1
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Li ZC, Su MY, Yuan XY, Lv HQ, Feng R, Wu LJ, Gao XP, An YX, Li ZW, Li MY, Zhao GM, Wang XP. Green fabrication of modified lignin/zeolite/chitosan-based composite membranes for preservation of perishable foods. Food Chem 2024; 460:140713. [PMID: 39116775 DOI: 10.1016/j.foodchem.2024.140713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 07/12/2024] [Accepted: 07/28/2024] [Indexed: 08/10/2024]
Abstract
Chitosan, as a kind of naturally occurring green and degradable material for the preservation of perishable foods, was investigated in this study with the objective of enhancing its preservation performances. Herein, lignin was modified using the solvent fractionation method (modified lignin, ML, including ML1-ML3), while natural clinoptilolite zeolite was modified using the alkali modification method (modified clinoptilolite zeolite, MCZ, including MCZ1-MCZ5). After optimizing the conditions, it was discovered that incorporating both ML3 and MCZ3 into pure chitosan-based membranes might be conducive to fabricate chitosan-based composite membranes for the preservation of perishable foods. As-prepared composite membranes possessed better visible light transmittance, antioxidant activity, and carbon dioxide/oxygen selectivity, resulting in improved preservation effects on the model perishable foods such as bananas, cherry tomatoes, and cheeses. These findings might indicate promising applications for chitosan-based composite membranes with modified lignin and zeolite in the field of eco-friendly degradable materials for the preservation of perishable foods.
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Affiliation(s)
- Zhan-Chao Li
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China; Henan Key Laboratory of Meat Processing and Quality Safety Control, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Meng-Yao Su
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China; Henan Key Laboratory of Meat Processing and Quality Safety Control, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Xiao-Yu Yuan
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China; Henan Key Laboratory of Meat Processing and Quality Safety Control, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Hai-Qing Lv
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China; Henan Key Laboratory of Meat Processing and Quality Safety Control, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Rui Feng
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China; Henan Key Laboratory of Meat Processing and Quality Safety Control, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Li-Jie Wu
- College of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Xiao-Ping Gao
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China; Henan Key Laboratory of Meat Processing and Quality Safety Control, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Yan-Xia An
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Zhan-Wei Li
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, People's Republic of China.
| | - Miao-Yun Li
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China; Henan Key Laboratory of Meat Processing and Quality Safety Control, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Gai-Ming Zhao
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China; Henan Key Laboratory of Meat Processing and Quality Safety Control, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Xiao-Peng Wang
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China; Henan Key Laboratory of Meat Processing and Quality Safety Control, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China.
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2
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Hefni HHH. Functional chitosan surfactants for corrosion inhibition in petroleum industry. Int J Biol Macromol 2024; 278:134704. [PMID: 39147343 DOI: 10.1016/j.ijbiomac.2024.134704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 07/31/2024] [Accepted: 08/11/2024] [Indexed: 08/17/2024]
Abstract
Chitosan is a natural biodegradable biopolymer, and the structure of its unit is 2-amino-d-glucopyranose that has been it more attractive to applied as natural corrosion inhibitor of metals for different area. Functionalization chitosan by surfactant is necessary to improve some of its properties such as solubility, surface activity, and corrosion inhibition efficiency. Corrosion of metals is a global problem particularly in petroleum industry field needs to favorably inhibition process using environmentally friendly inhibitors such chitosan. In this work, it was presented on researches which taken chitosan functionalized by different types of surfactants as green corrosion inhibitor of metals in petroleum field. It was concluded from displayed researches data that functionalization of chitosan by surfactant could be on three categories; cationic, anionic and nonionic form. Otherwise, the unsaturated chain, benzene rings, and quaternary ammonium groups greatly increase the inhibition efficiency compared to hydrophobic chains. Furthermore, the nanoparticles of chitosan nonionic surfactant or those assembled on silver nanoparticles exhibited high inhibition efficiency. The inhibition performance of chitosan surfactant categories are more effective even at lower concentrations, and form a protective film onto metal surface, as well as and the inhibitor adsorption mechanism is mostly mixed type and obey Langmuir model.
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Affiliation(s)
- Hassan H H Hefni
- Polymers Lab, Petrochemicals Department, Egyptian Petroleum Research Institute (EPRI), Cairo, Egypt.
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3
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Naghib SM, Ahmadi B, Mikaeeli Kangarshahi B, Mozafari MR. Chitosan-based smart stimuli-responsive nanoparticles for gene delivery and gene therapy: Recent progresses on cancer therapy. Int J Biol Macromol 2024; 278:134542. [PMID: 39137858 DOI: 10.1016/j.ijbiomac.2024.134542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 08/02/2024] [Accepted: 08/04/2024] [Indexed: 08/15/2024]
Abstract
Recent cancer therapy research has found that chitosan (Ch)-based nanoparticles show great potential for targeted gene delivery. Chitosan, a biocompatible and biodegradable polymer, has exceptional properties, making it an ideal carrier for therapeutic genes. These nanoparticles can respond to specific stimuli like pH, temperature, and enzymes, enabling precise delivery and regulated release of genes. In cancer therapy, these nanoparticles have proven effective in delivering genes to tumor cells, slowing tumor growth. Adjusting the nanoparticle's surface, encapsulating protective agents, and using targeting ligands have also improved gene delivery efficiency. Smart nanoparticles based on chitosan have shown promise in improving outcomes by selectively releasing genes in response to tumor conditions, enhancing targeted delivery, and reducing off-target effects. Additionally, targeting ligands on the nanoparticles' surface increases uptake and effectiveness. Although further investigation is needed to optimize the structure and composition of these nanoparticles and assess their long-term safety, these advancements pave the way for innovative gene-focused cancer therapies.
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Affiliation(s)
- Seyed Morteza Naghib
- Nanotechnology Department, School of Advanced Technologies, Iran University of Science and Technology (IUST), Tehran 1684613114, Iran.
| | - Bahar Ahmadi
- Biomaterials and Tissue Engineering Research Group, Interdisciplinary Technologies Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
| | - Babak Mikaeeli Kangarshahi
- State Key Laboratory of Structure Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian, China
| | - M R Mozafari
- Australasian Nanoscience and Nanotechnology Initiative (ANNI), Monash University LPO, Clayton, VIC 3168, Australia
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4
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Lou R, GuoshuangZheng, Chen X, Liu X, Yu W. Homogeneously complexed alginate-chitosan hydrogel microspheres for the viability enhancement of entrapped hepatocytes. Int J Biol Macromol 2024; 277:134407. [PMID: 39097062 DOI: 10.1016/j.ijbiomac.2024.134407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Revised: 07/04/2024] [Accepted: 07/31/2024] [Indexed: 08/05/2024]
Abstract
The future deployment of biomedicine fields will require a new generation of biodegradable, biocompatible, and non-toxic hydrogels. Alginate and chitosan, naturally occurring polymers, have gained significant interest for hydrogel applications. However, integrating chitosan within alginate-based hydrogels to form microspheres with homogeneous distribution and a tailored surface charge remains challenging. Herein, we report the design and fabrication of homogeneously complexed alginate-chitosan hydrogel microspheres, demonstrating their ability to enhance the viability and liver-specific functionalities of entrapped hepatocytes. By exploring and optimizing the pH and ratio of alginate and chitosan solutions, we achieved well-controlled physicochemical properties, including the degree of sphericity, hydrophilicity, charge property, and surface roughness. Unlike traditional alginate-based hydrogel microspheres, hepatocytes entrapped in homogeneous alginate-chitosan microspheres displayed enhanced viability and liver-specific functions, including albumin secretion, urea synthesis, and cytochrome P-450 enzymatic activity. This work illustrates a potential pathway for manufacturing functionalized microspheres with tunable mechanical properties and functionalities based on biocompatible alginate and chitosan for hepatocyte applications.
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Affiliation(s)
- Ruyun Lou
- Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, China
| | - GuoshuangZheng
- Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, China
| | - Xiaofang Chen
- Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, China
| | - Xiudong Liu
- College of Environment and Chemical Engineering, Dalian University, Dalian Economic Technological Development Zone, Dalian 116622, China.
| | - Weiting Yu
- Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, China; Dalian Key Laboratory of Marine Polysaccharide Biomaterial Transformation Medicine, Dalian 116001, China.
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5
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Svensson SE, Wijayarathna ERKB, Kalita NK, Hakkarainen M, Zamani A. Development of hydrogels from cell wall of Aspergillus oryzae containing chitin-glucan and wet spinning to monofilaments. Int J Biol Macromol 2024; 278:134285. [PMID: 39128384 DOI: 10.1016/j.ijbiomac.2024.134285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Revised: 07/08/2024] [Accepted: 07/28/2024] [Indexed: 08/13/2024]
Abstract
Fungal mycelium is emerging as a source for sustainable bio-based materials. Fungal biomass of Aspergillus oryzae was prepared by cultivation on bread waste hydrolysate to valorize this abundant food waste. Chitin-glucan-rich alkali-insoluble material (AIM) was isolated from fungal biomass, formed into hydrogels, and wet spun into monofilaments. AIM in the form of fungal microfibers containing 0.09 g polymer of glucosamine (GlcN)/g AIM was subjected to freeze-thaw and deacetylation treatments to increase the amount of GlcN. The GlcN fraction was 0.19 and 0.34 g polymer of GlcN/g AIM, for AIM subjected to deacetylation (AIM-DAC) and freeze-thaw cycles and deacetylation (AIM-FRTH-DAC), respectively. The increased GlcN fraction enabled the formation of hydrogels via the protonation of amino groups after the addition of lactic acid. Morphological differences in the hydrogels included aggregation of the fungal microfibers in the AIM-DAC hydrogel, whereas the microfibers in the AIM-FRTH-DAC hydrogel had a porous and interconnected network. Rheological assessment revealed shear thinning behavior and gel properties of the produced hydrogels. Wet spinning of the hydrogels resulted in monofilaments with tensile strengths of up to 70 MPa and 12 % elongation at break. This demonstrates promising avenues for biomaterial development from fungal cell walls containing chitin-glucan via food waste valorization.
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Affiliation(s)
- Sofie E Svensson
- Swedish Centre for Resource Recovery, University of Borås, 501 90 Borås, Sweden.
| | | | - Naba Kumar Kalita
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden
| | - Minna Hakkarainen
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden
| | - Akram Zamani
- Swedish Centre for Resource Recovery, University of Borås, 501 90 Borås, Sweden.
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6
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Conde A, Borges S, Baptista-Silva S, Veloso T, Pereira JL, Ventura SPM, Pintado MME. A crayfish chitosan-based bioactive film to treat vaginal infections: A sustainable approach. Int J Biol Macromol 2024; 277:134460. [PMID: 39102915 DOI: 10.1016/j.ijbiomac.2024.134460] [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: 11/28/2023] [Revised: 08/01/2024] [Accepted: 08/01/2024] [Indexed: 08/07/2024]
Abstract
Polymicrobial communities are seen to be a sign of health, but they can turn detrimental when an excess of pathogenic species leads to recurring vaginal infections. This microbiological imbalance may decrease women's fertility, increasing also the risk of infection by Human Papillomavirus (HPV) and/or other sexually transmitted infections (STIs). There is a worldwide need for smart/sustainable solutions to tackle these types of infections. Hereupon, we investigated, as a potential solution, the use of crayfish chitosan-based membrane as a mucoadhesive, antimicrobial, biocompatible and biodegradable material. Chitosan was chemically extracted with a process yield of ca. 63 % and a degree of deacetylation of ca. 65 %. Further chitosan was characterized by FTIR, DSC, XRD and zeta potential. Antimicrobial and antioxidant activities were tested by microbicide concentration and ABTS methods. The extracted chitosan was confirmed to be antioxidant and antimicrobial against Escherichia coli, Candida albicans, Staphylococcus aureus (methicillin resistant and susceptible strains). Vaginal films using chitosan extracted from crayfish shells were produced by solvent casting, and the biological profile was tested in simulated vaginal fluid as a proof of concept. The main data showed that the vaginal films prepared were active against several microorganisms responsible for vaginal infections, demonstrating their potential in the field.
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Affiliation(s)
- Alexandra Conde
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Sandra Borges
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal.
| | - Sara Baptista-Silva
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Telma Veloso
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Joana L Pereira
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Sónia P M Ventura
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Manuela M E Pintado
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
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7
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Luo B, Xiong Y, Cai J, Jiang R, Li Y, Xu C, Wang X. Chitin-Assisted Synthesis of CuS Composite Sponge for Bacterial Capture and Near-Infrared-Promoted Healing of Infected Diabetic Wounds. ACS APPLIED MATERIALS & INTERFACES 2024; 16:50160-50174. [PMID: 39265036 DOI: 10.1021/acsami.4c07586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/14/2024]
Abstract
Diabetic wounds are prone to recurrent infections, often leading to delayed healing. To address this challenge, we developed a chitin-copper sulfide (CuS@CH) composite sponge, which combines bacterial trapping with near-infrared (NIR) activated phototherapy for treating infected diabetic wounds. CuS nanoparticles were synthesized and incorporated in situ within the sponge using a chitin assisted biomineralization strategy. The positively charged chitin surface effectively adhered bacteria, while NIR irradiation of CuS generated reactive oxygen species (ROS) heat and Cu2+ to rapidly damage the trapped bacteria. This synergistic effect resulted in an exceptional antibacterial performance against E. coli (∼99.9%) and S. aureus (∼99.3%). The bactericidal mechanism involved NIR-induced glutathione oxidation, membrane lipid peroxidation, and increased membrane permeability. In diabetic mouse models, the CuS@CH sponge accelerated the wound healing of S. aureus infected wounds by facilitating collagen deposition and reducing inflammation. Furthermore, the sponge demonstrated good biocompatibility. This dual-functional platform integrating bacterial capture and NIR-triggered phototherapy shows promise as an antibacterial wound dressing to promote healing of infected diabetic wound.
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Affiliation(s)
- Bichong Luo
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510280, China
| | - Yutong Xiong
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China
| | - Jihai Cai
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China
| | - Ruiyang Jiang
- Jiangsu Collaborative Innovation Center of Traditional Chinese Medicine Prevention and Treatment of Tumor, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing 210023, China
| | - Yujin Li
- College of Food Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao 266003, China
- Shandong Luhai Lansheng Biotechnology Co. LTD,19 North Second Road, Kenli District, Dongying 257508, China
| | - Changliang Xu
- Jiangsu Collaborative Innovation Center of Traditional Chinese Medicine Prevention and Treatment of Tumor, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing 210023, China
| | - Xiaoying Wang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China
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8
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Camele I, Mohamed AA, Ibrahim AA, Elshafie HS. Biochemical Characterization and Disease Control Efficacy of Pleurotus eryngii-Derived Chitosan-An In Vivo Study against Monilinia laxa, the Causal Agent of Plum Brown Rot. PLANTS (BASEL, SWITZERLAND) 2024; 13:2598. [PMID: 39339573 PMCID: PMC11435330 DOI: 10.3390/plants13182598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2024] [Revised: 08/19/2024] [Accepted: 09/13/2024] [Indexed: 09/30/2024]
Abstract
Chitin (Ct) is a crucial biopolymer present in fungi, algae, arthropods, and is usually obtained from crustacean shells. Chitosan (Cs) is a derivative from Ct deacetylation, and possesses numerous uses in various agro-industrial fields. Research on fungal-derived Ct and Cs is mostly focused on pharmaceutical uses, however their uses for plant disease control remain less explored. The main objective of the current study is to evaluate the possibility of using chitosan obtained from mushroom Pleurotus eryngii (Cs-Pe) for controlling some phytopathogens compared to commercial chitosan (C.Cs). This study is focused on the following key areas: (i) extracting Ct from P. eryngii mycelium and converting it to Cs through deacetylation, using both bleaching and non-bleaching methods; (ii) conducting a physico-chemical characterization and in vitro evaluation of the antimicrobial activity of the obtained Cs; (iii) performing an in vivo assessment of the phytotoxic and cytotoxic effects of Cs; and (iv) investigating in vivo the impact of the studied chitosan on fruit quality and its biocontrol efficacy against Monilinia laxa infections in plum fruits. Results showed that Cs-Pe, especially the unbleached one, displayed promising in vitro antimicrobial activity against the majority of tested pathogens. Regarding the cytotoxicity, the highest significant increase in cell abnormality percentage was observed in the case of C.Cs compared to Cs-Pe. In the in vivo study, Cs-Pe acted as a protective barrier, lowering and/or preventing moisture loss and firmness of treated plums. The studied Cs-Pe demonstrated notable efficacy against M. laxa which decreased the fruits' percentage decline. These results strongly suggest that Cs derived from P. eryngii is a potential candidate for increasing plums' shelf-life. This research shed light on the promising applications of P. eryngii-derived Cs in the agri-food field.
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Affiliation(s)
- Ippolito Camele
- Department of Agricultural, Forestry, Food and Environmental Sciences (DAFE), University of Basilicata, 85100 Potenza, Italy
| | - Amira A Mohamed
- Department of Basic Science, Zagazig Higher Institute of Engineering and Technology, Zagazig 44519, Egypt
| | - Amira A Ibrahim
- Botany and Microbiology Department, Faculty of Science, Arish University, Al-Arish 45511, Egypt
| | - Hazem S Elshafie
- Department of Agricultural, Forestry, Food and Environmental Sciences (DAFE), University of Basilicata, 85100 Potenza, Italy
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9
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Shirk BD, Heichel DL, Eccles LE, Rodgers LI, Lateef AH, Burke KA, Stoppel WL. Modifying Naturally Occurring, Nonmammalian-Sourced Biopolymers for Biomedical Applications. ACS Biomater Sci Eng 2024. [PMID: 39259773 DOI: 10.1021/acsbiomaterials.4c00689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2024]
Abstract
Natural biopolymers have a rich history, with many uses across the fields of healthcare and medicine, including formulations for wound dressings, surgical implants, tissue culture substrates, and drug delivery vehicles. Yet, synthetic-based materials have been more successful in translation due to precise control and regulation achievable during manufacturing. However, there is a renewed interest in natural biopolymers, which offer a diverse landscape of architecture, sustainable sourcing, functional groups, and properties that synthetic counterparts cannot fully replicate as processing and sourcing of these materials has improved. Proteins and polysaccharides derived from various sources (crustaceans, plants, insects, etc.) are highlighted in this review. We discuss the common types of polysaccharide and protein biopolymers used in healthcare and medicine, highlighting methods and strategies to alter structures and intra- and interchain interactions to engineer specific functions, products, or materials. We focus on biopolymers obtained from natural, nonmammalian sources, including silk fibroins, alginates, chitosans, chitins, mucins, keratins, and resilins, while discussing strategies to improve upon their innate properties and sourcing standardization to expand their clinical uses and relevance. Emphasis will be placed on methods that preserve the structural integrity and native biological functions of the biopolymers and their makers. We will conclude by discussing the untapped potential of new technologies to manipulate native biopolymers while controlling their secondary and tertiary structures, offering a perspective on advancing biopolymer utility in novel applications within biomedical engineering, advanced manufacturing, and tissue engineering.
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Affiliation(s)
- Bryce D Shirk
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Danielle L Heichel
- Department of Chemical Engineering, University of Connecticut, Storrs, Connecticut 06269-3222, United States
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269-3136, United States
| | - Lauren E Eccles
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Liam I Rodgers
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Ali H Lateef
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Kelly A Burke
- Department of Chemical Engineering, University of Connecticut, Storrs, Connecticut 06269-3222, United States
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269-3136, United States
| | - Whitney L Stoppel
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
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10
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Carvalho DN, Gonçalves C, Sousa RO, Reis RL, Oliveira JM, Silva TH. Extraction and Purification of Biopolymers from Marine Origin Sources Envisaging Their Use for Biotechnological Applications. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2024:10.1007/s10126-024-10361-5. [PMID: 39254780 DOI: 10.1007/s10126-024-10361-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 08/19/2024] [Indexed: 09/11/2024]
Abstract
Biopolymers are a versatile and diverse class of materials that has won high interest due to their potential application in several sectors of the economy, such as cosmetics, medical materials/devices, and food additives. In the last years, the search for these compounds has explored a wider range of marine organisms that have proven to be a great alternative to mammal sources for these applications and benefit from their biological properties, such as low antigenicity, biocompatibility, and biodegradability, among others. Furthermore, to ensure the sustainable exploitation of natural marine resources and address the challenges of 3R's policies, there is a current necessity to valorize the residues and by-products obtained from food processing to benefit both economic and environmental interests. Many extraction methodologies have received significant attention for the obtention of diverse polysaccharides, proteins, and glycosaminoglycans to accomplish the increasing demands for these products. The present review gives emphasis to the ones that can be obtained from marine biological resources, as agar/agarose, alginate and sulfated polysaccharides from seaweeds, chitin/chitosan from crustaceans from crustaceans, collagen, and some glycosaminoglycans such as chondroitin sulfate and hyaluronic acids from fish. It is offered, in a summarized and easy-to-interpret arrangement, the most well-established extraction and purification methodologies used for obtaining the referred marine biopolymers, their chemical structure, as well as the characterization tools that are required to validate the extracted material and respective features. As supplementary material, a practical guide with the step-by-step isolation protocol, together with the various materials, reagents, and equipment, needed for each extraction is also delivered is also delivered. Finally, some remarks are made on the needs still observed, despite all the past efforts, to improve the current extraction and purification procedures to achieve more efficient and green methodologies with higher yields, less time-consuming, and decreased batch-to-batch variability.
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Affiliation(s)
- Duarte Nuno Carvalho
- 3B´S Research Group, I3B´s - Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence On Tissue Engineering and Regenerative Medicine, AvePark 4805-017, Barco, Guimarães, Portugal
- ICVS/3B´s - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Cristiana Gonçalves
- 3B´S Research Group, I3B´s - Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence On Tissue Engineering and Regenerative Medicine, AvePark 4805-017, Barco, Guimarães, Portugal
- ICVS/3B´s - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rita O Sousa
- 3B´S Research Group, I3B´s - Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence On Tissue Engineering and Regenerative Medicine, AvePark 4805-017, Barco, Guimarães, Portugal
- ICVS/3B´s - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rui L Reis
- 3B´S Research Group, I3B´s - Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence On Tissue Engineering and Regenerative Medicine, AvePark 4805-017, Barco, Guimarães, Portugal
- ICVS/3B´s - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - J Miguel Oliveira
- 3B´S Research Group, I3B´s - Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence On Tissue Engineering and Regenerative Medicine, AvePark 4805-017, Barco, Guimarães, Portugal
- ICVS/3B´s - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Tiago H Silva
- 3B´S Research Group, I3B´s - Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence On Tissue Engineering and Regenerative Medicine, AvePark 4805-017, Barco, Guimarães, Portugal.
- ICVS/3B´s - PT Government Associate Laboratory, Braga/Guimarães, Portugal.
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11
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Bhaduri A, Ha TJ. Biowaste-Derived Triboelectric Nanogenerators for Emerging Bioelectronics. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2405666. [PMID: 39248387 DOI: 10.1002/advs.202405666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 08/20/2024] [Indexed: 09/10/2024]
Abstract
Triboelectric nanogenerators (TENGs) combine contact electrification and electrostatic induction effects to convert waste mechanical energy into electrical energy. As conventional devices contribute to electronic waste, TENGs based on ecofriendly and biocompatible materials have been developed for various energy applications. Owing to the abundance, accessibility, low cost, and biodegradability of biowaste (BW), recycling these materials has gained considerable attention as a green approach for fabricating TENGs. This review provides a detailed overview of BW materials, processing techniques for BW-based TENGs (BW-TENGs), and potential applications of BW-TENGs in emerging bioelectronics. In particular, recent progress in material design, fabrication methods, and biomechanical and environmental energy-harvesting performance is discussed. This review is aimed at promoting the continued development of BW-TENGs and their adoption for sustainable energy-harvesting applications in the field of bioelectronics.
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Affiliation(s)
- Abhisikta Bhaduri
- Dept. of Electronic Materials Engineering, Kwangwoon University, Seoul, 01897, Republic of Korea
| | - Tae-Jun Ha
- Dept. of Electronic Materials Engineering, Kwangwoon University, Seoul, 01897, Republic of Korea
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12
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Ait Hamdan Y, El-Mansoury B, Elouali S, Rachmoune K, Belbachir A, Oudadesse H, Rhazi M. A review of chitosan polysaccharides: Neuropharmacological implications and tissue regeneration. Int J Biol Macromol 2024; 279:135356. [PMID: 39244136 DOI: 10.1016/j.ijbiomac.2024.135356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 08/20/2024] [Accepted: 09/03/2024] [Indexed: 09/09/2024]
Abstract
One of the current challenges in targeting neurological disorders is that many therapeutic molecules cannot cross the blood-brain barrier (BBB), which limits the use of natural molecules in nervous tissue regeneration. Thus, the development of new drugs to effectively treat neurological disorders would be a challenge. Natural resources are well known as a source of several therapeutic agents for the treatment of neurologic disorders. Recently, chitosan (CTS) and its derivatives from arthropod exoskeletons, have attracted much attention as a drug delivery system to transport therapeutic substances across the BBB and thanks to other neuroprotective effects including the participation to the CNS regenerations scaffolds to replicate the extracellular matrix and microenvironment of the body. This review will discuss the place of natural resource therapy in targeting neurological disorders. In particular, it will highlight recent understanding and progress in the applications of CTS as drug delivery systems and their therapeutic effects on these disorders through tissue regeneration, as well as the molecular mechanisms by which they exert these effects.
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Affiliation(s)
- Youssef Ait Hamdan
- Interdisciplinary Laboratory of Research in Bio-Resources, Environment and Materials, Higher Normal School, Cadi Ayyad University, 40000 Marrakech, Morocco; Univ Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France.
| | - Bilal El-Mansoury
- Laboratory of Anthropogenic, Biotechnology and Health, Team physiopathology Nutritional, Neurosciences and Toxicology, Faculty of Sciences, Chouaib Doukkali University, Av. Des facultés, 24000 El Jadida, Morocco
| | - Samia Elouali
- Interdisciplinary Laboratory of Research in Bio-Resources, Environment and Materials, Higher Normal School, Cadi Ayyad University, 40000 Marrakech, Morocco; University of Mons (UMONS) - Laboratory of Polymeric and Composite Materials (LPCM), Center of Innovation and Research in Materials and Polymers (CIRMAP), Place du Parc 20, 7000 Mons, Belgium
| | - Khawla Rachmoune
- Interdisciplinary Laboratory of Research in Bio-Resources, Environment and Materials, Higher Normal School, Cadi Ayyad University, 40000 Marrakech, Morocco; Biotechnology and Biomolecule Engineering Unit, CNESTEN, Rabat, Morocco
| | - Anass Belbachir
- Center for Regenerative Medicine, CHU MOHAMMED VI, Marrakech, Morocco; Faculty of Medicine and Pharmacy, Cadi Ayyad University, Marrakech, Morocco
| | | | - Mohammed Rhazi
- Interdisciplinary Laboratory of Research in Bio-Resources, Environment and Materials, Higher Normal School, Cadi Ayyad University, 40000 Marrakech, Morocco
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13
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Jabbour CR, Schnabl KB, Yan H, O'Beirn NN, Dorresteijn JM, Meirer F, Mandemaker LDB, Weckhuysen BM. Chitosan as Support Material for Metal-Organic Framework based Catalysts. Chemphyschem 2024; 25:e202400154. [PMID: 38798029 DOI: 10.1002/cphc.202400154] [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: 02/10/2024] [Revised: 05/20/2024] [Accepted: 05/23/2024] [Indexed: 05/29/2024]
Abstract
Turning waste into valuable products is one of the main challenges of the chemical industry. In this work, chitosan (CS), an abundant, low-cost, and non-toxic biopolymer derived from chitin, was reshaped into beads of ~3 mm. Their suitability as a support material for active phase catalyst materials was tested for a zirconium-based Metal-Organic Framework (MOF) with incorporated Pt, namely UiO-67-Pt. Its incorporation was investigated via two procedures: a one-pot synthesis (OPS) and a post-synthetic functionalization (PSF) synthesis method. Scanning electron microscopy (SEM) images show good UiO-67-Pt dispersion throughout the CS beads for the one-pot synthesized material (UiO-67-Pt-OPS@CS). However, this uniform dispersion was not observed for the post-synthetically functionalized material (UiO-67-Pt-PSF@CS). The success of the implementation of UiO-67-Pt was evaluated with ultraviolet-visible and infrared spectroscopy for both composite materials. Thermogravimetric analysis (TGA) reveals higher thermal stabilities for UiO-67-Pt-OPS@CS composite beads in comparison to pure CS beads, but not for UiO-67-Pt-PSF@CS. The study provides valuable insights into the potential of chitosan as a green, bead-shaped support material for MOFs, offering flexibility in their incorporation through different synthesis routes. It further contributes to the broader goal of the sustainable and eco-friendly design of a new generation of catalysts made from waste materials, which will be the topic of future studies.
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Affiliation(s)
- Christia R Jabbour
- Inorganic Chemistry and Catalysis group, Debye Institute for Nanomaterials Science and Institute for Sustainable and Circular Chemistry, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Kordula B Schnabl
- Inorganic Chemistry and Catalysis group, Debye Institute for Nanomaterials Science and Institute for Sustainable and Circular Chemistry, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Haoxiang Yan
- Inorganic Chemistry and Catalysis group, Debye Institute for Nanomaterials Science and Institute for Sustainable and Circular Chemistry, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Naoise N O'Beirn
- Inorganic Chemistry and Catalysis group, Debye Institute for Nanomaterials Science and Institute for Sustainable and Circular Chemistry, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Joren M Dorresteijn
- Inorganic Chemistry and Catalysis group, Debye Institute for Nanomaterials Science and Institute for Sustainable and Circular Chemistry, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Florian Meirer
- Inorganic Chemistry and Catalysis group, Debye Institute for Nanomaterials Science and Institute for Sustainable and Circular Chemistry, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Laurens D B Mandemaker
- Inorganic Chemistry and Catalysis group, Debye Institute for Nanomaterials Science and Institute for Sustainable and Circular Chemistry, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Bert M Weckhuysen
- Inorganic Chemistry and Catalysis group, Debye Institute for Nanomaterials Science and Institute for Sustainable and Circular Chemistry, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
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14
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Kresse-Walczak K, Meissner H, Mauer R, Trips E, Boening K. Evaluation of a protocol to assess a novel artificial biofilm equivalent for dentures-A prospective clinical pilot study. Gerodontology 2024; 41:368-375. [PMID: 37665947 DOI: 10.1111/ger.12715] [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] [Accepted: 08/24/2023] [Indexed: 09/06/2023]
Abstract
OBJECTIVES This pilot study aimed to carry out preliminary tests of the removability of an artificial biofilm equivalent (ABE) and to verify the reproducibility of the ABE testing protocol for a planned main study. BACKGROUND There is a lack of data to develop suitable artificial biofilm substitutes, which may be helpful to perform denture hygiene education and to carry out in vitro examinations of oral hygiene products. MATERIALS AND METHODS This single-group, prospective, longitudinal, interventional pilot study was conducted in Dresden (Germany) from February until December 2020. Participants were recruited who wore fully functional upper complete dentures. Denture biofilm was grown on acrylic specimens by wearing dentures for 12 h and 36 h using intraoral appliances. Acrylic specimens were coated with ABEs of three compositions: chitosan (ChS) 0.3 g, methylcellulose (MC) 1.7 g; ChS 0.2 g, MC 1.8 g; ChS 0.1 g, MC 1.9 g (labelled 1.7MC, 1.8MC and 1.9MC, respectively). All specimens underwent standardised mechanical brushing. The percentages of remaining biofilm (POB) were measured. RESULTS Thirty-one participants were prescreened, and eight (26%) were included. The appliances were well tolerated, and biofilm was collected. ABE was prepared and brushed as planned. Three and six brushing strokes were needed to remove 12-h and 36-h natural denture biofilm, respectively. Correspondingly, three brushing strokes were needed to remove 1.9MC ABE and six brushing strokes to remove 1.8MC and 1.7MC ABE. A reproducibility of ABE removal was indicated. CONCLUSION The removability of ABE and the ABE testing protocol were feasible and reproducible for conducting the future main study.
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Affiliation(s)
- Katarzyna Kresse-Walczak
- Department of Prosthodontics, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Heike Meissner
- Department of Prosthodontics, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - René Mauer
- Institute for Medical Informatics and Biometry (IMB), Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Evelyn Trips
- Coordination Centre for Clinical Trials, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Klaus Boening
- Department of Prosthodontics, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
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15
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Gómez-Gaviria M, Mora-Montes HM. Exploring the potential of chitin and chitosan in nanobiocomposites for fungal immunological detection and antifungal action. Carbohydr Res 2024; 543:109220. [PMID: 39038396 DOI: 10.1016/j.carres.2024.109220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/11/2024] [Accepted: 07/18/2024] [Indexed: 07/24/2024]
Abstract
Chitin is a polymer of N-acetylglucosamine and an essential component of the fungal cell wall. Chitosan is the deacetylated form of chitin and is also important for maintaining the integrity of this structure. Both polysaccharides are widely distributed in nature and have been shown to have a variety of applications in biomedicine, including their potential in immune sensing and as potential antifungal agents. In addition, chitin has been reported to play an important role in the pathogen-host interaction, involving innate and adaptive immune responses. This paper will explore the role of chitin and chitosan when incorporated into nanobiocomposites to improve their efficacy in detecting fungi of medical interest and inhibiting their growth. Potential applications in diagnostic and therapeutic medicine will be discussed, highlighting their promise in the development of more sensitive and effective tools for the early diagnosis of fungal infections. This review aims to highlight the importance of the convergence of nanotechnology and biology in addressing public health challenges.
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Affiliation(s)
- Manuela Gómez-Gaviria
- Departamento de Biología, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Guanajuato, Gto, Mexico
| | - Héctor M Mora-Montes
- Departamento de Biología, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Guanajuato, Gto, Mexico.
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16
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Sousa LR, Moreira NS, Guinati BGS, Coltro WKT, Cortón E, Figueredo F. Improved sensitivity in paper-based microfluidic analytical devices using a pH-responsive valve for nitrate analysis. Talanta 2024; 277:126361. [PMID: 38878509 DOI: 10.1016/j.talanta.2024.126361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 05/31/2024] [Accepted: 06/03/2024] [Indexed: 07/19/2024]
Abstract
This paper presents an innovative application of chitosan material to be used as pH-responsive valves for the precise control of lateral flow in microfluidic paper-based analytical devices (μPADs). The fabrication of μPADs involved wax printing, while pH-responsive valves were created using a solution of chitosan in acetic acid. The valve-forming solution was applied, and ready when dry; by exposure to acidic solutions, the valve opens. Remarkably, the valves exhibited excellent compatibility with alkaline, neutral, and acidic solutions with a pH higher than 4. The valve opening process had no impact on the flow rate and colorimetric analysis. The potential of chitosan valves used for flow control was demonstrated for μPADs employed for nitrate determination. Valves were used to increase the conversion time of nitrate to nitrite, which was further analyzed using the Griess reaction. The μPAD showed a linear response in the concentration range of 10-100 μmol L-1, with a detection limit of 5.4 μmol L-1. As a proof of concept, the assay was successfully applied to detect nitrate levels in water samples from artificial lakes of recreational parks. For analyses that require controlled kinetics and involve multiple sequential steps, the use of chitosan pH-responsive valves in μPADs is extremely valuable. This breakthrough holds great potential for the development of simple and high-impact microfluidic platforms that can cater to a wide range of analytical chemistry applications.
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Affiliation(s)
- Lucas R Sousa
- Departamento de Química Biológica e IQUIBICEN -CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (UBA), CABA, Argentina; Instituto de Química, Universidade Federal de Goiás, 74690-900, Goiânia, GO, Brazil
| | - Nikaele S Moreira
- Instituto de Química, Universidade Federal de Goiás, 74690-900, Goiânia, GO, Brazil
| | - Bárbara G S Guinati
- Instituto de Química, Universidade Federal de Goiás, 74690-900, Goiânia, GO, Brazil
| | - Wendell K T Coltro
- Instituto de Química, Universidade Federal de Goiás, 74690-900, Goiânia, GO, Brazil; Instituto Nacional de Ciência e Tecnologia de Bioanalítica, 13084-971, Campinas, SP, Brazil
| | - Eduardo Cortón
- Departamento de Química Biológica e IQUIBICEN -CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (UBA), CABA, Argentina
| | - Federico Figueredo
- Departamento de Química Biológica e IQUIBICEN -CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (UBA), CABA, Argentina.
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17
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Zhou S, He J, Liu Q, Chen T, Guan X, Gao H, Jiang J, Wang J, Peng X, Wu J. Injectable Hydrogel of Chitosan-Octyl Itaconate Conjugate Modulates Inflammatory Response. ACS Biomater Sci Eng 2024; 10:4823-4838. [PMID: 39056337 DOI: 10.1021/acsbiomaterials.4c00882] [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] [Indexed: 07/28/2024]
Abstract
Itaconic acid and its derivative 4-octyl itaconate (OI) represent a novel anti-inflammatory medication that has demonstrated efficacy in multiple inflammation models because of its minimal side effects. Recently, natural polymers conjugated with small molecule drugs, known as polymer-drug conjugates (PDCs), have emerged as a promising approach to sustained drug release. In this work, we reported an approach to prepare a PDC containing an OI and make it into an injectable hydrogel. Chitosan (CS) was selected for PDC synthesis because of its abundant free amino groups that can be conjugated with molecules containing carboxyl groups by carbodiimide chemistry. We used an ethanol/water cosolvent system to synthesize a CS-OI conjugate via EDC/NHS catalysis. The CS-OI conjugate had improved water solubility and unique anti-inflammatory activity and did not show compromised antibacterial activity compared with unmodified CS. Beta-glycerophosphate (β-GP) cross-linked CS-OI hydrogel exhibited good injectability with sustainable OI release and effectively modulated inflammatory response in a rat model. Therefore, this study provides valuable insights into the design of PDC hydrogels with inflammatory modulatory properties.
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Affiliation(s)
- Shasha Zhou
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Jibing He
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P. R. China
| | - Quan Liu
- Department of Orthopedics, Centre for Leading Medicine and Advanced Technologies of IHM, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui, P. R. China
| | - Ting Chen
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Xiangheng Guan
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Haihan Gao
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P. R. China
| | - Jia Jiang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P. R. China
| | - Jiaxing Wang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P. R. China
| | - Xiaochun Peng
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, P. R. China
| | - Jinglei Wu
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, P. R. China
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Charoenpol A, Crespy D, Schulte A, Suginta W. Immobilized chitinase as effective biocatalytic platform for producing bioactive di-N-acetyl chitobiose from recycled chitin food waste. BIORESOURCE TECHNOLOGY 2024; 406:130945. [PMID: 38901749 DOI: 10.1016/j.biortech.2024.130945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Accepted: 06/07/2024] [Indexed: 06/22/2024]
Abstract
Described is chitinase immobilization on magnetic nanoparticles (MNPs) as biocompatible support for enzymatic production of di-N-acetyl chitobiose from chitin waste. Chitinase immobilization was feasible with an immobilization yield of 88.9 ± 1.6 % with 97.8 ± 1.0 % retention of activity and compared to free enzyme work, immobilization conferred better thermal and storage stability. As practical benefit the attachment to magnetic nanocarriers enabled easy enzyme recovery after repeated application runs and thus sustainable reuse. In fixed state chitinase retained a remarkable 39.7 ± 2.6 % of the starting activity after 16 reaction cycles. Furthermore, immobilized chitinase showed higher catalytic activity than free chitinase in converting shrimp shells and squid-pens chitins into di-N-acetyl chitobiose in a single-step reaction. The final yield of purified compound was 37.0 ± 1.2 % from shrimp shells and 61.1 ± 0.5 % from squid-pens chitin. In conclusion, an efficient MNP-based chitinase immobilization system with the potential for large-scale production was developed.
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Affiliation(s)
- Ailada Charoenpol
- School of Biomolecular Science and Engineering (BSE), Vidyasirimedhi Institute of Science and Technology (VISTEC), 555 Moo 1, Payupnai, Wangchan, Rayong 21210, Thailand
| | - Daniel Crespy
- Department of Materials Science and Engineering, School of Molecular Science and Engineering (MSE), Vidyasirimedhi Institute of Science and Technology (VISTEC), 555 Moo 1, Payupnai, Wangchan, Rayong 21210, Thailand
| | - Albert Schulte
- School of Biomolecular Science and Engineering (BSE), Vidyasirimedhi Institute of Science and Technology (VISTEC), 555 Moo 1, Payupnai, Wangchan, Rayong 21210, Thailand
| | - Wipa Suginta
- School of Biomolecular Science and Engineering (BSE), Vidyasirimedhi Institute of Science and Technology (VISTEC), 555 Moo 1, Payupnai, Wangchan, Rayong 21210, Thailand.
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Gopalaiah SB, Jayaseelan K. Analytical quality by design approach to develop an eco-friendly RP-HPLC method for estimation of irbesartan in chitosan polymeric nanoparticles: forced degradation studies and assessment of in vitro release mathematical modelling. RSC Adv 2024; 14:22169-22184. [PMID: 39005249 PMCID: PMC11243759 DOI: 10.1039/d4ra03952a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Accepted: 07/04/2024] [Indexed: 07/16/2024] Open
Abstract
Irbesartan is an angiotensin converting enzyme blocker, primarily utilized for the management of hypertension and the mitigation of diabetic nephropathy progression. The present study introduces rapid, robust and environmentally sustainable reverse phase high performance liquid chromatography (RP-HPLC) validated under the analytical quality by design (AQbD) framework according to ICH guidelines. Utilizing a central composite design, the method's systemic optimization was achieved, ensuring reproducibility and accuracy. Chromatographic separation was accomplished utilizing an ethanol and sodium acetate buffer (60 : 40 v/v) isocratic mobile phase system on a zorbax sb C18 column, with a flow rate of at 0.6 mL min-1. Studies on forced degradation outlined stability of irbesartan and its degradation processes, enhancing our understanding of its chemical robustness under varied conditions. Complementing the green chemistry paradigm, the method's environmental impact was critically assessed, affirming its alignment with sustainability objectives. The validated method proved pivotal in determining the percent entrapment and loading efficiency of the formulated nanoparticles and holds potential for application in biological matrices. Furthermore, the encapsulation of IRB within chitosan nanoparticles was explored to assess release kinetics and enhance bioavailability. This study not only advances the analytical sciences by merging eco-friendly practices with method development but also broadens the applicative landscape of HPLC methodologies in drug delivery research.
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Affiliation(s)
- Sinchana B Gopalaiah
- Department of Pharmaceutical Analysis, SRM College of Pharmacy, SRM Institute of Science and Technology Kattankulathur, Chengalpattu District - 603203 Tamil Nadu India (+91) 9094903309
| | - Kavitha Jayaseelan
- Department of Pharmaceutical Analysis, SRM College of Pharmacy, SRM Institute of Science and Technology Kattankulathur, Chengalpattu District - 603203 Tamil Nadu India (+91) 9094903309
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20
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Ali SH, Mahammed MA, Yasin SA. Characterization of Electrospinning Chitosan Nanofibers Used for Wound Dressing. Polymers (Basel) 2024; 16:1984. [PMID: 39065300 PMCID: PMC11281056 DOI: 10.3390/polym16141984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 06/21/2024] [Accepted: 06/27/2024] [Indexed: 07/28/2024] Open
Abstract
Wound dressings play a crucial role in promoting wound healing by providing a protective barrier against infections and facilitating tissue regeneration. Electrospun nanofibers have emerged as promising materials for wound dressing applications due to their high surface area, porosity, and resemblance to the extracellular matrix. In this study, chitosan, a biocompatible and biodegradable polymer, was electrospun into nanofibers for potential use in wound dressing. The chitosan nanofibers were characterized by using various analytical techniques to assess their morphology and biocompatibility. Scanning electron microscopy (SEM) revealed the formation of uniform and bead-free nanofibers with diameters ranging from tens to hundreds of nanometers. Structural analysis, including Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD), elucidated the chemical composition and crystalline structure of the nanofibers. Furthermore, in vitro studies evaluated the cytocompatibility of the chitosan nanofibers with human dermal fibroblasts, demonstrating cell viability and proliferation on the nanofibers. Additionally, antibacterial properties were assessed to evaluate the potential of chitosan nanofibers in preventing wound infections. Overall, the characterization results highlight the promising attributes of electrospun chitosan nanofibers as wound dressings, paving the way for further investigation and development in the field of advanced wound care. This study has been carried out for the first time in our region and has assessed the antibacterial properties of electrospun chitosan nanofiber material. The created mat has shown efficaciousness against bacteria that are both gram-positive and gram-negative.
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Affiliation(s)
- Shahla H. Ali
- College of Medicine, University of Duhok, Duhok 42001, Iraq;
| | | | - Suhad A. Yasin
- College of Science, University of Duhok, Duhok 42001, Iraq;
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21
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Shao X, Fang H, Li T, Yang L, Yang D, Pan L. Heterologous Expression and Biochemical Characterization of a Novel Lytic Polysaccharide Monooxygenase from Chitinilyticum aquatile CSC-1. Microorganisms 2024; 12:1381. [PMID: 39065150 PMCID: PMC11278713 DOI: 10.3390/microorganisms12071381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 07/03/2024] [Accepted: 07/04/2024] [Indexed: 07/28/2024] Open
Abstract
Lytic polysaccharide monooxygenases (LPMOs) are copper-dependent enzymes that catalyze the oxidative cleavage of recalcitrant polysaccharides. There are limited reports on LPMOs capable of concurrently catalyzing the oxidative cleavage of both cellulose and chitin. In this study, we identified and cloned a novel LPMO from the newly isolated bacterium Chitinilyticum aquatile CSC-1, designated as CaLPMO10. When using 2, 6-dimethylphenol (2, 6-DMP) as the substrate, CaLPMO10 exhibited optimal activity at 50 °C and pH 8, demonstrating good temperature stability at 30 °C. Even after a 6 h incubation at pH 8 and 30 °C, CaLPMO10 retained approximately 83.03 ± 1.25% residual enzyme activity. Most metal ions were found to enhance the enzyme activity of CaLPMO10, with ascorbic acid identified as the optimal reducing agent. Mass spectrometry analysis indicated that CaLPMO10 displayed oxidative activity towards both chitin and cellulose, identifying it as a C1/C4-oxidized LPMO. CaLPMO10 shows promise as a key enzyme for the efficient utilization of biomass resources in future applications.
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Affiliation(s)
- Xuezhi Shao
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China; (X.S.); (H.F.)
| | - Hongliang Fang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China; (X.S.); (H.F.)
| | - Tao Li
- National Key Laboratory of Non-Food Biomass Energy Technology, Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Academy of Sciences, Nanning 530007, China; (T.L.); (L.Y.)
| | - Liyan Yang
- National Key Laboratory of Non-Food Biomass Energy Technology, Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Academy of Sciences, Nanning 530007, China; (T.L.); (L.Y.)
| | - Dengfeng Yang
- National Key Laboratory of Non-Food Biomass Energy Technology, Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Academy of Sciences, Nanning 530007, China; (T.L.); (L.Y.)
| | - Lixia Pan
- National Key Laboratory of Non-Food Biomass Energy Technology, Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Academy of Sciences, Nanning 530007, China; (T.L.); (L.Y.)
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22
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Nagaraja B, Janga JK, Hossain S, Verma G, Palomino AM, Reddy KR. Novel chitosan-based barrier materials for environmental containment: Synthesis, characterization, and contaminant removal capacities and mechanisms. CHEMOSPHERE 2024; 359:142285. [PMID: 38723684 DOI: 10.1016/j.chemosphere.2024.142285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 05/05/2024] [Accepted: 05/06/2024] [Indexed: 06/05/2024]
Abstract
This study critically appraises employing chitosan as a composite with bentonite, biochar, or both materials as an alternative to conventional barrier materials. A comprehensive literature review was conducted to identify the studies reporting chitosan-bentonite composite (CBC), chitosan amended biochar (CAB), and chitosan-bentonite-biochar composite (CBBC) for effective removal of various contaminants. The study aims to review the synthesis of these composites, identify fundamental properties affecting their adsorption capacities, and examine how these properties affect or enhance the removal abilities of other materials within the composite. Notably, CBC composites have the advantage of adsorbing both cationic and anionic species, such as heavy metals and dyes, due to the cationic nature of chitosan and the anionic nature of montmorillonite, along with the increased accessible surface area due to the clay. CAB composites have the unique advantage of being low-cost sorbents with high specific surface area, affinity for a wide range of contaminants owing to the high surface area and microporosity of biochar, and abundant available functional groups from the chitosan. Limited studies have reported the utilization of CBBC composites to remove various contaminants. These composites can be prepared by combining the steps employed in preparing CBC and CAB composites. They can benefit from the favorable adsorption properties of all three materials while also satisfying the mechanical requirements of a barrier material. This study serves as a knowledge base for future research to develop novel composite barrier materials by incorporating chitosan and biochar as amendments to bentonite.
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Affiliation(s)
- Banuchandra Nagaraja
- Department of Civil, Materials, and Environmental Engineering, University of Illinois Chicago, 842 West Taylor Street, Chicago, IL, 60607, USA.
| | - Jagadeesh Kumar Janga
- Department of Civil, Materials, and Environmental Engineering, University of Illinois Chicago, 842 West Taylor Street, Chicago, IL, 60607, USA.
| | - Sadam Hossain
- Department of Civil and Environmental Engineering, University of Tennessee Knoxville, 423 John D. Tickle Building, Knoxville, TN, 37996, USA.
| | - Gaurav Verma
- Department of Civil, Materials, and Environmental Engineering, University of Illinois Chicago, 842 West Taylor Street, Chicago, IL, 60607, USA.
| | - Angelica M Palomino
- Department of Civil and Environmental Engineering, University of Tennessee Knoxville, 423 John D. Tickle Building, Knoxville, TN, 37996, USA.
| | - Krishna R Reddy
- Department of Civil, Materials, and Environmental Engineering, University of Illinois Chicago, 842 West Taylor Street, Chicago, IL, 60607, USA.
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23
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Wang Z, Pang S, Liu X, Dong Z, Tian Y, Ashrafizadeh M, Rabiee N, Ertas YN, Mao Y. Chitosan- and hyaluronic acid-based nanoarchitectures in phototherapy: Combination cancer chemotherapy, immunotherapy and gene therapy. Int J Biol Macromol 2024; 273:132579. [PMID: 38795895 DOI: 10.1016/j.ijbiomac.2024.132579] [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: 02/01/2024] [Revised: 05/18/2024] [Accepted: 05/20/2024] [Indexed: 05/28/2024]
Abstract
Cancer phototherapy has been introduced as a new potential modality for tumor suppression. However, the efficacy of phototherapy has been limited due to a lack of targeted delivery of photosensitizers. Therefore, the application of biocompatible and multifunctional nanoparticles in phototherapy is appreciated. Chitosan (CS) as a cationic polymer and hyaluronic acid (HA) as a CD44-targeting agent are two widely utilized polymers in nanoparticle synthesis and functionalization. The current review focuses on the application of HA and CS nanostructures in cancer phototherapy. These nanocarriers can be used in phototherapy to induce hyperthermia and singlet oxygen generation for tumor ablation. CS and HA can be used for the synthesis of nanostructures, or they can functionalize other kinds of nanostructures used for phototherapy, such as gold nanorods. The HA and CS nanostructures can combine chemotherapy or immunotherapy with phototherapy to augment tumor suppression. Moreover, the CS nanostructures can be functionalized with HA for specific cancer phototherapy. The CS and HA nanostructures promote the cellular uptake of genes and photosensitizers to facilitate gene therapy and phototherapy. Such nanostructures specifically stimulate phototherapy at the tumor site, with particle toxic impacts on normal cells. Moreover, CS and HA nanostructures demonstrate high biocompatibility for further clinical applications.
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Affiliation(s)
- Zheng Wang
- Department of Neurosurgery, Liaocheng Traditional Chinese Medicine Hospital, Liaocheng 252000, Shandong, PR China
| | - Shuo Pang
- Department of Urinary Surgery, Jinan Third People's Hospital, Jinan, Shandong 250101, PR China
| | - Xiaoli Liu
- Department of Dermatology, First Medical Center of Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Zi Dong
- Department of Gastroenterology, Lincang People's Hospital, Lincang, China
| | - Yu Tian
- School of Public Health, Benedictine University, Lisle, United States
| | - Milad Ashrafizadeh
- Department of General Surgery, Institute of Precision Diagnosis and Treatment of Digestive System Tumors, Carson International Cancer Center, Shenzhen University General Hospital, Shenzhen University, Shenzhen, Guangdong 518055, China; International Association for Diagnosis and Treatment of Cancer, Shenzhen, Guangdong 518055, China; Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong 250000, China.
| | - Navid Rabiee
- Department of Biomaterials, Saveetha Dental College and Hospitals, SIMATS, Saveetha University, Chennai, 600077 India
| | - Yavuz Nuri Ertas
- Department of Biomedical Engineering, Erciyes University, Kayseri 38039, Türkiye; ERNAM-Nanotechnology Research and Application Center, Erciyes University, Kayseri 38039, Türkiye; UNAM-National Nanotechnology Research Center, Bilkent University, Ankara 06800, Türkiye.
| | - Ying Mao
- Department of Oncology, Suining Central Hospital, Suining City, Sichuan, China.
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24
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Choeybundit W, Karbowiak T, Lagorce A, Ngiwngam K, Auras R, Rachtanapun P, Noiwan D, Tongdeesoontorn W. Eco-Friendly Straws: A Fusion of Soy Protein Isolate and Cassava Starch Coated with Beeswax and Shellac Wax. Polymers (Basel) 2024; 16:1887. [PMID: 39000742 PMCID: PMC11244279 DOI: 10.3390/polym16131887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 06/22/2024] [Accepted: 06/25/2024] [Indexed: 07/17/2024] Open
Abstract
This research aimed to produce eco-friendly straws using soy protein isolate (SPI) and cassava starch (CS) at different ratios by the extrusion technique and by coating with beeswax and shellac wax. Three straw formulations (F) (F1: 24.39% SPI-24.39% CS; F2: 19.51% SPI-29.37% CS; and F3: 14.63% SPI-34.15% CS) were prepared, incorporating glycerol (14.6% w/w) and water (36.6% w/w). After extrusion and drying at 80 °C for 20 h, visual assessment favored F2 straws due to smoother surfaces, the absence of particles, and enhanced straightness. For the physical property test, the straws were softened in pH buffer solutions for 5 min. To simulate practical application, mechanical bending strength was studied under different relative humidity (RH) settings. Water absorption reduced the strength as RH increased. F2 straws outperformed other formulations in bending strength at 54% RH. For hydrophobic coatings, F2 was chosen. Beeswax- and shellac wax-coated straws displayed negligible water absorption and sustained their integrity for over 6 h compared to uncoated straws. This study shows that extrusion and natural coatings may make sustainable straws from SPI and CS. These efforts help meet the growing demand for eco-friendly plastic alternatives, opening up new options for single-use straws.
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Affiliation(s)
- Wissuta Choeybundit
- School of Agro-Industry, Mae Fah Luang University, Tasud, Chiang Rai 57100, Thailand; (W.C.); (K.N.)
- Research Center of Innovation Food Packaging and Biomaterials Unit, Mae Fah Luang University, Tasud, Chiang Rai 57100, Thailand
| | - Thomas Karbowiak
- Institut Agro Dijon, PAM UMR 02 102, Université Bourgogne Franche-Comté, 1 Esplanade Erasme, 21000 Dijon, France; (T.K.); (A.L.)
| | - Aurélie Lagorce
- Institut Agro Dijon, PAM UMR 02 102, Université Bourgogne Franche-Comté, 1 Esplanade Erasme, 21000 Dijon, France; (T.K.); (A.L.)
| | - Kittaporn Ngiwngam
- School of Agro-Industry, Mae Fah Luang University, Tasud, Chiang Rai 57100, Thailand; (W.C.); (K.N.)
- Research Center of Innovation Food Packaging and Biomaterials Unit, Mae Fah Luang University, Tasud, Chiang Rai 57100, Thailand
| | - Rafael Auras
- School of Packaging, Michigan State University, 448 Wilson Rd, East Lansing, MI 48824, USA;
| | - Pornchai Rachtanapun
- Division of Packaging Technology, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand;
- The Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50100, Thailand
- Center of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Duangjai Noiwan
- Department of Postharvest Technology, Faculty of Engineering and Agro-Industry, Maejo University, Chiang Mai 50290, Thailand;
| | - Wirongrong Tongdeesoontorn
- School of Agro-Industry, Mae Fah Luang University, Tasud, Chiang Rai 57100, Thailand; (W.C.); (K.N.)
- Research Center of Innovation Food Packaging and Biomaterials Unit, Mae Fah Luang University, Tasud, Chiang Rai 57100, Thailand
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25
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Omer AM, Sadik WA, Abbas R, Tamer TM, Abd-Ellatif MM, Mohy-Eldin MS. Novel amino-ethyl carboxymethyl cellulose crosslinked ampholyte hydrogel development for Methyl orange removal from waste water. Sci Rep 2024; 14:14701. [PMID: 38926430 PMCID: PMC11208504 DOI: 10.1038/s41598-024-64245-8] [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: 09/30/2023] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
In the modern era, with the rapid growth of various industries, the issues of energy crisis and environmental pollution have garnered increasing attention. One significant source of industrial pollution is printing and dyeing wastewater. This wastewater often contains dyes that have aromatic structures and azo groups, such as Methyl orange (MO), which are both toxic and difficult to degrade. If these dyes are released into the wastewater stream without any treatment, they can have adverse effects on ecological balance and human health. Therefore, it is crucial to identify suitable treatment strategies to efficiently remove dyes from wastewater systems before discharge. In this study, the Methyl orange (MO) azo dye has been removed from dyes-contaminated wastewater, for the first time, using a novel amino-ethyl carboxymethyl cellulose crosslinked ampholyte hydrogel (AECMC). Different characterization methods, including FTIR, TGA, and DSC were used to characterize the generated AECMC compounds. The water absorption and cationic exchange capacities were assessed. Factors affecting the MO anions adsorption including MO concentration, adsorption pH, temperature, time, adsorbent dose, and agitation speed have been investigated. Moreover, the kinetics of the adsorption process was assessed by the use of three models: pseudo-first-order, Pseudo-second-order, and Elovich. Moreover, the mechanism of the adsorption process was monitored using the Intraparticle diffusion and Boyd models. Additionally, the adsorption isotherm was examined using established models such as Langmuir, Freundlich, and Temkin isotherms. The thermodynamic characteristics of the MO adsorption process have been investigated at various adsorption temperatures using the Van't Hoff model. The results obtained from the study indicate that the process of MO adsorption adhered to the Pseudo-second-order kinetic model, the Langmuir isotherm model was found to be applicable, and spontaneous and exhibited an endothermic character. In conclusion, the developed novel amino-ethyl carboxymethyl cellulose crosslinked ampholyte hydrogels (AECMC) have successive in the removal of the MO anionic dye from contaminated wastewater.
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Affiliation(s)
- Ahmed M Omer
- Polymer Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria, 21934, Egypt
| | - Wagih A Sadik
- Department of Materials Science, Institute of Graduate Studies and Research, Alexandrian University, Alexandria, Egypt
| | - Rafik Abbas
- Department of Materials Science, Institute of Graduate Studies and Research, Alexandrian University, Alexandria, Egypt
| | - Tamer M Tamer
- Polymer Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria, 21934, Egypt
| | - Mai M Abd-Ellatif
- Department of Materials Science, Institute of Graduate Studies and Research, Alexandrian University, Alexandria, Egypt
| | - Mohamed S Mohy-Eldin
- Polymer Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria, 21934, Egypt.
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26
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Amamou O, Kefil S, Denis JP, Boubaker T, Cardinal S. Revisiting the Determination of the Degree of Deacetylation Using Potentiometric Titration: A New Equation for Modified Chitosan. Molecules 2024; 29:2962. [PMID: 38998916 PMCID: PMC11242947 DOI: 10.3390/molecules29132962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 06/14/2024] [Accepted: 06/16/2024] [Indexed: 07/14/2024] Open
Abstract
Chitosan is a biopolymer that can be subjected to a variety of chemical modifications to generate new materials. The properties of modified chitosan are affected by its degree of deacetylation (DDA), which corresponds to the percentage of D-glucosamine monomers in its polymeric structure. Potentiometric titration is amongst the simplest, most readily available, and most cost-effective methods of determining the DDA. However, this method often suffers from a lack of precision, especially for modified chitosan resins. This is in large part because the equation used to calculate the DDA does not consider the molecular weight of the chemically modified monomeric units. In this paper, we introduce a new equation that is especially suited for modified chitosan bearing three different types of monomers. To test this equation, we prepared naphthalene-chitosan resins and subjected them to potentiometric titration. Our results show that our new equation, which is truer to the real structure of the polymeric chains, gives higher DDA values than those of the routinely used equations. These results show that the traditional equations underestimate the DDA of modified chitosan resins.
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Affiliation(s)
- Ons Amamou
- Département de Biologie, Chimie et Géographie, Université du Québec à Rimouski, Rimouski, QC G5L 3A1, Canada
- Laboratoire de Chimie Hétérocyclique, Produits Naturels et Réactivité (LR11S39), Faculté des Sciences, Université de Monastir, Monastir 5000, Tunisia
| | - Sarah Kefil
- Département de Biologie, Chimie et Géographie, Université du Québec à Rimouski, Rimouski, QC G5L 3A1, Canada
| | - Jean-Philippe Denis
- Département de Biologie, Chimie et Géographie, Université du Québec à Rimouski, Rimouski, QC G5L 3A1, Canada
| | - Taoufik Boubaker
- Laboratoire de Chimie Hétérocyclique, Produits Naturels et Réactivité (LR11S39), Faculté des Sciences, Université de Monastir, Monastir 5000, Tunisia
| | - Sébastien Cardinal
- Département de Biologie, Chimie et Géographie, Université du Québec à Rimouski, Rimouski, QC G5L 3A1, Canada
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27
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Syromiatnikova VY, Kvon AI, Starostina IG, Gomzikova MO. Strategies to enhance the efficacy of FGF2-based therapies for skin wound healing. Arch Dermatol Res 2024; 316:405. [PMID: 38878084 DOI: 10.1007/s00403-024-02953-x] [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: 01/22/2024] [Revised: 01/22/2024] [Accepted: 04/26/2024] [Indexed: 06/23/2024]
Abstract
Basic fibroblast growth factor (FGF2 or bFGF) is critical for optimal wound healing. Experimental studies show that local application of FGF2 is a promising therapeutic approach to stimulate tissue regeneration, including for the treatment of chronic wounds that have a low healing potential or are characterised by a pathologically altered healing process. However, the problem of low efficiency of growth factors application due to their rapid loss of biological activity in the aggressive proteolytic environment of the wound remains. Therefore, ways to preserve the efficacy of FGF2 for wound treatment are being actively developed. This review considers the following strategies to improve the effectiveness of FGF2-based therapy: (1) use of vehicles/carriers for delivery and gradual release of FGF2; (2) chemical modification of FGF2 to increase the stability of the molecule; (3) use of genetic constructs encoding FGF2 for de novo synthesis of protein in the wound. In addition, this review discusses FGF2-based therapeutic strategies that are undergoing clinical trials and demonstrating the efficacy of FGF2 for skin wound healing.
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Affiliation(s)
- V Y Syromiatnikova
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, 420008, Russia
| | - A I Kvon
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, 420008, Russia
| | - I G Starostina
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, 420008, Russia
| | - M O Gomzikova
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, 420008, Russia.
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28
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Triunfo M, Guarnieri A, Ianniciello D, Coltelli MB, Salvia R, Scieuzo C, De Bonis A, Falabella P. A comprehensive characterization of Hermetia illucens derived chitosan produced through homogeneous deacetylation. Int J Biol Macromol 2024; 271:132669. [PMID: 38801847 DOI: 10.1016/j.ijbiomac.2024.132669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 04/30/2024] [Accepted: 05/24/2024] [Indexed: 05/29/2024]
Abstract
The increasing demand for chitin and chitosan is driving research to explore alternative sources to crustaceans. Insects, particularly bioconverters as Hermetia illucens, are promising substitutes as they process food industry waste into valuable molecules, including chitin. Chitosan can be produced by chitin deacetylation: hot deacetylation to obtain a heterogeneous chitosan, the commonly produced, and cold deacetylation to obtain a homogeneous chitosan, not widely available. The two different treatments lead to a different arrangement of the amine and acetyl groups in the chitosan structure, affecting its molecular weight, deacetylation degree, and biological activity. This is the first report on the production and chemical-physical and biological characterization of homogenous chitosan derived from H. illucens larvae, pupal exuviae, and adults. This work, in addition to the report on heterogeneous chitosan by our research group, completes the overview of H. illucens chitosan. The yield values obtained for homogeneous chitosan from pupal exuviae (3 and 7 %) are in the range of insect (2-8 %) and crustaceans (4-15 %) chitosan. The evaluation of the antioxidant activity and antimicrobial properties against Gram-negative (Escherichia coli) and Gram-positive (Micrococcus flavus) bacteria confirmed the great versatility of H. illucens chitosan for biomedical and industrial applications and its suitability as an alternative source to crustaceans.
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Affiliation(s)
- Micaela Triunfo
- Department of Sciences, University of Basilicata - Via dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Anna Guarnieri
- Department of Sciences, University of Basilicata - Via dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Dolores Ianniciello
- Department of Sciences, University of Basilicata - Via dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Maria Beatrice Coltelli
- Department of Civil and Industrial Engineering, University of Pisa - Largo Lucio Lazzarino, 56122 Pisa, Italy
| | - Rosanna Salvia
- Department of Sciences, University of Basilicata - Via dell'Ateneo Lucano 10, 85100 Potenza, Italy; Spinoff XFlies s.r.l, University of Basilicata, Via dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Carmen Scieuzo
- Department of Sciences, University of Basilicata - Via dell'Ateneo Lucano 10, 85100 Potenza, Italy; Spinoff XFlies s.r.l, University of Basilicata, Via dell'Ateneo Lucano 10, 85100 Potenza, Italy.
| | - Angela De Bonis
- Department of Sciences, University of Basilicata - Via dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Patrizia Falabella
- Department of Sciences, University of Basilicata - Via dell'Ateneo Lucano 10, 85100 Potenza, Italy; Spinoff XFlies s.r.l, University of Basilicata, Via dell'Ateneo Lucano 10, 85100 Potenza, Italy.
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29
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George VPJ, Zhao K, Chen P, Hu J. Chitosan-nanoclay embolic material for catheter-directed arterial embolization. J Biomed Mater Res A 2024; 112:914-930. [PMID: 38229508 PMCID: PMC10984788 DOI: 10.1002/jbm.a.37670] [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: 08/25/2023] [Revised: 11/21/2023] [Accepted: 01/02/2024] [Indexed: 01/18/2024]
Abstract
Minimally invasive transcatheter embolization is a common nonsurgical procedure in interventional radiology. It is used for the deliberate occlusion of blood vessels for the treatment of disease or injured vasculature, including vascular malformation and malignant/benign tumors. Here, we introduce a gel embolic agent comprising chitosan nanofibers and nanoclay with excellent catheter injectability and tunable mechanical properties for embolization. The properties of the gel were optimized by varying the ratio between each individual component and also adjusting the total solid content. The rheological studies confirm the shear thinning property and gel nature of the developed gel as well as their recoverability. Injection force was measured to record the force required to pass the embolic gel through a clinically relevant catheter, evaluating for practicality of hand-injection. Theoretical predicted injection force was calculated to reduce the development time and to enhance the physician's experience. The stability of occlusion was also tested in vitro by monitoring the pressure required to displace the gel. The engineered gels exhibited sterility, hemocompatibility and cell biocompatibility, highlighting their potential for transcatheter embolization.
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Affiliation(s)
- Varghese P J George
- Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC, USA
| | - Keren Zhao
- Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC, USA
| | - Peng Chen
- Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC, USA
| | - Jingjie Hu
- Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC, USA
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30
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Hackman J, Woodley A, Carter D, Strahm B, Averill C, Vilgalys R, Garcia K, Cook R. Fungal biomass and ectomycorrhizal community assessment of phosphorus responsive Pinus taeda plantations. FRONTIERS IN FUNGAL BIOLOGY 2024; 5:1401427. [PMID: 38863761 PMCID: PMC11165416 DOI: 10.3389/ffunb.2024.1401427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 05/06/2024] [Indexed: 06/13/2024]
Abstract
Ectomycorrhizal fungi and non-ectomycorrhizal fungi are responsive to changes in environmental and nutrient availabilities. Although many species of ectomycorrhizas are known to enhance the uptake of phosphorus and other nutrients for Pinus taeda, it is not understood how to optimize these communities to have tangible effects on plantation silviculture and P use efficiency. The first step of this process is the identification of native fungi present in the system that are associated with P. taeda and influence P uptake efficiency. We used sand-filled mesh bags baited with finely ground apatite to sample ectomycorrhizal and non-ectomycorrhizal fungi associated with the rhizosphere of P-responsive P. taeda under several field conditions. Mesh bags were assessed for biomass accumulation over three years using a single three-month burial period pre-harvest and three six-month burial periods post-planting. Amplicon sequencing assessed ectomycorrhizal and non-ectomycorrhizal communities between phosphorus treatments, sites, mesh bags, and the rhizosphere of actively growing P. taeda in the field. We found biomass accumulation within the mesh bags was inversely related to increasing phosphorus fertilization (carryover) rates from pre-harvest to post-planting. Up to 25% increases in total biomass within the bags were observed for bags baited with P. Taxonomic richness was highest in Alfisol soils treated with phosphorus from the previous rotation and lowest in the Spodosol regardless of phosphorus treatment.
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31
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Giraldo JD, García Y, Vera M, Garrido-Miranda KA, Andrade-Acuña D, Marrugo KP, Rivas BL, Schoebitz M. Alternative processes to produce chitin, chitosan, and their oligomers. Carbohydr Polym 2024; 332:121924. [PMID: 38431399 DOI: 10.1016/j.carbpol.2024.121924] [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: 11/30/2023] [Revised: 01/20/2024] [Accepted: 02/05/2024] [Indexed: 03/05/2024]
Abstract
Sustainable recovery of chitin and its derivatives from shellfish waste will be achieved when the industrial production of these polymers is achieved with a high control of their molecular structure, low costs, and acceptable levels of pollution. Therefore, the conventional chemical method for obtaining these biopolymers needs to be replaced or optimized. The goal of the present review is to ascertain what alternative methods are viable for the industrial-scale production of chitin, chitosan, and their oligomers. Therefore, a detailed review of recent literature was undertaken, focusing on the advantages and disadvantages of each method. The analysis of the existing data allows suggesting that combining conventional, biological, and alternative methods is the most efficient strategy to achieve sustainable production, preventing negative impacts and allowing for the recovery of high added-value compounds from shellfish waste. In conclusion, a new process for obtaining chitinous materials is suggested, with the potential of reducing the consumption of reagents, energy, and water by at least 1/10, 1/4, and 1/3 part with respect to the conventional process, respectively.
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Affiliation(s)
- Juan D Giraldo
- Escuela de Ingeniería Ambiental, Instituto de Acuicultura, Universidad Austral de Chile, Sede Puerto Montt, Balneario Pelluco, Los Pinos s/n, Chile.
| | - Yadiris García
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Autopista Concepción-Talcahuano 7100, Talcahuano, Chile
| | - Myleidi Vera
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
| | - Karla A Garrido-Miranda
- Center of Waste Management and Bioenergy, Scientific and Technological Bioresource Nucleus, BIOREN-UFRO, Universidad de la Frontera, Temuco 4811230, Chile; Agriaquaculture Nutritional Genomic Center (CGNA), Temuco 4780000, Chile
| | - Daniela Andrade-Acuña
- Centro de Docencia Superior en Ciencias Básicas, Universidad Austral de Chile, Sede Puerto Montt, Los Pinos s/n. Balneario Pelluco, Puerto Montt, Chile
| | - Kelly P Marrugo
- Departamento de Química Orgánica, Escuela de Química, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile; Centro de Investigaciones en Nanotecnología y Materiales Avanzados, CIEN-UC, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
| | - Bernabé L Rivas
- Universidad San Sebastián, Sede Concepción 4080871, Concepción, Chile
| | - Mauricio Schoebitz
- Departamento de Suelos y Recursos Naturales, Facultad de Agronomía, Campus Concepción, Casilla 160-C, Universidad de Concepción, Chile; Laboratory of Biofilms and Environmental Microbiology, Center of Biotechnology, Universidad de Concepción, Barrio Universitario s/n, Concepción, Chile
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Lee ET, Song J, Lee JH, Goo BG, Park JK. Analysis of molecular structure and topological properties of chitosan isolated from crab shell and mushroom. Int J Biol Macromol 2024; 266:131047. [PMID: 38521325 DOI: 10.1016/j.ijbiomac.2024.131047] [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: 10/20/2023] [Revised: 03/04/2024] [Accepted: 03/05/2024] [Indexed: 03/25/2024]
Abstract
This investigation aimed to scrutinize the chemical and structural analogies between chitosan extracted from crab exoskeleton (High Molecular Weight Chitosan, HMWC) and chitosan obtained from mushrooms (Mushroom-derived Chitosan, MRC), and to assess their biological functionalities. The resulting hydrolysates from the hydrolysis of HMWC by chitosanase were categorized as chitosan oligosaccharides (csCOS), while those from MRC were denoted as mrCOS. The molecular weights (MW) of csCOS and mrCOS were determined using Matrix-Assisted Laser Desorption Ionization Time-of-Flight (MALDI-TOF) mass spectrometry. Furthermore, structural resemblances of csCOS and mrCOS were assessed utilizing X-ray powder diffraction (XRD) and Fourier transform infrared (FT-IR) spectroscopy. Intriguingly, no apparent structural disparity between csCOS and mrCOS was noted in terms of the glucosamine (GlcN) and N-acetylglucosamine (GlcNAc) composition ratios. Consequently, the enzymatic activities of chitosanase for HMWC and MRC exhibited remarkable similarity. A topological examination was performed between the enzyme and the substrate to deduce the alteration in MW of COSs following enzymatic hydrolysis. Moreover, the evaluation of antioxidant activity for each COS revealed insignificance in the structural disparity between HMWC and MRC. In summary, grounded on the chemical structural similarity of HMWC and MRC, we propose the potential substitution of HMWC with MRC, incorporating diverse biological functionalities.
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Affiliation(s)
- Eung Take Lee
- Department of Life Sciences, Gachon University, Seongnamdaero 1342, Seongnam-si, Gyeonggi-do 461-701, Republic of Korea
| | - Jio Song
- Department of Life Sciences, Gachon University, Seongnamdaero 1342, Seongnam-si, Gyeonggi-do 461-701, Republic of Korea
| | - Ji Hyun Lee
- Department of Life Sciences, Gachon University, Seongnamdaero 1342, Seongnam-si, Gyeonggi-do 461-701, Republic of Korea
| | - Bon Guen Goo
- Department of Preventive Dentistry, School of Dentistry, Jeonbuk National University, Jeonju, South Korea
| | - Jae Kweon Park
- Department of Life Sciences, Gachon University, Seongnamdaero 1342, Seongnam-si, Gyeonggi-do 461-701, Republic of Korea.
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Ko M, Jang T, Yoon S, Lee J, Choi JH, Choi JW, Park JA. Synthesis of recyclable and light-weight graphene oxide/chitosan/genipin sponges for the adsorption of diclofenac, triclosan, and microplastics. CHEMOSPHERE 2024; 356:141956. [PMID: 38604514 DOI: 10.1016/j.chemosphere.2024.141956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/16/2024] [Accepted: 04/07/2024] [Indexed: 04/13/2024]
Abstract
Emerging micropollutants, such as pharmaceuticals and microplastics (MPs), have become a pressing water environmental concern. The aim of this study is to synthesize chitosan sponges using graphene oxide (GO) and genipin (GP) for the removal of pharmaceuticals (diclofenac (DCF) and triclosan (TCS)) and MPs, verify their adsorption mechanisms, evaluate the effects of temperature, pH, and salinity on their adsorption capacities, and determine their reusability. The GO5/CS/GP sponge exhibited a macroporous nature (porosity = 95%, density = 32.6 mg/cm3). GO and cross-linker GP enhanced the adsorption of DCF, TCS, and polystyrene (PS) MPs onto the CS sponges. The adsorption of DCF, TCS, and PS MPs involved multiple steps: surface diffusion and pore diffusion of the sponge. The adsorption isotherms demonstrated that Langmuir model was the most fitted well model to explain adsorption of TCS (qm = 7.08 mg/g) and PS MPs (qm = 7.42 mg/g) on GO5/CS/GP sponge, while Freundlich model suited for DCF adsorption (qm = 48.58 mg/g). DCF adsorption was thermodynamically spontaneous and endothermic; however, the adsorption of TCS and PS MPs was exothermic (283-313 K). The optimal pH was 5.5-7 due to the surface charge of the GO5/CS/GP sponge (pHzpc = 5.76) and ionization of DCF, TCS, and PS MPs. As the salinity increased, DCF removal efficiency drastically decreased due to the weakening of electrostatic interactions; however, TCS removal efficiency remained stable because TCS adsorption was mainly caused by hydrophobic and π-π interactions rather than electrostatic interaction. The removal of PS MPs was enhanced by the electrostatic screening effects of high Na+ ions. PS nanoplastics (average size = 26 nm) were removed by the GO5/CS/GP sponge at a rate of 73.0%, which was better than that of PS MPs (41.5%). In addition, the GO5/CS/GP sponge could be recycled over five adsorption-desorption cycles.
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Affiliation(s)
- Mingi Ko
- Department of Environmental Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Taesoon Jang
- Department of Environmental Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Soyeong Yoon
- Department of Environmental Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Jooyoung Lee
- Department of Environmental Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Jin-Hyuk Choi
- Department of Integrated Energy and Infra System, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Jae-Woo Choi
- Water Cycle Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea; Division of Energy & Environment Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea
| | - Jeong-Ann Park
- Department of Environmental Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea; Department of Integrated Energy and Infra System, Kangwon National University, Chuncheon 24341, Republic of Korea.
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Li R, Jiang C, Li X, Zhou Y, You L, Wang Q, Tang W, Yu Z, Yang F, Li X. Pretreatment of chitin depolymerization by expansin-like protein to improve hydrolysis efficiency. Heliyon 2024; 10:e29643. [PMID: 38655343 PMCID: PMC11036043 DOI: 10.1016/j.heliyon.2024.e29643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 04/10/2024] [Accepted: 04/11/2024] [Indexed: 04/26/2024] Open
Abstract
Chitin is a polysaccharide similar to cellulose that contains abundant hydrogen bonds. Expansin-like proteins disrupt hydrogen bond networks, causing cellulose to swell and accelerating its degradation. We examined the effects of pretreatment with two expansin-like proteins, CxEXL22 (Arthrobotrys sp. CX1) and HcEXL (Hahella chejuensis), on chitin depolymerisation and enzymatic degradation. The efficiency of chitin degradation increased more than two-fold after pretreatment with expansin-like proteins. Following pretreatment with expansin-like proteins, chitin had a lower crystallinity index, greater d-spacing and crystallite size, and weaker hydrogen bonds, and the loosened porous microfibrils were more exposed than in untreated chitin. The rupture characterisation of crystalline chitin indicated that expansin-like proteins loosened the hydrogen bonds of the chitin polysaccharide chains, causing significant depolymerisation to expose more porous structures and enhance chitin accessibility.
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Affiliation(s)
- Rong Li
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China
| | - Chang Jiang
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China
| | - Xiaodan Li
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China
| | - Yihao Zhou
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China
| | - Linlu You
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China
| | - Qiushi Wang
- Laboratory Animal Center, Affiliated Zhongshan Hospital of Dalian University, Dalian, 116001, China
| | - Wenzhu Tang
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China
| | - Zhimin Yu
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China
| | - Fan Yang
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China
| | - Xianzhen Li
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China
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Park CH, Kim MP. Advanced Triboelectric Applications of Biomass-Derived Materials: A Comprehensive Review. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1964. [PMID: 38730775 PMCID: PMC11084935 DOI: 10.3390/ma17091964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 04/15/2024] [Accepted: 04/18/2024] [Indexed: 05/13/2024]
Abstract
The utilization of triboelectric materials has gained considerable attention in recent years, offering a sustainable approach to energy harvesting and sensing technologies. Biomass-derived materials, owing to their abundance, renewability, and biocompatibility, offer promising avenues for enhancing the performance and versatility of triboelectric devices. This paper explores the synthesis and characterization of biomass-derived materials, their integration into triboelectric nanogenerators (TENGs), and their applications in energy harvesting, self-powered sensors, and environmental monitoring. This review presents an overview of the emerging field of advanced triboelectric applications that utilize the unique properties of biomass-derived materials. Additionally, it addresses the challenges and opportunities in employing biomass-derived materials for triboelectric applications, emphasizing the potential for sustainable and eco-friendly energy solutions.
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Affiliation(s)
- Chan Ho Park
- Department of Chemical and Biological Engineering, Gachon University, 1342 Seongnamdaero, Sujeong-gu, Seongnam-si 13120, Republic of Korea
| | - Minsoo P. Kim
- Department of Chemical Engineering, Sunchon National University, Suncheon 57922, Republic of Korea
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36
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Blinova E, Korel A, Zemlyakova E, Pestov A, Samokhin A, Zelikman M, Tkachenko V, Bets V, Arzhanova E, Litvinova E. Cytotoxicity and Degradation Resistance of Cryo- and Hydrogels Based on Carboxyethylchitosan at Different pH Values. Gels 2024; 10:272. [PMID: 38667691 PMCID: PMC11049456 DOI: 10.3390/gels10040272] [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: 02/28/2024] [Revised: 04/04/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
Background: The use of chitosan-based gels is still limited due to their restricted solubility in acid solutions, where the molecules have a positive charge. The functionalization of chitosan makes it possible to significantly expand the possibilities of using both the polymer itself and hydrogels based on its derivatives. Objective: To evaluate the effect of the conditions for the production of cryo- and hydrogels based on carboxyethylchitosan (CEC) crosslinked with glutaraldehyde on gel swelling and its resistance to degradation depending on pH and cytotoxic effects and to test the hypothesis that the amount of crosslinking agent during synthesis may affect the cytotoxicity of the gel. Methods: Gels' swelling values and degradation resistance were determined using the gravimetric method. The cytotoxic effect was evaluated during the co-cultivation of gels in the presence of human fibroblasts using light optical microscopy and flow cytometry. Results: All CEC-based cryogels had a higher equilibrium swelling value and degradation time than the CEC hydrogel in the pH range from 4.6 to 8.0. This demonstrates the superiority of cryogels relative to CEC-based hydrogels in terms of swelling potential and degradation resistance, while an increase in the number of crosslinks with glutaraldehyde contributes to longer swelling of the cryogel. The positive control (intact fibroblasts) and all gel samples were statistically identical in the number of viable cells. On the third day, the viability of the fibroblast cells was consistently high (above 95%) and did not differ between all tested CEC-based gels. And in general, the cell morphology analysis results corresponded with the results obtained in the flow cytometry-based cytotoxicity test. We also did not find proof in our experiment to support our hypothesis that the amount of crosslinking agent during synthesis may affect the cytotoxicity of the material.
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Affiliation(s)
- Elena Blinova
- Faculty of Physical Engineering, Novosibirsk State Technical University, 630073 Novosibirsk, Russia; (E.B.); (A.K.); (V.B.); (E.A.); (E.L.)
| | - Anastasia Korel
- Faculty of Physical Engineering, Novosibirsk State Technical University, 630073 Novosibirsk, Russia; (E.B.); (A.K.); (V.B.); (E.A.); (E.L.)
| | - Ekaterina Zemlyakova
- Institute of Organic Synthesis n.a. I. Ya. Postovsky UB RAS, 620137 Ekaterinburg, Russia; (E.Z.); (A.P.)
| | - Alexander Pestov
- Institute of Organic Synthesis n.a. I. Ya. Postovsky UB RAS, 620137 Ekaterinburg, Russia; (E.Z.); (A.P.)
| | - Alexander Samokhin
- Faculty of Physical Engineering, Novosibirsk State Technical University, 630073 Novosibirsk, Russia; (E.B.); (A.K.); (V.B.); (E.A.); (E.L.)
| | - Maxim Zelikman
- Institute of Solid State Chemistry and Mechanochemistry SB RAS, 630090 Novosibirsk, Russia;
| | - Vadim Tkachenko
- Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia;
| | - Viktoria Bets
- Faculty of Physical Engineering, Novosibirsk State Technical University, 630073 Novosibirsk, Russia; (E.B.); (A.K.); (V.B.); (E.A.); (E.L.)
| | - Elena Arzhanova
- Faculty of Physical Engineering, Novosibirsk State Technical University, 630073 Novosibirsk, Russia; (E.B.); (A.K.); (V.B.); (E.A.); (E.L.)
| | - Ekaterina Litvinova
- Faculty of Physical Engineering, Novosibirsk State Technical University, 630073 Novosibirsk, Russia; (E.B.); (A.K.); (V.B.); (E.A.); (E.L.)
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Gorantla A, Hall JTVE, Troidle A, Janjic JM. Biomaterials for Protein Delivery: Opportunities and Challenges to Clinical Translation. MICROMACHINES 2024; 15:533. [PMID: 38675344 PMCID: PMC11052476 DOI: 10.3390/mi15040533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/11/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024]
Abstract
The development of biomaterials for protein delivery is an emerging field that spans materials science, bioengineering, and medicine. In this review, we highlight the immense potential of protein-delivering biomaterials as therapeutic options and discuss the multifaceted challenges inherent to the field. We address current advancements and approaches in protein delivery that leverage stimuli-responsive materials, harness advanced fabrication techniques like 3D printing, and integrate nanotechnologies for greater targeting and improved stability, efficacy, and tolerability profiles. We also discuss the demand for highly complex delivery systems to maintain structural integrity and functionality of the protein payload. Finally, we discuss barriers to clinical translation, such as biocompatibility, immunogenicity, achieving reliable controlled release, efficient and targeted delivery, stability issues, scalability of production, and navigating the regulatory landscape for such materials. Overall, this review summarizes insights from a survey of the current literature and sheds light on the interplay between innovation and the practical implementation of biomaterials for protein delivery.
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Affiliation(s)
- Amogh Gorantla
- Department of Engineering, Wake Forest University, Winston-Salem, NC 27109, USA;
| | | | | | - Jelena M. Janjic
- School of Pharmacy, Duquesne University, Pittsburgh, PA 15282, USA;
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38
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Kumari N, Hussain A, Ghosh Sachan S. Microbes as a tool for the bioremediation of fish waste from the environment and the production of value-added compounds: a review. Lett Appl Microbiol 2024; 77:ovae028. [PMID: 38490739 DOI: 10.1093/lambio/ovae028] [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: 07/24/2023] [Revised: 02/22/2024] [Accepted: 03/14/2024] [Indexed: 03/17/2024]
Abstract
Fish are the most edible protein source worldwide and generate several remnants such as scales, viscera, head, bone, and skin. Fish wastes are not disposed of properly, which adversely affects the environment, especially the water bodies where fish processing industries dispose of their waste. Fish waste mainly contains nitrogen, oil, fat, salts, heavy metals, and organic compounds, which increase the biological oxygen demand and chemical oxygen demand. Fish waste can degrade in various ways, such as physicochemical or by enzymatic action, but using microbes is an environmentally friendly approach that can provide valuable compounds such as products such as collagen, chitin, minerals, and fish protein concentrates. This review is designed to focus on the suitability of microbes as tools for fish waste degradation and the production of certain associated. This study also provides insight into the production of other compounds such as protease, chitinase, and chitin applicability of these products. After processing, fish waste as a microbial growth media for enzyme production since microorganisms synthesize enzymes such as proteases, protein hydrolysates, lipids, and chitinase, which have broader applications in the pharmaceutical, cosmetic, biomedical material, and food processing industries.
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Affiliation(s)
- Neha Kumari
- Department of Bioengineering and Biotechnology, Birla Institute of Technology, Ranchi 835215 Jharkhand, India
| | - Ahmed Hussain
- Department of Bioengineering and Biotechnology, Birla Institute of Technology, Ranchi 835215 Jharkhand, India
| | - Shashwati Ghosh Sachan
- Department of Bioengineering and Biotechnology, Birla Institute of Technology, Ranchi 835215 Jharkhand, India
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Das S, Jegadeesan JT, Basu B. Gelatin Methacryloyl (GelMA)-Based Biomaterial Inks: Process Science for 3D/4D Printing and Current Status. Biomacromolecules 2024; 25:2156-2221. [PMID: 38507816 DOI: 10.1021/acs.biomac.3c01271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Tissue engineering for injured tissue replacement and regeneration has been a subject of investigation over the last 30 years, and there has been considerable interest in using additive manufacturing to achieve these goals. Despite such efforts, many key questions remain unanswered, particularly in the area of biomaterial selection for these applications as well as quantitative understanding of the process science. The strategic utilization of biological macromolecules provides a versatile approach to meet diverse requirements in 3D printing, such as printability, buildability, and biocompatibility. These molecules play a pivotal role in both physical and chemical cross-linking processes throughout the biofabrication, contributing significantly to the overall success of the 3D printing process. Among the several bioprintable materials, gelatin methacryloyl (GelMA) has been widely utilized for diverse tissue engineering applications, with some degree of success. In this context, this review will discuss the key bioengineering approaches to identify the gelation and cross-linking strategies that are appropriate to control the rheology, printability, and buildability of biomaterial inks. This review will focus on the GelMA as the structural (scaffold) biomaterial for different tissues and as a potential carrier vehicle for the transport of living cells as well as their maintenance and viability in the physiological system. Recognizing the importance of printability toward shape fidelity and biophysical properties, a major focus in this review has been to discuss the qualitative and quantitative impact of the key factors, including microrheological, viscoelastic, gelation, shear thinning properties of biomaterial inks, and printing parameters, in particular, reference to 3D extrusion printing of GelMA-based biomaterial inks. Specifically, we emphasize the different possibilities to regulate mechanical, swelling, biodegradation, and cellular functionalities of GelMA-based bio(material) inks, by hybridization techniques, including different synthetic and natural biopolymers, inorganic nanofillers, and microcarriers. At the close, the potential possibility of the integration of experimental data sets and artificial intelligence/machine learning approaches is emphasized to predict the printability, shape fidelity, or biophysical properties of GelMA bio(material) inks for clinically relevant tissues.
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Affiliation(s)
- Soumitra Das
- Materials Research Centre, Indian Institute of Science, Bangalore, India 560012
| | | | - Bikramjit Basu
- Materials Research Centre, Indian Institute of Science, Bangalore, India 560012
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40
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Liu J, Zhang Z, Deng Y, Chen G. Effect of extraction method on the structure and bioactivity of polysaccharides from activated sludge. WATER RESEARCH 2024; 253:121196. [PMID: 38394931 DOI: 10.1016/j.watres.2024.121196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 01/09/2024] [Accepted: 01/23/2024] [Indexed: 02/25/2024]
Abstract
Resource recovery is a pivotal facet of waste activated sludge treatment, particularly within the framework of carbon neutrality and the circular economy. Polysaccharides are emerging as a valuable resource from waste activated sludge, and the choice of extraction method affects the properties of the polysaccharides, which is of utmost importance for subsequent application. This investigation examined the effects of six extraction methods (i.e., acidic, alkaline, ultrasonication, hot-water, microwave, and electric treatments) on the yield, chemical composition, structural characteristics, and bioactivities of polysaccharides extracted from sludge. For each extraction method, two operational parameters, namely the treatment time and strength (e.g., the acid and alkali concentration), were initially optimized in terms of the polysaccharide yield. The polysaccharide yield varied from 1.03 ± 0.12 % to 5.34 ± 0.10 % adopting the extraction methods under optimized conditions, and the alkaline extraction method had the highest yield of polysaccharides with a treatment time of 120 min and NaOH concentration of 1 %. At least one polysaccharide fraction was successfully purified from the crude polysaccharide of each extraction method. The compositions and structures of these fractions, including carbohydrate, protein, sulfate, uronic acid contents, and monosaccharide compositions, were determined. Carbohydrate was the dominant component, with the hot-water-2 fraction having the highest carbohydrate content (77.90 % ± 2.02 %). Monosaccharides in the polysaccharides were measured, with mannose, rhamnose, glucose, and xylose being found in all fractions, whereas ribose was exclusively found in the acid-1 fraction. The molecular weights of these fractions ranged between 1.60 × 104 Da and 7.11 × 106 Da. Furthermore, the bioactivities of the polysaccharides, encompassing five anti-oxidant and three anti-coagulant properties, were assessed, with the ultrasonication-1 fraction having superior performance in seven of the assays. Finally, the association among the fractions in terms of composition and bioactivity was assessed adopting cluster analysis and regression methods. The findings underscore the effect of the extraction method on the properties of polysaccharides extracted from sludge, thereby providing valuable insights for the prospective applications of polysaccharides.
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Affiliation(s)
- Jie Liu
- Department of Civil and Environmental Engineering, Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution (Hong Kong Branch) and Water Technology Center, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Zi Zhang
- Department of Civil and Environmental Engineering, Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution (Hong Kong Branch) and Water Technology Center, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Yangfan Deng
- Department of Civil and Environmental Engineering, Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution (Hong Kong Branch) and Water Technology Center, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Guanghao Chen
- Department of Civil and Environmental Engineering, Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution (Hong Kong Branch) and Water Technology Center, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China; Wastewater Treatment Laboratory, Fok Ying Tung Graduate School, The Hong Kong University of Science and Technology, Guangzhou, China.
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41
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Xue T, Zhou L, Wang F, Tian Z, Li N, Ye T, Hao R, Yang L, Gu R, Gan H, Wu Z, Zhu X, Liu S, Sun Y, Dou G, Meng Z. A novel method to quantify chitosan in aqueous solutions by ultrahigh-performance liquid chromatography-tandem mass spectrometry. Carbohydr Polym 2024; 329:121758. [PMID: 38286539 DOI: 10.1016/j.carbpol.2023.121758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/21/2023] [Accepted: 12/28/2023] [Indexed: 01/31/2024]
Abstract
In this study, a novel and accurate quantitative analysis method for the direct determination of chitosan (CS) in aqueous solutions using ultrahigh-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) is presented. By detecting the mass spectrum response intensity of a series of CS characteristic ion pairs, the sample concentration (abscissa) was linearly fitted with the total ion current (TIC) response intensity of its characteristic ion pairs (ordinate). A reliable standard curve was derived for quantifying CS in the range of 125-4000 ng/mL. Under the detection conditions, this CS quantification method yielded acceptable specificity (no interference peak), linearity (with correlation coefficient (r2) values >0.999), precision (acceptable limit RSDr < 3 %, RSDR < 6 %), accuracy (RE within the acceptable limits of ±5 %), and stability (acceptable limit RE within ±5 %, RSDr < 3 %). Moreover, the applicability of measurement was verified when a series of substrates did not interact with CS in the solution. Results have verified the applicability of this method for determining CS content in different composites. This study provides a method for determining CS content with significant practical value and economic benefit.
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Affiliation(s)
- Ting Xue
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Lei Zhou
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Fanjun Wang
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Zhuang Tian
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Nanxi Li
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Tong Ye
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Ruolin Hao
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Lei Yang
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Ruolan Gu
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Hui Gan
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Zhuona Wu
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Xiaoxia Zhu
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Shuchen Liu
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Yunbo Sun
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Guifang Dou
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Zhiyun Meng
- Beijing Institute of Radiation Medicine, Beijing 100850, China.
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Sánchez-Cid P, Alonso-González M, Jiménez-Rosado M, Benhnia MREI, Ruiz-Mateos E, Ostos FJ, Romero A, Perez-Puyana VM. Effect of different crosslinking agents on hybrid chitosan/collagen hydrogels for potential tissue engineering applications. Int J Biol Macromol 2024; 263:129858. [PMID: 38423911 DOI: 10.1016/j.ijbiomac.2024.129858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 12/02/2023] [Accepted: 01/29/2024] [Indexed: 03/02/2024]
Abstract
Tissue engineering (TE) demands scaffolds that have the necessary resistance to withstand the mechanical stresses once implanted in our body, as well as excellent biocompatibility. Hydrogels are postulated as interesting materials for this purpose, especially those made from biopolymers. In this study, the microstructure and rheological performance, as well as functional and biological properties of chitosan and collagen hydrogels (CH/CG) crosslinked with different coupling agents, both natural such as d-Fructose (F), genipin (G) and transglutaminase (T) and synthetic, using a combination of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride with N-hydroxysuccinimide (EDC/NHS) will be assessed. FTIR tests were carried out to determine if the proposed crosslinking reactions for each crosslinking agent occurred as expected, obtaining positive results in this aspect. Regarding the characterization of the properties of each system, two main trends were observed, from which it could be established that crosslinking with G and EDC-NHS turned out to be more effective and beneficial than with the other two crosslinking agents, producing significant improvements with respect to the base CH/CG hydrogel. In addition, in vitro tests demonstrated the potential application in TE of these systems, especially for those crosslinked with G, T and EDC-NHS.
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Affiliation(s)
- Pablo Sánchez-Cid
- Departmento de Ingeniería Química, Facultad de Química, Escuela Politécnica Superior, Universidad de Sevilla, 41012 Sevilla, Spain.
| | - María Alonso-González
- Departmento de Ingeniería Química, Facultad de Química, Escuela Politécnica Superior, Universidad de Sevilla, 41012 Sevilla, Spain.
| | - Mercedes Jiménez-Rosado
- Departmento de Ingeniería Química, Facultad de Química, Escuela Politécnica Superior, Universidad de Sevilla, 41012 Sevilla, Spain.
| | - Mohammed Rafii-El-Idrissi Benhnia
- Departmento de Bioquímica Médica y Biología Molecular e Inmunología, Facultad de Medicina, Universidad de Sevilla, 41009 Sevilla, Spain; Instituto de Biomedicina de Sevilla, IBiS/Virgen del Rocío University Hospital/CSIC/Universidad de Sevilla, Unidad Clínica de Enfermedades Infecciosas, Microbiología y Parasitología, 41013 Sevilla, Spain.
| | - E Ruiz-Mateos
- Instituto de Biomedicina de Sevilla, IBiS/Virgen del Rocío University Hospital/CSIC/Universidad de Sevilla, Unidad Clínica de Enfermedades Infecciosas, Microbiología y Parasitología, 41013 Sevilla, Spain.
| | - Francisco J Ostos
- Departmento de Bioquímica Médica y Biología Molecular e Inmunología, Facultad de Medicina, Universidad de Sevilla, 41009 Sevilla, Spain; Instituto de Biomedicina de Sevilla, IBiS/Virgen del Rocío University Hospital/CSIC/Universidad de Sevilla, Unidad Clínica de Enfermedades Infecciosas, Microbiología y Parasitología, 41013 Sevilla, Spain.
| | - Alberto Romero
- Departmento de Ingeniería Química, Facultad de Química, Escuela Politécnica Superior, Universidad de Sevilla, 41012 Sevilla, Spain.
| | - Víctor M Perez-Puyana
- Departmento de Ingeniería Química, Facultad de Química, Escuela Politécnica Superior, Universidad de Sevilla, 41012 Sevilla, Spain.
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43
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Hameed H, Khan MA, Paiva-Santos AC, Ereej N, Faheem S. Chitin: A versatile biopolymer-based functional therapy for cartilage regeneration. Int J Biol Macromol 2024; 265:131120. [PMID: 38527680 DOI: 10.1016/j.ijbiomac.2024.131120] [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: 01/31/2024] [Revised: 03/11/2024] [Accepted: 03/21/2024] [Indexed: 03/27/2024]
Abstract
Chitin is the second most abundant biopolymer and its inherent biological characteristics make it ideal to use for tissue engineering. For many decades, its properties like non-toxicity, abundant availability, ease of modification, biodegradability, biocompatibility, and anti-microbial activity have made chitin an ideal biopolymer for drug delivery. Research studies have also shown many potential benefits of chitin in the formulation of functional therapy for cartilage regeneration. Chitin and its derivatives can be processed into 2D/3D scaffolds, hydrogels, films, exosomes, and nano-fibers, which make it a versatile and functional biopolymer in tissue engineering. Chitin is a biomimetic polymer that provides targeted delivery of mesenchymal stem cells, especially of chondrocytes at the injected donor sites to accelerate regeneration by enhancing cell proliferation and differentiation. Due to this property, chitin is considered an interesting polymer that has a high potential to provide targeted therapy in the regeneration of cartilage. Our paper presents an overview of the method of extraction, structure, properties, and functional role of this versatile biopolymer in tissue engineering, especially cartilage regeneration.
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Affiliation(s)
- Huma Hameed
- Faculty of Pharmaceutical Sciences, University of Central Punjab, Lahore 54000, Pakistan.
| | - Mahtab Ahmad Khan
- Faculty of Pharmaceutical Sciences, University of Central Punjab, Lahore 54000, Pakistan.
| | - Ana Cláudia Paiva-Santos
- Department of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, 3000-548 Coimbra, Portugal; REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, 3000-548 Coimbra, Portugal.
| | - Nelofer Ereej
- Faculty of Pharmaceutical Sciences, University of Central Punjab, Lahore 54000, Pakistan.
| | - Saleha Faheem
- Faculty of Pharmaceutical Sciences, University of Central Punjab, Lahore 54000, Pakistan.
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Hussein A, Gomha SM, El-Ghany NAA, Zaki MEA, Farag B, Al-Hussain SA, Sayed AR, Zaki YH, Mohamed NA. Green Biocatalyst for Ultrasound-Assisted Thiazole Derivatives: Synthesis, Antibacterial Evaluation, and Docking Analysis. ACS OMEGA 2024; 9:13666-13679. [PMID: 38559991 PMCID: PMC10976384 DOI: 10.1021/acsomega.3c07785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 02/22/2024] [Accepted: 02/27/2024] [Indexed: 04/04/2024]
Abstract
The catalytic activity of chitosan (Cs) and grafted Cs led to the preparation of terephthalohydrazide Cs Schiff's base hydrogel (TCsSB), which was then investigated as an eco-friendly biocatalyst for synthesizing novel thiazole derivatives. TCsSB exhibited greater surface area and higher thermal stability compared to Cs, making it a promising eco-friendly biocatalyst. We synthesized two novel series of thiazoles via the reaction of 2-(2-oxo-1,2-diphenylethylidene) hydrazine-1-carbothioamide with various hydrazonoyl chlorides and 2-bromo-1-arylethan-1-ones, employing ultrasonic irradiation and using TCsSB as a catalyst. A comparative study between Cs and TCsSB revealed higher yields than TCsSB. The methodology offered advantages such as mild reaction conditions, quick reaction times, and high yields. TCsSB could be reused multiple times without a significant loss of potency. The chemical structures of the newly synthesized compounds were verified through IR, 1H NMR, 13C NMR, and MS analyses. Six synthesized compounds were assessed for their in vitro antibacterial effectiveness by establishing the minimum inhibitory concentration against four distinct bacterial strains. The docking analyses revealed favorable binding scores against several amino acids within the selected protein (PDB Code-1MBT) for these compounds, with compound 4c exhibiting particularly noteworthy binding properties. Additionally, the in silico ADME parameter estimation for all compounds indicated favorable pharmacological properties for these compounds.
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Affiliation(s)
- Ahmed
M. Hussein
- Chemistry
Department, Faculty of Science, Beni-Suef
University, Beni-Suef 62511, Egypt
- Chemistry
Department, College of Science and Humanities—Al Quwaiiyah, Shaqra University, Shaqra 11911, Saudi Arabia
| | - Sobhi M. Gomha
- Department
of Chemistry, Faculty of Science, Islamic
University of Madinah, Madinah 42351, Saudi Arabia
| | | | - Magdi E. A. Zaki
- Department
of Chemistry, Faculty of Science, Imam Mohammad
Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Basant Farag
- Department
of Chemistry, Faculty of Science, Zagazig
University, Zagazig 44519, Egypt
| | - Sami A. Al-Hussain
- Department
of Chemistry, Faculty of Science, Imam Mohammad
Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Abdelwahed R. Sayed
- Chemistry
Department, Faculty of Science, Beni-Suef
University, Beni-Suef 62511, Egypt
| | - Yasser H. Zaki
- Chemistry
Department, Faculty of Science, Beni-Suef
University, Beni-Suef 62511, Egypt
| | - Nadia A. Mohamed
- Department
of Chemistry, Faculty of Science, Cairo
University, Giza 12613, Egypt
- Department
of Chemistry, College of Science, Qassim
University, Buraidah 51452, Saudi Arabia
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45
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Zhang R, Thoröe-Boveleth S, Chigrin DN, Kiessling F, Lammers T, Pallares RM. Nanoscale engineering of gold nanostars for enhanced photoacoustic imaging. J Nanobiotechnology 2024; 22:115. [PMID: 38493118 PMCID: PMC10943878 DOI: 10.1186/s12951-024-02379-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 02/28/2024] [Indexed: 03/18/2024] Open
Abstract
Photoacoustic (PA) imaging is a diagnostic modality that combines the high contrast resolution of optical imaging with the high tissue penetration of ultrasound. While certain endogenous chromophores can be visualized via PA imaging, many diagnostic assessments require the administration of external probes. Anisotropic gold nanoparticles are particularly valued as contrast agents, since they produce strong PA signals and do not photobleach. However, the synthesis of anisotropic nanoparticles typically requires cytotoxic reagents, which can hinder their biological application. In this work, we developed new PA probes based on nanostar cores and polymeric shells. These AuNS were obtained through one-pot synthesis with biocompatible Good's buffers, and were subsequently functionalized with polyethylene glycol, chitosan or melanin, three coatings widely used in (pre)clinical research. Notably, the structural features of the nanostar cores strongly affected the PA signal. For instance, despite displaying similar sizes (i.e. 45 nm), AuNS obtained with MOPS buffer generated between 2 and 3-fold greater signal intensities in the region between 700 and 800 nm than nanostars obtained with HEPES and EPPS buffers, and up to 25-fold stronger signals than spherical gold nanoparticles. A point source analytical model demonstrated that AuNS synthesized with MOPS displayed greater absorption coefficients than the other particles, corroborating the stronger PA responses. Furthermore, the AuNS shell not only improved the biocompatibility of the nanoconstructs but also affected their performance, with melanin coating enhancing the signal more than 4-fold, due to its own PA capacity, as demonstrated by both in vitro and ex vivo imaging. Taken together, these results highlight the strengths of gold nanoconstructs as PA probes and offer insights into the design rules for the nanoengineering of new nanodiagnostic agents.
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Affiliation(s)
- Rui Zhang
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, 52074, Aachen, Germany
| | - Sven Thoröe-Boveleth
- Institute for Occupational, Social and Environmental Medicine, Medical Faculty, RWTH Aachen University, 52074, Aachen, Germany
| | - Dmitry N Chigrin
- Institute of Physics (1A), RWTH Aachen University, 52056, Aachen, Germany
- DWI - Leibniz Institute for Interactive Materials, 52076, Aachen, Germany
| | - Fabian Kiessling
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, 52074, Aachen, Germany
| | - Twan Lammers
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, 52074, Aachen, Germany
| | - Roger M Pallares
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, 52074, Aachen, Germany.
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46
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Zeshan M, Amjed N, Ashraf H, Farooq A, Akram N, Zia KM. A review on the application of chitosan-based polymers in liver tissue engineering. Int J Biol Macromol 2024; 262:129350. [PMID: 38242400 DOI: 10.1016/j.ijbiomac.2024.129350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 12/29/2023] [Accepted: 01/07/2024] [Indexed: 01/21/2024]
Abstract
Chitosan-based polymers have enormous structural tendencies to build bioactive materials with novel characteristics, functions, and various applications, mainly in liver tissue engineering (LTE). The specific physicochemical, biological, mechanical, and biodegradation properties give the effective ways to blend these biopolymers with synthetic and natural polymers to fabricate scaffolds matrixes, sponges, and complexes. A variety of natural and synthetic biomaterials, including chitosan (CS), alginate (Alg), collagen (CN), gelatin (GL), hyaluronic acid (HA), hydroxyapatite (HAp), polyethylene glycol (PEG), polycaprolactone (PCL), poly(lactic-co-glycolic) acid (PGLA), polylactic acid (PLA), and silk fibroin gained considerable attention due to their structure-properties relationship. The incorporation of CS within the polymer matrix results in increased mechanical strength and also imparts biological behavior to the designed PU formulations. The significant and growing interest in the LTE sector, this review aims to be a detailed exploration of CS-based polymers biomaterials for LTE. A brief explanation of the sources and extraction, properties, structure, and scope of CS is described in the introduction. After that, a full overview of the liver, its anatomy, issues, hepatocyte transplantation, LTE, and CS LTE applications are discussed.
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Affiliation(s)
- Muhammad Zeshan
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
| | - Nyla Amjed
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Humna Ashraf
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Ariba Farooq
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Nadia Akram
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Khalid Mahmood Zia
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan.
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47
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Yu Y, Wang C, Fu Q, Wan Y, Yu A. Multi-crosslinked hydrogel built with hyaluronic acid-tyramine, thiolated glycol chitosan and copper-doped bioglass nanoparticles for expediting wound healing. Carbohydr Polym 2024; 327:121635. [PMID: 38171654 DOI: 10.1016/j.carbpol.2023.121635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 11/17/2023] [Accepted: 11/22/2023] [Indexed: 01/05/2024]
Abstract
The migration of fibroblasts and endothelial cells is a critical determinant of wound-healing outcomes for skin injuries. Here, hyaluronic acid-tyramine (HAT) and thiolated glycol chitosan (TGC) conjugates were combined with copper-doped bioglass (ACuBG) nanoparticles to build a novel type of multi-crosslinked hydrogel for stimulating the migration of cells, and thus, expediting wound healing. The optimally devised HAT/TGC/ACuBG gels had markedly improved strength and stiffness compared to the gels built from either HAT or TGC while showing sufficient elasticity, which contributes to stimulating the migration of fibroblasts. The sustainable release of silicon and copper ions from the gels was found to jointly induce the migration of human umbilical vein endothelial cells. The results based on mouse full-thickness skin defects demonstrated that they were able to fully restore the skin defects with formation of complete appendages within two weeks, suggesting their promising potency for use in expediting wound healing.
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Affiliation(s)
- Yifeng Yu
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital, Wuhan University, Wuhan, 430071, PR China
| | - Congcong Wang
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, PR China
| | - Qiaoqin Fu
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, PR China
| | - Ying Wan
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, PR China.
| | - Aixi Yu
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital, Wuhan University, Wuhan, 430071, PR China.
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Ravishankar K, Km S, Sreekumar S, Sivan S, Kiran MS, Lobo NP, Jaisankar SN, Raghavachari D. Microwave-assisted synthesis of crosslinked ureido chitosan for hemostatic applications. Int J Biol Macromol 2024; 260:129648. [PMID: 38246465 DOI: 10.1016/j.ijbiomac.2024.129648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 01/15/2024] [Accepted: 01/18/2024] [Indexed: 01/23/2024]
Abstract
In this study, we present a facile method for introducing hydrophilic ureido groups (NH2-CO-NH-) into chitosan using a microwave-assisted reaction with molten urea, with the aim of enhancing chitosan's interaction with blood components for improved hemostasis. The formation of the ureido groups through nucleophilic addition reaction between the amine groups in chitosan and in situ generated isocyanic acid was confirmed by FTIR, CP/TOSS 13C NMR, and CP/MAS 15N NMR spectroscopic techniques. However, in stark contrast to the glucans, the said modification introduced extensive crosslinking in chitosan. Spectroscopic studies identified these crosslinks as carbamate bridges (-NH-COO-), which were likely formed by the reaction between the ureido groups and hydroxyl groups of adjacent chains through an isocyanate intermediate. These carbamate bridges improved ureido chitosan's environmental stability, making it particularly resistant to changes in pH and temperature. In comparison to chitosan, the crosslinked ureido chitosan synthesized here exhibited good biocompatibility and cell adhesion, rapidly arrested the bleeding in a punctured artery with minimal hemolysis, and induced early activation and aggregation of platelets. These properties render it an invaluable material for applications in hemostasis, particularly in scenarios that necessitate stability against pH variations and degradation.
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Affiliation(s)
- Kartik Ravishankar
- Polymer Science and Technology Division, CSIR-Central Leather Research Institute (CSIR-CLRI), Adyar, Chennai 600 020, Tamil Nadu, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, Uttar Pradesh, India.
| | - Shelly Km
- Department of Chemistry, Indian Institute of Technology Madras (IIT Madras), Chennai 600 036, Tamil Nadu, India
| | - Sreelekshmi Sreekumar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, Uttar Pradesh, India; Biological Materials Laboratory, CSIR-Central Leather Research Institute (CSIR-CLRI), Adyar, Chennai 600 020, Tamil Nadu, India
| | - Sisira Sivan
- Polymer Science and Technology Division, CSIR-Central Leather Research Institute (CSIR-CLRI), Adyar, Chennai 600 020, Tamil Nadu, India
| | - Manikantan Syamala Kiran
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, Uttar Pradesh, India; Biological Materials Laboratory, CSIR-Central Leather Research Institute (CSIR-CLRI), Adyar, Chennai 600 020, Tamil Nadu, India
| | - Nitin Prakash Lobo
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, Uttar Pradesh, India; Centre for Analysis, Testing, Evaluation& Reporting Services (CATERS), CSIR-Central Leather Research Institute (CSIR-CLRI), Adyar, Chennai 600 020, Tamil Nadu, India
| | - Sellamuthu N Jaisankar
- Polymer Science and Technology Division, CSIR-Central Leather Research Institute (CSIR-CLRI), Adyar, Chennai 600 020, Tamil Nadu, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, Uttar Pradesh, India.
| | - Dhamodharan Raghavachari
- Department of Chemistry, Indian Institute of Technology Madras (IIT Madras), Chennai 600 036, Tamil Nadu, India
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Elizalde-Cárdenas A, Ribas-Aparicio RM, Rodríguez-Martínez A, Leyva-Gómez G, Ríos-Castañeda C, González-Torres M. Advances in chitosan and chitosan derivatives for biomedical applications in tissue engineering: An updated review. Int J Biol Macromol 2024; 262:129999. [PMID: 38331080 DOI: 10.1016/j.ijbiomac.2024.129999] [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: 11/13/2023] [Revised: 01/19/2024] [Accepted: 02/04/2024] [Indexed: 02/10/2024]
Abstract
In recent years, chitosan (CS) has received much attention as a functional biopolymer for various applications, especially in the biomedical field. It is a natural polysaccharide created by the chemical deacetylation of chitin (CT) that is nontoxic, biocompatible, and biodegradable. This natural polymer is difficult to process; however, chemical modification of the CS backbone allows improved use of functional derivatives. CS and its derivatives are used to prepare hydrogels, membranes, scaffolds, fibers, foams, and sponges, primarily for regenerative medicine. Tissue engineering (TE), currently one of the fastest-growing fields in the life sciences, primarily aims to restore or replace lost or damaged organs and tissues using supports that, combined with cells and biomolecules, generate new tissue. In this sense, the growing interest in the application of biomaterials based on CS and some of its derivatives is justifiable. This review aims to summarize the most important recent advances in developing biomaterials based on CS and its derivatives and to study their synthesis, characterization, and applications in the biomedical field, especially in the TE area.
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Affiliation(s)
- Alejandro Elizalde-Cárdenas
- Conahcyt & Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra", Ciudad de México 14389, Mexico; Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México 11340, Mexico
| | - Rosa María Ribas-Aparicio
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México 11340, Mexico
| | - Aurora Rodríguez-Martínez
- Conahcyt & Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra", Ciudad de México 14389, Mexico; Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México 11340, Mexico
| | - Gerardo Leyva-Gómez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - Camilo Ríos-Castañeda
- Dirección de investigación, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra", Ciudad de México 14389, Mexico
| | - Maykel González-Torres
- Conahcyt & Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra", Ciudad de México 14389, Mexico.
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50
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Kaur H, Rahi DK. Response surface methodology-based optimisation of chitin production and its antioxidant activity from Aspergillusniger. Heliyon 2024; 10:e25646. [PMID: 38404787 PMCID: PMC10884427 DOI: 10.1016/j.heliyon.2024.e25646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 12/05/2023] [Accepted: 01/31/2024] [Indexed: 02/27/2024] Open
Abstract
- In this study, we focused on isolating fungi capable of producing extracellular chitin, a critical component of fungal cell walls. Aspergillus niger was chosen as the candidate, and we aimed to optimise chitin production. Initially, one variable at a time (OVAT) method was used to enhance chitin yield under the best fermentation conditions. Subsequently, the Plackett-Burman design was employed to identify the key medium components influencing chitin production. These factors were then fine-tuned using the Central Composite Design, resulting in the optimal concentrations of dipotassium hydrogen phosphate (0.7 mg/l), calcium chloride (0.5 mg/l), thymine hydrochloride (0.5 mg/l), and pH (4), as confirmed by ANOVA. The application of response surface methodology (RSM) led to a remarkable improvement in chitin yield, increasing it from 1.14 g/l to an impressive 4.42 g/l, a substantial 3.34-fold enhancement compared to unoptimized conditions. Additionally, we explored the antioxidant activity of the produced chitin, revealing its promising properties with a scavenging activity ranging from 32% to 55% at concentrations of 1-2 mg/ml, surpassing the control. In conclusion, our study successfully optimized chitin production from Aspergillus niger and demonstrated the remarkable antioxidant potential of the produced chitin, highlighting its significance in various applications.
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Affiliation(s)
- Harpreet Kaur
- Department of Microbiology, Panjab University, Chandigarh, 160014, India
| | - Deepak K. Rahi
- Department of Microbiology, Panjab University, Chandigarh, 160014, India
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