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Sánchez-Cid P, Alonso-González M, Jiménez-Rosado M, Benhnia MREI, Ruiz-Mateos E, Ostos FJ, Romero A, Perez-Puyana VM. Effect of different crosslinking agents on hybrid chitosan/collagen hydrogels for potential tissue engineering applications. Int J Biol Macromol 2024; 263:129858. [PMID: 38423911 DOI: 10.1016/j.ijbiomac.2024.129858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 12/02/2023] [Accepted: 01/29/2024] [Indexed: 03/02/2024]
Abstract
Tissue engineering (TE) demands scaffolds that have the necessary resistance to withstand the mechanical stresses once implanted in our body, as well as excellent biocompatibility. Hydrogels are postulated as interesting materials for this purpose, especially those made from biopolymers. In this study, the microstructure and rheological performance, as well as functional and biological properties of chitosan and collagen hydrogels (CH/CG) crosslinked with different coupling agents, both natural such as d-Fructose (F), genipin (G) and transglutaminase (T) and synthetic, using a combination of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride with N-hydroxysuccinimide (EDC/NHS) will be assessed. FTIR tests were carried out to determine if the proposed crosslinking reactions for each crosslinking agent occurred as expected, obtaining positive results in this aspect. Regarding the characterization of the properties of each system, two main trends were observed, from which it could be established that crosslinking with G and EDC-NHS turned out to be more effective and beneficial than with the other two crosslinking agents, producing significant improvements with respect to the base CH/CG hydrogel. In addition, in vitro tests demonstrated the potential application in TE of these systems, especially for those crosslinked with G, T and EDC-NHS.
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Affiliation(s)
- Pablo Sánchez-Cid
- Departmento de Ingeniería Química, Facultad de Química, Escuela Politécnica Superior, Universidad de Sevilla, 41012 Sevilla, Spain.
| | - María Alonso-González
- Departmento de Ingeniería Química, Facultad de Química, Escuela Politécnica Superior, Universidad de Sevilla, 41012 Sevilla, Spain.
| | - Mercedes Jiménez-Rosado
- Departmento de Ingeniería Química, Facultad de Química, Escuela Politécnica Superior, Universidad de Sevilla, 41012 Sevilla, Spain.
| | - Mohammed Rafii-El-Idrissi Benhnia
- Departmento de Bioquímica Médica y Biología Molecular e Inmunología, Facultad de Medicina, Universidad de Sevilla, 41009 Sevilla, Spain; Instituto de Biomedicina de Sevilla, IBiS/Virgen del Rocío University Hospital/CSIC/Universidad de Sevilla, Unidad Clínica de Enfermedades Infecciosas, Microbiología y Parasitología, 41013 Sevilla, Spain.
| | - E Ruiz-Mateos
- Instituto de Biomedicina de Sevilla, IBiS/Virgen del Rocío University Hospital/CSIC/Universidad de Sevilla, Unidad Clínica de Enfermedades Infecciosas, Microbiología y Parasitología, 41013 Sevilla, Spain.
| | - Francisco J Ostos
- Departmento de Bioquímica Médica y Biología Molecular e Inmunología, Facultad de Medicina, Universidad de Sevilla, 41009 Sevilla, Spain; Instituto de Biomedicina de Sevilla, IBiS/Virgen del Rocío University Hospital/CSIC/Universidad de Sevilla, Unidad Clínica de Enfermedades Infecciosas, Microbiología y Parasitología, 41013 Sevilla, Spain.
| | - Alberto Romero
- Departmento de Ingeniería Química, Facultad de Química, Escuela Politécnica Superior, Universidad de Sevilla, 41012 Sevilla, Spain.
| | - Víctor M Perez-Puyana
- Departmento de Ingeniería Química, Facultad de Química, Escuela Politécnica Superior, Universidad de Sevilla, 41012 Sevilla, Spain.
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2
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Mohite P, Rahayu P, Munde S, Ade N, Chidrawar VR, Singh S, Jayeoye TJ, Prajapati BG, Bhattacharya S, Patel RJ. Chitosan-Based Hydrogel in the Management of Dermal Infections: A Review. Gels 2023; 9:594. [PMID: 37504473 PMCID: PMC10379151 DOI: 10.3390/gels9070594] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 07/11/2023] [Accepted: 07/18/2023] [Indexed: 07/29/2023] Open
Abstract
The main objective of this review is to provide a comprehensive overview of the current evidence regarding the use of chitosan-based hydrogels to manage skin infections. Chitosan, a naturally occurring polysaccharide derived from chitin, possesses inherent antimicrobial properties, making it a promising candidate for treating various dermal infections. This review follows a systematic approach to analyze relevant studies that have investigated the effectiveness of chitosan-based hydrogels in the context of dermal infections. By examining the available evidence, this review aims to evaluate these hydrogels' overall efficacy, safety, and potential applications for managing dermal infections. This review's primary focus is to gather and analyze data from different recent studies about chitosan-based hydrogels combating dermal infections; this includes assessing their ability to inhibit the growth of microorganisms and reduce infection-related symptoms. Furthermore, this review also considers the safety profile of chitosan-based hydrogels, examining any potential adverse effects associated with their use. This evaluation is crucial to ensure that these hydrogels can be safely utilized in the management of dermal infections without causing harm to patients. The review aims to provide healthcare professionals and researchers with a comprehensive understanding of the current evidence regarding the use of chitosan-based hydrogels for dermal infection management. The findings from this review can contribute to informed decision-making and the development of potential treatment strategies in this field.
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Affiliation(s)
- Popat Mohite
- Department of Pharmaceutical Quality Assurance, A.E.T.'s St. John Institute of Pharmacy and Research, Palghar 401404, Maharashtra, India
| | - Pudji Rahayu
- Department of Pharmacy of Tanjung Karang State Health Polytechnic, Soekarno-Hatta, Bandar Lampung 35145, Lampung, Indonesia
| | - Shubham Munde
- Department of Pharmaceutical Quality Assurance, A.E.T.'s St. John Institute of Pharmacy and Research, Palghar 401404, Maharashtra, India
| | - Nitin Ade
- Department of Pharmaceutical Quality Assurance, A.E.T.'s St. John Institute of Pharmacy and Research, Palghar 401404, Maharashtra, India
| | - Vijay R Chidrawar
- SVKM's NMIMS School of Pharmacy and Technology Management, Jadcharla 509301, Telangana, India
| | - Sudarshan Singh
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Titilope J Jayeoye
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Bhupendra G Prajapati
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Shree S. K. Patel College of Pharmaceutical Education and Research, Ganpat University, Mehsana 384012, Gujarat, India
| | - Sankha Bhattacharya
- Department of Pharmaceutics, School of Pharmacy and Technology Management, SVKM's NMIMS Deemed-to-be-University, Shirpur 425405, Maharashtra, India
| | - Ravish J Patel
- Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology, Anand 388421, Gujarat, India
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Kaur K, Paiva SS, Caffrey D, Cavanagh BL, Murphy CM. Injectable chitosan/collagen hydrogels nano-engineered with functionalized single wall carbon nanotubes for minimally invasive applications in bone. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 128:112340. [PMID: 34474890 DOI: 10.1016/j.msec.2021.112340] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 07/22/2021] [Accepted: 07/26/2021] [Indexed: 10/20/2022]
Abstract
Mechanical robustness is an essential consideration in the development of hydrogel platforms for bone regeneration, and despite significant advances in the field of injectable hydrogels, many fail in this regard. Inspired by the mechanical properties of carboxylated single wall carbon nanotubes (COOH-SWCNTs) and the biological advantages of natural polymers, COOH-SWCNTs were integrated into chitosan and collagen to formulate mechanically robust, injectable and thermoresponsive hydrogels with interconnected molecular structure for load-bearing applications. This study presents a complete characterisation of the structural and biological properties, and mechanism of gelation of these novel formulated hydrogels. Results demonstrate that β-glycerophosphate (β-GP) and temperature play important roles in attaining gelation at physiological conditions, and the integration with COOH-SWCNTs significantly changed the structural morphology of the hydrogels to a more porous and aligned network. This led to a crystalline structure and significantly increased the mechanical strength of the hydrogels from kPa to MPa, which is closer to the mechanical strength of the bone. Moreover, increased osteoblast proliferation and rapid adsorption of hydroxyapatite on the surface of the hydrogels indicates increased bioactivity with addition of COOH-SWCNTs. Therefore, these nano-engineered hydrogels are expected to have wide utility in the area of bone tissue engineering and regenerative medicine.
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Affiliation(s)
- Kulwinder Kaur
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons (RCSI), Dublin D02YN77, Ireland
| | - Silvia Sa' Paiva
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons (RCSI), Dublin D02YN77, Ireland
| | - David Caffrey
- School of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, D02 PN40, Ireland
| | - Brenton L Cavanagh
- Cellular and Molecular Imaging Core, Royal College of Surgeons in Ireland, Dublin D02YN77, Ireland
| | - Ciara M Murphy
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons (RCSI), Dublin D02YN77, Ireland; Trinity Centre for Biomedical Engineering, Trinity College Dublin (TCD), Dublin D02YN7, Ireland; Advanced Materials and Bioengineering Research Centre (AMBER), RCSI and TCD, Dublin, Ireland.
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4
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Sánchez-Cid P, Jiménez-Rosado M, Alonso-González M, Romero A, Perez-Puyana V. Applied Rheology as Tool for the Assessment of Chitosan Hydrogels for Regenerative Medicine. Polymers (Basel) 2021; 13:2189. [PMID: 34209385 PMCID: PMC8271898 DOI: 10.3390/polym13132189] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/27/2021] [Accepted: 06/28/2021] [Indexed: 11/16/2022] Open
Abstract
The regeneration of soft tissues that connect, support or surround other tissues is of great interest. In this sense, hydrogels have great potential as scaffolds for their regeneration. Among the different raw materials, chitosan stands out for being highly biocompatible, which, together with its biodegradability and structure, makes it a great alternative for the manufacture of hydrogels. Therefore, the aim of this work was to develop and characterize chitosan hydrogels. To this end, the most important parameters of their processing, i.e., agitation time, pH, gelation temperature and concentration of the biopolymer used were rheologically evaluated. The results show that the agitation time does not have a significant influence on hydrogels, whereas a change in pH (from 3.2 to 7) is a key factor for their formation. Furthermore, a low gelation temperature (4 °C) favors the formation of the hydrogel, showing better mechanical properties. Finally, there is a percentage of biopolymer saturation, from which the properties of the hydrogels are not further improved (1.5 wt.%). This work addresses the development of hydrogels with high thermal resistance, which allows their use as scaffolds without damaging their mechanical properties.
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Affiliation(s)
- Pablo Sánchez-Cid
- Department of Chemical Engineering, Faculty of Chemistry, Universidad de Sevilla, 41012 Sevilla, Spain; (P.S.-C.); (A.R.); (V.P.-P.)
| | - Mercedes Jiménez-Rosado
- Department of Chemical Engineering, Higher Polytechnic School, Universidad de Sevilla, 41012 Sevilla, Spain;
| | - María Alonso-González
- Department of Chemical Engineering, Higher Polytechnic School, Universidad de Sevilla, 41012 Sevilla, Spain;
| | - Alberto Romero
- Department of Chemical Engineering, Faculty of Chemistry, Universidad de Sevilla, 41012 Sevilla, Spain; (P.S.-C.); (A.R.); (V.P.-P.)
| | - Victor Perez-Puyana
- Department of Chemical Engineering, Faculty of Chemistry, Universidad de Sevilla, 41012 Sevilla, Spain; (P.S.-C.); (A.R.); (V.P.-P.)
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5
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Rahmanian-Devin P, Baradaran Rahimi V, Askari VR. Thermosensitive Chitosan- β-Glycerophosphate Hydrogels as Targeted Drug Delivery Systems: An Overview on Preparation and Their Applications. Adv Pharmacol Pharm Sci 2021; 2021:6640893. [PMID: 34036263 PMCID: PMC8116164 DOI: 10.1155/2021/6640893] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 04/09/2021] [Accepted: 04/20/2021] [Indexed: 12/14/2022] Open
Abstract
Today, with the advances in technology and science, more advanced drug delivery formulations are required. One of these new systems is an intelligent hydrogel. These systems are affected by the environment or conditions that become a gel, stay in the circumstance for a certain period, and slowly release the drug. As an advantage, only a lower dose of the drug is required, and it provides less toxicity and minor damage to other tissues. Hydrogels are of different types, including temperature-sensitive, pH-sensitive, ion change-sensitive, and magnetic field-sensitive. In this study, we investigated a kind of temperature-sensitive smart hydrogel, which has a liquid form at room temperature and becomes gel with increasing temperature. Chitosan-β-glycerophosphate hydrogels have been researched and used in many studies. This study investigates the various factors that influence the gelation mechanism, such as gel formation rates, temperature, pH, time, and gel specificity. Hydrogels are used in many drug delivery systems and diseases, including nasal drug delivery, vaginal drug delivery, wound healing, peritoneal adhesion, ophthalmic drug delivery, tissue engineering, and peptide and protein delivery. Overall, the chitosan-β-glycerophosphate hydrogel is a suitable drug carrier for a wide range of drugs. It shows little toxicity to the body, is biodegradable, and is compatible with other organs. This system can be used in different conditions and different medication ways, such as oral, nasal, and injection.
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Affiliation(s)
- Pouria Rahmanian-Devin
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Vafa Baradaran Rahimi
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Vahid Reza Askari
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Pharmaceutical Sciences in Persian Medicine, School of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Persian Medicine, School of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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6
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Influence of Glycerophosphate Salt Solubility on the Gelation Mechanism of Colloidal Chitosan Systems. Int J Mol Sci 2021; 22:ijms22084043. [PMID: 33919873 PMCID: PMC8070819 DOI: 10.3390/ijms22084043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/10/2021] [Accepted: 04/12/2021] [Indexed: 12/12/2022] Open
Abstract
Recently, thermosensitive chitosan systems have attracted the interest of many researchers due to their growing application potential. Nevertheless, the mechanism of the sol-gel phase transition is still being discussed, and the glycerophosphate salt role is ambiguous. The aim of the work is to analyze the possibility of the exclusive use of a non-sodium glycerophosphate salt and to determine its impact on the gelation conditions determined by rheological and turbidimetric measurements as well as the stability of the systems by measuring changes in the Zeta potential value. It was found that ensuring the same proportions of glycerophosphate ions differing in cation to amino groups present in chitosan chains, leads to obtaining systems significantly different in viscoelastic properties and phase transition conditions. It was clearly shown that the systems with the calcium glycerophosphate, the insoluble form of which may constitute additional aggregation nuclei, undergo the gelation the fastest. The use of magnesium glycerophosphate salt delays the gelation due to the heat-induced dissolution of the salt. Thus, it was unequivocally demonstrated that the formulation of the gelation mechanism of thermosensitive chitosan systems based solely on the concentration of glycerophosphate without discussing its type is incorrect.
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7
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Rył A, Owczarz P. Thermoinduced aggegation of chitosan systems in perikinetic and orthokinetic regimes. Carbohydr Polym 2020; 255:117377. [PMID: 33436208 DOI: 10.1016/j.carbpol.2020.117377] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 10/26/2020] [Accepted: 11/02/2020] [Indexed: 11/25/2022]
Abstract
Thermoresponsive colloidal chitosan systems forming the polymer structure in situ are an example of promising solutions in tissue engineering as an injectable scaffolds or drug carriers. Their application method, and thus shearing, may affect the aggregation process in accordance with the colloidal engineering approach. The aim of the study is to compare the kinetics of chitosan aggregation in the perikinetic regime (limited by Brownian motions) with the orthokinetic process carried out under the influence of an external shear field. The research was carried out using static multiple light scattering (S-MLS) and rheometric measurement techniques coupled with small-angle light scattering (Rheo-SALS). It has been found that the introduction of an external shear field (orthokinetic regime) accelerates the aggregation of chitosan systems. Simultaneously, the rotational measurements can even lead to spontaneous gelation, most likely caused by changes in the conformation of chitosan molecules, their deformation and ordering along the shear field.
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Affiliation(s)
- Anna Rył
- Department of Chemical Engineering, Lodz University of Technology, 90-924, Lodz, Poland
| | - Piotr Owczarz
- Department of Chemical Engineering, Lodz University of Technology, 90-924, Lodz, Poland.
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8
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Preparation and characterization of thermosensitive chitosan/carboxymethylcellulose/scleroglucan nanocomposite hydrogels. Int J Biol Macromol 2020; 162:781-797. [DOI: 10.1016/j.ijbiomac.2020.06.087] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/10/2020] [Accepted: 06/10/2020] [Indexed: 02/07/2023]
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9
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Peers S, Alcouffe P, Montembault A, Ladavière C. Embedment of liposomes into chitosan physical hydrogel for the delayed release of antibiotics or anaesthetics, and its first ESEM characterization. Carbohydr Polym 2020; 229:115532. [DOI: 10.1016/j.carbpol.2019.115532] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 10/23/2019] [Accepted: 10/23/2019] [Indexed: 12/27/2022]
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10
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Lin YJ, Chuang WT, Hsu SH. Gelation Mechanism and Structural Dynamics of Chitosan Self-Healing Hydrogels by In Situ SAXS and Coherent X-ray Scattering. ACS Macro Lett 2019; 8:1449-1455. [PMID: 35651177 DOI: 10.1021/acsmacrolett.9b00683] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Self-healing hydrogels with intrinsic self-healing ability, injectability, and biocompatibility have good potential in biomedical applications. The relevance between the self-healing ability and inner structure of hydrogels, however, has rarely been examined. The design criteria of self-healing hydrogels remain to be established. In this study, we utilized in situ small-angle X-ray scattering (in situ SAXS) and coherent X-ray scattering (CXS) to analyze the dynamics and gelation mechanism of three types of chitosan-based self-healing hydrogels with different dynamic interactions. In situ SAXS revealed the nucleation and growth mechanism for the gelling process, which has not been reported in a system of self-healing hydrogels. The critical nucleation radius (CNR) with different interactions could further influence the gelation rate and self-healing ability. Moreover, the continuous time-resolved CXS profile unveiled the dynamic behavior of different self-healing hydrogels in mesoscale, supported by rheological experiments. Information linking the rheological properties and structural changes could be useful in designing self-healing hydrogels for biomedical applications.
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Affiliation(s)
- Yu-Jie Lin
- Institute of Polymer Science and Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, R.O.C
| | - Wei-Tsung Chuang
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan, R.O.C
| | - Shan-hui Hsu
- Institute of Polymer Science and Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, R.O.C
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11
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Konstantakos S, Marinopoulou A, Papaemmanouil S, Emmanouilidou M, Karamalaki M, Kolothas E, Saridou E, Papastergiadis E, Karageorgiou V. Preparation of model starch complex hydrogels. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.05.046] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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12
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Morsi NM, Nabil Shamma R, Osama Eladawy N, Abdelkhalek AA. Bioactive injectable triple acting thermosensitive hydrogel enriched with nano-hydroxyapatite for bone regeneration: in-vitro characterization, Saos-2 cell line cell viability and osteogenic markers evaluation. Drug Dev Ind Pharm 2019; 45:787-804. [PMID: 30672348 DOI: 10.1080/03639045.2019.1572184] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Hydrogels forming in-situ have gained great attention in the area of bone tissue engineering recently, they were also showed to be a good and less invasive alternative to surgically applied ones. The primal focus of this study was to prepare chitosan-glycerol phosphate thermosensitive hydrogel formed in-situ and loaded with risedronate (bone resorption inhibitor) in an easy way with no requirement of complicated processes or large number of equipment. Then we investigated its effectiveness for bone regeneration. In-situ forming hydrogels were prepared using chitosan cross-linked with glycerol phosphate and loaded with risedronate and nano-hydroxyapatite as bone cement. The prepared hydrogels were characterized by analyzing their gelation time at 37 °C, % porosity, swelling index, in-vitro degradation, rheological properties, and in-vitro drug release. Results showed that the in-situ hydrogels prepared using 2.5% (w/v) chitosan cross-linked with 50% (w/v) glycerol phosphate in the ratio (9:1, v/v) reinforced with 20 mg/mL and nano-hydroxyapatite possessed the most sustained drug release profile. This optimized formulation was further evaluated using DSC and FTIR studies, in addition to their morphological properties using scanning electron microscopy. The effect on Saos-2 cell line viability was evaluated also using MTT assay on the optimized hydrogel formulation in addition to their action on cell proliferation using fluorescence microscope. Moreover, calcium deposition on the hydrogel and alkaline phosphatase activity were evaluated. Risedronate-nano-hydroxyapatite loaded hydrogels significantly enhanced the Saos-2 cell proliferation in addition to enhanced alkaline phosphatase activity and calcium deposition. Such results suggest that risedronate-nano-hydroxyapatite loaded hydrogels present great biocompatibility for bone regeneration. Proliferation of cells, as well as deposition of mineral on the hydrogel, was an evidence of the biocompatible nature of the hydrogel. This hydrogel formed in-situ present a good less invasive alternative for bone tissue engineering.
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Affiliation(s)
- Nadia M Morsi
- a Faculty of Pharmacy, Department of Pharmaceutics and Industrial Pharmacy , Cairo University , Cairo , Egypt
| | - Rehab Nabil Shamma
- a Faculty of Pharmacy, Department of Pharmaceutics and Industrial Pharmacy , Cairo University , Cairo , Egypt
| | - Nouran Osama Eladawy
- a Faculty of Pharmacy, Department of Pharmaceutics and Industrial Pharmacy , Cairo University , Cairo , Egypt
| | - Abdelfattah A Abdelkhalek
- b Faculty of Oral and Dental Medicine, Department of Microbiology of Supplementary General Science , Future University in Egypt , Egypt
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13
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Morphological Characterization of Hydrogels. POLYMERS AND POLYMERIC COMPOSITES: A REFERENCE SERIES 2019. [DOI: 10.1007/978-3-319-77830-3_28] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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14
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Peng H, Huang Q, Yue H, Li Y, Wu M, Liu W, Zhang G, Fu S, Zhang J. The antitumor effect of cisplatin-loaded thermosensitive chitosan hydrogel combined with radiotherapy on nasopharyngeal carcinoma. Int J Pharm 2018; 556:97-105. [PMID: 30529661 DOI: 10.1016/j.ijpharm.2018.11.068] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 11/02/2018] [Accepted: 11/26/2018] [Indexed: 11/18/2022]
Abstract
Cisplatin-based chemo-radiotherapy (RT) is the most effective treatment in patients with loco-regionally advanced nasopharyngeal carcinoma (NPC). However, traditional chemotherapy drugs have low bioavailability and targeting ability, which reduce their antitumor effects. Therefore, we developed a chitosan/ cis-dichlorodiamineplatinum (CS/DDP) hydrogel-based drug delivery system for the in situ treatment of NPC in combination with RT, and investigated their synergistic antitumor efficacy and underlying mechanism of action. CS/DDP hydrogel remarkably prolonged the survival time (81 days) when combined with RT compared to the control group (P < 0.01). The main mechanism was likely the increase in cancer cell apoptosis (76.23 ± 1.13%, p < 0.01). Furthermore, the CS/DDP hydrogel in combination with RT also increased X-ray-induced DSBs and γ-H2AX foci, induced G2/M phase arrest, inhibited cell proliferation by blocking Ki-67, and decreased CD31+ micro-vessel density (MVD). These results underscore the therapeutic potential of the combination of CS/DDP hydrogel and RT for localized NPC.
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Affiliation(s)
- Hongju Peng
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Qi Huang
- Department of Oncology, The First People's Hospital of Neijiang, Neijiang 641000, China
| | - Hongcheng Yue
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Yuan Li
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Min Wu
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Wei Liu
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Guangpeng Zhang
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Shaozhi Fu
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China.
| | - Jianwen Zhang
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China.
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15
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Graham S, Marina PF, Blencowe A. Thermoresponsive polysaccharides and their thermoreversible physical hydrogel networks. Carbohydr Polym 2018; 207:143-159. [PMID: 30599994 DOI: 10.1016/j.carbpol.2018.11.053] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 11/16/2018] [Accepted: 11/16/2018] [Indexed: 01/22/2023]
Abstract
Thermoresponsive polymers have been used extensively for various applications including food additives, pharmaceutical formulations, therapeutic delivery, cosmetics and environmental remediation, to mention a few. Many thermoresponsive polymers have the ability to form physical hydrogel networks in response to temperature changes, which are particularly useful for emerging biomedical applications, including cell therapies, drug delivery systems, tissue engineering, wound healing and 3D bioprinting. In particular, the use of polysaccharides with thermoresponsive properties has been of interest due to their wide availability, versatile functionality, biodegradability, and in many cases, inherent biocompatibility. Naturally thermoresponsive polysaccharides include agarose, carrageenans and gellan gum, which exhibit upper critical solution temperatures, transitioning from a solution to a gel state upon cooling. Arguably, this limits their use in biomedical applications, particularly for cell encapsulation as they require raised temperatures to maintain a solution state that may be detrimental to living systems. Conversely, significant progress has been made over recent years to develop synthetically modified polysaccharides, which tend to exhibit lower critical solution temperatures, transitioning from a solution to a gel state upon warming. Of particular interest are thermoresponsive polysaccharides with a lower critical solution temperature in between room temperature and physiological temperature, as their solutions can conveniently be manipulated at room temperature before gelling upon warming to physiological temperature, which makes them ideal candidates for many biological applications. Therefore, this review provides an introduction to the different types of thermoresponsive polysaccharides that have been developed, their resulting hydrogels and properties, and the exciting applications that have emerged as a result of these properties.
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Affiliation(s)
- Sarah Graham
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia
| | - Paula Facal Marina
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia; Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, 5095, Australia
| | - Anton Blencowe
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia; Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, 5095, Australia.
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Almeida JF, Ferreira P, Alves P, Lopes A, Gil MH. Thermal-responsive hydrogels for sublingual administration of Ondansetron™. INT J POLYM MATER PO 2018. [DOI: 10.1080/00914037.2017.1376202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- José Filipe Almeida
- Department of Chemical Engineering, Chemical Process Engineering and Forest Products Research Centre (CIEPQPF), University of Coimbra, Coimbra, Portugal
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Oeiras, Portugal
| | - Paula Ferreira
- Department of Chemical Engineering, Chemical Process Engineering and Forest Products Research Centre (CIEPQPF), University of Coimbra, Coimbra, Portugal
| | - Patricia Alves
- Department of Chemical Engineering, Chemical Process Engineering and Forest Products Research Centre (CIEPQPF), University of Coimbra, Coimbra, Portugal
| | - António Lopes
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Oeiras, Portugal
| | - Maria H. Gil
- Department of Chemical Engineering, Chemical Process Engineering and Forest Products Research Centre (CIEPQPF), University of Coimbra, Coimbra, Portugal
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17
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Bashir S, Teo YY, Ramesh S, Ramesh K. Synthesis and characterization of karaya gum-g- poly (acrylic acid) hydrogels and in vitro release of hydrophobic quercetin. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.05.071] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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18
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Skwarczynska A, Kaminska M, Owczarz P, Bartoszek N, Walkowiak B, Modrzejewska Z. The structural (FTIR, XRD, and XPS) and biological studies of thermosensitive chitosan chloride gels with β-glycerophosphate disodium. J Appl Polym Sci 2018. [DOI: 10.1002/app.46459] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Agata Skwarczynska
- Department of Civil, Environmental Engineering and Architecture; Rzeszow University of Technology, Powstancow Warszawy 6; Rzeszow 35-959 Poland
| | - Marta Kaminska
- Institute of Materials Science and Engineering, Lodz University of Technology, Stefanowskiego 1/15; Lodz 90-924 Poland
| | - Piotr Owczarz
- Faculty of Process and Environmental Engineering; Lodz University of Technology, Wolczanska 175; Lodz 90-924 Poland
| | - Nina Bartoszek
- BioNanoPark Laboratories of Lodz Regional Park of Science and Technology, Dubois 144; Lodz 93-465 Poland
| | - Bogdan Walkowiak
- Institute of Materials Science and Engineering, Lodz University of Technology, Stefanowskiego 1/15; Lodz 90-924 Poland
- BioNanoPark Laboratories of Lodz Regional Park of Science and Technology, Dubois 144; Lodz 93-465 Poland
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Taherian AR, Lacasse P, Bisakowski B, Pelletier M, Lanctôt S, Fustier P. Rheological and thermogelling properties of commercials chitosan/β-glycerophosphate: Retention of hydrogel in water, milk and UF-milk. Food Hydrocoll 2017. [DOI: 10.1016/j.foodhyd.2016.09.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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Dai Z, Lu Q, Quan Q, Mo R, Zhou C, Hong P, Li C. Novel low temperature (<37 °C) chitosan hydrogel fabrication under the synergistic effect of graphene oxide. NEW J CHEM 2017. [DOI: 10.1039/c6nj03509d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A low temperature chitosan hydrogel was fabricated under the synergistic effect of graphene oxide, and may be applied in hydrogel medical coatings.
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Affiliation(s)
- Zhenqing Dai
- College of Food Science and Technology
- Guangdong Ocean University
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety
- Guangdong Provincial Engineering Technology Research Center of Marine Food
- Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution
| | - Qiongfang Lu
- College of Food Science and Technology
- Guangdong Ocean University
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety
- Guangdong Provincial Engineering Technology Research Center of Marine Food
- Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution
| | - Qinguo Quan
- College of Food Science and Technology
- Guangdong Ocean University
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety
- Guangdong Provincial Engineering Technology Research Center of Marine Food
- Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution
| | - Rijian Mo
- College of Food Science and Technology
- Guangdong Ocean University
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety
- Guangdong Provincial Engineering Technology Research Center of Marine Food
- Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution
| | - Chunxia Zhou
- College of Food Science and Technology
- Guangdong Ocean University
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety
- Guangdong Provincial Engineering Technology Research Center of Marine Food
- Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution
| | - Pengzhi Hong
- College of Food Science and Technology
- Guangdong Ocean University
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety
- Guangdong Provincial Engineering Technology Research Center of Marine Food
- Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution
| | - Chengyong Li
- College of Food Science and Technology
- Guangdong Ocean University
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety
- Guangdong Provincial Engineering Technology Research Center of Marine Food
- Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution
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Preparation and characterization of chitosan based injectable hydrogels enhanced by chitin nano-whiskers. J Mech Behav Biomed Mater 2016; 65:466-477. [PMID: 27665082 DOI: 10.1016/j.jmbbm.2016.09.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 09/06/2016] [Accepted: 09/07/2016] [Indexed: 11/20/2022]
Abstract
The objective of current study was to prepare an injectable hydrogel with great mechanical properties and biological compatibility, which could be more suitable to be applied as tissue engineering scaffold. Chitin nano-whiskers (CNWs) were introduced into chitosan/β-glycerophosphate disodium salt (CS/GP) injectable hydrogel. The effects of CNWs contents and gelation temperatures on gelation speed and mechanical properties of the composite hydrogels were characterized and discussed. The maximum values of tensile strength and elongation at break were both more than 4 times larger than that of neat CS/GP hydrogel. The gelation time of injectable hydrogel with 5% CNWs content (formed at 37°C) was 25 seconds, which was much shorter than that (6038 seconds) of the neat CS/GP hydrogel. In combination with results of Fourier transform infrared spectroscopy (FT-IR), it was proved that CNWs functioned as a cross-linker through hydrogen bond interaction in the gel formation process, which might be the main reason for mechanical enhancement. Meanwhile, gels formed with higher CNWs content and gelation temperature had lower equilibrium swelling ratio and drug release rate. Cytotoxicity of hydrogel in vitro was studied by MTT method with a result of indicating a good biocompatibility of CNWs enhanced hydrogel.
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Worthington KS, Green BJ, Rethwisch M, Wiley LA, Tucker BA, Guymon CA, Salem AK. Neuronal Differentiation of Induced Pluripotent Stem Cells on Surfactant Templated Chitosan Hydrogels. Biomacromolecules 2016; 17:1684-95. [PMID: 27008004 DOI: 10.1021/acs.biomac.6b00098] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The development of effective tissue engineering materials requires careful consideration of several properties beyond biocompatibility, including permeability and mechanical stiffness. While surfactant templating has been used for over a decade to control the physical properties of photopolymer materials, the potential benefit of this technique with regard to biomaterials has yet to be fully explored. Herein we demonstrate that surfactant templating can be used to tune the water uptake and compressive modulus of photo-cross-linked chitosan hydrogels. Interestingly, templating with quaternary ammonium surfactants also hedges against property fluctuations that occur with changing pH. Further, we demonstrate that, after adequate surfactant removal, these materials are nontoxic, support the attachment of induced pluripotent stem cells and facilitate stem cell differentiation to neuronal phenotypes. These results demonstrate the utility of surfactant templating for optimizing the properties of biomaterials intended for a variety of applications, including retinal regeneration.
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Affiliation(s)
- Kristan S Worthington
- Department of Chemical and Biochemical Engineering, ‡Wynn Institute for Vision Research, Department of Ophthalmology and Visual Sciences, and §Division of Pharmaceutics and Translational Therapeutics, Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa , Iowa City, Iowa 52242, United States
| | - Brian J Green
- Department of Chemical and Biochemical Engineering, ‡Wynn Institute for Vision Research, Department of Ophthalmology and Visual Sciences, and §Division of Pharmaceutics and Translational Therapeutics, Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa , Iowa City, Iowa 52242, United States
| | - Mary Rethwisch
- Department of Chemical and Biochemical Engineering, ‡Wynn Institute for Vision Research, Department of Ophthalmology and Visual Sciences, and §Division of Pharmaceutics and Translational Therapeutics, Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa , Iowa City, Iowa 52242, United States
| | - Luke A Wiley
- Department of Chemical and Biochemical Engineering, ‡Wynn Institute for Vision Research, Department of Ophthalmology and Visual Sciences, and §Division of Pharmaceutics and Translational Therapeutics, Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa , Iowa City, Iowa 52242, United States
| | - Budd A Tucker
- Department of Chemical and Biochemical Engineering, ‡Wynn Institute for Vision Research, Department of Ophthalmology and Visual Sciences, and §Division of Pharmaceutics and Translational Therapeutics, Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa , Iowa City, Iowa 52242, United States
| | - C Allan Guymon
- Department of Chemical and Biochemical Engineering, ‡Wynn Institute for Vision Research, Department of Ophthalmology and Visual Sciences, and §Division of Pharmaceutics and Translational Therapeutics, Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa , Iowa City, Iowa 52242, United States
| | - Aliasger K Salem
- Department of Chemical and Biochemical Engineering, ‡Wynn Institute for Vision Research, Department of Ophthalmology and Visual Sciences, and §Division of Pharmaceutics and Translational Therapeutics, Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa , Iowa City, Iowa 52242, United States
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23
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Wang Q, Chen D. Synthesis and characterization of a chitosan based nanocomposite injectable hydrogel. Carbohydr Polym 2015; 136:1228-37. [PMID: 26572466 DOI: 10.1016/j.carbpol.2015.10.040] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 10/10/2015] [Accepted: 10/10/2015] [Indexed: 01/18/2023]
Abstract
The aim of the current study was to enhance the mechanical property of chitosan/β-glycerophosphate disodium salt (CS/GP) injectable hydrogels. A novel nanocomposite injectable hydrogel was prepared by introducing attapulgite (ATP) nano particles into the CS/GP hydrogels. The mechanical properties of the composite hydrogels with two different water contents were characterized by tensile test, the results shown that the tensile strength and elongation at break of composite hydrogels both increased obviously with increasing of ATP content. And, in our testing range, the maximum values of tensile strength and elongation at break were both more than 5 times larger than that of neat CS/GP hydrogel. We discussed this enhancement effect in detail by Scanning electron microscope observations (SEM) and Fourier transform infrared spectroscopy testing (FT-IR). The SEM images of composite hydrogels shown quite different from the neat CS/GP hydrogel, where the pores were more tightly and with some uniform and smaller holes dispersed on the wall. FT-IR test results revealed that the introduction of ATP increased the cross-link density because of the hydrogen bonds formation between ATP nanoparticles and CS molecules. Also, we studied the impact of ATP introduction on gelation speed through tracking the dynamic process of the sol-gel transition by means of rheological measurement, and the results shown that the reaction rate increased significantly with the increase of ATP concentration.
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Affiliation(s)
- Qianqian Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, PR China
| | - Dajun Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, PR China.
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Selvam S, Pithapuram MV, Victor SP, Muthu J. Injectable in situ forming xylitol-PEG-based hydrogels for cell encapsulation and delivery. Colloids Surf B Biointerfaces 2014; 126:35-43. [PMID: 25543981 DOI: 10.1016/j.colsurfb.2014.11.043] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 11/04/2014] [Accepted: 11/26/2014] [Indexed: 11/08/2022]
Abstract
Injectable in situ crosslinking hydrogels offer unique advantages over conventional prefabricated hydrogel methodologies. Herein, we synthesize poly(xylitol-co-maleate-co-PEG) (pXMP) macromers and evaluate their performance as injectable cell carriers for tissue engineering applications. The designed pXMP elastomers were non-toxic and water-soluble with viscosity values permissible for subcutaneous injectable systems. pXMP-based hydrogels prepared via free radical polymerization with acrylic acid as crosslinker possessed high crosslink density and exhibited a broad range of compressive moduli that could match the natural mechanical environment of various native tissues. The hydrogels displayed controlled degradability and exhibited gradual increase in matrix porosity upon degradation. The hydrophobic hydrogel surfaces preferentially adsorbed albumin and promoted cell adhesion and growth in vitro. Actin staining on cells cultured on thin hydrogel films revealed subconfluent cell monolayers composed of strong, adherent cells. Furthermore, fabricated 3D pXMP cell-hydrogel constructs promoted cell survival and proliferation in vitro. Cumulatively, our results demonstrate that injectable xylitol-PEG-based hydrogels possess excellent physical characteristics and exhibit exceptional cytocompatibility in vitro. Consequently, they show great promise as injectable hydrogel systems for in situ tissue repair and regeneration.
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Affiliation(s)
- Shivaram Selvam
- Polymer Science Division, BMT Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvanathapuram 695012, Kerala, India.
| | - Madhav V Pithapuram
- Polymer Science Division, BMT Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvanathapuram 695012, Kerala, India
| | - Sunita P Victor
- Polymer Science Division, BMT Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvanathapuram 695012, Kerala, India
| | - Jayabalan Muthu
- Polymer Science Division, BMT Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvanathapuram 695012, Kerala, India
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25
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Dang QF, Yan JQ, Lin H, Liu CS, Chen XG, Ji QX, Li J, Liu Y. Biological evaluation of chitosan-basedin situ-forming hydrogel with low phase transition temperature. J Appl Polym Sci 2014. [DOI: 10.1002/app.41594] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qi Feng Dang
- Ocean University of China; Qingdao 266003 People's Republic of China
| | - Jing Quan Yan
- Ocean University of China; Qingdao 266003 People's Republic of China
| | - Hong Lin
- Ocean University of China; Qingdao 266003 People's Republic of China
| | - Cheng Sheng Liu
- Ocean University of China; Qingdao 266003 People's Republic of China
| | - Xi Guang Chen
- Ocean University of China; Qingdao 266003 People's Republic of China
| | - Qiu Xia Ji
- The Affiliated Hospital of Medical College, Qingdao University; Qingdao 266001 People's Republic of China
| | - Jing Li
- Ocean University of China; Qingdao 266003 People's Republic of China
| | - Ya Liu
- Ocean University of China; Qingdao 266003 People's Republic of China
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Glycerophosphate-based chitosan thermosensitive hydrogels and their biomedical applications. Carbohydr Polym 2014; 117:524-536. [PMID: 25498667 DOI: 10.1016/j.carbpol.2014.09.094] [Citation(s) in RCA: 243] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 09/24/2014] [Accepted: 09/25/2014] [Indexed: 11/23/2022]
Abstract
Chitosan is non-toxic, biocompatible and biodegradable polysaccharide composed of glucosamine and derived by deacetylation of chitin. Chitosan thermosensitive hydrogel has been developed to form a gel in situ, precluding the need for surgical implantation. In this review, the recent advances in chitosan thermosensitive hydrogels based on different glycerophosphate are summarized. The hydrogel is prepared with chitosan and β-glycerophosphate or αβ-glycerophosphate which is liquid at room temperature and transits into gel as temperature increases. The gelation mechanism may involve multiple interactions between chitosan, glycerophosphate, and water. The solution behavior, rheological and physicochemical properties, and gelation process of the hydrogel are affected not only by the molecule weight, deacetylation degree, and concentration of chitosan, but also by the kind and concentration of glycerophosphate. The properties and the three-dimensional networks of the hydrogel offer them wide applications in biomedical field including local drug delivery and tissue engineering.
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Novel hydrogels of chitosan and poly(vinyl alcohol)-g-glycolic acid copolymer with enhanced rheological properties. Carbohydr Polym 2014; 103:267-73. [DOI: 10.1016/j.carbpol.2013.12.040] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 12/12/2013] [Accepted: 12/14/2013] [Indexed: 02/04/2023]
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Patenaude M, Smeets NMB, Hoare T. Designing Injectable, Covalently Cross-Linked Hydrogels for Biomedical Applications. Macromol Rapid Commun 2014; 35:598-617. [DOI: 10.1002/marc.201300818] [Citation(s) in RCA: 130] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Revised: 12/11/2013] [Indexed: 12/22/2022]
Affiliation(s)
- Mathew Patenaude
- Department of Chemical Engineering; McMaster University; 1280 Main St. W. Hamilton Ontario Canada L8S 4L7
| | - Niels M. B. Smeets
- Department of Chemical Engineering; McMaster University; 1280 Main St. W. Hamilton Ontario Canada L8S 4L7
| | - Todd Hoare
- Associate Professor, Department of Chemical Engineering; McMaster University; 1280 Main St. W. Hamilton Ontario Canada L8S 4L7
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Kennedy R, Ul Hassan W, Tochwin A, Zhao T, Dong Y, Wang Q, Tai H, Wang W. In situ formed hybrid hydrogels from PEG based multifunctional hyperbranched copolymers: a RAFT approach. Polym Chem 2014. [DOI: 10.1039/c3py01513k] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Supper S, Anton N, Seidel N, Riemenschnitter M, Curdy C, Vandamme T. Thermosensitive chitosan/glycerophosphate-based hydrogel and its derivatives in pharmaceutical and biomedical applications. Expert Opin Drug Deliv 2013; 11:249-67. [PMID: 24304097 DOI: 10.1517/17425247.2014.867326] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
INTRODUCTION Thermogelling chitosan (CS)/glycerophosphate (GP) solutions have been reported as a new type of parenteral in situ forming depot system. These free-flowing solutions at ambient temperature turn into semi-solid hydrogels after parenteral administration. AREAS COVERED Formulation parameters such as CS physico-chemical characteristics, CS/gelling agent ratio or pH of the system, were acknowledged as key parameters affecting the solution stability, the sol/gel transition behavior and/or the final hydrogel structure. We discuss also the use of the standard CS/GP thermogels for various biomedical applications, including drug delivery and tissue engineering. Furthermore, this manuscript reviews the different strategies implemented to improve the hydrogel characteristics such as combination with carrier particles, replacement of GP, addition of a second polymer and chemical modification of CS. EXPERT OPINION The recent advances in the formulation of CS-based thermogelling systems already overcame several challenges faced by the standard CS/GP system. Dispersion of drug-loaded carrier particles into the thermogels allowed achieving prolonged release profiles for low molecular weight drugs; incorporation of an additional polymer enabled to strengthen the network, while the use of chemically modified CS led to enhanced pH sensitivity or biodegradability of the matrix.
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Affiliation(s)
- Stephanie Supper
- Novartis Pharma AG, Technical Research & Development (TRD) , Basel, 4002 , Switzerland
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Enhanced mechanical properties of thermosensitive chitosan hydrogel by silk fibers for cartilage tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:4786-94. [DOI: 10.1016/j.msec.2013.07.043] [Citation(s) in RCA: 180] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Revised: 07/12/2013] [Accepted: 07/29/2013] [Indexed: 02/06/2023]
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Worthington KL, Dodd AA, Wongrakpanich A, Mudunkotuwa IA, Mapuskar KA, Joshi VB, Guymon CA, Spitz DR, Grassian VH, Thorne PS, Salem AK. Chitosan coating of copper nanoparticles reduces in vitro toxicity and increases inflammation in the lung. NANOTECHNOLOGY 2013; 24:395101. [PMID: 24008224 PMCID: PMC3816956 DOI: 10.1088/0957-4484/24/39/395101] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Despite their potential for a variety of applications, copper nanoparticles induce very strong inflammatory responses and cellular toxicity following aerosolized delivery. Coating metallic nanoparticles with polysaccharides, such as biocompatible and antimicrobial chitosan, has the potential to reduce this toxicity. In this study, copper nanoparticles were coated with chitosan using a newly developed and facile method. The presence of coating was confirmed using x-ray photoelectron spectroscopy, rhodamine tagging of chitosan followed by confocal fluorescence imaging of coated particles and observed increases in particle size and zeta potential. Further physical and chemical characteristics were evaluated using dissolution and x-ray diffraction studies. The chitosan coating was shown to significantly reduce the toxicity of copper nanoparticles after 24 and 52 h and the generation of reactive oxygen species as assayed by DHE oxidation after 24 h in vitro. Conversely, inflammatory response, measured using the number of white blood cells, total protein, and cytokines/chemokines in the bronchoalveolar fluid of mice exposed to chitosan coated versus uncoated copper nanoparticles, was shown to increase, as was the concentration of copper ions. These results suggest that coating metal nanoparticles with mucoadhesive polysaccharides (e.g. chitosan) could increase their potential for use in controlled release of copper ions to cells, but will result in a higher inflammatory response if administered via the lung.
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Affiliation(s)
- Kristan L.S. Worthington
- Department of Chemical and Biochemical Engineering, College of Engineering, University of Iowa, Iowa City, Iowa 52242, USA
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, Iowa 52242
| | - Andrea A. Dodd
- Department of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, Iowa 52242, USA
| | - Amaraporn Wongrakpanich
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, Iowa 52242
| | - Imali A. Mudunkotuwa
- Department of Chemistry, College of Liberal Arts and Sciences, University of Iowa, Iowa City, Iowa 52242, USA
| | - Kranti A. Mapuskar
- Free Radical and Radiation Biology and Toxicology Programs, Department of Oncology, Holden Comprehensive Cancer Center, Carver College of Medicine, University of Iowa, Iowa City, Iowa 52242, USA
| | - Vijaya B. Joshi
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, Iowa 52242
| | - C. Allan Guymon
- Department of Chemical and Biochemical Engineering, College of Engineering, University of Iowa, Iowa City, Iowa 52242, USA
| | - Douglas R. Spitz
- Free Radical and Radiation Biology and Toxicology Programs, Department of Oncology, Holden Comprehensive Cancer Center, Carver College of Medicine, University of Iowa, Iowa City, Iowa 52242, USA
| | - Vicki H. Grassian
- Department of Chemistry, College of Liberal Arts and Sciences, University of Iowa, Iowa City, Iowa 52242, USA
| | - Peter S. Thorne
- Department of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, Iowa 52242, USA
| | - Aliasger K. Salem
- Department of Chemical and Biochemical Engineering, College of Engineering, University of Iowa, Iowa City, Iowa 52242, USA
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, Iowa 52242
- CORRESPONDING AUTHOR: Aliasger K. Salem, Ph.D., Division of Pharmaceutics and Translational Therapeutics, College of Pharmacy, the University of Iowa, S228 PHAR, 115 S. Grand Ave. Iowa City, IA 52242, Phone: (319)-335-8810, Fax: (319)-335-9349,
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Mekhail M, Daoud J, Almazan G, Tabrizian M. Rapid, guanosine 5'-diphosphate-induced, gelation of chitosan sponges as novel injectable scaffolds for soft tissue engineering and drug delivery applications. Adv Healthc Mater 2013; 2:1126-30. [PMID: 23554366 DOI: 10.1002/adhm.201200371] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Revised: 01/31/2013] [Indexed: 01/03/2023]
Abstract
Novel injectable chitosan sponges based on rapid ionic crosslinking using guanosine 5'-diphosphate are introduced. The rapid gelation, high water retention, desirable physicochemical properties, soft tissue-like mechanical properties, and excellent cytocompatibility make these injectable sponges promising candidates for tissue regeneration and drug delivery applications.
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Affiliation(s)
- Mina Mekhail
- Biomedical Engineering, Duff Medical Building, Room 313, McGill, Montreal, H3A 2B4, Canada
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Ding K, Yang Z, Zhang YL, Xu JZ. Injectable thermosensitive chitosan/β-glycerophosphate/collagen hydrogel maintains the plasticity of skeletal muscle satellite cells and supports their in vivo viability. Cell Biol Int 2013; 37:977-87. [PMID: 23620126 DOI: 10.1002/cbin.10123] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2013] [Accepted: 04/15/2013] [Indexed: 01/19/2023]
Abstract
A cell carrier plays an important role in the maintenance, growth and engraftment of specific cells aimed for defined therapeutic uses in many tissue engineering strategies. A suitable microenvironment for the cells allows for the maximum efficacy of the hybrid device. We have prepared an injectable thermosensitive chitosan/β-glycerophosphate/collagen (C/GP/Co) gel and investigated its potential application as a support for the culture of skeletal muscle satellite cells (SMSCs). A cell viability assay was used to evaluate the in vitro cytocompatibility of the gel. Cell growth was assessed by scanning electron microscopy (SEM), confocal laser scanning microscopy (CLSM) and histological analysis. The influence of the C/GP/Co gel on the plasticity of SMSCs seeded at the surface of the gel was assessed by induction of the myogenic, osteogenic and adipogenic differentiation. C/GP/Co gel provided the appropriate environment for the culture of SMSCs in vitro. In addition, the C/GP/Co gel supported SMSC plasticity. In vivo testing of the SMSC-seeded gel was investigated by subcutaneous injection into the dorsum of nude mice. Cell viability was assessed both by in vivo imaging and histological examination of the explants. In conclusion, C/GP/Co hydrogel is a cytocompatible carrier for the in vivo delivery of SMSCs and supportive for SMSC plasticity. Thus, this gel has potential applications in tissue engineering and regenerative medicine.
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Affiliation(s)
- Ke Ding
- Department of Orthopaedics, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
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Douglas TE, Skwarczynska A, Modrzejewska Z, Balcaen L, Schaubroeck D, Lycke S, Vanhaecke F, Vandenabeele P, Dubruel P, Jansen JA, Leeuwenburgh SC. Acceleration of gelation and promotion of mineralization of chitosan hydrogels by alkaline phosphatase. Int J Biol Macromol 2013; 56:122-32. [DOI: 10.1016/j.ijbiomac.2013.02.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 01/17/2013] [Accepted: 02/02/2013] [Indexed: 10/27/2022]
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36
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Characterization of the interaction between chitosan and inorganic sodium phosphates by means of rheological and optical microscopy studies. Carbohydr Polym 2013; 91:597-602. [PMID: 23121951 DOI: 10.1016/j.carbpol.2012.08.037] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Revised: 08/10/2012] [Accepted: 08/13/2012] [Indexed: 11/21/2022]
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37
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Peng Y, Li J, Li J, Fei Y, Dong J, Pan W. Optimization of thermosensitive chitosan hydrogels for the sustained delivery of venlafaxine hydrochloride. Int J Pharm 2013; 441:482-90. [DOI: 10.1016/j.ijpharm.2012.11.005] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Revised: 10/18/2012] [Accepted: 11/07/2012] [Indexed: 11/28/2022]
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Dang QF, Zou SH, Chen XG, Liu CS, Li JJ, Zhou X, Liu Y, Cheng XJ. Characterizations of chitosan-based highly porous hydrogel-The effects of the solvent. J Appl Polym Sci 2012. [DOI: 10.1002/app.36681] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Sun B, Ma W, Su F, Wang Y, Liu J, Wang D, Liu H. The osteogenic differentiation of dog bone marrow mesenchymal stem cells in a thermo-sensitive injectable chitosan/collagen/β-glycerophosphate hydrogel: in vitro and in vivo. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2011; 22:2111-2118. [PMID: 21744102 DOI: 10.1007/s10856-011-4386-4] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2011] [Accepted: 06/25/2011] [Indexed: 05/31/2023]
Abstract
Type I collagen was added to the composite chitosan solution in a ratio of 1:2 to build a physical cross-linked self-forming chitosan/collagen/β-GP hydrogel. Osteogenic properties of this novel injectable hydrogel were evaluated. Gelation time was about 8 min which offered enough time for handling a mixture containing cells and the subsequent injection. Scanning electronic microscopy (SEM) observations indicated good spreading of bone marrow mesenchymal stem cells (BMSCs) in this hydrogel scaffold. Mineral nodules were found in the dog-BMSCs inoculated hydrogel by SEM after 28 days. After subcutaneous injection into nude mouse dorsum for 4 weeks, partial bone formation was observed in the chitosan/collagen/β-GP hydrogel loaded with pre-osteodifferentiated dog-BMSCs, which indicated that chitosan/collagen/β-GP hydrogel composite could induce osteodifferentiation in BMSCs without exposure to a continual supply of external osteogenic factors. In conclusion, the novel chitosan/collagen/β-GP hydrogel composite should prove useful as a bone regeneration scaffold.
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Affiliation(s)
- Bin Sun
- Institute of Stomatology, Chinese PLA General Hospital, Haidian District, Beijing, China
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40
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Qiu X, Yang Y, Wang L, Lu S, Shao Z, Chen X. Synergistic interactions during thermosensitive chitosan-β-glycerophosphate hydrogel formation. RSC Adv 2011. [DOI: 10.1039/c1ra00149c] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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41
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Controlled gelation temperature, pore diameter and degradation of a highly porous chitosan-based hydrogel. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2010.07.038] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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42
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Chitosan and Chitosan Derivatives in Drug Delivery and Tissue Engineering. ADVANCES IN POLYMER SCIENCE 2011. [DOI: 10.1007/12_2011_137] [Citation(s) in RCA: 199] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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43
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Potential of an injectable chitosan/starch/β-glycerol phosphate hydrogel for sustaining normal chondrocyte function. Int J Pharm 2010; 391:115-24. [DOI: 10.1016/j.ijpharm.2010.02.028] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2009] [Revised: 02/16/2010] [Accepted: 02/24/2010] [Indexed: 11/17/2022]
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Abstract
Hydrogels have many different applications in the field of regenerative medicine. Biodegradable, injectable hydrogels could be utilized as delivery systems, cell carriers, and scaffolds for tissue engineering. Injectable hydrogels are an appealing scaffold because they are structurally similar to the extracellular matrix of many tissues, can often be processed under relatively mild conditions, and may be delivered in a minimally invasive manner. This review will discuss recent advances in the field of injectable hydrogels, including both synthetic and native polymeric materials, which can be potentially used in cartilage and soft tissue engineering applications.
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45
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Peng HT, Shek PN. Development of in situ-forming hydrogels for hemorrhage control. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2009; 20:1753-1762. [PMID: 19347258 DOI: 10.1007/s10856-009-3721-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2008] [Accepted: 02/17/2009] [Indexed: 05/27/2023]
Abstract
We report the preparation of in situ-forming hydrogels, composed of oxidized dextran (Odex) and amine-containing polymers, for their potential use as a wound dressing to promote blood clotting. Dextran was oxidized by sodium periodate to introduce aldehyde groups to form hydrogels, upon mixing in solution with different polymers containing primary amine groups, including polyallylamine (PAA), oligochitosan and glycol chitosan. A series of experiments were conducted to identify the optimum gelation condition for the Odex-PAA system. The polymer concentration appeared to have a major effect on gelation time and the polymer weight ratio affected the resulting gel content and swelling. Other influencing factors included pH of the buffer used to dissolve each polymer, PAA molecular weight, and the type of individual material. The latter also contributed significantly to gel content and swelling. Thromboelastography was used to examine the effects of the in situ gelation on blood coagulation in vitro, where the Odex-PAA combination was found to be most pro-hemostatic, as indicated by a decrease in clotting time and an increase in clot strength. The results of this study demonstrated that in situ-forming hydrogels could promote clotting in vitro; however, further studies are required to determine if the same hydrogel formulations are effective in controlling hemorrhage in vivo.
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Affiliation(s)
- Henry T Peng
- Defence Research and Development Canada - Toronto, Toronto, ON, Canada.
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47
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Chang Y, Xiao L, Tang Q. Preparation and characterization of a novel thermosensitive hydrogel based on chitosan and gelatin blends. J Appl Polym Sci 2009. [DOI: 10.1002/app.29954] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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48
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Huang FY, Huang LK, Lin WY, Luo TY, Tsai CS, Hsieh BT. Development of a thermosensitive hydrogel system for local delivery of 188Re colloid drugs. Appl Radiat Isot 2009; 67:1405-11. [DOI: 10.1016/j.apradiso.2009.02.081] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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49
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Nisbet DR, Moses D, Gengenbach TR, Forsythe JS, Finkelstein DI, Horne MK. Enhancing neurite outgrowth from primary neurones and neural stem cells using thermoresponsive hydrogel scaffolds for the repair of spinal cord injury. J Biomed Mater Res A 2009; 89:24-35. [PMID: 18404707 DOI: 10.1002/jbm.a.31962] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In this study, thermoresponsive xyloglucan hydrogel scaffolds were investigated as candidates for neural tissue engineering of the spinal cord. The hydrogels were optimized to provide similar mechanical properties to that of native spinal cord, although also being functionalized through the immobilization of poly-D-lysine to promote neurone adhesion and neurite outgrowth. Under 2D and 3D culture conditions, xyloglucan scaffolds supported the differentiation of primary cortical neurones. Furthermore, functionalization provided a means of controlling and optimizing the cell diameter, number, migration and the neurite density, and the direction of growth. The interaction of neural stem cells (NSCs) was also investigated on the xyloglucan scaffolds in vitro. The survival of the NSCs and the axonal extensions on the scaffolds were similar to that of the primary cortical neurones. These findings suggest that xyloglucan-based materials are suitable for providing a neurotrophic milieu.
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Affiliation(s)
- D R Nisbet
- Department of Materials Engineering, Division of Biological Engineering, Monash University, Victoria 3800, Australia
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50
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Zhou HY, Chen XG, Kong M, Liu CS. Preparation of chitosan-based thermosensitive hydrogels for drug delivery. J Appl Polym Sci 2009. [DOI: 10.1002/app.29721] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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