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López-González I, Hernández-Heredia AB, Rodríguez-López MI, Auñón-Calles D, Boudifa M, Gabaldón JA, Meseguer-Olmo L. Evaluation of the In Vitro Antimicrobial Efficacy against Staphylococcus aureus and epidermidis of a Novel 3D-Printed Degradable Drug Delivery System Based on Polycaprolactone/Chitosan/Vancomycin-Preclinical Study. Pharmaceutics 2023; 15:1763. [PMID: 37376211 DOI: 10.3390/pharmaceutics15061763] [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: 05/06/2023] [Revised: 06/10/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
Acute and chronic bone infections, especially those caused by methicillin-resistant Staphylococcus aureus (MRSA), remains a major complication and therapeutic challenge. It is documented that local administration of vancomycin offers better results than the usual routes of administration (e.g., intravenous) when ischemic areas are present. In this work, we evaluate the antimicrobial efficacy against S. aureus and S. epidermidis of a novel hybrid 3D-printed scaffold based on polycaprolactone (PCL) and a chitosan (CS) hydrogel loaded with different vancomycin (Van) concentrations (1, 5, 10, 20%). Two cold plasma treatments were used to improve the adhesion of CS hydrogels to the PCL scaffolds by decreasing PCL hydrophobicity. Vancomycin release was measured by means of HPLC, and the biological response of ah-BM-MSCs growing in the presence of the scaffolds was evaluated in terms of cytotoxicity, proliferation, and osteogenic differentiation. The PCL/CS/Van scaffolds tested were found to be biocompatible, bioactive, and bactericide, as demonstrated by no cytotoxicity (LDH activity) or functional alteration (ALP activity, alizarin red staining) of the cultured cells and by bacterial inhibition. Our results suggest that the scaffolds developed would be excellent candidates for use in a wide range of biomedical fields such as drug delivery systems or tissue engineering applications.
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Affiliation(s)
- Iván López-González
- Tissue Regeneration and Repair Group: Orthobiology, Biomaterials and Tissue Engineering, UCAM-Universidad Católica de Murcia, Campus de los Jerónimos 135, Guadalupe, 30107 Murcia, Spain
| | - Ana Belén Hernández-Heredia
- Molecular Recognition and Encapsulation Research Group (REM), Health Sciences Department, UCAM-Universidad Católica de Murcia, Campus de los Jerónimos 135, Guadalupe, 30107 Murcia, Spain
| | - María Isabel Rodríguez-López
- Molecular Recognition and Encapsulation Research Group (REM), Health Sciences Department, UCAM-Universidad Católica de Murcia, Campus de los Jerónimos 135, Guadalupe, 30107 Murcia, Spain
| | - David Auñón-Calles
- Molecular Recognition and Encapsulation Research Group (REM), Health Sciences Department, UCAM-Universidad Católica de Murcia, Campus de los Jerónimos 135, Guadalupe, 30107 Murcia, Spain
| | - Mohamed Boudifa
- CRITT-Matériaux Innovation, 9 Rue Claude Chrétien, Campus Sup Ardenne, 08000 Charleville-Mézières, France
| | - José Antonio Gabaldón
- Molecular Recognition and Encapsulation Research Group (REM), Health Sciences Department, UCAM-Universidad Católica de Murcia, Campus de los Jerónimos 135, Guadalupe, 30107 Murcia, Spain
| | - Luis Meseguer-Olmo
- Tissue Regeneration and Repair Group: Orthobiology, Biomaterials and Tissue Engineering, UCAM-Universidad Católica de Murcia, Campus de los Jerónimos 135, Guadalupe, 30107 Murcia, Spain
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Cheng D, Ding R, Jin X, Lu Y, Bao W, Zhao Y, Chen S, Shen C, Yang Q, Wang Y. Strontium Ion-Functionalized Nano-Hydroxyapatite/Chitosan Composite Microspheres Promote Osteogenesis and Angiogenesis for Bone Regeneration. ACS APPLIED MATERIALS & INTERFACES 2023; 15:19951-19965. [PMID: 37043370 DOI: 10.1021/acsami.3c00655] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Critical-size bone defects are an important problem in clinical practice, which usually occurs in severe trauma, or tumor resection, and cannot heal completely and autonomously. Implantation of grafts is often required to promote the regeneration of critical-size bone defects. Metal ions play an important role in human health, as they affect the body's metabolism and the tissue function. Strontium ions (Sr2+) can promote osteogenesis and angiogenesis. Herein, we prepared nano-hydroxyapatite (nHA)/chitosan (CS) composite microspheres with a uniform particle size distribution and an extracellular matrix-like nanofiber structure using microfluidic technology and direct alkali-induced gelation. Strontium ions were stably added into the microspheres by using polydopamine (PDA) to chelate metal ions forming a bone repair material (nHA/CS@PDA-Sr) with good bioactivity. The coordination reaction of PDA can effectively control the release of strontium ions and avoid the negative effects caused by the high strontium concentration. Our in vitro experiments showed that the composite microspheres had good biocompatibility and that the PDA coating promotes cell adhesion. The slow release of strontium ions can effectively promote mesenchymal stem cells osteogenic differentiation and the vascularization of endothelial cells. In addition, we injected composite microspheres into cranial defects of rats to evaluate osseointegration in vivo. The results showed that nHA/CS@PDA-Sr could effectively promote bone regeneration in the defect area. This study demonstrates that composite microspheres stimulate bone repair providing a promising way for bone-defect regeneration.
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Affiliation(s)
- Dawei Cheng
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei 230032, P. R. China
| | - Ruyuan Ding
- Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, P. R. China
| | - Xin Jin
- Key Laboratory of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei 230032, P. R. China
| | - Yifan Lu
- Key Laboratory of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei 230032, P. R. China
| | - Weimin Bao
- Key Laboratory of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei 230032, P. R. China
| | - Yang Zhao
- Department of Orthopedics, Lu'an Hospital of Anhui Medical University, Lu'an 237000, P. R. China
| | - Shi Chen
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei 230032, P. R. China
| | - Cailiang Shen
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei 230032, P. R. China
| | - Qing Yang
- Hefei National Research Center of Physical Sciences at the Microscale, University of Science and Technology of China (USTC), Hefei 230026, P. R. China
- Department of Chemistry, University of Science and Technology of China (USTC), Hefei 230026, P. R. China
| | - Yuanyin Wang
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei 230032, P. R. China
- Key Laboratory of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei 230032, P. R. China
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Li Q, Chang B, Dong H, Liu X. Functional microspheres for tissue regeneration. Bioact Mater 2022; 25:485-499. [PMID: 37056261 PMCID: PMC10087113 DOI: 10.1016/j.bioactmat.2022.07.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 07/13/2022] [Accepted: 07/26/2022] [Indexed: 11/02/2022] Open
Abstract
As a new type of injectable biomaterials, functional microspheres have attracted increasing attention in tissue regeneration because they possess some advantageous properties compared to other biomaterials, including hydrogels. A variety of bio-inspired microspheres with unique structures and properties have been developed as cellular carriers and drug delivery vehicles in recent years. In this review, we provide a comprehensive summary of the progress of functional and biodegradable microspheres that have been used for tissue regeneration over the last two decades. First, we briefly introduce the biomaterials and general methods for microsphere fabrication. Next, we focus on the newly developed technologies for preparing functional microspheres, including macroporous microspheres, nanofibrous microspheres, hollow microspheres, core-shell structured microspheres, and surface-modified functional microspheres. After that, we discuss the application of functional microspheres for tissue regeneration, specifically for bone, cartilage, dental, neural, cardiac, and skin tissue regeneration. Last, we present our perspectives and future directions of functional microspheres as injectable carriers for the future advancement of tissue regeneration.
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Zhang R, Lin M, Wang C, Li Y, Li Y, Zou Q. Bioinspired fabrication of EDC-crosslinked gelatin/nanohydroxyapatite injectable microspheres for bone repair. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2082423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Rui Zhang
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, China
| | - Mingyue Lin
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, China
| | - Chenxin Wang
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, China
| | - Yufan Li
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, China
| | - Yubao Li
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, China
| | - Qin Zou
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, China
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Mirza S, Jolly R, Zia I, Umar MS, Owais M, Shakir M. Fabrication of Biobased Nanocomposites by Chemical Intervention of Nano‐Hydroxyapatite in Aloe Vera Gel‐Guava Seed Matrix for Bone Tissue Engineering. ChemistrySelect 2022. [DOI: 10.1002/slct.202103051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sumbul Mirza
- Inorganic chemistry Laboratory Department of Chemistry Aligarh Muslim University Aligarh 202002 India
| | - Reshma Jolly
- Inorganic chemistry Laboratory Department of Chemistry Aligarh Muslim University Aligarh 202002 India
| | - Iram Zia
- Inorganic chemistry Laboratory Department of Chemistry Aligarh Muslim University Aligarh 202002 India
| | - Mohd S. Umar
- Molecular Immunology group Lab Interdisciplinary Biotechnology Unit Aligarh Muslim University Aligarh 202002 India
| | - Mohammad Owais
- Molecular Immunology group Lab Interdisciplinary Biotechnology Unit Aligarh Muslim University Aligarh 202002 India
| | - Mohammad Shakir
- Inorganic chemistry Laboratory Department of Chemistry Aligarh Muslim University Aligarh 202002 India
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Li L, Yu M, Li Y, Li Q, Yang H, Zheng M, Han Y, Lu D, Lu S, Gui L. Synergistic anti-inflammatory and osteogenic n-HA/resveratrol/chitosan composite microspheres for osteoporotic bone regeneration. Bioact Mater 2020; 6:1255-1266. [PMID: 33210023 PMCID: PMC7653289 DOI: 10.1016/j.bioactmat.2020.10.018] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 10/23/2020] [Accepted: 10/23/2020] [Indexed: 02/07/2023] Open
Abstract
The development of functional materials for osteoporosis is ultimately required for bone remodeling. However, grafts were accompanied by increasing pro-inflammatory cytokines that impaired bone formation. In this work, nano-hydroxyapatite (n-HA)/resveratrol (Res)/chitosan (CS) composite microspheres were designed to create a beneficial microenvironment and help improve the osteogenesis by local sustained release of Res. Study of in vitro release confirmed the feasibility of n-HA/Res/CS microspheres for controlled Res release. Notably, microspheres had anti-inflammatory activity evidenced by the decreased expression of pro-inflammatory cytokines TNF-α, IL-1β and iNOS in RAW264.7 cells in a dose dependent manner. Further, enhanced adhesion and proliferation of BMSCs seeded onto microspheres demonstrated that composite microspheres were conducive to cell growth. The ability to enhance osteo-differentiation was supported by up-regulation of Runx2, ALP, Col-1 and OCN, and substantial mineralization in osteogenic medium. When implanted into bone defects in the osteoporotic rat femoral condyles, enhanced entochondrostosis and bone regeneration suggested that the n-HA/Res/CS composite microspheres were more favorable for impaired fracture healing. The results indicated that optimized n-HA/Res/CS composite microspheres could serve as promising multifunctional fillers for osteoporotic bone defect/fracture treatment. The microspheres with sustained Res release possessed obvious anti-inflammatory activity. The microspheres were favorable for cell growth and osteo-differentiation. Higher Res-loaded microspheres significantly improved entochondrostosis and bone remodeling. The microspheres are promising bone fillers for the healing of osteoporotic bone defects/fractures.
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Affiliation(s)
- Limei Li
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Science and Technology Achievement Incubation Center, Kunming Medical University, Kunming, 650500, China
| | - Mali Yu
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Science and Technology Achievement Incubation Center, Kunming Medical University, Kunming, 650500, China
| | - Yao Li
- Department of Stomatology, The First People's Hospital of Yunnan Province, Kunming, 650032, China
| | - Qing Li
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Science and Technology Achievement Incubation Center, Kunming Medical University, Kunming, 650500, China
| | - Hongcai Yang
- Department of Neurology, The First Affiliated Hospital, Kunming Medical University, Kunming, 650000, China
| | - Meng Zheng
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Science and Technology Achievement Incubation Center, Kunming Medical University, Kunming, 650500, China
| | - Yi Han
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Science and Technology Achievement Incubation Center, Kunming Medical University, Kunming, 650500, China
| | - Di Lu
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Science and Technology Achievement Incubation Center, Kunming Medical University, Kunming, 650500, China
| | - Sheng Lu
- Yunnan Key Laboratory of Digital Orthopaedics, Department of Orthopaedics, The First People's Hospital of Yunnan Province, Kunming, 650032, China
| | - Li Gui
- Department of Endocrinology, The Third People's Hospital of Yunnan Province, Kunming, 650011, China
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Arnaldi P, Pastorino L, Monticelli O. On an effective approach to improve the properties and the drug release of chitosan-based microparticles. Int J Biol Macromol 2020; 163:393-401. [DOI: 10.1016/j.ijbiomac.2020.07.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/19/2020] [Accepted: 07/03/2020] [Indexed: 11/28/2022]
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Fan C, Zhan SH, Dong ZX, Yang W, Deng WS, Liu X, Wang DA, Sun P. Cross-linked gelatin microsphere-based scaffolds as a delivery vehicle of MC3T3-E1 cells: in vitro and in vivo evaluation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 108:110399. [DOI: 10.1016/j.msec.2019.110399] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/29/2019] [Accepted: 11/04/2019] [Indexed: 12/21/2022]
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L. Dantas MJ, F. dos Santos BF, A. Tavares A, Maciel MA, Lucena BDM, L. Fook MV, de L. Silva SM. The Impact of the Ionic Cross-Linking Mode on the Physical and In Vitro Dexamethasone Release Properties of Chitosan/Hydroxyapatite Beads. Molecules 2019; 24:E4510. [PMID: 31835480 PMCID: PMC6943658 DOI: 10.3390/molecules24244510] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 10/29/2019] [Accepted: 11/01/2019] [Indexed: 12/16/2022] Open
Abstract
In this study, the effect of the ionic cross-linking mode on the ability to control physical properties and in vitro release behavior of the dexamethasone (DEX) drug from chitosan (CS) and chitosan/hydroxyapatite (CS/HA) beads was investigated. CS solutions without and with HA and DEX were dripped into two coagulation solutions, prepared with a non-toxic ionic crosslinker (sodium tripolyphosphate, TPP) and distilled water, one at pH = 9.0 and other at pH = 6.0. Optical microscopy (OM) and scanning electron microscopy (SEM) results showed changes on the surface topology of the beads, with a reduction of roughness for beads prepared at pH = 6.0 and an increase for the one prepared at pH = 9.0. The diameter and sphericity of the beads prepared at pH = 6.0 proved more uniform and had a larger pore size with a good interconnectivity framework. Attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) suggested a higher crosslinking degree for beads prepared at pH = 6.0, corroborated by X-ray diffraction profiles (XRD) analysis that indicated a decrease in the crystalline structure for such beads. In in vitro drug release data, all beads presented a sustained release during the studied period (24 h). The drug release rate was affected by the pH of the coagulation solution used in the preparation of the beads. The in vitro kinetics of the release process was of the Peppas-Sahlin model, controlled by both diffusion and relaxation of polymer chains or swelling (anomalous transport mechanism). Our results suggest that DEX-loaded CS/HA beads, crosslinked in TPP coagulation solution at pH = 9.0, led to a decrease in the DEX release rate and prolonged the release period. Thus, this composition might have prospective as a functional material for bone and cartilage tissue engineering.
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Affiliation(s)
- Maria Jucélia L. Dantas
- Postgraduate Program in Materials Science and Engineering, Department of Materials Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil; (M.J.L.D.); (B.F.F.d.S.); (A.A.T.); (B.d.M.L.)
| | - Bárbara Fernanda F. dos Santos
- Postgraduate Program in Materials Science and Engineering, Department of Materials Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil; (M.J.L.D.); (B.F.F.d.S.); (A.A.T.); (B.d.M.L.)
| | - Albaniza A. Tavares
- Postgraduate Program in Materials Science and Engineering, Department of Materials Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil; (M.J.L.D.); (B.F.F.d.S.); (A.A.T.); (B.d.M.L.)
| | - Matheus A. Maciel
- Department of Materials Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil; (M.A.M.); (M.V.L.F.)
| | - Breno de Medeiros Lucena
- Postgraduate Program in Materials Science and Engineering, Department of Materials Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil; (M.J.L.D.); (B.F.F.d.S.); (A.A.T.); (B.d.M.L.)
| | - Marcus Vinícius L. Fook
- Department of Materials Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil; (M.A.M.); (M.V.L.F.)
| | - Suédina Maria de L. Silva
- Department of Materials Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil; (M.A.M.); (M.V.L.F.)
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Witzler M, Büchner D, Shoushrah SH, Babczyk P, Baranova J, Witzleben S, Tobiasch E, Schulze M. Polysaccharide-Based Systems for Targeted Stem Cell Differentiation and Bone Regeneration. Biomolecules 2019; 9:E840. [PMID: 31817802 PMCID: PMC6995597 DOI: 10.3390/biom9120840] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/22/2019] [Accepted: 12/03/2019] [Indexed: 02/07/2023] Open
Abstract
Bone tissue engineering is an ever-changing, rapidly evolving, and highly interdisciplinary field of study, where scientists try to mimic natural bone structure as closely as possible in order to facilitate bone healing. New insights from cell biology, specifically from mesenchymal stem cell differentiation and signaling, lead to new approaches in bone regeneration. Novel scaffold and drug release materials based on polysaccharides gain increasing attention due to their wide availability and good biocompatibility to be used as hydrogels and/or hybrid components for drug release and tissue engineering. This article reviews the current state of the art, recent developments, and future perspectives in polysaccharide-based systems used for bone regeneration.
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Affiliation(s)
- Markus Witzler
- Department of Natural Sciences, Bonn-Rhein-Sieg University of Applied Sciences, von-Liebig-Str. 20, 53359 Rheinbach, Germany; (M.W.); (D.B.); (S.H.S.); (P.B.); (S.W.); (E.T.)
| | - Dominik Büchner
- Department of Natural Sciences, Bonn-Rhein-Sieg University of Applied Sciences, von-Liebig-Str. 20, 53359 Rheinbach, Germany; (M.W.); (D.B.); (S.H.S.); (P.B.); (S.W.); (E.T.)
| | - Sarah Hani Shoushrah
- Department of Natural Sciences, Bonn-Rhein-Sieg University of Applied Sciences, von-Liebig-Str. 20, 53359 Rheinbach, Germany; (M.W.); (D.B.); (S.H.S.); (P.B.); (S.W.); (E.T.)
| | - Patrick Babczyk
- Department of Natural Sciences, Bonn-Rhein-Sieg University of Applied Sciences, von-Liebig-Str. 20, 53359 Rheinbach, Germany; (M.W.); (D.B.); (S.H.S.); (P.B.); (S.W.); (E.T.)
| | - Juliana Baranova
- Laboratory of Neurosciences, Department of Biochemistry, Institute of Chemistry–USP, University of São Paulo, Avenida Professor Lineu Prestes 748, Vila Universitaria, São Paulo, SP 05508-000, Brazil;
| | - Steffen Witzleben
- Department of Natural Sciences, Bonn-Rhein-Sieg University of Applied Sciences, von-Liebig-Str. 20, 53359 Rheinbach, Germany; (M.W.); (D.B.); (S.H.S.); (P.B.); (S.W.); (E.T.)
| | - Edda Tobiasch
- Department of Natural Sciences, Bonn-Rhein-Sieg University of Applied Sciences, von-Liebig-Str. 20, 53359 Rheinbach, Germany; (M.W.); (D.B.); (S.H.S.); (P.B.); (S.W.); (E.T.)
| | - Margit Schulze
- Department of Natural Sciences, Bonn-Rhein-Sieg University of Applied Sciences, von-Liebig-Str. 20, 53359 Rheinbach, Germany; (M.W.); (D.B.); (S.H.S.); (P.B.); (S.W.); (E.T.)
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Singh YP, Dasgupta S, Bhaskar R. Preparation, characterization and bioactivities of nano anhydrous calcium phosphate added gelatin-chitosan scaffolds for bone tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:1756-1778. [PMID: 31526176 DOI: 10.1080/09205063.2019.1663474] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Gelatin, chitosan and nano calcium phosphate based composite scaffold with tailored architectures and properties has great potential for bone regeneration. Herein, we aimed to improve the physico chemical, mechanical and osteogenic properties of 3D porous scaffold by incorporation of dihydrogen calcium phosphate anhydrous (DCPA) nanoparticles into biopolymer matrix with variation in composition in the prepared scaffolds. Scaffolds were prepared from the slurry containing gelatin, chitosan and synthesized nano DCPA particle using lyophilization technique. DCPA nano particles were synthesized using calcium carbonate and phosphoric acid in water-ethanol medium. XRD pattern showed phase pure DCPA in synthesized nanopowder. Scaffolds were prepared by addition of DCPA nanoparticles to the extent of 5-10 wt% of total polymer into gelatin-chitosan solution with solid loading varying between 2.5 and 2.75 wt%. The prepared scaffold showed interconnected porosity with pore size varying between 110 and 200 micrometer. With addition of DCPA nanoparticles, average pore size of the prepared scaffolds decreased. With increase in nano ceramic phase content from 5 wt% to 10 wt% of total polymer, the compressive strength of the scaffold increased. Scaffold containing 10 wt% DCPA showed the highest average compressive strength of 2.2 MPa. Higher cellular activities were observed in DCPA containing scaffolds as compared to pure gelatin chitosan scaffold suggesting the fact that nano DCPA addition into the scaffold promoted better osteoblast adhesion and proliferation as evident from MTT assay and scanning electron microscopic (SEM) investigation of osteoblast cultured scaffolds. A higher degree of lamellopodia and filopodia extensions and better spreading behavior of osteoblasts were observed in FESEM micrographs of MG 63 cultured DCPA containing scaffold. The results demonstrated that both mechanical strength and osteogenic properties of gelatin-chitosan scaffold could be improved by addition of anhydrous dihydrogen calcium phosphate nanoparticles into it.
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Affiliation(s)
- Yogendra Pratap Singh
- Department of Ceramic Engineering, National Institute of Technology , Rourkela , India
| | - Sudip Dasgupta
- Department of Ceramic Engineering, National Institute of Technology , Rourkela , India
| | - Rakesh Bhaskar
- Department of Biotechnology and Medical Engineering, National Institute of Technology , Rourkela , India
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Mei Q, Lin L, Wang J, Cai B, Zou Q, Li J, Li Y, Zuo Y. Chemical reaction kinetics and the characteristic properties of injectable adhesives of nano-hydroxyapatite/Ag3PO4/polyurethane for bone and tooth repair. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0707-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Intercalated chitosan/hydroxyapatite nanocomposites: Promising materials for bone tissue engineering applications. Carbohydr Polym 2017; 175:38-46. [DOI: 10.1016/j.carbpol.2017.07.054] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 06/15/2017] [Accepted: 07/18/2017] [Indexed: 12/22/2022]
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