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Liu A, He M, Liu C, Ye Z, Tan CP, Liu Y, Gong J, Lei J, He Y, Zhu S, Zhao J, Xu YJ, Liu Y. Prevention of Hypercholesterolemia with "Liposomes in Microspheres" Composite Carriers: A Promising Approach for Intestinal-Targeted Oral Delivery of Astaxanthin. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:6118-6132. [PMID: 38477232 DOI: 10.1021/acs.jafc.3c08697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Cardiovascular diseases are caused by hypercholesterolemia. Astaxanthin (AST) has been reported to exhibit antioxidant and anti-inflammatory properties. However, its bioavailability is poor because of low solubility and instability. In order to improve the bioavailability of AST, we developed an intestinal-responsive composite carrier termed as "liposomes in micropheres" incorporating N-succinyl-chitosan (NSC)-poly(ethylene glycol) (PEG) liposomes that functionalized by neonatal Fc receptors (FcRn) into hydrogels of sodium alginate (SA) and carboxymethyl chitosan (CMCS). In the AST NSC/HSA-PEG liposomes@SA/CMCS microspheres, the AST's encapsulation efficiency (EE) was 96.26% (w/w) and its loading capacity (LC) was 6.47% (w/w). AST NSC/HSA-PEG liposomes had stability in the gastric conditions and achieved long-term release of AST in intestinal conditions. Then, AST NSC/HSA-PEG liposomes@SA/CMCS bind to intestinal epithelial cell targets by the neonatal Fc receptor. In vitro permeation studies show that there was a 4-fold increase of AST NSC/HSA-PEG liposomes@SA/CMCS in AST permeation across the intestinal epithelium. Subsequent in vivo experiments demonstrated that the composite carrier exhibited a remarkable mucoadhesive capacity, allowing for extended intestinal retention of up to 12 h, and it displayed deep penetration through the mucus layer, efficiently entering the intestinal villi epithelial cells, and enhancing the absorption of AST and its bioavailability in vivo. And oral administration of AST NSC/HSA-PEG liposomes@SA/CMCS could effectively prevent hypercholesterolemia caused by a high-fat, high-cholesterol diet (HFHCD). These advancements highlight the potential of NSC/HSA-PEG liposomes@SA/CMCS composite carriers for targeted and oral uptake of hydrophobic bioactives.
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Affiliation(s)
- Aiyang Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Mengxue He
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Chunhuan Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Zhan Ye
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Chin-Ping Tan
- Department of Food Technology, Faculty of Food Science and Technology, University Putra Malaysia, Selangor 410500, Malaysia
| | - Yanjun Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Jiajia Gong
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Jingnan Lei
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Yuan He
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Shuang Zhu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Jialiang Zhao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Yong-Jiang Xu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Yuanfa Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
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Jung S, Kim J, Bang J, Jung M, Park S, Yun H, Kwak HW. pH-sensitive cellulose/chitin nanofibrillar hydrogel for dye pollutant removal. Carbohydr Polym 2023; 317:121090. [PMID: 37364959 DOI: 10.1016/j.carbpol.2023.121090] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 05/31/2023] [Accepted: 06/02/2023] [Indexed: 06/28/2023]
Abstract
In this study, a pH-sensitive smart hydrogel was successfully prepared by combining a polyelectrolyte complex using biopolymeric nanofibrils. By adding a green citric acid cross-linking agent to the formed chitin and cellulose-derived nanofibrillar polyelectrolytic complex, a hydrogel with excellent structural stability could be prepared even in a water environment, and all processes were conducted in an aqueous system. The prepared biopolymeric nanofibrillar hydrogel not only enables rapid conversion of swelling degree and surface charge according to pH but can also effectively remove ionic contaminants. The ionic dye removal capacity was 372.0 mg/g for anionic AO and 140.5 mg/g for cationic MB. The surface charge conversion ability according to pH could be easily applied to the desorption of the removed contaminants, and as a result, it showed an excellent contaminant removal efficiency of 95.1 % or more even in the repeated reuse process 5 times. Overall, the eco-friendly biopolymeric nanofibrillar pH-sensitive hydrogel shows potential for complex wastewater treatment and long-term use.
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Affiliation(s)
- Seungoh Jung
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jungkyu Kim
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Junsik Bang
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Minjung Jung
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Sangwoo Park
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Heecheol Yun
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hyo Won Kwak
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; Research Institute of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.
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Yang K, Wang Q, Novoselov KS, Andreeva DV. A nanofluidic sensing platform based on robust and flexible graphene oxide/chitosan nanochannel membranes for glucose and urea detection. NANOSCALE HORIZONS 2023; 8:1243-1252. [PMID: 37461370 DOI: 10.1039/d3nh00203a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
We present the development of a health-monitoring nanofluidic membrane utilizing biocompatible and biodegradable graphene oxide, chitosan, and graphene quantum dots. The nanoconfinement provided by graphene oxide nanolayers encapsulates chitosan molecules, allowing for their conformational changes and switchable hydrophobic-hydrophilic behavior in response to pH variations. This low-dimensional membrane operates as an array of nanofluidic channels that can release quantum dots upon pH change. The photoluminescence emission from quantum dots enables rapid and reliable optical visualization of pH changes, facilitating efficient human health monitoring. To ensure fouling prevention and enable multiple usages, we adopt a design approach that avoids direct contact between biomarkers and the nanochannels. This design strategy, coupled with good mechanical properties (Young's modulus of 5.5 ± 0.7 GPa), preserves the integrity and functionality of the sensors for repeated sensing cycles. Furthermore, leveraging the memory effect, our sensors can be reloaded with graphene quantum dots multiple times without significant loss of selectivity, achieving reusability. The wide-ranging capabilities of 2D materials and stimuli-responsive polymers empower our sustainable approach to designing low-dimensional, robust, and flexible sensing materials. This approach allows for the integration of various biorecognition elements and signal transduction modes, expanding the versatility and applications of the designed materials.
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Affiliation(s)
- Kou Yang
- Department of Materials Science and Engineering, National University of Singapore, 117575, Singapore.
- Institute for Functional Intelligent Materials, National University of Singapore, 117544, Singapore
| | - Qinyue Wang
- Department of Materials Science and Engineering, National University of Singapore, 117575, Singapore.
- School of Materials Science and Engineering, Northwestern Polytechnical University, 710072, Shaanxi, China
| | - Kostya S Novoselov
- Department of Materials Science and Engineering, National University of Singapore, 117575, Singapore.
- Institute for Functional Intelligent Materials, National University of Singapore, 117544, Singapore
| | - Daria V Andreeva
- Department of Materials Science and Engineering, National University of Singapore, 117575, Singapore.
- Institute for Functional Intelligent Materials, National University of Singapore, 117544, Singapore
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Karami F, Saber-Samandari S. Synthesis and characterization of a novel hydrogel based on carboxymethyl chitosan/sodium alginate with the ability to release simvastatin for chronic wound healing. Biomed Mater 2023; 18:025001. [PMID: 36603225 DOI: 10.1088/1748-605x/acb0a3] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 01/05/2023] [Indexed: 01/06/2023]
Abstract
Since wound dressing has been considered a promising strategy to improve wound healing, recent attention has been focused on the development of modern wound dressings based on synthetic and bioactive polymers. In this study, we prepared a multifunctional wound dressing based on carboxymethyl chitosan (CMC)/sodium alginate (Alg) hydrogel containing a nanostructured lipid carrier (NLC) in which simvastatin (SIM) has been encapsulated. This dressing aimed to act as a barrier against pathogens, eliminate excess exudates, and accelerate wound healing. Among various fabricated composites of dressing, the hydrogel composite with a CMC/sodium Alg ratio of 1:2 had an average pore size of about 98.44 ± 26.9 μm and showed 707 ± 31.9% swelling and a 2116 ± 79.2 g m-2per day water vapor transfer rate (WVTR), demonstrating appropriate properties for absorbing exudates and maintaining wound moisture. The NLC with optimum composition and properties had a spherical shape and uniform particle size distribution (74.46 ± 7.9 nm). The prepared nanocomposite hydrogel displayed excellent antibacterial activity againstEscherichia coliandStaphylococcus aureusas well as high biocompatibility on L929 mouse fibroblast cells. It can release the loaded SIM drug slowly and over a prolonged period of time. The highest drug release occurred (80%) within 14 d. The results showed that this novel nanocomposite could be a promising candidate as a wound dressing for treating various chronic wounds in skin tissues.
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Affiliation(s)
- Fatemeh Karami
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Saeed Saber-Samandari
- New Technologies Research Center, Amirkabir University of Technology, Tehran, Iran
- Composites Research Laboratory (CRLab), Amirkabir University of Technology, Tehran, Iran
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Polysaccharide gum based network hydrogels for controlled drug delivery of ceftriaxone: Synthesis, Characterization and biomedical evaluations. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Algal Polysaccharides-Based Hydrogels: Extraction, Synthesis, Characterization, and Applications. Mar Drugs 2022; 20:md20050306. [PMID: 35621958 PMCID: PMC9146341 DOI: 10.3390/md20050306] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 02/04/2023] Open
Abstract
Hydrogels are three-dimensional crosslinked hydrophilic polymer networks with great potential in drug delivery, tissue engineering, wound dressing, agrochemicals application, food packaging, and cosmetics. However, conventional synthetic polymer hydrogels may be hazardous and have poor biocompatibility and biodegradability. Algal polysaccharides are abundant natural products with biocompatible and biodegradable properties. Polysaccharides and their derivatives also possess unique features such as physicochemical properties, hydrophilicity, mechanical strength, and tunable functionality. As such, algal polysaccharides have been widely exploited as building blocks in the fabrication of polysaccharide-based hydrogels through physical and/or chemical crosslinking. In this review, we discuss the extraction and characterization of polysaccharides derived from algae. This review focuses on recent advances in synthesis and applications of algal polysaccharides-based hydrogels. Additionally, we discuss the techno-economic analyses of chitosan and acrylic acid-based hydrogels, drawing attention to the importance of such analyses for hydrogels. Finally, the future prospects of algal polysaccharides-based hydrogels are outlined.
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Multi-Responsive Optimization of Novel pH-Sensitive Hydrogel Beads Based on Basil Seed Mucilage, Alginate, and Magnetic Particles. Gels 2022; 8:gels8050274. [PMID: 35621571 PMCID: PMC9141934 DOI: 10.3390/gels8050274] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/19/2022] [Accepted: 04/23/2022] [Indexed: 02/01/2023] Open
Abstract
Conventional drug delivery systems often cause side effects and gastric degradation. Novel drug delivery systems must be developed to decrease side effects and increase the efficacy of drug delivery. This research aimed to fabricate hydrogel beads for use as a drug delivery system based on basil seed mucilage (BSM), sodium alginate (SA), and magnetic particles (MPs). The Taguchi method and Grey relational analysis were used for the design and optimization of the hydrogel beads. Three factors, including BSM, SA, and MPs at four levels were designed by L-16 orthogonal arrays. BSM was the main factor influencing bead swelling, drug release rate at pH 7.4, and release of antioxidants at pH 1.2 and 7.4. In addition, SA and MPs mainly affected drug loading and drug release rate in acidic medium, respectively. Grey relational analysis indicated that the composition providing optimal overall properties was 0.2 vol% BSM, 0.8 vol% SA, and 2.25 vol% MPs. Based on the findings of this work, BSM/SA/MPs hydrogel beads have the potential to be used as a pH-sensitive alternative material for drug delivery in colon-specific systems.
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pH-Responsive Eco-Friendly Chitosan–Chlorella Hydrogel Beads for Water Retention and Controlled Release of Humic Acid. WATER 2022. [DOI: 10.3390/w14081190] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
For improving the mechanical strength of controlled release fertilizer (CRF) hydrogels, a novel material of Chlorella was employed as a bio-based filler to prepare chitosan–chlorella hydrogel beads with physical crosslink method. Here, the synthesis mechanism was investigated, and the chitosan–chlorella hydrogel beads exhibited enhanced mechanical stability under centrifugation and sonication than pure chitosan hydrogel beads. Chlorella brought more abundant functional groups to original chitosan hydrogel, hence, chitosan–chlorella hydrogel beads represented greater sensitivity and controllable response to external factors including pH, salt solution, temperature. In distilled water, the hydrogel beads with 40 wt% Chlorella reached the largest water absorption ratio of 42.92 g/g. Moreover, the mechanism and kinetics process of swelling behavior of the chitosan–chlorella hydrogel beads were evaluated, and the loading and releasing of humic acid by the hydrogel beads as a carrier material were pH-dependent and adjustable, which exhibit the potential of chitosan–chlorella hydrogel beads in the field of controlled release carrier biomaterials.
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Pourmanouchehri Z, Ebrahimi S, Limoee M, Jalilian F, Janfaza S, Vosoughi A, Behbood L. Controlled release of 5-fluorouracil to melanoma cells using a hydrogel/micelle composites based on deoxycholic acid and carboxymethyl chitosan. Int J Biol Macromol 2022; 206:159-166. [PMID: 35218806 DOI: 10.1016/j.ijbiomac.2022.02.096] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 01/28/2022] [Accepted: 02/16/2022] [Indexed: 12/31/2022]
Abstract
5-Fluorouracil (5-FU) is an antimetabolite drug widely used for the treatment of skin cancer. Despite its proven efficacy in treating malignancies, its systemic administration is limited due to severe side effects. To address this issue, topical delivery of 5-FU has been proposed as an alternative approach for the treatment of skin cancer, however, the poor permeability of 5-FU through the skin is still a challenge. Here, we introduced a pH-responsive micellar hydrogel system based on deoxycholic acid micelle (DCA Mic) and carboxymethyl chitosan hydrogel (CMC Hyd) to enhance 5-FU efficacy against skin cancer and reduce its systemic side effects by improving its delivery into the skin. The properties of the Mic/Hyd system were determined by Fourier-transform infrared spectroscopy (FT-IR), dynamic light scattering (DLS), zeta sizer, atomic force microscopy (AFM), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Drug release studies showed pH-dependent properties of the Hyd. The final formulation was demonstrated to have enhanced anticancer activity than 5-FU against the growth of melanoma cells. The 5-FU@Mic-Hyd could be a promising delivery platform with enhanced efficacy in the management of skin cancer without systemic toxicity.
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Affiliation(s)
- Zahra Pourmanouchehri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Sayeh Ebrahimi
- Student Research Committee, School of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mazdak Limoee
- Nano Drug Delivery Research Center, School of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Fereshteh Jalilian
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Sajad Janfaza
- School of Engineering, University of British Columbia, Kelowna, BC, Canada; Departments of Biological Sciences, University of Alberta, Edmonton, AB T6G 2E9, Canada
| | - Amirhossein Vosoughi
- Student Research Committee, School of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Leila Behbood
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran; Nano Drug Delivery Research Center, School of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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Zhang Z, Hao G, Liu C, Fu J, Hu D, Rong J, Yang X. Recent progress in the preparation, chemical interactions and applications of biocompatible polysaccharide-protein nanogel carriers. Food Res Int 2021; 147:110564. [PMID: 34399540 DOI: 10.1016/j.foodres.2021.110564] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 06/21/2021] [Accepted: 06/27/2021] [Indexed: 12/12/2022]
Abstract
Nanogel carriers are rapidly emerged as a major delivery strategy in the fields of food, biology and medicine for small particle size, excellent solubility, high loading, and controlled release. Natural polysaccharides and proteins are selected for the preparation of biocompatible, biodegradable, low toxic, and less immunogenic nanogels. Different polysaccharides and proteins form complex nanogels through different interaction forces (e.g., electrostatic interaction and hydrophobic interaction). The present review pursues three aims: 1) to introduce several well-known dietary polysaccharides (chitosan, dextran and alginate) and proteins (whey protein and lysozyme); 2) to discuss the types, preparation methods, chemical interactions and properties of various biocompatible complex carriers; 3) to present the application and prospect of polysaccharide-protein complex in bioactive ingredient delivery, nutrient encapsulation and flavor protection. We expect that the integration with nano-intelligent technology will improve the functional ingredient loading, recognition specificity and controlled release capabilities of polysaccharide-protein nanocomposites to generate new intelligent nanogels in the field of food industry in the future.
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Affiliation(s)
- Zhong Zhang
- Shaanxi Engineering Laboratory for Food Green Processing Safety Control, Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, Engineering Research Center of High Value Utilization of Western Fruit Resources and College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710119, China; School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 10 Sassoon Road, Pokfulam, Hong Kong
| | - Guoying Hao
- Shaanxi Engineering Laboratory for Food Green Processing Safety Control, Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, Engineering Research Center of High Value Utilization of Western Fruit Resources and College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Chen Liu
- Shaanxi Engineering Laboratory for Food Green Processing Safety Control, Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, Engineering Research Center of High Value Utilization of Western Fruit Resources and College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Junqing Fu
- Shandong Institute for Food and Drug Control, Ji'nan, Shandong 250101, China
| | - Dan Hu
- Shaanxi Engineering Laboratory for Food Green Processing Safety Control, Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, Engineering Research Center of High Value Utilization of Western Fruit Resources and College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Jianhui Rong
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 10 Sassoon Road, Pokfulam, Hong Kong.
| | - Xingbin Yang
- Shaanxi Engineering Laboratory for Food Green Processing Safety Control, Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, Engineering Research Center of High Value Utilization of Western Fruit Resources and College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710119, China.
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Lv C, Li L, Jiao Z, Yan H, Wang Z, Wu Z, Guo M, Wang Y, Zhang P. Improved hemostatic effects by Fe 3+ modified biomimetic PLLA cotton-like mat via sodium alginate grafted with dopamine. Bioact Mater 2021; 6:2346-2359. [PMID: 33553820 PMCID: PMC7840473 DOI: 10.1016/j.bioactmat.2021.01.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/17/2020] [Accepted: 01/04/2021] [Indexed: 12/25/2022] Open
Abstract
The development of an excellent, bioabsorbable hemostatic material for deep wound remains a challenge. In this work, a biodegradable cotton-like biomimetic fibrous mat of poly (l-lactic acid) (PLLA) was made by melt spinning. Subsequently, SD composite was prepared by cross-linking sodium alginate (SA) with dopamine (DA). It was immobilized on the fibre surface, which inspired by mussel byssus. Finally, Fe3+ was loaded onto the 0.5SD/PLLA composite by chelation with the carboxyl of alginate and phenolic hydroxy of dopamine. The haemostasis experiment found that the hemostatic time 47 s in vitro. However, the bleeding volume was 0.097 g and hemostatic time was 23 s when 20Fe3+-0.5SD/PLLA was applied in the haemostasis of the rat liver. As a result of its robust hydrophilicity and bouffant cotton-like structure, it could absorb a large water from blood, which could concentrate the component of blood and reduce the clotting time. Furthermore, the addition of Fe3+ in the 0.5SD/PLLA had a significant effect on improve hemostatic property. It also displayed excellent antibacterial property for Escherichia coli and Staphylococcus aureus. Notably, it possesses superior hemocompatibility, cytocompatibility and histocompatibility. Hence, 20Fe3+-0.5SD/PLLA has high potential application in haemostasis for clinical settings due to its outstanding properties.
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Affiliation(s)
- Caili Lv
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, PR China
| | - Linlong Li
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, PR China
| | - Zixue Jiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
| | - Huanhuan Yan
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, PR China
| | - Zongliang Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
| | - Zhenxu Wu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
| | - Min Guo
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
| | - Yu Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
| | - Peibiao Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, PR China
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Sun X, Zhao Y, Li H, Luo C, Luo F. Facile fabrication of tough and biocompatible hydrogels from polyvinyl alcohol and agarose. J Appl Polym Sci 2021. [DOI: 10.1002/app.50979] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Xinxin Sun
- College of Chemistry and Chemical Engineering North Minzu University Yinchuan China
| | - Yufei Zhao
- College of Chemistry and Chemical Engineering North Minzu University Yinchuan China
| | - Hui Li
- College of Chemistry and Chemical Engineering North Minzu University Yinchuan China
| | - Chunhui Luo
- College of Chemistry and Chemical Engineering North Minzu University Yinchuan China
- Key Laboratory of Chemical Engineering and Technology, State Ethnic Affairs Commission North Minzu University Yinchuan China
- Ningxia Key Laboratory of Solar Chemical Conversion Technology North Minzu University Yinchuan China
| | - Faliang Luo
- State Key Laboratory of High‐efficiency Utilization of Coal and Green Chemical Engineering Ningxia University Yinchuan China
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Wu X, Li H. Incorporation of Bioglass Improved the Mechanical Stability and Bioactivity of Alginate/Carboxymethyl Chitosan Hydrogel Wound Dressing. ACS APPLIED BIO MATERIALS 2021; 4:1677-1692. [PMID: 35014515 DOI: 10.1021/acsabm.0c01477] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recently, hydrogel wound dressings were popular in wound healing because of their advantages over traditional gauze dressings. The alginate/carboxymethyl chitosan (SA/CMCS) hydrogel wound dressing has been widely studied because of its biocompatibility and antibacterial ability. However, the poor mechanical stability and lack of bioactivity limit their applications. Bioglass (BG) has been well acknowledged as a bioactive material, and SA/BG hydrogels have been reported to be able to promote wound healing. Calcium ions released from BG can further cross-link SA, which may enhance the mechanical stability of the SA/CMCS hydrogels. Therefore, in this study, BG was incorporated into SA/CMCS hydrogel in order to obtain a bioactive alginate/CMCS/BG (SA/CMCS/BG) hydrogel wound dressing with improved mechanical stability. Results showed that the Young's modulus of SA/CMCS/BG hydrogel was three times higher than that of SA/CMCS hydrogel. In addition to better antibacterial and coagulation properties, SA/CMCS/BG hydrogels possess stronger bioactivity than SA/CMCS hydrogels as they could accelerate skin wound closure by regulating the host inflammation responses, stimulating angiogenesis, and enhancing collagen deposition in wound sites, which suggests that SA/CMCS/BG hydrogels are good candidates for clinic wound dressings.
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Affiliation(s)
- Xin Wu
- School of Biomedical Engineering, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, P. R. China
| | - Haiyan Li
- School of Biomedical Engineering, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, P. R. China
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14
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Rezaei F, Damoogh S, Reis RL, Kundu SC, Mottaghitalab F, Farokhi M. Dual drug delivery system based on pH-sensitive silk fibroin/alginate nanoparticles entrapped in PNIPAM hydrogel for treating severe infected burn wound. Biofabrication 2020; 13:015005. [PMID: 33078712 DOI: 10.1088/1758-5090/abbb82] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Herein, the pH-sensitive vancomycin (VANCO) loaded silk fibroin-sodium alginate nanoparticles (NPs) embedded in poly(N-isopropylacrylamide) (PNIPAM) hydrogel containing epidermal growth factor (EGF) are introduced for treating chronic burn wound infections. The hybrid system was developed to control the release rates of an antibiotic and growth factor for optimal treatment of burn infections. VANCO had a pH responsive release behavior from the nanoparticle (NP) and showed higher release rate in an alkaline pH compared to the neutral pH during 10 d. About 30% of EGF was also released from the hydrogel within 20 d. The released VANCO and EGF preserved their bioactivity more than ∼ 80%. The suitable physico-chemical properties and cellular behaviors of PNIPAM hydrogel supported the proliferation and growth of the fibroblast cells. Furthermore, the higher re-epithelialization with good wound contraction rate, neovascular formation, and expression of transforming growth factor-beta were observed in S. aureus infected rat burn wound by using the hydrogel containing VANCO and EGF compared with untreated wounds and hydrogel alone. The wound infection was also significantly reduced in the groups treated with the hydrogels containing VANCO. Overall, in vitro and in vivo results suggested that developed hybrid system would be a promising construct to treat severe wound infection.
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Affiliation(s)
- Fatemeh Rezaei
- Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran 15875/4413, Iran. These authors contributed equally to this work
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Yang L, Wang S, Ma Q, Song Z, Hou R, Huang S, Cheng D, Zhang Z. Fabrication of sulfoxaflor-loaded natural polysaccharide floating hydrogel microspheres against Nilaparvata lugens (Stal) in rice fields. PEST MANAGEMENT SCIENCE 2020; 76:3046-3055. [PMID: 32279438 DOI: 10.1002/ps.5855] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 04/03/2020] [Accepted: 04/12/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Nilaparvata lugens (Stal) nymphs and adults aggregate and feed on leaf sheaths at the base of rice plants. It is difficult to apply traditional spray treatments directly onto the plant stems due to the blocking agent produced by leaves. Further, spiders and mirids, the natural enemies of N. lugens (Stal), are directly exposed to the chemicals during spraying. Sulfoxaflor-loaded natural polysaccharide microspheres with good performance were developed and tested in rice fields. The absorption, distribution, and dissipation of sulfoxaflor in rice plants, soil, and water were examined. RESULTS Sulfoxaflor-loaded natural polysaccharide microspheres were prepared through physical embedding and ionic crosslinking, using citronellol as an oil phase to provide floatation. The sustained release of sulfoxaflor was achieved through swelling and dissolution, indicating that these structures could effectively control pesticide release. Field experiments showed that these microspheres were able to float in water and gather around the stem of rice plants and that their insecticidal effect was remarkably improved compared to that achieved using the suspension concentrate. Results also showed that the residual content of stems following treatment with sulfoxaflor-loaded natural polysaccharide microspheres reached 0.331 mg kg-1 , but was reduced in other parts of the plant. CONCLUSION In the present study, sulfoxaflor-loaded natural polysaccharide microspheres with optimized properties were successfully prepared. These microspheres produced a better control effect on N. lugens (Stal) compared to the use of the sulfoxaflor suspension concentrate. Their application may help promote the scientific control of target pests in rice fields. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Liupeng Yang
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, China
- Guangdong Biological Pesticide Engineering Technology Research Center, South China Agricultural University, Guangzhou, China
| | - Shiying Wang
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, China
- Guangdong Biological Pesticide Engineering Technology Research Center, South China Agricultural University, Guangzhou, China
| | - Qianli Ma
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, China
- Guangdong Biological Pesticide Engineering Technology Research Center, South China Agricultural University, Guangzhou, China
| | - Zixia Song
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, China
- Guangdong Biological Pesticide Engineering Technology Research Center, South China Agricultural University, Guangzhou, China
| | - Ruiquan Hou
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, China
- Guangdong Biological Pesticide Engineering Technology Research Center, South China Agricultural University, Guangzhou, China
| | - Suqing Huang
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Dongmei Cheng
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Zhixiang Zhang
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, China
- Guangdong Biological Pesticide Engineering Technology Research Center, South China Agricultural University, Guangzhou, China
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16
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Mertins O, Mathews PD, Angelova A. Advances in the Design of pH-Sensitive Cubosome Liquid Crystalline Nanocarriers for Drug Delivery Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E963. [PMID: 32443582 PMCID: PMC7281514 DOI: 10.3390/nano10050963] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 04/29/2020] [Accepted: 05/03/2020] [Indexed: 01/10/2023]
Abstract
Nanostructure bicontinuous cubic phase self-assembled materials are receiving expanding applications as biocompatible delivery systems in various therapeutic fields. The functionalization of cubosome, spongosome, hexosome and liposome nanocarriers by pH-sensitive lipids and/or pH-sensitive polymer shells offers new opportunities for oral and topical drug delivery towards a new generation of cancer therapies. The electrochemical behavior of drug compounds may favor pH-triggered drug release as well. Here, we highlight recent investigations, which explore the phase behavior of mixed nonlamellar lipid/fatty acid or phospholipid systems for the design of pH-responsive and mucoadhesive drug delivery systems with sustained-release properties. X-ray diffraction and small-angle X-ray scattering (SAXS) techniques are widely used in the development of innovative delivery assemblies through detailed structural analyses of multiple amphiphilic compositions from the lipid/co-lipid/water phase diagrams. pH-responsive nanoscale materials and nanoparticles are required for challenging therapeutic applications such as oral delivery of therapeutic proteins and peptides as well as of poorly water-soluble substances. Perspective nanomedicine developments with smart cubosome nanocarriers may exploit compositions elaborated to overcome the intestinal obstacles, dual-drug loaded pH-sensitive liquid crystalline architectures aiming at enhanced therapeutic efficacy, as well as composite (lipid/polyelectrolyte) types of mucoadhesive controlled release colloidal cubosomal formulations for the improvement of the drugs' bioavailability.
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Affiliation(s)
- Omar Mertins
- Institut Galien Paris-Saclay UMR8612, Université Paris-Saclay, CNRS, F-92296 Châtenay-Malabry, France;
- Laboratory of Nano Bio Materials (LNBM), Department of Biophysics, Paulista Medical School, Federal University of Sao Paulo (UNIFESP), Sao Paulo 04023-062, Brazil;
| | - Patrick D. Mathews
- Laboratory of Nano Bio Materials (LNBM), Department of Biophysics, Paulista Medical School, Federal University of Sao Paulo (UNIFESP), Sao Paulo 04023-062, Brazil;
- Muséum National d’Histoire Naturelle, Sorbonne Université, CP 26, 75231 Paris, France
| | - Angelina Angelova
- Institut Galien Paris-Saclay UMR8612, Université Paris-Saclay, CNRS, F-92296 Châtenay-Malabry, France;
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Liu Q, Li Y, Yang X, Xing S, Qiao C, Wang S, Xu C, Li T. O-Carboxymethyl chitosan-based pH-responsive amphiphilic chitosan derivatives: Characterization, aggregation behavior, and application. Carbohydr Polym 2020; 237:116112. [PMID: 32241407 DOI: 10.1016/j.carbpol.2020.116112] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 02/28/2020] [Accepted: 03/02/2020] [Indexed: 11/26/2022]
Abstract
Chitosan has attracted much attention in drug delivery, however, carboxymethyl chitosan (CMC)-based self-aggregated nanocarriers are seldom reported. In this paper, two kinds of CMC-based pH-responsive amphiphilic chitosan derivatives, N-2-hydroxylpropyl-3-butyl ether-O-carboxymethyl chitosan (HBCC) and N-2-hydroxylpropyl-3-(2-ethylhexyl glycidyl ether)-O-carboxymethyl chitosan (H2ECC), have been synthesized by the homogeneous reaction. The molecular structures were characterized by FTIR, 1H NMR and 13C NMR. The optimum reaction condition was obtained based on the data of 1H NMR spectrum: reaction time of 4 h, reaction temperature of 80 °C and nepoxyn-NH2 of 3/1, respectively. The XRD patterns showed the crystallinity of HBCC and H2ECC decreased due to the introduction of hydrophobic segments. The thermostability of HBCC and H2ECC was improved for the formation of heat-resistant stereo-complexed structures. The intermolecular hydrophobic interaction hindered the intermolecular mobility by increasing glass transition temperature of ca. 10 °C. Both HBCC and H2ECC have very low critical aggregation concentrations (HBCC: 0.66-1.56 g/L, H2ECC: 0.57-1.07 g/L) and moderate aggregate particle size, which is advantageous for utilization as a drug carrier. The curcumin loaded HBCC and H2ECC aggregates showed nontoxicity, meanwhile, HBCC and H2ECC showed good antibacterial activity against Staphylococcus aureus and Escherichia coli. As a result of these two favorable properties, HBCC and H2ECC could be used as curcumin nanocarriers as well as antibacterial agents.
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Affiliation(s)
- Qun Liu
- Shandong Key Laboratory of Molecular Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, 250353, China
| | - Yan Li
- Shandong Key Laboratory of Molecular Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, 250353, China
| | - Xiaodeng Yang
- Shandong Key Laboratory of Molecular Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, 250353, China.
| | - Shu Xing
- Shandong Key Laboratory of Molecular Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, 250353, China
| | - Congde Qiao
- Shandong Key Laboratory of Molecular Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, 250353, China
| | - Shoujuan Wang
- Shandong Key Laboratory of Molecular Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, 250353, China
| | - Chunlin Xu
- Laboratory of Natural Materials and Technology, Johan Gadolin Process Chemistry Centre, Abo Akademi University, Porthansgatan 3, 20500 Turku, Finland
| | - Tianduo Li
- Shandong Key Laboratory of Molecular Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, 250353, China
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An injectable carboxymethyl chitosan-methylcellulose-pluronic hydrogel for the encapsulation of meloxicam loaded nanoparticles. Int J Biol Macromol 2020; 151:220-229. [PMID: 32027902 DOI: 10.1016/j.ijbiomac.2020.02.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 01/24/2020] [Accepted: 02/02/2020] [Indexed: 11/20/2022]
Abstract
Hydrogel scaffolds have been frequently utilized due to their ability to absorb water and develop similar body cell conditions. Specific drug delivery to the tissues ensures less adverse side effects and more efficiency. In the present study, carboxymethyl chitosan (CMC)-methylcellulose (MC)-pluronic (P) and zinc chloride hydrogels containing meloxicam loaded into nanoparticles were developed and characterized. Nanoparticles were incorporated at 3.5, 4.5 and 5.5% (w/v). Hydrogels containing the same amounts of the meloxicam solution were also prepared. Gelation time, swelling and degradation of the hydrogels were investigated. Hydrogels were characterized by scanning electron microscopy (SEM), attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy, and rheological analysis. Meloxicam release, chondrocytes attachment and growth on the hydrogels were also studied. Gelation time, swelling and the degradation rate of the hydrogels were found to be decreased by nanoparticles and increased with the addition of the meloxicam solution. SEM images also showed three-dimensional networks. The ATR-FTIR bands were shifted to the lower wave numbers in the hydrogels containing nanoparticles and shifted to the upper ones in the hydrogels containing meloxicam solution. Storage (G') and loss (G″) modulus were increased by the nanoparticles and reduced by the meloxicam solution. 100% of meloxicam was released from the hydrogels containing the meloxicam solution within 20 days, but it was released slowly from the hydrogels containing nanoparticles in 37days. Chondrocytes metabolic activity was increased on the 6th and 10th days for all hydrogels. Hydrogel containing nanoparticles showed good biocompatibility, bioadhesion, cell growth and expansion. The hydrogel could be, therefore, suitable as a new composite biomaterial for the regeneration of articular cartilage and meloxicam delivery to control the pain and inflammation in osteoarthritis.
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19
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Ozay O, Ilgin P, Ozay H, Gungor Z, Yilmaz B, Kıvanç MR. The preparation of various shapes and porosities of hydroxyethyl starch/p(HEMA-co-NVP) IPN hydrogels as programmable carrier for drug delivery. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2019. [DOI: 10.1080/10601325.2019.1700803] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Ozgur Ozay
- Department of Bioengineering, Faculty of Engineering, Canakkale Onsekiz Mart University, Canakkale, Turkey
- Laboratory of Inorganic Materials, Department of Chemistry, Faculty of Science and Arts, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Pinar Ilgin
- Department of Chemistry and Chemical Processing Technologies, Lapseki Vocational School, Canakkale Onsekiz Mart University, Canakkale/Lapseki, Turkey
| | - Hava Ozay
- Laboratory of Inorganic Materials, Department of Chemistry, Faculty of Science and Arts, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Zeynep Gungor
- Graduate School of Natural and Applied Sciences, Department of Chemistry, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Betul Yilmaz
- Graduate School of Natural and Applied Sciences, Department of Bioengineering and Materials Engineering, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Mehmet Rıza Kıvanç
- Department of Chemistry, Faculty of Education, Van Yüzüncü YılUniversity, Van, Turkey
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Reversible Mechanical Regulation and Splicing Ability of Alginate-Based Gel Based on Photo-Responsiveness of Molecular-Level Conformation. MATERIALS 2019; 12:ma12182919. [PMID: 31505857 PMCID: PMC6766279 DOI: 10.3390/ma12182919] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 08/26/2019] [Accepted: 09/02/2019] [Indexed: 01/07/2023]
Abstract
In this study, benefiting from the sensitive molecular conformation transversion in azobenzene, a new strategy for fabricating alginate gels with the abilities of splicing and photo-responsive mechanical adjustment is reported. Firstly, a 4,4’-azobis(benzoylhydrazide) (Azo-hydrazide) linker was used to crosslink alginate physically via the electrostatic interaction between hydrazide groups and carboxyl groups. It was then shaped and transferred in situ to a chemically crosslinked gel via 450 nm light irradiation. Under the irradiation, the molecular conformation change of azobenzene in the linker was able to form covalent bonds at the crosslinking points of the gels. Furthermore, the reversible conformation transformation of azobenzene was able to induce the increase and decrease of the storage modulus under irradiation with 365 nm light and 450 nm light, respectively, while also providing gel-like mechanical properties, depending upon the irradiation time and given wavelength. Meanwhile, the results also indicated that active groups could contribute to the splicing ability of the gel and construct a hollow cavity structure. It is believed that this work could provide a versatile strategy for preparing photo-responsive gels with reversibly tunable mechanical properties.
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21
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Park JW, Park KH, Seo S. Natural polyelectrolyte complex‐based pH‐dependent delivery carriers using alginate and chitosan. J Appl Polym Sci 2019. [DOI: 10.1002/app.48143] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Jun Woo Park
- Department of Biomaterials Science, Life and Industry Convergence InstitutePusan National University Miryang 50463 Republic of Korea
| | - Kyu Ha Park
- Department of Biomaterials Science, Life and Industry Convergence InstitutePusan National University Miryang 50463 Republic of Korea
| | - Sungbaek Seo
- Department of Biomaterials Science, Life and Industry Convergence InstitutePusan National University Miryang 50463 Republic of Korea
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22
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Mu M, Li X, Tong A, Guo G. Multi-functional chitosan-based smart hydrogels mediated biomedical application. Expert Opin Drug Deliv 2019; 16:239-250. [PMID: 30753086 DOI: 10.1080/17425247.2019.1580691] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Min Mu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, R. P. China
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, R. P. China
- Collaborative Innovation Center for Biotherapy, Chengdu, R. P. China
| | - Xiaoling Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, R. P. China
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, R. P. China
- Collaborative Innovation Center for Biotherapy, Chengdu, R. P. China
| | - Aiping Tong
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, R. P. China
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, R. P. China
- Collaborative Innovation Center for Biotherapy, Chengdu, R. P. China
| | - Gang Guo
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, R. P. China
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, R. P. China
- Collaborative Innovation Center for Biotherapy, Chengdu, R. P. China
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