1
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Wang H, Yu R, Wang M, Wang S, Ouyang X, Yan Z, Chen S, Wang W, Wu F, Fan C. Insulin-like growth factor binding protein 4 loaded electrospun membrane ameliorating tendon injury by promoting retention of IGF-1. J Control Release 2023; 356:162-174. [PMID: 36868516 DOI: 10.1016/j.jconrel.2023.02.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 02/18/2023] [Accepted: 02/27/2023] [Indexed: 03/05/2023]
Abstract
Tendon injury is one of the most common musculoskeletal disorders that impair joint mobility and lower quality of life. The limited regenerative capacity of tendon remains a clinical challenge. Local delivery of bioactive protein is a viable therapeutic approach for tendon healing. Insulin-like growth factor binding protein 4 (IGFBP-4) is a secreted protein capable of binding and stabilizing insulin-like growth factor 1 (IGF-1). Here, we applied an aqueous-aqueous freezing-induced phase separation technology to obtain the IGFBP4-encapsulated dextran particles. Then, we added the particles into poly (L-lactic acid) (PLLA) solution to fabricate IGFBP4-PLLA electrospun membrane for efficient IGFBP-4 delivery. The scaffold showed excellent cytocompatibility and a sustained release of IGFBP-4 for nearly 30 days. In cellular experiments, IGFBP-4 promoted tendon-related and proliferative markers expression. In a rat Achilles tendon injury model, immunohistochemistry and quantitative real-time polymerase chain reaction confirmed better outcomes by using the IGFBP4-PLLA electrospun membrane at the molecular level. Furthermore, the scaffold effectively promoted tendon healing in functional performance, ultrastructure and biomechanical properties. We found addition of IGFBP-4 promoted IGF-1 retention in tendon postoperatively and then facilitated protein synthesis via IGF-1/AKT signaling pathway. Overall, our IGFBP4-PLLA electrospun membrane provides a promising therapeutic strategy for tendon injury.
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Affiliation(s)
- Hui Wang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China; Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai 200233, PR China
| | - Ruyue Yu
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Meng Wang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Shikun Wang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China; Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai 200233, PR China
| | - Xingyu Ouyang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China; Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai 200233, PR China
| | - Zhiwen Yan
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China; Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai 200233, PR China
| | - Shuai Chen
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China; Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai 200233, PR China
| | - Wei Wang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China; Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai 200233, PR China.
| | - Fei Wu
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, PR China.
| | - Cunyi Fan
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China; Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai 200233, PR China.
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EL-Ghoul Y, Alminderej FM, Alsubaie FM, Alrasheed R, Almousa NH. Recent Advances in Functional Polymer Materials for Energy, Water, and Biomedical Applications: A Review. Polymers (Basel) 2021; 13:4327. [PMID: 34960878 PMCID: PMC8708011 DOI: 10.3390/polym13244327] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/02/2021] [Accepted: 12/06/2021] [Indexed: 01/10/2023] Open
Abstract
Academic research regarding polymeric materials has been of great interest. Likewise, polymer industries are considered as the most familiar petrochemical industries. Despite the valuable and continuous advancements in various polymeric material technologies over the last century, many varieties and advances related to the field of polymer science and engineering still promise a great potential for exciting new applications. Research, development, and industrial support have been the key factors behind the great progress in the field of polymer applications. This work provides insight into the recent energy applications of polymers, including energy storage and production. The study of polymeric materials in the field of enhanced oil recovery and water treatment technologies will be presented and evaluated. In addition, in this review, we wish to emphasize the great importance of various functional polymers as effective adsorbents of organic pollutants from industrial wastewater. Furthermore, recent advances in biomedical applications are reviewed and discussed.
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Affiliation(s)
- Yassine EL-Ghoul
- Department of Chemistry, College of Science, Qassim University, King Abdulaziz Rd, P.O. Box 1162, Buraidah 51452, Saudi Arabia
- Textile Engineering Laboratory, University of Monastir, Monastir 5019, Tunisia
| | - Fahad M. Alminderej
- Department of Chemistry, College of Science, Qassim University, King Abdulaziz Rd, P.O. Box 1162, Buraidah 51452, Saudi Arabia
| | - Fehaid M. Alsubaie
- National Center for Chemical Catalysis Technology, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh 11442, Saudi Arabia;
| | - Radwan Alrasheed
- National Center for Desalination & Water Treatment Technology, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh 11442, Saudi Arabia;
| | - Norah H. Almousa
- National Center for Chemical Catalysis Technology, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh 11442, Saudi Arabia;
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Batista H, Freitas JP, Abrunheiro A, Gonçalves T, Gil MH, Figueiredo M, Coimbra P. Electrospun composite fibers of PLA/PLGA blends and mesoporous silica nanoparticles for the controlled release of gentamicin sulfate. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1876053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Henrique Batista
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, Coimbra, Portugal
| | - João P. Freitas
- Department of Orthopaedics, CHUC, Coimbra, Portugal
- Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Alexandra Abrunheiro
- CNC-Center for Neurosciences and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Teresa Gonçalves
- Faculty of Medicine, University of Coimbra, Coimbra, Portugal
- CNC-Center for Neurosciences and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Maria H. Gil
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, Coimbra, Portugal
| | - Margarida Figueiredo
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, Coimbra, Portugal
| | - Patrícia Coimbra
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, Coimbra, Portugal
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Liu C, Li X, Zhao Q, Xie Y, Yao X, Wang M, Cao F. Nanofibrous bicomponent scaffolds for the dual delivery of NGF and GDNF: controlled release of growth factors and their biological effects. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 32:9. [PMID: 33471206 PMCID: PMC7817556 DOI: 10.1007/s10856-020-06479-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 12/18/2020] [Indexed: 06/01/2023]
Abstract
Electrospun fibrous scaffolds capable of providing dual growth factor delivery in a controlled manner have distinctive advantages for tissue engineering. In this study, we have investigated the formation, structure, and characteristics/properties of fibrous bicomponent scaffolds for the dual delivery of glial cell line-derived neurotrophic factor (GDNF) and nerve growth factor (NGF) for peripheral nerve tissue regeneration. GDNF and NGF were incorporated into core-shell structured poly(lactic-co-glycolic acid) (PLGA) and poly (D,L-lactic acid) (PDLLA) nanofibers, respectively, through emulsion electrospinning. Using dual-source dual-power electrospinning, bicomponent scaffolds composed of GDNF/PLGA fibers and NGF/PDLLA fibers with different fiber component ratios were produced. The structure, properties, and in vitro release behavior of mono- and bicomponent scaffolds were systematically investigated. Concurrent and sustained release of GDNF and NGF from bicomponent scaffolds was achieved and their release profiles could be tuned. In vitro biological investigations were conducted. Rat pheochromocytoma cells were found to attach, spread, and proliferate on all scaffolds. The release of growth factors from scaffolds could induce much improved neurite outgrowth and neural differentiation. GDNF and NGF released from GDNF/PLGA scaffolds and NGF/PDLLA scaffolds, respectively, could induce dose-dependent neural differentiation separately. GDNF and NGF released from bicomponent scaffolds exerted a synergistic effect on promoting neural differentiation.
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Affiliation(s)
- Chaoyu Liu
- Department of Research and Development, Shenzhen Shiningbiotek Co., Ltd, Shenzhen, 518055, P. R. China.
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China.
| | - Xiaohua Li
- Department of Research and Development, Shenzhen Shiningbiotek Co., Ltd, Shenzhen, 518055, P. R. China
- Oncology Center, Hubei University of Medicine, Shiyan, 442000, P. R. China
| | - Qilong Zhao
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen, 518055, P. R. China
| | - Yuancai Xie
- Department of Thoracic, Peking University Shenzhen Hospital, Shenzhen, 518036, P. R. China
| | - Xumei Yao
- Department of Research and Development, Shenzhen Shiningbiotek Co., Ltd, Shenzhen, 518055, P. R. China
| | - Min Wang
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Fengjun Cao
- Oncology Center, Hubei University of Medicine, Shiyan, 442000, P. R. China.
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5
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Luo J, Zhu J, Wang L, Kang J, Wang X, Xiong J. Co-electrospun nano-/microfibrous composite scaffolds with structural and chemical gradients for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 119:111622. [PMID: 33321664 DOI: 10.1016/j.msec.2020.111622] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 09/29/2020] [Accepted: 10/05/2020] [Indexed: 12/18/2022]
Abstract
Recent trends in scaffold design for tissue engineering have focused on providing structural, mechanical and chemical cues for guiding cell behaviors. In this study, we presented a structural/compositional gradient nano-/microfibrous mesh by co-electrospinning, using silk fibroin-poly(ε-caprolactone) (SF-PCL) nanofibers and PCL microfibers. The pore size, porosity, and physical property of the gradient meshes were qualified. Cell proliferation of mouse osteoblast-like MC3T3-E1 cells was carried out to estimate the effect of structural and compositional gradients on biocompatibility. Furthermore, the 2-D mesh was rolled up and the compressive property of 3-D cylinder was investigated. The results suggested that the rolled-up gradient cylinder scaffold exhibited higher osteogenic differentiation compared to the pristine nanofibrous cylinder sample. By incorporating Chinese medicine ginsenoside Rg1, sustained release was achieved in composite meshes. Rg1-containing nanofibrous meshes and Rg1 gradient cylinders enhanced the cell proliferation of human umbilical vein endothelial cells (HUVECs). The developed fibrous scaffold may provide structural, compositional, and chemical gradients for bone regeneration. BRIEFS: Structural and chemical gradient fibrous scaffold fabricated by co-electrospinning.
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Affiliation(s)
- Jingjing Luo
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China; College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Jiang Zhu
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Lijun Wang
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Jing Kang
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Xin Wang
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Jie Xiong
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China.
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6
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Dos Santos DM, Correa DS, Medeiros ES, Oliveira JE, Mattoso LHC. Advances in Functional Polymer Nanofibers: From Spinning Fabrication Techniques to Recent Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2020; 12:45673-45701. [PMID: 32937068 DOI: 10.1021/acsami.0c12410] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Functional polymeric micro-/nanofibers have emerged as promising materials for the construction of structures potentially useful in biomedical fields. Among all kinds of technologies to produce polymer fibers, spinning methods have gained considerable attention. Herein, we provide a recent review on advances in the design of micro- and nanofibrous platforms via spinning techniques for biomedical applications. Specifically, we emphasize electrospinning, solution blow spinning, centrifugal spinning, and microfluidic spinning approaches. We first introduce the fundamentals of these spinning methods and then highlight the potential biomedical applications of such micro- and nanostructured fibers for drug delivery, tissue engineering, regenerative medicine, disease modeling, and sensing/biosensing. Finally, we outline the current challenges and future perspectives of spinning techniques for the practical applications of polymer fibers in the biomedical field.
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Affiliation(s)
- Danilo M Dos Santos
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, 13560-970, São Carlos, São Paulo, Brazil
| | - Daniel S Correa
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, 13560-970, São Carlos, São Paulo, Brazil
| | - Eliton S Medeiros
- Materials and Biosystems Laboratory (LAMAB), Department of Materials Engineering (DEMAT), Federal University of Paraíba (UFPB), Cidade Universitária, 58.051-900, João Pessoa, Paraiba, Brazil
| | - Juliano E Oliveira
- Department of Engineering, Federal University of Lavras (UFLA), 37200-900, Lavras, Minas Gerais, Brazil
| | - Luiz H C Mattoso
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, 13560-970, São Carlos, São Paulo, Brazil
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7
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Iglesias-Echevarria M, Durante L, Johnson R, Rafuse M, Ding Y, Bonani W, Maniglio D, Tan W. Coaxial PCL/PEG-thiol-ene microfiber with tunable physico-chemical properties for regenerative scaffolds. Biomater Sci 2019; 7:3640-3651. [PMID: 31165794 PMCID: PMC6702085 DOI: 10.1039/c9bm00388f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Tissue regeneration requires scaffolds that exhibit mechanical properties similar to the tissues to be replaced while allowing cell infiltration and extracellular matrix production. Ideally, the scaffolds' porous architecture and physico-chemical properties can be precisely defined to address regenerative needs. We thus developed techniques to produce hybrid fibers coaxially structured with a polycaprolactone core and a 4-arm, polyethylene glycol thiol-norbornene sheath. We assessed the respective effects of crosslink density and sheath polymer size on the scaffold architecture, physical and mechanical properties, as well as cell-scaffold interactions in vitro and in vivo. All scaffolds displayed high elasticity, swelling and strength, mimicking soft tissue properties. Importantly, the thiol-ene hydrogel sheath enabled tunable softness and peptide tethering for cellular activities. With increased photopolymerization, stiffening and reduced swelling of scaffolds were found due to intra- and inter-fiber crosslinking. More polymerized scaffolds also enhanced the cell-scaffold interaction in vitro and induced spontaneous, deep cell infiltration to produce collagen and elastin for tissue regeneration in vivo. The molecular weight of sheath polymer provides an additional mechanism to alter the physical properties and biological activities of scaffolds. Overall, these robust scaffolds with tunable elasticity and regenerative cues offered a versatile and effective platform for tissue regeneration.
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8
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Chitosan/LiCl composite scaffolds promote skin regeneration in full-thickness loss. SCIENCE CHINA-LIFE SCIENCES 2019; 63:552-562. [DOI: 10.1007/s11427-018-9389-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 11/24/2018] [Indexed: 12/21/2022]
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9
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Chen S, Li R, Li X, Xie J. Electrospinning: An enabling nanotechnology platform for drug delivery and regenerative medicine. Adv Drug Deliv Rev 2018; 132:188-213. [PMID: 29729295 DOI: 10.1016/j.addr.2018.05.001] [Citation(s) in RCA: 207] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 04/03/2018] [Accepted: 05/01/2018] [Indexed: 02/06/2023]
Abstract
Electrospinning provides an enabling nanotechnology platform for generating a rich variety of novel structured materials in many biomedical applications including drug delivery, biosensing, tissue engineering, and regenerative medicine. In this review article, we begin with a thorough discussion on the method of producing 1D, 2D, and 3D electrospun nanofiber materials. In particular, we emphasize on how the 3D printing technology can contribute to the improvement of traditional electrospinning technology for the fabrication of 3D electrospun nanofiber materials as drug delivery devices/implants, scaffolds or living tissue constructs. We then highlight several notable examples of electrospun nanofiber materials in specific biomedical applications including cancer therapy, guiding cellular responses, engineering in vitro 3D tissue models, and tissue regeneration. Finally, we finish with conclusions and future perspectives of electrospun nanofiber materials for drug delivery and regenerative medicine.
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10
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Liu C, Li X, Xu F, Cong H, Li Z, Song Y, Wang M. Spatio-temporal release of NGF and GDNF from multi-layered nanofibrous bicomponent electrospun scaffolds. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 29:102. [PMID: 29955977 PMCID: PMC6022522 DOI: 10.1007/s10856-018-6105-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 06/14/2018] [Indexed: 06/02/2023]
Abstract
Scaffolds capable of providing dual neurotrophic factor (NTF) delivery with different release kinetics, spatial delivery of NTFs at different loci and topographical guidance are promising for enhanced peripheral nerve regeneration. In this study, we have designed and fabricated multi-layered aligned-fiber scaffolds through combining emulsion electrospinning, sequential electrospinning and high-speed electrospinning (HS-ES) to modulate the release behavior of glial cell line-derived growth factor(GDNF) and nerve growth factor (NGF). GDNF and NGF were incorporated into poly(lactic-co-glycolic acid) (PLGA) fibers and poly(D,L-lactic acid) (PDLLA) fibers, respectively. Aligned fibers were obtained in each layer of multi-layered scaffolds and relatively thick tri-layered and tetra-layered scaffolds with controlled layer thickness were obtained. Their morphology, structure, properties, and the in vitro release of growth factors were examined. Dual and spatio-temporal release of GDNF and NGF with different release kinetics from multi-layered scaffolds was successfully demonstrated. High separation efficiency by PDLLA fibrous barrier layer for spatial neurotrophic factor delivery from both tri-layered scaffolds and tetra-layered scaffolds was achieved.
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Affiliation(s)
- Chaoyu Liu
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China.
- Department of Research and Development, Shenzhen Gene Health Bio Tech Co., Ltd, Shenzhen, 518055, China.
| | - Xiaohua Li
- Department of Research and Development, Shenzhen Gene Health Bio Tech Co., Ltd, Shenzhen, 518055, China
| | - Feiyue Xu
- Department of Research and Development, Shenzhen Gene Health Bio Tech Co., Ltd, Shenzhen, 518055, China
| | - Haibo Cong
- Department of Reconstructive Microsurgery, Weihai Central Hospital, Weihai, 264400, China
| | - Zongxian Li
- Department of Oncology, Weihai Central Hospital, Weihai, 264400, China
| | - Yuan Song
- Department of Research and Development, Shenzhen Gene Health Bio Tech Co., Ltd, Shenzhen, 518055, China
| | - Min Wang
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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11
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Liu C, Wang C, Zhao Q, Li X, Xu F, Yao X, Wang M. Incorporation and release of dual growth factors for nerve tissue engineering using nanofibrous bicomponent scaffolds. ACTA ACUST UNITED AC 2018. [PMID: 29537390 DOI: 10.1088/1748-605x/aab693] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Electrospun fibrous scaffolds have been extensively used as cell-supporting matrices or delivery vehicles for various biomolecules in tissue engineering. Biodegradable scaffolds with tunable degradation behaviors are favorable for various resorbable tissue replacements. In nerve tissue engineering, delivery of growth factors (GFs) such as nerve growth factor (NGF) and glial cell line-derived neurotrophic factor (GDNF) from scaffolds can be used to promote peripheral nerve repair. In this study, using the established dual-source dual-power electrospinning technique, bicomponent scaffolds incorporated with NGF and GDNF were designed and demonstrated as a strategy to develop scaffolds providing dual GF delivery. NGF and GDNF were encapsulated in poly(D, L-lactic acid) (PDLLA) and poly(lactic-co-glycolic acid) (PLGA) nanofibers, respectively, via emulsion electrospinning. Bicomponent scaffolds with various mass ratios of GDNF/PLGA fibers to NGF/PDLLA fibers were fabricated. Their morphology, structure, properties, and the in vitro degradation were examined. Both types of core-shell structured fibers were evenly distributed in bicomponent scaffolds. Robust scaffolds with varying component ratios were fabricated with average fiber diameter ranging from 307 ± 100 nm to 688 ± 129 nm. The ultimate tensile stress and elastic modulus could be tuned ranging from 0.23 ± 0.07 MPa to 1.41 ± 0.23 MPa, 11.1 ± 3.0 MPa to 75.9 ± 3.3 MPa, respectively. Adjustable degradation was achieved and the weight loss of scaffolds ranged from 9.2% to 44.0% after 42 day degradation test. GDNF and NGF were incorporated with satisfactory encapsulation efficiency and their bioactivity were well preserved. Sustained release of both types of GFs was also achieved.
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Affiliation(s)
- Chaoyu Liu
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, People's Republic of China. Department of Research and Development, Shenzhen Gene Health Bio Tech Co., Ltd, Shenzhen, 518055, People's Republic of China
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12
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He J, Jiang N, Qin T, Zhang W, Liu Z, Liu Y, Li D. Microfiber-reinforced nanofibrous scaffolds with structural and material gradients to mimic ligament-to-bone interface. J Mater Chem B 2017; 5:8579-8590. [DOI: 10.1039/c7tb02089a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A unique electrospinning strategy is presented to fabricate microfiber-reinforced nanofibrous scaffolds with material/structure gradients to mimic native ligament–bone interface.
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Affiliation(s)
- Jiankang He
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- China
| | - Nan Jiang
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- China
| | - Ting Qin
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- China
| | - Weijie Zhang
- Department of Knee Joint Surgery
- Hong Hui Hospital
- Health Science Center
- Xi’an Jiaotong University
- Xi’an 710054
| | - Zhuo Liu
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- China
| | - Yaxiong Liu
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- China
| | - Dichen Li
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- China
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13
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Jordan AM, Viswanath V, Kim SE, Pokorski JK, Korley LTJ. Processing and surface modification of polymer nanofibers for biological scaffolds: a review. J Mater Chem B 2016; 4:5958-5974. [PMID: 32263485 DOI: 10.1039/c6tb01303a] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Polymeric fibrous constructs possess high surface area-to-volume ratios when compared with solid substrates and are quite commonly used as tissue engineering and cell growth scaffolds. An overview of important design and material considerations for fibrous scaffolds as well as an outline of both established and emerging solution- and melt-based fabrication techniques is provided. Innovative post-process surface modification avenues using "click" chemistry with both single and dual active cues as well as gradient cues, which maintain the fibrous structure are described. By combining process parameters with post-process surface modification, researchers have been able to selectively tune cellular response after seeding and culturing on fibrous constructs.
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Affiliation(s)
- Alex M Jordan
- Center for Layered Polymeric Systems, Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7202, USA.
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14
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Benetti EM, Gunnewiek MK, van Blitterswijk CA, Julius Vancso G, Moroni L. Mimicking natural cell environments: design, fabrication and application of bio-chemical gradients on polymeric biomaterial substrates. J Mater Chem B 2016; 4:4244-4257. [DOI: 10.1039/c6tb00947f] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Gradients of biomolecules on synthetic, solid substrates can efficiently mimic the natural, graded variation of properties of the extracellular matrix (ECM).
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Affiliation(s)
- Edmondo M. Benetti
- Department of Materials Science and Technology of Polymers
- MESA+ Institute for Nanotechnology
- University of Twente
- 7500 AE Enschede
- The Netherlands
| | - Michel Klein Gunnewiek
- Department of Materials Science and Technology of Polymers
- MESA+ Institute for Nanotechnology
- University of Twente
- 7500 AE Enschede
- The Netherlands
| | - Clemens A. van Blitterswijk
- Department of Complex Tissue Regeneration
- MERLN Institute for Technology Inspired Regenerative Medicine
- Maastricht University
- 6200 MD Maastricht
- The Netherlands
| | - G. Julius Vancso
- Department of Materials Science and Technology of Polymers
- MESA+ Institute for Nanotechnology
- University of Twente
- 7500 AE Enschede
- The Netherlands
| | - Lorenzo Moroni
- Department of Complex Tissue Regeneration
- MERLN Institute for Technology Inspired Regenerative Medicine
- Maastricht University
- 6200 MD Maastricht
- The Netherlands
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15
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Liu YY, Yu HC, Liu Y, Liang G, Zhang T, Hu QX. Dual drug spatiotemporal release from functional gradient scaffolds prepared using 3D bioprinting and electrospinning. POLYM ENG SCI 2015. [DOI: 10.1002/pen.24239] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yuan-Yuan Liu
- Rapid Manufacturing Engineering Center; Shanghai University; Shanghai 200444 China
- School of Mechatronic Engineering and Automation, Shanghai Key Laboratory of Intelligent Manufacturing and Robotics; Shanghai University; Shanghai 200444 China
| | - Hong-Chen Yu
- Rapid Manufacturing Engineering Center; Shanghai University; Shanghai 200444 China
| | - Yi Liu
- Rapid Manufacturing Engineering Center; Shanghai University; Shanghai 200444 China
| | - Gang Liang
- Rapid Manufacturing Engineering Center; Shanghai University; Shanghai 200444 China
| | - Ting Zhang
- Rapid Manufacturing Engineering Center; Shanghai University; Shanghai 200444 China
| | - Qing-Xi Hu
- Rapid Manufacturing Engineering Center; Shanghai University; Shanghai 200444 China
- School of Mechatronic Engineering and Automation, Shanghai Key Laboratory of Intelligent Manufacturing and Robotics; Shanghai University; Shanghai 200444 China
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Application of Wnt Pathway Inhibitor Delivering Scaffold for Inhibiting Fibrosis in Urethra Strictures: In Vitro and in Vivo Study. Int J Mol Sci 2015; 16:27659-76. [PMID: 26610467 PMCID: PMC4661908 DOI: 10.3390/ijms161126050] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 11/04/2015] [Accepted: 11/06/2015] [Indexed: 01/06/2023] Open
Abstract
Objective: To evaluate the mechanical property and biocompatibility of the Wnt pathway inhibitor (ICG-001) delivering collagen/poly(l-lactide-co-caprolactone) (P(LLA-CL)) scaffold for urethroplasty, and also the feasibility of inhibiting the extracellular matrix (ECM) expression in vitro and in vivo. Methods: ICG-001 (1 mg (2 mM)) was loaded into a (P(LLA-CL)) scaffold with the co-axial electrospinning technique. The characteristics of the mechanical property and drug release fashion of scaffolds were tested with a mechanical testing machine (Instron) and high-performance liquid chromatography (HPLC). Rabbit bladder epithelial cells and the dermal fibroblasts were isolated by enzymatic digestion method. (3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide (MTT) assay) and scanning electron microscopy (SEM) were used to evaluate the viability and proliferation of the cells on the scaffolds. Fibrolasts treated with TGF-β1 and ICG-001 released medium from scaffolds were used to evaluate the anti-fibrosis effect through immunofluorescence, real time PCR and western blot. Urethrography and histology were used to evaluate the efficacy of urethral implantation. Results: The scaffold delivering ICG-001 was fabricated, the fiber diameter and mechanical strength of scaffolds with inhibitor were comparable with the non-drug scaffold. The SEM and MTT assay showed no toxic effect of ICG-001 to the proliferation of epithelial cells on the collagen/P(LLA-CL) scaffold with ICG-001. After treatment with culture medium released from the drug-delivering scaffold, the expression of Collagen type 1, 3 and fibronectin of fibroblasts could be inhibited significantly at the mRNA and protein levels. In the results of urethrography, urethral strictures and fistulas were found in the rabbits treated with non-ICG-001 delivering scaffolds, but all the rabbits treated with ICG-001-delivering scaffolds showed wide caliber in urethras. Histology results showed less collagen but more smooth muscle and thicker epithelium in urethras repaired with ICG-001 delivering scaffolds. Conclusion: After loading with the Wnt signal pathway inhibitor ICG-001, the Collagen/P(LLA-CL) scaffold could facilitate a decrease in the ECM deposition of fibroblasts. The ICG-001 delivering Collagen/P(LLA-CL) nanofibrous scaffold seeded with epithelial cells has the potential to be a promising substitute material for urethroplasty. Longer follow-up study in larger animals is needed in the future.
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Harrison RH, St-Pierre JP, Stevens MM. Tissue engineering and regenerative medicine: a year in review. TISSUE ENGINEERING PART B-REVIEWS 2014; 20:1-16. [PMID: 24410501 DOI: 10.1089/ten.teb.2013.0668] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
It is an exciting time to be involved in tissue engineering and regenerative medicine (TERM) research. Despite its relative youth, the field is expanding fast and breaking new ground in both the laboratory and clinically. In this "Year in Review," we highlight some of the high-impact advances in the field. Building upon last year's article, we have identified the recent "hot topics" and the key publications pertaining to these themes as well as ideas that have high potential to direct the field. Based on a modified methodology grounded on last year's approach, we have identified and summarized some of the most impactful publications in five main themes: (1) pluripotent stem cells: efforts and hurdles to translation, (2) tissue engineering: complex scaffolds and advanced materials, (3) directing the cell phenotype: growth factor and biomolecule presentation, (4) characterization: imaging and beyond, and (5) translation: preclinical to clinical. We have complemented our review of the research directions highlighted within these trend-setting studies with a discussion of additional articles along the same themes that have recently been published and have yet to surface in citation analyses. We conclude with a discussion of some really interesting studies that provide a glimpse of the high potential for innovation of TERM research.
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Affiliation(s)
- Rachael H Harrison
- 1 Department of Materials, Imperial College London , London, United Kingdom
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Nair BP, Vaikkath D, Mohan DS, Nair PD. Fabrication of a microvesicles-incorporated fibrous membrane for controlled delivery applications in tissue engineering. Biofabrication 2014; 6:045008. [DOI: 10.1088/1758-5082/6/4/045008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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19
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Hsu BB, Jamieson KS, Hagerman SR, Holler E, Ljubimova JY, Hammond PT. Ordered and kinetically discrete sequential protein release from biodegradable thin films. Angew Chem Int Ed Engl 2014; 53:8093-8. [PMID: 24938739 PMCID: PMC4387866 DOI: 10.1002/anie.201403702] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Indexed: 11/09/2022]
Abstract
Multidrug regimens can sometimes treat recalcitrant diseases when single-drug therapies fail. Recapitulating complex multidrug administration from controlled release films for localized delivery remains challenging because their release kinetics are frequently intertwined, and an initial burst release of each drug is usually uncontrollable. Kinetic control over protein release is demonstrated by cross-linking layer-by-layer films during the assembly process. We used biodegradable and naturally derived components and relied on copper-free click chemistry for bioorthogonal covalent cross-links throughout the film that entrap but do not modify the embedded protein. We found that this strategy restricted the interdiffusion of protein while maintaining its activity. By depositing a barrier layer and a second protein-containing layer atop this construct, we generated well-defined sequential protein release with minimal overlap that follows their spatial distribution within the film.
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Affiliation(s)
- Bryan B. Hsu
- Koch Institute for Integrative Cancer Research and the Institute for Soldier Nanotechnologies, Massachusetts Institute for Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 USA, Department of Chemistry, Massachusetts Institute for Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 USA
| | - Kelsey S. Jamieson
- Department of Chemical Engineering, Massachusetts Institute for Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 USA
| | - Samantha R. Hagerman
- Department of Chemical Engineering, Massachusetts Institute for Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 USA
| | - Eggehard Holler
- Nanomedicine Research Center; Department of Neurosurgery, Cedars Sinai Medical Center, 8700 Beverly Boulevard, Los Angeles, CA 90048 USA
| | - Julia Y. Ljubimova
- Nanomedicine Research Center; Department of Neurosurgery, Cedars Sinai Medical Center, 8700 Beverly Boulevard, Los Angeles, CA 90048 USA
| | - Paula T. Hammond
- Koch Institute for Integrative Cancer Research and the Institute for Soldier Nanotechnologies, Massachusetts Institute for Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 USA, Department of Chemical Engineering, Massachusetts Institute for Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 USA
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Ordered and Kinetically Discrete Sequential Protein Release from Biodegradable Thin Films. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403702] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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21
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Huang CL, Lee WL, Loo JS. Drug-eluting scaffolds for bone and cartilage regeneration. Drug Discov Today 2014; 19:714-24. [DOI: 10.1016/j.drudis.2013.11.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 10/16/2013] [Accepted: 11/06/2013] [Indexed: 12/19/2022]
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Lavielle N, Hébraud A, Schlatter G, Thöny-Meyer L, Rossi RM, Popa AM. Simultaneous electrospinning and electrospraying: a straightforward approach for fabricating hierarchically structured composite membranes. ACS APPLIED MATERIALS & INTERFACES 2013; 5:10090-10097. [PMID: 24099219 DOI: 10.1021/am402676m] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We present here for the first time a simple method for micropatterning nonwoven composite membranes. The approach is based on the simultaneous electrospraying of microparticles and electrospinning of nanofibers from different polymer solution feeds (polyethylene glycol and poly(D,L-lactide)) on a common support. The mechanism of self-organization between fibers and particles into hierarchical honeycomb-like structures, as well as the evolution of the later as a function of the thickness of the composite, is investigated. We demonstrate that aggregates of particles, leading to a nonuniform distribution of the electrostatic field near the collector, are necessary to form the self-organized composite. Furthermore, it is shown that the specific dimensions of the generated patterns can be controlled by tuning the flow rate of electrospraying. The obtained composite mat exhibits a multilevel porous structure, with pore sizes ranging from few up to several hundreds of micrometers. Finally, it is shown that the microparticles can be selectively leached, allowing the production of a monocomponent membrane and retaining the hierarchical organization of the nanofibers suitable for biomedical and filtration applications.
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Affiliation(s)
- Nicolas Lavielle
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé, ICPEES-UMR7515, Université de Strasbourg , CNRS, Institut Carnot MICA, Ecole Européenne de Chimie, Polymères et Matériaux, 25 rue Becquerel, 67087 Strasbourg, cedex 2, France
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Ingavle GC, Leach JK. Advancements in electrospinning of polymeric nanofibrous scaffolds for tissue engineering. TISSUE ENGINEERING PART B-REVIEWS 2013; 20:277-93. [PMID: 24004443 DOI: 10.1089/ten.teb.2013.0276] [Citation(s) in RCA: 128] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Polymeric nanofibers have potential as tissue engineering scaffolds, as they mimic the nanoscale properties and structural characteristics of native extracellular matrix (ECM). Nanofibers composed of natural and synthetic polymers, biomimetic composites, ceramics, and metals have been fabricated by electrospinning for various tissue engineering applications. The inherent advantages of electrospinning nanofibers include the generation of substrata with high surface area-to-volume ratios, the capacity to precisely control material and mechanical properties, and a tendency for cellular in-growth due to interconnectivity within the pores. Furthermore, the electrospinning process affords the opportunity to engineer scaffolds with micro- to nanoscale topography similar to the natural ECM. This review describes the fundamental aspects of the electrospinning process when applied to spinnable natural and synthetic polymers; particularly, those parameters that influence fiber geometry, morphology, mesh porosity, and scaffold mechanical properties. We describe cellular responses to fiber morphology achieved by varying processing parameters and highlight successful applications of electrospun nanofibrous scaffolds when used to tissue engineer bone, skin, and vascular grafts.
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Affiliation(s)
- Ganesh C Ingavle
- 1 Department of Biomedical Engineering, University of California Davis , Davis, California
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Tang G, Zhao Y, Yuan X. Preparation of fiber-microsphere scaffolds for loading bioactive substances in gradient amounts. ACTA ACUST UNITED AC 2013. [DOI: 10.1007/s11434-013-5974-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Zheng J, Xie S, Lin F, Hua G, Yu T, Reneker DH, Becker ML. 4-Dibenzocyclooctynol (DIBO) as an initiator for poly(ε-caprolactone): copper-free clickable polymer and nanofiber-based scaffolds. Polym Chem 2013. [DOI: 10.1039/c3py00153a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Mitra J, Tripathi G, Sharma A, Basu B. Scaffolds for bone tissue engineering: role of surface patterning on osteoblast response. RSC Adv 2013. [DOI: 10.1039/c3ra23315d] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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