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Huiwen W, Shuai L, Jia X, Shihao D, Kun W, Runhuai Y, Haisheng Q, Jun L. 3D-printed nanohydroxyapatite/methylacrylylated silk fibroin scaffold for repairing rat skull defects. J Biol Eng 2024; 18:22. [PMID: 38515148 PMCID: PMC10956317 DOI: 10.1186/s13036-024-00416-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 02/27/2024] [Indexed: 03/23/2024] Open
Abstract
The repair of bone defects remains a major challenge in the clinic, and treatment requires bone grafts or bone replacement materials. Existing biomaterials have many limitations and cannot meet the various needs of clinical applications. To treat bone defects, we constructed a nanohydroxyapatite (nHA)/methylacrylylated silk fibroin (MASF) composite biological scaffold using photocurable 3D printing technology. In this study, scanning electron microscopy (SEM) was used to detect the changes in the morphological structure of the composite scaffold with different contents of nanohydroxyapatite, and FTIR was used to detect the functional groups and chemical bonds in the composite scaffold to determine the specific components of the scaffold. In in vitro experiments, bone marrow mesenchymal stem cells from SD rats were cocultured with scaffolds soaking solution, and the cytotoxicity, cell proliferation, Western blot analysis, Quantitative real-time PCR analysis, bone alkaline phosphatase activity and alizarin red staining of scaffolds were detected to determine the biocompatibility of scaffolds and the effect of promoting proliferation and osteogenesis of bone marrow mesenchymal stem cells in vitro. In the in vivo experiment, the skull defect was constructed by adult SD rats, and the scaffold was implanted into the skull defect site. After 4 weeks and 8 weeks of culture, the specific osteogenic effect of the scaffold in the skull defect site was detected by animal micro-CT, hematoxylin and eosin (HE) staining and Masson's staining. Through the analysis of the morphological structure of the scaffold, we found that the frame supported good retention of the lamellar structure of silk fibroin, when mixed with nHA, the surface of the stent was rougher, the cell contact area increased, and cell adhesion and lamellar microstructure for cell migration and proliferation of the microenvironment provided a better space. FTIR results showed that the scaffold completely retained the β -folded structure of silk fibroin, and the scaffold composite was present without obvious impurities. The staining results of live/dead cells showed that the constructed scaffolds had no significant cytotoxicity, and thw CCK-8 assay also showed that the constructed scaffolds had good biocompatibility. The results of osteogenic induction showed that the scaffold had good osteogenic induction ability. Moreover, the results also showed that the scaffold with a MASF: nHA ratio of 1: 0.5 (SFH) showed better osteogenic ability. The micro-CT and bone histometric results were consistent with the in vitro results after stent implantation, and there was more bone formation at the bone defect site in the SFH group.This research used photocurable 3D printing technology to successfully build an osteogenesis bracket. The results show that the constructed nHA/MASF biological composite material, has good biocompatibility and good osteogenesis function. At the same time, in the microenvironment, the material can also promote bone defect repair and can potentially be used as a bone defect filling material for bone regeneration applications.
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Affiliation(s)
- Wu Huiwen
- Department of Orthopedics, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
- Institute of Orthopedics, Research Center for Translational Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Liang Shuai
- Department of Orthopedics, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
- Institute of Orthopedics, Research Center for Translational Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Xie Jia
- Department of Orthopedics, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
- Institute of Orthopedics, Research Center for Translational Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Deng Shihao
- Department of Orthopedics, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
- Institute of Orthopedics, Research Center for Translational Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Wei Kun
- School of Biomedical Engineering, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei, 230032, People's Republic of China
| | - Yang Runhuai
- School of Biomedical Engineering, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei, 230032, People's Republic of China.
| | - Qian Haisheng
- School of Biomedical Engineering, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei, 230032, People's Republic of China.
| | - Li Jun
- Department of Orthopedics, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China.
- Institute of Orthopedics, Research Center for Translational Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China.
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Ghorbani F, Kim M, Monavari M, Ghalandari B, Boccaccini AR. Mussel-inspired polydopamine decorated alginate dialdehyde-gelatin 3D printed scaffolds for bone tissue engineering application. Front Bioeng Biotechnol 2022; 10:940070. [PMID: 36003531 PMCID: PMC9393248 DOI: 10.3389/fbioe.2022.940070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/11/2022] [Indexed: 02/06/2023] Open
Abstract
This study utilized extrusion-based 3D printing technology to fabricate calcium-cross-linked alginate dialdehyde-gelatin scaffolds for bone regeneration. The surface of polymeric constructs was modified with mussel-derived polydopamine (PDA) in order to induce biomineralization, increase hydrophilicity, and enhance cell interactions. Microscopic observations revealed that the PDA layer homogeneously coated the surface and did not appear to induce any distinct change in the microstructure of the scaffolds. The PDA-functionalized scaffolds were more mechanically stable (compression strength of 0.69 ± 0.02 MPa) and hydrophilic (contact angle of 26) than non-modified scaffolds. PDA-decorated ADA-GEL scaffolds demonstrated greater durability. As result of the 18-days immersion in simulated body fluid solution, the PDA-coated scaffolds showed satisfactory biomineralization. Based on theoretical energy analysis, it was shown that the scaffolds coated with PDA interact spontaneously with osteocalcin and osteomodulin (binding energy values of −35.95 kJ mol−1 and −46.39 kJ mol−1, respectively), resulting in the formation of a protein layer on the surface, suggesting applications in bone repair. PDA-coated ADA-GEL scaffolds are capable of supporting osteosarcoma MG-63 cell adhesion, viability (140.18% after 7 days), and proliferation. In addition to increased alkaline phosphatase secretion, osteoimage intensity also increased, indicating that the scaffolds could potentially induce bone regeneration. As a consequence, the present results confirm that 3D printed PDA-coated scaffolds constitute an intriguing novel approach for bone tissue engineering.
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Affiliation(s)
- Farnaz Ghorbani
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen, Germany
- *Correspondence: Farnaz Ghorbani, ; Aldo R. Boccaccini,
| | - Minjoo Kim
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Mahshid Monavari
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Behafarid Ghalandari
- State Key Laboratory of Oncogenes and Related Genes, Institute for Personalized Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Aldo R. Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen, Germany
- *Correspondence: Farnaz Ghorbani, ; Aldo R. Boccaccini,
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Pratap Singh D, Packirisamy G. Biopolymer based edible coating for enhancing the shelf life of horticulture products. FOOD CHEMISTRY. MOLECULAR SCIENCES 2022; 4:100085. [PMID: 35415673 PMCID: PMC8991528 DOI: 10.1016/j.fochms.2022.100085] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 01/02/2022] [Accepted: 02/04/2022] [Indexed: 12/16/2022]
Abstract
Silk-fibroin based edible coating to enhance the shelf-life of perishable food This edible coating iscost-effective, biodegradable, and non-toxic. Coating can be prepared in two ways: nanofiber-based coating and dip-coating. Coating maintainstexture,stiffness and nutrient content of food for longtime.
As per the report of the United Nations, half of the fruits and vegetables loses annually. Industries are trying to reduce the postharvest loss by using coatings. Wax coating is the most preferred way to preserve fruits and veggies. Sometimes wax is mixed with some chemical compounds that are known to be carcinogenic. Recently many edible films have been developed using natural polymers to enhance the shelf life of food. The edible films act as a barrier between the food and the external environment to prevent the direct interaction of food with atmospheric gases and microbes, which reduce the rate of respiration, keeping the food fresh for an extended period. But, the cost of edible biofilms is high and restricted at the industrial level; the local fruits and vegetable vendors are not able to buy such costly biofilms. We have developed the solution for dip-coating and nanofiber coating using a blend of silk fibroin, PVA, honey and curcumin, which is a cost-effective method for fruits and vegetable vendors. The material used for coating is FDA approved. The techniques utilized for synthesizing the biofilm are electrospinning and dip-coating. Coating found to increase the shelf-life of fruits and vegetables.
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Affiliation(s)
- Dravin Pratap Singh
- Nanobiotechnology Laboratory, Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
| | - Gopinath Packirisamy
- Nanobiotechnology Laboratory, Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India.,Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
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Sangkert S, Juncheed K, Meesane J. Osteoconductive Silk Fibroin Binders for Bone Repair in Alveolar Cleft Palate: Fabrication, Structure, Properties, and In Vitro Testing. J Funct Biomater 2022; 13:jfb13020080. [PMID: 35735935 PMCID: PMC9224859 DOI: 10.3390/jfb13020080] [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: 04/19/2022] [Revised: 05/25/2022] [Accepted: 06/08/2022] [Indexed: 11/16/2022] Open
Abstract
Osteoconductive silk fibroin (SF) binders were fabricated for the bone repair of an alveolar cleft defect. Binders were prefigureared by mixing different ratios of a mixture of random coils and SF aggregation with SF fibrils: 100:0 (SFB100), 75:25 (SFB75), 50:50 (SFB50), 25:75 (SFB25), and 0:100 (SFB0). The gelation, molecular organization, structures, topography, and morphology of the binders were characterized and observed. Their physical, mechanical, and biological properties were tested. The SF binders showed gelation via self-assembly of SF aggregation and fibrillation. SFB75, SFB50, and SFB25 had molecular formation via the amide groups and showed more structural stability than SFB100. The morphology of SFB0 demonstrated the largest pore size. SFB0 showed a lowest hydrophilicity. SFB100 showed the highest SF release. SFB25 had the highest maximum load. SFB50 exhibited the lowest elongation at break. Binders with SF fibrils showed more cell viability and higher cell proliferation, ALP activity, calcium deposition, and protein synthesis than without SF fibrils. Finally, the results were deduced: SFB25 demonstrated suitable performance that is promising for the bone repair of an alveolar cleft defect.
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Nguyen TT, Hu CC, Sakthivel R, Nabilla SC, Huang YW, Yu J, Cheng NC, Kuo YJ, Chung RJ. Preparation of gamma poly-glutamic acid/hydroxyapatite/collagen composite as the 3D-printing scaffold for bone tissue engineering. Biomater Res 2022; 26:21. [PMID: 35642070 PMCID: PMC9158383 DOI: 10.1186/s40824-022-00265-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 05/02/2022] [Indexed: 11/19/2022] Open
Abstract
Background All types of movements involve the role of articular cartilage and bones. The presence of cartilage enables bones to move over one another smoothly. However, repetitive microtrauma and ischemia as well as genetic effects can cause an osteochondral lesion. Numerous treatment methods such as microfracture surgergy, autograft, and allograft, have been used, however, it possesses treatment challenges including prolonged recovery time after surgery and poses a financial burden on patients. Nowadays, various tissue engineering approaches have been developed to repair bone and osteochondral defects using biomaterial implants to induce the regeneration of stem cells. Methods In this study, a collagen (Col)/γ-polyglutamate acid (PGA)/hydroxyapatite (HA) composite scaffold was fabricated using a 3D printing technique. A Col/γ-PGA/HA 2D membrane was also fabricated for comparison. The scaffolds (four layers) were designed with the size of 8 mm in diameter and 1.2 mm in thickness. The first layer was HA/γ-PGA and the second to fourth layers were Col/γ-PGA. In addition, a 2D membrane was constructed from hydroxyapatite/γ-PGA and collagen/γ-PGA with a ratio of 1:3. The biocompatibility property and degradation activity were investigated for both scaffold and membrane samples. Rat bone marrow mesenchymal stem cells (rBMSCs) and human adipose-derived stem cells (hADSCs) were cultured on the samples and were tested in-vitro to evaluate cell attachment, proliferation, and differentiation. In-vivo experiments were performed in the rat and nude mice models. Results In-vitro and in-vivo results show that the developed scaffold is of well biodegradation and biocompatible properties, and the Col-HA scaffold enhances the mechanical properties for osteochondrogenesis in both in-vitro and animal trials. Conclusions The composite would be a great biomaterial application for bone and osteochondral regeneration.
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Fitzpatrick DP, Kealey C, Brady D, Gately N. Application of biomaterials for complex anal fistulae. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1999955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Daniel P. Fitzpatrick
- Material Research Institute, Athlone Institute of Technology, Athlone, Ireland
- Department of Life and Physical Science, Athlone Institute of Technology, Athlone, Ireland
| | - Carmel Kealey
- Department of Life and Physical Science, Athlone Institute of Technology, Athlone, Ireland
- Bioscience Research Institute, Athlone Institute of Technology, Athlone, Ireland
| | - Damien Brady
- Department of Life and Physical Science, Athlone Institute of Technology, Athlone, Ireland
- Department of Science and Health, Institute of Technology Carlow, Carlow, Ireland
| | - Noel Gately
- Material Research Institute, Athlone Institute of Technology, Athlone, Ireland
- Applied Polymer Technologies Gateway Centre, Athlone Institute of Technology, Athlone, Ireland
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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: 51] [Impact Index Per Article: 12.8] [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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Moonesi Rad R, Atila D, Evis Z, Keskin D, Tezcaner A. Development of a novel functionally graded membrane containing boron‐modified bioactive glass nanoparticles for guided bone regeneration. J Tissue Eng Regen Med 2019; 13:1331-1345. [DOI: 10.1002/term.2877] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 03/23/2019] [Accepted: 04/29/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Reza Moonesi Rad
- Department of BiotechnologyMiddle East Technical University Ankara Turkey
| | - Deniz Atila
- Department of Engineering SciencesMiddle East Technical University Ankara Turkey
| | - Zafer Evis
- Department of Engineering SciencesMiddle East Technical University Ankara Turkey
| | - Dilek Keskin
- Department of BiotechnologyMiddle East Technical University Ankara Turkey
- Department of Engineering SciencesMiddle East Technical University Ankara Turkey
- BIOMATEN, CoE in Biomaterials and Tissue EngineeringMETU Ankara Turkey
- MODSIMMER, TAF Modeling and Simulation R&D CenterMETU Ankara Turkey
| | - Ayşen Tezcaner
- Department of BiotechnologyMiddle East Technical University Ankara Turkey
- Department of Engineering SciencesMiddle East Technical University Ankara Turkey
- BIOMATEN, CoE in Biomaterials and Tissue EngineeringMETU Ankara Turkey
- MODSIMMER, TAF Modeling and Simulation R&D CenterMETU Ankara Turkey
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Zhou Q, Yuan J, Wang Y, Wang P, Yuan J, Deng C, Wang Q. Biomimetic mineralization behavior of COS-grafted silk fibroin following hexokinase-mediated phosphorylation. Int J Biol Macromol 2019; 131:241-252. [PMID: 30878613 DOI: 10.1016/j.ijbiomac.2019.03.081] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 03/12/2019] [Accepted: 03/12/2019] [Indexed: 10/27/2022]
Abstract
Silk fibroin (SF) has potential applications in the biomedical field because of its excellent mechanical properties and biocompatibility. In the current study, chitooligosaccharide (COS) was enzymatically grafted onto SF using laccase. Subsequently, COS-grafted SF (SF-g-COS) was treated enzymatically in the presence of hexokinase and Mg-chelated adenosine triphosphate (ATP), so as to introduce phosphate groups onto the fibroin chains and promote the deposition of hydroxyapatite (HAp) during in situ biomimetic mineralization. The efficacy of phosphorylation and biomimetic mineralization of the SF-g-COS was evaluated by means of HPLC, MALDI-TOF MS, FTIR, XRD and EDS-Mapping. The results indicate that hexokinase has the capability to catalyze the phosphorylation of COS, resulting in an increase in the quantity of phosphorus in the SF-g-COS. Following mineralization of the phosphorylated SF-g-COS, a greater number of mineral phases were detected on its surface, accompanied by a higher content of calcium and phosphorus compared with other specimens. Cell viability tests using NIH/3T3 cells and cellular adhesion potential with MG-63 cells indicated that the fibroin-based biocomposite exhibited acceptable biocompatibility and superior cellular adhesion properties. The present study describes a novel method for preparation of fibroin/HAp biocomposites for bone tissue engineering.
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Affiliation(s)
- Qian Zhou
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Jingjing Yuan
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Yalin Wang
- Wuxi Medical School, Jiangnan University, Wuxi 214122, China
| | - Ping Wang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi 214122, China.
| | - Jiugang Yuan
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Chao Deng
- Wuxi Medical School, Jiangnan University, Wuxi 214122, China
| | - Qiang Wang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi 214122, China
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Xie X, Yu J, Zhao Z, Zheng Z, Xie M, Wang X, Han Z, Li G. Fabrication and drug release properties of curcumin-loaded silk fibroin nanofibrous membranes. ADSORPT SCI TECHNOL 2018. [DOI: 10.1177/0263617418820416] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
| | | | | | | | | | | | - Zhifen Han
- Shanghai University of Traditional Chinese Medicine, China
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Landry MJ, Rollet FG, Kennedy TE, Barrett CJ. Layers and Multilayers of Self-Assembled Polymers: Tunable Engineered Extracellular Matrix Coatings for Neural Cell Growth. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:8709-8730. [PMID: 29481757 DOI: 10.1021/acs.langmuir.7b04108] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Growing primary cells and tissue in long-term cultures, such as primary neural cell culture, presents many challenges. A critical component of any environment that supports neural cell growth in vivo is an appropriate 2-D surface or 3-D scaffold, typically in the form of a thin polymer layer that coats an underlying plastic or glass substrate and aims to mimic critical aspects of the extracellular matrix. A fundamental challenge to mimicking a hydrophilic, soft natural cell environment is that materials with these properties are typically fragile and are difficult to adhere to and stabilize on an underlying plastic or glass cell culture substrate. In this review, we highlight the current state of the art and overview recent developments of new artificial extracellular matrix (ECM) surfaces for in vitro neural cell culture. Notably, these materials aim to strike a balance between being hydrophilic and soft while also being thick, stable, robust, and bound well to the underlying surface to provide an effective surface to support long-term cell growth. We focus on improved surface and scaffold coating systems that can mimic the natural physicochemical properties that enhance neuronal survival and growth, applied as soft hydrophilic polymer coatings for both in vitro cell culture and for implantable neural probes and 3-D matrixes that aim to enhance stability and longevity to promote neural biocompatibility in vivo. With respect to future developments, we outline four emerging principles that serve to guide the development of polymer assemblies that function well as artificial ECMs: (a) design inspired by biological systems and (b) the employment of principles of aqueous soft bonding and self-assembly to achieve (c) a high-water-content gel-like coating that is stable over time in a biological environment and possesses (d) a low modulus to more closely mimic soft, compliant real biological tissue. We then highlight two emerging classes of thick material coatings that have successfully captured these guiding principles: layer-by-layer deposited water-soluble polymers (LbL) and silk fibroin (SF) materials. Both materials can be deposited from aqueous solution yet transition to a water-insoluble coating for long-term stability while retaining a softness and water content similar to those of biological materials. These materials hold great promise as next-generation biocompatible coatings for tissue engineers and for chemists and biologists within the biomedical field.
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Zhou B, Zhou Q, Wang P, Yuan J, Yu Y, Deng C, Wang Q, Fan X. HRP-mediated graft polymerization of acrylic acid onto silk fibroins and in situ biomimetic mineralization. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 29:72. [PMID: 29796746 DOI: 10.1007/s10856-018-6084-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 05/04/2018] [Indexed: 06/08/2023]
Abstract
Silk fibroin (SF) can be extensively utilized in biomedical areas owing to its appreciable bioactivity. In this study, biocompatible composites of SF and hydroxyapatite (HAp) were fabricated through in situ biomimetic mineralization process. Graft copolymerization of acrylic acid (AA) onto SF was conducted by using the catalytic system of acetylacetone (ACAC), hydrogen peroxide (H2O2) and horseradish peroxidase (HRP), for enhancing the deposition of apatite onto the fibroin chains. Subsequently, biomimetic mineralization of the prepared fibroin-based membrane was performed in Ca/P solutions to synthesize the organized SF/HAp composites. The efficacies of graft copolymerization and biomimetic mineralization were evaluated by means of ATR-FTIR, GPC, EDS-Mapping, XRD and others. The results denoted that AA was successfully graft-copolymerized with fibroin and formed the copolymer of silk fibroin-graft-polyacrylic acid (SF-g-PAA), and the grafting percentage (GP) and grafting efficiency (GE) under the optimal condition reached to 23.2% and 29.4%, respectively. More mineral phases were detected on the surface of SF-g-PAA membrane after mineralization process when compared to that of the untreated fibroin membrane, companying with an improved mechanical property. According to MG-63 cell viability and fluorescent adhesion assays, the mineralized SF-g-PAA composite showed satisfactory biocompatibility and exceptional adhesive effects as well. The synthetized composite of SF-g-PAA/HAp can be potentially applied in the fields of bone tissue engineering.
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Affiliation(s)
- Buguang Zhou
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Qian Zhou
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Ping Wang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, 214122, People's Republic of China.
| | - Jiugang Yuan
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Yuanyuan Yu
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Chao Deng
- Wuxi Medical School, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Qiang Wang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Xuerong Fan
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, 214122, People's Republic of China
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Xie X, Liu L, Zheng Z, Han Z, Zhi M, Kaplan DL, Li G, Wang X. Silk Fibroin-Based Fibrous Anal Fistula Plug with Drug Delivery Function. Macromol Biosci 2018; 18:e1700384. [DOI: 10.1002/mabi.201700384] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 01/13/2018] [Indexed: 01/13/2023]
Affiliation(s)
- Xusheng Xie
- National Engineering Laboratory for Modern Silk; College of Textile and Clothing Engineering; Soochow University; Suzhou 215123 China
| | - Lei Liu
- National Engineering Laboratory for Modern Silk; College of Textile and Clothing Engineering; Soochow University; Suzhou 215123 China
| | - Zhaozhu Zheng
- National Engineering Laboratory for Modern Silk; College of Textile and Clothing Engineering; Soochow University; Suzhou 215123 China
| | - Zhifen Han
- Department of Medical Oncology; Shuguang Hospital; Shanghai University of Chinese Medicine; Shanghai 201203 China
| | - Min Zhi
- The Sixth Affiliated Hospital of Sun Yat-sen University; Erheng road Guangzhou 510655 China
| | - David L. Kaplan
- Department of Biomedical Engineering; Tufts University; 4 Colby St, Room 153 Medford MA 02155 USA
| | - Gang Li
- National Engineering Laboratory for Modern Silk; College of Textile and Clothing Engineering; Soochow University; Suzhou 215123 China
| | - Xiaoqin Wang
- National Engineering Laboratory for Modern Silk; College of Textile and Clothing Engineering; Soochow University; Suzhou 215123 China
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Karuppannan C, Sivaraj M, Kumar JG, Seerangan R, Balasubramanian S, Gopal DR. Fabrication of Progesterone-Loaded Nanofibers for the Drug Delivery Applications in Bovine. NANOSCALE RESEARCH LETTERS 2017; 12:116. [PMID: 28228001 PMCID: PMC5309186 DOI: 10.1186/s11671-016-1781-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 12/09/2016] [Indexed: 05/24/2023]
Abstract
Progesterone is a potent drug for synchronization of the estrus and ovulation cycles in bovine. At present, the estrus cycle of bovine is controlled by the insertion of progesterone-embedded silicone bands. The disadvantage of nondegradable polymer inserts is to require for disposal of these bands after their use. The study currently focuses on preparation of biodegradable progesterone-incorporated nanofiber for estrus synchronization. Three different concentrations (1.2, 1.9, and 2.5 g) of progesterone-impregnated nanofibers were fabricated using electrospinning. The spun membrane were characterized by scanning electron microscopy, X-ray diffraction, differential scanning calorimetry, thermogravimetric analysis, and Fourier transform infrared spectroscopy. Uniform surface morphology, narrow size distribution, and interaction between progesterone and zein were confirmed by SEM. FTIR spectroscopy indicated miscibility and interaction between zein and progesterone. X-ray analysis indicated that the size of zein crystallites increased with progesterone content in nanofibers. Significant differences in thermal behavior of progesterone-impregnated nanofiber were observed by DSC. Cell viability studies of progesterone-loaded nanofiber were examined using MTT assay. In vitro release experiment is to identify the suitable progesterone concentration for estrus synchronization. This study confirms that progesterone-impregnated nanofibers are an ideal vehicle for progesterone delivery for estrus synchronization of bovines.
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Affiliation(s)
- Chitra Karuppannan
- Translational Research Platform for Veterinary Biologicals, Chennai, India
| | - Mehnath Sivaraj
- Translational Research Platform for Veterinary Biologicals, Chennai, India
| | - J. Ganesh Kumar
- Tamil Nadu Veterinary and Animal Sciences University, Chennai, India
| | | | - S. Balasubramanian
- Translational Research Platform for Veterinary Biologicals, Chennai, India
| | - Dhinakar Raj Gopal
- Translational Research Platform for Veterinary Biologicals, Chennai, India
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15
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Bhattacharjee P, Kundu B, Naskar D, Kim HW, Maiti TK, Bhattacharya D, Kundu SC. Silk scaffolds in bone tissue engineering: An overview. Acta Biomater 2017; 63:1-17. [PMID: 28941652 DOI: 10.1016/j.actbio.2017.09.027] [Citation(s) in RCA: 173] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 08/26/2017] [Accepted: 09/19/2017] [Indexed: 12/17/2022]
Abstract
Bone tissue plays multiple roles in our day-to-day functionality. The frequency of accidental bone damage and disorder is increasing worldwide. Moreover, as the world population continues to grow, the percentage of the elderly population continues to grow, which results in an increased number of bone degenerative diseases. This increased elderly population pushes the need for artificial bone implants that specifically employ biocompatible materials. A vast body of literature is available on the use of silk in bone tissue engineering. The current work presents an overview of this literature from materials and fabrication perspective. As silk is an easy-to-process biopolymer; this allows silk-based biomaterials to be molded into diverse forms and architectures, which further affects the degradability. This makes silk-based scaffolds suitable for treating a variety of bone reconstruction and regeneration objectives. Silk surfaces offer active sites that aid the mineralization and/or bonding of bioactive molecules that facilitate bone regeneration. Silk has also been blended with a variety of polymers and minerals to enhance its advantageous properties or introduce new ones. Several successful works, both in vitro and in vivo, have been reported using silk-based scaffolds to regenerate bone tissues or other parts of the skeletal system such as cartilage and ligament. A growing trend is observed toward the use of mineralized and nanofibrous scaffolds along with the development of technology that allows to control scaffold architecture, its biodegradability and the sustained releasing property of scaffolds. Further development of silk-based scaffolds for bone tissue engineering, taking them up to and beyond the stage of human trials, is hoped to be achieved in the near future through a cross-disciplinary coalition of tissue engineers, material scientists and manufacturing engineers. STATEMENT OF SIGNIFICANCE The state-of-art of silk biomaterials in bone tissue engineering, covering their wide applications as cell scaffolding matrices to micro-nano carriers for delivering bone growth factors and therapeutic molecules to diseased or damaged sites to facilitate bone regeneration, is emphasized here. The review rationalizes that the choice of silk protein as a biomaterial is not only because of its natural polymeric nature, mechanical robustness, flexibility and wide range of cell compatibility but also because of its ability to template the growth of hydroxyapatite, the chief inorganic component of bone mineral matrix, resulting in improved osteointegration. The discussion extends to the role of inorganic ions such as Si and Ca as matrix components in combination with silk to influence bone regrowth. The effect of ions or growth factor-loaded vehicle incorporation into regenerative matrix, nanotopography is also considered.
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16
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Das S, Sharma M, Saharia D, Sarma KK, Muir EM, Bora U. Electrospun silk-polyaniline conduits for functional nerve regeneration in rat sciatic nerve injury model. ACTA ACUST UNITED AC 2017. [PMID: 28632137 DOI: 10.1088/1748-605x/aa7802] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The present study describes the fabrication of polyaniline-silk fibroin (PASF) nanocomposite-based nerve conduits and their subsequent implantation in a rat sciatic nerve injury model for peripheral nerve regeneration. This is the first in vivo study of polyaniline-based nerve conduits describing the safety and efficacy of the conduits in treating peripheral nerve injuries. The nanocomposite was synthesized by electrospinning a mixture of silk fibroin protein and polyaniline wherein the silk nanofibers were observed to be uniformly coated with polyaniline nanoparticles. Tubular shaped nerve conduits were subsequently formed by multiple rolling of the electrospun sheet over a stainless steel mandrel. The conduits were characterized in vitro for their physico-chemical properties as well as their compatibility with rat Schwann cells. Upon implantation in a 10 mm sciatic nerve injury model, the conduits were evaluated for their neuro-regenerative potential through extensive electrophysiological studies and monitoring of gait pattern over a course of 12 months. Gross examination, histological and ultra-structure analyses of the conduits and the regenerated nerve were also performed to evaluate morphological regeneration of transected nerve. PASF nanocomposite conduits seeded with Schwann cell (cell seeded PASF) exhibited excellent nerve conduction velocity (NCV) (50 m s-1), compound muscle action potential (CMAP) (12.8 mV), motor unit potential (MUP) (124 μV), growth of healthy tissue along the nerve gap and thick myelination of axons 12 months after implantation indicating enhanced neuro-regeneration. The excellent functional recovery achieved by animals implanted with cell seeded PASF conduits (86.2% NCV; 80.00% CMAP; 76.07% MUP) are superior to outcomes achieved previously with similar electrically conductive conduits. We believe that the present study would encourage further research in developing electrically active neural implants using synthetic conducting polymers and the in vivo applications of the same.
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Affiliation(s)
- Suradip Das
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
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17
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Singh BN, Pramanik K. Development of novel silk fibroin/polyvinyl alcohol/sol–gel bioactive glass composite matrix by modified layer by layer electrospinning method for bone tissue construct generation. Biofabrication 2017; 9:015028. [DOI: 10.1088/1758-5090/aa644f] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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18
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Hardy JG, Torres-Rendon JG, Leal-Egaña A, Walther A, Schlaad H, Cölfen H, Scheibel TR. Biomineralization of Engineered Spider Silk Protein-Based Composite Materials for Bone Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2016; 9:E560. [PMID: 28773681 PMCID: PMC5456849 DOI: 10.3390/ma9070560] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 06/06/2016] [Accepted: 06/24/2016] [Indexed: 01/26/2023]
Abstract
Materials based on biodegradable polyesters, such as poly(butylene terephthalate) (PBT) or poly(butylene terephthalate-co-poly(alkylene glycol) terephthalate) (PBTAT), have potential application as pro-regenerative scaffolds for bone tissue engineering. Herein, the preparation of films composed of PBT or PBTAT and an engineered spider silk protein, (eADF4(C16)), that displays multiple carboxylic acid moieties capable of binding calcium ions and facilitating their biomineralization with calcium carbonate or calcium phosphate is reported. Human mesenchymal stem cells cultured on films mineralized with calcium phosphate show enhanced levels of alkaline phosphatase activity suggesting that such composites have potential use for bone tissue engineering.
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Affiliation(s)
- John G Hardy
- Lehrstuhl Biomaterialien, Universität Bayreuth, Universitätsstraße 30, Bayreuth 95447, Germany.
| | | | - Aldo Leal-Egaña
- Lehrstuhl Biomaterialien, Universität Bayreuth, Universitätsstraße 30, Bayreuth 95447, Germany.
| | - Andreas Walther
- DWI Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, Aachen 52056, Germany.
| | - Helmut Schlaad
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, Potsdam 14476, Germany.
| | - Helmut Cölfen
- Physical Chemistry, Department of Chemistry, University of Konstanz, Universitätsstr. 10, Konstanz D-78457, Germany.
| | - Thomas R Scheibel
- Lehrstuhl Biomaterialien, Universität Bayreuth, Universitätsstraße 30, Bayreuth 95447, Germany.
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19
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Buga MR, Zaharia C, Bălan M, Bressy C, Ziarelli F, Margaillan A. Surface modification of silk fibroin fibers with poly(methyl methacrylate) and poly(tributylsilyl methacrylate) via RAFT polymerization for marine antifouling applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 51:233-41. [DOI: 10.1016/j.msec.2015.03.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 02/25/2015] [Accepted: 03/09/2015] [Indexed: 11/16/2022]
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20
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He J, Cheng Y, Li P, Zhang Y, Zhang H, Cui S. Preparation and characterization of biomimetic tussah silk fibroin/chitosan composite nanofibers. IRANIAN POLYMER JOURNAL 2013. [DOI: 10.1007/s13726-013-0153-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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