School of Mechanical Engineering, KLE Technological University, Hubballi 580031, India
| | - M. A. Umarfarooq
- Centre of Excellence in Material Science, School of Mechanical Engineering, KLE Technological University, Hubballi 580031, India
| | - R. S. Hosmath
- Centre of Excellence in Material Science, School of Mechanical Engineering, KLE Technological University, Hubballi 580031, India
| | - Irfan Anjum Badruddin
- Mechanical Engineering Department, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia
| | - Amir Ibrahim Ali Arabi
- Mechanical Engineering Department, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia
| | - Sarfaraz Kamangar
- Mechanical Engineering Department, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia
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115
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Wu C, Yin B, Wang P, Chen J, Zhang Y, Feng H, Pang K, Hou D. Tunable Dual Self-Healing Composite Coatings with Self-Assembled Structures Regulated by Janus Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2024; 16:39952-39968. [PMID: 39014541 DOI: 10.1021/acsami.4c06288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
The durability of concrete structures can be enhanced in a convenient and permanent manner through the surface protection of cementitious materials with composite polymer coatings. However, polymer coatings are susceptible to various mechanical and physical deterioration in complex and variable environments. In this paper, the theory of polymer microstructure regulation was employed to improve the sustainability of the protective performance of composite coatings. The self-assembled core-shell structure regulated by amphiphilic Janus nanoparticles is employed to modify the tunable polystyrene acrylate-polysiloxane self-healing coatings. The results demonstrate that the adhesion strength of the prepared self-assembled coating reached 3.7 MPa, which is sufficient to resist the damage to the microstructure of cementitious materials caused by physical erosion, seepage, and ionic corrosion. The self-healing coating, regulated by Janus particles, exhibited a residual creep of only 57.03% and a maximum loss angle tangent of 0.381. Furthermore, the material exhibited a superior shape memory function due to the presence of strong hydrogen bonding. The regulated self-healing coating repaired the polymer structural damage under mechanical and thermal deformation by bridging and filling effects. The coating demonstrated a tensile strength recovery of up to 71.23% in a wetted state, accompanied by a rapid restoration of its electrochemical properties and corrosion resistance. Furthermore, the self-healing emulsion penetrates the substrate defects and forms numerous polymer crystalline particles that effectively fill the microcracks.
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Affiliation(s)
- Cong Wu
- School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China
| | - Bing Yin
- School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China
| | - Pan Wang
- School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China
| | - Jizhou Chen
- Qingdao Municipal Group Co., Ltd., Qingdao 266001, China
| | - Yongmin Zhang
- China Construction Port Group Co., Ltd., Qingdao 266033, China
| | - Haibao Feng
- CCCC First Harbor Consultants Co., Ltd., Tianjin 300221, China
| | - Kai Pang
- China Construction Port Group Co., Ltd., Qingdao 266033, China
| | - Dongshuai Hou
- School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China
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116
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Kaidar B, Imash A, Smagulova G, Keneshbekova A, Kazhdanbekov R, Yensep E, Akalim D, Lesbayev A. Magnetite-Incorporated 1D Carbon Nanostructure Hybrids for Electromagnetic Interference Shielding. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1291. [PMID: 39120396 PMCID: PMC11314439 DOI: 10.3390/nano14151291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Revised: 07/13/2024] [Accepted: 07/17/2024] [Indexed: 08/10/2024]
Abstract
The increasing reliance on electronic technologies has elevated the urgency of effective electromagnetic interference (EMI) shielding materials. This review explores the development and potential of magnetite-incorporated one-dimensional (1D) carbon nanostructure hybrids, focusing on their unique properties and synthesis methods. By combining magnetite's magnetic properties with the electrical conductivity and mechanical strength of carbon nanostructures such as carbon nanotubes (CNTs) and carbon fibers (CFs), these hybrids offer superior EMI shielding performance. Various synthesis techniques, including solvothermal synthesis, in situ growth, and electrostatic self-assembly, are discussed in detail, highlighting their impact on the structure and properties of the resulting composites. This review also addresses the challenges in achieving homogeneous dispersion of nanofillers and the environmental and economic considerations of large-scale production. The hybrid materials' multifunctionality, including enhanced mechanical strength, thermal stability, and environmental resistance, underscores their suitability for advanced applications in aerospace, electronics, and environmental protection. Future research directions focus on optimizing synthesis processes and exploring new hybrid configurations to further improve electromagnetic properties and practical applicability.
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Affiliation(s)
- Bayan Kaidar
- Department of “General Physics”, Intistute of Energy and Mechanical Engineering Named after A. Burkitbayev, Satbayev University, 22a Satpaev Str., Almaty 050013, Kazakhstan; (B.K.); (A.I.); (R.K.); (E.Y.); (D.A.); (A.L.)
- Institute of Combustion Problems, 172 Bogenbay Batyr Str., Almaty 050012, Kazakhstan;
| | - Aigerim Imash
- Department of “General Physics”, Intistute of Energy and Mechanical Engineering Named after A. Burkitbayev, Satbayev University, 22a Satpaev Str., Almaty 050013, Kazakhstan; (B.K.); (A.I.); (R.K.); (E.Y.); (D.A.); (A.L.)
- Institute of Combustion Problems, 172 Bogenbay Batyr Str., Almaty 050012, Kazakhstan;
- Faculty of Chemistry and Chemical Technology, Al Farabi Kazakh National University, 71 al-Farabi Ave., Almaty 050040, Kazakhstan
| | - Gaukhar Smagulova
- Department of “General Physics”, Intistute of Energy and Mechanical Engineering Named after A. Burkitbayev, Satbayev University, 22a Satpaev Str., Almaty 050013, Kazakhstan; (B.K.); (A.I.); (R.K.); (E.Y.); (D.A.); (A.L.)
- Institute of Combustion Problems, 172 Bogenbay Batyr Str., Almaty 050012, Kazakhstan;
| | - Aruzhan Keneshbekova
- Institute of Combustion Problems, 172 Bogenbay Batyr Str., Almaty 050012, Kazakhstan;
| | - Ramazan Kazhdanbekov
- Department of “General Physics”, Intistute of Energy and Mechanical Engineering Named after A. Burkitbayev, Satbayev University, 22a Satpaev Str., Almaty 050013, Kazakhstan; (B.K.); (A.I.); (R.K.); (E.Y.); (D.A.); (A.L.)
- Faculty of Chemistry and Chemical Technology, Al Farabi Kazakh National University, 71 al-Farabi Ave., Almaty 050040, Kazakhstan
| | - Eleonora Yensep
- Department of “General Physics”, Intistute of Energy and Mechanical Engineering Named after A. Burkitbayev, Satbayev University, 22a Satpaev Str., Almaty 050013, Kazakhstan; (B.K.); (A.I.); (R.K.); (E.Y.); (D.A.); (A.L.)
- Faculty of Chemistry and Chemical Technology, Al Farabi Kazakh National University, 71 al-Farabi Ave., Almaty 050040, Kazakhstan
| | - Doszhan Akalim
- Department of “General Physics”, Intistute of Energy and Mechanical Engineering Named after A. Burkitbayev, Satbayev University, 22a Satpaev Str., Almaty 050013, Kazakhstan; (B.K.); (A.I.); (R.K.); (E.Y.); (D.A.); (A.L.)
| | - Aidos Lesbayev
- Department of “General Physics”, Intistute of Energy and Mechanical Engineering Named after A. Burkitbayev, Satbayev University, 22a Satpaev Str., Almaty 050013, Kazakhstan; (B.K.); (A.I.); (R.K.); (E.Y.); (D.A.); (A.L.)
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117
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Vakhitova L, Kalafat K, Vakhitov R, Drizhd V. Improving the fire-retardant performance of industrial reactive coatings for steel building structures. Heliyon 2024; 10:e34729. [PMID: 39149008 PMCID: PMC11325801 DOI: 10.1016/j.heliyon.2024.e34729] [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: 02/12/2024] [Revised: 06/11/2024] [Accepted: 07/15/2024] [Indexed: 08/17/2024] Open
Abstract
The main aim of this study was to determine key factors that regulate fire-retardant effectiveness of intumescent coatings comprising of ammonium polyphosphate, melamine, pentaerythritol, polymer binder. Fulfillment of the research objectives resulted in the development of a coating with R120 fire resistance. The expected service life of the coating is at least 15 years when applied at Z2 type of environmental conditions (indoor use). It was established that in order to provide fire resistance of around R30 it is advisable to use the styrene-acrylic polymers as binders for both water-based and organic-based intumescent systems. The ratio of target components ammonium polyphosphate/melamine/pentaerythritol in such systems should be close to 2/1/1. The coating thickness is to be 0.4-0.5 mm. To achieve higher fire resistance (R60 or more) the coating should include a vinyl acetate derivative as a binder (copolymers with ethylene or vinylversatate). Target components ratio in this case is to be close to 3.5/1/1.5, while the coating thickness should be kept at 1.6-1.8 mm. If the required class of fire resistance is above R120, coating thickness is usually to be kept above 3.5 mm. In order to achieve higher fire resistance, it is advisable to use nano-clay additives and reinforcing fibers in intumescent compositions. The obtained results were used in the development of intumescent coating, which is produced industrially and provides over R120 fire resistance of steel, which was confirmed in standardized full-scale fire tests.
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Affiliation(s)
- Liubov Vakhitova
- L.M. Litvinenko Institute of Physical-Organic Chemistry and Coal Chemistry of National Academy of Sciences of Ukraine, Kharkivs'ke Shose St., 50, Kyiv, 02000, Ukraine
| | - Kostyantyn Kalafat
- L.M. Litvinenko Institute of Physical-Organic Chemistry and Coal Chemistry of National Academy of Sciences of Ukraine, Kharkivs'ke Shose St., 50, Kyiv, 02000, Ukraine
| | - Ramil Vakhitov
- Kyiv National University of Technologies and Design, Nemyrovycha-Danchenka Street, 2, Kyiv, 01011, Ukraine
| | - Varvara Drizhd
- L.M. Litvinenko Institute of Physical-Organic Chemistry and Coal Chemistry of National Academy of Sciences of Ukraine, Kharkivs'ke Shose St., 50, Kyiv, 02000, Ukraine
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118
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Islam F, Das S, Ashaduzzaman M, Sillman B, Yeapuri P, Nayan MU, Oupický D, Gendelman HE, Kevadiya BD. Development of an extended action fostemsavir lipid nanoparticle. Commun Biol 2024; 7:917. [PMID: 39080401 PMCID: PMC11289258 DOI: 10.1038/s42003-024-06589-5] [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: 11/13/2023] [Accepted: 07/15/2024] [Indexed: 08/02/2024] Open
Abstract
An extended action fostemsavir (FTR) lipid nanoparticle (LNP) formulation prevents human immunodeficiency virus type one (HIV-1) infection. This FTR formulation establishes a drug depot in monocyte-derived macrophages that extend the drug's plasma residence time. The LNP's physicochemical properties improve FTR's antiretroviral activities, which are linked to the drug's ability to withstand fluid flow forces and levels of drug cellular internalization. Each is, in measure, dependent on PEGylated lipid composition and flow rate ratios affecting the size, polydispersity, shape, zeta potential, stability, biodistribution, and antiretroviral efficacy. The FTR LNP physicochemical properties enable the drug-particle's extended actions.
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Affiliation(s)
- Farhana Islam
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Srijanee Das
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Md Ashaduzzaman
- Department of Computer Science, University of Nebraska Omaha, Omaha, NE, 68182, USA
| | - Brady Sillman
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Pravin Yeapuri
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Mohammad Ullah Nayan
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - David Oupický
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA
| | - Howard E Gendelman
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA.
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA.
| | - Bhavesh D Kevadiya
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
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119
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Tian S, Ma W, Li H, Wang C, Xia Y, Lan D, Zhou P, Hu D. Assessment of chemical degradation of epoxy resin binder used in the service of the Qin terracotta warriors. Sci Rep 2024; 14:17572. [PMID: 39080048 PMCID: PMC11289444 DOI: 10.1038/s41598-024-68442-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 07/23/2024] [Indexed: 08/02/2024] Open
Abstract
Since the Qin terracotta warriors were unearthed, polyamide 650 cross-linked E-44 epoxy resin binder has been employed to bond and restore them. In this paper, the chemical aging of the binders service in indoor natural environment during the past 30 years in the terracotta warriors was studied by means of infrared spectroscopy, X-ray photoelectron spectroscopy and thermogravimetric analysis. The results indicated that the binders did not emerge the characteristic peak of carbonyl stretching vibration at 1700 cm-1 in the IR spectra of all determined binders, and their thermal decomposition curves did not emerge any abnormal changes, and the thermal decomposition mainly occurred above 300 °C. There are evident ceramic grains attached to the surface of the binders being peeled off for sampling. These results that the binders service in the Qin terracotta warriors did not exhibit an observable chemical aging and still has strong adhesion. Generally, discrepancies were observed between natural aging and accelerated artificial aging due to the ineffectiveness of the latter to reproduce the effects of complex weather conditions. Compared to artificially accelerated aging, the evaluation results in a long-term natural aging of the binder which is used for restoration of the life-size Qin terracotta warriors, providing in the present investigation, are more reliable in terms of predicting the safety of restored terracotta warriors.
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Affiliation(s)
- Siyu Tian
- Engineering Research Center of Historical and Cultural Heritage Protection, Ministry of Education, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710062, China
| | - Wenhua Ma
- Engineering Research Center of Historical and Cultural Heritage Protection, Ministry of Education, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710062, China
| | - Hua Li
- Emperor Qin Shihuang's Mausoleum Site Museum, Lintong, Xi'an, 710600, China
| | - Chunyan Wang
- Emperor Qin Shihuang's Mausoleum Site Museum, Lintong, Xi'an, 710600, China
| | - Yin Xia
- Emperor Qin Shihuang's Mausoleum Site Museum, Lintong, Xi'an, 710600, China
| | - Desheng Lan
- Emperor Qin Shihuang's Mausoleum Site Museum, Lintong, Xi'an, 710600, China
| | - Ping Zhou
- Emperor Qin Shihuang's Mausoleum Site Museum, Lintong, Xi'an, 710600, China.
| | - Daodao Hu
- Engineering Research Center of Historical and Cultural Heritage Protection, Ministry of Education, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710062, China.
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Rajendra
Babu Kalai Arasi A, Bengtsson J, Haque M, Theliander H, Enoksson P, Lundgren P. Influence of Hardwood Lignin Blending on the Electrical and Mechanical Properties of Cellulose Based Carbon Fibers. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2024; 12:11206-11217. [PMID: 39091924 PMCID: PMC11289755 DOI: 10.1021/acssuschemeng.4c02052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 06/20/2024] [Accepted: 06/20/2024] [Indexed: 08/04/2024]
Abstract
Carbon fibers (CFs) are fabricated by blending hardwood kraft lignin (HKL) and cellulose. Various compositions of HKL and cellulose in blended solutions are air-gap spun in 1-ethyl-3-methylimidazolium acetate (EMIM OAc), resulting in the production of virtually bead-free quality fibers. The synthesized HKL-cellulose fibers are thermostabilized and carbonized to achieve CFs, and consequently their electrical and mechanical properties are evaluated. Remarkably, fibers with the highest lignin content (65%) exhibited an electrical conductivity of approximately 42 S/cm, surpassing that of cellulose (approximately 15 S/cm). Moreover, the same fibers demonstrated significantly improved tensile strength (∼312 MPa), showcasing a 5-fold increase compared to pure cellulose while maintaining lower stiffness. Comprehensive analyses, including Auger electron spectroscopy and wide-angle X-ray scattering, show a heterogeneous skin-core morphology in the fibers revealing a higher degree of preferred orientation of carbon components in the skin compared to the core. The incorporation of lignin in CFs leads to increased graphitization, enhanced tensile strength, and a unique skin-core structure, where the skin's graphitized cellulose and lignin contribute stiffness, while the predominantly lignin-rich core enhances carbon content, electrical conductivity, and strength.
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Affiliation(s)
- Azega Rajendra
Babu Kalai Arasi
- Department
of Microtechnology and Nanoscience, Chalmers
University of Technology, 41296 Göteborg, Sweden
- Wallenberg
Wood Science Center, 100
44 Stockholm, Sweden
| | | | - Mazharul Haque
- Department
of Microtechnology and Nanoscience, Chalmers
University of Technology, 41296 Göteborg, Sweden
| | - Hans Theliander
- Department
of Chemistry and Chemical Engineering, Chalmers
University of Technology, 41296 Göteborg, Sweden
- Wallenberg
Wood Science Center, 100
44 Stockholm, Sweden
| | | | - Per Lundgren
- Department
of Microtechnology and Nanoscience, Chalmers
University of Technology, 41296 Göteborg, Sweden
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121
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Yoo JU, Kim DH, Choi TM, Jung ES, Lee HR, Lee CY, Pyo SG. Advancements in Flexible Nanogenerators: Polyvinylidene Fluoride-Based Nanofiber Utilizing Electrospinning. Molecules 2024; 29:3576. [PMID: 39124980 PMCID: PMC11313764 DOI: 10.3390/molecules29153576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Revised: 07/25/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024] Open
Abstract
With the gradual miniaturization of electronic devices and the increasing interest in wearable devices, flexible microelectronics is being actively studied. Owing to the limitations of existing battery systems corresponding to miniaturization, there is a need for flexible alternative power sources. Accordingly, energy harvesting from surrounding environmental systems using fluorinated polymers with piezoelectric properties has received significant attention. Among them, polyvinylidene fluoride (PVDF) and PVDF co-polymers have been researched as representative organo-piezoelectric materials because of their excellent piezoelectric properties, mechanical flexibility, thermal stability, and light weight. Electrospinning is an effective method for fabricating nanofibrous meshes with superior surface-to-volume ratios from polymer solutions. During electrospinning, the polymer solution is subjected to mechanical stretching and in situ poling, corresponding to an external strong electric field. Consequently, the fraction of the piezoelectric β-phase in PVDF can be improved by the electrospinning process, and enhanced harvesting output can be realized. An overview of electrospun piezoelectric fibrous meshes composed of PVDF or PVDF co-polymers to be utilized is presented, and the recent progress in enhancement methods for harvesting output, such as fiber alignment, doping with various nanofillers, and coaxial fibers, is discussed. Additionally, other applications of these meshes as sensors are reviewed.
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Affiliation(s)
| | | | | | | | | | | | - Sung-Gyu Pyo
- School of Integrative Engineering, Chung-Ang University, 84, Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea; (J.-U.Y.); (D.-H.K.); (T.-M.C.); (E.-S.J.); (H.-R.L.); (C.-Y.L.)
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122
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Wu Y, Tang H, Kang L, Li H, Jiang N. A Two-Layer Graphene Nonwoven Fabric for Effective Electromagnetic Interference Shielding. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3747. [PMID: 39124411 PMCID: PMC11313089 DOI: 10.3390/ma17153747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 07/21/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024]
Abstract
Rapid advancements and proliferation of electronic devices in the past decades have significantly intensified electromagnetic interference (EMI) issues, driving the demand for more effective shielding materials. Herein, we introduce a novel two-layer graphene nonwoven fabric (2-gNWF) that shows excellent EMI shielding properties. The 2-gNWF fabric comprises a porous fibrous upper layer and a dense conductive film-like lower layer, specifically designed to enhance EMI shielding through the combined mechanisms of reflection, multiple internal reflections, and absorption of electromagnetic waves. The 2-gNWF exhibits a remarkable EMI shielding effectiveness (SE) of 80 dB while maintaining an impressively low density of 0.039 g/cm3, surpassing the performance of many existing graphene-based materials. The excellent EMI shielding performance of 2-gNWF is attributed to the multiple interactions of incident electromagnetic waves with its highly conductive network and porous structure, leading to efficient energy dissipation. The combination of high EMI SE and low density makes 2-gNWF ideal for applications that require lightweight yet effective shielding properties, demonstrating the significant potential for advanced EMI shielding applications.
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Affiliation(s)
- Ying Wu
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Haijun Tang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Liying Kang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Hongfu Li
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Naisheng Jiang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
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123
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Xiong D, Ruan P, Li Z, Yi W, Wang J. A General Strategy for Sustainable 3D Printing Based on A Multifunctional Photoinitiator. Angew Chem Int Ed Engl 2024; 63:e202406047. [PMID: 38739107 DOI: 10.1002/anie.202406047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/08/2024] [Accepted: 05/13/2024] [Indexed: 05/14/2024]
Abstract
A multifunctional photoinitiator is presented, offering precise control over light-induced polymerization initiation at 450 nm and material degradation at 365 nm. This is accomplished by covalently linking photoactive bis(acyl)phosphane oxide and photocleavable o-nitrobenzyl ether moieties onto the surface of γ-cyclodextrin. Upon degradation, the resulting linear polymers can be easily re-dissolved in their corresponding monomer and re-cured, exhibiting superior mechanical properties compared to the pristine material. Moreover, this photoinitiator enables the successful 3D printing of intricate and precise structures, representing a promising general strategy for developing recyclable photoresins for 3D printing applications.
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Affiliation(s)
- Dajun Xiong
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology (NJUST), Nanjing, 210094, China
| | - Pengfei Ruan
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology (NJUST), Nanjing, 210094, China
| | - Zongan Li
- Jiangsu Key Laboratory of 3D Printing Equipment and Manufacturing School of Electrical and Automation Engineering, Nanjing Normal University, Nanjing, 210023, China
| | - Wenbin Yi
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology (NJUST), Nanjing, 210094, China
| | - Jieping Wang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology (NJUST), Nanjing, 210094, China
- Jiangsu Key Laboratory of 3D Printing Equipment and Manufacturing School of Electrical and Automation Engineering, Nanjing Normal University, Nanjing, 210023, China
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124
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Lebedeva EA, Ivanova EV, Trukhinov DK, Istomina TS, Knyazev NS, Malkin AI, Chechetkin VA, Korotkov AN, Balasoiu M, Astaf’eva SA. Electrophysical Characteristics of Acrylonitrile Butadiene Styrene Composites Filled with Magnetite and Carbon Fiber Fillers. Polymers (Basel) 2024; 16:2153. [PMID: 39125178 PMCID: PMC11314315 DOI: 10.3390/polym16152153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/19/2024] [Accepted: 07/23/2024] [Indexed: 08/12/2024] Open
Abstract
With the rapid development of wireless communication technologies and the miniaturization trend in the electronics industry, the reduction of electromagnetic interference has become an important issue. To solve this problem, a lot of attention has been focused on polymer composites with combined functional fillers. In this paper, we report a method for creating an acrylonitrile butadiene styrene (ABS) plastic composite with a low amount of conductive carbon and magnetic fillers preparation. Also, we investigate the mechanical, thermophysical, and electrodynamic characteristics of the resulting composites. Increasing the combined filler amount in the ABS composite from 1 to 5 wt % leads to a composite conductivity growth of almost 50 times. It is necessary to underline the temperature decrease of 5 wt % mass loss and, accordingly, the composite heat resistance reduction with an increase in the combined filler from 1 to 5 wt %, while the thermal conductivity remains almost constant. It was established that electrodynamic and physical-mechanical characteristics depend on the agglomeration of fillers. This work is expected to reveal the potential of combining commercially available fillers to construct effective materials with good electromagnetic interference (EMI) protection using mass production methods (extrusion and injection molding).
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Affiliation(s)
- Elena A. Lebedeva
- “Institute of Technical Chemistry of UB RAS”—Affiliation of Perm Federal Research Centre of Ural Branch of Russian Academy of Sciences, Akademika Koroleva str., 3, Perm 614013, Russia; (E.A.L.); (D.K.T.)
| | - Elena V. Ivanova
- “Institute of Technical Chemistry of UB RAS”—Affiliation of Perm Federal Research Centre of Ural Branch of Russian Academy of Sciences, Akademika Koroleva str., 3, Perm 614013, Russia; (E.A.L.); (D.K.T.)
| | - Denis K. Trukhinov
- “Institute of Technical Chemistry of UB RAS”—Affiliation of Perm Federal Research Centre of Ural Branch of Russian Academy of Sciences, Akademika Koroleva str., 3, Perm 614013, Russia; (E.A.L.); (D.K.T.)
| | - Tatiana S. Istomina
- “Institute of Technical Chemistry of UB RAS”—Affiliation of Perm Federal Research Centre of Ural Branch of Russian Academy of Sciences, Akademika Koroleva str., 3, Perm 614013, Russia; (E.A.L.); (D.K.T.)
| | - Nikolay S. Knyazev
- Engineering School of Information Technologies, Telecommunications and Control Systems, Ural Federal University, Mira str., 19, Yekaterinburg 620002, Russia (A.I.M.)
| | - Alexander I. Malkin
- Engineering School of Information Technologies, Telecommunications and Control Systems, Ural Federal University, Mira str., 19, Yekaterinburg 620002, Russia (A.I.M.)
| | - Victor A. Chechetkin
- Engineering School of Information Technologies, Telecommunications and Control Systems, Ural Federal University, Mira str., 19, Yekaterinburg 620002, Russia (A.I.M.)
| | - Alexey N. Korotkov
- Engineering School of Information Technologies, Telecommunications and Control Systems, Ural Federal University, Mira str., 19, Yekaterinburg 620002, Russia (A.I.M.)
| | - Maria Balasoiu
- Joint Institute for Nuclear Research, Dubna 141980, Russia;
- “Horia Hulubei” National Institute of Physics and Nuclear Engineering, 077125 Magurele, Romania
- R&D CSMBA, Faculty of Physics, West University of Timișoara, 300223 Timișoara, Romania
| | - Svetlana A. Astaf’eva
- “Institute of Technical Chemistry of UB RAS”—Affiliation of Perm Federal Research Centre of Ural Branch of Russian Academy of Sciences, Akademika Koroleva str., 3, Perm 614013, Russia; (E.A.L.); (D.K.T.)
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125
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Li Y, Jiang J, Huang H, Wang Z, Wang L, Chen B, Zhai W. Comparative Study of the Foaming Behavior of Ethylene-Vinyl Acetate Copolymer Foams Fabricated Using Chemical and Physical Foaming Processes. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3719. [PMID: 39124388 PMCID: PMC11313140 DOI: 10.3390/ma17153719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2024] [Revised: 07/22/2024] [Accepted: 07/24/2024] [Indexed: 08/12/2024]
Abstract
Ethylene-vinyl acetate copolymer (EVA), a crucial elastomeric resin, finds extensive application in the footwear industry. Conventional chemical foaming agents, including azodicarbonamide and 4,4'-oxybis(benzenesulfonyl hydrazide), have been identified as environmentally problematic. Hence, this study explores the potential of physical foaming of EVA using supercritical nitrogen as a sustainable alternative, garnering considerable interest in both academia and industry. The EVA formulations and processing parameters were optimized and EVA foams with densities between 0.15 and 0.25 g/cm3 were produced. Key findings demonstrate that physical foaming not only reduces environmental impact but also enhances product quality by a uniform cell structure with small cell size (50-100 μm), a wide foaming temperature window (120-180 °C), and lower energy consumption. The research further elucidates the mechanisms of cell nucleation and growth within the crosslinked EVA network, highlighting the critical role of blowing agent dispersion and localized crosslinking around nucleated cells in defining the foam's cellular morphology. These findings offer valuable insights for producing EVA foams with a more controllable cellular structure, utilizing physical foaming techniques.
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Affiliation(s)
| | - Junjie Jiang
- School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China; (Y.L.); (H.H.); (Z.W.); (L.W.); (B.C.)
| | | | | | | | | | - Wentao Zhai
- School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China; (Y.L.); (H.H.); (Z.W.); (L.W.); (B.C.)
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126
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Rando G, Scalone E, Sfameni S, Plutino MR. Functional Bio-Based Polymeric Hydrogels for Wastewater Treatment: From Remediation to Sensing Applications. Gels 2024; 10:498. [PMID: 39195027 DOI: 10.3390/gels10080498] [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: 07/01/2024] [Revised: 07/23/2024] [Accepted: 07/25/2024] [Indexed: 08/29/2024] Open
Abstract
In recent years, many researchers have focused on designing hydrogels with specific functional groups that exhibit high affinity for various contaminants, such as heavy metals, organic pollutants, pathogens, or nutrients, or environmental parameters. Novel approaches, including cross-linking strategies and the use of nanomaterials, have been employed to enhance the structural integrity and performance of the desired hydrogels. The evolution of these hydrogels is further highlighted, with an emphasis on fine-tuning features, including water absorption capacity, environmental pollutant/factor sensing and selectivity, and recyclability. Furthermore, this review investigates the emerging topic of stimuli-responsive smart hydrogels, underscoring their potential in both sorption and detection of water pollutants. By critically assessing a wide range of studies, this review not only synthesizes existing knowledge, but also identifies advantages and limitations, and describes future research directions in the field of chemically engineered hydrogels for water purification and monitoring with a low environmental impact as an important resource for chemists and multidisciplinary researchers, leading to improvements in sustainable water management technology.
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Affiliation(s)
- Giulia Rando
- Institute for the Study of Nanostructured Materials, ISMN-CNR, URT of Messina, c/o Department of ChiBioFarAm, University of Messina, 98166 Messina, Italy
| | - Elisabetta Scalone
- Institute for the Study of Nanostructured Materials, ISMN-CNR, URT of Messina, c/o Department of ChiBioFarAm, University of Messina, 98166 Messina, Italy
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences (ChiBioFarAm), University of Messina, 98166 Messina, Italy
| | - Silvia Sfameni
- Institute for the Study of Nanostructured Materials, ISMN-CNR, URT of Messina, c/o Department of ChiBioFarAm, University of Messina, 98166 Messina, Italy
| | - Maria Rosaria Plutino
- Institute for the Study of Nanostructured Materials, ISMN-CNR, URT of Messina, c/o Department of ChiBioFarAm, University of Messina, 98166 Messina, Italy
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127
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Tian F, Huang H, Li Y, Zhai W. Fabrication of Soft Biodegradable Foam with Improved Shrinkage Resistance and Thermal Stability. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3712. [PMID: 39124376 PMCID: PMC11313563 DOI: 10.3390/ma17153712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Revised: 07/20/2024] [Accepted: 07/24/2024] [Indexed: 08/12/2024]
Abstract
The soft PBAT foam shows good flexibility, high elasticity, degradable nature, and it can be used as an environmental-friendly candidate for EVA and PU foams. Unfortunately, there are few reports on the application of PBAT as a soft foam. In this study, PBAT foam was fabricated by a pressure quenching method using CO2 as the blowing agent. A significant volume shrinkage of about 81% occurred, where the initial PBAT foam had an extremely high expansion ratio, of about 31 times. A 5-10 wt% PBS with high crystallinity was blended, and N2 with low gas solubility and diffusivity was mixed, with the aim of resisting foam shrinkage and preparing PBAT with a high final expansion ratio of 14.7 times. The possible mechanism behind this phenomenon was established, and the increased matrix modulus and decreased pressure difference within and outside the cell structure were the main reasons for the shrinkage resistance. The properties of PBAT and PBAT/PBS foams with a density of 0.1 g/cm3 were measured, based on the requirements for shoe applications. The 5-10 wt% PBS loading presented advantages in reducing thermal shrinkage at 75 °C/40 min, without compromising the hardness, elasticity, and the compression set, which ensures that PBAT/PBS foams have good prospects for use as soft foams.
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Affiliation(s)
| | | | | | - Wentao Zhai
- School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China; (F.T.); (H.H.); (Y.L.)
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128
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Cai C, Li W, Zhang X, Cheng B, Chen S, Zhang Y. Natural Polymer-Based Hydrogel Dressings for Wound Healing. Adv Wound Care (New Rochelle) 2024. [PMID: 38623809 DOI: 10.1089/wound.2024.0024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024] Open
Abstract
Significance: Acute wounds such as severe burns and chronic wounds like diabetic ulcers present a significant threat to human health. Wound dressings made from natural polymers offer inherent properties that effectively enhance wound healing outcomes and reduce healing time. Recent Advances: Numerous innovative hydrogels are being developed and translated to the clinic to successfully treat various wound types. This underscores the substantial potential of hydrogels in the future wound care market. Economically, annual sales of wound care products are projected to reach $15-22 billion by 2024. Critical Issues: While chitosan-, cellulose-, and collagen-based hydrogel dressings are currently commercially available, scaling-up and manufacturing hydrogels for commercial products remain a challenging process. In addition, ensuring the sterility and stability of the chemical or biological components comprising the hydrogel is a critical consideration. Future Directions: In light of the persistent increase in wound fatalities and the resulting economic and social impacts, as well as the importance of educating the public about dietary health and disease, there should be increased investment in new wound care dressings, particularly hydrogels derived from natural products. With numerous researchers dedicated to advancing preclinical hydrogels, the future holds promise for more innovative and more personalized hydrogel wound dressings.
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Affiliation(s)
- Chao Cai
- Department of Burn and Plastic Surgery, Affiliated Hospital of Nantong University, Nantong, China
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
| | - Wanqian Li
- Department of Burn and Plastic Surgery, Affiliated Hospital of Nantong University, Nantong, China
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
| | - Xiyue Zhang
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
- Macau University of Science and Technology, Taipa, China
| | - Biao Cheng
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command of PLA, Guangzhou, China
| | - Shixuan Chen
- Department of Burn and Plastic Surgery, Affiliated Hospital of Nantong University, Nantong, China
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
| | - Yi Zhang
- Department of Burn and Plastic Surgery, Affiliated Hospital of Nantong University, Nantong, China
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129
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Zhao KY, Sun C, Huang ML, Luo CL, Wang M. Constructing multi-layer heterogeneous interfaces in liquid metal graphite hybrid powder: Towards microwave absorption enhancement. J Colloid Interface Sci 2024; 677:79-89. [PMID: 39083894 DOI: 10.1016/j.jcis.2024.07.189] [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: 06/10/2024] [Revised: 07/17/2024] [Accepted: 07/23/2024] [Indexed: 08/02/2024]
Abstract
Carbon based materials are widely used in the preparation of microwave absorption materials due to their low density, high attenuation loss and large specific surface area. However, their high conductivity usually leads to high reflection loss. In this study, multi-layer heterogeneous interfaces were constructed in liquid metal graphite hybrid powder to reduce reflection loss and enhance microwave absorption performance. Gallium oxide (Ga2O3) layer was formed in Ga coated graphite powder to improve impedance matching and attenuation constant via an annealing treatment. Specifically, the hybrid particles with 50 wt% Ga and being annealed at 120 °C for 2 h have a minimum reflection loss (RLmin) value of -42.68 dB and a maximum effective absorption bandwidth (EAB) of 4.11 GHz at a thickness of 3.3 mm. The hybrid particles not only have multi-layer structures with different electrical conductivity, but also form heterojunctions between different interfaces, which can further enhance dipole and interfacial polarization.
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Affiliation(s)
- Kun-Yan Zhao
- Chongqing Key Laboratory of Soft-Matter Material Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Chang Sun
- Chongqing Key Laboratory of Soft-Matter Material Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ming-Lu Huang
- Chongqing Key Laboratory of Soft-Matter Material Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Cheng-Long Luo
- Chongqing Key Laboratory of Soft-Matter Material Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ming Wang
- Chongqing Key Laboratory of Soft-Matter Material Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China; Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory (Rongjiang Laboratory), Jieyang 515200, China.
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130
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Kontiza A, Kartsonakis IA. Smart Composite Materials with Self-Healing Properties: A Review on Design and Applications. Polymers (Basel) 2024; 16:2115. [PMID: 39125142 PMCID: PMC11314374 DOI: 10.3390/polym16152115] [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: 06/19/2024] [Revised: 07/16/2024] [Accepted: 07/24/2024] [Indexed: 08/12/2024] Open
Abstract
Research on self-healing materials spans multiple academic disciplines and employs a variety of methodologies. Nature has been a major source of inspiration for developing self-healing materials and will likely continue to inspire innovative ideas in this field. This review article covers the principles of self-healing mechanisms, focusing on both autonomous and non-autonomous procedures. It explores both intrinsic and extrinsic self-healing abilities by considering their components, structures, and design. Additionally, a detailed analysis of the application of these materials across various sectors is provided, including aerospace, automotive, marine, energy, medical and healthcare, military, and construction. Finally, the review paper highlights the advancements in encapsulation technologies for microcapsules, their thermal stability, their mechanical properties, and the compatibility of healing agents with the matrix, which play a crucial role in the effectiveness of self-healing processes.
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Affiliation(s)
| | - Ioannis A. Kartsonakis
- Laboratory of Physical Chemistry, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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131
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Harb SV, Kolanthai E, Pinto LA, Beatrice CAG, Bezerra EDOT, Backes EH, Costa LC, Seal S, Pessan LA. Additive manufacturing of bioactive and biodegradable poly (lactic acid)-tricalcium phosphate scaffolds modified with zinc oxide for guided bone tissue repair. Biomed Mater 2024; 19:055018. [PMID: 38986475 DOI: 10.1088/1748-605x/ad61a9] [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: 04/16/2024] [Accepted: 07/10/2024] [Indexed: 07/12/2024]
Abstract
Bioactive and biodegradable scaffolds that mimic the natural extracellular matrix of bone serve as temporary structures to guide new bone tissue growth. In this study, 3D-printed scaffolds composed of poly (lactic acid) (PLA)-tricalcium phosphate (TCP) (90-10 wt.%) were modified with 1%, 5%, and 10 wt.% of ZnO to enhance bone tissue regeneration. A commercial chain extender named Joncryl was incorporated alongside ZnO to ensure the printability of the composites. Filaments were manufactured using a twin-screw extruder and subsequently used to print 3D scaffolds via fused filament fabrication (FFF). The scaffolds exhibited a homogeneous distribution of ZnO and TCP particles, a reproducible structure with 300 μm pores, and mechanical properties suitable for bone tissue engineering, with an elastic modulus around 100 MPa. The addition of ZnO resulted in enhanced surface roughness on the scaffolds, particularly for ZnO microparticles, achieving values up to 241 nm. This rougher topography was responsible for enhancing protein adsorption on the scaffolds, with an increase of up to 85% compared to the PLA-TCP matrix. Biological analyses demonstrated that the presence of ZnO promotes mesenchymal stem cell (MSC) proliferation and differentiation into osteoblasts. Alkaline phosphatase (ALP) activity, an important indicator of early osteogenic differentiation, increased up to 29%. The PLA-TCP composite containing 5% ZnO microparticles exhibited an optimized degradation rate and enhanced bioactivity, indicating its promising potential for bone repair applications.
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Affiliation(s)
- Samarah V Harb
- Department of Materials Engineering (DEMa), Federal University of Sao Carlos (UFSCar), São Carlos, SP, Brazil
- Advanced Materials Processing and Analysis Center, Department of Materials Science and Engineering, University of Central Florida, Orlando, FL, United States of America
| | - Elayaraja Kolanthai
- Advanced Materials Processing and Analysis Center, Department of Materials Science and Engineering, University of Central Florida, Orlando, FL, United States of America
| | - Leonardo A Pinto
- Graduate Program in Materials Science and Engineering, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
| | - Cesar A G Beatrice
- Department of Materials Engineering (DEMa), Federal University of Sao Carlos (UFSCar), São Carlos, SP, Brazil
| | - Ewerton de O T Bezerra
- Graduate Program in Materials Science and Engineering, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
| | - Eduardo H Backes
- Department of Materials Engineering (DEMa), Federal University of Sao Carlos (UFSCar), São Carlos, SP, Brazil
- Graduate Program in Materials Science and Engineering, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
| | - Lidiane C Costa
- Department of Materials Engineering (DEMa), Federal University of Sao Carlos (UFSCar), São Carlos, SP, Brazil
- Graduate Program in Materials Science and Engineering, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
| | - Sudipta Seal
- Advanced Materials Processing and Analysis Center, Department of Materials Science and Engineering, University of Central Florida, Orlando, FL, United States of America
- Biionix Cluster, College of Medicine, University of Central Florida, Orlando, FL, United States of America
| | - Luiz A Pessan
- Department of Materials Engineering (DEMa), Federal University of Sao Carlos (UFSCar), São Carlos, SP, Brazil
- Graduate Program in Materials Science and Engineering, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
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132
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Xia J, Li S, Gao R, Zhang Y, Wang L, Ye Y, Cao C, Xue H. Bio-Based Epoxy Vitrimers with Excellent Properties of Self-Healing, Recyclability, and Welding. Polymers (Basel) 2024; 16:2113. [PMID: 39125140 PMCID: PMC11314141 DOI: 10.3390/polym16152113] [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: 06/26/2024] [Revised: 07/16/2024] [Accepted: 07/23/2024] [Indexed: 08/12/2024] Open
Abstract
The development of more recyclable materials is a key requirement for a transition towards a more circular economy. Thanks to exchange reactions, vitrimer, an attractive alternative for recyclable materials, is an innovative class of polymers that is able to change its topology without decreasing its connectivity. In this work, a bisphenol compound (VP) was prepared from saturated cardanol, i.e., 3-pentadecylphenol and vanillyl alcohol. Then, VP was epoxidized to obtain epoxide (VPGE). Finally, VPGE and citric acid (CA) were polymerized in the presence of catalyst TBD to prepare a fully bio-based vitrimer based on transesterification. The results from differential scanning calorimetry (DSC) showed that the VPGE/CA system could be crosslinked at around 163 °C. The cardanol-derived vitrimers had good network rearrangement properties. Meanwhile, because of the dynamic structural elements in the network, the material was endowed with excellent self-healing, welding, and recyclability.
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Affiliation(s)
- Jianrong Xia
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, Fujian Key Laboratory of Functional Marine Sensing Materials, Minjiang University, Fuzhou 350108, China; (J.X.); (S.L.); (R.G.); (Y.Z.); (L.W.); (Y.Y.)
- College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou 350108, China
| | - Shuyun Li
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, Fujian Key Laboratory of Functional Marine Sensing Materials, Minjiang University, Fuzhou 350108, China; (J.X.); (S.L.); (R.G.); (Y.Z.); (L.W.); (Y.Y.)
- College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou 350108, China
| | - Renjin Gao
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, Fujian Key Laboratory of Functional Marine Sensing Materials, Minjiang University, Fuzhou 350108, China; (J.X.); (S.L.); (R.G.); (Y.Z.); (L.W.); (Y.Y.)
| | - Yuchi Zhang
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, Fujian Key Laboratory of Functional Marine Sensing Materials, Minjiang University, Fuzhou 350108, China; (J.X.); (S.L.); (R.G.); (Y.Z.); (L.W.); (Y.Y.)
| | - Liwei Wang
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, Fujian Key Laboratory of Functional Marine Sensing Materials, Minjiang University, Fuzhou 350108, China; (J.X.); (S.L.); (R.G.); (Y.Z.); (L.W.); (Y.Y.)
| | - Yuansong Ye
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, Fujian Key Laboratory of Functional Marine Sensing Materials, Minjiang University, Fuzhou 350108, China; (J.X.); (S.L.); (R.G.); (Y.Z.); (L.W.); (Y.Y.)
| | - Changlin Cao
- College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou 350108, China
| | - Hanyu Xue
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, Fujian Key Laboratory of Functional Marine Sensing Materials, Minjiang University, Fuzhou 350108, China; (J.X.); (S.L.); (R.G.); (Y.Z.); (L.W.); (Y.Y.)
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133
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Ethier J, Antoniuk ER, Brettmann B. Predicting polymer solubility from phase diagrams to compatibility: a perspective on challenges and opportunities. SOFT MATTER 2024; 20:5652-5669. [PMID: 38995233 DOI: 10.1039/d4sm00590b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/13/2024]
Abstract
Polymer processing, purification, and self-assembly have significant roles in the design of polymeric materials. Understanding how polymers behave in solution (e.g., their solubility, chemical properties, etc.) can improve our control over material properties via their processing-structure-property relationships. For many decades the polymer science community has relied on thermodynamic and physics-based models to aid in this endeavor, but all rely on disparate data sets and use-case scenarios. Hence, there are still significant challenges to predict a priori the solubility of a polymer, whether it is for selecting sustainable solvents, obtaining thermodynamic parameters for phase separation, or navigating the coexistence curve. This perspective aims to discuss the different approaches of applying computational tools to predict polymer solubility, with a significant focus on machine learning techniques to capture the rapid progress in that space. We examine challenges and opportunities that remain for creating a comprehensive solubility toolset that can accelerate the design of a broad range of applications including films, membranes, and pharmaceuticals.
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Affiliation(s)
- Jeffrey Ethier
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433, USA
| | - Evan R Antoniuk
- Materials Science Division, Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - Blair Brettmann
- Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA.
- Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
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134
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Šorm D, Blahut J, Bashta B, Císařová I, Vrbková E, Vyskočilová E, Sedláček J. Complex isomerism influencing the textural properties of organometallic [Cu(salen)] porous polymers: paramagnetic solid-state NMR characterization and heterogeneous catalysis. Dalton Trans 2024; 53:12162-12175. [PMID: 38963296 DOI: 10.1039/d4dt01305k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
Although organometallic porous polymer networks are recognized as promising heterogeneous catalysts, the relationship between ligand/monomer geometry and network parameters is usually not well understood due to the lack of atom-resolved characterization methods for the amorphous network matrix. In this work, a series of copper(II) salen-type metal complexes was synthesized, using trans- and cis-1,2-diaminocyclohexane segments, and thoroughly characterized by single-crystal X-ray diffraction and solution- and solid-state NMR spectroscopy. Terminal ethynyl groups of the complexes were then transformed into polyacetylene chains by coordination chain-growth homopolymerization, resulting in highly porous (458-655 m2 g-1) organometallic polymer networks with a copper(II) ion content of about 12 wt%. The presence of paramagnetic copper(II) moieties in these complexes and respective polymer networks required the application of tailored NMR techniques, which together with X-ray crystallography and DFT calculations of the paramagnetic NMR shifts made it possible to investigate the differences in the complex geometry in liquid, powder and crystalline form and compare it with the complex geometry in polymer networks. All prepared organometallic polymer networks were also tested as heterogeneous catalysts for styrene oxidation with uncommonly high substrate conversions and compared with their low-molecular-weight analogues. The high reusability of such heterogeneous polymer-based catalysts was also proven.
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Affiliation(s)
- David Šorm
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2, 128 43, Czech Republic.
| | - Jan Blahut
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 542/2, Prague 6, 160 00, Czech Republic.
| | - Bogdana Bashta
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2, 128 43, Czech Republic.
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2, 128 43, Czech Republic
| | - Eva Vrbková
- Department of Organic Technology, University of Chemistry and Technology Prague, Technická 5, Prague 6, 166 28, Czech Republic
| | - Eliška Vyskočilová
- Department of Organic Technology, University of Chemistry and Technology Prague, Technická 5, Prague 6, 166 28, Czech Republic
| | - Jan Sedláček
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2, 128 43, Czech Republic.
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135
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Abdullah MS, Al-Lohedan HA, Faqihi NA, Al-Maswari BM. Efficient Demulsification of Crude Oil Emulsion Using Novel Sugar-based Surfactant. ACS OMEGA 2024; 9:32144-32152. [PMID: 39072075 PMCID: PMC11270713 DOI: 10.1021/acsomega.4c04299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 06/18/2024] [Accepted: 07/05/2024] [Indexed: 07/30/2024]
Abstract
This study aimed to synthesize ecofriendly and low-cost surfactant-based sugar, HA-ST, under mild conditions and a short route via an opening ring of hexadecylsuccinic anhydride (HA) using starch (ST). HA-ST's chemical structure, thermal behavior, and surface activity were evaluated using Fourier Transform Infrared (FTIR) spectroscopy, thermogravimetric analysis, and a pendant drop technique. The results indicated HA-ST formation, thermal stability, and surface activity. HA-ST's green character, low cost, and surface activity recommended its use as a demulsifier for crude oil emulsions at different affecting parameters such as temperature, seawater ratio (SR), demulsifier concentration, demulsification time (DT), and pH. HA-ST demulsification efficiency (DE) was evaluated and compared with a commercial demulsifier (CD). The results showed improved HA-ST's DE with rising temperature, SR, demulsifier concentration, DT, and pH. The DE of HAST reached 100% at 50% of SR and 250 ppm of demulsifier concentration; the same results were obtained using CD. In contrast, HA-ST gave relatively lower DE at low SR (10%) with a value of 70% than the obtained using CD with a value of 75%. The green character, low cost, and DE of HA-ST make it suitable for demulsifying crude oil emulsions, especially those containing more than 30% seawater, compared with CD, which commonly contains two or more traditional surfactants.
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Affiliation(s)
- Mahmood
M. S. Abdullah
- Department
of Chemistry, College of Science, King Saud
University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Hamad A. Al-Lohedan
- Department
of Chemistry, College of Science, King Saud
University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Noorah A. Faqihi
- Department
of Chemistry, College of Science, King Saud
University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
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136
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Bhutkar S, Millard PE, Preece JA, Zhang Z. Microplastic-Free Microcapsules Using Supramolecular Self-Assembly of Bis-Urea Molecules at an Emulsion Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:14798-14810. [PMID: 38990556 PMCID: PMC11270993 DOI: 10.1021/acs.langmuir.4c00541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 07/04/2024] [Accepted: 07/05/2024] [Indexed: 07/12/2024]
Abstract
Encapsulation technology is well established for entrapping active ingredients within an outer shell for their protection and controlled release. However, many solutions employed industrially use nondegradable cross-linked synthetic polymers for shell formation. To curb rising microplastic pollution, regulatory policies are forcing industries to substitute the use of such intentionally added microplastics with environmentally friendly alternatives. This work demonstrates a one-pot process to make microplastic-free microcapsules using supramolecular self-assembly of bis-ureas. Molecular bis-urea species generated in-situ spontaneously self-assemble at the interface of an oil-in-water emulsion via hydrogen bonding to form a shell held together by noncovalent bonds. In addition, Laponite nanodiscs were introduced in the formulation to restrict aggregation observed during the self-assembly and to reduce the porosity of the shell, leading to well-dispersed microcapsules (mean Sauter diameter d [3,2] ∼ 5 μm) with high encapsulation efficiency (∼99%). Accelerated release tests revealed an increase in characteristic release time of the active by more than an order of magnitude after encapsulation. The mechanical strength parameters of these capsules were comparable to some of the commercial, nondegradable melamine-formaldehyde microcapsules. With mild operating conditions in an aqueous environment, this technology has real potential to offer an industrially viable method for producing microplastic-free microcapsules.
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Affiliation(s)
| | | | - Jon A. Preece
- School
of Chemistry, University of Birmingham, Birmingham B15 2TT, U.K.
| | - Zhibing Zhang
- School
of Chemical Engineering, University of Birmingham, Birmingham B15 2TT, U.K.
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137
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Cai Z, Haque ANMA, Callahan DL, Dhandapani R, Naebe M. Development of bio-composite mulch film from cotton gin wastes: Study of pesticide residue and outdoor stability and degradation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 948:175004. [PMID: 39053547 DOI: 10.1016/j.scitotenv.2024.175004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 07/08/2024] [Accepted: 07/22/2024] [Indexed: 07/27/2024]
Abstract
Non-degradable plastic mulch films used in agriculture are polluting the environment by leaving residues and microplastics in the soil. They are also difficult to recycle due to contamination during their use. Biodegradable mulch films are needed as alternatives so that they can be used effectively during the growing season and later be ploughed to be degraded in soil. However, market-available so-called biodegradable mulch films are very slow to degrade in the natural environment and thus do not fit with crop rotation demands or annual cultivation. In this study, we have developed mulch films from cotton gin trash (CGT) and/or gin motes (GM) in combination with biodegradable polycaprolactone and demonstrated their effectiveness over 3 months in outdoor conditions. Both the stability and degradation behaviours of mulch film samples were observed when they were placed on top of the soil and buried in the soil, respectively. Pesticide residue analysis also was carried out on CGT powder to identify and quantify individual pesticides against a matrix of known pesticides. The mulch films prepared in this study showed comparable and stable mechanical properties compared to commercial biodegradable mulch film, though were much quicker to degrade when buried in the soil. No pesticides were detected in the CGT samples. The films produced were vapour-permeable and may be useful in practical agricultural settings by being able to maintain consistent soil moisture and allowing precipitation to penetrate gradually. The lab-scale production cost for the film was 98.8 AUD/kg, which could be lowered by integrating a continuous film line in large-scale production.
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Affiliation(s)
- Zengxiao Cai
- Institute for Frontier Materials, Deakin University, Geelong, VIC 3216, Australia
| | | | - Damien L Callahan
- School of Life and Environmental Sciences, Deakin University, Burwood, VIC 3125, Australia
| | | | - Maryam Naebe
- Institute for Frontier Materials, Deakin University, Geelong, VIC 3216, Australia.
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138
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Wang Y, Mu A, Wang W, Yang B, Wang J. A Review of Capacity Decay Studies of All-vanadium Redox Flow Batteries: Mechanism and State Estimation. CHEMSUSCHEM 2024; 17:e202301787. [PMID: 38440928 DOI: 10.1002/cssc.202301787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/28/2024] [Accepted: 03/04/2024] [Indexed: 03/06/2024]
Abstract
As a promising large-scale energy storage technology, all-vanadium redox flow battery has garnered considerable attention. However, the issue of capacity decay significantly hinders its further development, and thus the problem remains to be systematically sorted out and further explored. This review provides comprehensive insights into the multiple factors contributing to capacity decay, encompassing vanadium cross-over, self-discharge reactions, water molecules migration, gas evolution reactions, and vanadium precipitation. Subsequently, it analyzes the impact of various battery parameters on capacity. Based on this foundation, the article expounds upon the significance of battery internal state estimation technology. Additionally, the review also summarizes domestic and international mathematical models utilized for simulating capacity decay, serving as a valuable reference for future research endeavors. Finally, through the comparison of traditional experimental methods and mathematical modeling methods, this article offers effective guidance for the future development direction of battery state monitoring. This review generally overview the problems related to the capacity attenuation of all-vanadium flow batteries, which is of great significance for understanding the mechanism behind capacity decay and state monitoring technology of all-vanadium redox flow battery.
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Affiliation(s)
- Yupeng Wang
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, No. 5, Jinhua South Road, Xi'an, P. R. China
| | - Anle Mu
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, No. 5, Jinhua South Road, Xi'an, P. R. China
| | - Wuyang Wang
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, No. 5, Jinhua South Road, Xi'an, P. R. China
| | - Bin Yang
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, No. 5, Jinhua South Road, Xi'an, P. R. China
| | - Jiahui Wang
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, No. 5, Jinhua South Road, Xi'an, P. R. China
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139
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Pereira R, Lins RBE, Lima EFDS, Mainardi MDCAJ, Stamboroski S, Rischka K, Aguiar FHB. Properties of a Dental Adhesive Containing Graphene and DOPA-Modified Graphene. Polymers (Basel) 2024; 16:2081. [PMID: 39065398 PMCID: PMC11280573 DOI: 10.3390/polym16142081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 07/10/2024] [Accepted: 07/11/2024] [Indexed: 07/28/2024] Open
Abstract
Graphene is a promising biomaterial. However, its dispersion in aqueous medium is challenging. This study aimed to modify graphene nanoparticles with L-dopa to improve the properties of experimental dental adhesives. Adhesives were formulated with 0% (control), 0.25%, 0.5%, and 0.75% of graphene, modified or not. Particle modification and dispersion were microscopically assessed. Degree of conversion was tested by Fourier-transform infrared spectroscopy. Flexural strength and modulus of elasticity were evaluated by a 3-point flexural test. Bond strength was tested by shear. To test water sorption/solubility, samples were weighed during hydration and dehydration. Antibacterial activity was tested by Streptococcus mutans colony-forming units quantification. Cytotoxicity on fibroblasts was evaluated through a dentin barrier test. The modification of graphene improved the particle dispersion. Control presented the highest degree of conversion, flexural strength, and bond strength. In degree of conversion, 0.25% of groups were similar to control. In bond strength, groups of graphene modified by L-dopa were similar to Control. The modulus of elasticity was similar between groups. Cytotoxicity and water sorption/solubility decreased as particles increased. Compared to graphene, less graphene modified by L-dopa was needed to promote antibacterial activity. By modifying graphene with L-dopa, the properties of graphene and, therefore, the adhesives incorporated by it were enhanced.
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Affiliation(s)
- Renata Pereira
- Department of Restorative Dentistry, Division of Operative Dentistry, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira 901, Piracicaba 13414-903, SP, Brazil; (R.P.); (M.d.C.A.J.M.); (F.H.B.A.)
- Department of Adhesive Bonding Technology and Surfaces, Fraunhofer Institute for Manufacturing Technology and Advanced Materials (IFAM), Wiener Straße 12, 28359 Bremen, Germany;
| | | | - Elton Faria de Souza Lima
- Federal Institute of Education, Science and Technology of Goiás (IFG—Campus Uruaçu), Rua Formosa, Qd 28 e 29—Loteamento Santana, Uruaçu 76400-000, GO, Brazil;
| | - Maria do Carmo Aguiar Jordão Mainardi
- Department of Restorative Dentistry, Division of Operative Dentistry, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira 901, Piracicaba 13414-903, SP, Brazil; (R.P.); (M.d.C.A.J.M.); (F.H.B.A.)
- Department of Adhesive Bonding Technology and Surfaces, Fraunhofer Institute for Manufacturing Technology and Advanced Materials (IFAM), Wiener Straße 12, 28359 Bremen, Germany;
| | - Stephani Stamboroski
- Department of Adhesive Bonding Technology and Surfaces, Fraunhofer Institute for Manufacturing Technology and Advanced Materials (IFAM), Wiener Straße 12, 28359 Bremen, Germany;
| | - Klaus Rischka
- Department of Restorative Dentistry, Division of Operative Dentistry, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira 901, Piracicaba 13414-903, SP, Brazil; (R.P.); (M.d.C.A.J.M.); (F.H.B.A.)
- Department of Adhesive Bonding Technology and Surfaces, Fraunhofer Institute for Manufacturing Technology and Advanced Materials (IFAM), Wiener Straße 12, 28359 Bremen, Germany;
| | - Flávio Henrique Baggio Aguiar
- Department of Restorative Dentistry, Division of Operative Dentistry, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira 901, Piracicaba 13414-903, SP, Brazil; (R.P.); (M.d.C.A.J.M.); (F.H.B.A.)
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140
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Novák M, Milasheuskaya Y, Srb M, Podzimek Š, Bouška M, Jambor R. Synthesis of star-shaped poly(lactide)s, poly(valerolactone)s and poly(caprolactone)s via ROP catalyzed by N-donor tin(ii) cations and comparison of their wetting properties with linear analogues. RSC Adv 2024; 14:23273-23285. [PMID: 39049884 PMCID: PMC11267256 DOI: 10.1039/d4ra03515a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Accepted: 07/14/2024] [Indexed: 07/27/2024] Open
Abstract
In this study, we report the use of N-coordinated tin(ii) cations [L1→Sn(H2O)][OTf]2·THF (1) and [L1→SnCl][SnCl3] (2) (L1 = 1,2-(C5H4N-2-CH = N)2CH2CH2) as efficient ROP catalysts, which, in combination with benzyl alcohol, afford well-defined linear poly(ε-caprolactone) (PCL) and poly(δ-valerolactones) (PVL) via an activated monomer mechanism (AMM). Thanks to the versatility of complexes 1 and 2 as catalysts, star-shaped PCL, PVL and PLA were also prepared using three-, four-, five- and six-functional alcohols. The number of arms was determined by SEC-MALS-Visco analysis. Spin-coated thin layers of linear and selected six-armed polymers were further studied in terms of their wettability to water. Attention was focused on the influence of the composition and structure of the polymers. Finally, to increase the hydrophobic properties of the studied polymers, stannaboroxines L2(Ph)Sn[(OB-(C6H4-4-CF3))2O] and L2(Ph)Sn[(OB-(C6H4-3,5-CF3)2)2O] (L2 = C6H3-2,6-(Me2NCH2)2) were applied.
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Affiliation(s)
- Miroslav Novák
- Institute of Chemistry and Technology of Macromolecular Materials, Faculty of Chemical Technology, University of Pardubice Studentská 573 53210 Pardubice Czech Republic
| | - Yaraslava Milasheuskaya
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice Studentská 573 53210 Pardubice Czech Republic
| | - Michael Srb
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice Studentská 573 53210 Pardubice Czech Republic
| | - Štěpán Podzimek
- Institute of Chemistry and Technology of Macromolecular Materials, Faculty of Chemical Technology, University of Pardubice Studentská 573 53210 Pardubice Czech Republic
| | - Marek Bouška
- Department of Graphic Arts and Photophysics, Faculty of Chemical Technology, University of Pardubice Studentská 573 53210 Pardubice Czech Republic
| | - Roman Jambor
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice Studentská 573 53210 Pardubice Czech Republic
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141
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Cona C, Bailey K, Barker E. Characterization Methods to Determine Interpenetrating Polymer Network (IPN) in Hydrogels. Polymers (Basel) 2024; 16:2050. [PMID: 39065367 PMCID: PMC11281017 DOI: 10.3390/polym16142050] [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: 05/15/2024] [Revised: 06/26/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
Significant developments have been achieved with the invention of hydrogels. They are effective in many fields such as wastewater treatment, food, agriculture, pharmaceutical applications, and drug delivery. Although hydrogels have been used successfully in these areas, there is a need to make them better for future applications. Interpenetrating polymer networks (IPNs) can be created to make hydrogels more adjustable and suitable for a specific purpose. IPN formation is an innovative approach for polymeric systems. It brings two or more polymer networks together with entanglements. The properties of IPNs are controlled by its chemistry, crosslinking density, and morphology. Therefore, it is necessary to understand characterization methods in order to detect the formation of IPN structure and to develop the properties of hydrogels. In recent studies, IPN structure in hydrogels has been determined via chemical, physical, and mechanical methods such as Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, scanning electron microscopy (SEM), field emission scanning electron microscopy (FESEM), differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), X-ray diffraction (XRD), and rheology methods. In this paper, these characterization methods will be explained, recent studies will be scrutinized, and the effectiveness of these methods to confirm IPN formation will be evaluated.
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Affiliation(s)
| | | | - Elizabeth Barker
- Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Knoxville, TN 37996, USA; (C.C.); (K.B.)
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142
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De J Rivera A, Garcia-Blanco YJ, Quitian-Ardila LH, Germer EM, Franco AT. Visualizing flow dynamics and restart of Carbopol gel solutions in tube and parallel-plates geometries with wall slip. SOFT MATTER 2024. [PMID: 39023447 DOI: 10.1039/d4sm00319e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
The present study examines the impact of slip in Carbopol solutions during the restart flow in pipelines utilizing in situ visualization techniques. Rheological tests were conducted using smooth and hatched parallel plate geometries to obtain the rheological characteristics of the solutions. The behavior of the solutions in the creep tests is compared with those in the experimental unit. Three flow regimes were identified through rheological and experimental setup tests: non-flow, slip, and yielded. The slip regime allowed the establishment of a slip static yield stress value, indicating significant deformation states, and a restart pressure decrease of about 61% when compared to the static yield stress. The flow dynamics under the wall slip effect is captured by velocity profiles, velocity contour maps and velocity gradient. Transient correlations of the scaling law type were determined, with wall slip in proportion to the velocity gradient and wall shear stress. Additionally, the concentration of viscoplastic material in the solution increased the scaling law index. This research seeks to provide valuable findings by quantifying the effects of apparent wall slip through in situ measurements. Such insights are crucial for designing and managing pipeline transport systems that handle yield stress fluids, applicable across various industries including cosmetics, food processing, and the production of waxy oils.
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Affiliation(s)
- Angel De J Rivera
- Academic Department of Mechanics - DAMEC, Postgraduate Program in Mechanical and Materials Engineering - PPGEM, Research Center for Rheology and Non-Newtonian Fluids - CERNN, Federal University of Technology - Paraná - UTFPR, R. Deputado Heitor Alencar Furtado, 5000 - Bloco N - Ecoville, 81280-340 Curitiba, PR, Brazil.
| | - Yamid J Garcia-Blanco
- Academic Department of Mechanics - DAMEC, Postgraduate Program in Mechanical and Materials Engineering - PPGEM, Research Center for Rheology and Non-Newtonian Fluids - CERNN, Federal University of Technology - Paraná - UTFPR, R. Deputado Heitor Alencar Furtado, 5000 - Bloco N - Ecoville, 81280-340 Curitiba, PR, Brazil.
| | - Luis H Quitian-Ardila
- Academic Department of Mechanics - DAMEC, Postgraduate Program in Mechanical and Materials Engineering - PPGEM, Research Center for Rheology and Non-Newtonian Fluids - CERNN, Federal University of Technology - Paraná - UTFPR, R. Deputado Heitor Alencar Furtado, 5000 - Bloco N - Ecoville, 81280-340 Curitiba, PR, Brazil.
| | - Eduardo M Germer
- Academic Department of Mechanics - DAMEC, Postgraduate Program in Mechanical and Materials Engineering - PPGEM, Research Center for Rheology and Non-Newtonian Fluids - CERNN, Federal University of Technology - Paraná - UTFPR, R. Deputado Heitor Alencar Furtado, 5000 - Bloco N - Ecoville, 81280-340 Curitiba, PR, Brazil.
| | - Admilson T Franco
- Academic Department of Mechanics - DAMEC, Postgraduate Program in Mechanical and Materials Engineering - PPGEM, Research Center for Rheology and Non-Newtonian Fluids - CERNN, Federal University of Technology - Paraná - UTFPR, R. Deputado Heitor Alencar Furtado, 5000 - Bloco N - Ecoville, 81280-340 Curitiba, PR, Brazil.
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143
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Aljuaid M, Chang Y, Haddleton DM, Wilson P, Houck HA. Thermoreversible [2 + 2] Photodimers of Monothiomaleimides and Intrinsically Recyclable Covalent Networks Thereof. J Am Chem Soc 2024; 146:19177-19182. [PMID: 38953610 PMCID: PMC11258687 DOI: 10.1021/jacs.4c04193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 06/13/2024] [Accepted: 06/24/2024] [Indexed: 07/04/2024]
Abstract
The development of intrinsically recyclable cross-linked materials remains challenged by the inherently unfavorable chemical equilibrium that dictates the efficiency of the reversible covalent bonding/debonding chemistry. Rather than having to (externally) manipulate the bonding equilibrium, we here introduce a new reversible chemistry platform based on monosubstituted thiomaleimides that can undergo complete and independent light-activated covalent bonding and on-demand thermal debonding above 120 °C. Specifically, repeated bonding/debonding of a small-molecule thiomaleimide [2 + 2] photodimer is demonstrated over five heat/light cycles with full conversion in both directions, thereby regenerating its initial monothiomaleimide constituents. This motivated the synthesis of multifunctional thiomaleimide reagents as precursors for the design of covalently cross-linked networks that display intrinsic switching between a monomeric and polymeric state. The resulting materials are shown to covalently dissociate and depolymerize upon heating both in solution and in bulk, thus transforming the densely photo-cross-linked material back into a viscous liquid. Temperature-regulated photorheology evidenced the intrinsic recyclability of the thiomaleimide-based thermosets during multiple cycles of UV cross-linking and thermal de-cross-linking. The thermally reversible photodimerization of thiomaleimides presents a new addition to the designer playground of dynamic polymer networks, providing interesting opportunities for the reprocessing and closed-loop recycling of covalently cross-linked materials.
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Affiliation(s)
- Mohammed Aljuaid
- Photochemistry
for Materials Group, Department of Chemistry, University of Warwick, Library Road, Coventry CV4 7AL, United Kingdom
- Department
of Chemistry, Turabah University College,
Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Yujing Chang
- Photochemistry
for Materials Group, Department of Chemistry, University of Warwick, Library Road, Coventry CV4 7AL, United Kingdom
| | - David M. Haddleton
- Photochemistry
for Materials Group, Department of Chemistry, University of Warwick, Library Road, Coventry CV4 7AL, United Kingdom
| | - Paul Wilson
- Photochemistry
for Materials Group, Department of Chemistry, University of Warwick, Library Road, Coventry CV4 7AL, United Kingdom
| | - Hannes A. Houck
- Photochemistry
for Materials Group, Department of Chemistry, University of Warwick, Library Road, Coventry CV4 7AL, United Kingdom
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144
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Karl CW, Arstad B, Shamsuyeva M, Lecinski J, Olafsen K, Larsen ÅG, Kubowicz S, Comerford J, Endres HJ. Upgrading and Enhancement of Recycled Polyethylene Terephthalate with Chain Extenders: In-Depth Material Characterization. Ind Eng Chem Res 2024; 63:12277-12287. [PMID: 39045228 PMCID: PMC11261598 DOI: 10.1021/acs.iecr.4c00018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 06/25/2024] [Accepted: 06/27/2024] [Indexed: 07/25/2024]
Abstract
Chemical chain extenders (CEs) can be used to restore the properties of recycled low-molecular-weight polyethylene terephthalate (PET). The aim of this work is to investigate the influence of the type and concentration of the CEs Joncryl and pyromellitic dianhydride (PMDA) on the viscosity and other rheological properties with a unique combination of different methods based on industrial samples originating from recycled PET bottles and trays. The resulting chain-extended thermoplastics were characterized by a combination of differential scanning calorimetry, viscometry, cone plate rheometry, pyrolysis-gas chromatography-mass spectroscopy, optical photothermal infrared spectroscopy, 13C solid-state- and 1H NMR liquid spectroscopy, and size exclusion chromatography. For a recycled PET mixture containing bottle and tray materials, our investigations have shown that a significantly better effect for chain elongation can be achieved with Joncryl compared to PMDA. This can presumably be attributed to water molecules formed during the use of PMDA, which accelerate the degradation of PET. The storage modulus values are therefore significantly higher for the samples with Joncryl compared to PMDA. The results of this study show that chain extension with Joncryl proceeds better compared to the reaction with PMDA.
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Affiliation(s)
- Christian W. Karl
- SINTEF
Materials and Nanotechnology, Polymer and
Composite Materials Group, P.O. Box 124 Blindern, 0314 Oslo, Norway
| | - Bjørnar Arstad
- SINTEF
Process Technology, Process Chemistry and
Functional Materials Group, P.O. Box
124 Blindern, 0314 Oslo, Norway
| | - Madina Shamsuyeva
- IKK—Institute
of Plastics and Circular Economy, Leibniz
Universität Hannover, An der Universität 2, 30823 Garbsen, Germany
| | - Jacek Lecinski
- IKK—Institute
of Plastics and Circular Economy, Leibniz
Universität Hannover, An der Universität 2, 30823 Garbsen, Germany
| | - Kjell Olafsen
- SINTEF
Materials and Nanotechnology, Polymer and
Composite Materials Group, P.O. Box 124 Blindern, 0314 Oslo, Norway
| | - Åge Gellein Larsen
- SINTEF
Materials and Nanotechnology, Polymer and
Composite Materials Group, P.O. Box 124 Blindern, 0314 Oslo, Norway
| | - Stephan Kubowicz
- SINTEF
Materials and Nanotechnology, Polymer and
Composite Materials Group, P.O. Box 124 Blindern, 0314 Oslo, Norway
| | - James Comerford
- SINTEF
Process Technology, Process Chemistry and
Functional Materials Group, P.O. Box
124 Blindern, 0314 Oslo, Norway
| | - Hans-Josef Endres
- IKK—Institute
of Plastics and Circular Economy, Leibniz
Universität Hannover, An der Universität 2, 30823 Garbsen, Germany
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145
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Wu B, Gan N, Lin Y, Zhang Y, Zhang J, Qiu Y, Cao X, Yu J, Matsuyama H. Ion-Selective Transport Promotion Enabled by Angstrom-Scale Nanochannels in Dendrimer-Assembled Polyamide Nanofilm for Efficient Electrodialysis. NANO LETTERS 2024; 24:8650-8657. [PMID: 38949785 DOI: 10.1021/acs.nanolett.4c01997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
The ion permeability and selectivity of membranes are crucial in nanofluidic behavior, impacting industries ranging from traditional to advanced manufacturing. Herein, we demonstrate the engineering of ion-conductive membranes featuring angstrom-scale ion-transport channels by introducing ionic polyamidoamine (PAMAM) dendrimers for ion separation. The exterior quaternary ammonium-rich structure contributes to significant electrostatic charge exclusion due to enhanced local charge density; the interior protoplasmic channels of PAMAM dendrimer are assembled to provide additional degrees of free volume. This facilitates the monovalent ion transfer while maintaining continuity and efficient ion screening. The dendrimer-assembled hybrid membrane achieves high monovalent ion permeance of 2.81 mol m-2 h-1 (K+), reaching excellent mono/multivalent selectivity up to 20.1 (K+/Mg2+) and surpassing the permselectivities of state-of-the-art membranes. Both experimental results and simulating calculations suggest that the impressive ion selectivity arises from the significant disparity in transport energy barrier between mono/multivalent ions, induced by the "exterior-interior" synergistic effects of bifunctional membrane channels.
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Affiliation(s)
- Baolong Wu
- National Engineering Research Center for Comprehensive Utilization of Salt Lake Resources, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Ning Gan
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, Guizhou, China
| | - Yuqing Lin
- National Engineering Research Center for Comprehensive Utilization of Salt Lake Resources, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yiren Zhang
- National Engineering Research Center for Comprehensive Utilization of Salt Lake Resources, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jiayu Zhang
- National Engineering Research Center for Comprehensive Utilization of Salt Lake Resources, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yulong Qiu
- National Engineering Research Center for Comprehensive Utilization of Salt Lake Resources, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xingzhong Cao
- Multi-disciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Jianguo Yu
- National Engineering Research Center for Comprehensive Utilization of Salt Lake Resources, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hideto Matsuyama
- Research Center for Membrane and Film Technology, Department of Chemical Science and Engineering, Kobe University, Kobe 6500034, Japan
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146
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Hou Z, Zhou T, Bai L, Wang W, Chen H, Yang L, Yang H, Wei D. Design of Cellulose Nanocrystal-Based Self-Healing Nanocomposite Hydrogels and Application in Motion Sensing and Sweat Detection. ACS APPLIED MATERIALS & INTERFACES 2024; 16:37087-37099. [PMID: 38958653 DOI: 10.1021/acsami.4c07717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Hydrogels, as flexible materials, have been widely used in the field of flexible sensors. Human sweat contains a variety of biomarkers that can reflect the physiological state of the human body. Therefore, it is of great practical significance and application value to realize the detection of sweat composition and combine it with human motion sensing through a hydrogel. Based on mussel-inspired chemistry, polydopamine (PDA) and gold nanoparticles (AuNPs) were coated on the surface of cellulose nanocrystals (CNCs) to obtain CNC-based nanocomposites (CNCs@PDA-Au), which could simultaneously enhance the mechanical, electrochemical, and self-healing properties of hydrogels. The CNCs@PDA-Au was composited with poly(vinyl alcohol) (PVA) hydrogel to obtain the nanocomposite hydrogel (PVA/CNCs@PDA-Au) by freeze-thaw cycles. The PVA/CNCs@PDA-Au has excellent mechanical strength (7.2 MPa) and self-healing properties (88.3%). The motion sensors designed with PVA/CNCs@PDA-Au exhibited a fast response time (122.9 ms), wide strain sensing range (0-600.0%), excellent stability, and fatigue resistance. With the unique electrochemical redox properties of uric acid, the designed hydrogel sensor successfully realized the detection of uric acid in sweat with a wide detection range (1.0-100.0 μmol/L) and low detection limit (0.42 μmol/L). In this study, the dual detection of human motion and uric acid in sweat was successfully realized by the designed PVA/CNCs@PDA-Au nanocomposite hydrogel.
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Affiliation(s)
- Zehua Hou
- Key Laboratory of High Performance and Functional Polymers in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Tianjun Zhou
- Key Laboratory of High Performance and Functional Polymers in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Liangjiu Bai
- Key Laboratory of High Performance and Functional Polymers in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
- Shandong Baoyuan Biotechnology Co., Ltd., Yantai 264006, China
| | - Wenxiang Wang
- Key Laboratory of High Performance and Functional Polymers in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Hou Chen
- Key Laboratory of High Performance and Functional Polymers in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Lixia Yang
- Key Laboratory of High Performance and Functional Polymers in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Huawei Yang
- Key Laboratory of High Performance and Functional Polymers in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Donglei Wei
- Key Laboratory of High Performance and Functional Polymers in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
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147
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Wei J, Wang Z, Pan F, Yuan T, Fang Y, Gao C, Ping H, Wang Y, Zhao S, Fu Z. Biosustainable Multiscale Transparent Nanocomposite Films for Sensitive Pressure and Humidity Sensors. ACS APPLIED MATERIALS & INTERFACES 2024; 16:37122-37130. [PMID: 38953852 DOI: 10.1021/acsami.4c09157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Light weight, thinness, transparency, flexibility, and insulation are the key indicators for flexible electronic device substrates. The common flexible substrates are usually polymer materials, but their recycling is an overwhelming challenge. Meanwhile, paper substrates are limited in practical applications because of their poor mechanical and thermal stability. However, natural biomaterials have excellent mechanical properties and versatility thanks to their organic-inorganic multiscale structures, which inspired us to design an organic-inorganic nanocomposite film. For this purpose, a bio-inspired multiscale film was developed using cellulose nanofibers with abundant hydrophilic functional groups to assist in dispersing hydroxyapatite nanowires. The thickness of the biosustainable film is only 40 μm, and it incorporates distinctive mechanical properties (strength: 52.8 MPa; toughness: 0.88 MJ m-3) and excellent optical properties (transmittance: 80.0%; haze: 71.2%). Consequently, this film is optimal as a substrate employed for flexible sensors, which can transmit capacitance and resistance signals through wireless Bluetooth, showing an ultrasensitive response to pressure and humidity (for example, responding to finger pressing with 5000% signal change and exhaled water vapor with 4000% signal change). Therefore, the comprehensive performance of the biomimetic multiscale organic-inorganic composite film confers a prominent prospect in flexible electronics devices, food packaging, and plastic substitution.
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Affiliation(s)
- Jingjiang Wei
- Institute for Advanced Study, Chengdu University, Chengdu 610106, P. R. China
| | - Zhikang Wang
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Fei Pan
- Department of Chemistry, University of Basel, Basel 4058, Switzerland
| | - Tianyu Yuan
- Institute for Advanced Study, Chengdu University, Chengdu 610106, P. R. China
| | - Yuanlai Fang
- Institute for Advanced Study, Chengdu University, Chengdu 610106, P. R. China
| | - Caiqin Gao
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Hang Ping
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Yanqing Wang
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Shanyu Zhao
- Laboratory for Building Energy Materials and Components, Swiss Federal Laboratories for Materials Science and Technology (Empa), Dübendorf 8600, Switzerland
| | - Zhengyi Fu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China
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148
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Chahal R, Toomey MD, Kearney LT, Sedova A, Damron JT, Naskar AK, Roy S. Deep-Learning Interatomic Potential Connects Molecular Structural Ordering to the Macroscale Properties of Polyacrylonitrile. ACS APPLIED MATERIALS & INTERFACES 2024; 16:36878-36891. [PMID: 38958640 DOI: 10.1021/acsami.4c04491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Polyacrylonitrile (PAN) is an important commercial polymer, bearing atactic stereochemistry resulting from nonselective radical polymerization. As such, an accurate, fundamental understanding of governing interactions among PAN molecular units is indispensable for advancing the design principles of final products at reduced processability costs. While ab initio molecular dynamics (AIMD) simulations can provide the necessary accuracy for treating key interactions in polar polymers, such as dipole-dipole interactions and hydrogen bonding, and analyzing their influence on the molecular orientation, their implementation is limited to small molecules only. Herein, we show that the neural network interatomic potentials (NNIPs) that are trained on the small-scale AIMD data (acquired for oligomers) can be efficiently employed to examine the structures and properties at large scales (polymers). NNIP provides critical insight into intra- and interchain hydrogen-bonding and dipolar correlations and accurately predicts the amorphous bulk PAN structure validated by modeling the experimental X-ray structure factor. Furthermore, the NNIP-predicted PAN properties, such as density and elastic modulus, are in good agreement with their experimental values. Overall, the trend in the elastic modulus is found to correlate strongly with the PAN structural orientations encoded in the Hermans orientation factor. This study enables the ability to predict the structure-property relations for PAN and analogues with sustainable ab initio accuracy across scales.
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Affiliation(s)
- Rajni Chahal
- Chemical Science Division, Oak Ridge National Laboratory (ORNL), Oak Ridge, Tennessee 37830, United States
| | - Michael D Toomey
- Chemical Science Division, Oak Ridge National Laboratory (ORNL), Oak Ridge, Tennessee 37830, United States
| | - Logan T Kearney
- Chemical Science Division, Oak Ridge National Laboratory (ORNL), Oak Ridge, Tennessee 37830, United States
| | - Ada Sedova
- Bioscience Division, Oak Ridge National Laboratory (ORNL), Oak Ridge, Tennessee 37830, United States
| | - Joshua T Damron
- Chemical Science Division, Oak Ridge National Laboratory (ORNL), Oak Ridge, Tennessee 37830, United States
| | - Amit K Naskar
- Chemical Science Division, Oak Ridge National Laboratory (ORNL), Oak Ridge, Tennessee 37830, United States
| | - Santanu Roy
- Chemical Science Division, Oak Ridge National Laboratory (ORNL), Oak Ridge, Tennessee 37830, United States
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149
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Liu Z, Chen Y, Zhang S. Low-Temperature Rapid Polymerization of Intrinsic Conducting PAD/OC Hydrogels with a Self-Adhesive and Sensitive Sensor for Outdoor Damage Repair and Detection. ACS APPLIED MATERIALS & INTERFACES 2024; 16:36862-36877. [PMID: 38970565 DOI: 10.1021/acsami.4c03977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/08/2024]
Abstract
Intrinsic conducting hydrogels fabricated in situ at low temperatures with self-adhesive properties and excellent flexibility hold significant promise for energy applications and outdoor damage repair. However, challenges such as low polymerization rate and self adhesion, insufficient ionic conductivity, inflexibility, and poor stability under extreme cold conditions have hindered their utilization as high-performance sensors. In this study, we designed an intrinsic conducting hydrogel (PADOC) composed of acrylic acid, acryloyloxyethyltrimethylammonium chloride, N,N'-methylenebis(2-propenamide), self-fabricated oxidized curdlan (OC), and a water/glycerol binary solvent. The novel hydrogel exhibited rapid gelation (30 s) at 0 °C facilitated by the promotion of OC, without the need for external energy input. Our findings from FT-IR, NMR, XPS, XRD, EPR spectra, MS, and DSC analyses revealed that OC underwent selective oxidation via the evolved Fenton reaction at 30 °C, serving as bioaccelerators for PAD polymerization. Due to OC's reductive structure and increased solubility, the reaction activation energy of the PAD polymerization reaction significantly reduced from 103.2 to 54.4 kJ/mol. PADOC ionic hydrogels demonstrated an electrical conductivity of 1.00 S/m, 0.7% low hysteresis, 39.6 kPa self-adhesive strength, and 923% strain-at-break and kept even at -20 °C owing to dense hydrogen and ionic bonds between PAD and OC chains. Furthermore, PADOC ionic hydrogels exhibited antifatigue properties for 10 cycles (0-100%) due to electrostatic interactions and hydrogen bonding. Remarkably, using a self-designed device, the rapid polymerization of PADOC effectively repaired copper pipeline leakage under 86 kPa pressure and detected 1% strain variation as a strain sensor. This study opens a new avenue for the rapid gelation of self-adhesive and flexible intrinsic conducting hydrogels with robust sensor performance.
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Affiliation(s)
- Zhenghe Liu
- School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yukun Chen
- School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China
- Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center, Jieyang 515200, China
| | - Shuidong Zhang
- School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China
- Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center, Jieyang 515200, China
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
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150
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Kaczmarska A, Pieczywek PM, Cybulska J, Cieśla J, Zdunek A. Structural and rheological properties of diluted alkali soluble pectin from apple and carrot. Food Chem 2024; 446:138869. [PMID: 38428075 DOI: 10.1016/j.foodchem.2024.138869] [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: 06/16/2023] [Revised: 02/13/2024] [Accepted: 02/25/2024] [Indexed: 03/03/2024]
Abstract
Pectin, a complex polysaccharide found in plant cell walls, plays a crucial role in various industries due to its functional properties. The diluted alkali-soluble pectin (DASP) fractions that result from the stepwise extraction of apples and carrots were studied to evaluate their structural and rheological properties. Homogalacturonan and rhamnogalacturonan I, in different proportions, were the main pectin domains that composed DASP from both materials. Atomic force microscopy revealed that the molecules of apple DASP were longer and more branched. A persistence length greater than 40 nm indicated that the pectin molecules deposited on mica behaved as stiff molecules. The weight-averaged molar mass was similar for both samples. Intrinsic viscosity values of 194.91 mL·g-1 and 186.79 mL·g-1 were obtained for apple and carrot DASP, respectively. Rheological measurements showed greater structural strength for apple-extracted pectin, whereas carrot pectin was characterized by a higher linear viscoelasticity limit. This comparison showed that the pectin fractions extracted by diluted alkali are structurally different and have different rheological properties depending on their botanical origin. The acquired insights can enhance the customized use of pectin residue and support further investigations in industries relying on pectin applications.
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Affiliation(s)
- Adrianna Kaczmarska
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-270 Lublin, Poland
| | - Piotr M Pieczywek
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-270 Lublin, Poland
| | - Justyna Cybulska
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-270 Lublin, Poland
| | - Jolanta Cieśla
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-270 Lublin, Poland
| | - Artur Zdunek
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-270 Lublin, Poland.
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