1
|
Al-salem AS, Nayl AA, Alshammari MS, M Ahmed I. Adsorption Study of Neodymium from the Aqueous Phase Using Fabricated Magnetic Chitosan-Functionalized Graphene Oxide Composites. ACS OMEGA 2024; 9:32175-32184. [PMID: 39072114 PMCID: PMC11270553 DOI: 10.1021/acsomega.4c04742] [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: 05/19/2024] [Revised: 07/01/2024] [Accepted: 07/03/2024] [Indexed: 07/30/2024]
Abstract
This work reports the performances of the magnetic chitosan@graphene oxide composite (MCh@GO) for the sorption of Nd(III) from aqueous medium. The prepared composite was synthesized by a coprecipitation method and then examined by FT-IR, XRD, SEM, and TGA. XRD analysis proved physical interactions between magnetic chitosan and graphene oxide through (inter- and intramolecular H-bonding and peptide bonding). TGA data approved the thermal stability of the prepared MCh@GO nanocomposite over their constituents. The optimum pH for the sorption process was 4.5. The Langmuir model and PSO fitted the experimental data. The adsorption process was found to be endothermic and spontaneous with a Q max of 56.6 mg g-1. Indeed, the MCh@GO composite proved to be an excellent adsorbent for the purification, remediation, and separation of Nd due to its promising properties.
Collapse
Affiliation(s)
- Asmaa S. Al-salem
- Department
of Nursing, Northern College of Nursing, Arar 73311, Saudi Arabia
| | - AbdEIAziz A. Nayl
- Department
of Chemistry, College of Science, Jouf University, Sakaka, Aljouf 72341, Saudi Arabia
| | - Mutairah S. Alshammari
- Department
of Chemistry, College of Science, Jouf University, Sakaka, Aljouf 72341, Saudi Arabia
| | - Ismail M Ahmed
- Department
of Chemistry, College of Science, Jouf University, Sakaka, Aljouf 72341, Saudi Arabia
| |
Collapse
|
2
|
Shi S, Shi W, Zhou B, Qiu S. Research and Application of Chitosan Nanoparticles in Orthopedic Infections. Int J Nanomedicine 2024; 19:6589-6602. [PMID: 38979535 PMCID: PMC11228078 DOI: 10.2147/ijn.s468848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Accepted: 06/15/2024] [Indexed: 07/10/2024] Open
Abstract
Orthopedic infection is one of the most intractable orthopedic problems. Bacteria resistant to antibiotics also develop gradually. Chitosan is widely used in the Biomedical field because of its high biocompatibility, biodegradability, and antibacterial activity. Chitosan-based drug delivery systems are frequently utilized to produce controlled medication release. When combined with antibiotics, synergistic antibacterial effects can be achieved. Chitosan-based nanoparticles are one of the most widely used applications in drug delivery systems. The focus of this review is to provide information on new methods being developed for chitosan-based nanoparticles in the field of bone infection treatment, including chitosan nanoparticles for antibacterial purposes, Ch-loaded with antibiotics, Ch-loaded with metal, and used as immune adjuvants. It may Provide ideas for the fundamental research and the prospects of future clinical applications of orthopedic infections.
Collapse
Affiliation(s)
- Sifeng Shi
- Department of Orthopedic Surgery, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, People’s Republic of China
| | - Weiran Shi
- Department of Orthopedic Surgery, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, People’s Republic of China
| | - Bing Zhou
- Department of Orthopedic Surgery, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, People’s Republic of China
| | - Shang Qiu
- Department of Orthopedic Surgery, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, People’s Republic of China
| |
Collapse
|
3
|
Kaloper S, Plohl O, Smole Možina S, Vesel A, Šimat V, Fras Zemljič L. Exploring chitosan-plant extract bilayer coatings: Advancements in active food packaging via polypropylene modification. Int J Biol Macromol 2024; 270:132308. [PMID: 38740163 DOI: 10.1016/j.ijbiomac.2024.132308] [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: 02/05/2024] [Revised: 04/11/2024] [Accepted: 05/10/2024] [Indexed: 05/16/2024]
Abstract
UV-ozone activated polypropylene (PP) food films were subjected to a novel bilayer coating process involving primary or quaternary chitosan (CH/QCH) as the first layer and natural extracts from juniper needles (Juniperus oxycedrus; JUN) or blackberry leaves (Rubus fruticosus; BBL) as the second layer. This innovative approach aims to redefine active packaging (AP) development. Through a detailed analysis by surface characterization and bioactivity assessments (i.e., antioxidant and antimicrobial functionalities), we evaluated different coating combinations. Furthermore, we investigated the stability and barrier characteristics inherent in these coatings. The confirmed deposition, coupled with a comprehensive characterization of their composition and morphology, underscored the efficacy of the coatings. Our investigation included wettability assessment via contact angle (CA) measurements, X-ray photoelectron spectroscopy (XPS), and attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR), which revealed substantial enhancements in surface concentrations of elements and functional groups of CH, QCH, JUN, and BBL. Scanning electron microscopy (SEM) unveiled the coatings' heterogeneity, while time-of-flight secondary ion mass spectrometry (ToF-SIMS) and CA profiling showed moderately compact bilayers on PP, providing active species on the hydrophilic surface, respectively. The coatings significantly reduced the oxygen permeability. Additionally, single-layer depositions of CH and QCH remained below the overall migration limit (OML). Remarkably, the coatings exhibited robust antioxidative properties due to plant extracts and exceptional antimicrobial activity against S. aureus, attributed to QCH. These findings underscore the pivotal role of film surface properties in governing bioactive characteristics and offer a promising pathway for enhancing food packaging functionality.
Collapse
Affiliation(s)
- Saša Kaloper
- University of Maribor, Faculty of Mechanical Engineering, Laboratory for Characterization and Processing of Polymers, Smetanova ulica 17, 2000 Maribor, Slovenia.
| | - Olivija Plohl
- University of Maribor, Faculty of Mechanical Engineering, Laboratory for Characterization and Processing of Polymers, Smetanova ulica 17, 2000 Maribor, Slovenia.
| | - Sonja Smole Možina
- University of Ljubljana, Biotechnical Faculty, Department of Food Science and Technology, Jamnikarjeva ulica 101, 1000 Ljubljana, Slovenia.
| | - Alenka Vesel
- Department of Surface Engineering and Optoelectronics, Jožef Stefan Institute, Teslova ulica 30, 1000 Ljubljana, Slovenia.
| | - Vida Šimat
- University Department of Marine Studies, University of Split, Ruđera Boškovića 37, 21000 Split, Croatia.
| | - Lidija Fras Zemljič
- University of Maribor, Faculty of Mechanical Engineering, Laboratory for Characterization and Processing of Polymers, Smetanova ulica 17, 2000 Maribor, Slovenia.
| |
Collapse
|
4
|
Zhu S, Dou W, Zeng X, Chen X, Gao Y, Liu H, Li S. Recent Advances in the Degradability and Applications of Tissue Adhesives Based on Biodegradable Polymers. Int J Mol Sci 2024; 25:5249. [PMID: 38791286 PMCID: PMC11121545 DOI: 10.3390/ijms25105249] [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: 04/10/2024] [Revised: 04/30/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
In clinical practice, tissue adhesives have emerged as an alternative tool for wound treatments due to their advantages in ease of use, rapid application, less pain, and minimal tissue damage. Since most tissue adhesives are designed for internal use or wound treatments, the biodegradation of adhesives is important. To endow tissue adhesives with biodegradability, in the past few decades, various biodegradable polymers, either natural polymers (such as chitosan, hyaluronic acid, gelatin, chondroitin sulfate, starch, sodium alginate, glucans, pectin, functional proteins, and peptides) or synthetic polymers (such as poly(lactic acid), polyurethanes, polycaprolactone, and poly(lactic-co-glycolic acid)), have been utilized to develop novel biodegradable tissue adhesives. Incorporated biodegradable polymers are degraded in vivo with time under specific conditions, leading to the destruction of the structure and the further degradation of tissue adhesives. In this review, we first summarize the strategies of utilizing biodegradable polymers to develop tissue adhesives. Furthermore, we provide a symmetric overview of the biodegradable polymers used for tissue adhesives, with a specific focus on the degradability and applications of these tissue adhesives. Additionally, the challenges and perspectives of biodegradable polymer-based tissue adhesives are discussed. We expect that this review can provide new inspirations for the design of novel biodegradable tissue adhesives for biomedical applications.
Collapse
Affiliation(s)
- Shuzhuang Zhu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Wenguang Dou
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Xiaojun Zeng
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
- College of Life Sciences, Yantai University, Yantai 264005, China
| | - Xingchao Chen
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Yonglin Gao
- College of Life Sciences, Yantai University, Yantai 264005, China
| | - Hongliang Liu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Sidi Li
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| |
Collapse
|
5
|
Zhang F, Wu X, Li Q, Ma B, Zhang M, Zhang W, Kou Y. Dual growth factor methacrylic alginate microgels combined with chitosan-based conduits facilitate peripheral nerve repair. Int J Biol Macromol 2024; 268:131594. [PMID: 38621568 DOI: 10.1016/j.ijbiomac.2024.131594] [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: 11/21/2023] [Revised: 04/05/2024] [Accepted: 04/12/2024] [Indexed: 04/17/2024]
Abstract
Treating severe peripheral nerve injuries is difficult. Nerve repair with conduit small gap tubulization is a treatment option but still needs to be improved. This study aimed to assess the use of microgels containing growth factors, along with chitosan-based conduits, for repairing nerves. Using the water-oil emulsion technique, microgels of methacrylic alginate (AlgMA) that contained vascular endothelial growth factor (VEGF) and brain-derived neurotrophic factor (BDNF) were prepared. The effects on rat Schwann cells (RSC96) and human umbilical vein endothelial cells (HUVECs) were evaluated. Chitosan-based conduits were fabricated and used in conjunction with microgels containing two growth factors to treat complete neurotmesis in rats. The results showed that the utilization of dual growth factor microgels improved the migration and decreased the apoptosis of RSC96 cells while promoting the growth and formation of tubes in HUVECs. The utilization of dual growth factor microgels and chitosan-based conduits resulted in notable advancements in the regeneration and myelination of nerve fibers, recovery of neurons, alleviation of muscle atrophy and recovery of neuromotor function and nerve conduction. In conclusion, the use of dual growth factor AlgMA microgels in combination with chitosan-based conduits has the potential to significantly improve the effectiveness of nerve repair.
Collapse
Affiliation(s)
- Fengshi Zhang
- Department of Orthopedics and Trauma, Peking University People's Hospital, Beijing 100044, China; Key Laboratory of Trauma and Neural Regeneration, Peking University, Beijing 100044, China; National Center for Trauma Medicine, Beijing 100044, China; Beijing Laboratory of Trauma and Nerve Regeneration, Beijing 100044, China
| | - Xiaotong Wu
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Beijing 100044, China
| | - Qicheng Li
- Department of Orthopedics and Trauma, Peking University People's Hospital, Beijing 100044, China; Key Laboratory of Trauma and Neural Regeneration, Peking University, Beijing 100044, China; National Center for Trauma Medicine, Beijing 100044, China; Beijing Laboratory of Trauma and Nerve Regeneration, Beijing 100044, China
| | - Bo Ma
- Department of Orthopedics and Trauma, Peking University People's Hospital, Beijing 100044, China; Key Laboratory of Trauma and Neural Regeneration, Peking University, Beijing 100044, China; National Center for Trauma Medicine, Beijing 100044, China; Beijing Laboratory of Trauma and Nerve Regeneration, Beijing 100044, China
| | - Meng Zhang
- Department of Orthopedics and Trauma, Peking University People's Hospital, Beijing 100044, China; Key Laboratory of Trauma and Neural Regeneration, Peking University, Beijing 100044, China; National Center for Trauma Medicine, Beijing 100044, China; Beijing Laboratory of Trauma and Nerve Regeneration, Beijing 100044, China
| | - Wenjing Zhang
- Department of teaching and research, Shenzhen University General Hospital, Shenzhen 518055, China.
| | - Yuhui Kou
- Department of Orthopedics and Trauma, Peking University People's Hospital, Beijing 100044, China; Key Laboratory of Trauma and Neural Regeneration, Peking University, Beijing 100044, China; National Center for Trauma Medicine, Beijing 100044, China; Beijing Laboratory of Trauma and Nerve Regeneration, Beijing 100044, China.
| |
Collapse
|
6
|
Jin J, Luo B, Xuan S, Shen P, Jin P, Wu Z, Zheng Y. Degradable chitosan-based bioplastic packaging: Design, preparation and applications. Int J Biol Macromol 2024; 266:131253. [PMID: 38556240 DOI: 10.1016/j.ijbiomac.2024.131253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 03/13/2024] [Accepted: 03/28/2024] [Indexed: 04/02/2024]
Abstract
Food packaging is an essential part of food transportation, storage and preservation. Biodegradable biopolymers are a significant direction for the future development of food packaging materials. As a natural biological polysaccharide, chitosan has been widely concerned by researchers in the field of food packaging due to its excellent film-forming property, good antibacterial property and designability. Thus, the application research of chitosan-based food packaging films, coatings and aerogels has been greatly developed. In this review, recent advances on chitosan-based food packaging materials are summarized. Firstly, the development background of chitosan-based packaging materials was described, and then chitosan itself was introduced. In addition, the design, preparation and applications of films, coatings and aerogels in chitosan-based packaging for food preservation were discussed, and the advantages and disadvantages of each research in the development of chitosan-based packaging materials were analyzed. Finally, the application prospects, challenges and suggestions for solving the problems of chitosan-based packaging are summarized and prospected.
Collapse
Affiliation(s)
- Jing Jin
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Bodan Luo
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Simin Xuan
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Peng Shen
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Peng Jin
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhengguo Wu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
| | - Yonghua Zheng
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
| |
Collapse
|
7
|
Zein N, Yassin F, Ayoub HG, Elewa YHA, Mohamed SKA, Mahmoud MH, Elfeky M, Batiha GES, Zahran MH. In vivo investigation of the anti-liver fibrosis impact of Balanites aegyptiaca/ chitosan nanoparticles. Biomed Pharmacother 2024; 172:116193. [PMID: 38301419 DOI: 10.1016/j.biopha.2024.116193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/16/2024] [Accepted: 01/18/2024] [Indexed: 02/03/2024] Open
Abstract
Balanites aegyptiaca (B. aegyptiaca) is an African herb with traditional medical applications. Various pathogenic factors cause hepatic fibrosis and require novel treatment alternatives. Nanoformulation-based natural products can overcome the available drug problems by increasing the efficacy of natural products targeting disease markers. The current study investigated B. aegyptiaca methanolic extract using high-pressure liquid chromatography (HPLC), and B. aegyptiaca/chitosan nanoparticles were prepared. In vivo, evaluation tests were performed to assess the curative effect of the successfully prepared B. aegyptiaca/chitosan nanoparticles. For 30 days, the rats were divided into six groups, typical and fibrosis groups, where the liver fibrosis groups received B. aegyptiaca extract, silymarin, chitosan nanoparticles, and B. aegyptiaca/chitosan nanoparticles daily. In the current investigation, phenolic molecules are the major compounds detected in B. aegyptiaca extract. UV showed that the prepared B. aegyptiaca /chitosan nanoparticles had a single peak at 280 nm, a particle size of 35.0 ± 6.0 nm, and a negative charge at - 8.3 mV. The animal studies showed that the synthetic B. aegyptiaca/chitosan nanoparticles showed substantial anti-fibrotic protective effects against CCl4-induced hepatic fibrosis in rats when compared with other groups through optimization of biochemical and oxidative markers, improved histological changes, and modulated the expression of Col1a1, Acta2 and Cxcl9 genes, which manage liver fibrosis. In conclusion, the current research indicated that the prepared B. aegyptiaca/chitosan nanoparticles improved histological structure and significantly enhanced the biochemical and genetic markers of liver fibrosis in an animal model.
Collapse
Affiliation(s)
- Nabila Zein
- Biochemistry Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Fathy Yassin
- Chemistry Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Heba G Ayoub
- Biochemistry Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Yaser Hosny Ali Elewa
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt; Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan.
| | - Sherif Kh A Mohamed
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Mohamed H Mahmoud
- Department of Biochemistry, College of Science, King Saud University, Kingdom of Saudi Arabia
| | - Mohamed Elfeky
- Department of Biochemistry, Faculty of Veterinary Medicine, Alexandria University, Alexandria 21526, Egypt
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhur University, Damanhur 22511, AlBeheira, Egypt
| | - Mahmoud Hosny Zahran
- Internal Medicine Department, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt
| |
Collapse
|
8
|
Kumi M, Wang T, Ejeromedoghene O, Wang J, Li P, Huang W. Exploring the Potentials of Chitin and Chitosan-Based Bioinks for 3D-Printing of Flexible Electronics: The Future of Sustainable Bioelectronics. SMALL METHODS 2024:e2301341. [PMID: 38403854 DOI: 10.1002/smtd.202301341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Indexed: 02/27/2024]
Abstract
Chitin and chitosan-based bioink for 3D-printed flexible electronics have tremendous potential for innovation in healthcare, agriculture, the environment, and industry. This biomaterial is suitable for 3D printing because it is highly stretchable, super-flexible, affordable, ultrathin, and lightweight. Owing to its ease of use, on-demand manufacturing, accurate and regulated deposition, and versatility with flexible and soft functional materials, 3D printing has revolutionized free-form construction and end-user customization. This study examined the potential of employing chitin and chitosan-based bioinks to build 3D-printed flexible electronic devices and optimize bioink formulation, printing parameters, and postprocessing processes to improve mechanical and electrical properties. The exploration of 3D-printed chitin and chitosan-based flexible bioelectronics will open new avenues for new flexible materials for numerous industrial applications.
Collapse
Affiliation(s)
- Moses Kumi
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, Shaanxi, 710072, P. R. China
| | - Tengjiao Wang
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, Shaanxi, 710072, P. R. China
| | - Onome Ejeromedoghene
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu, 215123, P. R. China
| | - Junjie Wang
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, Shaanxi, 710072, P. R. China
| | - Peng Li
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, Shaanxi, 710072, P. R. China
| | - Wei Huang
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, Shaanxi, 710072, P. R. China
| |
Collapse
|
9
|
Sun X, Wang Y, Yu J, Wei Q, Ren X. Study on the deacetylation and mechanism of chitin in natural deep eutectic solvent. Int J Biol Macromol 2024; 255:127698. [PMID: 37949277 DOI: 10.1016/j.ijbiomac.2023.127698] [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: 04/20/2023] [Revised: 09/25/2023] [Accepted: 10/17/2023] [Indexed: 11/12/2023]
Abstract
A large number of hydrogen bonds is the main reason for hindering the dissolution and reaction of chitin, and a mild and green deacetylation method to prepare chitosan for a wider range of applications is urgent. As a non-toxic and degradable green solvent, the deep eutectic solvent can effectively interfere with the hydrogen bond network of chitin, making chitin more susceptible to other solvents. Therefore, a NADES system consisting of betaine and glycerol was proposed for application in the deacetylation reaction of chitin to facilitate further attack of N-acetyl groups by low concentrations of NaOH. After optimizing the reaction conditions, chitosan with 83.77 % deacetylation was prepared, requiring only a concentration of 25 wt% NaOH. The analysis of the product chitosan showed that NADES could not only effectively improve the degree of deacetylation, but also reduce the degree of damage to the molecular weight by alkali. In addition, the potential mechanisms involved in the deacetylation process by NADES were explored. The nature of the reaction was verified by FT-IR, XRD and theoretical calculations as the process of opening intra/intermolecular hydrogen bonds of chitin by NADES. More importantly, experimental and in-depth theoretical studies provide a reference for the green preparation of chitosan.
Collapse
Affiliation(s)
- Xiangyu Sun
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150000, China; School of Marine Science and Technology, Harbin Institute of Technology, Weihai, Shandong 264209, China
| | - Yiruo Wang
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai, Shandong 264209, China
| | - Jiaming Yu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150000, China; School of Marine Science and Technology, Harbin Institute of Technology, Weihai, Shandong 264209, China
| | - Qifeng Wei
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai, Shandong 264209, China.
| | - Xiulian Ren
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150000, China; School of Marine Science and Technology, Harbin Institute of Technology, Weihai, Shandong 264209, China.
| |
Collapse
|
10
|
Zeng H, Jin T, Shi S, Liu L, Guo H, Xie L, Chai X, Xu K, Du G, Zhang L. Boiling water resistant fully bio-based adhesive made from maleated chitosan and glucose with excellent performance. Int J Biol Macromol 2023; 253:127446. [PMID: 37839593 DOI: 10.1016/j.ijbiomac.2023.127446] [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: 06/06/2023] [Revised: 10/05/2023] [Accepted: 10/13/2023] [Indexed: 10/17/2023]
Abstract
Biomass resources are widely considered potential alternatives to formaldehyde-based wood adhesives because of their abundance. In this study, an environmentally friendly biomass adhesive, carboxylated chitosan-glucose (CSC-G), was prepared using chitosan, maleic anhydride, and glucose. The structure and water resistance of the adhesive were analyzed in detail. Maleic anhydride act as a bridge connecting chitosan and glucose, giving the adhesive good water solubility and resistance. The improved water resistance of the CSC-G adhesive was attributed to the formation of covalent cross-linked structures and an increased degree of system cross-linking. Additionally, the curing temperature of the CSC-G adhesive was superior to those of previously reported polyester adhesives. This study not only expands the application scope of fishery waste, but also demonstrates its great potential for the preparation of high-performance plywood.
Collapse
Affiliation(s)
- Heyang Zeng
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, Yunnan, China
| | - Tao Jin
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, Yunnan, China
| | - Senlei Shi
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, Yunnan, China
| | - Li Liu
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, Yunnan, China
| | - Haiyang Guo
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China.
| | - Linkun Xie
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, Yunnan, China
| | - Xijuan Chai
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, Yunnan, China
| | - Kaimeng Xu
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, Yunnan, China
| | - Guanben Du
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, Yunnan, China.
| | - Lianpeng Zhang
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, Yunnan, China.
| |
Collapse
|
11
|
Flores-Espinoza AI, Garcia-Contreras R, Guzman-Rocha DA, Aranda-Herrera B, Chavez-Granados PA, Jurado CA, Alfawaz YF, Alshabib A. Gelatin-Chitosan Hydrogel Biological, Antimicrobial and Mechanical Properties for Dental Applications. Biomimetics (Basel) 2023; 8:575. [PMID: 38132514 PMCID: PMC10742194 DOI: 10.3390/biomimetics8080575] [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: 09/12/2023] [Revised: 11/26/2023] [Accepted: 11/28/2023] [Indexed: 12/23/2023] Open
Abstract
Chitosan, a natural polysaccharide sourced from crustaceans and insects, is often used with hydrogels in wound care. Evaluating its cytotoxicity and antimicrobial properties is crucial for its potential use in dentistry. OBJECTIVE To investigate the mechanical properties of gelatin hydrogels based on decaethylated chitosan and antimicrobial activity against Streptococcus mutans and their biological effects with stem cells from apical papilla (SCAPs). MATERIAL AND METHODS Gelatin-chitosan hydrogels were synthesized at concentrations of 0%, 0.2% and 0.5%. Enzymatic and hydrolytic degradation, along with swelling capacity, was assessed. Fourier transform infrared spectroscopy (FTIR) analysis was employed to characterize the hydrogels. The interaction between hydrogels and SCAPs was examined through initial adhesion and cell proliferation at 24 and 48 h, using the Thiazolyl Blue Tetrazolium Bromide (MTT assay). The antimicrobial effect was evaluated using agar diffusion and a microdilution test against S. mutans. Uniaxial tensile strength (UTS) was also measured to assess the mechanical properties of the hydrogels. RESULTS The hydrogels underwent hydrolytic and enzymatic degradation at 30, 220, 300 min and 15, 25, 30 min, respectively. Significantly, (p < 0.01) swelling capacity occurred at 20, 40, 30 min, respectively. Gelatin-chitosan hydrogels' functional groups were confirmed using vibrational pattern analysis. SCAPs proliferation corresponded to 24 h = 73 ± 2%, 82 ± 2%, 61 ± 6% and 48 h = 83 ± 11%, 86 ± 2%, 44 ± 2%, respectively. The bacterial survival of hydrogel interaction was found to be 96 ± 1%, 17 ± 1.5% (p < 0.01) and 1 ± 0.5% (p < 0.01), respectively. UTS showed enhanced (p < 0.05) mechanical properties with chitosan presence. CONCLUSION Gelatin-chitosan hydrogels displayed favorable degradation, swelling capacity, mild dose-dependent cytotoxicity, significant proliferation with stem cells from apical papilla (SCAPs), substantial antimicrobial effects against S. mutans and enhanced mechanical properties. These findings highlight their potential applications as postoperative care dressings.
Collapse
Affiliation(s)
- Andrea Itzamantul Flores-Espinoza
- Interdisciplinary Research Laboratory (LII), Nanostructures and Biomaterials Area, National School of Higher Studies (ENES), Leon Unit, National Autonomous University of Mexico (UNAM), Leon 37689, Mexico; (A.I.F.-E.); (R.G.-C.); (D.A.G.-R.); (B.A.-H.); (P.A.C.-G.)
| | - Rene Garcia-Contreras
- Interdisciplinary Research Laboratory (LII), Nanostructures and Biomaterials Area, National School of Higher Studies (ENES), Leon Unit, National Autonomous University of Mexico (UNAM), Leon 37689, Mexico; (A.I.F.-E.); (R.G.-C.); (D.A.G.-R.); (B.A.-H.); (P.A.C.-G.)
| | - Dulce Araceli Guzman-Rocha
- Interdisciplinary Research Laboratory (LII), Nanostructures and Biomaterials Area, National School of Higher Studies (ENES), Leon Unit, National Autonomous University of Mexico (UNAM), Leon 37689, Mexico; (A.I.F.-E.); (R.G.-C.); (D.A.G.-R.); (B.A.-H.); (P.A.C.-G.)
| | - Benjamin Aranda-Herrera
- Interdisciplinary Research Laboratory (LII), Nanostructures and Biomaterials Area, National School of Higher Studies (ENES), Leon Unit, National Autonomous University of Mexico (UNAM), Leon 37689, Mexico; (A.I.F.-E.); (R.G.-C.); (D.A.G.-R.); (B.A.-H.); (P.A.C.-G.)
| | - Patricia Alejandra Chavez-Granados
- Interdisciplinary Research Laboratory (LII), Nanostructures and Biomaterials Area, National School of Higher Studies (ENES), Leon Unit, National Autonomous University of Mexico (UNAM), Leon 37689, Mexico; (A.I.F.-E.); (R.G.-C.); (D.A.G.-R.); (B.A.-H.); (P.A.C.-G.)
| | - Carlos A. Jurado
- Department of Prosthodontics, The University of Iowa College of Dentistry and Dental Clinics, Iowa City, IA 52242, USA;
| | - Yasser F. Alfawaz
- Department of Restorative Dentistry, King Saud University College of Dentistry, Riyadh 11545, Saudi Arabia;
| | - Abdulrahman Alshabib
- Department of Restorative Dentistry, King Saud University College of Dentistry, Riyadh 11545, Saudi Arabia;
| |
Collapse
|
12
|
Pașcu D, Nechifor AC, Grosu VA, Oprea OC, Tanczos SK, Man GT, Dumitru F, Grosu AR, Nechifor G. Hydrogen Sulphide Sequestration with Metallic Ions in Acidic Media Based on Chitosan/sEPDM/Polypropylene Composites Hollow Fiber Membranes System. MEMBRANES 2023; 13:350. [PMID: 36984736 PMCID: PMC10057485 DOI: 10.3390/membranes13030350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/10/2023] [Accepted: 03/14/2023] [Indexed: 06/18/2023]
Abstract
This paper presents the preparation and characterization of composite membranes based on chitosan (Chi), sulfonated ethylene-propylene-diene terpolymer (sEPDM), and polypropylene (PPy), and designed to capture hydrogen sulfide. The Chi/sEPDM/PPy composite membranes were prepared through controlled evaporation of a toluene dispersion layer of Chi:sEPDM 1;1, w/w, deposited by immersion and under a slight vacuum (100 mmHg) on a PPy hollow fiber support. The composite membranes were characterized morphologically, structurally, and thermally, but also from the point of view of their performance in the process of hydrogen sulfide sequestration in an acidic media solution with metallic ion content (Cu2+, Cd2+, Pb2+, and/or Zn2+). The operational parameters of the pertraction were the pH, pM, matrix gas flow rate, and composition. The results of pertraction from synthetic gases mixture (nitrogen, methane, carbon dioxide) indicated an efficient removal of hydrogen sulfide through the prepared composite membranes, as well as its immobilization as sulfides. The sequestration and the recuperative separation, as sulfides from an acid medium, of the hydrogen sulfide reached up to 96%, decreasing in the order: CuS > PbS > CdS > ZnS.
Collapse
Affiliation(s)
- Dumitru Pașcu
- Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania
| | - Aurelia Cristina Nechifor
- Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania
| | - Vlad-Alexandru Grosu
- Department of Electronic Technology and Reliability, Faculty of Electronics, Telecommunications and Information Technology, University Politehnica of Bucharest, 061071 Bucharest, Romania
| | - Ovidiu Cristian Oprea
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, University Politehnica of Bucharest, 011061 Bucharest, Romania
| | - Szidonia-Katalin Tanczos
- Department of Bioengineering, University Sapientia of Miercurea-Ciuc, 500104 Miercurea-Ciuc, Romania
| | - Geani Teodor Man
- Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania
| | - Florina Dumitru
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, University Politehnica of Bucharest, 011061 Bucharest, Romania
| | - Alexandra Raluca Grosu
- Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania
| | - Gheorghe Nechifor
- Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania
| |
Collapse
|
13
|
Luo X, Peng Y, Qin Z, Tang W, Duns GJ, Dessie W, He N, Tan Y. Chitosan-based packaging films with an integrated antimicrobial peptide: Characterization, in vitro release and application to fresh pork preservation. Int J Biol Macromol 2023; 231:123209. [PMID: 36639078 DOI: 10.1016/j.ijbiomac.2023.123209] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 01/02/2023] [Accepted: 01/06/2023] [Indexed: 01/12/2023]
Abstract
Chitosan (CS) films were developed incorporating peptide HX-12C. The films were studied to determine their microstructures, physical properties, release properties of peptide HX-12C and functional properties. The results indicated that there may be hydrogen bonding interactions between CS and peptide HX-12C, thereby creating a homogeneous internal microstructure and lower crystallinity (10.8-12.8 %). Compared with CS film, CS-HX-12C films displayed lower light transmission, MC (20.8-19.9 %), WVP (8.82-8.59 × 10-11·g·m-1·s-1·Pa-1), OTR (0.015-0.037 cc/(m2.day)) and higher WS (15.7-32.4 %) values. Moreover, controlled-release experiments showed that pH, ionic strength and temperature could all significantly affect the release of peptide HX-12C from the films. Finally, the increase of pH value and TVC and lipid oxidation of fresh pork were delayed due to the treatment with CS-2%HX-12C film. However, incorporating peptide HX-12C into CS films did not improve the mechanical properties of the films and their effects against protein oxidation. Our results suggest that the CS-based antimicrobial packaging films integrated with peptide HX-12C exhibit the potential for fresh pork preservation.
Collapse
Affiliation(s)
- Xiaofang Luo
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China; Hunan Engineering Technology Research Center for Comprehensive Development and Utilization of Biomass Resources, College of Chemistry and Bioengineering, Hunan University of Science and Engineering, 425199 Yongzhou, China
| | - Yafang Peng
- Hunan Engineering Technology Research Center for Comprehensive Development and Utilization of Biomass Resources, College of Chemistry and Bioengineering, Hunan University of Science and Engineering, 425199 Yongzhou, China
| | - Zuodong Qin
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China; Hunan Engineering Technology Research Center for Comprehensive Development and Utilization of Biomass Resources, College of Chemistry and Bioengineering, Hunan University of Science and Engineering, 425199 Yongzhou, China.
| | - Wufei Tang
- Hunan Engineering Technology Research Center for Comprehensive Development and Utilization of Biomass Resources, College of Chemistry and Bioengineering, Hunan University of Science and Engineering, 425199 Yongzhou, China
| | - Gregory J Duns
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China; Hunan Engineering Technology Research Center for Comprehensive Development and Utilization of Biomass Resources, College of Chemistry and Bioengineering, Hunan University of Science and Engineering, 425199 Yongzhou, China
| | - Wubliker Dessie
- Hunan Engineering Technology Research Center for Comprehensive Development and Utilization of Biomass Resources, College of Chemistry and Bioengineering, Hunan University of Science and Engineering, 425199 Yongzhou, China
| | - Nongyue He
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Yimin Tan
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China.
| |
Collapse
|
14
|
Stefanowska K, Woźniak M, Dobrucka R, Ratajczak I. Chitosan with Natural Additives as a Potential Food Packaging. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1579. [PMID: 36837209 PMCID: PMC9962944 DOI: 10.3390/ma16041579] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/07/2023] [Accepted: 02/10/2023] [Indexed: 06/18/2023]
Abstract
Recently, the development of materials based on natural polymers have been observed. This is the result of increasing environmental degradation, as well as increased awareness and consumer expectations. Many industries, especially the packaging industry, face challenges resulting from legal regulations. Chitin is the most common biopolymer right after cellulose and is used to produce chitosan. Due to the properties of chitosan, such as non-toxicity, biocompatibility, as well as antimicrobial properties, chitosan-based materials are used in many industries. Many studies have been conducted to determine the suitability of chitosan materials as food packaging, and their advantages and limitations have been identified. Thanks to the possibility of modifying the chitosan matrix by using natural additives, it is possible to strengthen the antioxidant and antimicrobial activity of chitosan films, which means that, in the near future, chitosan-based materials will be a more environmentally friendly alternative to the plastic packaging used so far. The article presents literature data on the most commonly used natural additives, such as essential oils, plant extracts, or polysaccharides, and their effects on antimicrobial, antioxidant, mechanical, barrier, and optical properties. The application of chitosan as a natural biopolymer in food packaging extends the shelf-life of various food products while simultaneously reducing the use of synthetic plastics, which in turn will have a positive impact on the natural environment. However, further research on chitosan and its combinations with various materials is still needed to extent the application of chitosan in food packaging and bring its application to industrial levels.
Collapse
Affiliation(s)
- Karolina Stefanowska
- Department of Chemistry, Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, Wojska Polskiego 75, 60625 Poznań, Poland
| | - Magdalena Woźniak
- Department of Chemistry, Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, Wojska Polskiego 75, 60625 Poznań, Poland
| | - Renata Dobrucka
- Department of Industrial Products and Packaging Quality, Institute of Quality Science, Poznań University of Economics and Business, al. Niepodległości 10, 61875 Poznań, Poland
| | - Izabela Ratajczak
- Department of Chemistry, Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, Wojska Polskiego 75, 60625 Poznań, Poland
| |
Collapse
|
15
|
Zhang C, Zhao J, Wang W, Geng H, Wang Y, Gao B. Current advances in the application of nanomedicine in bladder cancer. Biomed Pharmacother 2023; 157:114062. [PMID: 36469969 DOI: 10.1016/j.biopha.2022.114062] [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: 11/01/2022] [Revised: 11/22/2022] [Accepted: 12/01/2022] [Indexed: 12/03/2022] Open
Abstract
Bladder cancer is the most common malignant tumor of the urinary system, however there are several shortcomings in current diagnostic and therapeutic measures. In terms of diagnosis, the diagnostic tools currently available are not sufficiently sensitive and specific, and imaging is poor, leading to misdiagnosis and missed diagnoses, which can delay treatment. In terms of treatment, current treatment options include surgery, chemotherapy, immunotherapy, gene therapy, and other emerging treatments, as well as combination therapies. However, the main reasons for poor efficacy and side effects during treatment are the lack of specificity and targeting, improper dose control of drugs and photosensitizers, damage to normal cells while attacking cancer cells, and difficulty in delivering siRNA to cancer cells. Nanomedicine is an emerging approach. Among the many nanotechnologies applied in the medical field, nanocarrier-assisted drug delivery systems have attracted extensive research interest due to their great translational value. Well-designed nanoparticles can deliver agents or drugs to specific cell types within target organs through active targeting or passive targeting (enhanced permeability and retention), which allows for imaging, diagnosis, as well as treatment of cancer. This paper reviews advances in the application of various nanocarriers and their advantages and drawbacks, with a focus on their use in the diagnosis and treatment of bladder cancer.
Collapse
Affiliation(s)
- Chi Zhang
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, China
| | - Jiang Zhao
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, China
| | - Weihao Wang
- Department of Plastic and Reconstructive Surgery, The First Hospital of Jilin University, Changchun 130021, China
| | - Huanhuan Geng
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, China
| | - Yinzhe Wang
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, China
| | - Baoshan Gao
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, China.
| |
Collapse
|
16
|
Syed MH, Zahari MAKM, Khan MMR, Beg MDH, Abdullah N. An overview on recent biomedical applications of biopolymers: Their role in drug delivery systems and comparison of major systems. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
17
|
Patentology of chitinous biomaterials. Part II: chitosan. Carbohydr Polym 2022; 301:120224. [DOI: 10.1016/j.carbpol.2022.120224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 09/27/2022] [Accepted: 10/11/2022] [Indexed: 11/23/2022]
|
18
|
Păușescu I, Dreavă DM, Bîtcan I, Argetoianu R, Dăescu D, Medeleanu M. Bio-Based pH Indicator Films for Intelligent Food Packaging Applications. Polymers (Basel) 2022; 14:polym14173622. [PMID: 36080695 PMCID: PMC9460188 DOI: 10.3390/polym14173622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 08/26/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
The widespread concerns about the environmental problems caused by conventional plastic food packaging and food waste led to a growing effort to develop active and intelligent systems produced from renewable biodegradable polymers for food packaging applications. Among intelligent systems, the most widely used are pH indicators, which are generally based on a pH-sensitive dye incorporated into a solid support. The objective of this study was to develop new intelligent systems based on renewable biodegradable polymers and a new bio-inspired pH-sensitive dye. The structure of the dye was elucidated through FT-IR and 1D and 2D NMR spectroscopic analyses. UV-VIS measurements of the dye solutions at various pH values proved their halochromic properties. Their toxicity was evaluated through theoretical calculations, and no toxicity risks were found. The new anthocyanidin was used for the development of biodegradable intelligent systems based on chitosan blends. The obtained polymeric films were characterized through UV-VIS and FT-IR spectroscopy. Their thermal properties were assessed through a thermogravimetric analysis, which showed a better stability of chitosan–PVA–dye and chitosan–starch–dye films compared to those of chitosan–cellulose–dye films and the dye itself. The films’ sensitivity to pH variations was evaluated through immersion in buffer solutions with pH values ranging from 2 to 12, and visible color changes were observed.
Collapse
|
19
|
Fontana R, Marconi PCR, Caputo A, Gavalyan VB. Novel Chitosan-Based Schiff Base Compounds: Chemical Characterization and Antimicrobial Activity. Molecules 2022; 27:molecules27092740. [PMID: 35566088 PMCID: PMC9102824 DOI: 10.3390/molecules27092740] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 04/20/2022] [Accepted: 04/20/2022] [Indexed: 11/17/2022] Open
Abstract
Chitosan (CS) and its derivatives are receiving considerable attention for their great biocompatibility and broad-spectrum activities in many fields. In this work, we aimed to characterize the antimicrobial activity of novel chitosan Schiff bases (CSSB). CS was synthesized by double deacetylation of chitin (Cn) after its extraction from the armors of crustaceans Astacus leptodactylus, and CSSB-1 and CSSB-2 were synthesized by interaction of CS with 4-(2-chloroethyl) benzaldehyde (aldehyde-1) and 4-(bromoethyl) benzaldehyde (aldehyde-2), respectively, at room temperature. The synthesized compounds were characterized by elemental analysis, gel permeation chromatography (GPC), infrared spectroscopy (FTIR), thermogravimetry (TG), and differential scanning calorimetry (DSC). The antimicrobial activity against Gram-positive (Staphylococcus aureus) and Gram-negative (Pseudomonas aeruginosa) bacteria and against yeasts (Candida albicans) was significantly increased due to their higher solubility as compared to unmodified CS opening perspectives for the use of these compounds for antimicrobial prevention in different fields as, for example, food industry, cosmetics, or restoration.
Collapse
Affiliation(s)
- Riccardo Fontana
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Fossato di Mortara 64b, 44121 Ferrara, Italy; (R.F.); (P.C.R.M.)
| | - Peggy Carla Raffaella Marconi
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Fossato di Mortara 64b, 44121 Ferrara, Italy; (R.F.); (P.C.R.M.)
| | - Antonella Caputo
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Fossato di Mortara 64b, 44121 Ferrara, Italy; (R.F.); (P.C.R.M.)
- Correspondence: (A.C.); (V.B.G.)
| | - Vasak B. Gavalyan
- A.I. Alikhanyan National Science Laboratory, Yerevan Physics Institute, 2-Alikhanyan Brothers St., Yerevan 0036, Armenia
- Correspondence: (A.C.); (V.B.G.)
| |
Collapse
|
20
|
Kiselevsky DB, Il'ina AV, Lunkov AP, Varlamov VP, Samuilov VD. Investigation of the Antioxidant Properties of the Quaternized Chitosan Modified with a Gallic Acid Residue Using Peroxidase that Produces Reactive Oxygen Species. BIOCHEMISTRY. BIOKHIMIIA 2022; 87:141-149. [PMID: 35508903 DOI: 10.1134/s0006297922020067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/15/2021] [Accepted: 12/22/2021] [Indexed: 06/14/2023]
Abstract
Chitosan modified with a (2-hydroxy-3-trimethylammonium) propyl group and gallic acid residue, or quaternized chitosan with gallic acid (QCG), was synthesized. Antioxidant properties of the produced QCG have been investigated. Peroxidase in combination with NADH and salicyl hydroxamate (SHAM) caused consumption of oxygen and production of H2O2 in aqueous solution as a result of O2 reduction in the peroxidase-oxidase reactions. The rates of O2 consumption and H2O2 generation were reduced in the presence of QCG. The antioxidant propyl gallate (PG) and superoxide dismutase (SOD) had the same effect, but not the quaternized chitosan (QC) without gallic acid. The effect of chitosan derivatives on the production of reactive oxygen species (ROS) in the cells of pea leaf epidermis and on the cell death detected by the destruction of cell nuclei, was investigated. QCG, QC, and SOD had no effect, while PG decreased the rate of ROS generation in the cells of the epidermis, which was induced by NADH with SHAM or by menadione. QCG and QC prevented destruction of the guard cell nuclei in the pea leaf epidermis that was caused by NADH with SHAM or by KCN. SOD had no effect on the destruction of nuclei, while the effect of PG depended on the inducer of the cell death. Suppression of the destruction of guard cell nuclei by chitosan derivatives was associated not with their antioxidant effect, but with the disruption of the plasma membrane of the cells. The results obtained have shown that QCG exhibits antioxidant properties in solutions, but does not prevent generation of ROS in the plant cells. The mechanism of antioxidant effect of QCG is similar to that of PG and SOD.
Collapse
Affiliation(s)
- Dmitry B Kiselevsky
- Department of Immunology, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia.
| | - Alla V Il'ina
- Laboratory of Biopolymer Engineering, Skryabin Institute of Bioengineering, Research Center of Biotechnology, Russian Academy of Sciences, Moscow, 119071, Russia
| | - Alexey P Lunkov
- Laboratory of Biopolymer Engineering, Skryabin Institute of Bioengineering, Research Center of Biotechnology, Russian Academy of Sciences, Moscow, 119071, Russia
| | - Valery P Varlamov
- Laboratory of Biopolymer Engineering, Skryabin Institute of Bioengineering, Research Center of Biotechnology, Russian Academy of Sciences, Moscow, 119071, Russia
| | - Vitaly D Samuilov
- Department of Immunology, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
| |
Collapse
|
21
|
Thumwong A, Poltabtim W, Kerdsang P, Saenboonruang K. Roles of Chitosan as Bio-Fillers in Radiation-Vulcanized Natural Rubber Latex and Hybrid Radiation and Peroxide-Vulcanized Natural Rubber Latex: Physical/Mechanical Properties under Thermal Aging and Biodegradability. Polymers (Basel) 2021; 13:polym13223940. [PMID: 34833239 PMCID: PMC8618650 DOI: 10.3390/polym13223940] [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: 10/20/2021] [Revised: 10/29/2021] [Accepted: 11/09/2021] [Indexed: 11/20/2022] Open
Abstract
Although natural rubber was regarded as biodegradable, the degradation is a time-consuming process that could take weeks or months for any degradation or substantial weight loss to be observable, resulting in the need for novel processes/methods to accelerate the rubber degradation. As a result, this work investigated the potential utilization of chitosan (CS) as a biodegradation enhancer for radiation-vulcanized natural rubber latex (R-VNRL) and hybrid radiation and peroxide-vulcanized natural rubber latex (RP-VNRL) composites, with varying CS contents (0, 2, 4, or 6 phr). The R-VNRL samples were prepared using 15 kGy gamma irradiation, while the RP-VNRL samples were prepared using a combination of 0.1 phr tert-butyl hydroperoxide (t-BHPO) and 10 kGy gamma irradiation. The properties investigated were biodegradability in the soil and the morphological, chemical, mechanical, and physical properties, both before and after undergoing thermal aging. The results indicated that the biodegradability of both the R-VNRL and RP-VNRL composites was enhanced with the addition of CS, as evidenced by increases in the percentage weight loss (% weight loss) after being buried in soil for 8 weeks from 6.5 ± 0.1% and 6.4 ± 0.1% in a pristine R-VNRL and RP-VNRL samples, respectively, to 10.5 ± 0.1% and 10.2 ± 0.1% in 6-pph CS/R-VNRL and 6-pph CS/RP-VNRL composites, respectively, indicating the biodegradation enhancement of approximately 60%. In addition, the results revealed that the addition of CS could increase the value of tensile modulus by 119%, while decrease the values of tensile strength and elongation at break by 50% and 43%, respectively, in the specimens containing 6-phr CS. In terms of the color appearances, the samples were lighter and yellower after the addition of CS, as evidenced by the noticeably increased L* and b* values, based on the CIE L*a*b* color space system. Furthermore, the investigation into the effects of thermal aging showed that the overall tensile properties for both curing systems were reduced, while varying degrees of color change were observed, with the pristine R-VNRL and RP-VNRL samples having more pronounced degradation/changes for both properties. In conclusion, the overall results suggested that CS had great potential to be applied as a bio-filler in R-VNRL and RP-VNRL composites to effectively promote the biodegradability, environmental friendliness, and resistance to thermal degradation of the composites.
Collapse
Affiliation(s)
- Arkarapol Thumwong
- Department of Applied Radiation and Isotopes, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand; (A.T.); (W.P.); (P.K.)
- Department of Materials Science, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
| | - Worawat Poltabtim
- Department of Applied Radiation and Isotopes, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand; (A.T.); (W.P.); (P.K.)
| | - Patcharaporn Kerdsang
- Department of Applied Radiation and Isotopes, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand; (A.T.); (W.P.); (P.K.)
| | - Kiadtisak Saenboonruang
- Department of Applied Radiation and Isotopes, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand; (A.T.); (W.P.); (P.K.)
- Specialized Center of Rubber and Polymer Materials in Agriculture and Industry (RPM), Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
- Special Research Unit of Radiation Technology for Advanced Materials, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
- Correspondence: ; Tel.: +662-562-5555 (ext. 646219)
| |
Collapse
|