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Almajidi YQ, Ponnusankar S, Chaitanya MVNL, Marisetti AL, Hsu CY, Dhiaa AM, Saadh MJ, Pal Y, Thabit R, Adhab AH, Alsaikhan F, Narmani A, Farhood B. Chitosan-based nanofibrous scaffolds for biomedical and pharmaceutical applications: A comprehensive review. Int J Biol Macromol 2024; 264:130683. [PMID: 38458289 DOI: 10.1016/j.ijbiomac.2024.130683] [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: 10/15/2023] [Revised: 02/03/2024] [Accepted: 03/05/2024] [Indexed: 03/10/2024]
Abstract
Nowadays, there is a wide range of deficiencies in treatment of diseases. These limitations are correlated with the inefficient ability of current modalities in the prognosis, diagnosis, and treatment of diseases. Therefore, there is a fundamental need for the development of novel approaches to overcome the mentioned restrictions. Chitosan (CS) nanoparticles, with remarkable physicochemical and mechanical properties, are FDA-approved biomaterials with potential biomedical aspects, like serum stability, biocompatibility, biodegradability, mucoadhesivity, non-immunogenicity, anti-inflammatory, desirable pharmacokinetics and pharmacodynamics, etc. CS-based materials are mentioned as ideal bioactive materials for fabricating nanofibrous scaffolds. Sustained and controlled drug release and in situ gelation are other potential advantages of these scaffolds. This review highlights the latest advances in the fabrication of innovative CS-based nanofibrous scaffolds as potential bioactive materials in regenerative medicine and drug delivery systems, with an outlook on their future applications.
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Affiliation(s)
| | - Sivasankaran Ponnusankar
- Department of Pharmacy Practice, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Ooty 643001, The Nilgiris, India
| | - M V N L Chaitanya
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Arya Lakshmi Marisetti
- Department of Pharmacognosy and Phytochemistry, School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University, Pushp Vihar, New Delhi 110017, India
| | - Chou-Yi Hsu
- Department of Pharmacy, Chia Nan University of Pharmacy and Science, Tainan City 71710, Taiwan.
| | | | - Mohamed J Saadh
- Faculty of Pharmacy, Middle East University, Amman 11831, Jordan
| | - Yogendra Pal
- Department of Pharmaceutical Chemistry, CT College of Pharmacy, Shahpur, Jalandhar, Punjab 144020, India
| | - Russul Thabit
- Medical Technical College, Al-Farahidi University, Iraq
| | | | - Fahad Alsaikhan
- College of Pharmacy, Prince Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia; School of Pharmacy, Ibn Sina National College for Medical Studies, Jeddah, Saudi Arabia.
| | - Asghar Narmani
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran.
| | - Bagher Farhood
- Department of Medical Physics and Radiology, Faculty of Paramedical Sciences, Kashan University of Medical Sciences, Kashan, Iran.
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Keet G, Du Toit JP, Pott RWM. Methods for the separation of hydraulic retention time and solids retention time in the application of photosynthetic microorganisms in photobioreactors: a review. World J Microbiol Biotechnol 2024; 40:100. [PMID: 38366203 PMCID: PMC10873236 DOI: 10.1007/s11274-024-03909-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 01/25/2024] [Indexed: 02/18/2024]
Abstract
Photosynthetic microorganisms have a wide range of biotechnical applications, through the application of their versatile metabolisms. However, their use in industry has been extremely limited to date, partially because of the additional complexities associated with their cultivation in comparison to other organisms. Strategies and developments in photobioreactors (PBRs) designed for their culture and applications are needed to drive the field forward. One particular area which bears examination is the use of strategies to separate solid- and hydraulic-residence times (SRT and HRT), to facilitate flow-through systems and continuous processing. The aim of this review is to discuss the various types of PBRs and methods which are currently demonstrated in the literature and industry, with a focus on the separation of HRT and SRT. The use of an efficient method of biomass retention in a PBR may be advantageous as it unlocks the option for continuous operation, which may improve efficiency, and improve economic feasibility of large-scale implementation of photosynthetic biocatalysts, especially where biomass is not the primary product. Due to the underexplored nature of the separation of HRT and SRT in reactors using photosynthetic microorganisms, limited literature is available regarding their performance, efficiencies, and potential issues. This review first introduces an overview into photosynthetic microorganisms cultivated and commonly exploited for use in biotechnological applications, with reference to bioreactor considerations specific to each organism. Following this, the existing technologies used for the separation of HRT and SRT in PBRs are explored. The respective advantages and disadvantages are discussed for each PBR design, which may inform an interested bioprocess engineer.
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Affiliation(s)
- Grant Keet
- Department of Chemical Engineering, Stellenbosch University, Stellenbosch, South Africa
| | - J P Du Toit
- Department of Chemical Engineering, Stellenbosch University, Stellenbosch, South Africa
- Watchmaker Genomics, Cape Town, South Africa
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3
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Fırlak Demirkan M, Öztürk D, Çifçibaşı ZS, Ertan F, Hardy JG, Nurşeval Oyunlu A, Darıcı H. Controlled Sr(ii) ion release from in situ crosslinking electroactive hydrogels with potential for the treatment of infections. RSC Adv 2024; 14:4324-4334. [PMID: 38304567 PMCID: PMC10828636 DOI: 10.1039/d3ra07061a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 12/26/2023] [Indexed: 02/03/2024] Open
Abstract
The development of electrochemical stimuli-responsive drug delivery systems is of both academic and industrial interest due to the ease with which it is possible to trigger payload release, providing drug delivery in a controllable manner. Herein, the preparation of in situ forming hydrogels including electroactive polypyrrole nanoparticles (PPy-NPs) where Sr2+ ions are electrochemically loaded for electrically triggered release of Sr2+ ions is reported. The hydrogels were characterized by a variety of techniques including Fourier-transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), thermogravimetric analysis (TGA), X-ray diffraction (XRD), cyclic voltammetry (CV), etc. The cytocompatibility towards human mesenchymal stem cells (MSCs) and fibroblasts were also studied. The Sr2+ ion loaded PEC-ALD/CS/PPy-NPs hydrogel showed no significant cytotoxicity towards human mesenchymal stem cells (MSCs) and fibroblasts. Sr2+ ions were electrochemically loaded and released from the electroactive hydrogels, and the application of an electrical stimulus enhanced the release of Sr2+ ions from gels by ca. 2-4 fold relative to the passive release control experiment. The antibacterial activity of Sr2+ ions against E. coli and S. aureus was demonstrated in vitro. Although these prototypical examples of Sr2+ loaded electroactive gels don't release sufficient Sr2+ ions to show antibacterial activity against E. coli and S. aureus, we believe future iterations with optimised physical properties of the gels will be capable of doing so.
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Affiliation(s)
| | - Dilek Öztürk
- Department of Chemistry, Gebze Technical University Gebze Kocaeli 41400 Turkey
| | | | - Fatma Ertan
- Department of Chemistry, Gebze Technical University Gebze Kocaeli 41400 Turkey
| | | | | | - Hakan Darıcı
- HD Bioink Biotechnology Corp. İstanbul Turkey
- 3D Bioprinting Design & Prototyping R&D Center, Istinye University Istanbul Turkey
- Faculty of Medicine, Dept. of Histology & Embryology, Istinye University Istanbul Turkey
- Stem Cell, and Tissue Engineering R&D Center, Istinye University Istanbul Turkey
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4
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Cuvillier L, Passaretti A, Guilminot E, Joseph E. Agar and Chitosan Hydrogels' Design for Metal-Uptaking Treatments. Gels 2024; 10:55. [PMID: 38247779 PMCID: PMC10815442 DOI: 10.3390/gels10010055] [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: 11/06/2023] [Revised: 12/16/2023] [Accepted: 12/20/2023] [Indexed: 01/23/2024] Open
Abstract
In the field of cultural heritage, the use of natural gels is rising for the application of active agents. Here, two natural polymers are assessed: agar, a pioneer hydrogel for conservation treatments, and chitosan, a rather novel and metal-binding gel. For chitosan, a state-of-the-art based formulation (CS-ItA-LCys) is evaluated as it was reported for silver-complexing properties. It is evaluated whether these polymers can withstand the addition of the chelating compound deferoxamine, which is a bacterial siderophore. This allows for the obtainment of completely bio-sourced gel systems. A Fourier-transformed (FT) infrared spectroscopy characterization is performed, completed with rheological measurements and Cryo-Scanning Electron Microscopy (cryo-SEM) to investigate the physico-chemical properties of the gels, as well as their interaction with deferoxamine. Both polymers are also tested for their inherent complexing ability on silver ions using FT-Raman spectroscopy. A multi-analytical comparison shows different microstructures, in particular, the presence of a thick membrane for chitosan and different mechanical behaviors, with agar being more brittle. Neither hydrogel seems affected by the addition of deferoxamine; this is shown by similar rheological behavior and molecular structures in the presence or absence of the chelator. The intrinsic abilities of the chitosan formulation to make silver complex are demonstrated with the observation of two peaks characteristic of Ag-S and Ag-O bonds. Agar and chitosan are both proven to be reliable gels to act as carriers for bio-based active agents. This paper confirms the potential asset of the chitosan formulation CS-ItA-LCys as a promising gel for the complexation of soluble silver.
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Affiliation(s)
- Luana Cuvillier
- Laboratory of Technologies for Heritage Materials, University of Neuchâtel, Bellevaux 51, 2000 Neuchâtel, Switzerland; (L.C.); (A.P.)
- Haute Ecole Arc Conservation Restauration, University of Applied Sciences and Arts Western Switzerland HES-SO, Espace de l’Europe 11, 2000 Neuchâtel, Switzerland
| | - Arianna Passaretti
- Laboratory of Technologies for Heritage Materials, University of Neuchâtel, Bellevaux 51, 2000 Neuchâtel, Switzerland; (L.C.); (A.P.)
- Haute Ecole Arc Conservation Restauration, University of Applied Sciences and Arts Western Switzerland HES-SO, Espace de l’Europe 11, 2000 Neuchâtel, Switzerland
| | - Elodie Guilminot
- Arc’Antique Conservation and Research Laboratory, 26 Rue de la Haute Forêt, 44300 Nantes, France;
| | - Edith Joseph
- Haute Ecole Arc Conservation Restauration, University of Applied Sciences and Arts Western Switzerland HES-SO, Espace de l’Europe 11, 2000 Neuchâtel, Switzerland
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Almajidi YQ, Gupta J, Sheri FS, Zabibah RS, Faisal A, Ruzibayev A, Adil M, Saadh MJ, Jawad MJ, Alsaikhan F, Narmani A, Farhood B. Advances in chitosan-based hydrogels for pharmaceutical and biomedical applications: A comprehensive review. Int J Biol Macromol 2023; 253:127278. [PMID: 37806412 DOI: 10.1016/j.ijbiomac.2023.127278] [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: 07/19/2023] [Revised: 09/26/2023] [Accepted: 10/05/2023] [Indexed: 10/10/2023]
Abstract
The treatment of diseases, such as cancer, is one of the most significant issues correlated with human beings health. Hydrogels (HGs) prepared from biocompatible and biodegradable materials, especially biopolymers, have been effectively employed for the sort of pharmaceutical and biomedical applications, including drug delivery systems, biosensors, and tissue engineering. Chitosan (CS), one of the most abundant bio-polysaccharide derived from chitin, is an efficient biomaterial in the prognosis, diagnosis, and treatment of diseases. CS-based HGs possess some potential advantages, like high values of bioactive encapsulation, efficient drug delivery to a target site, sustained drug release, good biocompatibility and biodegradability, high serum stability, non-immunogenicity, etc., which made them practical and useful for pharmaceutical and biomedical applications. In this review, we summarize recent achievements and advances associated with CS-based HGs for drug delivery, regenerative medicine, disease detection and therapy.
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Affiliation(s)
| | - Jitendra Gupta
- Institute of Pharmaceutical Research, GLA University, Mathura Pin Code 281406, U.P., India
| | - Fatime Satar Sheri
- College of Dentistry, National University of Science and Technology, Dhi Qar, Iraq
| | - Rahman S Zabibah
- Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq
| | - Ahmed Faisal
- Department of Pharmacy, Al-Noor University College, Nineveh, Iraq
| | - Akbarali Ruzibayev
- Department of Food Products Technology, Tashkent Institute of Chemical Technology, Navoi street 32, 100011 Tashkent City, Uzbekistan
| | - Mohaned Adil
- Pharmacy College, Al-Farahidi University, Baghdad, Iraq
| | - Mohamed J Saadh
- Faculty of Pharmacy, Middle East University, Amman 11831, Jordan
| | | | - Fahad Alsaikhan
- College of Pharmacy, Prince Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia; School of Pharmacy, Ibn Sina National College for Medical Studies, Jeddah, Saudi Arabia.
| | - Asghar Narmani
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran.
| | - Bagher Farhood
- Department of Medical Physics and Radiology, Faculty of Paramedical Sciences, Kashan University of Medical Sciences, Kashan, Iran.
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Iqbal Y, Ahmed I, Irfan MF, Chatha SAS, Zubair M, Ullah A. Recent advances in chitosan-based materials; The synthesis, modifications and biomedical applications. Carbohydr Polym 2023; 321:121318. [PMID: 37739510 DOI: 10.1016/j.carbpol.2023.121318] [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: 06/15/2023] [Revised: 08/18/2023] [Accepted: 08/19/2023] [Indexed: 09/24/2023]
Abstract
The attention to polymer-based biomaterials, for instance, chitosan and its derivatives, as well as the techniques for using them in numerous scientific domains, is continuously rising. Chitosan is a decomposable naturally occurring polymeric material that is mostly obtained from seafood waste. Because of its special ecofriendly, biocompatible, non- toxic nature as well as antimicrobial properties, chitosan-based materials have received a lot of interest in the field of biomedical applications. The reactivity of chitosan is mainly because of the amino and hydroxyl groups in its composition, which makes it further fascinating for various uses, including biosensing, textile finishing, antimicrobial wound dressing, tissue engineering, bioimaging, gene, DNA and drug delivery and as a coating material for medical implants. This study is an overview of the different types of chitosan-based materials which now a days have been fabricated by applying different techniques and modifications that include etherification, esterification, crosslinking, graft copolymerization and o-acetylation etc. for hydroxyl groups' processes and acetylation, quaternization, Schiff's base reaction, and grafting for amino groups' reactions. Furthermore, this overview summarizes the literature from recent years related to the important applications of chitosan-based materials (i.e., thin films, nanocomposites or nanoparticles, sponges and hydrogels) in different biomedical applications.
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Affiliation(s)
- Yasir Iqbal
- Lipid Utilization, Polymers/Materials Chemistry Group, Department of Agriculture Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada; Department of Chemistry, Government College University Faisalabad, 38000, Pakistan
| | - Iqbal Ahmed
- Department of Chemistry, Government College University Faisalabad, 38000, Pakistan
| | - Muhammad Faisal Irfan
- Lipid Utilization, Polymers/Materials Chemistry Group, Department of Agriculture Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
| | | | - Muhammad Zubair
- Lipid Utilization, Polymers/Materials Chemistry Group, Department of Agriculture Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
| | - Aman Ullah
- Lipid Utilization, Polymers/Materials Chemistry Group, Department of Agriculture Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada.
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Antony IR, Pradeep A, Pillai AV, Menon RR, Kumar VA, Jayakumar R. Antiseptic Chitosan-Poly(hexamethylene) Biguanide Hydrogel for the Treatment of Infectious Wounds. J Funct Biomater 2023; 14:528. [PMID: 37888193 PMCID: PMC10607813 DOI: 10.3390/jfb14100528] [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] [Received: 09/18/2023] [Revised: 10/13/2023] [Accepted: 10/17/2023] [Indexed: 10/28/2023] Open
Abstract
Topical wound infections create the ideal conditions for microbial colonization and growth in terms of moisture, temperature, and nutrients. When they are not protected, numerous types of bacteria from the internal microbiota and the external environment may colonize them, creating a polymicrobial population. Treatment of these wounds often necessitates the use of antibiotics that may have systemic harmful effects. Unlike antibiotics, topical antiseptics exhibit a wider range of activity and reduced systemic toxicity and resistance. In order to address this issue, we developed an antiseptic Chitosan-Poly (hexamethylene) Biguanide (CS-PHMB) hydrogel. The prepared hydrogel was characterized using Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). SEM images showed the smooth morphology and characteristic FTIR peaks of PHMB and confirmed the incorporation of the antiseptic into the chitosan (CS) hydrogel. A Water Vapor Permeation Rate study confirms the moisture retention ability of the CS-PHMB hydrogel. Rheological studies proved the gel strength and temperature stability. The prepared hydrogel inhibited the growth of S. aureus, P. aeruginosa, E. coli, methicillin-resistant Staphylococcus aureus (MRSA), and K. pneumoniae, which confirms its antibacterial properties. It also inhibited biofilm formation for S. aureus and E. coli. CS-PHMB hydrogel is also found to be hemo- and cytocompatible in nature. Thus, the developed CS-PHMB hydrogel is a very potent candidate to be used for treating infectious topical wounds with low systemic toxicity.
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Affiliation(s)
- Irine Rose Antony
- Polymeric Biomaterials Lab, School of Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, India; (I.R.A.); (A.P.)
| | - Aathira Pradeep
- Polymeric Biomaterials Lab, School of Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, India; (I.R.A.); (A.P.)
| | - Anoop Vasudevan Pillai
- Department of General Surgery, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India; (A.V.P.); (R.R.M.)
| | - Riju Ramachandran Menon
- Department of General Surgery, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India; (A.V.P.); (R.R.M.)
| | - Vasudevan Anil Kumar
- Department of Microbiology, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India;
| | - Rangasamy Jayakumar
- Polymeric Biomaterials Lab, School of Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, India; (I.R.A.); (A.P.)
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Zhang K, Liu Y, Shi X, Zhang R, He Y, Zhang H, Wang W. Application of polyvinyl alcohol/chitosan copolymer hydrogels in biomedicine: A review. Int J Biol Macromol 2023:125192. [PMID: 37276897 DOI: 10.1016/j.ijbiomac.2023.125192] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 05/20/2023] [Accepted: 05/31/2023] [Indexed: 06/07/2023]
Abstract
Hydrogels is a hydrophilic, cross-linked polymer of three-dimensional network structures. The application of hydrogels prepared from a single polymer in the biomedical field has many drawbacks. The functional blend of polyvinyl alcohol and chitosan allows hydrogels to have better and more desirable properties than those produced from a single polymer, which is a good biomaterial for development and design. In this paper, we have reviewed the progress in the application of polyvinyl alcohol/chitosan composite hydrogels in various medical fields, the different cross-linking agents and cross-linking methods, and the research progress in the optimization of composite hydrogels for their subsequent wide range of biomedical applications.
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Affiliation(s)
- Kui Zhang
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000, China.
| | - Yan Liu
- Department of Gynecology, First Affiliated Hospital of Xi 'an Medical College, Xi'an 710000, China
| | - Xuewen Shi
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000, China
| | - Ruihao Zhang
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000, China
| | - Yixiang He
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000, China
| | - Huaibin Zhang
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000, China
| | - Wenji Wang
- Department of Orthopedics, The First Hospital of Lanzhou University, Lanzhou 730000, China.
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Chen Y, Liu Y, Dong Q, Xu C, Deng S, Kang Y, Fan M, Li L. Application of functionalized chitosan in food: A review. Int J Biol Macromol 2023; 235:123716. [PMID: 36801297 DOI: 10.1016/j.ijbiomac.2023.123716] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 02/05/2023] [Accepted: 02/12/2023] [Indexed: 02/18/2023]
Abstract
Environmental and sustainability issues have received increasing attention in recent years. As a natural biopolymer, chitosan has been developed as a sustainable alternative to traditional chemicals such as food preservation, food processing, food packaging, and food additives due to its abundant functional groups and excellent biological functions. This review analyzes and summarizes the unique properties of chitosan, with a particular focus on the mechanism of action for its antibacterial and antioxidant properties. This provides a lot of information for the preparation and application of chitosan-based antibacterial and antioxidant composites. In addition, chitosan is modified by physical, chemical and biological modifications to obtain a variety of functionalized chitosan-based materials. The modification not only improves the physicochemical properties of chitosan, but also enables it to have different functions and effects, showing promising applications in multifunctional fields such as food processing, food packaging, and food ingredients. In the current review, applications, challenges, and future perspectives of functionalized chitosan in food will be discussed.
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Affiliation(s)
- Yu Chen
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai 201306, PR China
| | - Yong Liu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Qingfeng Dong
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Changhua Xu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Shanggui Deng
- Engineering Research Center of Food Thermal Processing Technology, College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316000, Zhejiang, China
| | - Yongfeng Kang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Min Fan
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai 201306, PR China.
| | - Li Li
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; Engineering Research Center of Food Thermal-Processing Technology, Shanghai Ocean University, Shanghai 201306, China.
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Giordano-Kelhoffer B, Rodríguez-Gonzalez R, Perpiñan-Blasco M, Buitrago JO, Bosch BM, Perez RA. A Novel Chitosan Composite Biomaterial with Drug Eluting Capacity for Maxillary Bone Regeneration. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16020685. [PMID: 36676422 PMCID: PMC9866710 DOI: 10.3390/ma16020685] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/27/2022] [Accepted: 01/06/2023] [Indexed: 06/09/2023]
Abstract
Bone grafting is one of the most commonly performed treatments for bone healing or repair. Autografts, grafts from the same patient, are the most frequently used bone grafts because they can provide osteogenic cells and growth factors at the site of the implant with reduced risk of rejection or transfer of diseases. Nevertheless, this type of graft presents some drawbacks, such as pain, risk of infection, and limited availability. For this reason, synthetic bone grafts are among the main proposals in regenerative medicine. This branch of medicine is based on the development of new biomaterials with the goal of increasing bone healing capacity and, more specifically in dentistry, they aim at simultaneously preventing or eliminating bacterial infections. The use of fibers made of chitosan (CS) and hydroxyapatite (HA) loaded with an antibiotic (doxycycline, DX) and fabricated with the help of an injection pump is presented as a new strategy for improving maxillary bone regeneration. In vitro characterization of the DX controlled released from the fibers was quantified after mixing different amounts of HA (10-75%). The 1% CS concentration was stable, easy to manipulate and exhibited adequate cuttability and pH parameters. The hydroxyapatite concentration dictated the combined fast and controlled release profile of CSHA50DX. Our findings demonstrate that the CS-HA-DX complex may be a promising candidate graft material for enhancing bone tissue regeneration in dental clinical practice.
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Affiliation(s)
- Barbara Giordano-Kelhoffer
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya (UIC), 08017 Barcelona, Spain
- Faculty of Dentistry, Universitat Internacional de Catalunya (UIC), 08017 Barcelona, Spain
| | - Raquel Rodríguez-Gonzalez
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya (UIC), 08017 Barcelona, Spain
- Faculty of Medicine and Health Sciences, Basic Science Department Universitat Internacional de Catalunya (UIC), 08017 Barcelona, Spain
| | - Marina Perpiñan-Blasco
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya (UIC), 08017 Barcelona, Spain
- Faculty of Medicine and Health Sciences, Basic Science Department Universitat Internacional de Catalunya (UIC), 08017 Barcelona, Spain
| | - Jenifer O. Buitrago
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya (UIC), 08017 Barcelona, Spain
- Faculty of Medicine and Health Sciences, Basic Science Department Universitat Internacional de Catalunya (UIC), 08017 Barcelona, Spain
| | - Begoña M. Bosch
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya (UIC), 08017 Barcelona, Spain
- Faculty of Medicine and Health Sciences, Basic Science Department Universitat Internacional de Catalunya (UIC), 08017 Barcelona, Spain
| | - Roman A. Perez
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya (UIC), 08017 Barcelona, Spain
- Faculty of Medicine and Health Sciences, Basic Science Department Universitat Internacional de Catalunya (UIC), 08017 Barcelona, Spain
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11
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The design of multi-responsive nanohydrogel networks of chitosan for controlled drug delivery. Carbohydr Polym 2022; 298:120143. [DOI: 10.1016/j.carbpol.2022.120143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 09/17/2022] [Accepted: 09/20/2022] [Indexed: 11/19/2022]
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12
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Lu Z, Zou L, Zhou X, Huang D, Zhang Y. High strength chitosan hydrogels prepared from NaOH/urea aqueous solutions: The role of thermal gelling. Carbohydr Polym 2022; 297:120054. [DOI: 10.1016/j.carbpol.2022.120054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/22/2022] [Accepted: 08/26/2022] [Indexed: 11/02/2022]
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13
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Ren Y, Ailierken A, Zhao L, Lin Z, Jiang J, Li B, Wang J, Hua J, Tu Q. hUC-MSCs lyophilized powder loaded polysaccharide ulvan driven functional hydrogel for chronic diabetic wound healing. Carbohydr Polym 2022; 288:119404. [DOI: 10.1016/j.carbpol.2022.119404] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 02/12/2022] [Accepted: 03/21/2022] [Indexed: 11/02/2022]
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14
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Luo Y, Cui L, Zou L, Zhao Y, Chen L, Guan Y, Zhang Y. Mechanically strong and on-demand dissoluble chitosan hydrogels for wound dressing applications. Carbohydr Polym 2022; 294:119774. [DOI: 10.1016/j.carbpol.2022.119774] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/17/2022] [Accepted: 06/21/2022] [Indexed: 11/30/2022]
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15
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Liu CH, Jiang HT, Wang CH. Fabrication and characterization of a toughened spherical chitosan adsorbent only through physical crosslinking based on mechanism of Chain Rearrangement. RSC Adv 2022; 12:9179-9185. [PMID: 35424873 PMCID: PMC8985190 DOI: 10.1039/d1ra09438f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 02/22/2022] [Indexed: 01/15/2023] Open
Abstract
Chitosan extracted from natural products has gained tremendous attention in the field of adsorption and separation due to its inherent biocompatibility and potential applications. In this research, we synthesized a new type of spherical chitosan adsorbent (SCA) by controlling the mass transfer rate of the entanglement of the polymer chains in the recombination process. This SCA is a highly crystalline polymer material with outstanding mechanical strength, high adsorption capacity, a porous surface and suitable particle size distribution. The value of the sphericity of attrition of this SCA was 89.8%, which is the same as that of the commercial macroporous resin with a polystyrene matrix. The X-ray diffraction (XRD) patterns and differential scanning calorimetry (DSC) curves showed a significant change from powder to spherical structure and confirmed that the SCA is highly ordered and crystalline. Optical microscopy (OM) and scanning electron microscopy (SEM) demonstrated that the SCA was composed of a tightly stacked fiber structure, indicating the homogeneity of the polymerization. The porous structure of the surface provided a channel for mass transfer, which was indicated by a test of the ion exchange capacity and the adsorption performance of the SCA with Cu(ii) as the adsorbed subject. The adsorption capacity was higher than those of all reported non-composite chitosan materials. Therefore, we have successfully synthesized a completely green, nontoxic and environmentally friendly adsorbing resin equipped with excellent mechanical properties and adsorption capacity for future applications in many new fields.
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Affiliation(s)
- Cai-Hong Liu
- Key Laboratory of Functional Polymer Materials (Ministry of Education), College of Chemistry, Nankai University Tianjin 300071 P. R. China
| | - Hai-Tao Jiang
- Key Laboratory of Functional Polymer Materials (Ministry of Education), College of Chemistry, Nankai University Tianjin 300071 P. R. China
| | - Chun-Hong Wang
- Key Laboratory of Functional Polymer Materials (Ministry of Education), College of Chemistry, Nankai University Tianjin 300071 P. R. China
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16
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Wang J, Li K, Xu J, Liu M, Li P, Li X, Fan Y. A biomimetic hierarchical small intestinal submucosa-chitosan sponge/chitosan hydrogel scaffold with a micro/nano structure for dural repair. J Mater Chem B 2021; 9:7821-7834. [PMID: 34586141 DOI: 10.1039/d1tb00948f] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The dura mater is an essential barrier to protect the brain tissue and the dural defects caused by accidents can lead to serious complications. Various materials have been applied to dural repair, but it remains a challenge to perfectly match the structure and properties of the natural dura mater. Small intestinal submucosa has been developed for dural repair because of its excellent biocompatibility and biological activity, but its application is tremendously limited by the rapid degradation rate. Chitosan has also been broadly investigated in tissue repair, but the traditional chitosan hydrogels exhibit poor mechanical properties. A nanofiber chitosan hydrogel can be constructed based on an alkaline solvent, which is equipped with surprisingly high strength. Therefore, based on the bilayer structure of the natural dura mater, a biomimetic hierarchical small intestinal submucosa-chitosan sponge/chitosan hydrogel scaffold with a micro/nano structure was fabricated, which possessed a microporous structure in the upper sponge and a nanofiber structure in the lower hydrogel. The degradation rate was remarkably reduced compared with that of the small intestinal submucosa in the enzymatic degradation experiment in vitro. Meanwhile, the chitosan nanofibers brought high mechanical strength to the bilayer scaffold. Moreover, the hierarchical micro/nano structure and the active factors in the small intestinal submucosa have a fantastic effect on promoting the proliferation of fibroblasts and vascular endothelial cells. The bilayer scaffold showed good histocompatibility in the experiment of in vitro subcutaneous implantation in rats. Thus, the biomimetic hierarchical small intestinal submucosa-chitosan sponge/chitosan hydrogel scaffold with micro/nano structure simulates the structure of the natural dura mater and possesses properties with excellent performance, which has high practical value for dural repair.
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Affiliation(s)
- Jingxi Wang
- Key Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education Beijing Advanced Innovation Center for Biomedical Engineering School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China.
| | - Kun Li
- Key Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education Beijing Advanced Innovation Center for Biomedical Engineering School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China.
| | - Junwei Xu
- Key Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education Beijing Advanced Innovation Center for Biomedical Engineering School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China.
| | - Meili Liu
- Key Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education Beijing Advanced Innovation Center for Biomedical Engineering School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China.
| | - Ping Li
- Key Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education Beijing Advanced Innovation Center for Biomedical Engineering School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China.
| | - Xiaoming Li
- Key Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education Beijing Advanced Innovation Center for Biomedical Engineering School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China.
| | - Yubo Fan
- Key Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education Beijing Advanced Innovation Center for Biomedical Engineering School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China. .,School of Medical Science and Engineering, Beihang University, Beijing, 100191, China
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17
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Lemos TS, de Souza JF, Fajardo AR. Magnetic microspheres based on pectin coated by chitosan towards smart drug release. Carbohydr Polym 2021; 265:118013. [DOI: 10.1016/j.carbpol.2021.118013] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/27/2021] [Accepted: 03/26/2021] [Indexed: 12/12/2022]
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18
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Biologically Derived Gels for the Cleaning of Historical and Artistic Metal Heritage. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11083405] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In the general global rise of attention and research to seek greener attitudes, the field of cultural heritage (CH) makes no exception. In the last decades, an increasing number of sustainable and biologically based solutions have been proposed for the protection and care of artworks. Additionally, the safety of the target artwork and the operator must be kept as core goals. Within this scenario, new products and treatments should be explored and implemented in the common conservation praxes. Therefore, this review addressing metal heritage is aimed to report biologically derived gel formulations already proposed for this specific area as reliable tools for cleaning. Promising bio-gel-based protocols, still to be implemented in metal conservation, are also presented to promote their investigation by stakeholders in metal conservation. After an opening overview on the common practices for cleaning metallic surfaces in CH, the focus will be moved onto the potentialities of gel-alternatives and in particular of ones with a biological origin. In more detail, we displayed water-gels (i.e., hydrogels) and solvent-gels (i.e., organogels) together with particular attention to bio-solvents. The discussion is closed in light of the state-of-the-art and future perspectives.
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Abstract
The development of platinum group metal-free (PGM-free) electrocatalysts derived from cheap and environmentally friendly biomasses for oxygen reduction reaction (ORR) is a topic of relevant interest, particularly from the point of view of sustainability. Fe-nitrogen-doped carbon materials (Fe-N-C) have attracted particular interest as alternative to Pt-based materials, due to the high activity and selectivity of Fe-Nx active sites, the high availability and good tolerance to poisoning. Recently, many studies focused on developing synthetic strategies, which could transform N-containing biomasses into N-doped carbons. In this paper, chitosan was employed as a suitable N-containing biomass for preparing Fe-N-C catalyst in virtue of its high N content (7.1%) and unique chemical structure. Moreover, the major application of chitosan is based on its ability to strongly coordinate metal ions, a precondition for the formation of Fe-Nx active sites. The synthesis of Fe-N-C consists in a double step thermochemical conversion of a dried chitosan hydrogel. In acidic aqueous solution, the preparation of physical cross-linked hydrogel allows to obtain sophisticated organization, which assure an optimal mesoporosity before and after the pyrolysis. After the second thermal treatment at 900 °C, a highly graphitized material was obtained, which has been fully characterized in terms of textural, morphological and chemical properties. RRDE technique was used for understanding the activity and the selectivity of the material versus the ORR in 0.5 M H2SO4 electrolyte. Special attention was put in the determination of the active site density according to nitrite electrochemical reduction measurements. It was clearly established that the catalytic activity expressed as half wave potential linearly scales with the number of Fe-Nx sites. It was also established that the addition of the iron precursor after the first pyrolysis step leads to an increased activity due to both an increased number of active sites and of a hierarchical structure, which improves the access to active sites. At the same time, the increased graphitization degree, and a reduced density of pyrrolic nitrogen groups are helpful to increase the selectivity toward the 4e- ORR pathway.
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20
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Wang Y, Liu S, Yu W. Functionalized Graphene Oxide-Reinforced Chitosan Hydrogel as Biomimetic Dressing for Wound Healing. Macromol Biosci 2021; 21:e2000432. [PMID: 33599084 DOI: 10.1002/mabi.202000432] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/13/2021] [Indexed: 11/07/2022]
Abstract
A novel chitosan composite hydrogel by combining functionalized graphene oxide (CGO) is fabricated. The introduction of CGO significantly improves the mechanical property of CS hydrogel owing to the enhanced interaction between chitosan and CGO sheets. In comparison to the CS-GO composite hydrogel, the compressive stress of the CS-CGO composite hydrogel increases from 1.9 MPa at strain of 70.4% to 4.2 MPa at strain of 78.4%, the tensile stress and strain improve from 141.2 kPa and 134.6% to 300.2 kPa and 165.9%, respectively. An interconnected porous structure is formed in the CS-CGO composite hydrogel and the pore size decreases as the CGO loading increases, which is desirable in improving its mechanical property. Furthermore, the cytotoxicity tests indicate that the CS-CGO composite hydrogel possesses an excellent biocompatibility and can promote the adhesion and proliferation of fibroblasts. In vivo evaluation on full-thickness excision wounds in experimental rat shows that the CS-CGO composite hydrogel significantly accelerates wound healing, and the wound closure rate reaches up to 92.2% after 21 days. A feasible strategy to fabricate an enhanced chitosan composite hydrogel for application in wound healing is offered.
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Affiliation(s)
- Yanjie Wang
- Advanced Rheology Institute, Department of Polymer Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Sijun Liu
- Advanced Rheology Institute, Department of Polymer Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Wei Yu
- Advanced Rheology Institute, Department of Polymer Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
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21
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Pita-López ML, Fletes-Vargas G, Espinosa-Andrews H, Rodríguez-Rodríguez R. Physically cross-linked chitosan-based hydrogels for tissue engineering applications: A state-of-the-art review. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2020.110176] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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22
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Jin X, Jiang H, Zhang Z, Yao Y, Bao X, Hu Q. Ultrastretchable, self-adhesive, strain-sensitive and self-healing GO@DA/Alginate/P(AAc-co-AAm) multifunctional hydrogels via mussel-inspired chemistry. Carbohydr Polym 2020; 254:117316. [PMID: 33357879 DOI: 10.1016/j.carbpol.2020.117316] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/11/2020] [Accepted: 10/22/2020] [Indexed: 12/20/2022]
Abstract
For conductive hydrogels applied in biosensors, wearable devices and so forth, multifunctionality is an inevitable trend of development to meet various practical requirements and enhance human experience. Herein, inspired by nanocomposite, double-network (DN) and mussel chemistry, a new Graphene oxide@Dopamine/Alginate/Poly(acrylic acid-co-acrylamide) [GO@DA/Alginate/P(AAc-co-AAm)] hydrogel was fabricated through one-pot in-situ radical copolymerization. GO@DA nanofillers, prepared via GO confined DA polymerization, imparted the hydrogel with remarkable adhesiveness. Alginate/P(AAc-co-AAm) DN matrix, physically and chemically crosslinked by Fe3+ and N,N'-Methylenebisacrylamide, made hydrogels ultrastretchable, self-healing and biocompatible. With contents of DA and alginate accurately regulated, the tensile strength, elongation, adhesion strength and conductivity of the optimal hydrogel could reach 320.2 kPa, 1198 %, 36.9 kPa and 3.24 ± 0.12 S/m, respectively. What's more notable was that the synergistic integration of repeatable adhesiveness, strain sensitivity, use stability, self-healing ability and biocompatibility provided such hydrogels with tremendous possibility of practical application for strain sensors.
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Affiliation(s)
- Xiaoqiang Jin
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Institute of Biomedical Macromolecules, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Huihong Jiang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhiming Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Institute of Biomedical Macromolecules, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yuejun Yao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Institute of Biomedical Macromolecules, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xiaojiong Bao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Institute of Biomedical Macromolecules, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Qiaoling Hu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Institute of Biomedical Macromolecules, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
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23
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Abd El-Hady MM, Saeed SES. Antibacterial Properties and pH Sensitive Swelling of Insitu Formed Silver-Curcumin Nanocomposite Based Chitosan Hydrogel. Polymers (Basel) 2020; 12:polym12112451. [PMID: 33114003 PMCID: PMC7690720 DOI: 10.3390/polym12112451] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 10/15/2020] [Accepted: 10/21/2020] [Indexed: 11/18/2022] Open
Abstract
A simple method was used to prepare curcumin/silver nanocomposite based chitosan hydrogel. In an alkaline medium, chitosan and chitosan nanocomposite hydrogels were prepared using the physical crosslinking method. The prepared hydrogels were stable for a long period at room temperature. In one step, silver nanoparticles were prepared insitu using silver nitrate solution and curcumin oxide within the hydrogel network formation. In the meantime, curcumin compound served as both a reducing and stabilizing agent. The structure and surface morphology of nanocomposite hydrogels were characterized by FTIR, SEM, and EDX analysis confirmed the formation of silver nanoparticles within the hydrogel network. Moreover, Images of TEM showed a spherical shape of silver nanoparticles with an average size of 2–10 nm within the matrix of the hydrogel. The formation mechanism of nanocomposite based hydrogel was reported. Besides that, the effect of chitosan and silver nitrate concentrations were studied. The swelling capacity of the prepared nanocomposite hydrogels was also performed at different pH of 4, 7, and 9. From the experimental results, the swelling capacity of hydrogels depends on the concentrations of chitosan and silver nitrate. The prepared composite based hydrogel exceeds a higher swelling degree than chitosan hydrogels at low pH. The antibacterial activity of the nanocomposite hydrogels was also examined; the results showed that the prepared nanocomposite hydrogels outperformed the pure chitosan hydrogels. This shows them to be a promising material for the biomedical field as a wound dressing and drug release.
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Affiliation(s)
- M. M. Abd El-Hady
- Department of Physics, College of Science and Arts, Qassim University, Al Asyah, P.O. Box 6666, Buraidah 51452, Saudi Arabia
- National Research Centre, Textile Research Division, 33 El-Behoth Street, Dokki, P.O. Box 12622, Cairo 11461, Egypt
- Correspondence:
| | - S. El-Sayed Saeed
- Department of Chemistry, College of Science, Qassim University, Buraidah, Saudi Arabia P.O. Box 6666, Buraidah 51452, Saudi Arabia;
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24
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Ebhodaghe SO. Hydrogel – based biopolymers for regenerative medicine applications: a critical review. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1809409] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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25
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Jin X, Jiang H, Qiao F, Huang W, Bao X, Wang Z, Hu Q. Fabrication of
alginate‐P
(
SBMA‐
co
‐AAm
) hydrogels with ultrastretchability, strain sensitivity, self‐adhesiveness, biocompatibility, and self‐cleaning function for strain sensors. J Appl Polym Sci 2020. [DOI: 10.1002/app.49697] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xiaoqiang Jin
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Institute of Biomedical Macromolecules, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Huihong Jiang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Fenghui Qiao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Institute of Biomedical Macromolecules, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Weipin Huang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Institute of Biomedical Macromolecules, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Xiaojiong Bao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Institute of Biomedical Macromolecules, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Zhengke Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Institute of Biomedical Macromolecules, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Qiaoling Hu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Institute of Biomedical Macromolecules, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
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26
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Lopez-Barbosa N, Campaña AL, Cruz JC, Ornelas-Soto N, Osma JF. Enhanced Catalytic Dye Decolorization by Microencapsulation of Laccase from P. Sanguineus CS43 in Natural and Synthetic Polymers. Polymers (Basel) 2020; 12:polym12061353. [PMID: 32560036 PMCID: PMC7362170 DOI: 10.3390/polym12061353] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 05/27/2020] [Accepted: 05/29/2020] [Indexed: 12/24/2022] Open
Abstract
Polymeric microcapsules with the fungal laccase from Pycnoporus sanguineus CS43 may represent an attractive avenue for the removal or degradation of dyes from wastewaters. Microcapsules of alginate/chitosan (9.23 ± 0.12 µm) and poly(styrenesulfonate) (PSS) (9.25 ± 0.35 µm) were synthesized and subsequently tested for catalytic activity in the decolorization of the diazo dye Congo Red. Successful encapsulation into the materials was verified via confocal microscopy of labeled enzyme molecules. Laccase activity was measured as a function of time and the initial reaction rates were recovered for each preparation, showing up to sevenfold increase with respect to free laccase. The ability of substrates to diffuse through the pores of the microcapsules was evaluated with the aid of fluorescent dyes and confocal microscopy. pH and thermal stability were also measured for encapsulates, showing catalytic activity for pH values as low as 4 and temperatures of about 80 °C. Scanning electron microscope (SEM) analyses demonstrated the ability of PSS capsules to avoid accumulation of byproducts and, therefore, superior catalytic performance. This was corroborated by the direct observation of substrates diffusing in and out of the materials. Compared with our PSS preparation, alginate/chitosan microcapsules studied by others degrade 2.6 times more dye, albeit with a 135-fold increase in units of enzyme per mg of dye. Similarly, poly(vinyl) alcohol microcapsules from degrade 1.7 times more dye, despite an eightfold increase in units of enzyme per mg of dye. This could be potentially beneficial from the economic viewpoint as a significantly lower amount of enzyme might be needed for the same decolorization level achieved with similar encapsulated systems.
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Affiliation(s)
- Natalia Lopez-Barbosa
- Department of Electrical and Electronic Engineering, Universidad de los Andes, Cra. 1E No. 19a-40, Bogotá D.C. 111711, Colombia; (N.L.-B.); (A.L.C.)
- Department of Biomedical Engineering, Universidad de Los Andes, Cra. 1E No. 19a-40, Bogotá D.C. 111711, Colombia;
| | - Ana Lucía Campaña
- Department of Electrical and Electronic Engineering, Universidad de los Andes, Cra. 1E No. 19a-40, Bogotá D.C. 111711, Colombia; (N.L.-B.); (A.L.C.)
| | - Juan C. Cruz
- Department of Biomedical Engineering, Universidad de Los Andes, Cra. 1E No. 19a-40, Bogotá D.C. 111711, Colombia;
| | - Nancy Ornelas-Soto
- Laboratorio de Nanotecnología Ambiental, Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Monterrey 64849, Mexico;
| | - Johann F. Osma
- Department of Electrical and Electronic Engineering, Universidad de los Andes, Cra. 1E No. 19a-40, Bogotá D.C. 111711, Colombia; (N.L.-B.); (A.L.C.)
- Correspondence: ; Tel.: +57-1-339-4949
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27
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Learmonth DA, Costa PM, Veloso TR, Cunha CB, Cautela MP, Correia C, Vallejo MC, Sousa RA. Synthesis and biological evaluation of a bioinspired, tissue-adhesive gellan gum-based hydrogel designed for minimally invasive delivery and retention of chondrogenic cells. Biomater Sci 2020; 8:3697-3711. [PMID: 32483582 DOI: 10.1039/d0bm00286k] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A dopamine-modified, bioinspired gellan gum hydrogel (STM-148B) with improved physicochemical and biological characteristics, suitable for minimally invasive cell delivery and retention in the context of cartilage repair, is herein presented. STM-148B's putative game-changing design characteristics include a highly biocompatible, animal-free and chemically defined composition, reproducibility of manufacture and ease of formulation. STM-148B undergoes rapid ionic crossinking by physiologically relevant mono and divalent cations to form stable 3D hydrogels that possess excellent tissue adhesiveness, such that additional fixation aids are rendered superfluous. STM-148B hydrogels maintain viability of mammalian cells and further promote up-regulation of the expression of healthy chondrogenic extracellular matrix markers upon stimulation. STM-148B is currently undergoing pre-clinical safety and efficacy assessment as a medical device for cell delivery and retention focussing on regeneration of hyaline-like cartilage and may represent a valuable addition to the armamentarium of tissue-engineering therapies for treatment of focal cartilage lesions.
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Affiliation(s)
- David A Learmonth
- Stemmatters, Biotecnologia e Medicina Regenerativa SA, Parque de Ciência e Tecnologia Avepark, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.
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28
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Chitosan-based electrospun membranes: Effects of solution viscosity, coagulant and crosslinker. Carbohydr Polym 2020; 235:115976. [DOI: 10.1016/j.carbpol.2020.115976] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/05/2020] [Accepted: 02/10/2020] [Indexed: 12/14/2022]
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29
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Marques C, Som C, Schmutz M, Borges O, Borchard G. How the Lack of Chitosan Characterization Precludes Implementation of the Safe-by-Design Concept. Front Bioeng Biotechnol 2020; 8:165. [PMID: 32211394 PMCID: PMC7077258 DOI: 10.3389/fbioe.2020.00165] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 02/18/2020] [Indexed: 01/01/2023] Open
Abstract
Efficacy and safety of nanomedicines based on polymeric (bio)materials will benefit from a rational implementation of a Safe-by-Design (SbD) approach throughout their development. In order to achieve this goal, however, a standardization of preparation and characterization methods and their accurate reporting is needed. Focusing on the example of chitosan, a biopolymer derived from chitin and frequently used in drug and vaccine delivery vector preparation, this review discusses the challenges still to be met and overcome prior to a successful implementation of the SbD approach to the preparation of chitosan-based protein drug delivery systems.
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Affiliation(s)
- Cíntia Marques
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Geneva, Switzerland.,Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| | - Claudia Som
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Technology and Society Laboratory, St. Gallen, Switzerland
| | - Mélanie Schmutz
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Technology and Society Laboratory, St. Gallen, Switzerland
| | - Olga Borges
- Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal.,Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Gerrit Borchard
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Geneva, Switzerland
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30
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A Potential Polymeric Nanogel System for Effective Delivery of Chlorogenic Acid to Target Collagen-Induced Arthritis. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01421-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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31
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Novel Fe3O4 chitosan–quince-seed mucilage polymeric composite to enhance protein release. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-019-00967-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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32
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Effect of Transglutaminase Cross-Linking in Protein Isolates from a Mixture of Two Quinoa Varieties with Chitosan on the Physicochemical Properties of Edible Films. COATINGS 2019. [DOI: 10.3390/coatings9110736] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The growing demand for minimally processed foods with a long shelf life and environmentally friendly materials has forced industry to develop new technologies for food preservation and handling. The use of edible films has emerged as an alternative solution to this problem, and mixtures of carbohydrates and proteins, may be formulated to improve their properties. The objective of this work was to evaluate the effect of protein cross-linking with transglutaminase (TG) of two varieties of quinoa protein isolate (Chenopodium quinoa) [Willd (QW), and Pasankalla (QP)] on the physicochemical and barrier properties of edible films based on chitosan (CT)-quinoa protein. The evaluated properties were water vapor permeability (WVP), solubility, adsorption, roughness determined by atomic force microscopy, and the interactions among the main film components determined by Raman spectroscopy. The results indicated that TG interacted with lysine of QW and QP. CT:QW (1:5, w/w) showed the lowest solubility (14.02 ± 2.17% w/w). WVP varied with the composition of the mixture. The WVP of CT:quinoa protein ranged from 2.85 to 9.95 × 10−11 g cm Pa−1 cm−2 s−1 without TG, whereas adding TG reduced this range to 2.42–4.69 × 10−11 g cm Pa−1 cm−2 s−1. The addition of TG to CT:QP (1:10, w/w) reduced the film surface roughness from 8.0 ± 0.5 nm to 4.4 ± 0.3 nm. According to the sorption isotherm, the addition of TG to CT-QW films improved their stability [monolayer (Xm) = 0.13 ± 0.02 %]. Films with a higher amount of cross-linking showed the highest improvement in the evaluated physical properties, but interactions among proteins that were catalyzed by TG depended on the protein source and profile.
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High strength graphene oxide/chitosan composite screws with a steel-concrete structure. Carbohydr Polym 2019; 214:167-173. [DOI: 10.1016/j.carbpol.2019.03.039] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 01/28/2019] [Accepted: 03/12/2019] [Indexed: 12/19/2022]
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Fabrication of an Original Transparent PVA/Gelatin Hydrogel: In Vitro Antimicrobial Activity against Skin Pathogens. INT J POLYM SCI 2019. [DOI: 10.1155/2019/7651810] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The design of actively efficient and low-toxicity formulations against virulent bacterial strains causing skin infections remains a challenging task. The aim of the present study was to develop and evaluate in vitro a hydrogel impregnated with a known plant extract for topical applications against major skin bacteria. A poly(vinyl alcohol) (PVA)/gelatin hydrogel, namely HG, was prepared by esterification following the solution casting method. The gelling process was realized by cross-linking the synthetic polymer PVA and the biopolymer gelatin in the presence of hydrochloric acid (HCl). A crude extract of Nigella sativa seeds was then encapsulated in HG, and the resulting HGE was characterized morphologically (by Scanning Electron Microscopy (SEM)), structurally (by X-ray powder diffraction (XRD) and Fourier Transform Infrared (FTIR) spectroscopy), behaviorally (by swelling behavior), and biologically (by the agar well diffusion method). The results of HGE were compared to HG and HG impregnated with 10% acetic acid (HGAA). SEM sections of HGE revealed a dense and porous surface, suggesting a good hydrophilicity. X-ray diffractograms indicated that HGE and HG had a similar degree of crystallinity. FTIR spectra confirmed that esterification occurred between PVA and gelatin suggesting that the amine group is involved in the intercalation of the plant extract components in HG. Further, HGE was found to be as wettable and swellable as HG, suggesting a good biocompatibility. Eventually, HGE exerted a pronounced inhibitory effect against two major skin pathogens, the Gram-negative Pseudomonas aeruginosa and the Gram-positive Staphylococcus aureus, suggesting a good extract release. Taken together, the experimental data indicated that HGE might be a promising wound dressing.
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Rodríguez-Rodríguez R, Espinosa-Andrews H, Velasquillo-Martínez C, García-Carvajal ZY. Composite hydrogels based on gelatin, chitosan and polyvinyl alcohol to biomedical applications: a review. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2019.1581780] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Rogelio Rodríguez-Rodríguez
- Unidad Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Guadalajara, Jalisco, Mexico
| | - Hugo Espinosa-Andrews
- Unidad de Tecnología Alimentaria, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Zapopan, Jalisco, México
| | | | - Zaira Yunuen García-Carvajal
- Unidad Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Guadalajara, Jalisco, Mexico
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Chitosan based polymer/bioglass composites for tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 96:955-967. [DOI: 10.1016/j.msec.2018.12.026] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 11/09/2018] [Accepted: 12/09/2018] [Indexed: 01/12/2023]
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37
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Highly mineralized chitosan-based material with large size, gradient mineral distribution and hierarchical structure. Carbohydr Polym 2019; 208:336-344. [DOI: 10.1016/j.carbpol.2018.12.087] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 12/24/2018] [Accepted: 12/26/2018] [Indexed: 01/16/2023]
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Nutritional and Additive Uses of Chitin and Chitosan in the Food Industry. SUSTAINABLE AGRICULTURE REVIEWS 36 2019. [DOI: 10.1007/978-3-030-16581-9_1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Niu Q, Peng Q, Lu L, Fan S, Shao H, Zhang H, Wu R, Hsiao BS, Zhang Y. Single Molecular Layer of Silk Nanoribbon as Potential Basic Building Block of Silk Materials. ACS NANO 2018; 12:11860-11870. [PMID: 30407791 DOI: 10.1021/acsnano.8b03943] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this study, nascent silk nanoribbons (SNRs) with an average thickness of 0.4 nm were extracted from natural silkworm silk by partially dissolving degummed silk (DS) in sodium hydroxide (NaOH)/urea solution at -12 °C. In this gentle treatment, the solvent could not destroy the nanofibrillar structure completely, but the chosen conditions would influence the dimensions of resulting SNRs. Molecular dynamics simulations of silk models indicated that the potential of mean force required to break hydrogen bonds between silk fibroin chains was 40% larger than that of van der Waals interactions between β-sheet layers, allowing the exfoliating treatment. It was found that the resulting SNRs contained a single β-sheet layer and amorphous silk fibroin molecules, which could be considered as the basic building block of DS consisting of hierarchical structures. The demonstrated technique for extracting ultrathin SNRs having the height of a single β-sheet layer may provide a useful pathway for creating stronger and tougher silk-based materials and/or adding functionality and durability in materials for various applications. The hierarchical structure model based on SNRs may afford more insight into the structure and property relationship of fabricating silk-based materials.
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Affiliation(s)
- Qianqian Niu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-Dimension Materials , College of Materials Science and Engineering, Donghua University , Shanghai , 201620 , China
| | - Qingfa Peng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-Dimension Materials , College of Materials Science and Engineering, Donghua University , Shanghai , 201620 , China
| | - Li Lu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-Dimension Materials , College of Materials Science and Engineering, Donghua University , Shanghai , 201620 , China
| | - Suna Fan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-Dimension Materials , College of Materials Science and Engineering, Donghua University , Shanghai , 201620 , China
| | - Huili Shao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-Dimension Materials , College of Materials Science and Engineering, Donghua University , Shanghai , 201620 , China
| | - Huihui Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-Dimension Materials , College of Materials Science and Engineering, Donghua University , Shanghai , 201620 , China
| | - Rongliang Wu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-Dimension Materials , College of Materials Science and Engineering, Donghua University , Shanghai , 201620 , China
| | - Benjamin S Hsiao
- Department of Chemistry , Stony Brook University , Stony Brook , New York 11794-3400 , United States
| | - Yaopeng Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-Dimension Materials , College of Materials Science and Engineering, Donghua University , Shanghai , 201620 , China
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Karimi AR, Rostaminejad B, Rahimi L, Khodadadi A, Khanmohammadi H, Shahriari A. Chitosan hydrogels cross-linked with tris(2-(2-formylphenoxy)ethyl)amine: Swelling and drug delivery. Int J Biol Macromol 2018; 118:1863-1870. [DOI: 10.1016/j.ijbiomac.2018.07.037] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/08/2018] [Accepted: 07/10/2018] [Indexed: 11/26/2022]
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41
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Pujala RK, Schneijdenberg CTWM, van Blaaderen A, Bohidar HB. In-situ Observation of Hierarchical Self-Assembly Driven by Bicontinuous Gelation in Mixed Nanodisc Dispersions. Sci Rep 2018; 8:5589. [PMID: 29615709 PMCID: PMC5882853 DOI: 10.1038/s41598-018-23814-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 03/19/2018] [Indexed: 01/19/2023] Open
Abstract
The search for new functional soft materials with precise and reconfigurable structures at the nano and meso-scale is a major challenge as well as objective of the current science. Patchy colloids of different shapes and functionalities are considered important new building blocks of a bottom-up approach towards rational design of new soft materials largely governed by anisotropic interactions. Herein, we investigate the self-assembly, growth of hierarchical microstructures and aging dynamics of 2D nano-platelets of two different aspect ratios (Laponite ~25 and Montmorillonite ~250) which form gels with different porosity that is achieved by tuning their mixing ratios. Qualitative in situ real-space studies are carried out, including fluorescent confocal microscopy imaging of the bicontinuous gelation process or final states, which provides dynamic visualization of the self-organization. The bicontinuous gels exhibit a foam-like morphology having pores of a few micrometers in size that can be tuned by varying the mixing ratio of nanoplatelets. It is shown that this new class of clay gels has unique and tunable physical properties that will find potential applications in the development of low cost lithium ion batteries, nanocomposites and nuclear waste management.
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Affiliation(s)
- Ravi Kumar Pujala
- Soft Condensed Matter group, Debye Institute for Nanomaterials Science, Utrecht University, Princetonplein 5, 3584 CC, Utrecht, The Netherlands. .,School of Physics, University of Hyderabad, Hyderabad, 500046, India. .,Polymer and Biophysics Laboratory, School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
| | - C T W M Schneijdenberg
- Soft Condensed Matter group, Debye Institute for Nanomaterials Science, Utrecht University, Princetonplein 5, 3584 CC, Utrecht, The Netherlands
| | - Alfons van Blaaderen
- Soft Condensed Matter group, Debye Institute for Nanomaterials Science, Utrecht University, Princetonplein 5, 3584 CC, Utrecht, The Netherlands
| | - H B Bohidar
- Polymer and Biophysics Laboratory, School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.,Special Centre for Nanosciences, Jawaharlal Nehru University, New Delhi, 110067, India
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Enache AA, David L, Puaux JP, Banu I, Bozga G. Kinetics of chitosan coagulation from aqueous solutions. J Appl Polym Sci 2018. [DOI: 10.1002/app.46062] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Alin Alexandru Enache
- Laboratoire Ingénierie des Matériaux Polymères, Université Lyon 1, Centre National de la Recherche Scientifique Unité Mixte de Recherche (France) 5223; 15 Boulevard André Latarjet, Polytech Lyon F-69622 Villeurbanne Cedex France
- Department of Chemical and Biochemical Engineering; Politehnica University of Bucharest; 1 Polizu Street Bucharest 011061 Romania
| | - Laurent David
- Laboratoire Ingénierie des Matériaux Polymères, Université Lyon 1, Centre National de la Recherche Scientifique Unité Mixte de Recherche (France) 5223; 15 Boulevard André Latarjet, Polytech Lyon F-69622 Villeurbanne Cedex France
| | - Jean-Pierre Puaux
- Laboratoire Ingénierie des Matériaux Polymères, Université Lyon 1, Centre National de la Recherche Scientifique Unité Mixte de Recherche (France) 5223; 15 Boulevard André Latarjet, Polytech Lyon F-69622 Villeurbanne Cedex France
| | - Ionut Banu
- Department of Chemical and Biochemical Engineering; Politehnica University of Bucharest; 1 Polizu Street Bucharest 011061 Romania
| | - Grigore Bozga
- Department of Chemical and Biochemical Engineering; Politehnica University of Bucharest; 1 Polizu Street Bucharest 011061 Romania
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Sereni N, Enache A, Sudre G, Montembault A, Rochas C, Durand P, Perrard MH, Bozga G, Puaux JP, Delair T, David L. Dynamic Structuration of Physical Chitosan Hydrogels. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:12697-12707. [PMID: 29019693 DOI: 10.1021/acs.langmuir.7b02997] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We studied the microstructure of physical chitosan hydrogels formed by the neutralization of chitosan aqueous solutions highlighting the structural gradients within thick gels (up to a thickness of 16 mm). We explored a high polymer concentrations range (Cp ≥ 1.0% w/w) with different molar masses of chitosan and different concentrations of the coagulation agent. The effect of these processing parameters on the morphology was evaluated mainly through small-angle light scattering (SALS) measurements and confocal laser scanning microscopy (CLSM) observations. As a result, we reported that the microstructure is continuously evolving from the surface to the bulk, with mainly two structural transitions zones separating three types of hydrogels. The first zone (zone I) is located close to the surface of the hydrogel and constitutes a hard (entangled) layer formed under fast neutralization conditions. It is followed by a second zone (zone II) with a larger thickness (∼3-4 mm), where in some cases large pores or capillaries (diameter ∼10 μm) oriented parallel to the direction of the gel front are present. Deeper in the hydrogel (zone III), a finer oriented microstructure, with characteristic sizes lower than 2-3 μm, gradually replace the capillary morphology. However, this last bulk morphology cannot be regarded as structurally uniform because the size of small micrometer-range-oriented pores continuously increases as the distance to the surface of the hydrogel increases. These results could be rationalized through the effect of coagulation kinetics impacting the morphology obtained during neutralization.
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Affiliation(s)
- Nicolas Sereni
- Université de Lyon, Université Claude Bernard Lyon 1 , CNRS UMR 5223 Ingénierie des Matériaux Polymères IMP@Lyon1, 15 bd Latarjet, 69622 Villeurbanne Cedex, France
| | - Alin Enache
- Centre for Technology Transfer in the Process Industries, Department of Chemical Engineering, University POLITEHNICA of Bucharest , 1 Polizu Street, RO-011061 Bucharest, Romania
| | - Guillaume Sudre
- Université de Lyon, Université Claude Bernard Lyon 1 , CNRS UMR 5223 Ingénierie des Matériaux Polymères IMP@Lyon1, 15 bd Latarjet, 69622 Villeurbanne Cedex, France
| | - Alexandra Montembault
- Université de Lyon, Université Claude Bernard Lyon 1 , CNRS UMR 5223 Ingénierie des Matériaux Polymères IMP@Lyon1, 15 bd Latarjet, 69622 Villeurbanne Cedex, France
| | - Cyrille Rochas
- Université de Grenoble, Université Joseph Fourier , CERMAV-CNRS UPR5301 Centre de Recherches sur les Macromolécules Végétales, Boîte Postale 53, F-38041 Grenoble Cedex, France
| | - Philippe Durand
- Kallistem, Ecole Normale Supérieure de Lyon , 46 Allée d'Italie, 69364 Lyon Cedex 07, France
| | - Marie-Hélène Perrard
- Kallistem, Ecole Normale Supérieure de Lyon , 46 Allée d'Italie, 69364 Lyon Cedex 07, France
| | - Grigore Bozga
- Centre for Technology Transfer in the Process Industries, Department of Chemical Engineering, University POLITEHNICA of Bucharest , 1 Polizu Street, RO-011061 Bucharest, Romania
| | - Jean-Pierre Puaux
- Université de Lyon, Université Claude Bernard Lyon 1 , CNRS UMR 5223 Ingénierie des Matériaux Polymères IMP@Lyon1, 15 bd Latarjet, 69622 Villeurbanne Cedex, France
| | - Thierry Delair
- Université de Lyon, Université Claude Bernard Lyon 1 , CNRS UMR 5223 Ingénierie des Matériaux Polymères IMP@Lyon1, 15 bd Latarjet, 69622 Villeurbanne Cedex, France
| | - Laurent David
- Université de Lyon, Université Claude Bernard Lyon 1 , CNRS UMR 5223 Ingénierie des Matériaux Polymères IMP@Lyon1, 15 bd Latarjet, 69622 Villeurbanne Cedex, France
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Liu Y, Shen W, Li Q, Shu J, Gao L, Ma M, Wang W, Cui H. Firefly-mimicking intensive and long-lasting chemiluminescence hydrogels. Nat Commun 2017; 8:1003. [PMID: 29042537 PMCID: PMC5645356 DOI: 10.1038/s41467-017-01101-6] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Accepted: 08/15/2017] [Indexed: 01/23/2023] Open
Abstract
Most known chemiluminescence (CL) reactions exhibit flash-type light emission. Great efforts have been devoted to the development of CL systems that emit light with high intensity and long-lasting time. However, a long-lasting CL system that can last for hundreds of hours is yet-to-be-demonstrated. Here we show firefly-mimicking intensive and long-lasting CL hydrogels consisting of chitosan, CL reagent N-(4-aminobutyl)-N-ethylisoluminol (ABEI) and catalyst Co2+. The light emission is even visible to naked eyes and lasts for over 150 h when the hydrogels are mixed with H2O2. This is attributed to slow-diffusion-controlled heterogeneous catalysis. Co2+ located at the skeleton of the hydrogels as an active site catalyzes the decomposition of slowly diffusing H2O2, followed by the reaction with ABEI to generate intensive and long-lasting CL. This mimics firefly bioluminescence system in terms of intensity, duration time and catalytic characteristic, which is of potential applications in cold light sources, bioassays, biosensors and biological imaging.Great efforts have been devoted to the development of chemiluminescence systems that emit light with high intensity over long periods of time. Here the authors show, firefly-mimicking intensive and long-lasting chemiluminescence hydrogels consisting of chitosan, N-(4-aminobutyl)-N-ethylisoluminol (ABEI) and catalyst Co2+.
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Affiliation(s)
- Yating Liu
- CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Wen Shen
- CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Qi Li
- CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Jiangnan Shu
- CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Lingfeng Gao
- CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Mingming Ma
- CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Wei Wang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing, Jiangsu, 210093, China
| | - Hua Cui
- CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China.
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Wang H, Qian J, Ding F. Recent advances in engineered chitosan-based nanogels for biomedical applications. J Mater Chem B 2017; 5:6986-7007. [DOI: 10.1039/c7tb01624g] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recent progress in the preparation and biomedical applications of engineered chitosan-based nanogels has been comprehensively reviewed.
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Affiliation(s)
- Hongxia Wang
- School of Printing and Packaging, Wuhan University
- Wuhan 430072
- P. R. China
| | - Jun Qian
- School of Printing and Packaging, Wuhan University
- Wuhan 430072
- P. R. China
| | - Fuyuan Ding
- School of Printing and Packaging, Wuhan University
- Wuhan 430072
- P. R. China
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Wang Z, Yang L, Liu Y, Huang X, Qiao F, Qin W, Hu Q, Tang BZ. Ultra long-term cellular tracing by a fluorescent AIE bioconjugate with good water solubility over a wide pH range. J Mater Chem B 2017; 5:4981-4987. [DOI: 10.1039/c7tb00861a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
TPE-NSCS, which displayed an AIE effect, could be solubilized in water over a wide pH range, and used in cell tracing for 30 passages.
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Affiliation(s)
- Zhengke Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Ling Yang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Yalan Liu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Xiaofei Huang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Fenghui Qiao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Wei Qin
- Department of Chemistry
- Hong Kong University of Science and Technology
- Clear Water Bay
- China
| | - Qiaoling Hu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Ben Zhong Tang
- Department of Chemistry
- Hong Kong University of Science and Technology
- Clear Water Bay
- China
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Nie J, Wang Z, Zhou Y, Wang S, Li H, Zhao H, Qin A, Hu Q, Sun JZ, Tang BZ. High strength chitosan rod reinforced by non-covalent functionalized multiwalled carbon nanotubes via an in situ precipitation method. RSC Adv 2016. [DOI: 10.1039/c6ra20413a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
High strength CS/MWCNTs composite rods preparedvia in situprecipitation & PaPA functionalization, with a 3D sophisticated structure and uniformly dispersed MWCNTs.
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