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Brooks AK, Pradhan S, Yadavalli VK. Degradable Elastomeric Silk Biomaterial for Flexible Bioelectronics. ACS APPLIED BIO MATERIALS 2023; 6:4392-4402. [PMID: 37788457 DOI: 10.1021/acsabm.3c00593] [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] [Indexed: 10/05/2023]
Abstract
The integration of degradable and biomimetic approaches in material and device development can facilitate the next generation of sustainable (bio) electronics. The use of functional degradable materials presents exciting opportunities for applications in healthcare, soft robotics, energy, and electronics. These include conformability to curved surfaces, matching of stiffness of tissue, and the ability to withstand mechanical deformations. Nature-derived materials such as silk fibroin (SF) provide excellent biocompatibility, resorbability, and tunable properties toward such goals. However, fibroin alone lacks the required mechanical properties and durability for processing in biointegrated electronics and dry conditions. To overcome these limitations, we report on an elastomeric photocurable composite of silk fibroin and poly(dimethylsiloxane) (PDMS). Photofibroin (containing methacryl functionalities) is doped with photoPDMS (methacryloxypropyl-terminated poly(dimethylsiloxane)) to form an elastomeric photofibroin (ePF) composite. The elastomeric silk is photocurable, allowing for microfabrication using UV photolithography. It is suitable for circuits, strain-sensing devices, and biointegrated systems. The ePF exhibits flexibility in both wet and dry conditions, enhanced mechanical strength and long-term durability, and optical transparency. It is stable at high temperatures, compatible with electronic materials, and cytocompatible while being enzymatically degradable. This work therefore highlights a path toward combining natural and synthetic materials to achieve versatile properties and demonstrates the potential of silk fibroin composites in (bio) electronics, encapsulation, and packaging.
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Affiliation(s)
- Anne Katherine Brooks
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W Main Street, Richmond, Virginia 23284, United States
| | - Sayantan Pradhan
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W Main Street, Richmond, Virginia 23284, United States
| | - Vamsi K Yadavalli
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W Main Street, Richmond, Virginia 23284, United States
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2
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Madappura AP, Madduri S. A comprehensive review of silk-fibroin hydrogels for cell and drug delivery applications in tissue engineering and regenerative medicine. Comput Struct Biotechnol J 2023; 21:4868-4886. [PMID: 37860231 PMCID: PMC10583100 DOI: 10.1016/j.csbj.2023.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 10/07/2023] [Accepted: 10/08/2023] [Indexed: 10/21/2023] Open
Abstract
Hydrogel scaffolds hold great promise for developing novel treatment strategies in the field of regenerative medicine. Within this context, silk fibroin (SF) has proven to be a versatile material for a wide range of tissue engineering applications owing to its structural and functional properties. In the present review, we report on the design and fabrication of different forms of SF-based scaffolds for tissue regeneration applications, particularly for skin, bone, and neural tissues. In particular, SF hydrogels have emerged as delivery systems for a wide range of bio-actives. Given the growing interest in the field, this review has a primary focus on the fabrication, characterization, and properties of SF hydrogels. We also discuss their potential for the delivery of drugs, stem cells, genes, peptides, and growth factors, including future directions in the field of SF hydrogel scaffolds.
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Affiliation(s)
- Alakananda Parassini Madappura
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, 300044 Hsinchu, Taiwan, Republic of China
| | - Srinivas Madduri
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland
- Department of Surgery, University of Geneva, Geneva, Switzerland
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3
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Xu Q, Torres JE, Hakim M, Babiak PM, Pal P, Battistoni CM, Nguyen M, Panitch A, Solorio L, Liu JC. Collagen- and hyaluronic acid-based hydrogels and their biomedical applications. MATERIALS SCIENCE & ENGINEERING. R, REPORTS : A REVIEW JOURNAL 2021; 146:100641. [PMID: 34483486 PMCID: PMC8409465 DOI: 10.1016/j.mser.2021.100641] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Hydrogels have been widely investigated in biomedical fields due to their similar physical and biochemical properties to the extracellular matrix (ECM). Collagen and hyaluronic acid (HA) are the main components of the ECM in many tissues. As a result, hydrogels prepared from collagen and HA hold inherent advantages in mimicking the structure and function of the native ECM. Numerous studies have focused on the development of collagen and HA hydrogels and their biomedical applications. In this extensive review, we provide a summary and analysis of the sources, features, and modifications of collagen and HA. Specifically, we highlight the fabrication, properties, and potential biomedical applications as well as promising commercialization of hydrogels based on these two natural polymers.
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Affiliation(s)
- Qinghua Xu
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Jessica E. Torres
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Mazin Hakim
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
| | - Paulina M Babiak
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Pallabi Pal
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Carly M Battistoni
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Michael Nguyen
- Department of Biomedical Engineering, University of California Davis, Davis, California 95616, United States
| | - Alyssa Panitch
- Department of Biomedical Engineering, University of California Davis, Davis, California 95616, United States
| | - Luis Solorio
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
| | - Julie C. Liu
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
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4
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Hu K, Hu M, Xiao Y, Cui Y, Yan J, Yang G, Zhang F, Lin G, Yi H, Han L, Li L, Wei Y, Cui F. Preparation recombination human-like collagen/fibroin scaffold and promoting the cell compatibility with osteoblasts. J Biomed Mater Res A 2021; 109:346-353. [PMID: 32500940 DOI: 10.1002/jbm.a.37027] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 04/30/2020] [Accepted: 05/07/2020] [Indexed: 12/27/2022]
Abstract
On this basis, a novel recombinant human-like collagen (RHLC)/silk fibroin scaffold material with high porosity and controllable aperture was prepared. The compatibility of osteoblasts (OB) with the blends was tested in vitro. The morphology, adhesion and growth of scaffold cells were observed by scanning electron microscope and laser confocal microscope. Extensive measurements, including 3-[4, 5-dimethylthiazole-2-acyl]-2, 5-diphenyl tetrabrominate assays, intracellular total protein content, and alkaline phosphatase activity assays were performed after 7 days of culture. Survival and protein content increased in RHLC/fibroin stents. LSCM and SEM results confirmed that the cells grew better in the mixed scaffolds than in the pure silk scaffolds, and showed that the cells were easy to adhere and diffuse in the RHLC/silk scaffolds. RHLC/silk fibroin scaffolds are promising biomaterials for bone tissue engineering.
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Affiliation(s)
- Kun Hu
- Beijing Engineering Research Center of Printed Electronics, Institute of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing, China
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, China
| | - Miaomiao Hu
- Beijing Engineering Research Center of Printed Electronics, Institute of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing, China
| | - YongHao Xiao
- Beijing Engineering Research Center of Printed Electronics, Institute of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing, China
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Yuzhu Cui
- Beijing Engineering Research Center of Printed Electronics, Institute of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing, China
| | - Jia Yan
- Beijing Engineering Research Center of Printed Electronics, Institute of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing, China
| | - Guijuan Yang
- Beijing Engineering Research Center of Printed Electronics, Institute of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing, China
| | - Fan Zhang
- Department of Neurosurgery, The First Hospital of Fuzhou Medical Association, Fuzhou, China
| | - Guangqin Lin
- Technology Department, FuJian HuaRui Biological Technology Co., Ltd, Fuzhou, China
| | - Hanping Yi
- Technology Department, Tsinghua Redbud Innovation Institute Baodi Tianjin, Tianjin, China
| | - Lu Han
- Beijing Engineering Research Center of Printed Electronics, Institute of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing, China
| | - LuHai Li
- Beijing Engineering Research Center of Printed Electronics, Institute of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing, China
| | - Yen Wei
- Department of Chemistry and Tsinghua Center for Frontier Polymer Research, Tsinghua University, Beijing, China
| | - Fuzhai Cui
- School of Materials Science and Engineering, Tsinghua University, Beijing, China
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5
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Comprehensive Review of Hybrid Collagen and Silk Fibroin for Cutaneous Wound Healing. MATERIALS 2020; 13:ma13143097. [PMID: 32664418 PMCID: PMC7411886 DOI: 10.3390/ma13143097] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/29/2020] [Accepted: 06/30/2020] [Indexed: 02/06/2023]
Abstract
The use of hybridisation strategy in biomaterials technology provides a powerful synergistic effect as a functional matrix. Silk fibroin (SF) has been widely used for drug delivery, and collagen (Col) resembles the extracellular matrix (ECM). This systematic review was performed to scrutinise the outcome of hybrid Col and SF for cutaneous wound healing. This paper reviewed the progress of related research based on in vitro and in vivo studies and the influence of the physicochemical properties of the hybrid in wound healing. The results indicated the positive outcome of hybridising Col and SF for cutaneous wound healing. The hybridisation of these biomaterials exhibits an excellent moisturising property, perfectly interconnected structure, excellent water absorption and retention capacity, an acceptable range of biodegradability, and synergistic effects in cell viability. The in vitro and in vivo studies clearly showed a promising outcome in the acceleration of cutaneous wound healing using an SF and Col hybrid scaffold. The review of this study can be used to design an appropriate hybrid scaffold for cutaneous wound healing. Therefore, this systematic review recapitulated that the hybridisation of Col and SF promoted rapid cutaneous healing through immediate wound closure and reepithelisation, with no sign of adverse events. This paper concludes on the need for further investigations of the hybrid SF and Col in the future to ensure that the hybrid biomaterials are well-suited for human skin.
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Saleem M, Rasheed S, Yougen C. Silk fibroin/hydroxyapatite scaffold: a highly compatible material for bone regeneration. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2020; 21:242-266. [PMID: 32489483 PMCID: PMC7241470 DOI: 10.1080/14686996.2020.1748520] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 03/25/2020] [Accepted: 03/25/2020] [Indexed: 05/06/2023]
Abstract
In recent years remarkable efforts have been made to produce artificial bone through tissue engineering techniques. Silk fibroin (SF) and hydroxyapatite (HA) have been used in bone tissue regeneration as biomaterials due to mechanical properties of SF and biocompatibility of HA. There has been growing interest in developing SF/HA composites to reduce bone defects. In this regard, several attempts have been made to study the biocompatibility and osteoconductive properties of this material. This article overviews the recent advance from last few decades in terms of the preparative methods and application of SF/HA in bone regeneration. Its first part is related to SF that presents the most common sources, preparation methods and comparison of SF with other biomaterials. The second part illustrates the importance of HA by providing information about its production and properties. The third part presents comparative studies of SF/HA composites with different concentrations of HA along with methods of preparation of composites and their applications.
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Affiliation(s)
- Muhammad Saleem
- Institute for Advanced Study, Shenzhen University, Nanshan District, Shenzhen, Guangdong, 518060, China
- Department of Optoelectronic Science and Technology, 518060, Shenzhen University, P.R China
- Department of Chemistry, University of Kotli, AzadJammu and Kashmir
| | - Sidra Rasheed
- Department of Chemistry, University of Kotli, AzadJammu and Kashmir
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS Institute of Information Technology, Defence Road, Off. Raiwind Road, Lahore, 54000, Pakistan
| | - Chen Yougen
- Institute for Advanced Study, Shenzhen University, Nanshan District, Shenzhen, Guangdong, 518060, China
- Department of Optoelectronic Science and Technology, 518060, Shenzhen University, P.R China
- CONTACT Chen Yougen Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong518060, China
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7
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Davison-Kotler E, Marshall WS, García-Gareta E. Sources of Collagen for Biomaterials in Skin Wound Healing. Bioengineering (Basel) 2019; 6:E56. [PMID: 31261996 PMCID: PMC6783949 DOI: 10.3390/bioengineering6030056] [Citation(s) in RCA: 133] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 06/25/2019] [Accepted: 06/26/2019] [Indexed: 01/09/2023] Open
Abstract
Collagen is the most frequently used protein in the fields of biomaterials and regenerative medicine. Within the skin, collagen type I and III are the most abundant, while collagen type VII is associated with pathologies of the dermal-epidermal junction. The focus of this review is mainly collagens I and III, with a brief overview of collagen VII. Currently, the majority of collagen is extracted from animal sources; however, animal-derived collagen has a number of shortcomings, including immunogenicity, batch-to-batch variation, and pathogenic contamination. Recombinant collagen is a potential solution to the aforementioned issues, although production of correctly post-translationally modified recombinant human collagen has not yet been performed at industrial scale. This review provides an overview of current collagen sources, associated shortcomings, and potential resolutions. Recombinant expression systems are discussed, as well as the issues associated with each method of expression.
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Affiliation(s)
- Evan Davison-Kotler
- Biology Department, St. Francis Xavier University, Antigonish, NS B2G 2W5, Canada
- Regenerative Biomaterials Group, The RAFT Institute, Mount Vernon Hospital, Northwood HA6 2RN, UK
| | - William S Marshall
- Biology Department, St. Francis Xavier University, Antigonish, NS B2G 2W5, Canada
| | - Elena García-Gareta
- Regenerative Biomaterials Group, The RAFT Institute, Mount Vernon Hospital, Northwood HA6 2RN, UK.
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8
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Wang J, Zhang Y, Jin N, Mao C, Yang M. Protein-Induced Gold Nanoparticle Assembly for Improving the Photothermal Effect in Cancer Therapy. ACS APPLIED MATERIALS & INTERFACES 2019; 11:11136-11143. [PMID: 30869510 DOI: 10.1021/acsami.8b21488] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Gold nanoparticles (AuNPs) are promising photothermal agents for cancer therapy. However, the absorption of spherical AuNPs is weak in the desired tissue-penetrating near-infrared (NIR) window, resulting in low photothermal efficiency within this window. Here, we show that fibrous nanostructures assembled from spherical AuNPs since the templating effect of silk fibroin (SF) could red-shift the optical absorption to NIR and thus present improved photothermal efficiency within the NIR window. Specifically, negatively charged SF, a protein derived from Bombyx mori, was assembled into nanofibers due to the interaction with the positively charged AuNPs and concomitantly templated the AuNPs into fibrous nanostructures. The resultant AuNPs/SF nanofibers presented higher NIR light absorption at 808 nm and higher photothermal efficiency under 808 nm NIR irradiation than nonassembled AuNPs. In vitro and in vivo analyses proved that AuNPs/SF nanofibers could efficiently kill breast cancer cells and destruct breast cancer tumor tissues under one-time NIR irradiation for 6 min by photothermal therapy (PTT) but nonassembled AuNPs could not. This work suggests that the self-assembled AuNPs/SF nanofibers are effective photosensitizers for PTT, and biotemplated assembly of photothermal agents into highly ordered nanostructures is a promising approach to increasing the PTT efficiency.
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Affiliation(s)
- Jie Wang
- Institute of Applied Bioresource Research, College of Animal Science , Zhejiang University , Yuhangtang Road 866 , Hangzhou , 310058 Zhejiang , China
| | - Ying Zhang
- Institute of Applied Bioresource Research, College of Animal Science , Zhejiang University , Yuhangtang Road 866 , Hangzhou , 310058 Zhejiang , China
| | - Na Jin
- Institute of Applied Bioresource Research, College of Animal Science , Zhejiang University , Yuhangtang Road 866 , Hangzhou , 310058 Zhejiang , China
| | - Chuanbin Mao
- Department of Chemistry & Biochemistry, Stephenson Life Science Research Center, Institute for Biomedical Engineering, Science and Technology , University of Oklahoma , 101 Stephenson Parkway , Norman , Oklahoma 73019-5251 , United States
- School of Materials Science and Engineering , Zhejiang University , Hangzhou , Zhejiang 310027 , China
| | - Mingying Yang
- Institute of Applied Bioresource Research, College of Animal Science , Zhejiang University , Yuhangtang Road 866 , Hangzhou , 310058 Zhejiang , China
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Galateanu B, Hudita A, Zaharia C, Bunea MC, Vasile E, Buga MR, Costache M. Silk-Based Hydrogels for Biomedical Applications. POLYMERS AND POLYMERIC COMPOSITES: A REFERENCE SERIES 2019. [DOI: 10.1007/978-3-319-77830-3_59] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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10
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Leem JW, Allcca AEL, Chen J, Kim SW, Kim KY, Choi KH, Chen YP, Kim SR, Kim YL. Visible light biophotosensors using biliverdin from Antheraea yamamai. OPTICS EXPRESS 2018; 26:31817-31828. [PMID: 30650761 DOI: 10.1364/oe.26.031817] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 11/05/2018] [Indexed: 06/09/2023]
Abstract
We report an endogenous photoelectric biomolecule and demonstrate that such a biomolecule can be used to detect visible light. We identify the green pigment abundantly present in natural silk cocoons of Antheraea yamamai (Japanese oak silkmoth) as biliverdin, using mass spectroscopy and optical spectroscopy. Biliverdin extracted from the green silk cocoons generates photocurrent upon light illumination with distinct colors. We further characterize the basic performance, responsiveness, and stability of the biliverdin-based biophotosensors at a photovoltaic device level using blue, green, orange, and red light illumination. Biliverdin could potentially serve as an optoelectric biomolecule toward the development of next-generation implantable photosensors and artificial photoreceptors.
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11
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Ma D, Wang Y, Dai W. Silk fibroin-based biomaterials for musculoskeletal tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 89:456-469. [DOI: 10.1016/j.msec.2018.04.062] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 02/22/2018] [Accepted: 04/19/2018] [Indexed: 12/16/2022]
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Yan J, Hu K, Xiao Y, Zhang F, Han L, Pan S, Li L, Wei Y, Cui F. Preparation of recombinant human-like collagen/fibroin scaffold and its promoting effect on vascular cells biocompatibility. J BIOACT COMPAT POL 2018. [DOI: 10.1177/0883911518769680] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A novel recombinant human-like collagen/fibroin scaffold has been prepared previously, which has high porosity, controllable pore size, and much better mechanical properties than the reported fibroin-based scaffold. In this research, the cell responses of vascular smooth muscle cells to this blend scaffold were examined in vitro. Cell morphology, adherence, and growth in scaffolds were observed by scanning electron microscopy, laser scanning confocal microscopy after staining of the cells with propidium iodide at 1, 3, 5, and 7 days, respectively. A wide range of measurements, including 3-[4,5–dimethylthiazol-2-yl]-2, 5-diphenyl tetrasodium bromide assay, and total intracellular protein content at the end of 7 days culture, were conducted. An increase of viability and protein content of vascular smooth muscle cells cultured in recombinant human-like collagen/fibroin scaffold was found. The laser scanning confocal microscopy and scanning electron microscopy results confirm that the cells readily adhered and proliferation in the blend than in fibroin scaffold, and indicate a better adhesion process. The positive effects were especially significant for vascular smooth muscle cells. The recombinant human-like collagen/fibroin scaffold could be a promising biomaterial for vascular tissue engineering.
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Affiliation(s)
- Jia Yan
- Institute of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing, China
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing, China
| | - Kun Hu
- Institute of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing, China
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing, China
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, China
| | - YongHao Xiao
- Institute of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing, China
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing, China
| | - Fan Zhang
- The First Hospital of Fuzhou Medical Association, Fuzhou, China
| | - Lu Han
- Institute of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing, China
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing, China
| | - Shun Pan
- Institute of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing, China
| | - LuHai Li
- Institute of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing, China
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing, China
| | - Yen Wei
- Institute of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing, China
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing, China
- Department of Chemistry and Tsinghua Center for Frontier Polymer Research, Tsinghua University, Beijing, China
| | - FuZhai Cui
- School of Materials Science and Engineering, Tsinghua University, Beijing, China
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13
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Janani G, Nandi SK, Mandal BB. Functional hepatocyte clusters on bioactive blend silk matrices towards generating bioartificial liver constructs. Acta Biomater 2018; 67:167-182. [PMID: 29223705 DOI: 10.1016/j.actbio.2017.11.053] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 11/10/2017] [Accepted: 11/29/2017] [Indexed: 12/17/2022]
Abstract
The creation of in vitro functional hepatic tissue simulating micro-environmental niche of native liver is a keen area of research due to its demand in bioartificial liver (BAL) and cell-based tissue engineering. Here, we investigated the potential of novel blend (BA) silk scaffold fabricated by blending mulberry (Bombyx mori, BM) silk fibroin with cell adhesion motif (RGD) rich non-mulberry (Antheraea assamensis, AA) silk fibroin, in generating a functional liver construct. Three-dimensional (3D) porous silk scaffolds (BM, AA and BA) were physico-chemically characterized and functionally evaluated using human hepatocarcinoma cells (HepG2) and primary neonatal rat hepatocytes. The growth and distribution of hepatocytes within the scaffolds were tracked by FESEM, alamar blue proliferation assay and live/dead staining. Hemocompatible BA scaffolds supported the formation of high density hepatocyte clusters, facilitating cell-matrix and cell-cell interactions. Blend scaffolds evinced enhanced liver-specific functions of cultured hepatocytes in terms of albumin synthesis, urea synthesis and cytochrome P450 enzyme activity over 21 days. Subcutaneous implantation of scaffolds demonstrated minimal macrophage infiltration in blend scaffolds. These findings substantiate that the integral property of blend (BA) scaffold offers a befitting environment by influencing spheroidal growth of hepatocytes with enhanced biological activity. Collectively, the present study provides a new 3D bio-matrix niche for growing functional liver cells that would have future prospects in BAL as well as regenerative medicine. STATEMENT OF SIGNIFICANCE An end stage liver disease called cirrhosis perturbs the self-healing ability and physiological functions of liver. Due to the scarcity of healthy donors, a functional in vitro hepatic construct retaining the liver-specific functions is in great demand for its prospects in bioartificial liver (BAL) and cell-based tissue engineering. Physicochemical attributes of a matrix influence the behavior of cultured hepatocytes in terms of attachment, morphology and functionality. Mulberry and non-mulberry silk fibroin presents unique amino acid sequence with difference in hydrophobicity and crystallinity. Considering this, the present study focuses on the development of a suitable three-dimensional (3D) bioactive matrix incorporating both mulberry silk fibroin and cell adhesion motif (RGD) rich non-mulberry silk fibroin. Porous silk blend scaffolds facilitated the formation of hepatocyte clusters with enhanced liver-specific functions emphasizing both cell-cell and cell-matrix interactions. Hemocompatibility and integral property of blend scaffolds offers a biological niche for seeding functional liver cells that would have future prospects in biohybrid devices.
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Affiliation(s)
- G Janani
- Biomaterials and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Samit K Nandi
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal and Fishery Sciences, Kolkata 700037, West Bengal, India
| | - Biman B Mandal
- Biomaterials and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
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14
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Phase Behaviour and Miscibility Studies of Collagen/Silk Fibroin Macromolecular System in Dilute Solutions and Solid State. Molecules 2017; 22:molecules22081368. [PMID: 28820488 PMCID: PMC6152308 DOI: 10.3390/molecules22081368] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 08/16/2017] [Indexed: 12/29/2022] Open
Abstract
Miscibility is an important issue in biopolymer blends for analysis of the behavior of polymer pairs through the detection of phase separation and improvement of the mechanical and physical properties of the blend. This study presents the formulation of a stable and one-phase mixture of collagen and regenerated silk fibroin (RSF), with the highest miscibility ratio between these two macromolecules, through inducing electrostatic interactions, using salt ions. For this aim, a ternary phase diagram was experimentally built for the mixtures, based on observations of phase behavior of blend solutions with various ratios. The miscibility behavior of the blend solutions in the miscible zones of the phase diagram was confirmed quantitatively by viscosimetric measurements. Assessing the effects of biopolymer mixing ratio and salt ions, before and after dialysis of blend solutions, revealed the importance of ion-specific interactions in the formation of coacervate-based materials containing collagen and RSF blends that can be used in pharmaceutical, drug delivery, and biomedical applications. Moreover, the conformational change of silk fibroin from random coil to beta sheet, in solution and in the final solid films, was detected by circular dichroism (CD) and Fourier transform infrared spectroscopy (FTIR), respectively. Scanning electron microscopy (SEM) exhibited alterations of surface morphology for the biocomposite films with different ratios. Surface contact angle measurement illustrated different hydrophobic properties for the blended film surfaces. Differential scanning calorimetry (DSC) showed that the formation of the beta sheet structure of silk fibroin enhances the thermal stability of the final blend films. Therefore, the novel method presented in this study resulted in the formation of biocomposite films whose physico-chemical properties can be tuned by silk fibroin conformational changes by applying different component mixing ratios.
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Sayin E, Rashid RH, Rodríguez-Cabello JC, Elsheikh A, Baran ET, Hasirci V. Human adipose derived stem cells are superior to human osteoblasts (HOB) in bone tissue engineering on a collagen-fibroin-ELR blend. Bioact Mater 2017; 2:71-81. [PMID: 29744414 PMCID: PMC5935045 DOI: 10.1016/j.bioactmat.2017.04.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 04/10/2017] [Accepted: 04/12/2017] [Indexed: 12/11/2022] Open
Abstract
The ultrastructure of the bone provides a unique mechanical strength against compressive, torsional and tensional stresses. An elastin-like recombinamer (ELR) with a nucleation sequence for hydroxyapatite was incorporated into films prepared from a collagen - silk fibroin blend carrying microchannel patterns to stimulate anisotropic osteogenesis. SEM and fluorescence microscopy showed the alignment of adipose-derived stem cells (ADSCs) and the human osteoblasts (HOBs) on the ridges and in the grooves of microchannel patterned collagen-fibroin-ELR blend films. The Young's modulus and the ultimate tensile strength (UTS) of untreated films were 0.58 ± 0.13 MPa and 0.18 ± 0.05 MPa, respectively. After 28 days of cell culture, ADSC seeded film had a Young's modulus of 1.21 ± 0.42 MPa and UTS of 0.32 ± 0.15 MPa which were about 3 fold higher than HOB seeded films. The difference in Young's modulus was statistically significant (p: 0.02). ADSCs attached, proliferated and mineralized better than the HOBs. In the light of these results, ADSCs served as a better cell source than HOBs for bone tissue engineering of collagen-fibroin-ELR based constructs used in this study. We have thus shown the enhancement in the tensile mechanical properties of the bone tissue engineered scaffolds by using ADSCs.
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Affiliation(s)
- Esen Sayin
- METU, Department of Biotechnology, Ankara, Turkey.,BIOMATEN, METU Center of Excellence in Biomaterials and Tissue Engineering, Dumlupinar Blvd No: 1, 06800 Ankara, Turkey
| | - Rosti Hama Rashid
- University of Liverpool, School of Engineering, L69 3GH Liverpool, UK
| | - José Carlos Rodríguez-Cabello
- BIOFORGE, CIBER-BBN, Campus "Miguel Delibes" Edificio LUCIA, Universidad de Valladolid, Paseo Belén 19, 47011 Valladolid, Spain
| | - Ahmed Elsheikh
- University of Liverpool, School of Engineering, L69 3GH Liverpool, UK
| | - Erkan Türker Baran
- BIOMATEN, METU Center of Excellence in Biomaterials and Tissue Engineering, Dumlupinar Blvd No: 1, 06800 Ankara, Turkey
| | - Vasif Hasirci
- METU, Department of Biotechnology, Ankara, Turkey.,BIOMATEN, METU Center of Excellence in Biomaterials and Tissue Engineering, Dumlupinar Blvd No: 1, 06800 Ankara, Turkey.,METU, Department of Biological Sciences, Ankara, 06800, Turkey
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16
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Pereira AM, Machado R, da Costa A, Ribeiro A, Collins T, Gomes AC, Leonor IB, Kaplan DL, Reis RL, Casal M. Silk-based biomaterials functionalized with fibronectin type II promotes cell adhesion. Acta Biomater 2017; 47:50-59. [PMID: 27713086 DOI: 10.1016/j.actbio.2016.10.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 09/20/2016] [Accepted: 10/02/2016] [Indexed: 12/13/2022]
Abstract
The objective of this work was to exploit the fibronectin type II (FNII) module from human matrix metalloproteinase-2 as a functional domain for the development of silk-based biopolymer blends that display enhanced cell adhesion properties. The DNA sequence of spider dragline silk protein (6mer) was genetically fused with the FNII coding sequence and expressed in Escherichia coli. The chimeric protein 6mer+FNII was purified by non-chromatographic methods. Films prepared from 6mer+FNII by solvent casting promoted only limited cell adhesion of human skin fibroblasts. However, the performance of the material in terms of cell adhesion was significantly improved when 6mer+FNII was combined with a silk-elastin-like protein in a concentration-dependent behavior. With this work we describe a novel class of biopolymer that promote cell adhesion and potentially useful as biomaterials for tissue engineering and regenerative medicine. STATEMENT OF SIGNIFICANCE This work reports the development of biocompatible silk-based composites with enhanced cell adhesion properties suitable for biomedical applications in regenerative medicine. The biocomposites were produced by combining a genetically engineered silk-elastin-like protein with a genetically engineered spider-silk-based polypeptide carrying the three domains of the fibronectin type II module from human metalloproteinase-2. These composites were processed into free-standing films by solvent casting and characterized for their biological behavior. To our knowledge this is the first report of the exploitation of all three FNII domains as a functional domain for the development of bioinspired materials with improved biological performance. The present study highlights the potential of using genetically engineered protein-based composites as a platform for the development of new bioinspired biomaterials.
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Morin A, Alam P. Comparing the properties of Bombyx mori silk cocoons against sericin-fibroin regummed biocomposite sheets. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 65:215-20. [DOI: 10.1016/j.msec.2016.04.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 03/29/2016] [Accepted: 04/06/2016] [Indexed: 11/16/2022]
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18
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Hu K, Lv Q, Cui F, Xu L, Jiao Y, Wang Y, Feng Q, Wang H, Huang L. A Novel Poly(L-lactide) (PLLA)/Fibroin Hybrid Scaffold to Promote Hepatocyte Viability and Decrease Macrophage Responses. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911507079893] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The purpose of this study was to evaluate the hepatocellular compatibility and assess the inflammatory response of a novel hybrid scaffold of poly(L-lactide) (PLLA) and fibroin. The hybrid scaffold was obtained by freezing and lyophilizing a blend of fibroin microspheres and PLLA solution. FTIR and scanning electron microscopy (SEM) analysis indicated that fibroin microspheres were on the surface of the hybrid scaffold. Compared to the PLLA scaffold, SEM and laser scanning confocal microscope (LSCM) analyses showed that the human hepatocellular carcinoma HepG2 cells had spread and proliferated much more in the hybrid scaffold. The MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide) assays indicated a greater number of cells in this hybrid scaffold. Furthermore, a mouse RAW264.7 macrophages cell line was utilized to characterize and compare the mRNA profiles of TNF-alpha using real time-polymerase chain reaction (RT-PCR). The inflammatory response of the macrophages grown in the PLLA/fibroin scaffold rapidly declined compared to those in the PLLA scaffold and reached the level of cells grown in Dulbecco's Modified Eagle Medium (DMEM). The hepatocellular compatibility and lower level of inflammatory response makes the PLLA/fibroin scaffold a promising candidate for hepatic tissue engineering.
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Affiliation(s)
- K. Hu
- Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Q. Lv
- Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - F.Z. Cui
- Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China,
| | - L. Xu
- Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Y.P. Jiao
- Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Y. Wang
- Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Q.L. Feng
- Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - H.L. Wang
- Beijing Institute of Biotechnology, Beijing 100071, People's Republic of China
| | - L.Y. Huang
- Beijing Institute of Biotechnology, Beijing 100071, People's Republic of China
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19
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Peng L, Cheng XR, Wang JW, Xu DX, Wang G. Preparation and Evaluation of Porous Chitosan/Collagen Scaffolds for Periodontal Tissue Engineering. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911506065100] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The wide array of periodontal tissue engineering applications has demonstrated the need for appropriate biodegradable materials. Porous chitosan/collagen – a natural derivative composite – scaffolds could be a candidate. In this study, differently proportioned porous chitosan/collagen scaffolds were prepared by controlled freezing and lyophylization of corresponding composite solutions. The scaffolds were investigated via aperture, porosity, swelling behavior and cell-mediated contraction testing. The morphology and distribution of human periodontal ligament cells (PDLCs) on these threedimensional scaffolds were investigated by SEM and CLSM. Compared to a single component scaffold, the addition of collagen to chitosan decreased the mean aperture, increased the swelling ability and the addition of chitosan to collagen decreased the contraction. The adherence and growth of PDLCs cultured within the chitosan/collagen scaffolds were better than on single chitosan or collagen scaffolds. It appears that chitosan/collagen composites are promising scaffold materials for periodontal tissue engineering.
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Affiliation(s)
- Lin Peng
- Key Lab of Oral Biomedical Engineering (Wuhan University), Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079, PR China
| | - Xiang Rong Cheng
- Key Lab of Oral Biomedical Engineering (Wuhan University), Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079, PR China
| | | | | | - Ge Wang
- Key Lab of Oral Biomedical Engineering (Wuhan University), Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079, PR China
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20
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Zhao D, Wang Y, Xu R, Wu G, Zhang L, Yu D, Cui F, Chen D, Tian W. Composition-graded Films of Fluoroapatite/PHB Fabricated via Electrospinning for Tissue Engineering. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911507079802] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Composition-graded films (CGF) of fluoroapatite (FAP) and poly(3-hydroxybutyrate- co-4-hydroxybutyrate) (PHB) were prepared via electrospinning solutions of FAP and PHB using a gradient composition of CGF. Thermal properties, mechanical properties and surface morphology of the films were investigated. Designed thermal and mechanical properties obtained by precise control of the composition gradient of the FAP/PHB CGF. The introduction of FAP in pure PHB film significantly changed the mechanical properties, such as tensile strength and extension rate of the pure PHB. Mouse fibroblast cells (L-929) were cultured on FAP/PHB uniform-films; the MTT test and cell morphology analysis indicate good biocompatibility of the modified CGF. This new method of processing makes CGF a potential candidate as an electrospinning scaffold material for tissue engineering.
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Affiliation(s)
- D.M. Zhao
- The Key laboratory of Beijing City on Preparation and Processing of Novel Polymer, BeijingUniversity of Chemical Technology, Beijing 100029, China
| | - Y.X. Wang
- The Key laboratory of Beijing City on Preparation and Processing of Novel Polymer, BeijingUniversity of Chemical Technology, Beijing 100029, China
| | - R.W. Xu
- The Key laboratory of Beijing City on Preparation and Processing of Novel Polymer, BeijingUniversity of Chemical Technology, Beijing 100029, China
| | - G. Wu
- The Key laboratory of Beijing City on Preparation and Processing of Novel Polymer, BeijingUniversity of Chemical Technology, Beijing 100029, China
| | - L.Q. Zhang
- The Key laboratory of Beijing City on Preparation and Processing of Novel Polymer, BeijingUniversity of Chemical Technology, Beijing 100029, China
| | - D.S. Yu
- The Key laboratory of Beijing City on Preparation and Processing of Novel Polymer, BeijingUniversity of Chemical Technology, Beijing 100029, China,
| | - F.Z. Cui
- Biomaterials Laboratory, Department of Materials Science & Engineering, Tsinghua University, Beijing 100084, China
| | - D.F. Chen
- Laboratory of Tissue Engineering of Beijing Research Institute of Traumatology and Orthopaedics, Beijing 100035, China,
| | - W. Tian
- Laboratory of Tissue Engineering of Beijing Research Institute of Traumatology and Orthopaedics, Beijing 100035, China
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21
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Wei Xu, Xiaohong Wang, Yongnian Yan, Wei Zheng, Zhuo Xiong, Feng Lin, Rendong Wu, Renji Zhang. Rapid Prototyping Three-Dimensional Cell/Gelatin/Fibrinogen Constructs for Medical Regeneration. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911507079451] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
There is a need for rapid fabrication of tissue or organs with well-defined structures and functions in regenerative medicine. Two patterns of cell/matrix constructs containing hepatic cells, gelatin and fibrinogen were successfully created by automated rapid prototyping techniques and stabilized with thrombin. No apparent cell damage was found during the process. Mechanical characterization demonstrated that a 1:1 ratio gelatin/fibrin mixture had the greatest elasticity modulus and compressive strength. Microscopic and histological observations showed that hepatic cells were embedded in the gelatin/fibrinogen matrix and were proliferating. Immunostaining and biochemical analysis indicated that the embedded hepatocytes secreted albumin. Fibrin appears to be a favorable component for a gelatin based cell assembly matrix in that it is bioresorbable, easily manipulated, and supports in vitro cell functions.
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Affiliation(s)
- Wei Xu
- Key Laboratory for Advanced Manufacturing by Materials Processing Technology & Center of Organ Manufacturing, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, P.R. China, Institute of Life Science & Medicine, Tsinghua University, Beijing 100084, P.R. China, wangxiaohong @tsinghua.edu.cn
| | - Xiaohong Wang
- Key Laboratory for Advanced Manufacturing by Materials Processing Technology & Center of Organ Manufacturing, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, P.R. China, Institute of Life Science & Medicine, Tsinghua University, Beijing 100084, P.R. China
| | - Yongnian Yan
- Key Laboratory for Advanced Manufacturing by Materials Processing Technology & Center of Organ Manufacturing, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, P.R. China, Institute of Life Science & Medicine, Tsinghua University, Beijing 100084, P.R. China
| | - Wei Zheng
- Key Laboratory for Advanced Manufacturing by Materials Processing Technology & Center of Organ Manufacturing, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, P.R. China, Institute of Life Science & Medicine, Tsinghua University, Beijing 100084, P.R. China
| | - Zhuo Xiong
- Key Laboratory for Advanced Manufacturing by Materials Processing Technology & Center of Organ Manufacturing, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, P.R. China, Institute of Life Science & Medicine, Tsinghua University, Beijing 100084, P.R. China
| | - Feng Lin
- Key Laboratory for Advanced Manufacturing by Materials Processing Technology & Center of Organ Manufacturing, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, P.R. China, Institute of Life Science & Medicine, Tsinghua University, Beijing 100084, P.R. China
| | - Rendong Wu
- Key Laboratory for Advanced Manufacturing by Materials Processing Technology & Center of Organ Manufacturing, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, P.R. China, Institute of Life Science & Medicine, Tsinghua University, Beijing 100084, P.R. China
| | - Renji Zhang
- Key Laboratory for Advanced Manufacturing by Materials Processing Technology & Center of Organ Manufacturing, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, P.R. China, Institute of Life Science & Medicine, Tsinghua University, Beijing 100084, P.R. China
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22
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Bioengineered silk scaffolds in 3D tissue modeling with focus on mammary tissues. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 59:1168-1180. [DOI: 10.1016/j.msec.2015.10.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 09/04/2015] [Accepted: 10/02/2015] [Indexed: 02/07/2023]
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23
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Akturk O, Kismet K, Yasti AC, Kuru S, Duymus ME, Kaya F, Caydere M, Hucumenoglu S, Keskin D. Wet electrospun silk fibroin/gold nanoparticle 3D matrices for wound healing applications. RSC Adv 2016. [DOI: 10.1039/c5ra24225h] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The effectiveness of a silk fibroin/gold nanoparticle 3D nanofibrous matrix on a rat model of full-thickness dermal wound healing was investigated.
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Affiliation(s)
- Omer Akturk
- Department of Engineering Sciences
- Middle East Technical University
- Ankara
- Turkey
| | - Kemal Kismet
- Department of General Surgery
- Ankara Training and Research Hospital
- Ankara
- Turkey
| | - Ahmet C. Yasti
- Department of General Surgery
- Ankara Numune Hospital
- Ankara
- Turkey
- Department of General Surgery
| | - Serdar Kuru
- Department of General Surgery
- Ankara Training and Research Hospital
- Ankara
- Turkey
| | - Mehmet E. Duymus
- Department of General Surgery
- Ankara Training and Research Hospital
- Ankara
- Turkey
| | - Feridun Kaya
- Department of Gastroenterology Surgery
- Ankara Turkiye Yuksek Ihtisas Training and Research Hospital
- Ankara
- Turkey
| | - Muzaffer Caydere
- Department of Pathology
- Ankara Training and Research Hospital
- Ankara
- Turkey
| | - Sema Hucumenoglu
- Department of Pathology
- Ankara Training and Research Hospital
- Ankara
- Turkey
| | - Dilek Keskin
- Department of Engineering Sciences
- Middle East Technical University
- Ankara
- Turkey
- BIOMATEN
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24
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Shalumon KT, Lai GJ, Chen CH, Chen JP. Modulation of Bone-Specific Tissue Regeneration by Incorporating Bone Morphogenetic Protein and Controlling the Shell Thickness of Silk Fibroin/Chitosan/Nanohydroxyapatite Core-Shell Nanofibrous Membranes. ACS APPLIED MATERIALS & INTERFACES 2015; 7:21170-21181. [PMID: 26355766 DOI: 10.1021/acsami.5b04962] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The presence of both osteoconductive and osteoinductive factors is important in promoting stem cell differentiation toward the osteogenic lineage. In this study, we prepared silk fibroin/chitosan/nanohydroxyapatite/bone morphogenetic protein-2 (SF/CS/nHAP/BMP-2, SCHB2) nanofibrous membranes (NFMs) by incorporating BMP-2 in the core and SF/CS/nHAP as the shell layer of a nanofiber with two different shell thicknesses (SCHB2-thick and SCHB-thin). The physicochemical properties of SCHB2 membranes were characterized and compared with those of SF/CS and SF/CS/nHAP NFMs. When tested in release studies, the release rate of BMP-2 and the concentration of BMP-2 in the release medium were higher for SCHB2-thin NFMs because of reduced shell thickness. The BMP-2 released from the nanofiber retained its osteoinductive activity toward human-bone-marrow-derived mesenchymal stem cells (hMSCs). Compared with SF/CS and SF/CS/nHAP NFMs, the incorporation of BMP-2-promoted osteogenic differentiation of hMSCs and the SCHB-thin NFM is the best scaffold during in vitro cell culture. Gene expression analysis by real-time quantitative polymerase chain reaction detected the evolution of both early and late marker genes of bone formation. The relative mRNA expression is in accordance with the effect of BMP-2 incorporation and shell thickness, while the same was reconfirmed through the quantification of bone marker protein osteocalcin. In vivo experiments were carried out by subcutaneously implanting hMSC-seeded SCHB2-thin NFMs and acellular controls on the back sides of nude mice. Immunohistochemical and histological staining confirmed ectopic bone formation and osteogenesis of hMSCs in SCHB2-thin NFMs. In conclusion, the SCHB2-thin NFM could be suggested as a promising scaffold for bone tissue engineering.
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Affiliation(s)
- K T Shalumon
- Department of Chemical and Materials Engineering, Chang Gung University , Kwei-San, Taoyuan 333, Taiwan Republic of China
| | - Guo-Jyun Lai
- Department of Chemical and Materials Engineering, Chang Gung University , Kwei-San, Taoyuan 333, Taiwan Republic of China
| | - Chih-Hao Chen
- Department of Chemical and Materials Engineering, Chang Gung University , Kwei-San, Taoyuan 333, Taiwan Republic of China
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung University, College of Medicine , Kwei-San, Taoyuan 333, Taiwan Republic of China
| | - Jyh-Ping Chen
- Department of Chemical and Materials Engineering, Chang Gung University , Kwei-San, Taoyuan 333, Taiwan Republic of China
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25
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Zhu C, Ma X, Wang Y, Mi Y, Fan D, Deng J, Xue W. A novel thiolated human-like collage zinc complex as a promising zinc supplement: physicochemical characteristics and biocompatibility. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 44:411-6. [PMID: 25280722 DOI: 10.1016/j.msec.2014.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 07/03/2014] [Accepted: 08/01/2014] [Indexed: 10/24/2022]
Abstract
To improve zinc binding ability to human-like collagen (HLC) and stability of metal complex, HLC was thiolated by mercaptosuccinylation reaction with S-acetylmercaptosuccinic anhydride (S-AMSA) at pH8.0. One mole of thiolated HLC-Zn (SHLC-Zn) complex possessed 24.3mol zinc ions when pH was 8.0 and zinc concentration was 15 mM. The physicochemical properties and biocompatibility of thiolated HLC-Zn (SHLC-Zn) complex were investigated by UV-vis, CD, electrophoresis analysis, differential scanning calorimetry (DSC) and cell viability assay, respectively. The results showed that SHLC-Zn complex(1) exhibited higher zinc ions than that of native HLC and still maintained the secondary structure of HLC though interaction occurred between SHLC and zinc ions, (2) increased the apparent molecular weight when compared with native HLC, (3) exhibited greater thermal stability than native HLC, and (4) presented toxicity free for BHK cells. This study suggests that the SHLC-Zn complex is a potential nutrition as well as zinc supplement in the medical application.
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Affiliation(s)
- Chenhui Zhu
- Shaanxi Key laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi'an 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an 710069, China
| | - Xiaoxuan Ma
- Shaanxi Key laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi'an 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an 710069, China
| | - Yonghui Wang
- Shaanxi Key laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi'an 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an 710069, China
| | - Yu Mi
- Shaanxi Key laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi'an 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an 710069, China.
| | - Daidi Fan
- Shaanxi Key laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi'an 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an 710069, China.
| | - Jianjun Deng
- Shaanxi Key laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi'an 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an 710069, China
| | - Wenjiao Xue
- Shaanxi Microbial Institute, Xi'an 710043, China
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26
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Kundu B, Kurland NE, Bano S, Patra C, Engel FB, Yadavalli VK, Kundu SC. Silk proteins for biomedical applications: Bioengineering perspectives. Prog Polym Sci 2014. [DOI: 10.1016/j.progpolymsci.2013.09.002] [Citation(s) in RCA: 297] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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27
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Kundu B, Rajkhowa R, Kundu SC, Wang X. Silk fibroin biomaterials for tissue regenerations. Adv Drug Deliv Rev 2013; 65:457-70. [PMID: 23137786 DOI: 10.1016/j.addr.2012.09.043] [Citation(s) in RCA: 741] [Impact Index Per Article: 67.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Revised: 08/26/2012] [Accepted: 09/25/2012] [Indexed: 12/31/2022]
Abstract
Regeneration of tissues using cells, scaffolds and appropriate growth factors is a key approach in the treatments of tissue or organ failure. Silk protein fibroin can be effectively used as a scaffolding material in these treatments. Silk fibers are obtained from diverse sources such as spiders, silkworms, scorpions, mites and flies. Among them, silk of silkworms is a good source for the development of biomedical device. It possesses good biocompatibility, suitable mechanical properties and is produced in bulk in the textile sector. The unique combination of elasticity and strength along with mammalian cell compatibility makes silk fibroin an attractive material for tissue engineering. The present article discusses the processing of silk fibroin into different forms of biomaterials followed by their uses in regeneration of different tissues. Applications of silk for engineering of bone, vascular, neural, skin, cartilage, ligaments, tendons, cardiac, ocular, and bladder tissues are discussed. The advantages and limitations of silk systems as scaffolding materials in the context of biocompatibility, biodegradability and tissue specific requirements are also critically reviewed.
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Affiliation(s)
- Banani Kundu
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur-721302, India
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28
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Mobini S, Hoyer B, Solati-Hashjin M, Lode A, Nosoudi N, Samadikuchaksaraei A, Gelinsky M. Fabrication and characterization of regenerated silk scaffolds reinforced with natural silk fibers for bone tissue engineering. J Biomed Mater Res A 2013; 101:2392-404. [PMID: 23436754 DOI: 10.1002/jbm.a.34537] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Revised: 11/11/2012] [Accepted: 11/13/2012] [Indexed: 11/09/2022]
Abstract
We introduce a novel Bombyx mori silk-based composite material developed for bone tissue engineering. Three-dimensional scaffolds were fabricated by embedding of natural degummed silk fibers in a matrix of regenerated fibroin, followed by freeze-drying. Different ratios of fibers to fibroin were investigated with respect to their influence on mechanical and biological properties. For all scaffold types, an interconnected porous structure suitable for cell penetration was proven by scanning electron microscopy. Compressive tests, carried out in static and cyclic mode under dry as well as wet conditions, revealed a strong impact of fiber reinforcement on compressive modulus and compressive stress. Cell culture experiments with human mesenchymal stem cells demonstrated that the fiber/fibroin composite scaffolds support cell attachment, proliferation, as well as differentiation along the osteoblastic lineage. Considering the excellent mechanical and biological properties, novel fiber/fibroin scaffolds appear to be an interesting structure for prospect studies in bone tissue engineering.
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Affiliation(s)
- Sahba Mobini
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
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29
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Marelli B, Achilli M, Alessandrino A, Freddi G, Tanzi MC, Farè S, Mantovani D. Collagen-reinforced electrospun silk fibroin tubular construct as small calibre vascular graft. Macromol Biosci 2012; 12:1566-74. [PMID: 23060093 DOI: 10.1002/mabi.201200195] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Revised: 08/05/2012] [Indexed: 11/07/2022]
Abstract
None of the replacements proposed in the literature for small-calibre blood vessels (SCBV) fully satisfies the stringent requirements that these grafts have to fulfil. Here, an electrospun silk fibroin tubular construct is hybridized with type I collagen gel to produce a biomimetic SCBV graft with physiologically relevant compliance and burst pressure and optimal cytocompatibility. The hybridization of the two polymers results in the formation of a nanofibrillar hydrated matrix, where the collagen gel enhances the mechanical properties of the SF tubular construct and improves the early response of the material to in vitro cell adhesion and proliferation.
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Affiliation(s)
- Benedetto Marelli
- BioMatLab, Bioengineering Department, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy
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de Moraes MA, Paternotte E, Mantovani D, Beppu MM. Mechanical and Biological Performances of New Scaffolds Made of Collagen Hydrogels and Fibroin Microfibers for Vascular Tissue Engineering. Macromol Biosci 2012; 12:1253-64. [DOI: 10.1002/mabi.201200060] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2012] [Revised: 05/16/2012] [Indexed: 01/17/2023]
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Abstract
Tissue engineering (TE) is a multidisciplinary field that aims at the in vitro engineering of tissues and organs by integrating science and technology of cells, materials and biochemical factors. Mimicking the natural extracellular matrix is one of the critical and challenging technological barriers, for which scaffold engineering has become a prime focus of research within the field of TE. Amongst the variety of materials tested, silk fibroin (SF) is increasingly being recognized as a promising material for scaffold fabrication. Ease of processing, excellent biocompatibility, remarkable mechanical properties and tailorable degradability of SF has been explored for fabrication of various articles such as films, porous matrices, hydrogels, nonwoven mats, etc., and has been investigated for use in various TE applications, including bone, tendon, ligament, cartilage, skin, liver, trachea, nerve, cornea, eardrum, dental, bladder, etc. The current review extensively covers the progress made in the SF-based in vitro engineering and regeneration of various human tissues and identifies opportunities for further development of this field.
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Affiliation(s)
- Naresh Kasoju
- Biomaterials and Tissue Engineering Laboratory, Department of Biotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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Inpanya P, Faikrua A, Ounaroon A, Sittichokechaiwut A, Viyoch J. Effects of the blended fibroin/aloe gel film on wound healing in streptozotocin-induced diabetic rats. Biomed Mater 2012; 7:035008. [DOI: 10.1088/1748-6041/7/3/035008] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Design and characterization of a silk-fibroin-based drug delivery platform using naproxen as a model drug. JOURNAL OF DRUG DELIVERY 2012; 2012:490514. [PMID: 22506122 PMCID: PMC3312329 DOI: 10.1155/2012/490514] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Revised: 10/06/2011] [Accepted: 10/22/2011] [Indexed: 11/20/2022]
Abstract
The objective of this proof-of-concept study was to develop a platform for controlled drug delivery based on silk fibroin (SF) and to explore the feasibility of using SF in oral drug delivery. The SF-containing matrixes were prepared via spray-drying and film casting, and the release profile of the model drug naproxen sodium was evaluated. Attenuated total reflectance Fourier transform infrared spectroscopy (FTIR) has been used to observe conformational changes in SF- and drug-containing compositions. SF-based films, spray-dried microparticles, and matrixes loaded with naproxen were prepared. Both FTIR spectra and in vitro dissolution data demonstrated that SF β-sheet conformation regulates the release profile of naproxen. The controlled release characteristics of the SF-containing compositions were evaluated as a function of SF concentration, temperature, and exposure to dehydrating solvents. The results suggest that SF may be an attractive polymer for use in controlled drug delivery systems.
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Chen L, Zhu C, Fan D, Liu B, Ma X, Duan Z, Zhou Y. A human-like collagen/chitosan electrospun nanofibrous scaffold from aqueous solution: Electrospun mechanism and biocompatibility. J Biomed Mater Res A 2011; 99:395-409. [DOI: 10.1002/jbm.a.33202] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2011] [Revised: 05/31/2011] [Accepted: 06/16/2011] [Indexed: 11/07/2022]
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Van Vlierberghe S, Dubruel P, Schacht E. Biopolymer-based hydrogels as scaffolds for tissue engineering applications: a review. Biomacromolecules 2011; 12:1387-408. [PMID: 21388145 DOI: 10.1021/bm200083n] [Citation(s) in RCA: 1053] [Impact Index Per Article: 81.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Hydrogels are physically or chemically cross-linked polymer networks that are able to absorb large amounts of water. They can be classified into different categories depending on various parameters including the preparation method, the charge, and the mechanical and structural characteristics. The present review aims to give an overview of hydrogels based on natural polymers and their various applications in the field of tissue engineering. In a first part, relevant parameters describing different hydrogel properties and the strategies applied to finetune these characteristics will be described. In a second part, an important class of biopolymers that possess thermosensitive properties (UCST or LCST behavior) will be discussed. Another part of the review will be devoted to the application of cryogels. Finally, the most relevant biopolymer-based hydrogel systems, the different methods of preparation, as well as an in depth overview of the applications in the field of tissue engineering will be given.
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Affiliation(s)
- S Van Vlierberghe
- Polymer Chemistry & Biomaterials Research Group, Ghent University, Ghent, Belgium
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Hakimi O, Gheysens T, Vollrath F, Grahn MF, Knight DP, Vadgama P. Modulation of cell growth on exposure to silkworm and spider silk fibers. J Biomed Mater Res A 2010; 92:1366-72. [PMID: 19353564 DOI: 10.1002/jbm.a.32462] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Recent years have seen an increased interest in the use of natural and modified silks for tissue engineering. Despite longstanding concerns regarding the biocompatibility of silk sutures, only a few studies have been carried out to investigate the biocompatibility of natural silk fibers. Here, we report an in vitro assessment of the effect of nonmodified, degummed silks on cells. We describe the effects of degummed silk fibers as well as extracted sericin on cell metabolism and proliferation. Endothelial cells directly exposed to native degummed Bombyx mori and Antheraea pernyi silks showed lower rates of proliferation and metabolism than nonexposed cells. A similar but milder effect was observed for cells in direct contact with Nephila edulis egg sack fibers. Sericin and silk-conditioned medium had no negative effect on cell proliferation except in medium supplemented with 5% bovine serum prior to conditioning with A. pernyi silk. The toxicity of A. pernyi was negligible after thorough enzymatic treatment of the fibers with trypsin. It is, therefore, proposed that A. pernyi silk contain one or more cytotoxic components, which need to be removed prior to medical use.
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Affiliation(s)
- Osnat Hakimi
- IRC in Biomedical Materials, Queen Mary, University of London, London, United Kingdom.
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Manjula K, Satheesh Kumar M, Soare BG, Picciani P, Siddaramaiah. Biobased chain extended polyurethane and its composites with silk fiber. POLYM ENG SCI 2009. [DOI: 10.1002/pen.21604] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Zhu H, Feng X, Zhang H, Guo Y, Zhang J, Chen J. Structural characteristics and properties of silk fibroin/poly(lactic acid) blend films. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2009; 20:1259-74. [PMID: 19520011 DOI: 10.1163/156856209x452980] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
This paper describes the preparation and characterization of blend films composed of regenerated silk fibroin (SF) and poly(lactic acid) (PLA). FT-IR and XRD of the SF/PLA blend films with different ratios indicated that the secondary structural transition of SF from Silk I to Silk II was induced upon blending with PLA. The effects of SF/PLA blend ratios on the mechanical and physical properties of the blend films were investigated. Compared to pure SF film, the mechanical and thermal properties of the blend films were improved, and surface hydrophilicity and swelling capacity decreased due to the secondary structural transition of SF to Silk II. Among the blend films with different ratios, the SF/PLA blend film with 7 wt% PLA content showed excellent mechanical properties. Meanwhile, the BSA adsorption amount on the blend film increased with the increase of PLA content. In vitro cell adhesion test showed that the blend film was a good matrix for the growth of L929 mouse fibroblast cells. Consequently, controlling the PLA content in the SF film can improve the mechanical and physical properties of the SF film and provide a promising opportunity to widen potential application of SF in the biomaterials field.
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Affiliation(s)
- Hailin Zhu
- The Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Xiasha Higher Education Zone, Zhejiang Sci-Tech University, Hangzhou, 310018, PR China
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Licheng Tan, Yiwang Chen, Yang Wang, Weihua Zhou, Xiangjun Zhu, Xiaohui He, Jiying Su, Suping Cui. In Vivo Evaluation of Butylene Terephthalate-ethylene Oxide-DL, Lactide Polymer as Porous Scaffolds for Tissue Engineering. J BIOACT COMPAT POL 2009. [DOI: 10.1177/0883911508099368] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The copolymers of poly(1,4-butylene terephthalate-co-ethylene oxide-co-DL-lactide), obtained by the transesterification reactions of poly(butylenes terephthalate) with poly(ethylene glycol DL-oligo(lactic acid), were fabricated into porous scaffolds by the established solvent-casting and particulate-leaching technique with NaCl as the porogen. The morphology of the porous scaffolds were investigated by the scanning electron microscopy (SEM), and the pores within the scaffold were proven to be interconnective ranging in size from 200 to 400 μm. The human bone marrow mesenchymal stem cells (MSC) seeded on the scaffolds were confirmed to survive and proliferate within the pores of the scaffold with the observation by immunofluorescence microscope and SEM. In vivo implantation of MSC-seeded scaffolds into athymic nude mice showed significant tissue formation in the subcutaneous sites of the immunodeficient mice at 3, 4, 6, and 9 weeks. The results indicate that the scaffolds were biocompatible with MSC and the host tissue in vitro and in vivo.
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Affiliation(s)
- Licheng Tan
- Institute of Polymers, Nanchang University, Xuefu Road 999 Nanchang 330031, People's Republic of China, Department of Chemistry, School of Science, Nanchang University Xuefu Road 999, Nanchang 330031, People's Republic of China
| | - Yiwang Chen
- Institute of Polymers, Nanchang University, Xuefu Road 999 Nanchang 330031, People's Republic of China, , Department of Chemistry, School of Science, Nanchang University Xuefu Road 999, Nanchang 330031, People's Republic of China
| | - Yang Wang
- The First Affiliated Hospital of Nanchang University Yongwaizheng Road 17, Nanchang 330006, People's Republic of China
| | - Weihua Zhou
- Institute of Polymers, Nanchang University, Xuefu Road 999 Nanchang 330031, People's Republic of China
| | - Xiangjun Zhu
- Department of Chemistry, School of Science, Nanchang University Xuefu Road 999, Nanchang 330031, People's Republic of China
| | - Xiaohui He
- Institute of Polymers, Nanchang University, Xuefu Road 999 Nanchang 330031, People's Republic of China
| | - Jiying Su
- Institute of Polymers, Nanchang University, Xuefu Road 999 Nanchang 330031, People's Republic of China
| | - Suping Cui
- The First Affiliated Hospital of Nanchang University Yongwaizheng Road 17, Nanchang 330006, People's Republic of China
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40
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Inspiration from Natural Silks and Their Proteins. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/s0065-2377(08)00205-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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41
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Kundu J, Dewan M, Ghoshal S, Kundu SC. Mulberry non-engineered silk gland protein vis-à-vis silk cocoon protein engineered by silkworms as biomaterial matrices. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2008; 19:2679-2689. [PMID: 18283532 DOI: 10.1007/s10856-008-3398-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2007] [Accepted: 01/31/2008] [Indexed: 05/25/2023]
Abstract
Silk fibroin from silk gland of Bombyx mori 5th instar larvae was utilized to fabricate films, which may find possible applications as two-dimensional matrices for tissue engineering. Bombyx mori cocoon fibroin is well characterized as potential biomaterial by virtue of its good mechanical strength, water stability, thermal properties, surface roughness and biocompatibility. The present study aims to characterize the biophysical, thermal, mechanical, rheological, swelling properties along with spectroscopic analysis, surface morphology and biocompatibility of the silk gland fibroin films compared with cocoon fibroin. Fibroin solutions showed increased turbidity and shear thinning at higher concentration. The films after methanol treatment swelled moderately and were less hydrophilic compared to the untreated. The spectroscopic analysis of the films illustrated the presence of various amide peaks and conformational transition from random coil to beta sheet on methanol treatment. X-ray diffraction studies also confirmed the secondary structure. Thermogravimetric analysis showed distinct weight loss of the films. The films were mechanically stronger and AFM studies showed surfaces were rougher on methanol treatment. The matrices were biocompatible and supported L929 mouse fibroblast cell growth and proliferation. The results substantiate the silk gland fibroin films as potential biomaterial matrices.
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Affiliation(s)
- Joydip Kundu
- Department of Biotechnology, Indian Institute of Technology, Kharagpur, India.
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Vasconcelos A, Freddi G, Cavaco-Paulo A. Biodegradable Materials Based on Silk Fibroin and Keratin. Biomacromolecules 2008; 9:1299-305. [DOI: 10.1021/bm7012789] [Citation(s) in RCA: 287] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andreia Vasconcelos
- University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal, Silk Research Institute, via Giuseppe Colombo 83, 20133 Milan, Italy
| | - Giuliano Freddi
- University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal, Silk Research Institute, via Giuseppe Colombo 83, 20133 Milan, Italy
| | - Artur Cavaco-Paulo
- University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal, Silk Research Institute, via Giuseppe Colombo 83, 20133 Milan, Italy
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Hu K, Cui F, Lv Q, Ma J, Feng Q, Xu L, Fan D. Preparation of fibroin/recombinant human-like collagen scaffold to promote fibroblasts compatibility. J Biomed Mater Res A 2008; 84:483-90. [PMID: 17618493 DOI: 10.1002/jbm.a.31440] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Recombinant human-like collagen (RHLC) was added to fibroin solution to prepare a novel hybrid scaffold material for skin tissue engineering. The morphology of the scaffold had highly homogeneous and interconnected pores with pore sizes 136 +/- 32 mum measured by scanning electron microscopy (SEM). FTIR analysis indicated intermolecular crosslinkages between fibroin and RHLC formed. The viscosity of the blend solution increased because of the interaction between fibroin and RHLC, and then it restrained the unwanted fibroin aggregation in freezing process that generally appeared in fibroin scaffold preparation with freeze drying method. After methanol treatment the fibroin/RHLC scaffold became water-stable. The porosity of scaffolds was >>90%, the compressive strength and modulus were up to 662 +/- 32 KPa and 7.8 +/- 0.64 MPa, respectively. Fibroblasts cultured within fibroin/RHLC scaffolds were investigated by SEM, laser scanning confocal microscopy (LSCM), and MTT assay, which showed that the adding of RHLC significantly enhanced the cells adhesion, proliferation, and viability compare with fibroin scaffolds. These results suggest that the hybrid scaffolds have favorable characteristics for skin tissue engineering.
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Affiliation(s)
- Kun Hu
- Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
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Abstract
Silks are fibrous proteins with remarkable mechanical properties produced in fiber form by silkworms and spiders. Silk fibers in the form of sutures have been used for centuries. Recently regenerated silk solutions have been used to form a variety of biomaterials, such as gels, sponges and films, for medical applications. Silks can be chemically modified through amino acid side chains to alter surface properties or to immobilize cellular growth factors. Molecular engineering of silk sequences has been used to modify silks with specific features, such as cell recognition or mineralization. The degradability of silk biomaterials can be related to the mode of processing and the corresponding content of beta sheet crystallinity. Several primary cells and cell lines have been successfully grown on different silk biomaterials to demonstrate a range of biological outcomes. Silk biomaterials are biocompatible when studied in vitro and in vivo. Silk scaffolds have been successfully used in wound healing and in tissue engineering of bone, cartilage, tendon and ligament tissues.
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Affiliation(s)
- Charu Vepari
- Departments of Chemical & Biological Engineering and Biomedical Engineering, Tufts University, 4 Colby St, Room 153, Medford, MA 02155, Tel: 617-627-3251, ,
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Zhu N, Cui FZ, Hu K, Zhu L. Biomedical modification of poly(L-lactide) by blending with lecithin. J Biomed Mater Res A 2007; 82:455-61. [PMID: 17295251 DOI: 10.1002/jbm.a.31159] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Lecithin was, for the first time, blended with PLLA to prepare scaffold material for tissue engineering applications in the present study. Solution blending was used to incorporate Lecithin (containing 0-10 wt %) with PLLA to enhance the blend films biocompatibility, hydrophilicity and toughness while maintaining mechanical strength of PLLA. The results of FTIR-ATR analysis indicated that the amino groups of lecitin existed in the films. DSC analysis indicated that T(g) decreased with the increase of lecithin content in the blend films. The percentage elongation markedly increased with increase of lecithin content. The proliferation and viability of the vascular smooth muscle cell cultures on PLLA/Lecithin (containing 3-7 wt %) films were significantly enhanced compared to pure PLLA on tissue culture plates.
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Affiliation(s)
- N Zhu
- Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
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Wang Y, Kim HJ, Vunjak-Novakovic G, Kaplan DL. Stem cell-based tissue engineering with silk biomaterials. Biomaterials 2006; 27:6064-82. [PMID: 16890988 DOI: 10.1016/j.biomaterials.2006.07.008] [Citation(s) in RCA: 605] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2006] [Accepted: 07/06/2006] [Indexed: 12/27/2022]
Abstract
Silks are naturally occurring polymers that have been used clinically as sutures for centuries. When naturally extruded from insects or worms, silk is composed of a filament core protein, termed fibroin, and a glue-like coating consisting of sericin proteins. In recent years, silk fibroin has been increasingly studied for new biomedical applications due to the biocompatibility, slow degradability and remarkable mechanical properties of the material. In addition, the ability to now control molecular structure and morphology through versatile processability and surface modification options have expanded the utility for this protein in a range of biomaterial and tissue-engineering applications. Silk fibroin in various formats (films, fibers, nets, meshes, membranes, yarns, and sponges) has been shown to support stem cell adhesion, proliferation, and differentiation in vitro and promote tissue repair in vivo. In particular, stem cell-based tissue engineering using 3D silk fibroin scaffolds has expanded the use of silk-based biomaterials as promising scaffolds for engineering a range of skeletal tissues like bone, ligament, and cartilage, as well as connective tissues like skin. To date fibroin from Bombyx mori silkworm has been the dominant source for silk-based biomaterials studied. However, silk fibroins from spiders and those formed via genetic engineering or the modification of native silk fibroin sequence chemistries are beginning to provide new options to further expand the utility of silk fibroin-based materials for medical applications.
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Affiliation(s)
- Yongzhong Wang
- Department of Chemical and Biological Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
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