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Ciarlantini C, Lacolla E, Francolini I, Fernández-García M, Muñoz-Núñez C, Muñoz-Bonilla A, Piozzi A. Development of Antioxidant and Antimicrobial Membranes Based on Functionalized and Crosslinked Chitosan for Tissue Regeneration. Int J Mol Sci 2024; 25:1961. [PMID: 38396645 PMCID: PMC10888599 DOI: 10.3390/ijms25041961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 01/26/2024] [Accepted: 02/02/2024] [Indexed: 02/25/2024] Open
Abstract
Tissue engineering is an interdisciplinary field that develops new methods to enhance the regeneration of damaged tissues, including those of wounds. Polymer systems containing bioactive molecules can play an important role in accelerating tissue regeneration, mitigating inflammation process, and fighting bacterial infection. Chitosan (CS) has attracted much attention regarding its use in wound healing system fabrication thanks to its biocompatibility, biodegradability, and the presence of functional groups in its structure. In this work, bioactive chitosan-based membranes were obtained by both chemical and physical modifications of the polymer with glycidyl methacrylate and glycerol (GLY), respectively. The most suitable GLY concentration to obtain wound healing systems with good elongation at break, a good water vapor transmission rate (WVTR), and good wettability values was 20% (w/w). Afterwards, the membranes were crosslinked with different concentrations of ethylene glycol dimethacrylate (EGDMA). By using a concentration of 0.05 mM EGDMA, membranes with a contact angle and WVTR values suitable for the application were obtained. To make the system bioactive, 3,4-dihydrocinnamic acid (HCAF) was introduced into the membranes, either by imbibition or chemical reaction, using laccase as a catalyst. Thermal and mechanical analyses confirmed the formation of a cohesive network, which limited the plasticizing effect of GLY, particularly when HCAF was chemically bound. The HCAF-imbibed membrane showed a good antioxidant and antimicrobial activity, highlighting the potential of this system for the treatment of wound healing.
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Affiliation(s)
- Clarissa Ciarlantini
- Department of Chemistry, Sapienza University of Rome, Piazzale A. Moro, 5, 00185 Rome, Italy; (C.C.); (E.L.); (I.F.)
| | - Elisabetta Lacolla
- Department of Chemistry, Sapienza University of Rome, Piazzale A. Moro, 5, 00185 Rome, Italy; (C.C.); (E.L.); (I.F.)
| | - Iolanda Francolini
- Department of Chemistry, Sapienza University of Rome, Piazzale A. Moro, 5, 00185 Rome, Italy; (C.C.); (E.L.); (I.F.)
| | - Marta Fernández-García
- Institute of Polymer Science and Technology (ICTP-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain; (M.F.-G.); (C.M.-N.); (A.M.-B.)
- Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy-Spanish National Research Council (SusPlast-CSIC), 28006 Madrid, Spain
| | - Carolina Muñoz-Núñez
- Institute of Polymer Science and Technology (ICTP-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain; (M.F.-G.); (C.M.-N.); (A.M.-B.)
| | - Alexandra Muñoz-Bonilla
- Institute of Polymer Science and Technology (ICTP-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain; (M.F.-G.); (C.M.-N.); (A.M.-B.)
| | - Antonella Piozzi
- Department of Chemistry, Sapienza University of Rome, Piazzale A. Moro, 5, 00185 Rome, Italy; (C.C.); (E.L.); (I.F.)
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Qin X, Lei S, Yang K, Xie W, Wang J. Green synthetic sodium alginate-glycerol-MXene nanocomposite membrane with excellent flexibility and mineralization ability for guided bone regeneration. J Mech Behav Biomed Mater 2024; 150:106336. [PMID: 38169210 DOI: 10.1016/j.jmbbm.2023.106336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/14/2023] [Accepted: 12/16/2023] [Indexed: 01/05/2024]
Abstract
Developing a novel bioactive material as a barrier membrane for guided bone regeneration (GBR) surgery remains challenging. As a new member of two-dimensional (2D) material family, MXene is a promising candidate component for barrier membranes due to its high specific surface area and osteogenic differentiation ability. In this work, a green and simple SA/glycerol/MXene (SgM) composite membrane was prepared via solvent casting method by using sodium alginate (SA) and MXene (M) as raw materials while employing glycerol (g) as a plasticizer. The addition of glycerol significantly increased the elongation at the break of SA from 10%-20% to 240%-360%, while the introduction of MXene promoted the deposition of calcium and phosphorus to form hydroxyapatite. At the same time, the roughness of the SgM composite membrane is apparently improved, which is conducive to cell adhesion and proliferation. This work provides a basis for further research on SgM composite membrane as GBR membrane for the treatment of bone defects.
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Affiliation(s)
- Xiaoli Qin
- School of Stomatology of Lanzhou University, Lanzhou, 730070, China; Lanzhou University Second Hospital, Lanzhou, 730000, China; State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Siqi Lei
- School of Stomatology of Lanzhou University, Lanzhou, 730070, China; Lanzhou University Second Hospital, Lanzhou, 730000, China; State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Kefan Yang
- School of Stomatology of Lanzhou University, Lanzhou, 730070, China; Lanzhou University Second Hospital, Lanzhou, 730000, China; State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Weibo Xie
- School of Stomatology of Lanzhou University, Lanzhou, 730070, China; Lanzhou University Second Hospital, Lanzhou, 730000, China.
| | - Jinqing Wang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.
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3
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Vinceković M, Jurić S, Vlahoviček-Kahlina K, Martinko K, Šegota S, Marijan M, Krčelić A, Svečnjak L, Majdak M, Nemet I, Rončević S, Rezić I. Novel Zinc/Silver Ions-Loaded Alginate/Chitosan Microparticles Antifungal Activity against Botrytis cinerea. Polymers (Basel) 2023; 15:4359. [PMID: 38006083 PMCID: PMC10674643 DOI: 10.3390/polym15224359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Addressing the growing need for environmentally friendly fungicides in agriculture, this study explored the potential of biopolymer microparticles loaded with metal ions as a novel approach to combat fungal pathogens. Novel alginate microspheres and chitosan/alginate microcapsules loaded with zinc or with zinc and silver ions were prepared and characterized (microparticle size, morphology, topography, encapsulation efficiency, loading capacity, and swelling behavior). Investigation of molecular interactions in microparticles using FTIR-ATR spectroscopy exhibited complex interactions between all constituents. Fitting to the simple Korsmeyer-Peppas empirical model revealed the rate-controlling mechanism of metal ions release from microparticles is Fickian diffusion. Lower values of the release constant k imply a slower release rate of Zn2+ or Ag+ ions from microcapsules compared to that of microspheres. The antimicrobial potential of the new formulations against the fungus Botrytis cinerea was evaluated. When subjected to tests against the fungus, microspheres exhibited superior antifungal activity especially those loaded with both zinc and silver ions, reducing fungal growth up to 98.9% and altering the hyphal structures. Due to the slower release of metal ions, the microcapsule formulations seem suitable for plant protection throughout the growing season. The results showed the potential of these novel microparticles as powerful fungicides in agriculture.
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Affiliation(s)
- Marko Vinceković
- Department of Chemistry, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia; (S.J.); (K.V.-K.); (A.K.)
| | - Slaven Jurić
- Department of Chemistry, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia; (S.J.); (K.V.-K.); (A.K.)
| | - Kristina Vlahoviček-Kahlina
- Department of Chemistry, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia; (S.J.); (K.V.-K.); (A.K.)
| | - Katarina Martinko
- Department of Plant Pathology, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia;
| | - Suzana Šegota
- Laboratory for Biocolloids and Surface Chemistry, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia;
| | - Marijan Marijan
- Department of Quality Control, The Institute of Immunology, Rockefellerova 2, 10000 Zagreb, Croatia;
| | - Ana Krčelić
- Department of Chemistry, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia; (S.J.); (K.V.-K.); (A.K.)
| | - Lidija Svečnjak
- Department of Fisheries, Apiculture, Wildlife Management and Special Zoology, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia;
| | - Mislav Majdak
- Department of Applied Chemistry, University of Textile Technology, Prilaz Baruna Filipovića 28a, 10000 Zagreb, Croatia;
| | - Ivan Nemet
- Department of Analytical Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia; (I.N.); (S.R.)
| | - Sanda Rončević
- Department of Analytical Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia; (I.N.); (S.R.)
| | - Iva Rezić
- Department of Applied Chemistry, University of Textile Technology, Prilaz Baruna Filipovića 28a, 10000 Zagreb, Croatia;
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Shao Q, Zhang W, Qi J, Liao H, Guo H, Tan X, Chi B. Laponite stabilized endogenous antibacterial hydrogel as wet-tissue adhesive. J Mech Behav Biomed Mater 2023; 145:106009. [PMID: 37423008 DOI: 10.1016/j.jmbbm.2023.106009] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/03/2023] [Accepted: 07/03/2023] [Indexed: 07/11/2023]
Abstract
Clinical adhesives for suture-less wound closure remain the problem of poor biocompatibility, weak adhesive strength, and no endogenous antibacterial ability. Here, we designed a novel antibacterial hydrogel (CP-Lap hydrogel) consisting of chitosan and ε-polylysine after being modified with gallic acid (pyrogallol structure). The hydrogel was crosslinked by glutaraldehyde and Laponite via Schiff base and dynamic Laponite-pyrogallol interaction, free from heavy metal and oxidants. Given its dual crosslinking feature, the CP-Lap hydrogel exhibited adequate mechanical strength (150-240 kPa) and demonstrated swelling and degradation resistance. For a typical lap shear test with pigskin, the apparent adhesion strength of the CP-Lap hydrogel could be enhanced to ∼30 kPa benefiting from the O2 blocking effect provided by nanoconfinement space between Laponite. In addition, the hydrogel showed effective antibacterial properties and excellent biocompatibility. The results indicated that this hydrogel has great potential for wound-closing bioadhesives to avoid chronic infections and further harm.
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Affiliation(s)
- Qing Shao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, 211816, China
| | - Wenjie Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, 211816, China
| | - Jingjie Qi
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, 211816, China
| | - Huiyun Liao
- China Tobacco Jiangsu Industrial Co., Ltd., Nanjing, 210019, China
| | - Hao Guo
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, 211816, China
| | - Xiaoyan Tan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, 211816, China; National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing, 211816, China
| | - Bo Chi
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, 211816, China; National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing, 211816, China.
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Preparation of inhalable N-acetylcysteine-loaded magnetite chitosan microparticles for nitrate adsorption in particulate matter. Int J Pharm 2022; 630:122454. [PMID: 36455755 DOI: 10.1016/j.ijpharm.2022.122454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 11/15/2022] [Accepted: 11/24/2022] [Indexed: 11/29/2022]
Abstract
Airborne particulate matter has been designated as a class 1 carcinogen by the World Health Organization. Nitrate is a toxic substance that accounts for a large proportion of particulate matter, and nitrate toxicity has long been reported. In this study, we aimed to optimize the adsorption and removal of particulate matter containing nitrate for effective elimination by the lungs. To this end, particles were designed to optimize the inhalation and removal efficiencies. These particles were prepared as chitosan-based particles containing N-acetylcysteine by using emulsion diffusion methods. Chitosan adsorbs nitrate, while N-acetylcysteine dissolves mucus. This removal mechanism has been found to occur in various in vitro models that mimic respiratory environments and in vivo models. In particular, the removal of exogenous substances, such as particulate matter, by the motility of respiratory cilia through mucolytic effect was investigated. This new approach for the adsorption and elimination of toxic substances entering the lungs represents an alternative defense mechanism against exposure to nitrates from air pollution.
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Yeh YY, Tsai YT, Wu CY, Tu LH, Bai MY, Yeh YC. The role of aldehyde-functionalized crosslinkers on the property of chitosan hydrogels. Macromol Biosci 2022; 22:e2100477. [PMID: 35103401 DOI: 10.1002/mabi.202100477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 01/22/2022] [Indexed: 11/10/2022]
Abstract
XXXX This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Ying-Yu Yeh
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, 10617, Taiwan
| | - Yu-Ting Tsai
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, 10617, Taiwan
| | - Chun-Yu Wu
- Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei, 10617, Taiwan
| | - Ling-Hsien Tu
- Department of Chemistry, National Taiwan Normal University, Taipei, 11677, Taiwan
| | - Meng-Yi Bai
- Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei, 10617, Taiwan.,Biomedical Engineering Program, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, 10617, Taiwan.,Adjunct Appointment to the Department of Biomedical Engineering, National Defense Medical Center, Taipei, 11490, Taiwan
| | - Yi-Cheun Yeh
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, 10617, Taiwan
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7
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Lee MH, Lee DR, Chon JW, Chung DJ. Hemostatic Patches Based on Crosslinked Chitosan Films Applied in Interventional Procedures. Polymers (Basel) 2021; 13:2402. [PMID: 34372004 PMCID: PMC8348421 DOI: 10.3390/polym13152402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/13/2021] [Accepted: 07/15/2021] [Indexed: 11/17/2022] Open
Abstract
In this study, we manufactured biocompatible hemostatic crosslinked chitosan (CS) patches and analyzed their physicochemical and biological properties for femoral arterial puncture applications. CS is a representative hemostatic material but has some drawbacks, such as swelling, shrinkage, and brittleness. Thus, it was crosslinked via a 1-ethyl-3-(3-dimethyl aminopropyl) carbodiimide (EDC)/N-hydroxysuccinimide (NHS) coupling reaction and a nucleophilic addition reaction with citric acid (CA), glutaraldehyde (GTA), and genipin (GP) to remedy its shortcomings. The CSCA (crosslinked CS with CA/EDC), CSGTA (crosslinked CS with GTA), and CSG (crosslinked CS with GP) films showed low swelling degrees and good mechanical properties (excluding CSCA) compared with those of neat CS films. Additionally, every crosslinked CS film coated with thrombin (TB-CS) showed enhanced hemostatic ability in the whole blood clotting and activated partial thromboplastin time tests. Furthermore, the CSCA, CSGTA, and CSGP were nontoxic in an in vitro cell cytotoxicity test (3-(4,5-dimethylthiazolyl-2)-2,5-diphenyltetrazolium bromide assay) using L-929 mouse fibroblasts cells.
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Affiliation(s)
| | | | | | - Dong June Chung
- Department of Polymer Science and Engineering, Sungkyunkwan University, Suwon 16419, Korea; (M.H.L.); (D.R.L.); (J.W.C.)
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Pemble OJ, Bardosova M, Povey IM, Pemble ME. A Slot-Die Technique for the Preparation of Continuous, High-Area, Chitosan-Based Thin Films. Polymers (Basel) 2021; 13:polym13101566. [PMID: 34068282 PMCID: PMC8153309 DOI: 10.3390/polym13101566] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/03/2021] [Accepted: 05/08/2021] [Indexed: 02/03/2023] Open
Abstract
Chitosan-based films have a diverse range of potential applications but are currently limited in terms of commercial use due to a lack of methods specifically designed to produce thin films in high volumes. To address this limitation directly, hydrogels prepared from chitosan, chitosan-tetraethoxy silane, also known as tetraethyl orthosilicate (TEOS) and chitosan-glutaraldehyde have been used to prepare continuous thin films using a slot-die technique which is described in detail. By way of preliminary analysis of the resulting films for comparison purposes with films made by other methods, the mechanical strength of the films produced was assessed. It was found that as expected, the hybrid films made with TEOS and glutaraldehyde both show a higher yield strength than the films made with chitosan alone. In all cases, the mechanical properties of the films were found to compare very favorably with similar measurements reported in the literature. In order to assess the possible influence of the direction in which the hydrogel passes through the slot-die on the mechanical properties of the films, testing was performed on plain chitosan samples cut in a direction parallel to the direction of travel and perpendicular to this direction. It was found that there was no evidence of any mechanical anisotropy induced by the slot die process. The examples presented here serve to illustrate how the slot-die approach may be used to create high-volume, high-area chitosan-based films cheaply and rapidly. It is suggested that an approach of the type described here may facilitate the use of chitosan-based films for a wide range of important applications.
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Affiliation(s)
- Oliver J. Pemble
- Tyndall National Institute, University College Cork, Cork, Ireland; (O.J.P.); (M.B.); (I.M.P.)
- School of Chemistry, University College Cork, Cork, Ireland
| | - Maria Bardosova
- Tyndall National Institute, University College Cork, Cork, Ireland; (O.J.P.); (M.B.); (I.M.P.)
| | - Ian M. Povey
- Tyndall National Institute, University College Cork, Cork, Ireland; (O.J.P.); (M.B.); (I.M.P.)
| | - Martyn E. Pemble
- Tyndall National Institute, University College Cork, Cork, Ireland; (O.J.P.); (M.B.); (I.M.P.)
- School of Chemistry, University College Cork, Cork, Ireland
- Correspondence:
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Nunes YL, de Menezes FL, de Sousa IG, Cavalcante ALG, Cavalcante FTT, da Silva Moreira K, de Oliveira ALB, Mota GF, da Silva Souza JE, de Aguiar Falcão IR, Rocha TG, Valério RBR, Fechine PBA, de Souza MCM, Dos Santos JCS. Chemical and physical Chitosan modification for designing enzymatic industrial biocatalysts: How to choose the best strategy? Int J Biol Macromol 2021; 181:1124-1170. [PMID: 33864867 DOI: 10.1016/j.ijbiomac.2021.04.004] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/02/2021] [Accepted: 04/03/2021] [Indexed: 12/16/2022]
Abstract
Chitosan is one of the most abundant natural polymer worldwide, and due to its inherent characteristics, its use in industrial processes has been extensively explored. Because it is biodegradable, biocompatible, non-toxic, hydrophilic, cheap, and has good physical-chemical stability, it is seen as an excellent alternative for the replacement of synthetic materials in the search for more sustainable production methodologies. Thus being, a possible biotechnological application of Chitosan is as a direct support for enzyme immobilization. However, its applicability is quite specific, and to overcome this issue, alternative pretreatments are required, such as chemical and physical modifications to its structure, enabling its use in a wider array of applications. This review aims to present the topic in detail, by exploring and discussing methods of employment of Chitosan in enzymatic immobilization processes with various enzymes, presenting its advantages and disadvantages, as well as listing possible chemical modifications and combinations with other compounds for formulating an ideal support for this purpose. First, we will present Chitosan emphasizing its characteristics that allow its use as enzyme support. Furthermore, we will discuss possible physicochemical modifications that can be made to Chitosan, mentioning the improvements obtained in each process. These discussions will enable a comprehensive comparison between, and an informed choice of, the best technologies concerning enzyme immobilization and the application conditions of the biocatalyst.
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Affiliation(s)
- Yale Luck Nunes
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Campus do Pici, Bloco 940, CEP 60455760 Fortaleza, CE, Brazil
| | - Fernando Lima de Menezes
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Campus do Pici, Bloco 940, CEP 60455760 Fortaleza, CE, Brazil
| | - Isamayra Germano de Sousa
- Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção CEP 62790970, CE, Brazil
| | - Antônio Luthierre Gama Cavalcante
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Campus do Pici, Bloco 940, CEP 60455760 Fortaleza, CE, Brazil
| | | | - Katerine da Silva Moreira
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Bloco 709, Fortaleza CEP 60455760, CE, Brazil
| | - André Luiz Barros de Oliveira
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Bloco 709, Fortaleza CEP 60455760, CE, Brazil
| | - Gabrielly Ferreira Mota
- Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção CEP 62790970, CE, Brazil
| | - José Erick da Silva Souza
- Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção CEP 62790970, CE, Brazil
| | - Italo Rafael de Aguiar Falcão
- Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção CEP 62790970, CE, Brazil
| | - Thales Guimaraes Rocha
- Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção CEP 62790970, CE, Brazil
| | - Roberta Bussons Rodrigues Valério
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Campus do Pici, Bloco 940, CEP 60455760 Fortaleza, CE, Brazil
| | - Pierre Basílio Almeida Fechine
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Campus do Pici, Bloco 940, CEP 60455760 Fortaleza, CE, Brazil
| | - Maria Cristiane Martins de Souza
- Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção CEP 62790970, CE, Brazil
| | - José C S Dos Santos
- Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção CEP 62790970, CE, Brazil; Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Bloco 709, Fortaleza CEP 60455760, CE, Brazil.
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Sethi A, Ahmad M, Huma T, Khalid I, Ahmad I. Evaluation of Low Molecular Weight Cross Linked Chitosan Nanoparticles, to Enhance the Bioavailability of 5-Flourouracil. Dose Response 2021; 19:15593258211025353. [PMID: 34377107 PMCID: PMC8323436 DOI: 10.1177/15593258211025353] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 05/20/2021] [Accepted: 05/20/2021] [Indexed: 11/23/2022] Open
Abstract
The present study aimed to formulate 5-fluorouracil loaded cross linked chitosan nanoparticles based on chemical cross-linking of low molecular weight chitosan with glutaraldehyde by reverse micelles technique as 5-FU is less hydrophobic, relatively potent, has a shorter half-life, is rapidly metabolized, less tolerated, and has low oral bioavailability; therefore, we aimed to formulate potential nanocarriers of 5-FU for efficient drug delivery to specific targeted areas of action, reduce oral toxicity, improve tolerability and therapeutic outcomes of 5-FU, in a restricted fashion to enhance the bioavailability of 5-FU. Nanoparticles were formulated by the reverse micelle method based on the chemical cross-linking of glutaraldehyde (25% aqueous solution) into a w/o emulsion in different ratios. LMWCH-NPs were characterized for post-formulation parameters by mean particle size, zeta potential, %age yield, loading/entrapment efficiency, Fourier transform infrared spectroscopy (FTIR), DSC/TGA, TEM, PXRD, drug release at pH 1.2, and pH 7.4. 5-FU loaded NPs showed a size range (198 nm-200 nm) and zeta potential (-39mV to -41mV), which ensured mechanical stability and increased retention time in blood vessels by the sustained release properties of biodegradable nanocarrier drug delivery systems. % age yield showed the range 92% to 96% while % LC ranged 2.0% to 3.4% and %EE ranged 40% to 43%. The TEM images showed spherical nanoparticles. FTIR revealed the compatibility between the drug and the cross-linked polymer. DSC/TGA ensured the thermal stability of the drug, while the solid-state stability of the drug-loaded cross-linked chitosan nanoparticles was evaluated by powder X-ray diffraction (PXRD) analysis. Drug release studies were performed using the dialysis bag technique at both pH (1.2 and 7.4) to mimic the gastrointestinal tract. Highly stable NPs displayed targeted release in phosphate buffer pH 7.4 at 37°C. Fickian diffusion was the predominant release with an R2 value of 0.9975-0.9973-and an N value 0.45-0.53. Prepared nanoparticles are inert, biodegradable, and biocompatible drug delivery systems for sustained release of 5-FU with maximum therapeutic efficacy and bioavailability.
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Affiliation(s)
- Aisha Sethi
- Faculty of Pharmacy and Alternative Medicines, The Islamia
University of Bahawalpur, Punjab, Pakistan
- Faculty of Pharmaceutical Sciences, Government College University,
Faisalabad, Punjab, Pakistan
| | - Mahmood Ahmad
- Faculty of Pharmacy and Alternative Medicines, The Islamia
University of Bahawalpur, Punjab, Pakistan
| | | | - Ikrima Khalid
- Faculty of Pharmaceutical Sciences, Government College University,
Faisalabad, Punjab, Pakistan
| | - Imtiaz Ahmad
- Faculty of Pharmacy and Alternative Medicines, The Islamia
University of Bahawalpur, Punjab, Pakistan
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11
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Saiful S, Ajrina M, Wibisono Y, Marlina M. Development of Chitosan/Starch-Based Forward Osmosis Water Filtration Bags for Emergency Water Supply. MEMBRANES 2020; 10:membranes10120414. [PMID: 33322244 PMCID: PMC7763897 DOI: 10.3390/membranes10120414] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/07/2020] [Accepted: 12/08/2020] [Indexed: 12/18/2022]
Abstract
A forward osmosis (FO) membrane was developed from a mixture of chitosan and Dioscorea hispida starch, cross-linked using glutaraldehyde. The cross-linked chitosan/starch membrane was revealed to have high mechanical properties with an asymmetric structure. The prepared membrane’s performance was investigated as an FO filter assembled in a polypropylene water filter bag and aluminum foil plastic. In order to study the FO process, brackish water was used as a feed solution, drawn using three types of solution (fructose, sucrose, and fructose/sucrose mixture, each with 3 M concentration). The maximum water flux (5.75 L/m2 h) was achieved using 3 M sucrose. The cross-linked membrane restrained the ions in the feed with a rejection factor value close to 100%. The water quality parameters were evaluated for the physical, chemical, and biological criteria, such as pH, salinity, conductivity, total dissolved solids (TDS), heavy metals, and Escherichia coli content. The water quality parameters for the FO-processed water met that set by the World Health Organization for drinking water. FO filter bags with cross-linked chitosan/starch membranes can be an option to produce drinking water during an emergency.
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Affiliation(s)
- Saiful Saiful
- Chemistry Department, Faculty of Mathematics and Natural Science, Syiah Kuala University, Banda Aceh 23111, Indonesia; (M.A.); (M.M.)
- Correspondence: ; Tel.: +62-813-6058-1225
| | - Maurisa Ajrina
- Chemistry Department, Faculty of Mathematics and Natural Science, Syiah Kuala University, Banda Aceh 23111, Indonesia; (M.A.); (M.M.)
| | - Yusuf Wibisono
- Department of Bioprocess Engineering, Faculty of Agricultural Technology, Brawijaya University, Malang 65141, Indonesia;
| | - Marlina Marlina
- Chemistry Department, Faculty of Mathematics and Natural Science, Syiah Kuala University, Banda Aceh 23111, Indonesia; (M.A.); (M.M.)
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12
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Parween S, Bhatnagar I, Bhosale S, Paradkar S, Michael IJ, Rao CM, Asthana A. Cross-linked chitosan biofunctionalized paper-based microfluidic device towards long term stabilization of blood typing antibodies. Int J Biol Macromol 2020; 163:1233-1239. [DOI: 10.1016/j.ijbiomac.2020.07.075] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/24/2020] [Accepted: 07/08/2020] [Indexed: 10/23/2022]
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13
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İlk S, Ramanauskaitė A, Koç Bilican B, Mulerčikas P, Çam D, Onses MS, Torun I, Kazlauskaitė S, Baublys V, Aydın Ö, Zang LS, Kaya M. Usage of natural chitosan membrane obtained from insect corneal lenses as a drug carrier and its potential for point of care tests. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 112:110897. [PMID: 32409054 DOI: 10.1016/j.msec.2020.110897] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 03/10/2020] [Accepted: 03/22/2020] [Indexed: 12/19/2022]
Abstract
Chitosan is an indispensable biopolymer for use as a drug carrier thanks to its non-toxic, biodegradable, biocompatible, antimicrobial, and anti-oxidative nature. In previous studies, chitosan was first dissolved into weak acids and formed into gel, then used for carrying pharmaceutically active compounds such as nanoparticles, capsules, composites, and films. Using the produced chitosan gel after dissolving it in weak acids has advantages, such as ease of processing for loading the required amount of active substance and making the desired shape and size. However, dissolved chitosan loses some of its natural properties such as fibrous structure, crystallinity, and thermal stability. In this study, for the first time, three-dimensional chitosan lenses obtained from an insect's (Tabanus bovinus) compound eyes, with the original shape intact, were tested as a drug carrier. A model drug, quercetin, was loaded into chitosan membrane, and its release profile was examined. Also, a point-of-care test was conducted for both chitin and chitosan membranes. Chitin and chitosan membranes obtained from insect corneal lenses were characterized by using FTIR, TGA, elemental analysis, and surface wettability analysis as well as stereo, binocular, and scanning electron microscopies. It was observed that chitosan membrane could be used as a drug carrier material. Both chitin and chitosan membranes will be improved for lateral flow assay, and these membranes can be tested for other bioengineering applications in further studies.
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Affiliation(s)
- Sedef İlk
- Department of Immunology, Faculty of Medicine, Niğde Ömer Halisdemir University, 51240 Niğde, Turkey
| | - Aurelija Ramanauskaitė
- Department of Biology, Faculty of Natural Science, Vytautas Magnus University, 44248 Kaunas, Lithuania
| | - Behlül Koç Bilican
- Department of Biotechnology and Molecular Biology, Aksaray University, 68100 Aksaray, Turkey
| | - Povilas Mulerčikas
- Vytautas Magnus University, K. Donelaičio str. 58, 44248 Kaunas, Lithuania
| | - Dilek Çam
- Department of Biology, Çankırı Karatekin University, 18100 Çankırı, Turkey
| | - M Serdar Onses
- ERNAM - Erciyes University Nanotechnology Application and Research Center, 38039 Kayseri, Turkey; Department of Materials Science and Engineering, Erciyes University, 38039 Kayseri, Turkey
| | - Ilker Torun
- ERNAM - Erciyes University Nanotechnology Application and Research Center, 38039 Kayseri, Turkey
| | | | - Vykintas Baublys
- Department of Biology, Faculty of Natural Science, Vytautas Magnus University, 44248 Kaunas, Lithuania
| | - Ömer Aydın
- ERNAM - Erciyes University Nanotechnology Application and Research Center, 38039 Kayseri, Turkey; Department of Biomedical Engineering, Erciyes University, 38039 Kayseri, Turkey
| | - Lian-Sheng Zang
- Jilin Engineering Research Center of Resource Insects Industrialization, Jilin Agricultural University, Changchun 130118, PR China
| | - Murat Kaya
- Department of Biotechnology and Molecular Biology, Aksaray University, 68100 Aksaray, Turkey.
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14
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Kildeeva N, Chalykh A, Belokon M, Petrova T, Matveev V, Svidchenko E, Surin N, Sazhnev N. Influence of Genipin Crosslinking on the Properties of Chitosan-Based Films. Polymers (Basel) 2020; 12:E1086. [PMID: 32397589 PMCID: PMC7285115 DOI: 10.3390/polym12051086] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/27/2020] [Accepted: 05/06/2020] [Indexed: 01/09/2023] Open
Abstract
Chitosan is a promising environment friendly active polymer packaging material due to its biodegradability, exceptional film forming capacity, great mechanical strength, appropriate barrier property along with intrinsic antioxidant and antimicrobial features. Bifunctional reagent was used for producing water insoluble chitosan films. Biopolymeric films crosslinked by Genipin (Gp), which is a reagent of natural origin, should have high potential in food packaging. The influence of the ratio of functional groups in the chitosan-Gp system on film absorption in the visible and ultraviolet regions of the spectrum, sorption, physical, and mechanical properties of the films has been studied. The degree of chitosan crosslinking in the films obtained from solutions containing Gp was estimated using the experimental data on film swelling and water vapor sorption isotherms. It is demonstrated that crosslinking with genipin improves swelling, water resistance, and mechanical properties of the films.
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Affiliation(s)
- Nataliya Kildeeva
- Department of Chemistry and Technology of Polymer Materials and Nanocomposites, The Kosygin State University of Russia, 119071 Moscow, Russia; (M.B.); (N.S.)
| | - Anatoliy Chalykh
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, Russia; (A.C.); (T.P.); (V.M.)
| | - Mariya Belokon
- Department of Chemistry and Technology of Polymer Materials and Nanocomposites, The Kosygin State University of Russia, 119071 Moscow, Russia; (M.B.); (N.S.)
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119071 Moscow, Russia
| | - Tatyana Petrova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, Russia; (A.C.); (T.P.); (V.M.)
| | - Vladimir Matveev
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, Russia; (A.C.); (T.P.); (V.M.)
| | - Evgeniya Svidchenko
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 119071 Moscow, Russia; (E.S.); (N.S.)
| | - Nikolay Surin
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 119071 Moscow, Russia; (E.S.); (N.S.)
| | - Nikita Sazhnev
- Department of Chemistry and Technology of Polymer Materials and Nanocomposites, The Kosygin State University of Russia, 119071 Moscow, Russia; (M.B.); (N.S.)
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15
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Pavoni JMF, dos Santos NZ, May IC, Pollo LD, Tessaro IC. Impact of acid type and glutaraldehyde crosslinking in the physicochemical and mechanical properties and biodegradability of chitosan films. Polym Bull (Berl) 2020. [DOI: 10.1007/s00289-020-03140-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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16
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Saeedi Garakani S, Khanmohammadi M, Atoufi Z, Kamrava SK, Setayeshmehr M, Alizadeh R, Faghihi F, Bagher Z, Davachi SM, Abbaspourrad A. Fabrication of chitosan/agarose scaffolds containing extracellular matrix for tissue engineering applications. Int J Biol Macromol 2019; 143:533-545. [PMID: 31816374 DOI: 10.1016/j.ijbiomac.2019.12.040] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 12/02/2019] [Accepted: 12/05/2019] [Indexed: 01/15/2023]
Abstract
One of the most effective approaches for treatment of cartilage involves the use of porous three-dimensional scaffolds, which are useful for improving not only cellular adhesion but also mechanical properties of the treated tissues. In this study, we manufactured a composite scaffold with optimum properties to imitate nasal cartilage attributes. Cartilage extracellular matrix (ECM) was used in order to improve the cellular properties of the scaffolds; while, chitosan and agarose were main materials that are used to boost the mechanical and rheological properties of the scaffolds. Furthermore, we explored the effect of the various weight ratios of chitosan, agarose, and ECM on the mechanical and biomedical properties of the composite scaffolds using the Taguchi method. The resulting composites display a range of advantages, including good mechanical strength, porous morphology, partial crystallinity, high swelling ratio, controlled biodegradability rate, and rheological characteristics. Additionally, we performed the cytotoxicity tests to confirm the improvement of the structure and better cell attachments on the scaffolds. Our findings illustrate that the presence of the ECM in chitosan/agarose structure improves the biomedical characteristics of the final scaffold. In addition, we were able to control the mechanical properties and microstructure of the scaffolds by optimizing the polymers' concentration and their resulting interactions. These results present a novel scaffold with simultaneously enhanced mechanical and cellular attributes comparing to the scaffolds without ECM for nasal cartilage tissue engineering applications.
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Affiliation(s)
- Sadaf Saeedi Garakani
- Skull Base Research Center, The Five Senses Institute, Hazrat Rasoul Akram Hospital, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Mehdi Khanmohammadi
- Department of Tissue Engineering and Applied Cell Science, School of Advanced Technologies in Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Zhaleh Atoufi
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Seyed Kamran Kamrava
- ENT and Head & Neck Research Center and Department, The Five Senses Institute, Hazrat Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Mohsen Setayeshmehr
- Biomaterials, Nanotechnology and Tissue Engineering Group, Department of Advanced Medical Technology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Rafieh Alizadeh
- ENT and Head & Neck Research Center and Department, The Five Senses Institute, Hazrat Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Faezeh Faghihi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Zohreh Bagher
- ENT and Head & Neck Research Center and Department, The Five Senses Institute, Hazrat Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.
| | - Seyed Mohammad Davachi
- Department of Food Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY, USA.
| | - Alireza Abbaspourrad
- Department of Food Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY, USA
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17
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Synthesis and characterization of modified chitosan membranes for applications in electrochemical capacitor. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.134632] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Apte G, Repanas A, Willems C, Mujtaba A, Schmelzer CEH, Raichur A, Syrowatka F, Groth T. Effect of Different Crosslinking Strategies on Physical Properties and Biocompatibility of Freestanding Multilayer Films Made of Alginate and Chitosan. Macromol Biosci 2019; 19:e1900181. [PMID: 31531939 DOI: 10.1002/mabi.201900181] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 08/16/2019] [Indexed: 01/26/2023]
Abstract
Freestanding multilayer films prepared by layer-by-layer technique have attracted interest as promising materials for wound dressings. The goal is to fabricate freestanding films using chitosan (CHI) and alginate (ALG) including subsequent crosslinking to improve the mechanical properties of films while maintaining their biocompatibility. Three crosslinking strategies are investigated, namely use of calcium ions for crosslinking ALG, 1-ethyl-3-(-3-dimethylaminopropyl) carbodiimide combined with N-hydroxysuccinimide for crosslinking ALG with CHI, and Genipin for crosslinking chitosan inside the films. Different characteristics, such as surface morphology, wettability, swelling, roughness, and mechanical properties are investigated showing that films became thinner, exhibited rougher surfaces, had lower water uptake, and increased mechanical strength after crosslinking. Changes of wettability are moderate and dependent on the crosslinking method. In vitro cytotoxicity and cell attachment studies with human dermal fibroblasts show that freestanding CHI-ALG films represent a poorly adhesive substratum for fibroblasts, while studies using incubation of plastic-adherent fibroblast beneath floating films show no signs of cytotoxicity in a time frame of 7 days. Results from cell experiments combined with film characteristics after crosslinking, indicate that crosslinked freestanding films made of ALG and CHI may be interesting candidates for wound dressings.
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Affiliation(s)
- Gurunath Apte
- Department of Biomedical Materials, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120, Halle (Saale), Germany
| | - Alexandros Repanas
- Department of Biomedical Materials, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120, Halle (Saale), Germany
| | - Christian Willems
- Department of Biomedical Materials, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120, Halle (Saale), Germany
| | - Anas Mujtaba
- Fraunhofer Institute for Microstructure of Materials and Systems, Walter-Hülse-Strasse 1, 06120, Halle (Saale), Germany
| | - Christian E H Schmelzer
- Fraunhofer Institute for Microstructure of Materials and Systems, Walter-Hülse-Strasse 1, 06120, Halle (Saale), Germany
| | - Ashok Raichur
- Department of Materials Engineering, Indian Institute of Science, Bangalore, 560012, India.,Nanotechnology and Water Sustainability Unit, University of South Africa, Florida, 1710, Johannesburg, South Africa
| | - Frank Syrowatka
- Interdisciplinary Center of Materials Science, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120, Halle (Saale), Germany
| | - Thomas Groth
- Department of Biomedical Materials, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120, Halle (Saale), Germany.,Interdisciplinary Center of Material Research, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120, Halle (Saale), Germany
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19
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Chitosan-polycaprolactone blend sponges for management of chronic osteomyelitis: A preliminary characterization and in vitro evaluation. Int J Pharm 2019; 568:118553. [DOI: 10.1016/j.ijpharm.2019.118553] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 07/18/2019] [Accepted: 07/19/2019] [Indexed: 12/15/2022]
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20
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Mallakpour S, Khadem E. Construction of crosslinked chitosan/nitrogen-doped graphene quantum dot nanocomposite for hydroxyapatite biomimetic mineralization. Int J Biol Macromol 2018; 120:1451-1460. [DOI: 10.1016/j.ijbiomac.2018.09.127] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 09/09/2018] [Accepted: 09/20/2018] [Indexed: 02/07/2023]
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21
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Nasab SG, Semnani A, Teimouri A, Yazd MJ, Isfahani TM, Habibollahi S. Decolorization of crystal violet from aqueous solutions by a novel adsorbent chitosan/nanodiopside using response surface methodology and artificial neural network-genetic algorithm. Int J Biol Macromol 2018; 124:429-443. [PMID: 30452982 DOI: 10.1016/j.ijbiomac.2018.11.148] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 11/03/2018] [Accepted: 11/15/2018] [Indexed: 10/27/2022]
Abstract
A novel adsorbent of chitosan/nanodiopside nanocomposite (CS-NDIO) was synthesized as a green composite for the removal of crystal violet (CV) and characterized by techniques like XRD, FT-IR, BET, and FESEM analysis. The influence of parameters like molar ratios of CS to NDIO, initial pH of the solution, dosage of adsorbent, initial concentration of CV and contact time was investigated and evaluated by central composite design (CCD; 5 levels and 4 factors). Also, Hybrid model of (ANN) model with genetic algorithm (GA) optimization was applied to the experimental data get through CCD. The optimized molar ratio of CS-NDIO was found: 20/80. Optimal parameter choice for maximum CV adsorption process using CCD and ANN-GA were as follows: pH = 7.50 and 7.499, adsorbent mass: 0.0077 and 0.0077 g, CV concentration: 20.000 and 20.002 mg/L, and contact time: 25.00 and 25.00 min, respectively. The evaluation adsorption equilibrium and kinetic data were fitted with the Langmuir monolayer isotherm model (qmax: 104.66 mg g-1 and R2: 0.9937) and pseudo-second order kinetics mechanism (R2: 0.9978). Thermodynamic parameters (R2: 0.9180, ΔH°: -74.93 kJ mol-1, ΔG°: -12.89 kJ mol-1, and ΔS°: 0.93 kJ mol-1 K-1) were calculated and indicating adsorption to be an exothermic and spontaneous process.
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Affiliation(s)
- Shima Ghanavati Nasab
- Department of Chemistry, Faculty of Sciences, University of Shahrekord, P. O. Box 115, Shahrekord, Iran
| | - Abolfazl Semnani
- Department of Chemistry, Faculty of Sciences, University of Shahrekord, P. O. Box 115, Shahrekord, Iran.
| | - Abbas Teimouri
- Department of Chemistry, Payam Noor University (PNU), P. O. Box. 19395-4697, Tehran, Iran
| | - Mehdi Javaheran Yazd
- Young Researchers and Elite Club, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr, Iran
| | | | - Saeed Habibollahi
- Department of Chemistry, Payam Noor University (PNU), P. O. Box. 19395-4697, Tehran, Iran
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22
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Shemshad S, Kamali S, Khavandi A, Azari S. Synthesis, characterization and in-vitro behavior of natural chitosan-hydroxyapatite-diopside nanocomposite scaffold for bone tissue engineering. INT J POLYM MATER PO 2018. [DOI: 10.1080/00914037.2018.1466138] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Sepideh Shemshad
- School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Samaneh Kamali
- School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Alireza Khavandi
- School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Shahram Azari
- Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran
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23
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Sousa MP, Neto AI, Correia TR, Miguel SP, Matsusaki M, Correia IJ, Mano JF. Bioinspired multilayer membranes as potential adhesive patches for skin wound healing. Biomater Sci 2018; 6:1962-1975. [PMID: 29850674 PMCID: PMC6420149 DOI: 10.1039/c8bm00319j] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Bioinspired and adhesive multilayer membranes are produced using the layer-by-layer (LbL) assembly of chitosan (CHT), alginate (ALG) and hyaluronic acid modified with dopamine (HA-DN). Freestanding multilayer membranes without DN are also produced as a control. The success of the synthesis of HA-DN was confirmed using UV-visible spectroscopy. Scanning electron microscopy images indicate that the surface of the DN-containing membranes is more porous than the control ones; they also present a higher average thickness value for the same number of CHT/ALG/CHT/HA(-DN) tetralayers (n = 100). Also, water uptake, mechanical strength and adhesion are enhanced with the introduction of DN moieties along the nano-layers. Besides, human dermal fibroblast viability, enhanced adhesion and proliferation were confirmed by immunofluorescence assays and by measuring both the metabolic activity and DNA content. Moreover, in vivo assays with such kinds of DN-containing multilayer membranes were performed; the application of these membranes in the treatment of dermal wounds induced in Wistar rats results in the highest decrease of inflammation of rat skin, compared with the control conditions. Overall, this investigation suggests that these mussel-inspired freestanding multilayer membranes may enhance either their mechanical performance or cellular adhesion and proliferation, leading to an improved wound healing process, being a promising material to restore the structural and functional properties of wounded skin.
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Affiliation(s)
- Maria P Sousa
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
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24
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Walczak K, Thiele J, Geisler D, Boening K, Wieckiewicz M. Effect of Chemical Disinfection on Chitosan Coated PMMA and PETG Surfaces-An In Vitro Study. Polymers (Basel) 2018; 10:E536. [PMID: 30966570 PMCID: PMC6415410 DOI: 10.3390/polym10050536] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 05/02/2018] [Accepted: 05/09/2018] [Indexed: 12/16/2022] Open
Abstract
In oral sciences, chitosan application is of interest due to its antimicrobial and hemostatic activity. Chitosan coating of dentures and other intraoral devices could be beneficial for treatment of denture stomatitis or in the management of postoperative bleeding. Disinfection of dentures and prosthodontic materials is crucial before their use in patients. This study investigated the influence of chemical disinfectants on chitosan-coated surfaces. A total of 100 specimens were made: 50 of PMMA (polymethyl methacrylate), and 50 of PETG (polyethylene terephthalate glycol-modified) material and coated with 2% chitosan acetate solution. In each material, 5 groups (10 specimens each) were established and disinfected with Printosept-ID (L1), MD 520 (L2), Silosept (L3), or Dentavon (L4), or stored in distilled water (L0, control group). After disinfection, all specimens underwent abrasion tests (30,000 cycles in a tooth-brushing simulator). Areas without chitosan coating were measured by digital planimetry both before and after the disinfection/abrasion procedure and a damage-score was calculated. Regarding chitosan coating, the statistical analysis showed a significant influence of the disinfectants tested and significant differences between disinfectants (p < 0.05). Chitosan coating was most stable on PMMA and PETG after disinfection with MD 520 (L2). Otherwise, active oxygen containing disinfectants (L3, L4) led to the greatest alterations in the chitosan coating.
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Affiliation(s)
- Katarzyna Walczak
- Department of Prosthetic Dentistry, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany.
| | - Jessica Thiele
- Department of Prosthetic Dentistry, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany.
| | - Daniel Geisler
- Division of Psychological and Social Medicine and Developmental Neuroscience, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany.
| | - Klaus Boening
- Department of Prosthetic Dentistry, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany.
| | - Mieszko Wieckiewicz
- Department of Experimental Dentistry, Faculty of Dentistry, Wroclaw Medical University, 26 Krakowska st., 50-425 Wroclaw, Poland.
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Ionata E, Marcolongo L, La Cara F, Cetrangolo GP, Febbraio F. Improvement of functional properties of a thermostable β-glycosidase for milk lactose hydrolysis. Biopolymers 2018; 109:e23118. [DOI: 10.1002/bip.23118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 03/14/2018] [Accepted: 03/16/2018] [Indexed: 12/23/2022]
Affiliation(s)
- Elena Ionata
- Institute of Agro-Environmental and Forest Biology-Consiglio Nazionale delle Ricerche (CNR), via P. Castellino 111; Naples 80131 Italy
| | - Loredana Marcolongo
- Institute of Agro-Environmental and Forest Biology-Consiglio Nazionale delle Ricerche (CNR), via P. Castellino 111; Naples 80131 Italy
| | - Francesco La Cara
- Institute of Agro-Environmental and Forest Biology-Consiglio Nazionale delle Ricerche (CNR), via P. Castellino 111; Naples 80131 Italy
| | - Giovanni P. Cetrangolo
- Institute of Protein Biochemistry-Consiglio Nazionale delle Ricerche (CNR), via P. Castellino 111; Naples 80131 Italy
| | - Ferdinando Febbraio
- Institute of Protein Biochemistry-Consiglio Nazionale delle Ricerche (CNR), via P. Castellino 111; Naples 80131 Italy
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Gomes TD, Caridade SG, Sousa MP, Azevedo S, Kandur MY, Öner ET, Alves NM, Mano JF. Adhesive free-standing multilayer films containing sulfated levan for biomedical applications. Acta Biomater 2018; 69:183-195. [PMID: 29378324 DOI: 10.1016/j.actbio.2018.01.027] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 12/09/2017] [Accepted: 01/18/2018] [Indexed: 12/21/2022]
Abstract
This work is the first reporting the use of layer-by-layer to produce adhesive free-standing (FS) films fully produced using natural-based macromolecules: chitosan (CHI), alginate (ALG) and sulfated levan (L-S). The deposition conditions of the natural polymers were studied through zeta potential measurements and quartz crystal microbalance with dissipation monitoring analysis. The properties of the FS films were evaluated and compared with the control ones composed of only CHI and ALG in order to assess the influence of levan polysaccharide introduced in the multilayers. Tensile tests, dynamic mechanical analysis and single lap shear strength tests were performed to evaluate the mechanical properties of the prepared FS films. The presence of L-S conferred both higher tensile strength and shear strength to the developed FS membranes. The results showed an adhesion strength 4 times higher than the control (CHI/ALG) FS films demonstrating the adhesive character of the FS films containing L-S. Morphological and topography studies were carried out revealing that the crosslinking reaction granted the L-S based FS film with a higher roughness and surface homogeneity. Preliminary biological assays were performed by cultivating myoblasts cells on the surface of the produced FS films. Both crosslinked and uncrosslinked FS films containing L-S were cytocompatible and myoconductive. STATEMENT OF SIGNIFICANCE Sutures remain as the "gold standard" for wound closure and bleeding control; however they still have limitations such as, high infection rate, inconvenience in handling, and concern over possible transmission of blood-borne disease through the use of needles. One of the challenges of tissue engineering consist on the design and development of biocompatible tissue adhesives and sealants with high adhesion properties to repair or attach devices to tissues. In this work, the introduction of sulfated levan (L-S) on multilayered free-standing membranes was proposed to confer adhesive properties. Moreover, the films were myoconductive even in the absence of crosslinking just by the presence of L-S. This study provides a promising strategy to develop biological adhesives and for cardiac tissue engineering applications.
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Abstract
This review is focused on the use of membranes for the specific application of bone regeneration. The first section focuses on the relevance of membranes in this context and what are the specifications that they should possess to improve the regeneration of bone. Afterward, several techniques to engineer bone membranes by using "bulk"-like methods are discussed, where different parameters to induce bone formation are disclosed in a way to have desirable structural and functional properties. Subsequently, the production of nanostructured membranes using a bottom-up approach is discussed by highlighting the main advances in the field of bone regeneration. Primordial importance is given to the promotion of osteoconductive and osteoinductive capability during the membrane design. Whenever possible, the films prepared using different techniques are compared in terms of handability, bone guiding ability, osteoinductivity, adequate mechanical properties, or biodegradability. A last chapter contemplates membranes only composed by cells, disclosing their potential to regenerate bone.
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Affiliation(s)
- Sofia G Caridade
- Department of Chemistry CICECO, Aveiro Institute of Materials, University of Aveiro , Aveiro, Portugal
| | - João F Mano
- Department of Chemistry CICECO, Aveiro Institute of Materials, University of Aveiro , Aveiro, Portugal
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28
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Ji X, Dong Y, Yuan B, Li B, Guo M. Influence of glutaraldehyde on the performance of a lignosulfonate/chitosan-based medium density fiberboard adhesive. J Appl Polym Sci 2017. [DOI: 10.1002/app.45870] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiaodi Ji
- Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), College of Material Science and Engineering; Northeast Forestry University; Harbin Heilongjiang 150040 People's Republic of China
| | - Yue Dong
- Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), College of Material Science and Engineering; Northeast Forestry University; Harbin Heilongjiang 150040 People's Republic of China
| | - Bingnan Yuan
- Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), College of Material Science and Engineering; Northeast Forestry University; Harbin Heilongjiang 150040 People's Republic of China
| | - Bin Li
- Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), College of Material Science and Engineering; Northeast Forestry University; Harbin Heilongjiang 150040 People's Republic of China
| | - Minghui Guo
- Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), College of Material Science and Engineering; Northeast Forestry University; Harbin Heilongjiang 150040 People's Republic of China
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Vinceković M, Jalšenjak N, Topolovec-Pintarić S, Đermić E, Bujan M, Jurić S. Encapsulation of Biological and Chemical Agents for Plant Nutrition and Protection: Chitosan/Alginate Microcapsules Loaded with Copper Cations and Trichoderma viride. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:8073-8083. [PMID: 27715032 DOI: 10.1021/acs.jafc.6b02879] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Novel chitosan/alginate microcapsules simultaneously loaded with copper cations and Trichoderma viride have been prepared and characterized. Information about the intermolecular interactions between biopolymers and bioactive agents was obtained by Fourier transform infrared spectroscopy. Encapsulation of T. viride spores and the presence of copper cations in the same compartment does not inhibit their activity. Microcapsule loading capacity and efficiency as well as swelling behavior and release depend on both the size of the microcapsule and bioactive agents. The in vitro copper cation release profile was fitted to a Korsmeyer-Peppas empirical model. Fickian diffusion was found to be a rate-controlling mechanism of release from smaller microcapsules, whereas anomalous transport kinetics controlled release from larger microcapsules. The T. viride spore release profile exhibited exponential release over the initial lag time. The results obtained opened perspectives for the future use of chitosan/alginate microcapsules simultaneously loaded with biological and chemical agents in plant nutrition and protection.
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Affiliation(s)
- Marko Vinceković
- Department of Chemistry and ‡Department of Plant Pathology, University of Zagreb Faculty of Agriculture , 10000 Zagreb, Croatia
| | - Nenad Jalšenjak
- Department of Chemistry and ‡Department of Plant Pathology, University of Zagreb Faculty of Agriculture , 10000 Zagreb, Croatia
| | - Snježana Topolovec-Pintarić
- Department of Chemistry and ‡Department of Plant Pathology, University of Zagreb Faculty of Agriculture , 10000 Zagreb, Croatia
| | - Edyta Đermić
- Department of Chemistry and ‡Department of Plant Pathology, University of Zagreb Faculty of Agriculture , 10000 Zagreb, Croatia
| | - Marija Bujan
- Department of Chemistry and ‡Department of Plant Pathology, University of Zagreb Faculty of Agriculture , 10000 Zagreb, Croatia
| | - Slaven Jurić
- Department of Chemistry and ‡Department of Plant Pathology, University of Zagreb Faculty of Agriculture , 10000 Zagreb, Croatia
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30
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Andrei G, Peptu CA, Popa M, Desbrieres J, Peptu C, Gardikiotis F, Costuleanu M, Costin D, Dupin JC, Uhart A, Tamba BI. Formulation and evaluation of cefuroxim loaded submicron particles for ophthalmic delivery. Int J Pharm 2015. [DOI: 10.1016/j.ijpharm.2015.07.053] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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31
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Qasim SB, Delaine-Smith RM, Fey T, Rawlinson A, Rehman IU. Freeze gelated porous membranes for periodontal tissue regeneration. Acta Biomater 2015; 23:317-328. [PMID: 25968357 DOI: 10.1016/j.actbio.2015.05.001] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2015] [Revised: 04/02/2015] [Accepted: 05/04/2015] [Indexed: 01/12/2023]
Abstract
Guided tissue regeneration (GTR) membranes have been used for the management of destructive forms of periodontal disease as a means of aiding regeneration of lost supporting tissues, including the alveolar bone, cementum, gingiva and periodontal ligaments (PDL). Currently available GTR membranes are either non-biodegradable, requiring a second surgery for removal, or biodegradable. The mechanical and biofunctional limitations of currently available membranes result in a limited and unpredictable treatment outcome in terms of periodontal tissue regeneration. In this study, porous membranes of chitosan (CH) were fabricated with or without hydroxyapatite (HA) using the simple technique of freeze gelation (FG) via two different solvents systems, acetic acid (ACa) or ascorbic acid (ASa). The aim was to prepare porous membranes to be used for GTR to improve periodontal regeneration. FG membranes were characterized for ultra-structural morphology, physiochemical properties, water uptake, degradation, mechanical properties, and biocompatibility with mature and progenitor osteogenic cells. Fourier transform infrared (FTIR) spectroscopy confirmed the presence of hydroxyapatite and its interaction with chitosan. μCT analysis showed membranes had 85-77% porosity. Mechanical properties and degradation rate were affected by solvent type and the presence of hydroxyapatite. Culture of human osteosarcoma cells (MG63) and human embryonic stem cell-derived mesenchymal progenitors (hES-MPs) showed that all membranes supported cell proliferation and long term matrix deposition was supported by HA incorporated membranes. These CH and HA composite membranes show their potential use for GTR applications in periodontal lesions and in addition FG membranes could be further tuned to achieve characteristics desirable of a GTR membrane for periodontal regeneration.
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32
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Teimouri A, Ebrahimi R, Emadi R, Beni BH, Chermahini AN. Nano-composite of silk fibroin–chitosan/Nano ZrO2 for tissue engineering applications: Fabrication and morphology. Int J Biol Macromol 2015; 76:292-302. [DOI: 10.1016/j.ijbiomac.2015.02.023] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Revised: 02/10/2015] [Accepted: 02/13/2015] [Indexed: 11/27/2022]
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33
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Preisig D, Weingartner M, Varum FJO, Bravo R, Alles R, Huwyler J, Puchkov M. Marker-ion analysis for quantification of mucoadhesivity of microparticles in particle-retention assays. Int J Pharm 2015; 487:157-66. [PMID: 25882011 DOI: 10.1016/j.ijpharm.2015.04.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 04/07/2015] [Accepted: 04/09/2015] [Indexed: 12/01/2022]
Abstract
The objective of the present work was to develop an improved method to quantify particle retention on mucosal tissue under dynamic flow conditions with simultaneous determination of drug dissolution. The principle was to dissolve the collected inert carrier material and quantify specific marker ions by reliable analytical methods. The mucoadhesive model particles consisted of drug-loaded porous calcium carbonate microcarriers coated with chitosan, and quantification of calcium ions by capillary electrophoresis enabled to determine particle-retention kinetics on colonic mucosal tissue. The method was validated by image analysis, and the particle-retention assay was successfully applied to granulate material (125-250 mm) and small particles (<90 μm) with mucoadhesive properties. Particle retention on colonic mucosa was improved by increasing the chitosan content, demonstrating the sensitivity and usefulness of marker-ion analysis for quantification of detached particles. Furthermore, we showed that drug dissolution from mucoadhesive microparticles followed comparable kinetics in the particle-retention assay and the standard USP IV method. Our findings are helpful for the development of micro-sized colonic drug delivery systems, in particular for optimization of mucoadhesive properties and sustained drug release kinetics of porous drug carriers.
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Affiliation(s)
- Daniel Preisig
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland.
| | - Michael Weingartner
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Felipe J O Varum
- Tillotts Pharma AG, Baslerstrasse 15, 4310 Rheinfelden, Switzerland.
| | - Roberto Bravo
- Tillotts Pharma AG, Baslerstrasse 15, 4310 Rheinfelden, Switzerland.
| | - Rainer Alles
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland.
| | - Jörg Huwyler
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland.
| | - Maxim Puchkov
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland.
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34
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Iijima K, Hashizume M. Application of Polysaccharides as Structural Materials. TRENDS GLYCOSCI GLYC 2015. [DOI: 10.4052/tigg.1419.1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
| | - Mineo Hashizume
- Department of Industrial Chemistry, Tokyo University of Science
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35
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Ferreira CS, Caridade SG, Mano JF, Alves NM. Homogeneous poly(L-lactic acid)/chitosan blended films. POLYM ADVAN TECHNOL 2014. [DOI: 10.1002/pat.3391] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- C. S. Ferreira
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; AvePark, 4806-909, Taipas Guimarães Portugal
- ICVS/3B's PT Government Associate Laboratory; Braga
- Guimarães Portugal
| | - S. G. Caridade
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; AvePark, 4806-909, Taipas Guimarães Portugal
- ICVS/3B's PT Government Associate Laboratory; Braga
- Guimarães Portugal
| | - J. F. Mano
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; AvePark, 4806-909, Taipas Guimarães Portugal
- ICVS/3B's PT Government Associate Laboratory; Braga
- Guimarães Portugal
| | - N. M. Alves
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; AvePark, 4806-909, Taipas Guimarães Portugal
- ICVS/3B's PT Government Associate Laboratory; Braga
- Guimarães Portugal
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Gómez-Mascaraque LG, Méndez JA, Fernández-Gutiérrez M, Vázquez B, San Román J. Oxidized dextrins as alternative crosslinking agents for polysaccharides: application to hydrogels of agarose-chitosan. Acta Biomater 2014; 10:798-811. [PMID: 24121253 DOI: 10.1016/j.actbio.2013.10.003] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Revised: 08/27/2013] [Accepted: 10/03/2013] [Indexed: 12/28/2022]
Abstract
Hydrogel networks that combine suitable physical and biomechanical characteristics for tissue engineering scaffolds are in demand. The aim of this work was the development of hydrogel networks based on agarose and chitosan using oxidized dextrins as low cytotoxicity crosslinking agents, paying special attention to the study of the influence of the polysaccharide composition and oxidation degree of the dextrins in the final characteristics of the network. The results show that the formation of an interpenetrating or a semi-interpenetrating polymer network was mainly dependent on a minimum agarose content and degree of oxidation of dextrin. Spectroscopic, thermal and swelling analysis revealed good compatibility with an absence of phase separation of polysaccharides at agarose:chitosan proportions of 50:50 and 25:75. The analysis of atomic force microscopy images showed the formation of a fibrillar microstructure whose distribution within the crosslinked chitosan depended mainly on the crosslinker. All materials exhibited the viscoelastic behaviour typical of gels, with a constant storage modulus independent of frequency for all compositions. The stiffness was strongly influenced by the degree of oxidation of the crosslinker. Cellular response to the hydrogels was studied with cells of different strains, and cell adhesion and proliferation was correlated with the homogeneity of the samples and their elastic properties. Some hydrogel formulations seemed to be candidates for tissue engineering applications such as wound healing or soft tissue regeneration.
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Affiliation(s)
- Laura G Gómez-Mascaraque
- CIBER-BBN, Ebro River Campus, R&D Building, Block 5, Floor 1, Poeta Mariano Esquillor s/n, 50017 Zaragoza, Spain; Institute of Polymer Science and Technology, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
| | - José Alberto Méndez
- Escola Politècnica Superior, Edifici PI, Campus Montilivi, University of Girona, 17071 Girona, Spain
| | - Mar Fernández-Gutiérrez
- CIBER-BBN, Ebro River Campus, R&D Building, Block 5, Floor 1, Poeta Mariano Esquillor s/n, 50017 Zaragoza, Spain; Institute of Polymer Science and Technology, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
| | - Blanca Vázquez
- CIBER-BBN, Ebro River Campus, R&D Building, Block 5, Floor 1, Poeta Mariano Esquillor s/n, 50017 Zaragoza, Spain; Institute of Polymer Science and Technology, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain.
| | - Julio San Román
- CIBER-BBN, Ebro River Campus, R&D Building, Block 5, Floor 1, Poeta Mariano Esquillor s/n, 50017 Zaragoza, Spain; Institute of Polymer Science and Technology, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
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37
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Azevedo JV, Mano JF, Alves NM. Development of new poly(ϵ-caprolactone)/chitosan films. POLYM INT 2013. [DOI: 10.1002/pi.4430] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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38
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Caridade SG, Merino EG, Alves NM, Bermudez VDZ, Boccaccini AR, Mano JF. Chitosan membranes containing micro or nano-size bioactive glass particles: evolution of biomineralization followed by in situ dynamic mechanical analysis. J Mech Behav Biomed Mater 2012; 20:173-83. [PMID: 23466499 DOI: 10.1016/j.jmbbm.2012.11.012] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Revised: 11/13/2012] [Accepted: 11/19/2012] [Indexed: 12/15/2022]
Abstract
A new family of biodegradable polymer/bioactive glass (BG) composite materials has emerged based on the availability of nano-sized bioactive particles. Such novel biocomposites can have enhanced performance, in terms of mechanical properties and bioactivity, and they can be designed to be used in bone regeneration approaches. In this work, membranes of chitosan (CTS) and chitosan with bioactive glass (BG) both micron and nano sized particles (CTS/μBG, CTS/nBG, respectively) were prepared by solvent casting. Microstructural and mechanical properties were evaluated in order to compare the effects of the incorporation of micro (μBG) and nano (nBG) particles in the chitosan matrix. In vitro bioactivity tests were performed to characterize the apatite layer that is formed on the surface of the material after being immersed in simulated body fluid (SBF). The biomineralization process on the biomaterials was also followed using non-conventional dynamic mechanical analysis (DMA), both online and offline. In such DMA experiments, the change in the storage modulus, E', and the loss factor, tan δ, were measured as a function of the immersion time in SBF. The results demonstrated that CTS/nBG membranes possess enhanced mechanical properties and higher bioactivity in comparison with the CTS/μBG membranes. Such results suggest the potential of nBG for the development of bioactive composites for bone regeneration applications.
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Affiliation(s)
- Sofia G Caridade
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas, Guimarães, Portugal.
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39
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Mota J, Yu N, Caridade SG, Luz GM, Gomes ME, Reis RL, Jansen JA, Walboomers XF, Mano JF. Chitosan/bioactive glass nanoparticle composite membranes for periodontal regeneration. Acta Biomater 2012; 8:4173-80. [PMID: 22771458 DOI: 10.1016/j.actbio.2012.06.040] [Citation(s) in RCA: 135] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Revised: 06/27/2012] [Accepted: 06/29/2012] [Indexed: 11/19/2022]
Abstract
Barrier membranes are used in periodontal applications with the aim of supporting periodontal regeneration by physically blocking migration of epithelial cells. The present work proposes a combination of chitosan (CHT) with bioactive glass nanoparticles (BG-NPs) in order to produce a novel guided tissue and bone regeneration membrane, fabricated by solvent casting. The CHT/BG-NP nanocomposite membranes are characterized in terms of water uptake, in mechanical tests, under simulated physiological conditions and in in vitro bioactivity tests. The addition of BG-NPs to CHT membranes decreased the mechanical potential of these membranes, but on the other hand the bioactivity improved. The membranes containing the BG-NPs induced the precipitation of bone-like apatite in simulated body fluid (SBF). Biological tests were carried out using human periodontal ligament cells and human bone marrow stromal cells. CHT/BG-NP composite membranes promoted cell metabolic activity and mineralization. The results indicate that the CHT/BG-NP composite membrane could potentially be used as a temporary guided tissue regeneration membrane in periodontal regeneration, with the possibility to induce bone regeneration.
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Affiliation(s)
- Joana Mota
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas, Guimarães, Portugal
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40
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Lee SB, Kwon JS, Lee YK, Kim KM, Kim KN. Bioactivity and mechanical properties of collagen composite membranes reinforced by chitosan and β-tricalcium phosphate. J Biomed Mater Res B Appl Biomater 2012; 100:1935-42. [DOI: 10.1002/jbm.b.32760] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Revised: 04/26/2012] [Accepted: 04/30/2012] [Indexed: 11/06/2022]
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41
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Lieder R, Darai M, Thor MB, Ng C, Einarsson JM, Gudmundsson S, Helgason B, Gaware VS, Másson M, Gíslason J, Örlygsson G, Sigurjónsson ÓE. In vitro
bioactivity of different degree of deacetylation chitosan, a potential coating material for titanium implants. J Biomed Mater Res A 2012; 100:3392-9. [DOI: 10.1002/jbm.a.34283] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Revised: 04/27/2012] [Accepted: 05/08/2012] [Indexed: 01/03/2023]
Affiliation(s)
- Ramona Lieder
- The Blood Bank, Landspitali University Hospital, Reykjavik, Iceland
- School of Science and Engineering, Reykjavik University, Iceland
- Innovation Center Iceland, Keldnaholt, Iceland
| | - Mariam Darai
- School of Science and Engineering, Reykjavik University, Iceland
- Innovation Center Iceland, Keldnaholt, Iceland
| | - Margrét Björk Thor
- The Blood Bank, Landspitali University Hospital, Reykjavik, Iceland
- School of Science and Engineering, Reykjavik University, Iceland
| | - C.‐H. Ng
- Genis ehf, Vatnagardar, Reykjavik, Iceland
| | | | | | - Benedikt Helgason
- Institute for Surgical Technology and Biomechanics, University of Bern, Switzerland
| | - Vivek Sambhaji Gaware
- Faculty of Pharmaceutical Sciences, School of Health Sciences, University of Iceland
| | - Már Másson
- Faculty of Pharmaceutical Sciences, School of Health Sciences, University of Iceland
| | | | | | - Ólafur E. Sigurjónsson
- The Blood Bank, Landspitali University Hospital, Reykjavik, Iceland
- School of Science and Engineering, Reykjavik University, Iceland
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Caridade SG, Merino EG, Alves NM, Mano JF. Bioactivity and Viscoelastic Characterization of Chitosan/Bioglass® Composite Membranes. Macromol Biosci 2012; 12:1106-13. [DOI: 10.1002/mabi.201200036] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Revised: 04/10/2012] [Indexed: 01/05/2023]
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Alves A, Pinho ED, Neves NM, Sousa RA, Reis RL. Processing ulvan into 2D structures: cross-linked ulvan membranes as new biomaterials for drug delivery applications. Int J Pharm 2012; 426:76-81. [PMID: 22281048 DOI: 10.1016/j.ijpharm.2012.01.021] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Revised: 01/09/2012] [Accepted: 01/10/2012] [Indexed: 10/14/2022]
Abstract
The polysaccharide ulvan, composed of sulphated rhamnose, glucoronic and iduronic acids was used to produce polymeric membranes by solvent casting. As ulvan is soluble in water, a cross-linking step was necessary to render the membrane insoluble in water and stable at physiological conditions. Cross-linked ulvan membranes were characterized by FTIR, SEM, swelling behaviour was investigated and the mechanical performance assessed by quasi-static tensile testing. Furthermore, the ability and mechanism of sustained release of a model drug from ulvan membranes was investigated. Produced membranes revealed remarkable ability to uptake water (up to ∼1800% of its initial dry weight) and increased mechanical performance (1.76 MPa) related with cross-linking. On the other hand, medicated ulvan dressings demonstrate the potential as drug delivery devices. Using a model drug we have observed an initial steady release of the drug - of nearly 49% - followed by slower and sustained release up to 14 days. The properties of ulvan membranes herein revealed suggest a great potential of this natural sulphated polysaccharide as a wound dressing.
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Affiliation(s)
- Anabela Alves
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas, Guimarães, Portugal; ICVS/3B's - PT Associated Laboratory, Portugal.
| | - Elisabete D Pinho
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas, Guimarães, Portugal; ICVS/3B's - PT Associated Laboratory, Portugal
| | - Nuno M Neves
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas, Guimarães, Portugal; ICVS/3B's - PT Associated Laboratory, Portugal
| | - Rui A Sousa
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas, Guimarães, Portugal; ICVS/3B's - PT Associated Laboratory, Portugal
| | - Rui L Reis
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas, Guimarães, Portugal; ICVS/3B's - PT Associated Laboratory, Portugal
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Alves NM, Fernandes LS, Levato R, Mano JF. Preparation and Characterization of New Biodegradable Films Made from Poly(L-Lactic Acid) and Chitosan Blends Using a Common Solvent. J MACROMOL SCI B 2011. [DOI: 10.1080/00222348.2010.502493] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- NatÁLIA M. Alves
- a 3B's Research Group—Biomaterials , Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark , Taipas , Guimarães , Portugal
- b IBB—Institute for Biotechnology and Bioengineering , PT Associated Laboratory , Guimarães , Portugal
| | - LuÍS S. Fernandes
- a 3B's Research Group—Biomaterials , Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark , Taipas , Guimarães , Portugal
- b IBB—Institute for Biotechnology and Bioengineering , PT Associated Laboratory , Guimarães , Portugal
| | - Riccardo Levato
- a 3B's Research Group—Biomaterials , Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark , Taipas , Guimarães , Portugal
- b IBB—Institute for Biotechnology and Bioengineering , PT Associated Laboratory , Guimarães , Portugal
| | - JoãO F. Mano
- a 3B's Research Group—Biomaterials , Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark , Taipas , Guimarães , Portugal
- b IBB—Institute for Biotechnology and Bioengineering , PT Associated Laboratory , Guimarães , Portugal
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Santos TC, Marques AP, Silva SS, Oliveira JM, Mano JF, Castro AG, van Griensven M, Reis RL. Chitosan improves the biological performance of soy-based biomaterials. Tissue Eng Part A 2010; 16:2883-90. [PMID: 20486796 DOI: 10.1089/ten.tea.2010.0114] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Soybean protein has been proposed for distinct applications within nutritional, pharmaceutical, and cosmetic industries among others. More recently, soy-based biomaterials have also demonstrated promising properties for biomedical applications. However, although many reports within other fields exist, the inflammatory/immunogenic potential of those materials is still poorly understood and therefore can hardly be controlled. On the contrary, chitosan (Cht) has been well explored in the biomedical field, either by itself or combined with synthetic or other natural-based polymers. Therefore, the combination of chitosan with soybean protein is foreseen as a suitable approach to control the biological behavior of soy-based biomaterials. Under this context this work was designed to try to understand the influence of chitosan in the host response elicited by soy-based biomaterials. Soybean protein isolate powder (SI-P) and Cht powder (Cht-P) were injected as suspension into the intraperitoneal cavity of rats. SI-P induced the recruitment of higher numbers of leukocytes compared to the Cht-P during the entire observation period. In this sense, SI-P elicited a considerable reaction from the host comparing to the Cht-P, which elicited leukocyte recruitment similar to the negative control. After subcutaneous implantation of the soybean and denatured membranes, (SI-M and dSI-M) a severe host inflammatory reaction was observed. Conversely, Cht/soy-based membranes (Cht/soy-based membranes) showed the induction of a normal host response after subcutaneous implantation in rats, which allowed concluding that the addition of chitosan to the soy-based membranes improved their in vivo performance. Thus, the presented results assert the improvement of the host response, considering inflammatory cells recruitment, and overall inflammatory reaction, when chitosan is combined to soybean. Together with previous results that reported their promising physicochemical characteristics and their inability to activate human polymorphonuclear neutrophils in vitro, the herein presented conclusions reinforce the usefulness of the Cht/soy-based membranes and justify the pursue for a specific application within the biomedical field.
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Affiliation(s)
- Tírcia C Santos
- 3B's Research Group-Biomaterials, Biodegradables, and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimarães, Portugal.
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Martins GV, Merino EG, Mano JF, Alves NM. Crosslink effect and albumin adsorption onto chitosan/alginate multilayered systems: an in situ QCM-D study. Macromol Biosci 2010; 10:1444-55. [PMID: 21125694 DOI: 10.1002/mabi.201000193] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2010] [Revised: 07/13/2010] [Indexed: 12/12/2022]
Abstract
The adsorption of HSA onto CHI/ALG multilayer assemblies was assessed in situ using QCM-D. It was found that the behavior of HSA on biomaterials surface can be tuned by adjusting parameters of the polyelectrolyte system such as pH, layer number, crosslinker and polymer terminal layer. Our results confirmed the key role of electrostatic interactions during HSA adsorption, since oppositely charged surfaces were more effective in promoting protein adhesion. QCM-D data revealed that crosslinking (CHI/ALG)(5) CHI films allows HSA to become adsorbed in physiological conditions. Our results suggested that the biological potential of biopolymers and the mild conditions of the LbL technique turn these natural nanoassemblies into a suitable choice to be used as pH-sensitive coatings.
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Affiliation(s)
- Gabriela V Martins
- Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimarães, Portugal.
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Yan LP, Wang YJ, Ren L, Wu G, Caridade SG, Fan JB, Wang LY, Ji PH, Oliveira JM, Oliveira JT, Mano JF, Reis RL. Genipin-cross-linked collagen/chitosan biomimetic scaffolds for articular cartilage tissue engineering applications. J Biomed Mater Res A 2010; 95:465-75. [DOI: 10.1002/jbm.a.32869] [Citation(s) in RCA: 255] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Rescia VC, Takata CS, de Araujo PS, Bueno da Costa MH. Dressing liposomal particles with chitosan and poly(vinylic alcohol) for oral vaccine delivery. J Liposome Res 2010; 21:38-45. [PMID: 20470223 DOI: 10.3109/08982101003735988] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Liposomes have been used as adjuvants since 1974. One major limitation for the use of liposomes in oral vaccines is the lipid structure instability caused by enzyme activities. Our aim was to combine liposomes that could encapsulate antigens (i.e., Dtxd, diphtheria toxoid) with chitosan, which protects the particles and promotes mucoadhesibility. We employed physical techniques to understand the process by which liposomes (SPC: Cho, 3:1) can be sandwiched with chitosan (Chi) and stabilized by PVA (poly-vinylic alcohol), which are biodegradable, biocompatible polymers. Round, smooth-surfaced particles of REVs-Chi (reversed-phase vesicles sandwiched by Chi) stabilized by PVA were obtained. The REVs encapsulation efficiencies (Dtxd was used as the antigen) were directly dependent on the Chi and PVA present in the formulation. Chi adsorption on the REVs surface was accompanied by an increase of ζ-potential. In contrast, PVA adsorption on the REVs-Chi surface was accompanied by a decrease of ζ-potential. The presence of Dtxd increased the Chi surface-adsorption efficiency. The PVA affinity by mucine was 2,000 times higher than that observed with Chi alone and did not depend on the molecule being in solution or adsorbed on the liposomal surface. The liberation of encapsulated Dtxd was retarded by encapsulation within REVs-Chi-PVA. These results lead us to conclude that these new, stabilized particles were able to be adsorbed by intestinal surfaces, resisted degradation, and controlled antigen release. Therefore, REVs-Chi-PVA particles can be used as an oral delivery adjuvant.
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Affiliation(s)
- Vanessa C Rescia
- Laboratório de Microesferas e Lipossomas, Centro de Biotecnologia, Instituto Butantan, São Paulo, Brazil
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Scanga VI, Goraltchouk A, Nussaiba N, Shoichet MS, Morshead CM. Biomaterials for neural-tissue engineering — Chitosan supports the survival, migration, and differentiation of adult-derived neural stem and progenitor cells. CAN J CHEM 2010. [DOI: 10.1139/v09-171] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Neural precursor cells (NPCs or stem and progenitor cells) are promising in transplantation strategies to treat an injury to the central nervous system, such as a spinal cord injury (SCI), because of their ability to differentiate into neurons and glia. Transplantation studies to date have met with limited success for a number of reasons, including poor cell survival. One way to encourage cell survival in injured tissue is to provide the cells with a scaffold to enhance their survival, their integration, and potentially their differentiation into appropriate cell types. Towards this end, four amine-functionalized hydrogels were screened in vitro for adult murine NPC viability, migration, and differentiation: chitosan, poly(oligoethylene oxide dimethacrylate-co-2-amino ethyl methacrylate), blends of poly(oligoethylene oxide dimethacrylate-co-2-amino ethyl methacrylate), and poly(vinyl alcohol), and poly(glycerol dimethacrylate-co-2-amino ethyl methacrylate). The greatest cell viability was found on chitosan at all times examined, Chitosan had the greatest surface amine content and the lowest equilibrium water content, which likely contributed to the greater NPC viability observed over three weeks in culture. Only chitosan supported survival of multipotent stem cells and the differentiation of the progenitors into neurons, astrocytes, and oligodendrocytes. Plating intact NPC colonies revealed greater cell migration on chitosan relative to the other hydrogels. Importantly, long term cultures on chitosan showed no significant difference in total cell counts over time, suggesting no net cell growth. Together, these findings reveal chitosan as a promising material for the delivery of adult NPC cell-based therapies.
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Affiliation(s)
- Vanessa I. Scanga
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Surgery, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON M5S 3E5, Canada
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
- Department of Chemistry, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Alex Goraltchouk
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Surgery, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON M5S 3E5, Canada
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
- Department of Chemistry, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Nasser Nussaiba
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Surgery, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON M5S 3E5, Canada
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
- Department of Chemistry, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Molly S. Shoichet
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Surgery, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON M5S 3E5, Canada
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
- Department of Chemistry, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Cindi M. Morshead
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Surgery, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON M5S 3E5, Canada
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
- Department of Chemistry, University of Toronto, Toronto, ON M5S 1A8, Canada
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