51
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Abbas WA, Sharafeldin IM, Omar MM, Allam NK. Novel mineralized electrospun chitosan/PVA/TiO 2 nanofibrous composites for potential biomedical applications: computational and experimental insights. NANOSCALE ADVANCES 2020; 2:1512-1522. [PMID: 36132310 PMCID: PMC9419788 DOI: 10.1039/d0na00042f] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 02/24/2020] [Indexed: 05/29/2023]
Abstract
Electrospun nanofibrous materials serve as potential solutions for several biomedical applications as they possess the ability of mimicking the extracellular matrix (ECM) of tissues. Herein, we report on the fabrication of novel nanostructured composite materials for potential use in biomedical applications that require a suitable environment for cellular viability. Anodized TiO2 nanotubes (TiO2 NTs) in powder form, with different concentrations, were incorporated as a filler material into a blend of chitosan (Cs) and polyvinyl alcohol (PVA) to synthesize composite polymeric electrospun nanofibrous materials. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), nanoindentation, Brunauer-Emmett-Teller (BET) analysis, and MTT assay for cell viability techniques were used to characterize the architectural, structural, mechanical, physical, and biological properties of the fabricated materials. Additionally, molecular dynamics (MD) modelling was performed to evaluate the mechanical properties of the polymeric PVA/chitosan matrix upon reinforcing the structure with TiO2 anatase nanotubes. The Young's modulus, shear and bulk moduli, Poisson's ratio, Lame's constants, and compressibility of these composites have been computed using the COMPASS molecular mechanics force fields. The MD simulations demonstrated that the inclusion of anatase TiO2 improves the mechanical properties of the composite, which is consistent with our experimental findings. The results revealed that the mineralized material improved the mechanical strength and the physical properties of the composite. Hence, the composite material has potential for use in biomedical applications.
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Affiliation(s)
- Walaa A Abbas
- Energy Materials Laboratory (EML), School of Sciences and Engineering (SSE), The American University in Cairo (AUC) New Cairo 11835 Egypt
| | - Icell M Sharafeldin
- Energy Materials Laboratory (EML), School of Sciences and Engineering (SSE), The American University in Cairo (AUC) New Cairo 11835 Egypt
| | - Mostafa M Omar
- Energy Materials Laboratory (EML), School of Sciences and Engineering (SSE), The American University in Cairo (AUC) New Cairo 11835 Egypt
| | - Nageh K Allam
- Energy Materials Laboratory (EML), School of Sciences and Engineering (SSE), The American University in Cairo (AUC) New Cairo 11835 Egypt
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52
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Rehman A, Houshyar S, Wang X. Nanodiamond in composite: Biomedical application. J Biomed Mater Res A 2020; 108:906-922. [DOI: 10.1002/jbm.a.36868] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 12/12/2019] [Accepted: 12/13/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Aisha Rehman
- School of Fashion and Textiles RMIT University Brunswick Victoria Australia
| | - Shadi Houshyar
- School of Engineering RMIT University Melbourne Victoria Australia
| | - Xin Wang
- School of Fashion and Textiles RMIT University Brunswick Victoria Australia
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53
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Zhang Z, Li X, Ma Z, Ning H, Zhang D, Wang Y. A facile and green strategy to simultaneously enhance the flame retardant and mechanical properties of poly(vinyl alcohol) by introduction of a bio-based polyelectrolyte complex formed by chitosan and phytic acid. Dalton Trans 2020; 49:11226-11237. [DOI: 10.1039/d0dt02019b] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
There are still some key problems in the process of the flame retardant treatment of poly vinyl alcohol (PVA): poor compatibility, deteriorating mechanical properties and potential toxicity to human health and environment.
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Affiliation(s)
- Zhihao Zhang
- Department of Material Science
- School of Physical Science and Technology
- Lanzhou University
- Lanzhou
- China
| | - Xinjuan Li
- Department of Materials
- Royal School of Mines
- Imperial College London
- London SW7 2AZ
- UK
| | - Zhongying Ma
- Department of Material Science
- School of Physical Science and Technology
- Lanzhou University
- Lanzhou
- China
| | - Haozhe Ning
- Department of Material Science
- School of Physical Science and Technology
- Lanzhou University
- Lanzhou
- China
| | - Dan Zhang
- Department of Material Science
- School of Physical Science and Technology
- Lanzhou University
- Lanzhou
- China
| | - Yuhua Wang
- Department of Material Science
- School of Physical Science and Technology
- Lanzhou University
- Lanzhou
- China
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54
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Hu P, Raub CB, Choy JS, Luo X. Modulating the properties of flow-assembled chitosan membranes in microfluidics with glutaraldehyde crosslinking. J Mater Chem B 2020; 8:2519-2529. [DOI: 10.1039/c9tb02527h] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Glutaraldehyde crosslinking significantly enhances the mechanical robustness of the originally compromised flow-assembled chitosan membranes after Pluronic passivation in microfluidics.
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Affiliation(s)
- Piao Hu
- Department of Mechanical Engineering
- The Catholic University of America
- Washington, D.C. 20064
- USA
| | - Christopher B. Raub
- Department of Biomedical Engineering
- The Catholic University of America
- Washington, D.C. 20064
- USA
| | - John S. Choy
- Department of Biology
- The Catholic University of America
- Washington, D.C. 20064
- USA
| | - Xiaolong Luo
- Department of Mechanical Engineering
- The Catholic University of America
- Washington, D.C. 20064
- USA
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55
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Wang G, Huang D, Ji J, Völker C, Wurm FR. Seawater-Degradable Polymers-Fighting the Marine Plastic Pollution. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 8:2001121. [PMID: 33437568 PMCID: PMC7788598 DOI: 10.1002/advs.202001121] [Citation(s) in RCA: 98] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 08/31/2020] [Indexed: 05/06/2023]
Abstract
Polymers shape human life but they also have been identified as pollutants in the oceans due to their long lifetime and low degradability. Recently, various researchers have studied the impact of (micro)plastics on marine life, biodiversity, and potential toxicity. Even if the consequences are still heavily discussed, prevention of unnecessary waste is desired. Especially, newly designed polymers that degrade in seawater are discussed as potential alternatives to commodity polymers in certain applications. Biodegradable polymers that degrade in vivo (used for biomedical applications) or during composting often exhibit too slow degradation rates in seawater. To date, no comprehensive summary for the degradation performance of polymers in seawater has been reported, nor are the studies for seawater-degradation following uniform standards. This review summarizes concepts, mechanisms, and other factors affecting the degradation process in seawater of several biodegradable polymers or polymer blends. As most of such materials cannot degrade or degrade too slowly, strategies and innovative routes for the preparation of seawater-degradable polymers with rapid degradation in natural environments are reviewed. It is believed that this selection will help to further understand and drive the development of seawater-degradable polymers.
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Affiliation(s)
- Ge‐Xia Wang
- National Engineering Research Center of Engineering PlasticsTechnical Institute of Physics and ChemistryThe Chinese Academy of SciencesBeijing100190P. R. China
| | - Dan Huang
- National Engineering Research Center of Engineering PlasticsTechnical Institute of Physics and ChemistryThe Chinese Academy of SciencesBeijing100190P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Jun‐Hui Ji
- National Engineering Research Center of Engineering PlasticsTechnical Institute of Physics and ChemistryThe Chinese Academy of SciencesBeijing100190P. R. China
| | - Carolin Völker
- ISOE – Institute for Social‐Ecological ResearchHamburger Allee 45Frankfurt60486Germany
| | - Frederik R. Wurm
- Max‐Planck‐Institut für PolymerforschungAckermannweg 10Mainz55128Germany
- Sustainable Polymer Chemistry GroupMESA+ Institute for Nanotechnology, Faculty of Science and Technology, Universiteit TwentePO Box 217Enschede7500 AEThe Netherlands
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56
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Chen H, Zheng K, Zhu A, Meng Z, Li W, Qin C. Preparation of Bentonite/Chitosan Composite for Bleaching of Deteriorating Transformer Oil. Polymers (Basel) 2020; 12:E60. [PMID: 31906328 PMCID: PMC7023508 DOI: 10.3390/polym12010060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 12/14/2019] [Accepted: 12/17/2019] [Indexed: 11/16/2022] Open
Abstract
A novel adsorbent containing chitosan (CS) and bentonite (BT) was developed by mixing, drying, and calcining, and used as an adsorbent for the efficient bleaching of deteriorating transformer oil. The effects of calcination temperature, dosage of CS, adsorbent content, adsorption temperature, and adsorption time on the bleaching capacity of transformer oil were investigated. The structure of the adsorbent was also investigated by Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), transmission electron microscopy (TEM), and N2 adsorption-desorption isotherm techniques. The results showed that there was only physical interaction between CS and BT; CS did transform to carbon (C) and covered the surface of BT. The specific surface area and micropore volume of the adsorbent were affected by the calcination process. The composite adsorbent offered an excellent bleaching performance. When the calcination temperature was 300 °C and dosage of CS was 5%, the composite adsorbent had the optimum bleaching properties. When the composite adsorbent content was 4%, the adsorption temperature was 50 °C and the adsorption time was 75 min, the colour number and transmittance of the deteriorating transformer oil decreased from no. 10 to no. 1 and increased from 70.1% to 99.5%, respectively.
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Affiliation(s)
- Hujian Chen
- School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China
| | - Kewang Zheng
- School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China
| | - Aohui Zhu
- School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China
| | - Zhifei Meng
- School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China
| | - Wei Li
- School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China
| | - Caiqin Qin
- School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China
- Key Laboratory of Biological Resources and Environmental Biotechnology, Wuhan University, Wuhan 430000, China
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57
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Lewandowska K. Effect of an ionic liquid on the physicochemical properties of chitosan/poly(vinyl alcohol) mixtures. Int J Biol Macromol 2019; 147:1156-1163. [PMID: 31739008 DOI: 10.1016/j.ijbiomac.2019.10.084] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 10/07/2019] [Accepted: 10/08/2019] [Indexed: 12/27/2022]
Abstract
Mixtures containing two polymers, chitosan (Ch) and poly(vinyl alcohol) (PVA) as well as mixtures with addition of an ionic liquid (IL) 1-butyl-3-methyl-imidazolium chloride (BMIM+Cl-) were prepared via casting from aqueous solutions. The morphology, mechanical and surface properties of Ch/PVA mixture films were characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), thermogravimetric analysis (TGA), infrared spectroscopy (ATR-FTIR), contact angle measurements and tensile tests. Rheological studies were performed via solutions of pure polymers and their mixtures with and without the addition of an ionic liquid. The viscosity curves of mixtures were found to lie between those of pure components over the entire compositional range. The non-Newtonian index (n) of these mixtures were determined by the power law model indicating shear-thinning behavior with pseudoplasticity increasing with an increasing weight fraction of chitosan. Results obtained from SEM, AFM, contact angle measurements, TGA and infrared spectroscopy (ATR-FTIR) were compared and showed that the addition of an ionic liquid is beneficial to the formation of intermolecular forces and the network structure between the polymer and mixture films, which leads to an improvement in the properties of these materials.
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Affiliation(s)
- Katarzyna Lewandowska
- Nicolaus Copernicus University in Toruń, Faculty of Chemistry, Gagarin 7, 87-100 Toruń, Poland.
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58
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Wahid F, Wang FP, Xie YY, Chu LQ, Jia SR, Duan YX, Zhang L, Zhong C. Reusable ternary PVA films containing bacterial cellulose fibers and ε-polylysine with improved mechanical and antibacterial properties. Colloids Surf B Biointerfaces 2019; 183:110486. [DOI: 10.1016/j.colsurfb.2019.110486] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 08/18/2019] [Accepted: 09/01/2019] [Indexed: 12/15/2022]
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59
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60
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Zheng K, Li W, Wang W, Chen H, Huang C, Ren Q, Qin C. Preparation and characterisation of carboxymethyl-chitosan/sodium phytate composite membranes for adsorption in transformer oil. Int J Biol Macromol 2019; 132:658-665. [PMID: 30946908 DOI: 10.1016/j.ijbiomac.2019.03.239] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 03/21/2019] [Accepted: 03/31/2019] [Indexed: 10/27/2022]
Abstract
Adsorption of metal impurities from transformer oil was studied using a novel porous membrane. A solution of N, O‑carboxymethyl‑chitosan (CMC) and sodium phytate (SP) was blended to prepare a novel porous membrane for the metal impurities adsorption from transformer oil. The chemical structure of the membranes was characterised by their FTIR spectra, scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and video camera observations. The effects of the SP content of the membrane, contact time, and contact temperature on adsorption of copper, iron, and aluminium impurities were studied. The FTIR spectra and thermogravimetric curves of the membranes indicated good compatibility between CMC and SP. The SEM and video camera observations suggested that CMC-SP composite membranes had a mature, porous structure. The experimental results showed that the SP content significantly affected the adsorption capacity of a CMC membrane. The maximum adsorption percentages of elemental copper, iron, and aluminium were 88.12%, 82.35%, and 80.36% when the SP ratio was 80% at 60 °C.
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Affiliation(s)
- Kewang Zheng
- College of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China
| | - Wei Li
- College of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China.
| | - Wei Wang
- College of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China
| | - Hujian Chen
- College of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China
| | - Chaofan Huang
- College of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China
| | - Qiaolin Ren
- State Grid Corporation of China, Beijing 100031, China
| | - Caiqin Qin
- College of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China.
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61
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Darge HF, Andrgie AT, Tsai HC, Lai JY. Polysaccharide and polypeptide based injectable thermo-sensitive hydrogels for local biomedical applications. Int J Biol Macromol 2019; 133:545-563. [DOI: 10.1016/j.ijbiomac.2019.04.131] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/12/2019] [Accepted: 04/16/2019] [Indexed: 01/19/2023]
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62
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Yaşar AÖ, Kaya İ. A cross-linker containing aldehyde functionalized ionic liquid for chitosan. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2019. [DOI: 10.1080/10601325.2019.1617038] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Alper Ömer Yaşar
- Department of Chemistry, Polymer Synthesis and Analysis Lab, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - İsmet Kaya
- Department of Chemistry, Polymer Synthesis and Analysis Lab, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
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63
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Abbasian M, Massoumi B, Mohammad-Rezaei R, Samadian H, Jaymand M. Scaffolding polymeric biomaterials: Are naturally occurring biological macromolecules more appropriate for tissue engineering? Int J Biol Macromol 2019; 134:673-694. [PMID: 31054302 DOI: 10.1016/j.ijbiomac.2019.04.197] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 04/15/2019] [Accepted: 04/30/2019] [Indexed: 12/14/2022]
Abstract
Nowadays, tissue and organ failures resulted from injury, aging accounts, diseases or other type of damages is one of the most important health problems with an increasing incidence worldwide. Current treatments have limitations including, low graft efficiency, shortage of donor organs, as well as immunological problems. In this context, tissue engineering (TE) was introduced as a novel and versatile approach for restoring tissue/organ function using living cells, scaffold and bioactive (macro-)molecules. Among these, scaffold as a three-dimensional (3D) support material, provide physical and chemical cues for seeding cells and has an essential role in cell missions. Among the wide verity of scaffolding materials, natural or synthetic biopolymers are the most commonly biomaterials mainly due to their unique physicochemical and biological features. In this context, naturally occurring biological macromolecules are particular of interest owing to their low immunogenicity, excellent biocompatibility and cytocompatibility, as well as antigenicity that qualified them as popular choices for scaffolding applications. In this review, we highlighted the potentials of natural and synthetic polymers as scaffolding materials. The properties, advantages, and disadvantages of both polymer types as well as the current status, challenges, and recent progresses regarding the application of them as scaffolding biomaterials are also discussed.
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Affiliation(s)
- Mojtaba Abbasian
- Department of Chemistry, Payame Noor University, P.O. Box: 19395-3697, Tehran, Iran
| | - Bakhshali Massoumi
- Department of Chemistry, Payame Noor University, P.O. Box: 19395-3697, Tehran, Iran
| | - Rahim Mohammad-Rezaei
- Analytical Chemistry Research Laboratory, Faculty of Sciences, Azarbaijan Shahid Madani University, P.O. Box: 53714-161, Tabriz, Iran
| | - Hadi Samadian
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mehdi Jaymand
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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64
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Önder Aksoy, Uzun İ, Topal G, Ocak YS, Çelik Ö, Batibay D. Schottky Diodes Based on the New Chitin Derivatives. POLYMER SCIENCE SERIES A 2019. [DOI: 10.1134/s0965545x19030027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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65
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Nangia S, Warkar S, Katyal D. A review on environmental applications of chitosan biopolymeric hydrogel based composites. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2019. [DOI: 10.1080/10601325.2018.1526041] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sakshi Nangia
- University School of Environment Management, Guru Gobind Singh Indraprastha University, New Delhi, India
| | - Sudhir Warkar
- Department of Applied Chemistry, Delhi Technological University, New Delhi, India
| | - Deeksha Katyal
- University School of Environment Management, Guru Gobind Singh Indraprastha University, New Delhi, India
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66
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Antony R, Arun T, Manickam STD. A review on applications of chitosan-based Schiff bases. Int J Biol Macromol 2019; 129:615-633. [PMID: 30753877 DOI: 10.1016/j.ijbiomac.2019.02.047] [Citation(s) in RCA: 150] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 02/01/2019] [Accepted: 02/07/2019] [Indexed: 02/07/2023]
Abstract
Biopolymers have become very attractive as they are degradable, biocompatible, non-toxic and renewable. Due to the intrinsic reactive amino groups, chitosan is vibrant in the midst of other biopolymers. Using the versatility of these amino groups, various structural modifications have been accomplished on chitosan through certain chemical reactions. Chemical modification of chitosan via imine functionalization (RR'CNR″; R: alkyl/aryl, R': H/alkyl/aryl and R″: chitosan ring) is significant as it recommends the resultant chitosan-based Schiff bases (CSBs) for the important applications in the fields like biology, catalysis, sensors, water treatment, etc. CSBs are usually synthesized by the Schiff condensation reaction between chitosan's amino groups and carbonyl compounds with the removal of water molecules. In this review, we first introduce the available synthetic approaches for the preparation of CSBs. Then, we discuss the biological applications of CSBs including antimicrobial activity, anticancer activity, drug carrier ability, antioxidant activity and tissue engineering capacity. Successively, the applications of CSBs in other fields such as catalysis, adsorption and sensors are demonstrated.
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Affiliation(s)
- R Antony
- Centre for Scientific and Applied Research, PSN College of Engineering and Technology (Autonomous), Tirunelveli 627152, Tamil Nadu, India.
| | - T Arun
- Department of Chemistry, Kamaraj College, Thoothukudi 628003, Tamil Nadu, India
| | - S Theodore David Manickam
- Centre for Scientific and Applied Research, PSN College of Engineering and Technology (Autonomous), Tirunelveli 627152, Tamil Nadu, India.
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67
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Effects of β-cyclodextrin complexation of curcumin and quaternization of chitosan on the properties of the blend films for use as wound dressings. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1703-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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68
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Morin-Crini N, Lichtfouse E, Torri G, Crini G. Fundamentals and Applications of Chitosan. SUSTAINABLE AGRICULTURE REVIEWS 35 2019. [DOI: 10.1007/978-3-030-16538-3_2] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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69
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Zhao YF, Zhao JY, Hu WZ, Ma K, Chao Y, Sun PJ, Fu XB, Zhang H. Synthetic poly(vinyl alcohol)–chitosan as a new type of highly efficient hemostatic sponge with blood-triggered swelling and high biocompatibility. J Mater Chem B 2019; 7:1855-1866. [PMID: 32255048 DOI: 10.1039/c8tb03181a] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthetic poly(vinyl alcohol)–chitosan as a new type of highly efficient hemostatic sponge with blood-triggered swelling and high biocompatibility.
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Affiliation(s)
- Yi-Fan Zhao
- Department of Anesthesiology
- Medical School of Chinese PLA
- Beijing 100853
- China
| | - Jing-Yu Zhao
- Department of Anesthesiology
- Medical School of Chinese PLA
- Beijing 100853
- China
| | - Wen-Zhi Hu
- Wound Healing Unit
- PLA General Hospital
- Beijing 100853
- China
| | - Kui Ma
- Wound Healing Unit
- PLA General Hospital
- Beijing 100853
- China
| | - Yong Chao
- Department of Medical engineering
- The First Affiliated Hospital of the PLA General Hospital
- Beijing 100048
- China
| | - Peng-Jun Sun
- Department of General Sugery
- The First Affiliated Hospital of the PLA General Hospital
- Beijing 100048
- China
| | - Xiao-Bing Fu
- Wound Healing Unit
- PLA General Hospital
- Beijing 100853
- China
| | - Hong Zhang
- Department of Anesthesiology
- PLA General Hospital
- Beijing 100853
- China
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70
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Fabrication of polylactic acid/carbon nanotubes/chitosan composite fibers by electrospinning for strawberry preservation. Int J Biol Macromol 2019; 121:1329-1336. [DOI: 10.1016/j.ijbiomac.2018.09.042] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 08/30/2018] [Accepted: 09/07/2018] [Indexed: 12/19/2022]
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71
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Padil VVT, Wacławek S, Černík M, Varma RS. Tree gum-based renewable materials: Sustainable applications in nanotechnology, biomedical and environmental fields. Biotechnol Adv 2018; 36:1984-2016. [PMID: 30165173 PMCID: PMC6209323 DOI: 10.1016/j.biotechadv.2018.08.008] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 07/22/2018] [Accepted: 08/24/2018] [Indexed: 12/22/2022]
Abstract
The prospective uses of tree gum polysaccharides and their nanostructures in various aspects of food, water, energy, biotechnology, environment and medicine industries, have garnered a great deal of attention recently. In addition to extensive applications of tree gums in food, there are substantial non-food applications of these commercial gums, which have gained widespread attention due to their availability, structural diversity and remarkable properties as 'green' bio-based renewable materials. Tree gums are obtainable as natural polysaccharides from various tree genera possessing exceptional properties, including their renewable, biocompatible, biodegradable, and non-toxic nature and their ability to undergo easy chemical modifications. This review focuses on non-food applications of several important commercially available gums (arabic, karaya, tragacanth, ghatti and kondagogu) for the greener synthesis and stabilization of metal/metal oxide NPs, production of electrospun fibers, environmental bioremediation, bio-catalysis, biosensors, coordination complexes of metal-hydrogels, and for antimicrobial and biomedical applications. Furthermore, polysaccharides acquired from botanical, seaweed, animal, and microbial origins are briefly compared with the characteristics of tree gum exudates.
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Affiliation(s)
- Vinod V T Padil
- Department of Nanomaterials in Natural Sciences, Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, Liberec 1 461 17, Czech Republic.
| | - Stanisław Wacławek
- Department of Nanomaterials in Natural Sciences, Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, Liberec 1 461 17, Czech Republic
| | - Miroslav Černík
- Department of Nanomaterials in Natural Sciences, Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, Liberec 1 461 17, Czech Republic.
| | - Rajender S Varma
- Water Resource Recovery Branch, Water Systems Division, National Risk Management Research Laboratory, U.S. Environmental Protection Agency, 26 West Martin Luther King Drive, MS 483, Cincinnati, Ohio 45268, USA; Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic.
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Irimia T, Ghica MV, Popa L, Anuţa V, Arsene AL, Dinu-Pîrvu CE. Strategies for Improving Ocular Drug Bioavailability and Corneal Wound Healing with Chitosan-Based Delivery Systems. Polymers (Basel) 2018; 10:E1221. [PMID: 30961146 PMCID: PMC6290606 DOI: 10.3390/polym10111221] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 10/29/2018] [Accepted: 11/02/2018] [Indexed: 01/30/2023] Open
Abstract
The main inconvenience of conventional eye drops is the rapid washout of the drugs due to nasolacrimal drainage or ophthalmic barriers. The ocular drug bioavailability can be improved by either prolonging retention time in the cul-de-sac or by increasing the ocular permeability. The focus of this review is to highlight some chitosan-based drug delivery approaches that proved to have good clinical efficacy and high potential for use in ophthalmology. They are exemplified by recent studies exploring in-depth the techniques and mechanisms in order to improve ocular bioavailability of the active substances. Used alone or in combination with other compounds with synergistic action, chitosan enables ocular retention time and corneal permeability. Associated with other stimuli-responsive polymers, it enhances the mechanical strength of the gels. Chitosan and its derivatives increase drug permeability through the cornea by temporarily opening tight junctions between epithelial cells. Different types of chitosan-based colloidal systems have the potential to overcome the ocular barriers without disturbing the vision process. Chitosan also plays a key role in improving corneal wound healing by stimulating the migration of keratinocytes when it is used alone or in combination with other compounds with synergistic action.
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Affiliation(s)
- Teodora Irimia
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
| | - Mihaela Violeta Ghica
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
| | - Lăcrămioara Popa
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
| | - Valentina Anuţa
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
| | - Andreea-Letiţia Arsene
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
| | - Cristina-Elena Dinu-Pîrvu
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy "Carol Davila", Bucharest 020956, Romania.
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Fereydouni N, Darroudi M, Movaffagh J, Shahroodi A, Butler AE, Ganjali S, Sahebkar A. Curcumin nanofibers for the purpose of wound healing. J Cell Physiol 2018; 234:5537-5554. [DOI: 10.1002/jcp.27362] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 08/17/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Narges Fereydouni
- Student Research Committee, Department of Modern Sciences and Technologies, Faculty of Medicine Mashhad University of Medical Sciences Mashhad Iran
| | - Majid Darroudi
- Nuclear Medicine Research Center Mashhad University of Medical Sciences Mashhad Iran
- Department of Modern Sciences and Technologies School of Medicine, Mashhad University of Medical Sciences Mashhad Iran
| | - Jebrail Movaffagh
- Department of Pharmaceutical Nanotechnology School of Pharmacy, Mashhad University of Medical Sciences Mashhad Iran
- Targeted Drug Delivery Research Center Pharmaceutical Technology Institute, Mashhad University of Medical Sciences Mashhad Iran
| | - Azadeh Shahroodi
- Department of Pharmaceutical Nanotechnology School of Pharmacy, Mashhad University of Medical Sciences Mashhad Iran
- Targeted Drug Delivery Research Center Pharmaceutical Technology Institute, Mashhad University of Medical Sciences Mashhad Iran
| | | | - Shiva Ganjali
- Department of Medical Biotechnology School of Medicine, Mashhad University of Medical Sciences Mashhad Iran
| | - Amirhossein Sahebkar
- Neurogenic Inflammation Research Center Mashhad University of Medical Sciences Mashhad Iran
- Biotechnology Research Center Pharmaceutical Technology Institute, Mashhad University of Medical Sciences Mashhad Iran
- School of Pharmacy, Mashhad University of Medical Sciences Mashhad Iran
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Preparation of chitosan/poly vinyl alcohol films and their inhibition of biofilm formation against Pseudomonas aeruginosa PAO1. Int J Biol Macromol 2018; 118:2131-2137. [DOI: 10.1016/j.ijbiomac.2018.07.061] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 07/06/2018] [Accepted: 07/12/2018] [Indexed: 02/02/2023]
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75
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Figueroa-Pizano M, Vélaz I, Peñas F, Zavala-Rivera P, Rosas-Durazo A, Maldonado-Arce A, Martínez-Barbosa M. Effect of freeze-thawing conditions for preparation of chitosan-poly (vinyl alcohol) hydrogels and drug release studies. Carbohydr Polym 2018; 195:476-485. [DOI: 10.1016/j.carbpol.2018.05.004] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 03/09/2018] [Accepted: 05/01/2018] [Indexed: 01/22/2023]
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76
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Asadian M, Onyshchenko I, Thukkaram M, Esbah Tabaei PS, Van Guyse J, Cools P, Declercq H, Hoogenboom R, Morent R, De Geyter N. Effects of a dielectric barrier discharge (DBD) treatment on chitosan/polyethylene oxide nanofibers and their cellular interactions. Carbohydr Polym 2018; 201:402-415. [PMID: 30241836 DOI: 10.1016/j.carbpol.2018.08.092] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 08/14/2018] [Accepted: 08/22/2018] [Indexed: 11/17/2022]
Abstract
In this study, chitosan (CS)/polyethylene oxide (PEO) nanofibrous mats (Ø: 166 ± 43 nm) were fabricated by electrospinning and subsequently surface-modified by a dielectric barrier discharge (DBD) sustained in argon, ammonia/helium or nitrogen. The surface properties of the CS/PEO nanofibers (NFs) before and after plasma treatment were characterized using contact angle measurements, X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). Additionally, the mechanical properties and PEO leaching in aqueous conditions of the different NFs under study were examined by tensile tests and nuclear magnetic resonance (1H NMR) spectroscopy respectively. Finally, cell behavior and cell morphology of human foreskin fibroblasts (HFFs) on the CS/PEO NFs were evaluated via live/dead fluorescence microscopy, MTT assays and SEM. The obtained results revealed that the surface free energy of the CS/PEO NFs was significantly increased after plasma modification, which was correlated to an enrichment in surface oxygen (Ar, N2, NH3/He) and nitrogen (N2, NH3/He) functional groups. All performed plasma treatments also led to an increase in ultimate tensile strength, most likely due to an increased fiber-to-fiber friction. Additionally, it was also observed that N2 plasma treatment resulted in a decrease in PEO release, which could be attributed to more pronounced surface cross-linking. Cellular interactions on the CS/PEO NFs also significantly increased due to the performed plasma treatments. The best cellular response was noted for the Ar plasma modification although the surface hydrophilicity was the lowest in this case. These observations thus suggest that not only the wettability characteristics but also the presence of distinct functional groups on plasma-treated CS/PEO NFs have a significant influence on the observed enhanced cellular interactions.
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Affiliation(s)
- Mahtab Asadian
- Department of Applied Physics, Research Unit Plasma Technology (RUPT), Faculty of Engineering & Architecture, Ghent University, Sint-Pietersnieuwstraat 41, B4, 9000, Ghent, Belgium.
| | - Iuliia Onyshchenko
- Department of Applied Physics, Research Unit Plasma Technology (RUPT), Faculty of Engineering & Architecture, Ghent University, Sint-Pietersnieuwstraat 41, B4, 9000, Ghent, Belgium.
| | - Monica Thukkaram
- Department of Applied Physics, Research Unit Plasma Technology (RUPT), Faculty of Engineering & Architecture, Ghent University, Sint-Pietersnieuwstraat 41, B4, 9000, Ghent, Belgium.
| | - Parinaz Saadat Esbah Tabaei
- Department of Applied Physics, Research Unit Plasma Technology (RUPT), Faculty of Engineering & Architecture, Ghent University, Sint-Pietersnieuwstraat 41, B4, 9000, Ghent, Belgium.
| | - Joachim Van Guyse
- Department of Organic and Macromolecular Chemistry, Supramolecular Chemistry Group, Faculty of Sciences, Ghent University, Krijgslaan 281, S4, 9000, Ghent, Belgium.
| | - Pieter Cools
- Department of Applied Physics, Research Unit Plasma Technology (RUPT), Faculty of Engineering & Architecture, Ghent University, Sint-Pietersnieuwstraat 41, B4, 9000, Ghent, Belgium.
| | - Heidi Declercq
- Department of Basic Medical Sciences, Tissue Engineering Group, Faculty of Medicine and Health Sciences, Ghent University, De Pintelaan 185, B3, 9000, Ghent, Belgium.
| | - Richard Hoogenboom
- Department of Organic and Macromolecular Chemistry, Supramolecular Chemistry Group, Faculty of Sciences, Ghent University, Krijgslaan 281, S4, 9000, Ghent, Belgium.
| | - Rino Morent
- Department of Applied Physics, Research Unit Plasma Technology (RUPT), Faculty of Engineering & Architecture, Ghent University, Sint-Pietersnieuwstraat 41, B4, 9000, Ghent, Belgium.
| | - Nathalie De Geyter
- Department of Applied Physics, Research Unit Plasma Technology (RUPT), Faculty of Engineering & Architecture, Ghent University, Sint-Pietersnieuwstraat 41, B4, 9000, Ghent, Belgium.
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Preparation and Properties of Sodium Carboxymethyl Cellulose/Sodium Alginate/Chitosan Composite Film. COATINGS 2018. [DOI: 10.3390/coatings8080291] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A sodium alginate/chitosan solution was prepared by dissolving sodium alginate, chitosan, and glycerol in an acetic acid solution. This solution was then combined with a sodium carboxymethyl cellulose solution and the mixture was cast onto a glass plate and dried at a constant temperature of 60 °C. Then, a carboxymethyl cellulose/sodium alginate/chitosan composite film was obtained by immersing the film in a solution of a cross-linking agent, CaCl2, and air-drying the resulting material. First, the most advantageous contents of the three precursors in the casting solution were determined by a completely random design test method. Thereafter, a comprehensive orthogonal experimental design was applied to select the optimal mass ratio of the three precursors. The composite film obtained with sodium alginate, sodium carboxymethyl cellulose, and chitosan contents of 1.5%, 0.5%, and 1.5%, respectively, in the casting solution displayed excellent tensile strength, water vapor transmission rate, and elongation after fracture. Moreover, the presence of chitosan successfully inhibited the growth and reproduction of microorganisms. The composite film exhibited antibacterial rates of 95.7% ± 5.4% and 93.4% ± 4.7% against Escherichia coli and Staphylococcus aureus, respectively. Therefore, the composite film is promising for antibacterial food packaging applications.
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78
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Sokolova MP, Smirnov MA, Samarov AA, Bobrova NV, Vorobiov VK, Popova EN, Filippova E, Geydt P, Lahderanta E, Toikka AM. Plasticizing of chitosan films with deep eutectic mixture of malonic acid and choline chloride. Carbohydr Polym 2018; 197:548-557. [PMID: 30007646 DOI: 10.1016/j.carbpol.2018.06.037] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 06/06/2018] [Accepted: 06/06/2018] [Indexed: 01/27/2023]
Abstract
Chitosan (CS) films containing deep eutectic solvent (DES) based on malonic acid (MA) and choline chloride (ChCl) were successfully prepared by solution casting method by using DES content ranging from 0 to 82 wt%. A strong interaction of CS with the components of DES was demonstrated by analyses of water sorption isotherms, atomic force microscopy and FTIR results. The plasticizing effect of the MA and ChCl mixture on the CS matrix was shown by static bulk mechanical measurements, thermal analysis and quantitative nanomechanical mapping (QNM). Elongation at break increased from 3 to 62% at increase of DES content from 0 to 67 wt%, while further increase of DES content led to the decreasing of maximal elongation. Introduction of DES into CS films led to the appearance of glass transition temperature in the region +2 - -2.3 °C. QNM results indicated homogeneity of the films containing up to 75 wt% of DES.
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Affiliation(s)
- Maria P Sokolova
- Saint Petersburg State University, Universitetsky pr. 26, Peterhof, Saint Petersburg, 198504, Russia; Lappeenranta University of Technology, Department of Physics, Skinnarilankatu 34, Lappeenranta, 53850, Finland.
| | - Michael A Smirnov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg, 199004, Russia; ITMO University, Saint Petersburg, 197101, Russia.
| | - Artemiy A Samarov
- Saint Petersburg State University, Universitetsky pr. 26, Peterhof, Saint Petersburg, 198504, Russia.
| | - Natalya V Bobrova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg, 199004, Russia.
| | | | - Elena N Popova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg, 199004, Russia.
| | - Elizaveta Filippova
- Lappeenranta University of Technology, Department of Physics, Skinnarilankatu 34, Lappeenranta, 53850, Finland.
| | - Pavel Geydt
- Lappeenranta University of Technology, Department of Physics, Skinnarilankatu 34, Lappeenranta, 53850, Finland.
| | - Erkki Lahderanta
- Lappeenranta University of Technology, Department of Physics, Skinnarilankatu 34, Lappeenranta, 53850, Finland.
| | - Alexander M Toikka
- Saint Petersburg State University, Universitetsky pr. 26, Peterhof, Saint Petersburg, 198504, Russia.
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Chitosan/pvp-based mucoadhesive membranes as a promising delivery system of betamethasone-17-valerate for aphthous stomatitis. Carbohydr Polym 2018; 190:339-345. [DOI: 10.1016/j.carbpol.2018.02.079] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 01/17/2018] [Accepted: 02/23/2018] [Indexed: 11/24/2022]
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80
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Synthesis and Characterization of Chitosan-Coated Cobalt Ferrite Nanoparticles and Their Antimicrobial Activity. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-0870-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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81
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Iglesias N, Galbis E, Valencia C, De-Paz MV, Galbis JA. Reversible pH-Sensitive Chitosan-Based Hydrogels. Influence of Dispersion Composition on Rheological Properties and Sustained Drug Delivery. Polymers (Basel) 2018; 10:E392. [PMID: 30966427 PMCID: PMC6415225 DOI: 10.3390/polym10040392] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 03/23/2018] [Accepted: 03/29/2018] [Indexed: 01/08/2023] Open
Abstract
The present work deals with the synthesis of micro-structured biomaterials based on chitosan (CTS) for their applications as biocompatible carriers of drugs and bioactive compounds. Twelve dispersions were prepared by means of functional cross-linking with tricarballylic acid (TCA); they were characterized by Fourier transform infrared spectroscopy (FT-IR), modulated temperature differential scanning calorimetry (MTDSC) and scanning electron microscopy (SEM), and their rheological properties were studied. To the best of the authors' knowledge, no study has been carried out on the influence of CTS concentration, degree of cross-linking and drug loading on chitosan hydrogels for drug delivery systems (DDS) and is investigated herein for the first time. The influence of dispersion composition (polymer concentration and degree of cross-linking) revealed to exert a marked impact on its rheological properties, going from liquid-like to viscoelastic gels. The release profiles of a model drug, diclofenac sodium (DCNa), as well as their relationships with polymer concentration, drug loading and degree of cross-linking were evaluated. Similar to the findings on rheological properties, a wide range of release profiles was encountered. These formulations were found to display a well-controlled drug release strongly dependent on the formulation composition. Cumulative drug release under physiological conditions for 96 h ranged from 8% to 67%. For comparative purpose, Voltaren emulgel® from Novartis Pharmaceuticals was also investigated and the latter was the formulation with the highest cumulative drug release (85%). Some formulations showed similar spreadability values to the commercial hydrogel. The comparative study of three batches confirmed the reproducibility of the method, leading to systems particularly suitable for their use as drug carriers.
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Affiliation(s)
- Nieves Iglesias
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain.
| | - Elsa Galbis
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain.
| | - Concepción Valencia
- Departamento de Ingeniería Química, Campus de "El Carmen", Universidad de Huelva, 21071 Huelva, Spain.
- Pro2TecS-Chemical Process and Product Technology Research Center, Universidad de Huelva, 21071 Huelva, Spain.
| | - M-Violante De-Paz
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain.
| | - Juan A Galbis
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain.
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Yu Z, Li B, Chu J, Zhang P. Silica in situ enhanced PVA/chitosan biodegradable films for food packages. Carbohydr Polym 2018; 184:214-220. [DOI: 10.1016/j.carbpol.2017.12.043] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 12/12/2017] [Accepted: 12/14/2017] [Indexed: 02/09/2023]
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83
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PEGylated chitosan nanoparticles with embedded bismuth sulfide for dual-wavelength fluorescent imaging and photothermal therapy. Carbohydr Polym 2018; 184:445-452. [DOI: 10.1016/j.carbpol.2018.01.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 12/25/2017] [Accepted: 01/02/2018] [Indexed: 01/21/2023]
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84
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Liu Y, Wang S, Lan W. Fabrication of antibacterial chitosan-PVA blended film using electrospray technique for food packaging applications. Int J Biol Macromol 2018; 107:848-854. [DOI: 10.1016/j.ijbiomac.2017.09.044] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Revised: 08/30/2017] [Accepted: 09/14/2017] [Indexed: 12/11/2022]
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85
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Guo T, Tian X, Li B, Yang T, Li Y. Repair of articular cartilage and subchondral defects in rabbit knee joints with a polyvinyl alcohol/nano-hydroxyapatite/polyamide 66 biological composite material. J Orthop Surg Res 2017; 12:176. [PMID: 29141674 PMCID: PMC5688619 DOI: 10.1186/s13018-017-0666-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 10/26/2017] [Indexed: 02/05/2023] Open
Abstract
Background This study sought to prepare a new PVA/n-HA/PA66 composite to investigate the repair of articular cartilage and subchondral defects in rabbit knee joints. Methods A 5 × 5 × 5 mm-sized defect was created in the patellofemoral joints of 72 healthy adult New Zealand rabbits. The rabbits were then randomly divided into three groups (n = 24): PVA/n-HA+PA66 group, polyvinyl alcohol (PVA) group, and control (untreated) group. Cylindrical PVA/n-HA+PA66, 5 × 5 mm, comprised an upper PVA layer and a lower n-HA+PA66 layer. Macroscopic and histological evaluations were performed at 4, 8, 12, and 24 weeks, postoperatively. Type II collagen was measured by immunohistochemical staining. The implant/cartilage and bone interfaces were observed by scanning electron microscopy. Results At 24 weeks postoperatively, the lower PVA/n-HA+PA66 layer became surrounded by cartilage, with no obvious degeneration. In the PVA group, an enlarged space was observed between the implant and the host tissue that had undergone degeneration. In the control group, the articular cartilage had become calcified. In the PVA/n-HA+PA66 group, positive type II collagen staining was observed between the composite and the surrounding cartilage and on the implant surface. In the PVA group, positive staining was slightly increased between the PVA and the surrounding cartilage, but reduced on the PVA surface. In the control group, reduced staining was observed throughout. Scanning electron microscopy showed increased bone tissue in the lower n-HA+PA66 layer that was in close approximation with the upper PVA layer of the composite. In the PVA group, the bone tissue around the material had receded, and in the control group, the defect was filled with bone tissue, while the superior aspect of the defect was filled with disordered, fibrous tissue. Conclusion The diphase biological composite material PVA/n-HA+PA66 exhibits good histocompatibility and offers a satisfactory substitute for articular cartilage and subchondral bone.
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Affiliation(s)
- Tao Guo
- Department of Orthopedics, Guizhou Province People's Hospital, Guiyang, Guizhou province, 550002, China.
| | - Xiaobin Tian
- Department of Orthopedics, Guizhou Province People's Hospital, Guiyang, Guizhou province, 550002, China
| | - Bo Li
- Department of Orthopedics, Guizhou Province People's Hospital, Guiyang, Guizhou province, 550002, China
| | - Tianfu Yang
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan province, 610041, China
| | - Yubao Li
- Nanometer Analytical and Testing Center, Sichuan University, Chengdu, Sichuan province, 610041, China
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86
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Oryan A, Sahvieh S. Effectiveness of chitosan scaffold in skin, bone and cartilage healing. Int J Biol Macromol 2017; 104:1003-1011. [DOI: 10.1016/j.ijbiomac.2017.06.124] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Revised: 06/20/2017] [Accepted: 06/30/2017] [Indexed: 01/11/2023]
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87
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Soares SF, Rodrigues MI, Trindade T, Daniel-da-Silva AL. Chitosan-silica hybrid nanosorbents for oil removal from water. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.04.076] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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88
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Rodionov IA, Grinberg NV, Burova TV, Grinberg VY, Shabatina TI, Lozinsky VI. Cryostructuring of polymer systems. 44. Freeze-dried and then chemically cross-linked wide porous cryostructurates based on serum albumin. E-POLYMERS 2017. [DOI: 10.1515/epoly-2016-0317] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
AbstractSpongy cryostructurates based on bovine serum albumin (BSA) have been prepared via freezing the aqueous solutions of the protein followed by freeze-drying and subsequent cross-linking BSA macromolecules each together within the macropore walls using N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (EDC) dissolved in ethanol. The gel-fraction yield values testifies high efficiency (>93%) of the protein building-up into the 3D polymeric network. Poor swelling of the pore walls of BSA-based sponges in water (1–2 g H2O per 1 g of dry polymer) and even in the powerful protein-solubilizing media (8 m urea, 5 m guanidine hydrochloride, 1% SDS) indicates the multipoint character of albumin cross-linking via the pendant peptide bonds. As a result, strong cross-linking is able (as revealed by HS-DSC) to inhibit BSA thermal denaturation. The size of wide pores in the obtained cryostructures ranges from 40 to 250 μm and mainly depends on the freezing temperature.
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Affiliation(s)
- Ilya A. Rodionov
- A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russian Federation
| | - Natalia V. Grinberg
- A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russian Federation
| | - Tatiana V. Burova
- A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russian Federation
| | - Valery Ya. Grinberg
- A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russian Federation
| | - Tatyana I. Shabatina
- M.V.Lomonosov Moscow State University, Chemical Faculty, Leninskie gory 1, 119991 Moscow, Russian Federation
| | - Vladimir I. Lozinsky
- A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russian Federation
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89
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Kobylinskyy S, Shtompel’ V, Riabov S. Polymer blends based on polyurethane ionomer and chitosan. Polym J 2017. [DOI: 10.15407/polymerj.39.02.115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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90
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Rizwan M, Yahya R, Hassan A, Yar M, Azzahari AD, Selvanathan V, Sonsudin F, Abouloula CN. pH Sensitive Hydrogels in Drug Delivery: Brief History, Properties, Swelling, and Release Mechanism, Material Selection and Applications. Polymers (Basel) 2017; 9:E137. [PMID: 30970818 PMCID: PMC6432076 DOI: 10.3390/polym9040137] [Citation(s) in RCA: 288] [Impact Index Per Article: 41.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 04/06/2017] [Accepted: 04/06/2017] [Indexed: 01/01/2023] Open
Abstract
Improving the safety efficacy ratio of existing drugs is a current challenge to be addressed rather than the development of novel drugs which involve much expense and time. The efficacy of drugs is affected by a number of factors such as their low aqueous solubility, unequal absorption along the gastrointestinal (GI) tract, risk of degradation in the acidic milieu of the stomach, low permeation of the drugs in the upper GI tract, systematic side effects, etc. This review aims to enlighten readers on the role of pH sensitive hydrogels in drug delivery, their mechanism of action, swelling, and drug release as a function of pH change along the GI tract. The basis for the selection of materials, their structural features, physical and chemical properties, the presence of ionic pendant groups, and the influence of their pKa and pKb values on the ionization, consequent swelling, and targeted drug release are also highlighted.
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Affiliation(s)
- Muhammad Rizwan
- Department of Chemistry, Universiti Malaya, 50603 Kuala Lumpur, Malaysia.
| | - Rosiyah Yahya
- Department of Chemistry, Universiti Malaya, 50603 Kuala Lumpur, Malaysia.
| | - Aziz Hassan
- Department of Chemistry, Universiti Malaya, 50603 Kuala Lumpur, Malaysia.
| | - Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, 54000 Lahore, Pakistan.
| | | | - Vidhya Selvanathan
- Department of Chemistry, Universiti Malaya, 50603 Kuala Lumpur, Malaysia.
| | - Faridah Sonsudin
- Centre for Foundation Studies in Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia.
| | - Cheyma Naceur Abouloula
- Department of Physics, Faculty of Science Semlalia Marrakesh, Cadi Ayyad University, 40000 Marrakesh, Morocco.
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91
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Ghasemi Hamidabadi H, Rezvani Z, Nazm Bojnordi M, Shirinzadeh H, Seifalian AM, Joghataei MT, Razaghpour M, Alibakhshi A, Yazdanpanah A, Salimi M, Mozafari M, Urbanska AM, Reis RL, Kundu SC, Gholipourmalekabadi M. Chitosan-Intercalated Montmorillonite/Poly(vinyl alcohol) Nanofibers as a Platform to Guide Neuronlike Differentiation of Human Dental Pulp Stem Cells. ACS APPLIED MATERIALS & INTERFACES 2017; 9:11392-11404. [PMID: 28117963 DOI: 10.1021/acsami.6b14283] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
In this study, we present a novel chitosan-intercalated montmorillonite/poly(vinyl alcohol) (OMMT/PVA) nanofibrous mesh as a microenvironment for guiding differentiation of human dental pulp stem cells (hDPSCs) toward neuronlike cells. The OMMT was prepared through ion exchange reaction between the montmorillonite (MMT) and chitosan. The PVA solutions containing various concentrations of OMMT were electrospun to form 3D OMMT-PVA nanofibrous meshes. The biomechanical and biological characteristics of the nanofibrous meshes were evaluated by ATR-FTIR, XRD, SEM, MTT, and LDH specific activity, contact angle, and DAPI staining. They were carried out for mechanical properties, overall viability, and toxicity of the cells. The hDPSCs were seeded on the prepared scaffolds and induced with neuronal specific differentiation media at two differentiation stages (2 days at preinduction stage and 6 days at induction stage). The neural differentiation of the cells cultured on the meshes was evaluated by determining the expression of Oct-4, Nestin, NF-M, NF-H, MAP2, and βIII-tubulin in the cells after preinduction, at induction stages by real-time PCR (RT-PCR) and immunostaining. All the synthesized nanofibers exhibited a homogeneous morphology with a favorable mechanical behavior. The population of the cells differentiated into neuronlike cells in all the experimental groups was significantly higher than that in control group. The expression level of the neuronal specific markers in the cells cultured on 5% OMMT/PVA meshes was significantly higher than the other groups. This study demonstrates the feasibility of the OMMT/PVA artificial nerve graft cultured with hDPSCs for regeneration of damaged neural tissues. These fabricated matrices may have a potential in neural tissue engineering applications.
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Affiliation(s)
| | - Zahra Rezvani
- Bioengineering Research Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC) , P.O. Box 14155-4777, Tehran, Iran
| | | | - Haji Shirinzadeh
- Semiconductor Department, Materials and Energy Research Center (MERC) , P.O. Box 14155-4777, Tehran, Iran
| | - Alexander M Seifalian
- Nanotechnology and Regenerative Medicine Commercialisation centre (Ltd) The London BioScience Innovation Centre , London, NW1 0NH, United Kingdom
| | - Mohammad Taghi Joghataei
- Cellular and Molecular Research Center, Iran University of Medical Sciences (IUMS) , Tehran, Iran
| | - Mojgan Razaghpour
- Amirkabir University of Technology , Textile Department, No. 424, Tehran, Iran
| | | | - Abolfazl Yazdanpanah
- Biomaterials Group, Faculty of Biomedical Engineering (Center of Excellence), Amirkabir University of Technology , P.O. Box 15875-4413, Tehran, Iran
| | | | - Masoud Mozafari
- Bioengineering Research Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC) , P.O. Box 14155-4777, Tehran, Iran
- Cellular and Molecular Research Center, Iran University of Medical Sciences (IUMS) , Tehran, Iran
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences , Tehran, Iran
| | - Aleksandra M Urbanska
- Division of Digestive and Liver Disease, Department of Medicine and Herbert Irving Comprehensive Cancer Center, Columbia University , New York, New York 10032, United States
| | - Rui L Reis
- 3Bs Research Group, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho , AvePark 4805-017 Barco, Guimaraes, Portugal
| | - Subhas C Kundu
- 3Bs Research Group, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho , AvePark 4805-017 Barco, Guimaraes, Portugal
| | - Mazaher Gholipourmalekabadi
- Cellular and Molecular Research Center, Iran University of Medical Sciences (IUMS) , Tehran, Iran
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences , Tehran, Iran
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92
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Chetouani A, Elkolli M, Bounekhel M, Benachour D. Chitosan/oxidized pectin/PVA blend film: mechanical and biological properties. Polym Bull (Berl) 2017. [DOI: 10.1007/s00289-017-1953-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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93
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Bisen D, Bhatt R, Bajpai A, Bajpai R, Katare R. Reverse indentation size effects in gamma irradiated blood compatible blend films of chitosan-poly (vinyl alcohol) for possible medical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:982-993. [DOI: 10.1016/j.msec.2016.11.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 10/12/2016] [Accepted: 11/02/2016] [Indexed: 10/20/2022]
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94
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Mei L, Fan R, Li X, Wang Y, Han B, Gu Y, Zhou L, Zheng Y, Tong A, Guo G. Nanofibers for improving the wound repair process: the combination of a grafted chitosan and an antioxidant agent. Polym Chem 2017. [DOI: 10.1039/c7py00038c] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Wound healing, a complex process involving several important biomolecules and pathways, requires efficient dressings to enhance the therapy effects.
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95
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Radwan-Pragłowska J, Piątkowski M, Janus Ł, Bogdał D, Matysek D. Biodegradable, pH-responsive chitosan aerogels for biomedical applications. RSC Adv 2017. [DOI: 10.1039/c6ra27474a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Biodegradable chitosan aerogels with advanced properties for biomedical applications are obtained in a two-step process using biotolerant chemicals, MW irradiation and lyophilisation.
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Affiliation(s)
- J. Radwan-Pragłowska
- Department of Biotechnology and Physical Chemistry
- Faculty of Chemical Engineering and Technology
- Cracow University of Technology
- Cracow
- Poland
| | - M. Piątkowski
- Department of Biotechnology and Physical Chemistry
- Faculty of Chemical Engineering and Technology
- Cracow University of Technology
- Cracow
- Poland
| | - Ł. Janus
- Department of Biotechnology and Physical Chemistry
- Faculty of Chemical Engineering and Technology
- Cracow University of Technology
- Cracow
- Poland
| | - D. Bogdał
- Department of Biotechnology and Physical Chemistry
- Faculty of Chemical Engineering and Technology
- Cracow University of Technology
- Cracow
- Poland
| | - D. Matysek
- Faculty of Mining and Geology
- Technical University of Ostrava
- Ostrava
- Czech Republic
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96
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Zupančič Š, Potrč T, Baumgartner S, Kocbek P, Kristl J. Formulation and evaluation of chitosan/polyethylene oxide nanofibers loaded with metronidazole for local infections. Eur J Pharm Sci 2016; 95:152-160. [DOI: 10.1016/j.ejps.2016.10.030] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 10/21/2016] [Accepted: 10/28/2016] [Indexed: 11/29/2022]
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97
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Yasasvini S, Anusa RS, VedhaHari BN, Prabhu PC, RamyaDevi D. Topical hydrogel matrix loaded with Simvastatin microparticles for enhanced wound healing activity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 72:160-167. [PMID: 28024572 DOI: 10.1016/j.msec.2016.11.038] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 11/08/2016] [Accepted: 11/10/2016] [Indexed: 01/22/2023]
Abstract
A prolonged release drug delivery system was developed by loading Simvastatin-chitosan microparticles into poly vinyl alcohol (PVA) hydrogels for enhanced wound healing efficiency. The microparticles prepared by ionic gelation method with varying composition of chitosan and surfactants (Tween 80/Pluronic F-127) were optimized for entrapment efficiency, morphology and drug-polymer interactions. Microparticles prepared with 0.3% between 80 and 0.5:5 chitosan: drug ratio showed maximum entrapment efficiency of 82% with spherical morphology and mild interaction between drug and chitosan. 5% PVA solutions loaded with pure drug and drug loaded microparticles at three different doses (2.5mg, 5mg and 10mg equivalent of drug) were chemically cross linked using gluteraldehyde and HCl. The formulated hydrogels were optimized for swelling, in vitro release behavior and in vivo wound healing effect. Hydrogels containing 2.5mg equivalent dose of Simvastatin microparticles exhibited maximum cumulative percentage drug release of 92% (n=3) at the end of 7days. The in vitro drug release data was supported by the higher swelling index of the low dose hydrogels. The in vivo wound healing study was performed using Wistar rats (n=30, 5 groups with 6 animals in each group) for the formulated hydrogels (at 3 doses) and compared with the untreated animals and the positive control group treated with conventional topical Simvastatin ointment (1%). The wound healing effect was comparable to the in vitro results, wherein the animals treated with low dose hydrogels (replaced every 7days) exhibited considerable reduction in the wound area compared to medium and high dose hydrogels. Statistically significant difference (P<0.05) was observed in the wound area of the animals treated with low dose hydrogels compared to 1% ointment and untreated animals, as estimated by two-way ANOVA. The histopathology images of the different groups of animals also displayed the comparative changes in the wound healing process. Hence, the incorporation of Simvastatin-chitosan microparticles in PVA hydrogels has demonstrated significant wound healing efficiency at optimum dose.
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Affiliation(s)
- S Yasasvini
- School of Chemical and Biotechnology, SASTRA University, Thanjavur 613401, Tamil Nadu, India
| | - R S Anusa
- School of Chemical and Biotechnology, SASTRA University, Thanjavur 613401, Tamil Nadu, India
| | - B N VedhaHari
- School of Chemical and Biotechnology, SASTRA University, Thanjavur 613401, Tamil Nadu, India
| | - P C Prabhu
- Central Animal Facility, SASTRA University, Thanjavur 613401, Tamil Nadu, India
| | - D RamyaDevi
- School of Chemical and Biotechnology, SASTRA University, Thanjavur 613401, Tamil Nadu, India.
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98
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Hu C, Deng Y, Hu H, Duan Y, Zhai K. Adsorption and intercalation of low and medium molar mass chitosans on/in the sodium montmorillonite. Int J Biol Macromol 2016; 92:1191-1196. [DOI: 10.1016/j.ijbiomac.2016.08.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 08/02/2016] [Accepted: 08/03/2016] [Indexed: 10/21/2022]
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99
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Lewandowska K, Sionkowska A, Grabska S, Kaczmarek B. Surface and thermal properties of collagen/hyaluronic acid blends containing chitosan. Int J Biol Macromol 2016; 92:371-376. [DOI: 10.1016/j.ijbiomac.2016.07.055] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 07/12/2016] [Accepted: 07/14/2016] [Indexed: 10/21/2022]
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100
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Mahdavinia GR, Hosseini R, Darvishi F, Sabzi M. The release of cefazolin from chitosan/polyvinyl alcohol/sepiolite nanocomposite hydrogel films. IRANIAN POLYMER JOURNAL 2016. [DOI: 10.1007/s13726-016-0480-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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