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Ta LP, Corrigan S, Horniblow RD. Novel pectin-carboxymethylcellulose-based double-layered mucin/chitosan microcomposites successfully protect the next-generation probiotic Akkermansia muciniphila through simulated gastrointestinal transit and alters microbial communities within colonic ex vivo bioreactors. Int J Pharm 2024:124670. [PMID: 39244071 DOI: 10.1016/j.ijpharm.2024.124670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 09/03/2024] [Accepted: 09/03/2024] [Indexed: 09/09/2024]
Abstract
The rapid acceleration of microbiome research has identified many potential Next Generation Probiotics (NGPs). Conventional formulation processing methods are non-compatible, leading to reduced viability and unconfirmed incorporation into intestinal microbial communities; consequently, demand for more bespoke formulation strategies of such NGPs is apparent. In this study, Akkermansia muciniphila (A.muciniphila) as a candidate NGP was investigated for its growth and metabolism properties, based on which a novel microcomposite-based oral formulation has been formed. Initially, a chitosan-based microcomposite is coated with mucin to establish surface culture of A.muciniphila. This was followed by 'double encapsulation' with pectin (PEC) using a novel Entrapment Deposition by Prilling method to create core-shell double-encapsulated microcapsules. The formulation of A.muciniphila was verified to require no oxygen-restriction properties, and additionally, biopolymers were selected (including carboxymethylcellulose (CMC)) that support and enhance its growth; consequently, a high viability (6 log CFU/g) of A.muciniphila microencapsulated in PEC-CMC double-encapsulates was obtained. Subsequently, the high stability of the PEC-CMC double-encapsulates was verified in simulated gastric fluid, successfully protecting and then releasing the A.muciniphila within intestinal conditions. Finally, employing a model of gastrointestinal transit and faecal-inoculated colonic bioreactors, significant alterations in microbial communities following administration and successful establishment of A.muciniphila were demonstrated.
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Affiliation(s)
- Linh P Ta
- Department of Biomedical Sciences, School of Infection, Inflammation, and Immunology, College of Medicine and Health, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Sarah Corrigan
- Department of Biomedical Sciences, School of Infection, Inflammation, and Immunology, College of Medicine and Health, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Richard D Horniblow
- Department of Biomedical Sciences, School of Infection, Inflammation, and Immunology, College of Medicine and Health, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
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2
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Chahar G, Deshmukh S, Banga HS, Kaur P. Effect of feeding chitosan and blend of essential organic acids on growth performance, haematological parameters and innate immunity in early aged male layer chicks. Trop Anim Health Prod 2024; 56:251. [PMID: 39225828 DOI: 10.1007/s11250-024-04081-0] [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: 03/12/2024] [Accepted: 07/18/2024] [Indexed: 09/04/2024]
Abstract
The use of antibiotics as conventional feed additives in poultry operations have proven useful, however resulted serious health concerns to consumer due to their bio-accumulation, besides rising problem of antimicrobial resistance in microbes, thus, an alternative to antibiotic growth promoter have called for. One of the aim of the experiment was to assess the lone and combined effects of feeding of chitosan oligosaccharide (COS) and blend of organic acids and short chain fatty acids in essential oils on growth performance, haematological parameters, relative lymphoid organ weight and innate immunity in early aged layer chick (male birds). A total of ninety, day-old chicks were randomly allotted into five groups: CO, Control group fed only poultry feed ; AGP, antibiotic growth promoter fed Avilomycin at the dose of 200 mg/kg of poultry feed; CH, chitosan oligosaccharide fed at the rate of 100 mg/kg feed; OE, blend of organic acids and short chain fatty acids in essential oils contained 1000 to 2000 mg/kg feed in a graded dose per week and CH + OE, chitosan oligosaccharide plus blend of organic acids and short chain fatty acids in essential oils at consistent rate and manner as followed for each of given feed additives when fed individually. Data on growth performance, samples for haematological parameters and innate immunity were measured and assayed on 7th, 21st and 42nd day post feeding (dpf) respectively. The results showed that compared with the control group; there is a marginal gain in body weight at 7th and 21st dpf in CH group and the corresponding CH + OE group. Feed conversion ratio in CH group was remarkably good at 7th and 21st dpf. No significant difference was observed in relative organ weights of thymus, spleen and Bursa of Fabricius in treatment groups as compared to control birds; however a significant rise in splenic weight index in OE fed birds at 42nd dpf noted. Haematological changes were inconsequential in treatment groups with an exception to enhancement of heterophil to lymphocyte ratio (H:L ratio) in CH group at 42nd dpf. Serum lysozyme activity proportionately elevated in CH + OE group on 21st and 42nd dpf when measured against control group; on the other hand no detectable augmentation of gut lysozyme activity observed. Both serum bactericidal and gut bactericidal activity boosted in combinatorial group at 42nd dpf. These results indicated that early age feeding of chitosan individually or combination with organic acids and short chain fatty acids in layer chick is beneficial, as it has the potential to enhance body weight gain to some extent and improves systemic and localized innate immunity to offer protection against infectious assaults thus may avoid early chick mortality in farms.
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Affiliation(s)
- Garima Chahar
- Department of Veterinary Pathology, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India.
| | - Sidhartha Deshmukh
- Department of Veterinary Pathology, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - H S Banga
- Department of Veterinary Pathology, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - Paviter Kaur
- Department of Veterinary Microbiology, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
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Bertrand M, Simonin S, Bach B. Applications of chitosan in the agri-food sector: A review. Carbohydr Res 2024; 543:109219. [PMID: 39047500 DOI: 10.1016/j.carres.2024.109219] [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: 05/22/2024] [Revised: 07/12/2024] [Accepted: 07/18/2024] [Indexed: 07/27/2024]
Abstract
Chitosan is a natural and renewable polysaccharide that can form biopolymers. It is derived from the deacetylation of chitin mainly from crustaceans' shells, but also from fungi and insects. Thanks to unique characteristics such as antimicrobial effects, antioxidant properties or film forming capacities, it has triggered an important amount of research in the last decade about possible applications in industrial fields. The main application field of chitosan is the food industry where it can be used for preservation purposes and shelf-life improvement for fresh food products such as fruits or meat. For beverages, it is used for clarification and fining as well as elimination of spoilage flora in beverages like fruit juices or wine. And in agriculture, it can be used as a plant protection product through different mechanisms like the elicitation of plant defences. The mechanisms of action of chitosan on microorganisms are multiple and complex but revolve mostly around the disturbance of microorganisms' membranes and cell walls resulting in the leakage of cell material. The use of chitosan is still minor but is promising in finding environmentally friendly alternatives to synthetic chemicals and plastics. Therefore, its characterization is primordial for the future of sustainable production and preservation processes.
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Affiliation(s)
- Mathilde Bertrand
- Changins, Viticulture and Enology, HES-SO University of Applied Sciences and Arts Western Switzerland, Route de Duillier 50, 1260, Nyon, Switzerland.
| | - Scott Simonin
- Changins, Viticulture and Enology, HES-SO University of Applied Sciences and Arts Western Switzerland, Route de Duillier 50, 1260, Nyon, Switzerland
| | - Benoit Bach
- Changins, Viticulture and Enology, HES-SO University of Applied Sciences and Arts Western Switzerland, Route de Duillier 50, 1260, Nyon, Switzerland
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Li J, Jin X, Jiao Z, Gao L, Dai X, Cheng L, Wang Y, Yan LT. Designing antibacterial materials through simulation and theory. J Mater Chem B 2024. [PMID: 39189825 DOI: 10.1039/d4tb01277a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/28/2024]
Abstract
Antibacterial materials have a wide range of potential applications in bio-antimicrobial, environmental antimicrobial, and food antimicrobial fields due to their intrinsic antimicrobial properties, which can circumvent the development of drug resistance in bacteria. Understanding the intricate mechanisms and intrinsic nature of diverse antibacterial materials is significant for the formulation of guidelines for the design of materials with rapid and efficacious antimicrobial action and a high degree of biomedical material safety. Herein, this review highlights the recent advances in investigating antimicrobial mechanisms of different antibacterial materials with a particular focus on tailored computer simulations and theoretical analysis. From the view of structure and function, we summarize the characteristics and mechanisms of different antibacterial materials, introduce the latest advances of new antibacterial materials, and discuss the design concept and development direction of new materials. In addition, we underscore the significance of employing simulation and theoretical methodologies to elucidate the intrinsic antimicrobial mechanisms, which is crucial for a comprehensive comprehension of the control strategies, safer biomedical applications, and the management of health and environmental concerns associated with antibacterial materials. This review could potentially stimulate further endeavors in fundamental research and facilitate the extensive utilization of computational and theoretical approaches in the design of novel functional nanomaterials.
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Affiliation(s)
- Jiaqi Li
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
| | - Xueqing Jin
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
| | - Zheng Jiao
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
| | - Lijuan Gao
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
| | - Xiaobin Dai
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
| | - Linghe Cheng
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
| | - Yuming Wang
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
| | - Li-Tang Yan
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
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Ji M, Li F, Li J, Li J, Wang X, Zhang C, Peng S, Man J. Physical, antibacterial, blood coagulation, and healing promotion evaluations of chitosan derivative-based composite films. Int J Biol Macromol 2024; 278:134714. [PMID: 39142487 DOI: 10.1016/j.ijbiomac.2024.134714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 06/30/2024] [Accepted: 08/11/2024] [Indexed: 08/16/2024]
Abstract
Chitosan is a potentially suitable material for wound dressing, but is undesirably water-insoluble. Although chitosan can be modified to produce water-soluble derivatives, the best chitosan derivative for wound dressings remains unclear. The present study introduced three water-soluble chitosan derivatives, namely, carboxymethyl chitosan, quaternized chitosan (QCS), and carboxymethyl quaternized chitosan, and explored the physical properties, biochemical properties, and wound care effectiveness of films of these derivatives. The QCS-based film exhibited higher absorption ability, mechanical properties, water-vapor permeability, electroconductivity, and antioxidant capacity than the other films. Most importantly, the cationic quaternary ammonium groups facilitated the antibacterial activity (>95 %) and blood coagulant capacity of the QCS-based film. As this film also promoted wound healing, it presented as an ideal candidate for wound dressings.
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Affiliation(s)
- Maocheng Ji
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, China
| | - Fangyi Li
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, China.
| | - Jianyong Li
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, China
| | - Jianfeng Li
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, China
| | - Xiaojie Wang
- Department of Pharmacology, School of Basic Medical Sciences, Shandong University, Jinan 250012, China.
| | - Chuanwei Zhang
- College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266071, China
| | - Sixian Peng
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, China
| | - Jia Man
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China; National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, China.
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Yang Y, Wang X, Li Y, Yang F, Liu X, Wang A. Dencichine/palygorskite nanocomposite incorporated chitosan/polyvinylpyrrolidone film for accelerating wound hemostasis. Int J Biol Macromol 2024; 275:133399. [PMID: 38945323 DOI: 10.1016/j.ijbiomac.2024.133399] [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: 05/24/2024] [Accepted: 06/22/2024] [Indexed: 07/02/2024]
Abstract
The development of efficient, safe, environmentally friendly, and user-friendly hemostatic dressings remains a great challenge for researchers. A variety of clay minerals and plant extracts have garnered considerable attention due to their outstanding hemostatic efficacy and favorable biosafety. In this study, a facile solution casting strategy was employed to prepare nanocomposite films by incorporating natural nanorod-like palygorskite (Pal) and herb-derived hemostat dencichine (DC) based on chitosan and polyvinylpyrrolidone. The dynamic blood clotting index demonstrated that the nanocomposite film with a DC addition of 1.0 wt% exhibited significantly superior hemostatic properties compared to both pure DC powder or commercial hemostatic agent Yunnan Baiyao. This improvement was primarily attributed to proper blood affinity, increased porosity, enhanced adhesion of platelets and erythrocytes, as well as the accelerated activation of coagulation factors and platelets. Under the synergistic effect of Pal and DC, the nanocomposite film displayed suitable tensile strength (20.58 MPa) and elongation at break (47.29 %), which may be due to the strong intermolecular hydrogen bonding and electrostatic interaction between Pal/DC and macropolymers. Notably, the nanocomposite film exhibited remarkable antibacterial effectiveness and desirable cytocompatibility, as well as the capability of promoting wound healing in vitro. Taken together, the nanocomposite film synergized with Pal and DC is expected to be an efficacious and suitable wound dressing.
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Affiliation(s)
- Yinfeng Yang
- Key Laboratory of Clay Minerals of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China; The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou 730030, PR China
| | - Xiaomei Wang
- Key Laboratory of Clay Minerals of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China
| | - Yalong Li
- Key Laboratory of Clay Minerals of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China; The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou 730030, PR China
| | - Fangfang Yang
- Key Laboratory of Clay Minerals of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China
| | - Xinyue Liu
- The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou 730030, PR China.
| | - Aiqin Wang
- Key Laboratory of Clay Minerals of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China.
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7
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Másson M. The quantitative molecular weight-antimicrobial activity relationship for chitosan polymers, oligomers, and derivatives. Carbohydr Polym 2024; 337:122159. [PMID: 38710574 DOI: 10.1016/j.carbpol.2024.122159] [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: 02/24/2024] [Revised: 04/10/2024] [Accepted: 04/11/2024] [Indexed: 05/08/2024]
Abstract
Chitosan and chitosan derivatives can kill pathogenic microorganisms including bacteria and fungi. The antimicrobial activity is dependent on the degree of acetylation, substituent structure, and molecular weight. Over the past four decades, numerous studies have endeavored to elucidate the relationship between molecular weight and the activity against microorganisms. However, investigators have reported divergent and, at times, conflicting conclusions. Here a bilinear equation is proposed, delineating the relationship between antimicrobial activity, defined as log (1/MIC), and the molecular weight of chitosan and chitosan derivatives. Three constants AMin, AMax, and CMW govern the shape of the curve determined by the equation. The constant AMin denotes the minimal activity expected as the molecular weight tends towards zero while AMax represents the maximal activity observed for molecular weights exceeding CMW, the critical molecular weight required for max activity. This equation was applied to analyze data from seven studies conducted between 1984 and 2019, which reported MIC (Minimum Inhibitory Concentration) values against bacteria and fungi for various molecular weights of chitosan and its derivatives. All the 29 datasets exhibited a good fit (R2 ≥ 0.5) and half excellent (R2 ≥ 0.95) fit to the equation. The CMW generally ranged from 4 to 10 KD for datasets with an excellent fit to the equation.
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Affiliation(s)
- Már Másson
- Faculty of Pharmaceutical Sciences, School of Health Sciences, University of Iceland, Hagi, Hofsvallgata 53, 107 Reykajvík, Iceland.
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Slivnik M, Navodnik Preložnik M, Fir M, Jazbar J, Čebron Lipovec N, Locatelli I, Liette Lauzon H, Urbančič Rovan V. A randomized, placebo-controlled study of chitosan gel for the treatment of chronic diabetic foot ulcers (the CHITOWOUND study). BMJ Open Diabetes Res Care 2024; 12:e004195. [PMID: 38909998 PMCID: PMC11328628 DOI: 10.1136/bmjdrc-2024-004195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 06/07/2024] [Indexed: 06/25/2024] Open
Abstract
INTRODUCTION To assess the efficacy of a chitosan-based gel (ChitoCare) for the treatment of non-healing diabetic foot ulcers (DFUs). RESEARCH DESIGN AND METHODS Forty-two patients with chronic DFUs were randomized to the ChitoCare or placebo gel for a 10-week treatment period and 4-week follow-up. The primary study end point was the rate of complete wound closure at week 10, presented as relative rate. RESULTS Thirty patients completed the 10-week treatment and 28 completed the 4-week follow-up. The ChitoCare arm achieved 16.7% complete wound closure at week 10 vs 4.2% in the placebo arm (p=0.297), 92.0% vs 37.0% median relative reduction in wound surface area from baseline at week 10 (p=0.008), and 4.62-fold higher likelihood of achieving 75% wound closure at week 10 (p=0.012). Based on the results of the Bates-Jensen Wound Assessment Tool, the wound state at week 10 and the relative improvement from the baseline were significantly better (median 20 vs 24 points, p=0.018, and median 29.8% vs 3.6%, p=0.010, respectively). CONCLUSIONS ChitoCare gel increased the rate of the DFU healing process. Several secondary end points significantly favored ChitoCare gel. TRIAL REGISTRATION NUMBER NCT04178525.
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Affiliation(s)
- Matevž Slivnik
- Vizera d.o.o, Ljubljana, Slovenia
- University of Ljubljana Faculty of Pharmacy, Ljubljana, Slovenia
| | | | | | - Janja Jazbar
- University of Ljubljana Faculty of Pharmacy, Ljubljana, Slovenia
| | | | - Igor Locatelli
- University of Ljubljana Faculty of Pharmacy, Ljubljana, Slovenia
| | | | - Vilma Urbančič Rovan
- University Medical Centre Ljubljana, Ljubljana, Slovenia
- University of Ljubljana Faculty of Medicine, Ljubljana, Slovenia
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Xu Y, Hao Y, Arif M, Xing X, Deng X, Wang D, Meng Y, Wang S, Hasanin MS, Wang W, Zhou Q. Poly(Lysine)-Derived Carbon Quantum Dots Conquer Enterococcus faecalis Biofilm-Induced Persistent Endodontic Infections. Int J Nanomedicine 2024; 19:5879-5893. [PMID: 38895145 PMCID: PMC11184170 DOI: 10.2147/ijn.s453385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 05/18/2024] [Indexed: 06/21/2024] Open
Abstract
Introduction Persistent endodontic infections (PEIs) mediated by bacterial biofilm mainly cause persistent periapical inflammation, resulting in recurrent periapical abscesses and progressive bone destruction. However, conventional root canal disinfectants are highly damaging to the tooth and periodontal tissue and ineffective in treating persistent root canal infections. Antimicrobial materials that are biocompatible with apical tissues and can eliminate PEIs-associated bacteria are urgently needed. Methods Here, ε-poly (L-lysine) derived carbon quantum dots (PL-CQDs) are fabricated using pyrolysis to remove PEIs-associated bacterial biofilms. Results Due to their ultra-small size, high positive charge, and active reactive oxygen species (ROS) generation capacity, PL-CQDs exhibit highly effective antibacterial activity against Enterococcus faecalis (E. faecalis), which is greatly dependent on PL-CQDs concentrations. 100 µg/mL PL-CQDs could kill E. faecalis in 5 min. Importantly, PL-CQDs effectively achieved a reduction of biofilms in the isolated teeth model, disrupting the dense structure of biofilms. PL-CQDs have acceptable cytocompatibility and hemocompatibility in vitro and good biosafety in vivo. Discussion Thus, PL-CQDs provide a new strategy for treating E. faecalis-associated PEIs.
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Affiliation(s)
- Yongzhi Xu
- School of Stomatology, Qingdao University, Qingdao, People’s Republic of China
- Department of Stomatology, Qingdao Stomatological Hospital Affiliated to Qingdao University, Qingdao, People’s Republic of China
| | - Yuanping Hao
- Department of Stomatology, Qingdao Stomatological Hospital Affiliated to Qingdao University, Qingdao, People’s Republic of China
| | - Muhammad Arif
- Qingdao Key Laboratory of Materials for Tissue Repair and Rehabilitation, School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, People’s Republic of China
| | - Xiaodong Xing
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, People’s Republic of China
| | - Xuyang Deng
- School of Stomatology, Qingdao University, Qingdao, People’s Republic of China
| | - Danyang Wang
- School of Stomatology, Qingdao University, Qingdao, People’s Republic of China
| | - Yang Meng
- Department of Stomatology, Qingdao Stomatological Hospital Affiliated to Qingdao University, Qingdao, People’s Republic of China
| | - Shuai Wang
- School of Stomatology, Qingdao University, Qingdao, People’s Republic of China
| | | | - Wanchun Wang
- Department of Stomatology, Qingdao Stomatological Hospital Affiliated to Qingdao University, Qingdao, People’s Republic of China
| | - Qihui Zhou
- Qingdao Key Laboratory of Materials for Tissue Repair and Rehabilitation, School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, People’s Republic of China
- Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing, Wuhan Textile University, Wuhan, People’s Republic of China
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10
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Elmaaty TA, Mousa AA, Farouk R, Elsisi H, Sorour H, Youssef YA, Abbas D. Organoclay-assisted disperse dyeing of polypropylene nanocomposite fabrics in supercritical carbon dioxide. Sci Rep 2024; 14:13570. [PMID: 38866819 PMCID: PMC11169538 DOI: 10.1038/s41598-024-63192-8] [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: 03/07/2024] [Accepted: 05/27/2024] [Indexed: 06/14/2024] Open
Abstract
Dyeing using supercritical carbon dioxide (SC-CO2) is carried out on the polypropylene (PP) nanocomposite fabrics with model disperse dye compared with their regular fabric at various dyeing temperatures and pressures. The results are compared with those obtained in aqueous dyeing method. The PP nanocompsite fabrics dyed in SC-CO2 medium exhibited higher colour strength (K/S) values compared with their PP regular fabric. The PP nanocompsite fabrics and their regular fabric dyed in SC-CO2 medium have higher K/S values than those dyed in aqueous medium. The color coordinates of all PP fabrics dyed in SC-CO2 and aqueous medium were positive with respect to a* and b* coordinates depending on the disperse red dye uptake. The PP nanocomposite fabrics dyed in SC-CO2 and aqueous medium exhibited higher antibacterial properties than their regular fabrics. All PP fabrics dyed in SC-CO2 and aqueous medium present very good washing, perspiration and light fastness.
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Affiliation(s)
- Tarek A Elmaaty
- Department of Textile Printing, Dyeing and Finishing, Faculty of Applied Arts, Damietta University, Damietta, 34512, Egypt
| | - Abdalla A Mousa
- Dyeing, Printing and Textile Auxiliaries Department, National Research Centre, Textile Research and Technology Institute, 33 EL Buhouth St., Dokki, Giza, 12622, Egypt.
| | - Reham Farouk
- Dyeing, Printing and Textile Auxiliaries Department, National Research Centre, Textile Research and Technology Institute, 33 EL Buhouth St., Dokki, Giza, 12622, Egypt
| | - Hanan Elsisi
- Department of Textile Printing, Dyeing and Finishing, Faculty of Applied Arts, Damietta University, Damietta, 34512, Egypt
| | - Heba Sorour
- Department of Textile Printing, Dyeing and Finishing, Faculty of Applied Arts, Damietta University, Damietta, 34512, Egypt
| | - Yehya A Youssef
- Dyeing, Printing and Textile Auxiliaries Department, National Research Centre, Textile Research and Technology Institute, 33 EL Buhouth St., Dokki, Giza, 12622, Egypt
| | - Dina Abbas
- Dyeing, Printing and Textile Auxiliaries Department, National Research Centre, Textile Research and Technology Institute, 33 EL Buhouth St., Dokki, Giza, 12622, Egypt
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11
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Bhatt S, Pathak R, Punetha VD, Punetha M. Chitosan nanocomposites as a nano-bio tool in phytopathogen control. Carbohydr Polym 2024; 331:121858. [PMID: 38388036 DOI: 10.1016/j.carbpol.2024.121858] [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: 10/11/2023] [Revised: 01/06/2024] [Accepted: 01/21/2024] [Indexed: 02/24/2024]
Abstract
Chitosan, an economically viable and versatile biopolymer, exhibits a wide array of advantageous physicochemical and biological properties. Chitosan nanocomposites, formed by the amalgamation of chitosan or chitosan nanoparticles with other nanoparticles or materials, have garnered extensive attention across agricultural, pharmaceutical, and biomedical domains. These nanocomposites have been rigorously investigated due to their diverse applications, notably in combatting plant pathogens. Their remarkable efficacy against phytopathogens has positioned them as a promising alternative to conventional chemical-based methods in phytopathogen control, thus exploring interest in sustainable agricultural practices with reduced reliance on chemical interventions. This review aims to highlight the anti-phytopathogenic activity of chitosan nanocomposites, emphasizing their potential in mitigating plant diseases. Additionally, it explores various synthesis methods for chitosan nanoparticles to enhance readers' understanding. Furthermore, the analysis delves into elucidating the intricate mechanisms governing the antimicrobial effectiveness of these composites against bacterial and fungal phytopathogens.
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Affiliation(s)
- Shalini Bhatt
- 2D Materials and LASER Actuation Laboratory, Centre of Excellence for Research, PP Savani University, Surat 394125, Gujarat, India.
| | - Rakshit Pathak
- 2D Materials and LASER Actuation Laboratory, Centre of Excellence for Research, PP Savani University, Surat 394125, Gujarat, India
| | - Vinay Deep Punetha
- 2D Materials and LASER Actuation Laboratory, Centre of Excellence for Research, PP Savani University, Surat 394125, Gujarat, India
| | - Mayank Punetha
- 2D Materials and LASER Actuation Laboratory, Centre of Excellence for Research, PP Savani University, Surat 394125, Gujarat, India
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12
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Yadav VS, Makker K, Haidrus R, Dawar A, Gumber B. Chitosan-based dressing for management of palatal donor site: A randomized clinical trial. J Periodontal Res 2024. [PMID: 38594813 DOI: 10.1111/jre.13267] [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: 02/08/2024] [Revised: 03/29/2024] [Accepted: 03/31/2024] [Indexed: 04/11/2024]
Abstract
AIMS This study aimed to evaluate the effectiveness of a chitosan-based dressing (CD) in achieving early wound healing and hemostasis at palatal donor sites in patients undergoing free gingival graft (FGG) surgery. METHODS Thirty-two patients requiring FGG were treated in this randomized controlled clinical trial. Complete epithelialization (CE) and color match (CM) at donor sites were assessed by a blinded examiner on postoperative days 7, 14, 21, and 28. Donor sites were compressed for 2 min with wet gauze (WG) alone in control group (CG) or WG + CD in test group (TG) immediately after graft harvesting, and immediate bleeding (IB) was recorded (yes/no). Delayed bleeding (DB) (for 1 week), and number of analgesic tablets consumed, and VAS scores for pain (for 2 weeks) were recorded by patient every day. RESULTS Twenty-eight patients (14 in each group) were included in final analysis. The prevalence of CE (at weeks 2 and 3) and VAS scores for CM scores were higher in TG but the intergroup differences were statistically significant only for CM (at week 4). Number of patients exhibiting IB and DB was significantly fewer in the TG (p < .05). Although average pain scores and analgesic consumption were higher in TG up to 5 days, differences between two groups were not statistically significant at any time point. CONCLUSION Our data suggests that the application of CD increased re-epithelialization and accelerated wound healing process, although it did not reach statistical significance. Moreover, CD was found to significantly reduce bleeding complications, but it did not decrease the pain levels.
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Affiliation(s)
- Vikender Singh Yadav
- Division of Periodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Kanika Makker
- Division of Periodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Razia Haidrus
- Division of Periodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Anika Dawar
- Division of Periodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Bhumika Gumber
- Herman Ostrow School of Dentistry, University of Southern California - USC, Los Angeles, California, USA
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13
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Geng H, Chen M, Guo C, Wang W, Chen D. Marine polysaccharides: Biological activities and applications in drug delivery systems. Carbohydr Res 2024; 538:109071. [PMID: 38471432 DOI: 10.1016/j.carres.2024.109071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/23/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024]
Abstract
The ocean is the common home of a large number of marine organisms, including plants, animals, and microorganisms. Researchers can extract thousands of important bioactive components from the oceans and use them extensively to treat and prevent diseases. In contrast, marine polysaccharide macromolecules such as alginate, carrageenan, Laminarin, fucoidan, chitosan, and hyaluronic acid have excellent physicochemical properties, good biocompatibility, and high bioactivity, which ensures their wide applications and strong therapeutic potentials in drug delivery. Drug delivery systems (DDS) based on marine polysaccharides and modified marine polysaccharide molecules have emerged as an innovative technology for controlling drug distribution on temporal, spatial, and dosage scales. They can detect and respond to external stimuli such as pH, temperature, and electric fields. These properties have led to their wide application in the design of novel drug delivery systems such as hydrogels, polymeric micelles, liposomes, microneedles, microspheres, etc. In addition, marine polysaccharide-based DDS not only have smart response properties but also can combine with the unique biological properties of the marine polysaccharide base to exert synergistic therapeutic effects. The biological activities of marine polysaccharides and the design of marine polysaccharide-based DDS are reviewed. Marine polysaccharide-based responsive DDS are expected to provide new strategies and solutions for disease treatment.
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Affiliation(s)
- Hongxu Geng
- Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs, School of Pharmacy, Yantai University, Yantai, 264005, PR China.
| | - Meijun Chen
- Yantai Muping District Hospital of Traditional Chinese Medicine, No.505, Government Street, Muping District, Yantai, 264110, PR China.
| | - Chunjing Guo
- College of Marine Life Science, Ocean University of China, 5# Yushan 10 Road, Qingdao, 266003, PR China.
| | - Wenxin Wang
- Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs, School of Pharmacy, Yantai University, Yantai, 264005, PR China.
| | - Daquan Chen
- Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs, School of Pharmacy, Yantai University, Yantai, 264005, PR China.
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14
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Wang TC, Jia MH, Xu NT, Hu W, Jiang Z, Zhao B, Ni YP, Shao ZB. Facile fabrication of adenosine triphosphate/chitosan/polyethyleneimine coating for high flame-retardant lyocell fabrics with outstanding antibacteria. Int J Biol Macromol 2024; 260:129599. [PMID: 38246455 DOI: 10.1016/j.ijbiomac.2024.129599] [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: 11/22/2023] [Revised: 01/09/2024] [Accepted: 01/17/2024] [Indexed: 01/23/2024]
Abstract
Addressing highly flammable and easily breeding bacteria property via environmentally friendly approach was critical for the large-scale application of lyocell fibers. Herein, a bio-based coating constructed by layer-by-layer deposition of adenosine triphosphate (ATP), chitosan (CS), and polyethyleneimine (PEI) was successfully fabricated to obtain excellent fire-resistant and antimicrobial lyocell fabrics (LBL/Lyocell). The resulted fabrics with add-on of 11.5 wt% achieved the limiting oxygen index (LOI) of 32.0 %. Meanwhile, compared with the pure lyocell fabrics, the peak of heat release rate (PHRR), total heat release (THR), and fire growth rate (FIGRA) of LBL/Lyocell fabrics decreased by 75.2 %, 61.0 % and 69.8 % in cone calorimetric test (CCT), respectively. By characterizing the gaseous products and solid residues, the presence of the ATP/CS/PEI coating could not only quickly form the dense expanded carbon layer by itself, but also promote the conversion of cellulose into thermal-stability residues, thus reducing the release of combustible substances during combustion and protecting the lyocell fabrics. In addition, LBL/Lyocell showed excellent antimicrobial properties with 99.99 % antibacterial rates against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). This bio-based coating was a promising candidate for efficiently flame-retardant cellulose fibers with excellent antibacteria.
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Affiliation(s)
- Tian-Ci Wang
- Institute of Functional Textiles and Advanced Materials, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), Qingdao Key Laboratory of Flame-Retardant Textile Materials, College of Textiles and Clothing, Qingdao University, Ningxia Road, 308, Qingdao 266071, China
| | - Meng-Han Jia
- Institute of Functional Textiles and Advanced Materials, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), Qingdao Key Laboratory of Flame-Retardant Textile Materials, College of Textiles and Clothing, Qingdao University, Ningxia Road, 308, Qingdao 266071, China
| | - Nuo-Tong Xu
- Institute of Functional Textiles and Advanced Materials, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), Qingdao Key Laboratory of Flame-Retardant Textile Materials, College of Textiles and Clothing, Qingdao University, Ningxia Road, 308, Qingdao 266071, China
| | - Wei Hu
- College of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Zhiming Jiang
- Institute of Functional Textiles and Advanced Materials, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), Qingdao Key Laboratory of Flame-Retardant Textile Materials, College of Textiles and Clothing, Qingdao University, Ningxia Road, 308, Qingdao 266071, China
| | - Bin Zhao
- Institute of Functional Textiles and Advanced Materials, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), Qingdao Key Laboratory of Flame-Retardant Textile Materials, College of Textiles and Clothing, Qingdao University, Ningxia Road, 308, Qingdao 266071, China
| | - Yan-Peng Ni
- Institute of Functional Textiles and Advanced Materials, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), Qingdao Key Laboratory of Flame-Retardant Textile Materials, College of Textiles and Clothing, Qingdao University, Ningxia Road, 308, Qingdao 266071, China.
| | - Zhu-Bao Shao
- Institute of Functional Textiles and Advanced Materials, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), Qingdao Key Laboratory of Flame-Retardant Textile Materials, College of Textiles and Clothing, Qingdao University, Ningxia Road, 308, Qingdao 266071, China.
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15
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Liu Y, Xia X, Li X, Wang F, Huang Y, Zhu B, Feng X, Wang Y. Design and characterization of edible chitooligosaccharide/fish skin gelatin nanofiber-based hydrogel with antibacterial and antioxidant characteristics. Int J Biol Macromol 2024; 262:130033. [PMID: 38342261 DOI: 10.1016/j.ijbiomac.2024.130033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 02/04/2024] [Accepted: 02/05/2024] [Indexed: 02/13/2024]
Abstract
Antibacterial and active packaging materials have gained significant research attention in response to the growing interest in food packaging. In this investigation, we developed hydrogel packaging materials with antibacterial and antioxidant properties by incorporating chitooligosaccharide (COS) and fish skin gelatin (FSG) nanofiber membranes, which readily absorbed water and exhibited swelling characteristics. The nanofiber membranes were fabricated by electrospinning technology, embedding COS within FSG, and subsequently crosslinked through the Maillard reaction facilitated by the addition of glucose. The behavior of conductivity, viscosity, and surface tension in the spinning solutions was analyzed to understand their variation patterns. Scanning electron microscopy (SEM) results revealed that the crosslinked COS/FSG nanofiber membranes possessed a uniform yet disordered fiber structure, with the diameter of the nanofibers increasing as the COS content increased. Remarkably, when the COS content reached 25 %, the COS/FSG nanofiber membranes (CF-C-25) exhibited a suitable fiber diameter of 437.16 ± 63.20 nm. Furthermore, the thermal crosslinking process involving glucose supplementation enhanced the hydrophobicity of CF-C-25. Upon hydration, the CF-H-25 hydrogel displayed a distinctive porous structure, exhibiting a remarkable swelling rate of 954 %. Notably, the inclusion of COS significantly augmented the antibacterial and antioxidant properties of the hydrogel-based nanofiber membranes. CF-H-25 demonstrated an impressive growth inhibition of 90.56 ± 5.91 % against E. coli, coupled with excellent antioxidant capabilities. In continuation, we performed a comprehensive analysis of the total colony count, pH, TVB-N, and TBA of crucian carp. The CF-H-25 hydrogel proved highly effective in extending the shelf life of crucian carp by 2-4 days, suggesting its potential application as an edible membrane for aquatic product packaging.
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Affiliation(s)
- Yanjing Liu
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian, Liaoning 116034 China
| | - Xiaodong Xia
- State Key Laboratory of Marine Food Processing and Safety Control, National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning 116034 China
| | - Xiyue Li
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian, Liaoning 116034 China
| | - Fuming Wang
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian, Liaoning 116034 China
| | - Yaping Huang
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian, Liaoning 116034 China
| | - Botian Zhu
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian, Liaoning 116034 China
| | - Xuyang Feng
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian, Liaoning 116034 China
| | - Ying Wang
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian, Liaoning 116034 China.
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16
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Chen S, Li D, Wen Y, Peng G, Ye K, Huang Y, Long S, Li X. Polyelectrolyte Complex Hydrogels from Controlled Kneading and Annealing-Induced Tightly Wound and Highly Entangled Natural Polysaccharides. Adv Healthc Mater 2024; 13:e2302973. [PMID: 38011349 DOI: 10.1002/adhm.202302973] [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: 09/05/2023] [Revised: 11/08/2023] [Indexed: 11/29/2023]
Abstract
Hydrogels usually are fabricated by using monomers or preexisting polymers in precursor solutions. Here, a polyelectrolyte complex biohydrogel (Bio-PEC hydrogel) made from a precursor dough, by kneading, annealing, and crosslinking the dough of two oppositely charged polysaccharides, cationic chitosan quaternary ammonium salt (HACC) and anionic sodium hyaluronate (HA), photoinitiator (α-ketoglutaric acid), crosslinker glycidyl methacrylate (GMA), and water of very small quantity is reported. Controlled kneading and annealing homogenized the dough with respect to transforming randomly distributed, individual polymer chains into tightly wound double-stranded structures, which, upon UV irradiation, covalently sparsely crosslinked into a highly entangled network and subsequently, upon fully swollen in water, results in Bio-PEC hydrogel, HACC/HA, exhibiting near-perfect elasticity, high tensile strength, and high swelling resistance. Via the same kneading and annealing, tetracarboxyphenylporphyrin iron (Fe-TCPP) metal nanoclusters are incorporated into HACC/HA to obtain photocatalytic, antibacterial, and biocompatible Bio-PEC hydrogel composite, Fe-TCPP@HACC/HA. Using SD rat models, the efficacy of Fe-TCPP@HACC/HA in inhibiting Escherichia coli (E. coli) growth in vitro and the ability to promote wound healing and scar-free skin regeneration in vivo, or its high potential as a wound dressing material for biomedical applications are demonstrated.
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Affiliation(s)
- Shunlan Chen
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, 430068, China
| | - Dapeng Li
- Bioengineering Department, College of Engineering, University of Massachusetts Dartmouth, North Dartmouth, Bristol County, MA, 02747-2300, USA
| | - Ying Wen
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Gege Peng
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, 430068, China
| | - Kexin Ye
- Department of Chemistry, University College London, 20 Gordon St, London, WC1H 0AJ, UK
| | - Yiwan Huang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, 430068, China
- New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan, 430068, China
| | - Shijun Long
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, 430068, China
- New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan, 430068, China
| | - Xuefeng Li
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, 430068, China
- New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan, 430068, China
- Hubei Longzhong Laboratory, Xiangyang, 441000, China
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17
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Graziani G, Ghezzi D, Nudelman F, Sassoni E, Laidlaw F, Cappelletti M, Boi M, Borciani G, Milita S, Bianchi M, Baldini N, Falini G. A natural biogenic fluorapatite as a new biomaterial for orthopedics and dentistry: antibacterial activity of lingula seashell and its use for nanostructured biomimetic coatings. J Mater Chem B 2024; 12:2083-2098. [PMID: 38284627 DOI: 10.1039/d3tb02454g] [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: 01/30/2024]
Abstract
Calcium phosphates are widely studied in orthopedics and dentistry, to obtain biomimetic and antibacterial implants. However, the multi-substituted composition of mineralized tissues is not fully reproducible from synthetic procedures. Here, for the first time, we investigate the possible use of a natural, fluorapatite-based material, i.e., Lingula anatina seashell, resembling the composition of bone and enamel, as a biomaterial source for orthopedics and dentistry. Indeed, thanks to its unique mineralization process and conditions, L. anatina seashell is among the few natural apatite-based shells, and naturally contains ions having possible antibacterial efficacy, i.e., fluorine and zinc. After characterization, we explore its deposition by ionized jet deposition (IJD), to obtain nanostructured coatings for implantable devices. For the first time, we demonstrate that L. anatina seashells have strong antibacterial properties. Indeed, they significantly inhibit planktonic growth and cell adhesion of both Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli. The two strains show different susceptibility to the mineral and organic parts of the seashells, the first being more susceptible to zinc and fluorine in the mineral part, and the second to the organic (chitin-based) component. Upon deposition by IJD, all films exhibit a nanostructured morphology and sub-micrometric thickness. The multi-doped, complex composition of the target is maintained in the coating, demonstrating the feasibility of deposition of coatings starting from biogenic precursors (seashells). In conclusion, Lingula seashell-based coatings are non-cytotoxic with strong antimicrobial capability, especially against Gram-positive strains, consistently with their higher susceptibility to fluorine and zinc. Importantly, these properties are improved compared to synthetic fluorapatite, showing that the films are promising for antimicrobial applications.
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Affiliation(s)
- Gabriela Graziani
- Biomedical Science, Technologies, and Nanobiotecnology Lab, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy. gabriela.graziani(at)polimi.it
| | - Daniele Ghezzi
- Biomedical Science, Technologies, and Nanobiotecnology Lab, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy. gabriela.graziani(at)polimi.it
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Fabio Nudelman
- EaStCHEM School of Chemistry, The University of Edinburgh, Edinburgh, UK
| | - Enrico Sassoni
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Bologna, Italy
| | - Fraser Laidlaw
- School of Physics and Astronomy, The University of Edinburgh, Edinburgh, UK
| | - Martina Cappelletti
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Marco Boi
- Biomedical Science, Technologies, and Nanobiotecnology Lab, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy. gabriela.graziani(at)polimi.it
| | - Giorgia Borciani
- Biomedical Science, Technologies, and Nanobiotecnology Lab, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy. gabriela.graziani(at)polimi.it
| | - Silvia Milita
- CNR-Institute for Microelectronic and Microsystems, Bologna, Italy
| | - Michele Bianchi
- Department of Life Sciences, Università di Modena e Reggio Emilia, Modena, Italy
| | - Nicola Baldini
- Biomedical Science, Technologies, and Nanobiotecnology Lab, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy. gabriela.graziani(at)polimi.it
- University of Bologna, Department of Biomedical and Neuromotor Sciences, Bologna, Italy
| | - Giuseppe Falini
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Bologna, Italy. giuseppe.falini(at)unibo.it
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Irani M, Abadi PG, Ahmadian-Attari MM, Rezaee A, Kordbacheh H, Goleij P. In vitro and in vivo studies of Dragon's blood plant (D. cinnabari)-loaded electrospun chitosan/PCL nanofibers: Cytotoxicity, antibacterial, and wound healing activities. Int J Biol Macromol 2024; 257:128634. [PMID: 38065451 DOI: 10.1016/j.ijbiomac.2023.128634] [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: 09/26/2023] [Revised: 12/01/2023] [Accepted: 12/03/2023] [Indexed: 01/26/2024]
Abstract
The D. cinnabari plant was loaded into the chitosan (Chn)/polycaprolactone (PCL) nanofibers in two forms: resin (D. cinnabari) and its ethyl acetate fraction. The Chn/PCL, Chn/PCL/D. cinnabari (CPD, 1, 3, and 5 %), and Chn/PCL/ethyl acetate extract D. cinnabari (CPED, 1, 3, and 5 %) showed no toxicity against human dermal fibroblast cells. The lactate dehydrogenase assay results indicated that the toxicity of pour, coated D. cinnabari, and CPED nanofibers were lower than 10 and 15 % after 1 and 3 days, respectively. The antibacterial results showed the inhibition zone for ethyl acetate extract D. cinnabari (ED-3 %), the Chn/PCL-2, and CPED3% nanofibers was 8.1, 7.4, 4.2, 5.1 mm, 12.8, 12.4, 21.7, 17.2 mm, and 24.7, 22.9, 37.1, 30.2 mm against S. aureus, B. subtilis, E. coli, and P. aeruginosa, respectively. The antibacterial activity results showed synergistic effect between the Chn/PCL and ethyl acetate extract D. cinnabari occurred. The diameter of wounds (1.50 × 1.50 cm diameter) made on the dorsal surface of rabbits reduced to 1.50 × 0.70, 0.50 × 0.30, 1.00 × 1.00, 0.60 × 0.50, 0.20 × 0.05, and 0.00 × 0.00 cm in the presence of ordinary gauze dressing, silver sulfadiazine, ED-3 %, Chn/PCL-2, CPD3%, and CPED3%nanofibers, respectively, after 14 days.
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Affiliation(s)
- Mohammad Irani
- Department of Pharmaceutics, School of Pharmacy, Alborz University of Medical Sciences, Karaj, Iran.
| | | | - Mohammad Mahdi Ahmadian-Attari
- Evidence-based Phytotherapy and Complementary Medicine Research Center, Alborz University of Medical Sciences, Karaj, Iran; Department of Pharmacognosy, Faculty of Pharmacy, Alborz University of Medical Sciences, Karaj, Iran
| | - Aryan Rezaee
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Hananeh Kordbacheh
- Eastern Mediterranean University, Faculty of Pharmacy, Famagusta, North Cyprus, Mersin 10, Turkey
| | - Pouya Goleij
- Regenerative Medicine Group (REMED), Universal Scientific Education and Research Network (USERN), Tehran, Iran
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Hussein Al-Assady NA, Badran HA, Kamil SA, Abo-Alhal RC. Preparation and evaluation in vitro release of sodium alginate/chitosan polyelectrolyte microparticles containing rifampicin and theoretical study using DFT methods. J Biomol Struct Dyn 2024; 42:1795-1811. [PMID: 37139549 DOI: 10.1080/07391102.2023.2202279] [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: 10/15/2022] [Accepted: 04/08/2023] [Indexed: 05/05/2023]
Abstract
In this work, rifampicin-loaded sodium alginate/chitosan polyelectrolyte microparticles were prepared by the ionotropic gelation technique using CaCl2 as a cross-linking agent. The influence of different sodium alginate and chitosan concentrations on particle size, surface properties, and in vitro release behavior was studied. An infrared spectroscopy investigation verified the lack of any drug-polymer interaction. The microparticles prepared using (30, 50) mg of sodium alginate were spherical while when using 75 mg of sodium alginate, vesicles with round heads and tapered tails were formed. The results showed that the microparticle diameters were between (11.872-35.3645) µm. The amount of rifampicin released and the kinetics of drug release from microparticles were studied, and the results showed that by increasing the concentration of the polymer, the release of the rifampicin from the microparticles decreased. The findings showed that rifampicin release followed zero-order kinetics and that drug release from these particles is frequently influenced by diffusion. The electronic structure and characteristics of the conjugated polymers (sodium alginate/Chitosan) were examined using density functional theory (DFT) and PM3 calculations with Gaussian 9, using the B3LYP, and electronic structure calculations using 6-311 G (d,p). The HOMO and LUMO energy levels are determined as the HOMO's maximum and the LUMO's minimum, respectively.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
| | - Hussain A Badran
- Department of Physics, College of Education for Pure Science, University of Basrah, Basrah, Iraq
| | - Sarah A Kamil
- Department of Chemistry, College of Education for Pure Science, University of Basrah, Basrah, Iraq
| | - Ryadh Ch Abo-Alhal
- Department of Physics, College of Education for Pure Science, University of Basrah, Basrah, Iraq
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20
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Silva ID, Boaro LCC, Muniz BV, Cogo-Muller K, Gonçalves F, Brandt WC. The impact of chitosan in experimental resin with different photoinitiator systems. J Mech Behav Biomed Mater 2024; 150:106323. [PMID: 38134585 DOI: 10.1016/j.jmbbm.2023.106323] [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: 10/23/2023] [Revised: 12/06/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023]
Abstract
OBJECTIVE to investigate the effect of different concentrations of chitosan added to experimental resins containing either BAPO or camphorquinone (CQ) as photoinitiators, regarding degree of conversion (DC), flexural strength (FS), flexural elastic modulus (E), Knoop microhardness (KHN), cytotoxicity, genotoxicity and antimicrobial activity. METHODS Experimental resins with polymeric matrix of BisGMA and TEGDMA was added either 0.5 wt% BAPO or 0.5 wt% camphorquinone/0.2% amine along with and chitosan concentrations of 0.5%; 1.0% or 2.0%. Degree of conversion was measured using Fourier transformed infrared spectroscopy. Flexural strength and elastic modulus were obtained through three-point bending test and Knoop microhardness was measured in a microidenter. Direct cytotoxicity was performed in human keratinocytes and genotoxicity test was done in murine macrophages cells. Antimicrobial activity was acessed against Staphylococcus aureus and Streptococcus mutans through the inhibition halo. Data were analyzed using two-way ANOVA and Tukey teste (α = 0.05). RESULTS The materials containing photoinitiator BAPO showed higher values of DC, FS, E, and KHN compared to resins with CQ. The addition of chitosan did not affect the properties of these materials. However, in resins containing CQ, the addition of chitosan improve these properties compared to control group. For the groups containing BAPO the chitosan reduced cytotoxicity and genotoxicity compared to materials with camphorquinone. The materials with 1.0% and 2.0% chitosan showed increased antibacterial activity in the materials containing BAPO as photoinitiator for both bacteria. SIGNIFICANCE The alternative photoinitiator BAPO and chitosan can improve physical and biological properties of photoactivated resins when compared with the materials with photoinitiator camphorquinone.
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Affiliation(s)
- Isaías Donizeti Silva
- Dental School, University of Santo Amaro, Rua Professor Eneas de Siqueira Neto, 340, CEP: 04829-900, São Paulo, Brazil.
| | - Letícia Cristina Cidreira Boaro
- College of Dentistry, University of Saskatchewan, Dental Clinic Building, 105, Wiggins Road, Saskatoon, SK, S7N 5E4, Canada.
| | - Bruno Vilela Muniz
- Itapeva Faculty of Social and Agrarian Sciences, Pilão dágua -Rod. Francsco Alves Negrão, Km 285, CEP 18412-000, Itapeva, São Paulo, Brazil.
| | - Karina Cogo-Muller
- Faculty of Pharmaceutical Sciences, University of Campinas, Rua Candido Portinari, 200, CEP: 13083-871, Campinas, Brazil.
| | - Flávia Gonçalves
- Dental School, University of Santo Amaro, Rua Professor Eneas de Siqueira Neto, 340, CEP: 04829-900, São Paulo, Brazil.
| | - William Cunha Brandt
- Dental School, University of Santo Amaro, Rua Professor Eneas de Siqueira Neto, 340, CEP: 04829-900, São Paulo, Brazil.
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21
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Kreling V, Falcone FH, Herrmann F, Kemper L, Amiteye D, Cord-Landwehr S, Kehrenberg C, Moerschbacher BM, Hensel A. High molecular/low acetylated chitosans reduce adhesion of Campylobacter jejuni to host cells by blocking JlpA. Appl Microbiol Biotechnol 2024; 108:171. [PMID: 38265503 PMCID: PMC10810038 DOI: 10.1007/s00253-024-13000-0] [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: 12/21/2023] [Revised: 12/21/2023] [Accepted: 12/30/2023] [Indexed: 01/25/2024]
Abstract
Infections caused by Campylobacter spp. are a major cause of severe enteritis worldwide. Multifactorial prevention strategies are necessary to reduce the prevalence of Campylobacter. In particular, antiadhesive strategies with specific inhibitors of early host-pathogen interaction are promising approaches to reduce the bacterial load. An in vitro flow cytometric adhesion assay was established to study the influence of carbohydrates on the adhesion of C. jejuni to Caco-2 cells. Chitosans with a high degree of polymerization and low degree of acetylation were identified as potent antiadhesive compounds, exerting significant reduction of C. jejuni adhesion to Caco-2 cells at non-toxic concentrations. Antiadhesive and also anti-invasive effects were verified by confocal laser scanning microscopy. For target identification, C. jejuni adhesins FlpA and JlpA were expressed in Escherichia coli ArcticExpress, and the influence of chitosan on binding to fibronectin and HSP90α, respectively, was investigated. While no effects on FlpA binding were found, a strong inhibition of JlpA-HSP90α binding was observed. To simulate real-life conditions, chicken meat was inoculated with C. jejuni, treated with antiadhesive chitosan, and the bacterial load was quantified. A strong reduction of C. jejuni load was observed. Atomic force microscopy revealed morphological changes of C. jejuni after 2 h of chitosan treatment, indicating disturbance of the cell wall and sacculi formation by electrostatic interaction of positively charged chitosan with the negatively charged cell surface. In conclusion, our data indicate promising antiadhesive and anti-invasive potential of high molecular weight, strongly de-acetylated chitosans for reducing C. jejuni load in livestock and food production. KEY POINTS: • Antiadhesive effects of chitosan with high DP/low DA against C. jejuni to host cells • Specific targeting of JlpA/Hsp90α interaction by chitosan • Meat treatment with chitosan reduces C. jejuni load.
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Affiliation(s)
- Vanessa Kreling
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Corrensstraße 48, 48149, Münster, Germany
| | - Franco H Falcone
- Institute of Parasitology, Justus Liebig University Giessen, Schubertstraße 81, 35392, Giessen, Germany
| | - Fabian Herrmann
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Corrensstraße 48, 48149, Münster, Germany
| | - Leon Kemper
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Corrensstraße 48, 48149, Münster, Germany
| | - Daniel Amiteye
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Corrensstraße 48, 48149, Münster, Germany
| | - Stefan Cord-Landwehr
- Institute of Plant Biology and Biotechnology, University of Münster, Schlossplatz 8, 48143, Münster, Germany
| | - Corinna Kehrenberg
- Institute of Veterinary Food Science, Justus Liebig University Giessen, Frankfurter Straße 92, 35392, Giessen, Germany
| | - Bruno M Moerschbacher
- Institute of Plant Biology and Biotechnology, University of Münster, Schlossplatz 8, 48143, Münster, Germany
| | - Andreas Hensel
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Corrensstraße 48, 48149, Münster, Germany.
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22
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Radha D, Lal JS, Devaky KS. Release studies of the anticancer drug 5-fluorouracil from chitosan-banana peel extract films. Int J Biol Macromol 2024; 256:128460. [PMID: 38035954 DOI: 10.1016/j.ijbiomac.2023.128460] [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: 09/14/2023] [Revised: 11/17/2023] [Accepted: 11/25/2023] [Indexed: 12/02/2023]
Abstract
5-F-lourouracil is an anticancer drug used for the treatment of different types of cancers. 5-flourouracil loaded chitosan-banana peel extract films were prepared for the in vitro drug release studies. Solvent casting technique was employed to prepare the films. The structure and morphology of the prepared films were analysed by FTIR, XRD and SEM methods and confirmed the presence of drug in the films. The drug loaded films show excellent thermal stability and good shelf life. Studies revealed that the percentage of banana peel extract influences the swelling properties of the film, thickness of the films and release of the drug from the films. Increase in the concentration of chitosan and banana peel extract decreases the swelling properties of the film and rate of release of the drug from the film. The release rate of 5-fluorouracil from the drug loaded chitosan-banana peel extract films were followed spectrophotometrically at λmax 266 nm and the film derived from 1 % chitosan solution and 1 mL aqueous banana peel extract (saturated) exhibited maximum drug release. Cytotoxicity studies proved that the films are non-toxic in nature and augurs well for their applications as excellent drug delivery systems. Antimicrobial studies show that the drug loaded chitosan-banana peel extract films were found to be active against microbes E. coli, Streptococcus mutans, Staphylococcus aureus, Candida albicans and Aspergillus niger and inactive against Pseudomonas aeruginosa.
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Affiliation(s)
- Divya Radha
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam 686560, Kerala, India
| | - Jisha S Lal
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam 686560, Kerala, India
| | - K S Devaky
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam 686560, Kerala, India.
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23
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Mirbagheri VS, Alishahi A, Ahmadian G, Petroudi SHH, Ojagh SM, Romanazzi G. Recent findings in molecular reactions of E. coli as exposed to alkylated, nano- and ordinary chitosans. Int J Biol Macromol 2023; 253:127006. [PMID: 37734522 DOI: 10.1016/j.ijbiomac.2023.127006] [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: 11/19/2022] [Revised: 09/12/2023] [Accepted: 09/18/2023] [Indexed: 09/23/2023]
Abstract
The antibacterial effects of chitosan have been widely studied, but the underlying molecular mechanisms are not fully understood. We investigated the molecular responses of Escherichia coli MG1655 cell, a model gram-negative bacterium, upon exposure to chitosan (Cs), alkylated Cs (AlkCs), and chitosan nanoparticles (CsNPs). Nine target genes involved in relevant signaling pathways (ompF, ompC, ompA, mrcA, mrcB, mgtA, glnA, kdpA, lptA) were selected for analysis. A significant reduction in the expression of mrcA, mgtA, glnA, and lptA genes was observed in the cells treated with Cs. Those treated with Cs, AlkCs, and CsNPs revealed an increase in ompF gene expression, but the expression level was lower in the cells treated with AlkCs and CsNPs compared to Cs. This increase in porin expression suggests compromised membrane integrity and disrupted nutrient transport. In addition, the changes in the expression of mgtA, kdpA, and glnA are related to different effects on membrane permeability. The higher expression in the genes mrcA and mrcB is associated with morphological changes of cells treated with AlkCs and CsNPs. These findings contribute to our understanding of the molecular mechanisms underlying chitosan-induced stress responses and provide insights for the development of safer antimicrobial compounds in the future.
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Affiliation(s)
- Vasighe Sadat Mirbagheri
- Faculty of Fisheries and Environment Science, Gorgan University of Agriculture Science and Natural Resources, Gorgan, Iran
| | - Alireza Alishahi
- Faculty of Fisheries and Environment Science, Gorgan University of Agriculture Science and Natural Resources, Gorgan, Iran.
| | - Gholamreza Ahmadian
- Department of Industrial Environmental and Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.
| | - Seyyed Hamidreza Hashemi Petroudi
- Genetics and Agricultural Biotechnology Institute of Tabarestan (GABIT), Sari Agricultural Sciences and Natural Resources University, PO Box 578, Sari, Iran
| | - Seyed Mahdi Ojagh
- Faculty of Fisheries and Environment Science, Gorgan University of Agriculture Science and Natural Resources, Gorgan, Iran
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24
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Du H, Gao F, Yang S, Zhu H, Cheng C, Peng F, Zhang W, Zheng Z, Wang X, Yang Y, Hou W. Oxidized of chitosan with different molecular weights for potential antifungal and plant growth regulator applications. Int J Biol Macromol 2023; 253:126862. [PMID: 37703971 DOI: 10.1016/j.ijbiomac.2023.126862] [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: 05/23/2023] [Revised: 08/31/2023] [Accepted: 09/09/2023] [Indexed: 09/15/2023]
Abstract
The application of Chitosan (CS) in drug delivery systems, plant growth promotion, antibacterial potentiality and plant defense is significantly limited by its inability to dissolve in neutral solutions. In this work, CS with different molecular weights (Mw) has been oxidized, yielding five kinds of oxidized chitosan (OCS 1-5) with solubilities in neutral solutions. The results obtained from Fourier Transform Infrared Spectroscopy clearly showed the successful oxidation of the hydroxyl group to form aldehyde and carboxyl groups. And the CS derivatives showed the wrinkled and lamellar structures on the surface of OCS. The results of antifungal activity against Fusarium graminearum showed that the OCS dissolved in 2 % (V/V) acetic acid exhibited better performance of almost complete inhibition of mycelial growth compared with CS at the concentration of 500 μg/mL. Among the five OCS, OCS-4 exhibited the best antifungal effect and had the lowest EC50 value of 581.68 μg/mL in samples. OCS-4 displayed superior promoting effect on seed germination with a germination potential of 62.2 % at a concentration of 3 g/L and a germination rate of 74.5 %. Additionally, the other four OCS also showed excellent antifungal activity with dose-dependent manners. These results indicated that the OCS had excellent antifungal potential in agricultural production.
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Affiliation(s)
- Haoyang Du
- Hebei Key Laboratory of Active Components and Functions in Natural Products, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China; College of Chemical Engineering, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China
| | - Fengkun Gao
- Hebei Key Laboratory of Active Components and Functions in Natural Products, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China; College of Chemical Engineering, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China
| | - Shu Yang
- College of Chemical Engineering, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China
| | - Hongxia Zhu
- College of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, PR China
| | - Caihong Cheng
- Hebei Key Laboratory of Active Components and Functions in Natural Products, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China; Analysis and Testing Center, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China
| | - Fei Peng
- Hebei Key Laboratory of Active Components and Functions in Natural Products, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China; Analysis and Testing Center, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China
| | - Wenjing Zhang
- Hebei Key Laboratory of Active Components and Functions in Natural Products, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China; College of Chemical Engineering, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China
| | - Zhe Zheng
- Hebei Key Laboratory of Active Components and Functions in Natural Products, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China; College of Chemical Engineering, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China
| | - Xiuping Wang
- Analysis and Testing Center, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China.
| | - Yuedong Yang
- Hebei Key Laboratory of Active Components and Functions in Natural Products, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China.
| | - Wenlong Hou
- Hebei Key Laboratory of Active Components and Functions in Natural Products, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China; Analysis and Testing Center, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China.
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25
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Mania S, Banach-Kopeć A, Staszczyk K, Kulesza J, Augustin E, Tylingo R. An influence of molecular weight, deacetylation degree of chitosan xerogels on their antimicrobial activity and cytotoxicity. Comparison of chitosan materials obtained using lactic acid and CO 2 saturation. Carbohydr Res 2023; 534:108973. [PMID: 37866003 DOI: 10.1016/j.carres.2023.108973] [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: 05/06/2023] [Revised: 10/03/2023] [Accepted: 10/10/2023] [Indexed: 10/24/2023]
Abstract
This paper presents a comparison of the antimicrobial activity and cytotoxicity against L929 cells of chitosan xerogels prepared by dissolving the polymer in a solution of lactic acid (LA) or carbonic acid (CO2) and then freeze-drying. There was no simple relationship between the antimicrobial activity and cytotoxicity of the samples obtained using both techniques (LA and CO2). Chitosan materials obtained by the LA method in a 1:1 dilution were characterized by the highest cytotoxicity against L929 cells (∼20%). For the same diluted samples prepared using the CO2 saturation method, the viability of L929 cells was approximately 2.5 times greater. Some of the tested chitosan materials obtained by the innovative method were characterized by significantly lower antimicrobial activity, for example, reduction of E. coli bacteria for MMW-LA and MMW-CO2 samples by 6.00 and 0.75 logarithmic order, respectively. This clearly indicates that in many applications, the presence of the acid necessary to dissolve chitosan is responsible for the antimicrobial activity of the polymer solution and its products.
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Affiliation(s)
- Szymon Mania
- Department of Chemistry, Technology and Biotechnology of Food, Faculty of Chemistry, Gdansk University of Technology, 11/12 G. Narutowicza Street, 80-233, Gdansk, Poland.
| | - Adrianna Banach-Kopeć
- Department of Chemistry, Technology and Biotechnology of Food, Faculty of Chemistry, Gdansk University of Technology, 11/12 G. Narutowicza Street, 80-233, Gdansk, Poland.
| | - Karol Staszczyk
- Department of Chemistry, Technology and Biotechnology of Food, Faculty of Chemistry, Gdansk University of Technology, 11/12 G. Narutowicza Street, 80-233, Gdansk, Poland.
| | - Jolanta Kulesza
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdansk University of Technology, 11/12 G. Narutowicza Street, 80-233, Gdansk, Poland.
| | - Ewa Augustin
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdansk University of Technology, 11/12 G. Narutowicza Street, 80-233, Gdansk, Poland.
| | - Robert Tylingo
- Department of Chemistry, Technology and Biotechnology of Food, Faculty of Chemistry, Gdansk University of Technology, 11/12 G. Narutowicza Street, 80-233, Gdansk, Poland.
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26
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Shrestha R, Thenissery A, Khupse R, Rajashekara G. Strategies for the Preparation of Chitosan Derivatives for Antimicrobial, Drug Delivery, and Agricultural Applications: A Review. Molecules 2023; 28:7659. [PMID: 38005381 PMCID: PMC10674490 DOI: 10.3390/molecules28227659] [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: 09/28/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023] Open
Abstract
Chitosan has received much attention for its role in designing and developing novel derivatives as well as its applications across a broad spectrum of biological and physiological activities, owing to its desirable characteristics such as being biodegradable, being a biopolymer, and its overall eco-friendliness. The main objective of this review is to explore the recent chemical modifications of chitosan that have been achieved through various synthetic methods. These chitosan derivatives are categorized based on their synthetic pathways or the presence of common functional groups, which include alkylated, acylated, Schiff base, quaternary ammonia, guanidine, and heterocyclic rings. We have also described the recent applications of chitosan and its derivatives, along with nanomaterials, their mechanisms, and prospective challenges, especially in areas such as antimicrobial activities, targeted drug delivery for various diseases, and plant agricultural domains. The accumulation of these recent findings has the potential to offer insight not only into innovative approaches for the preparation of chitosan derivatives but also into their diverse applications. These insights may spark novel ideas for drug development or drug carriers, particularly in the antimicrobial, medicinal, and plant agricultural fields.
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Affiliation(s)
- Rajeev Shrestha
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, Wooster, OH 44691, USA;
| | - Anusree Thenissery
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, Wooster, OH 44691, USA;
| | - Rahul Khupse
- College of Pharmacy, University of Findlay, Findlay, OH 45840, USA;
| | - Gireesh Rajashekara
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, Wooster, OH 44691, USA;
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27
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Silva FALS, Chang HP, Incorvia JAC, Oliveira MJ, Sarmento B, Santos SG, Magalhães FD, Pinto AM. 2D Nanomaterials and Their Drug Conjugates for Phototherapy and Magnetic Hyperthermia Therapy of Cancer and Infections. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2306137. [PMID: 37963826 DOI: 10.1002/smll.202306137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/26/2023] [Indexed: 11/16/2023]
Abstract
Photothermal therapy (PTT) and magnetic hyperthermia therapy (MHT) using 2D nanomaterials (2DnMat) have recently emerged as promising alternative treatments for cancer and bacterial infections, both important global health challenges. The present review intends to provide not only a comprehensive overview, but also an integrative approach of the state-of-the-art knowledge on 2DnMat for PTT and MHT of cancer and infections. High surface area, high extinction coefficient in near-infra-red (NIR) region, responsiveness to external stimuli like magnetic fields, and the endless possibilities of surface functionalization, make 2DnMat ideal platforms for PTT and MHT. Most of these materials are biocompatible with mammalian cells, presenting some cytotoxicity against bacteria. However, each material must be comprehensively characterized physiochemically and biologically, since small variations can have significant biological impact. Highly efficient and selective in vitro and in vivo PTTs for the treatment of cancer and infections are reported, using a wide range of 2DnMat concentrations and incubation times. MHT is described to be more effective against bacterial infections than against cancer therapy. Despite the promising results attained, some challenges remain, such as improving 2DnMat conjugation with drugs, understanding their in vivo biodegradation, and refining the evaluation criteria to measure PTT or MHT effects.
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Affiliation(s)
- Filipa A L S Silva
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculdade de Engenharia, Universidade do Porto, Porto, 4200-180, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculdade de Engenharia, Universidade do Porto, Porto, 4200-180, Portugal
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
| | - Hui-Ping Chang
- Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX, 78712, USA
| | - Jean Anne C Incorvia
- Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX, 78712, USA
| | - Maria J Oliveira
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
| | - Bruno Sarmento
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
- IUCS - CESPU, Rua Central de Gandra 1317, Gandra, 4585-116, Portugal
| | - Susana G Santos
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
| | - Fernão D Magalhães
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculdade de Engenharia, Universidade do Porto, Porto, 4200-180, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculdade de Engenharia, Universidade do Porto, Porto, 4200-180, Portugal
| | - Artur M Pinto
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculdade de Engenharia, Universidade do Porto, Porto, 4200-180, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculdade de Engenharia, Universidade do Porto, Porto, 4200-180, Portugal
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
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28
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Peng Z, Xiong T, Huang T, Xu X, Fan P, Qiao B, Xie M. Factors affecting production and effectiveness, performance improvement and mechanisms of action of bacteriocins as food preservative. Crit Rev Food Sci Nutr 2023; 63:12294-12307. [PMID: 35866501 DOI: 10.1080/10408398.2022.2100874] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Modern society is increasingly attracted with safe, natural, and additive-free food products, that gives preference to bacteriocins produced by General Recognized as Safe bacteria as a food preservative. Bacteriocins have been reported to be effective in extending shelf life of diverse foods such as meats, dairy products, wine, juice, and fruits and vegetables, whereas commercialized bacteriocins remain only nisin, pediocin, and Micocin. It is important that commercialized preservatives undergo an easy-to-handle manufacturing while maintaining high efficacy. Limited application of bacteriocins is most often caused by the absence of legislatives for use, low production, high cost and complicated purification process, reduced efficiency in the complex food matrix and insufficiently defined mechanism of action. Accordingly, this review provides an overview of bacteriocins, in relation to production stimulation, general purification scheme, impact of food matrix on bacteriocin effectiveness, and collaborative technology to improve bacteriocin performances. It is worth to note that purification and performance improvement technology remain the two challenging tasks in promoting bacteriocins as a widely used bio-preservative. Furthermore, this review for the first time divides bacteriocin receptors into specific classes (class I, II, III) and nonspecific class, to provide a basis for an in-depth understanding of the mechanism of action.
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Affiliation(s)
- Zhen Peng
- School of Food Science and Technology, Nanchang University, Nanchang, China
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Tao Xiong
- School of Food Science and Technology, Nanchang University, Nanchang, China
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Tao Huang
- School of Food Science and Technology, Nanchang University, Nanchang, China
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Xiaoyan Xu
- School of Food Science and Technology, Nanchang University, Nanchang, China
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Pengrong Fan
- School of Food Science and Technology, Nanchang University, Nanchang, China
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Baoling Qiao
- School of Food Science and Technology, Nanchang University, Nanchang, China
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Mingyong Xie
- School of Food Science and Technology, Nanchang University, Nanchang, China
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
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29
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Verma D, Okhawilai M, Goh KL, Thakur VK, Senthilkumar N, Sharma M, Uyama H. Sustainable functionalized chitosan based nano-composites for wound dressings applications: A review. ENVIRONMENTAL RESEARCH 2023; 235:116580. [PMID: 37474094 DOI: 10.1016/j.envres.2023.116580] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 06/27/2023] [Accepted: 07/06/2023] [Indexed: 07/22/2023]
Abstract
Functionalized chitosan nanocomposites have been studied for wound dressing applications due to their excellent antibacterial and anti-fungal properties. Polysaccharides show excellent antibacterial and drug-release properties and can be utilized for wound healing. In this article, we comprise distinct approaches for chitosan functionalization, such as photosensitizers, dendrimers, graft copolymerization, quaternization, acylation, carboxyalkylation, phosphorylation, sulfation, and thiolation. The current review article has also discussed brief insights on chitosan nanoparticle processing for biomedical applications, including wound dressings. The chitosan nanoparticle preparation technologies have been discussed, focusing on wound dressings owing to their targeted and controlled drug release behavior. The future directions of chitosan research include; a) finding an effective solution for chronic wounds, which are unable to heal completely; b) providing effective wound healing solutions for diabetic wounds and venous leg ulcers; c) to better understanding the wound healing mechanism with such materials which can help provide the optimum solution for wound dressing; d) to provide an improved treatment option for wound healing.
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Affiliation(s)
- Deepak Verma
- International Graduate Program of Nanoscience and Technology, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Manunya Okhawilai
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, Thailand; Center of Excellence in Polymeric Materials for Medical Practice Devices, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.
| | - Kheng Lim Goh
- Faculty of Science, Agriculture and Engineering, Newcastle University, Newcastle Upon Tyne, NE1 7RU, UK; Newcastle University in Singapore, 567739, Singapore
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Center, SRUC, Barony Campus, Parkgate, Dumfries DG1 3NE, United Kingdom
| | - Nangan Senthilkumar
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Mohit Sharma
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, 138634, Republic of Singapore
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Osaka, 565-0871, Japan
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Bhagat D, Manzoor A, Mahajan A, Sanjeev UK, Sharma B, Krishnamoorthy P, Samuel DK, Sushil S. Nature to Nurture: Chitosan nanopowder a natural carbohydrate polymer choice of egg parasitoid, Trichogramma Japonicum Ashmead. Heliyon 2023; 9:e20724. [PMID: 37867881 PMCID: PMC10585235 DOI: 10.1016/j.heliyon.2023.e20724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 09/28/2023] [Accepted: 10/04/2023] [Indexed: 10/24/2023] Open
Abstract
Chitosan is a naturally occurring linear biopolymer made of partially deacetylated acetyl and N-acetyl glucosamine. Its biocompatible physiochemical and biochemical properties are unmatched. Chitosan is transformed to nanopowder for use in agriculture and associated industries as nanocarriers for existing agrochemicals, ensuring the delayed release of chemicals with better solubility. Chitosan nanopowder applied to leaves or soil can activate a plant's natural defences against insects and pathogens. These studies were carried out because there is a potential for toxicological risk linked with products created utilizing nanotechnology, such as chitosan nanopowder, and therefore researchers felt the need to investigate this. The egg parasitoides Trichogramma Japonicum Ashmead was used as a low-cost biomarker to determine the potential toxicity of chitosan nanopowder. This study looked into the possibility that the adult stage of the egg parasitoids, Trichogramma Japonicum Ashmead might be negatively impacted by chitosan nanopowder (80-100 nm). Unpaired t-test statistical analysis has been carried out. According to the statistical analysis, host eggs exposed to chitosan nanopowder showed noticeably greater parasitization than the control group. As a natural supply of carbohydrate polymers chitosan nanopowder promotes the parasitization of T. Japonicum. The findings showed that T. Japonicum favoured chitosan nanopowder. Through Y dual choice, eight-arm multiple choice, and no-choice olfactometer experiments, as well as images from a stereozoom microscope and a scanning electron microscope (SEM), the data was thoroughly supported. Future agricultural applications of chitosan nanopowder will benefit from a deeper understanding of our findings.
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Affiliation(s)
- Deepa Bhagat
- Indian Council of Agricultural Research - National Bureau of Agricultural Insect Resources, P.B. No. 2491, H & A Farm Post, Bellary Road, Bengaluru, 560024, Karnataka, India
| | - Aamina Manzoor
- Indian Council of Agricultural Research - National Bureau of Agricultural Insect Resources, P.B. No. 2491, H & A Farm Post, Bellary Road, Bengaluru, 560024, Karnataka, India
- Sher-e-Kashmir University of Agricultural Sciences and Technology-Jammu, Chatha, 180009, Jammu and Kashmir, India
| | - Akanksha Mahajan
- Indian Council of Agricultural Research - National Bureau of Agricultural Insect Resources, P.B. No. 2491, H & A Farm Post, Bellary Road, Bengaluru, 560024, Karnataka, India
- Sher-e-Kashmir University of Agricultural Sciences and Technology-Jammu, Chatha, 180009, Jammu and Kashmir, India
| | - Umesh Kumar Sanjeev
- Indian Council of Agricultural Research - National Bureau of Agricultural Insect Resources, P.B. No. 2491, H & A Farm Post, Bellary Road, Bengaluru, 560024, Karnataka, India
| | - B.C. Sharma
- Sher-e-Kashmir University of Agricultural Sciences and Technology-Jammu, Chatha, 180009, Jammu and Kashmir, India
| | - Paramanandham Krishnamoorthy
- ICAR-National Institute of Veterinary Epidemiology and Disease Informatics, Ramagondanahalli, P.B. No.6450, Yelahanka, 5600064, Bengaluru, Karnataka, India
| | - Duleep Kumar Samuel
- ICAR-Indian Institute of Horticultural Research, Haserghatta Lake Post, IIHR Main Road, Ivar, Kandapura, 560089, Bengaluru, Karnataka, India
| | - S.N. Sushil
- Indian Council of Agricultural Research - National Bureau of Agricultural Insect Resources, P.B. No. 2491, H & A Farm Post, Bellary Road, Bengaluru, 560024, Karnataka, India
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Chen XJ, Lei ZY, Liu P, Lei MJ, Xu H, Yu LJ, Ao MZ. An aminocaproic acid-grafted chitosan derivative with superior antibacterial and hemostatic properties for the prevention of secondary bleeding. Carbohydr Polym 2023; 316:120988. [PMID: 37321717 DOI: 10.1016/j.carbpol.2023.120988] [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: 12/15/2022] [Revised: 04/19/2023] [Accepted: 05/04/2023] [Indexed: 06/17/2023]
Abstract
Uncontrolled bleeding is one of the leading causes of human mortality. Existing hemostatic materials or techniques cannot meet the clinical requirements for safe and effective hemostasis. The development of novel hemostatic materials has always been of great interest. Chitosan hydrochloride (CSH), a derivative of chitin, is extensively used on wounds as an antibacterial and hemostatic agent. However, the formation of intra- or intermolecular hydrogen bonds between hydroxyl and amino groups limits its water solubility and dissolution rate and affects its effectiveness in promoting coagulation. Herein, we covalently grafted aminocaproic acid (AA) to the hydroxyl and amino groups of CSH via ester and amide bonds, respectively. The solubility of CSH in water (25 °C) was 11.39 ± 0.98 % (w/v), whereas the AA-grafted CSH (CSH-AA) reached 32.34 ± 1.23 % (w/v). Moreover, the dissolution rate of CSH-AA in water was 6.46 times higher than that of CSH. Subsequent studies proved that CSH-AA is non-toxic, biodegradable, and has superior antibacterial and hemostatic properties to CSH. Additionally, anti-plasmin activity can be exerted by the dissociated AA from the CSH-AA backbone, which can help to lessen secondary bleeding.
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Affiliation(s)
- Xiao-Juan Chen
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Zhi-Yong Lei
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Pan Liu
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Meng-Jie Lei
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Hang Xu
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Long-Jiang Yu
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan 430074, China; Hubei Engineering Research Center for both Edible and Medicinal Resources, Wuhan 430074, China.
| | - Ming-Zhang Ao
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan 430074, China; Hubei Engineering Research Center for both Edible and Medicinal Resources, Wuhan 430074, China.
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Rajabi M, Cabral JD, Saunderson S, Ali MA. 3D printing of chitooligosaccharide-polyethylene glycol diacrylate hydrogel inks for bone tissue regeneration. J Biomed Mater Res A 2023; 111:1468-1481. [PMID: 37066870 DOI: 10.1002/jbm.a.37548] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 03/09/2023] [Accepted: 04/03/2023] [Indexed: 04/18/2023]
Abstract
To date, lack of functional hydrogel inks has limited 3D printing applications in tissue engineering. This study developed a series of photocurable hydrogel inks based on chitooligosaccharide (COS)-polyethylene glycol diacrylate (PEGDA) for extrusion-based 3D printing of bone tissue scaffolds. The scaffolds were prepared by aza-Michael addition of COS and PEGDA followed by photopolymerisation of unreacted PEGDA. The hydrogel inks showed sufficient shear thinning properties required for extrusion 3D printing. The printed scaffolds exhibited excellent shape fidelity and fine microstructure with a resolution of 250 μm. By increasing the COS content, the swelling ratio of the scaffolds decreased, while the compressive strength increased. 3D printed COS-PEGDA scaffolds showed high viability of human bone mesenchymal stem cells in vitro. In addition, scaffolds containing 2 wt% COS showed significantly higher alkaline phosphatase activity, calcium deposition, and bioactivity in simulated body fluid compared to the control (PEGDA). Altogether, 3D printed COS-PEGDA scaffolds represent promising candidates for bone tissue regeneration.
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Affiliation(s)
- Mina Rajabi
- Faculty of Dentistry, Division of Health Sciences, Centre for Bioengineering & Nanomedicine, Sir John Walsh Research Institute, University of Otago, Dunedin, New Zealand
| | - Jaydee D Cabral
- Department of Microbiology and Immunology, University of Otago, Dunedin, New Zealand
| | - Sarah Saunderson
- Department of Microbiology and Immunology, University of Otago, Dunedin, New Zealand
| | - M Azam Ali
- Faculty of Dentistry, Division of Health Sciences, Centre for Bioengineering & Nanomedicine, Sir John Walsh Research Institute, University of Otago, Dunedin, New Zealand
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Aflakian F, Mirzavi F, Aiyelabegan HT, Soleimani A, Gholizadeh Navashenaq J, Karimi-Sani I, Rafati Zomorodi A, Vakili-Ghartavol R. Nanoparticles-based therapeutics for the management of bacterial infections: A special emphasis on FDA approved products and clinical trials. Eur J Pharm Sci 2023; 188:106515. [PMID: 37402428 DOI: 10.1016/j.ejps.2023.106515] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 06/04/2023] [Accepted: 07/01/2023] [Indexed: 07/06/2023]
Abstract
Microbial resistance has increased in recent decades as a result of the extensive and indiscriminate use of antibiotics. The World Health Organization listed antimicrobial resistance as one of ten major global public health threats in 2021. In particular, six major bacterial pathogens, including third-generation cephalosporin-resistant Escherichia coli, methicillin-resistant Staphylococcus aureus, carbapenem-resistant Acinetobacter baumannii, Klebsiella pneumoniae, Streptococcus pneumoniae, and Pseudomonas aeruginosa, were found to have the highest resistance-related death rates in 2019. To respond to this urgent call, the creation of new pharmaceutical technologies based on nanoscience and drug delivery systems appears to be the promising strategy against microbial resistance in light of recent advancements, particularly the new knowledge of medicinal biology. Nanomaterials are often defined as substances having sizes between 1 and 100 nm. If the material is used on a small scale; its properties significantly change. They come in a variety of sizes and forms to help provide distinguishing characteristics for a wide range of functions. The field of health sciences has demonstrated a strong interest in numerous nanotechnology applications. Therefore, in this review, prospective nanotechnology-based therapeutics for the management of bacterial infections with multiple medication resistance are critically examined. Recent developments in these innovative treatment techniques are described, with an emphasis on preclinical, clinical, and combinatorial approaches.
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Affiliation(s)
- Fatemeh Aflakian
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Farshad Mirzavi
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | | | - Anvar Soleimani
- Department of Medical Microbiology, College of Health Sciences, Cihan University-Sulaimaniya, Sulaimaniya, 46001, Kurdistan Region, Iraq
| | | | - Iman Karimi-Sani
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Abolfazl Rafati Zomorodi
- Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Roghayyeh Vakili-Ghartavol
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran; Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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Mukarram M, Ali J, Dadkhah-Aghdash H, Kurjak D, Kačík F, Ďurkovič J. Chitosan-induced biotic stress tolerance and crosstalk with phytohormones, antioxidants, and other signalling molecules. FRONTIERS IN PLANT SCIENCE 2023; 14:1217822. [PMID: 37538057 PMCID: PMC10394624 DOI: 10.3389/fpls.2023.1217822] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 06/30/2023] [Indexed: 08/05/2023]
Abstract
Several polysaccharides augment plant growth and productivity and galvanise defence against pathogens. Such elicitors have ecological superiority over traditional growth regulators, considering their amplified biocompatibility, biodegradability, bioactivity, non-toxicity, ubiquity, and inexpensiveness. Chitosan is a chitin-derived polysaccharide that has recently been spotlighted among plant scientists. Chitosan supports plant growth and development and protects against microbial entities such as fungi, bacteria, viruses, nematodes, and insects. In this review, we discuss the current knowledge of chitosan's antimicrobial and insecticidal potential with recent updates. These effects are further explored with the possibilities of chitosan's active correspondence with phytohormones such as jasmonic acid (JA), salicylic acid (SA), indole acetic acid (IAA), abscisic acid (ABA), and gibberellic acid (GA). The stress-induced redox shift in cellular organelles could be substantiated by the intricate participation of chitosan with reactive oxygen species (ROS) and antioxidant metabolism, including hydrogen peroxide (H2O2), superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD). Furthermore, we propose how chitosan could be intertwined with cellular signalling through Ca2+, ROS, nitric oxide (NO), transcription factors (TFs), and defensive gene activation.
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Affiliation(s)
- Mohammad Mukarram
- Department of Phytology, Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovakia
| | - Jamin Ali
- Centre for Applied Entomology and Parasitology, School of Life Sciences, Keele University, Newcastle-under-Lyme, Staffordshire, United Kingdom
| | - Hamed Dadkhah-Aghdash
- Department of Plant Biology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Daniel Kurjak
- Department of Integrated Forest and Landscape Protection, Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovakia
| | - František Kačík
- Department of Chemistry and Chemical Technologies, Faculty of Wood Sciences and Technology, Technical University in Zvolen, Zvolen, Slovakia
| | - Jaroslav Ďurkovič
- Department of Phytology, Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovakia
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Khubiev OM, Egorov AR, Lobanov NN, Fortalnova EA, Kirichuk AA, Tskhovrebov AG, Kritchenkov AS. Novel Highly Efficient Antibacterial Chitosan-Based Films. BIOTECH 2023; 12:50. [PMID: 37489484 PMCID: PMC10366851 DOI: 10.3390/biotech12030050] [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: 05/22/2023] [Revised: 06/04/2023] [Accepted: 07/03/2023] [Indexed: 07/26/2023] Open
Abstract
In this study, we elaborated new chitosan-based films reinforced by iron(III)-containing chitosan nanoparticles Fe(III)-CS-NPs at different concentrations. We found that the optimum concentration of Fe(III)-CS-NPs for the improvement of antibacterial and mechanical properties of the films was 10% (σb = ca. 8.8 N/mm2, εb = ca. 41%, inhibition zone for S. aureus = ca. 16.8 mm and for E. coli = ca. 11.2 mm). Also, using the click-chemistry approach (thiol-ene reaction), we have synthesized a novel water-soluble cationic derivative of chitin. The addition of this derivative of chitin to the chitosan polymer matrix of the elaborated film significantly improved its mechanical (σb = ca. 11.6 N/mm2, εb = ca. 75%) and antimicrobial (inhibition zone for S. aureus = ca. 19.6 mm and for E. coli = ca. 14.2 mm) properties. The key mechanism of the antibacterial action of the obtained films is the disruption of the membranes of bacterial cells. The elaborated antibacterial films are of interest for potential biomedical and food applications.
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Affiliation(s)
- Omar M Khubiev
- Faculty of Science, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya St. 6, 117198 Moscow, Russia
| | - Anton R Egorov
- Faculty of Science, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya St. 6, 117198 Moscow, Russia
| | - Nikolai N Lobanov
- Faculty of Science, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya St. 6, 117198 Moscow, Russia
| | - Elena A Fortalnova
- Faculty of Science, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya St. 6, 117198 Moscow, Russia
| | - Anatoly A Kirichuk
- Faculty of Science, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya St. 6, 117198 Moscow, Russia
| | - Alexander G Tskhovrebov
- Faculty of Science, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya St. 6, 117198 Moscow, Russia
| | - Andreii S Kritchenkov
- Faculty of Science, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya St. 6, 117198 Moscow, Russia
- Institute of Technical Acoustics NAS of Belarus, Ludnikova Prosp. 13, 210009 Vitebsk, Belarus
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Choi I, Lee BY, Kim S, Imm S, Chang Y, Han J. Comparison of chitosan and gelatin-based films and application to antimicrobial coatings enriched with grapefruit seed extract for cherry tomato preservation. Food Sci Biotechnol 2023; 32:1067-1077. [PMID: 37215250 PMCID: PMC10195967 DOI: 10.1007/s10068-023-01254-9] [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: 10/25/2022] [Revised: 12/28/2022] [Accepted: 01/05/2023] [Indexed: 01/29/2023] Open
Abstract
Bio-based single, composite, and bilayer edible films were developed based on chitosan and gelatin, including grapefruit seed extract (GSE) as an antimicrobial agent. The physicochemical and antimicrobial properties of films were analyzed, and it was found that compounding and laminating two polymers could enhance their physicochemical properties. The composite film was strong, endurable, and flexible compared with the single ones. In addition, the composite and bilayer films had lower water vapor permeability than the single ones. Edible films and coatings with GSE presented a greater bactericidal effect than the inactive ones. In addition, the hardness, weight, and color changes of the coated cherry tomatoes during 7-day storage did not differ, whereas a bacterial reduction against Salmonella Typhimurium was revealed. Taken together, composite and bilayer films with CH and GL and enriched with GSE were developed for food packaging applications, and it showed improved mechanical, water barrier, and antimicrobial properties. Supplementary Information The online version contains supplementary material available at 10.1007/s10068-023-01254-9.
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Affiliation(s)
- Inyoung Choi
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841 Republic of Korea
| | - Bo Young Lee
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841 Republic of Korea
| | - Sangbin Kim
- Department of Food and Nutrition, College of Science and Technology, Kookmin University, Seoul, 02707 Republic of Korea
| | - Seulgi Imm
- Department of Food and Nutrition, College of Science and Technology, Kookmin University, Seoul, 02707 Republic of Korea
| | - Yoonjee Chang
- Department of Food and Nutrition, College of Science and Technology, Kookmin University, Seoul, 02707 Republic of Korea
| | - Jaejoon Han
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841 Republic of Korea
- Department of Food Biosciences and Technology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841 Republic of Korea
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Sahu S, Niranjan R, Priyadarshini R, Lochab B. Benzoxazine-grafted-chitosan biopolymer films with inherent disulfide linkage: Antimicrobial properties. CHEMOSPHERE 2023; 328:138587. [PMID: 37019400 DOI: 10.1016/j.chemosphere.2023.138587] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/31/2023] [Accepted: 04/01/2023] [Indexed: 06/19/2023]
Abstract
Synthesis and fabrication of naturally sourced biopolymers, especially chitosan, grafted with renewable small molecules have recently attracted attention as efficient antimicrobial agents and are highly desired for sustainable material development. Advantageous inherent functionalities in biobased benzoxazine extend the possibility of crosslinking with chitosan which holds immense potential. Herein, a low-temperature, greener facile methodology is adopted for the covalent confinement of benzoxazine monomers bearing aldehyde and disulfide linkages within chitosan to form benzoxazine-grafted-chitosan copolymer films. The association of benzoxazine as Schiff base, hydrogen bonding, and ring-opened structures enabled the exfoliation of chitosan galleries, and such host-guest mediated interactions demonstrated outstanding properties like hydrophobicity, good thermal, and solution stability due to the synergistic effects. Furthermore, the structures empowered excellent bactericidal properties against both E. coli and S. aureus as investigated by GSH loss, live/dead fluorescence microscopy, and morphological alteration on the cell surface by SEM. The work provides the benefits of disulfide-linked benzoxazines on chitosan, offering a promising avenue for general and eco-friendly usage in wound-healing and packaging material.
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Affiliation(s)
- Sangeeta Sahu
- Materials Chemistry Laboratory, Department of Chemistry, School of Natural Sciences, Shiv Nadar Institution of Eminence, Gautam Buddha Nagar, Uttar Pradesh, 201314, India
| | - Rashmi Niranjan
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar Institution of Eminence, Gautam Buddha Nagar, Uttar Pradesh, 201314, India
| | - Richa Priyadarshini
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar Institution of Eminence, Gautam Buddha Nagar, Uttar Pradesh, 201314, India.
| | - Bimlesh Lochab
- Materials Chemistry Laboratory, Department of Chemistry, School of Natural Sciences, Shiv Nadar Institution of Eminence, Gautam Buddha Nagar, Uttar Pradesh, 201314, India.
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Garreau C, Chiappisi L, Micciulla S, Blanc N, Morfin I, Desorme A, Mignot T, Trombotto S, Delair T, Sudre G. Grafted chitosan thin films of various degrees of acetylation as a reusable platform for the investigation of biological interactions. Int J Biol Macromol 2023:125565. [PMID: 37379951 DOI: 10.1016/j.ijbiomac.2023.125565] [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: 04/12/2023] [Revised: 06/14/2023] [Accepted: 06/23/2023] [Indexed: 06/30/2023]
Abstract
Surface treatment by adhesive polymers is a promising solution to immobilize and study bacteria cells through microscopic assays and, for example, control their growth or determine their susceptibility to antibiotic treatment. The stability of such functional films in wet conditions is crucial, as the film degradation would compromise a persistent use of the coated devices. In this work, low roughness chitosan thin films of degrees of acetylation (DA) ranging from 0.5 % to 49 % were chemically grafted onto silicon and glass substrates and we have demonstrated how the physicochemical properties of the surfaces and the bacterial response were DA-dependent. A fully deacetylated chitosan film presented an anhydrous crystalline structure while the hydrated crystalline allomorph was the preferred structure at higher DA. Moreover, their hydrophilicity increased at higher DA, leading to higher film swelling. Low DA chitosan-grafted substrate favored bacterial growth away from the surface and could be envisioned as bacteriostatic surfaces. Contrarily, an optimum of Escherichia coli adhesion was found for substrates modified with chitosan of DA = 35 %: these surfaces are adapted for the study of bacterial growth and antibiotic testing, with the possibility of reusing the substrates without affecting the grafted film - ideal for limiting single-use devices.
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Affiliation(s)
- Cyrielle Garreau
- Univ Lyon, Université Claude Bernard Lyon 1 CNRS, IMP UMR 5223, F-69622 Villeurbanne, France
| | | | - Samantha Micciulla
- Institut Laue-Langevin, 71 Avenue des Martyrs, Grenoble F-38042, France; Laboratoire Interdisciplinaire de Physique, 140 Avenue de la Physique, Université Grenoble Alpes CNRS, Saint Martin d'Hères F-38402, France
| | - Nils Blanc
- Univ. Grenoble Alpes, CNRS, Grenoble INP*, Institut Néel, 38000 Grenoble, France
| | - Isabelle Morfin
- Laboratoire Interdisciplinaire de Physique, 140 Avenue de la Physique, Université Grenoble Alpes CNRS, Saint Martin d'Hères F-38402, France
| | - Amandine Desorme
- Laboratoire de Chimie Bactérienne, Institut de Microbiologie de la Méditerranée, CNRS-Aix Marseille Université (UMR7283), Marseille, France
| | - Tâm Mignot
- Laboratoire de Chimie Bactérienne, Institut de Microbiologie de la Méditerranée, CNRS-Aix Marseille Université (UMR7283), Marseille, France
| | - Stéphane Trombotto
- Univ Lyon, Université Claude Bernard Lyon 1 CNRS, IMP UMR 5223, F-69622 Villeurbanne, France
| | - Thierry Delair
- Univ Lyon, Université Claude Bernard Lyon 1 CNRS, IMP UMR 5223, F-69622 Villeurbanne, France
| | - Guillaume Sudre
- Univ Lyon, Université Claude Bernard Lyon 1 CNRS, IMP UMR 5223, F-69622 Villeurbanne, France.
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Ibrahim MA, Alhalafi MH, Emam EAM, Ibrahim H, Mosaad RM. A Review of Chitosan and Chitosan Nanofiber: Preparation, Characterization, and Its Potential Applications. Polymers (Basel) 2023; 15:2820. [PMID: 37447465 DOI: 10.3390/polym15132820] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/13/2023] [Accepted: 06/15/2023] [Indexed: 07/15/2023] Open
Abstract
Chitosan is produced by deacetylating the abundant natural chitin polymer. It has been employed in a variety of applications due to its unique solubility as well as its chemical and biological properties. In addition to being biodegradable and biocompatible, it also possesses a lot of reactive amino side groups that allow for chemical modification and the creation of a wide range of useful derivatives. The physical and chemical characteristics of chitosan, as well as how it is used in the food, environmental, and medical industries, have all been covered in a number of academic publications. Chitosan offers a wide range of possibilities in environmentally friendly textile processes because of its superior absorption and biological characteristics. Chitosan has the ability to give textile fibers and fabrics antibacterial, antiviral, anti-odor, and other biological functions. One of the most well-known and frequently used methods to create nanofibers is electrospinning. This technique is adaptable and effective for creating continuous nanofibers. In the field of biomaterials, new materials include nanofibers made of chitosan. Numerous medications, including antibiotics, chemotherapeutic agents, proteins, and analgesics for inflammatory pain, have been successfully loaded onto electro-spun nanofibers, according to recent investigations. Chitosan nanofibers have several exceptional qualities that make them ideal for use in important pharmaceutical applications, such as tissue engineering, drug delivery systems, wound dressing, and enzyme immobilization. The preparation of chitosan nanofibers, followed by a discussion of the biocompatibility and degradation of chitosan nanofibers, followed by a description of how to load the drug into the nanofibers, are the first issues highlighted by this review of chitosan nanofibers in drug delivery applications. The main uses of chitosan nanofibers in drug delivery systems will be discussed last.
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Affiliation(s)
- Marwan A Ibrahim
- Department of Biology, College of Science, Majmaah University, Al-Majmaah 11952, Saudi Arabia
- Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo 11566, Egypt
| | - Mona H Alhalafi
- Department of Chemistry, College of Science, Majmaah University, Al-Majmaah 11952, Saudi Arabia
| | - El-Amir M Emam
- Faculty of Applied Arts, Textile Printing, Dyeing and Finishing Department, Helwan University, Cairo 11795, Egypt
| | - Hassan Ibrahim
- Pretreatment and Finishing of Cellulosic Fibers Department, Textile Research and Technology Institute, National Research Centre, Cairo 12622, Egypt
| | - Rehab M Mosaad
- Department of Biology, College of Science, Majmaah University, Al-Majmaah 11952, Saudi Arabia
- Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo 11566, Egypt
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Ogunyemi SO, Abdallah Y, Ibrahim E, Zhang Y, Bi J, Wang F, Ahmed T, Alkhalifah DHM, Hozzein WN, Yan C, Li B, Xu L. Bacteriophage-mediated biosynthesis of MnO 2NPs and MgONPs and their role in the protection of plants from bacterial pathogens. Front Microbiol 2023; 14:1193206. [PMID: 37396367 PMCID: PMC10308383 DOI: 10.3389/fmicb.2023.1193206] [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: 03/24/2023] [Accepted: 05/17/2023] [Indexed: 07/04/2023] Open
Abstract
Introduction Xanthomonas oryzae pv. oryzae (Xoo) is the plant pathogen of Bacterial Leaf Blight (BLB), which causes yield loss in rice. Methods In this study, the lysate of Xoo bacteriophage X3 was used to mediate the bio-synthesis of MgO and MnO2. The physiochemical features of MgONPs and MnO2NPs were observed via Ultraviolet - Visible spectroscopy (UV-Vis), X-ray diffraction (XRD), Transmission/Scanning electron microscopy (TEM/SEM), Energy dispersive spectrum (EDS), and Fourier-transform infrared spectrum (FTIR). The impact of nanoparticles on plant growth and bacterial leaf blight disease were evaluated. Chlorophyll fluorescence was used to determine whether the nanoparticles application were toxic to the plants. Results An absorption peak of 215 and 230 nm for MgO and MnO2, respectively, confirmed nanoparticle formation via UV-Vis. The crystalline nature of the nanoparticles was detected by the analysis of XRD. Bacteriological tests indicated that MgONPs and MnO2NPs sized 12.5 and 9.8 nm, respectively, had strong in vitro antibacterial effects on rice bacterial blight pathogen, Xoo. MnO2NPs were found to have the most significant antagonist effect on nutrient agar plates, while MgONPs had the most significant impact on bacterial growth in nutrient broth and on cellular efflux. Furthermore, no toxicity to plants was observed for MgONPs and MnO2NPs, indeed, MgONPs at 200 μg/mL significantly increased the quantum efficiency of PSII photochemistry on the model plant, Arabidopsis, in light (ΦPSII) compared to other interactions. Additionally, significant suppression of BLB was noted in rice seedlings amended with the synthesized MgONPs and MnO2NPs. MnO2NPs showed promotion of plant growth in the presence of Xoo compared to MgONPs. Conclusion An effective alternative for the biological production of MgONPs and MnO2NPs was reported, which serves as an effective substitute to control plant bacterial disease with no phytotoxic effect.
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Affiliation(s)
- Solabomi Olaitan Ogunyemi
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Yasmine Abdallah
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, China
- Plant Pathology Department, Faculty of Agriculture, Minia University, Elminya, Egypt
| | - Ezzeldin Ibrahim
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Yang Zhang
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Ji’an Bi
- Institute of Biotechnology, Ningbo Academy of Agricultural Sciences, Ningbo, China
| | - Fang Wang
- Institute of Biotechnology, Ningbo Academy of Agricultural Sciences, Ningbo, China
| | - Temoor Ahmed
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Dalal Hussien M. Alkhalifah
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Wael N. Hozzein
- Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Chengqi Yan
- Institute of Biotechnology, Ningbo Academy of Agricultural Sciences, Ningbo, China
| | - Bin Li
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Lihui Xu
- Institute of Eco-Environmental Protection, Shanghai Academy of Agricultural Sciences, Shanghai, China
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Zhang D, Mei L, Hao Y, Yi B, Hu J, Wang D, Zhao Y, Wang Z, Huang H, Xu Y, Deng X, Li C, Li X, Zhou Q, Lu Y. A hydrogel-based first-aid tissue adhesive with effective hemostasis and anti-bacteria for trauma emergency management. Biomater Res 2023; 27:56. [PMID: 37269017 DOI: 10.1186/s40824-023-00392-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 05/08/2023] [Indexed: 06/04/2023] Open
Abstract
BACKGROUND Clinical tissue adhesives remain some critical drawbacks for managing emergency injuries, such as inadequate adhesive strength and insufficient anti-infection ability. Herein, a novel, self-healing, and antibacterial carboxymethyl chitosan/polyaldehyde dextran (CMCS/PD) hydrogel is designed as the first-aid tissue adhesive for effective trauma emergency management. METHODS We examined the gel-forming time, porosity, self-healing, antibacterial properties, cytotoxicity, adhesive strength, and hemocompatibility. Liver hemorrhage, tail severance, and skin wound infection models of rats are constructed in vivo, respectively. RESULTS Results demonstrate that the CMCS/PD hydrogel has the rapid gel-forming (~ 5 s), good self-healing, and effective antibacterial abilities, and could adhere to tissue firmly (adhesive strength of ~ 10 kPa and burst pressure of 327.5 mmHg) with excellent hemocompatibility and cytocompatibility. This suggests the great prospect of CMCS/PD hydrogel in acting as a first-aid tissue adhesive for trauma emergency management. The CMCS/PD hydrogel is observed to not only achieve rapid hemostasis for curing liver hemorrhage and tail severance in comparison to commercial hemostatic gel (Surgiflo ®) but also exhibit superior anti-infection for treating acute skin trauma compared with clinical disinfectant gel (Prontosan ®). CONCLUSIONS Overall, the CMCS/PD hydrogel offers a promising candidate for first-aid tissue adhesives to manage the trauma emergency. Because of the rapid gel-forming time, it could also be applied as a liquid first-aid bandage for mini-invasive surgical treatment.
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Affiliation(s)
- Dongjie Zhang
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Li Mei
- Department of Stomatology, Qingdao University, Qingdao, 266021, China
| | - Yuanping Hao
- Department of Stomatology, Qingdao Stomatological Hospital Affiliated to Qingdao University, Qingdao, 266003, China
| | - Bingcheng Yi
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, 266071, China
| | - Jilin Hu
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Danyang Wang
- Department of Stomatology, Qingdao University, Qingdao, 266021, China
| | - Yaodong Zhao
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
- Department of Stomatology, Qingdao University, Qingdao, 266021, China
| | - Zhe Wang
- Department of Stomatology, Qingdao University, Qingdao, 266021, China
| | - Hailin Huang
- Department of Stomatology, Qingdao University, Qingdao, 266021, China
| | - Yongzhi Xu
- Department of Stomatology, Qingdao Stomatological Hospital Affiliated to Qingdao University, Qingdao, 266003, China
| | - Xuyang Deng
- Department of Stomatology, Qingdao University, Qingdao, 266021, China
| | - Cong Li
- Department of Stomatology, Qingdao University, Qingdao, 266021, China
| | - Xuewei Li
- Department of Hematology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Qihui Zhou
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, 266071, China.
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 325000, Zhejiang, China.
| | - Yun Lu
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China.
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Xie L, Liu Y, Xu S, Zhang W. Enhanced Anti-Biofouling Properties of BWRO Membranes via the Deposition of Poly (Catechol/Polyamine) and Ag Nanoparticles. MEMBRANES 2023; 13:membranes13050530. [PMID: 37233591 DOI: 10.3390/membranes13050530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 04/28/2023] [Accepted: 05/15/2023] [Indexed: 05/27/2023]
Abstract
The surface modification of reverse osmosis (RO) membranes to improve their anti-biofouling properties is gaining increased attention. Here, we modified the polyamide brackish water reverse osmosis (BWRO) membrane via the biomimetic co-deposition of catechol (CA)/tetraethylenepentamine (TEPA) and in situ growth of Ag nanoparticles. Ag ions were reduced into Ag nanoparticles (AgNPs) without extraneous reducing agents. The hydrophilic property of the membrane was improved, and the zeta potential was also increased after the deposition of poly (catechol/polyamine) and AgNPs. Compared with the original RO membrane, the optimized PCPA3-Ag10 membrane showed a slight reduction in water flux, and the salt rejection declined, but enhanced anti-adhesion and anti-bacterial activities were observed. The FDRt of the PCPA3-Ag10 membranes during the filtration of BSA, SA and DTAB solution were 5.63 ± 0.09%, 18.34 ± 0.33% and 34.12 ± 0.15%, respectively, much better than those of the original membrane. Moreover, the PCPA3-Ag10 membrane exhibited a 100% reduction in the number of viable bacteria (B. subtilis and E. coli) inoculated on the membrane. The stability of the AgNPs was also high enough, and these results verify the effectiveness of poly (catechol/polyamine) and the AgNP-based modification strategy for the control of fouling.
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Affiliation(s)
- Lixin Xie
- School of Chemical Engineering and Technology, Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering Tianjin University, Tianjin 300350, China
| | - Yaqian Liu
- School of Chemical Engineering and Technology, Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering Tianjin University, Tianjin 300350, China
| | - Shichang Xu
- School of Chemical Engineering and Technology, Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering Tianjin University, Tianjin 300350, China
| | - Wen Zhang
- School of Chemical Engineering and Technology, Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering Tianjin University, Tianjin 300350, China
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Wang L, Dekker M, Heising J, Zhao L, Fogliano V. Food matrix design can influence the antimicrobial activity in the food systems: A narrative review. Crit Rev Food Sci Nutr 2023:1-27. [PMID: 37154045 DOI: 10.1080/10408398.2023.2205937] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Antimicrobial agents are safe preservatives having the ability to protect foods from microbial spoilage and extend their shelf life. Many factors, including antimicrobials' chemical features, storage environments, delivery methods, and diffusion in foods, can affect their antimicrobial activities. The physical-chemical characteristics of the food itself play an important role in determining the efficacy of antimicrobial agents in foods; however the mechanisms behind it have not been fully explored. This review provides new insights and comprehensive knowledge regarding the impacts of the food matrix, including the food components and food (micro)structures, on the activities of antimicrobial agents. Studies of the last 10 years regarding the influences of the food structure on the effects of antimicrobial agents against the microorganisms' growth were summarized. The mechanisms underpinning the loss of the antimicrobial agents' activity in foods are proposed. Finally, some strategies/technologies to improve the protection of antimicrobial agents in specific food categories are discussed.
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Affiliation(s)
- Li Wang
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai, PR China
- Food Quality and Design, Wageningen University & Research, Wageningen, The Netherlands
| | - Matthijs Dekker
- Food Quality and Design, Wageningen University & Research, Wageningen, The Netherlands
| | - Jenneke Heising
- Food Quality and Design, Wageningen University & Research, Wageningen, The Netherlands
| | - Liming Zhao
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai, PR China
| | - Vincenzo Fogliano
- Food Quality and Design, Wageningen University & Research, Wageningen, The Netherlands
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Smola-Dmochowska A, Lewicka K, Macyk A, Rychter P, Pamuła E, Dobrzyński P. Biodegradable Polymers and Polymer Composites with Antibacterial Properties. Int J Mol Sci 2023; 24:ijms24087473. [PMID: 37108637 PMCID: PMC10138923 DOI: 10.3390/ijms24087473] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/05/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
Antibiotic resistance is one of the greatest threats to global health and food security today. It becomes increasingly difficult to treat infectious disorders because antibiotics, even the newest ones, are becoming less and less effective. One of the ways taken in the Global Plan of Action announced at the World Health Assembly in May 2015 is to ensure the prevention and treatment of infectious diseases. In order to do so, attempts are made to develop new antimicrobial therapeutics, including biomaterials with antibacterial activity, such as polycationic polymers, polypeptides, and polymeric systems, to provide non-antibiotic therapeutic agents, such as selected biologically active nanoparticles and chemical compounds. Another key issue is preventing food from contamination by developing antibacterial packaging materials, particularly based on degradable polymers and biocomposites. This review, in a cross-sectional way, describes the most significant research activities conducted in recent years in the field of the development of polymeric materials and polymer composites with antibacterial properties. We particularly focus on natural polymers, i.e., polysaccharides and polypeptides, which present a mechanism for combating many highly pathogenic microorganisms. We also attempt to use this knowledge to obtain synthetic polymers with similar antibacterial activity.
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Affiliation(s)
- Anna Smola-Dmochowska
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Marii Curie-Skłodowskiej Str., 41-819 Zabrze, Poland
| | - Kamila Lewicka
- Faculty of Science and Technology, Jan Dlugosz University in Czestochowa, 13/15 Armii Krajowej Av., 42-200 Czestochowa, Poland
| | - Alicja Macyk
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Kraków, Poland
| | - Piotr Rychter
- Faculty of Science and Technology, Jan Dlugosz University in Czestochowa, 13/15 Armii Krajowej Av., 42-200 Czestochowa, Poland
| | - Elżbieta Pamuła
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Kraków, Poland
| | - Piotr Dobrzyński
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Marii Curie-Skłodowskiej Str., 41-819 Zabrze, Poland
- Faculty of Science and Technology, Jan Dlugosz University in Czestochowa, 13/15 Armii Krajowej Av., 42-200 Czestochowa, Poland
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Leonida MD, Benzecry A, Lozanovska B, Mahmoud Z, Reid A, Belbekhouche S. Impact of tannic acid on nisin encapsulation in chitosan particles. Int J Biol Macromol 2023; 233:123489. [PMID: 36736978 DOI: 10.1016/j.ijbiomac.2023.123489] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 01/25/2023] [Accepted: 01/27/2023] [Indexed: 02/05/2023]
Abstract
This study investigates the effect of addition of tannic acid on nisin encapsulated in chitosan matrices. Composite materials were prepared using a mild, environmentally friendly procedure, ionotropic gelation of chitosan by sodium tripolyphosphate in the presence of nisin (N) at different concentrations. In two parallel sets of preparations, tannic acid (TA) was added at 10:1 and 5:1 N:TA, respectively. The obtained particles were characterized by FTIR, SEM, size, zeta potential, encapsulation efficiency, loading capacity, and ratio of residual free amino groups. The kinetics of nisin release from the particles was studied to assess the role of TA as a potential modulator thereof. Its addition resulted in enhanced release, higher at lower N:TA ratio. An additional benefit was that TA, a strong antioxidant, imparted antioxidant activity to the composites. Antimicrobial turbidimetric tests were performed against one gram-positive bacterium (Staphylococcus aureus) and two gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa), all relevant for the food, pharmaceutical, and cosmetic industries. All the composites showed synergistic effects against all the bacteria tested. The positive coaction was stronger against the gram-negative species. This is remarkable since nisin by itself has not known activity against them.
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Affiliation(s)
- Mihaela D Leonida
- Department of Chemistry and Biochemistry, Fairleigh Dickinson University, Teaneck, NJ 07666, USA.
| | - Alice Benzecry
- Department of Chemistry and Biochemistry, Fairleigh Dickinson University, Teaneck, NJ 07666, USA
| | - Bisera Lozanovska
- Department of Chemistry and Biochemistry, Fairleigh Dickinson University, Teaneck, NJ 07666, USA
| | - Zainab Mahmoud
- Department of Chemistry and Biochemistry, Fairleigh Dickinson University, Teaneck, NJ 07666, USA
| | - Ashley Reid
- Department of Chemistry and Biochemistry, Fairleigh Dickinson University, Teaneck, NJ 07666, USA
| | - Sabrina Belbekhouche
- Université Paris Est Créteil, CNRS, Institut Chimie et Matériaux Paris Est, UMR 7182, 2 Rue Henri Dunant, 94320 Thiais, France.
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Chitosan nanoparticles efficiently enhance the dispersibility, stability and selective antibacterial activity of insoluble isoflavonoids. Int J Biol Macromol 2023; 232:123420. [PMID: 36708890 DOI: 10.1016/j.ijbiomac.2023.123420] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/20/2023] [Accepted: 01/21/2023] [Indexed: 01/27/2023]
Abstract
Natural isoflavonoids have attracted much attention in the treatment of oral bacterial infections and other diseases due to their excellent antibacterial activity and safety. However, their poor water solubility, instability and low bioavailability seriously limited the practical application. In this study, licoricidin-loaded chitosan nanoparticles (LC-CSNPs) were synthesized by self-assembly for improving the dispersion of licoricidin (LC) and strengthening antibacterial and anti-biofilm performance. Compared to free LC, the minimum inhibitory concentration of LC-CSNPs against Streptococcus mutans decreased >2-fold to 26 μg/mL, and LC-CSNPs could ablate 70 % biofilms at this concentration. The enhanced antibacterial activity was mainly attributed to the spontaneous surface adsorption of LC-CSNPs on cell membranes through electrostatic interactions. More valuably, LC-CSNPs had no inhibitory effect on the growth of probiotic. Mechanism study indicated that LC-CSNPs altered the transmembrane potential to cause bacterial cells in a hyperpolarized state, generating ROS to cause cells damage and eventually apoptosis. This work demonstrated that the chitosan-based nanoparticles have great potential in enhancing the dispersibility and antibacterial activity of insoluble isoflavonoids, offering a promising therapeutic strategy for oral infections.
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Pino P, Bosco F, Mollea C, Onida B. Antimicrobial Nano-Zinc Oxide Biocomposites for Wound Healing Applications: A Review. Pharmaceutics 2023; 15:pharmaceutics15030970. [PMID: 36986831 PMCID: PMC10053511 DOI: 10.3390/pharmaceutics15030970] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 03/19/2023] Open
Abstract
Chronic wounds are a major concern for global health, affecting millions of individuals worldwide. As their occurrence is correlated with age and age-related comorbidities, their incidence in the population is set to increase in the forthcoming years. This burden is further worsened by the rise of antimicrobial resistance (AMR), which causes wound infections that are increasingly hard to treat with current antibiotics. Antimicrobial bionanocomposites are an emerging class of materials that combine the biocompatibility and tissue-mimicking properties of biomacromolecules with the antimicrobial activity of metal or metal oxide nanoparticles. Among these nanostructured agents, zinc oxide (ZnO) is one of the most promising for its microbicidal effects and its anti-inflammatory properties, and as a source of essential zinc ions. This review analyses the most recent developments in the field of nano-ZnO–bionanocomposite (nZnO-BNC) materials—mainly in the form of films, but also hydrogel or electrospun bandages—from the different preparation techniques to their properties and antibacterial and wound-healing performances. The effect of nanostructured ZnO on the mechanical, water and gas barrier, swelling, optical, thermal, water affinity, and drug-release properties are examined and linked to the preparation methods. Antimicrobial assays over a wide range of bacterial strains are extensively surveyed, and wound-healing studies are finally considered to provide a comprehensive assessment framework. While early results are promising, a systematic and standardised testing procedure for the comparison of antibacterial properties is still lacking, partly because of a not-yet fully understood antimicrobial mechanism. This work, therefore, allowed, on one hand, the determination of the best strategies for the design, engineering, and application of n-ZnO-BNC, and, on the other hand, the identification of the current challenges and opportunities for future research.
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Boamah PO, Onumah J, Aduguba WO, Santo KG. Application of depolymerized chitosan in crop production: A review. Int J Biol Macromol 2023; 235:123858. [PMID: 36871686 DOI: 10.1016/j.ijbiomac.2023.123858] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 02/04/2023] [Accepted: 02/24/2023] [Indexed: 03/06/2023]
Abstract
Currently, chitosan (CHT) is well known for its uses, particularly in veterinary and agricultural fields. However, chitosan's uses suffer greatly due to its extremely solid crystalline structure, it is insoluble at pH levels above or equal to 7. This has sped up the process of derivatizing and depolymerizing it into low molecular weight chitosan (LMWCHT). As a result of its diverse physicochemical as well as biological features which include antibacterial activity, non-toxicity, and biodegradability, LMWCHT has evolved into new biomaterials with extremely complex functions. The most important physicochemical and biological property is antibacterial, which has some degree of industrialization today. CHT and LMWCHT have potential due to the antibacterial and plant resistance-inducing properties when applied in crop production. This study has highlighted the many advantages of chitosan derivatives as well as the most recent studies on low molecular weight chitosan applications in crop development.
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Affiliation(s)
- Peter Osei Boamah
- Department of Ecological Agriculture, Bolgatanga Technical University, Bolgatanga, Ghana.
| | - Jacqueline Onumah
- Department of Ecological Agriculture, Bolgatanga Technical University, Bolgatanga, Ghana
| | | | - Kwadwo Gyasi Santo
- Department of Horticulture and Crop Production, University of Energy and Natural Resources, Ghana
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Alvand ZM, Rahimi M, Rafati H. Chitosan decorated essential oil nanoemulsions for enhanced antibacterial activity using a microfluidic device and response surface methodology. Int J Biol Macromol 2023; 239:124257. [PMID: 36996964 DOI: 10.1016/j.ijbiomac.2023.124257] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/19/2023] [Accepted: 03/27/2023] [Indexed: 03/30/2023]
Abstract
In this work, the antibacterial activity of Satureja Khuzestanica essential oil nanoemulsions improved by employing chitosan (ch/SKEO NE) against E. coli bacterium. The optimum ch/SKEO NE with mean droplet size of 68 nm was attained at 1.97, 1.23, and 0.10%w/w of surfactant, essential oil and chitosan, using Response Surface Methodology (RSM). Applying microfluidic platform, the ch/SKEO NE resulted in improved antibacterial activity owing to the modification of surface properties. The nanoemulsion samples showed a significant rupturing effect on the E. coli bacterial cell membrane which resulted in a rapid release of cellular contents. This action was remarkably intensified by executing microfluidic chip in parallel to the conventional method. Having treated the bacteria in the microfluidic chip for 5 min with a 8 μg/mL concentration of ch/SKEO NE, the bacterial integrity disrupted quickly, and the activity was totally lost in a 10-min period at 37 μg/mL, while it took 5 h for a complete inhibition in the conventional method using the same concentration of ch/SKEO NE. It can be concluded that nanoemulsification of EOs using chitosan coating can intensify the interaction of nanodroplets with the bacterial membrane, especially within the microfluidic chips which provides high contact surface area.
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Yang X, Yu Q, Wang X, Gao W, Zhou Y, Yi H, Tang X, Zhao S, Gao F, Tang X. Progress in the application of spray-type antibacterial coatings for disinfection. Trends Food Sci Technol 2023. [DOI: 10.1016/j.tifs.2023.03.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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