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Ji P, Zhang C, Kong Y, Liu H, Guo J, Shi L, Yang H, Gu Z, Liu Y. Collagen Film with Bionic Layered Structure and High Light Transmittance for Personalized Corneal Repair Fabricated by Controlled Solvent Evaporation Technique. J Funct Biomater 2022; 13:jfb13020052. [PMID: 35645260 PMCID: PMC9149912 DOI: 10.3390/jfb13020052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/26/2022] [Accepted: 04/29/2022] [Indexed: 01/27/2023] Open
Abstract
Corneal blindness is a common phenomenon, and corneal transplantation is an effective treatment for corneal defects. However, there is usually a mismatch between the corneal repair material and the degree of the patient’s corneal defect. Therefore, patients with different corneal defects need suitable corneal repair materials with a specific microstructure for personalized treatment. In this research, collagen films with bionic structures were fabricated through ethanol evaporation technique by regulating the volume ratios of collagen solution: ethanol = 10:0(Col)/9:1(CC91)/8:2(CC82)/CC73(CC73). Under various preparation conditions, the obtained collagen films contain layered structures of different density. SEM photos show that the CC73 film with a dense layer arrangement has a microstructure similar to that of the corneal epithelial layer, whereas the Col film has a loose layered structure similar to that of the corneal stroma layer. Four kinds of collagen films showed different optical properties and water absorption ability. A more ordered arrangement of internal layer structure leads to better mechanical properties of the collagen film. In view of this, we think that these collagen films with different microstructures and different interlayer spacing may have huge potential applications for personalized corneal repair.
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Affiliation(s)
- Peihong Ji
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China; (P.J.); (Z.G.)
| | - Chuanlei Zhang
- Institute of Biomedical Engineering and Health Sciences, Changzhou University, Changzhou 213164, China; (C.Z.); (Y.K.); (H.L.); (J.G.)
| | - Yanhui Kong
- Institute of Biomedical Engineering and Health Sciences, Changzhou University, Changzhou 213164, China; (C.Z.); (Y.K.); (H.L.); (J.G.)
| | - Huiyu Liu
- Institute of Biomedical Engineering and Health Sciences, Changzhou University, Changzhou 213164, China; (C.Z.); (Y.K.); (H.L.); (J.G.)
| | - Jia Guo
- Institute of Biomedical Engineering and Health Sciences, Changzhou University, Changzhou 213164, China; (C.Z.); (Y.K.); (H.L.); (J.G.)
| | - Longsheng Shi
- Hangzhou Matrix Medical Technology Co., Ltd., Hangzhou 311100, China;
| | - Hui Yang
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou 341000, China;
| | - Zhongwei Gu
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China; (P.J.); (Z.G.)
| | - Yang Liu
- Institute of Biomedical Engineering and Health Sciences, Changzhou University, Changzhou 213164, China; (C.Z.); (Y.K.); (H.L.); (J.G.)
- Hangzhou Matrix Medical Technology Co., Ltd., Hangzhou 311100, China;
- Correspondence:
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Mijanović O, Pylaev T, Nikitkina A, Artyukhova M, Branković A, Peshkova M, Bikmulina P, Turk B, Bolevich S, Avetisov S, Timashev P. Tissue Engineering Meets Nanotechnology: Molecular Mechanism Modulations in Cornea Regeneration. MICROMACHINES 2021; 12:mi12111336. [PMID: 34832752 PMCID: PMC8618371 DOI: 10.3390/mi12111336] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 09/23/2021] [Accepted: 10/14/2021] [Indexed: 12/13/2022]
Abstract
Nowadays, tissue engineering is one of the most promising approaches for the regeneration of various tissues and organs, including the cornea. However, the inability of biomaterial scaffolds to successfully integrate into the environment of surrounding tissues is one of the main challenges that sufficiently limits the restoration of damaged corneal tissues. Thus, the modulation of molecular and cellular mechanisms is important and necessary for successful graft integration and long-term survival. The dynamics of molecular interactions affecting the site of injury will determine the corneal transplantation efficacy and the post-surgery clinical outcome. The interactions between biomaterial surfaces, cells and their microenvironment can regulate cell behavior and alter their physiology and signaling pathways. Nanotechnology is an advantageous tool for the current understanding, coordination, and directed regulation of molecular cell-transplant interactions on behalf of the healing of corneal wounds. Therefore, the use of various nanotechnological strategies will provide new solutions to the problem of corneal allograft rejection, by modulating and regulating host-graft interaction dynamics towards proper integration and long-term functionality of the transplant.
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Affiliation(s)
- Olja Mijanović
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
- Correspondence:
| | - Timofey Pylaev
- Saratov Medical State University N.A. V.I. Razumovsky, 112 Bolshaya Kazachya St., 410012 Saratov, Russia;
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, 410049 Saratov, Russia
| | - Angelina Nikitkina
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
| | - Margarita Artyukhova
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
| | - Ana Branković
- Department of Forensic Engineering, University of Criminal Investigation and Police Studies, 196 Cara Dušana St., Belgrade 11000, Serbia;
| | - Maria Peshkova
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
- World-Class Research Center “Digital biodesign and personalized healthcare”, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia
| | - Polina Bikmulina
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
- World-Class Research Center “Digital biodesign and personalized healthcare”, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia
| | - Boris Turk
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
- Department of Biochemistry and Molecular and Structural Biology, Jožef Stefan Institute, 1000 Ljubljana, Slovenia
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Sergey Bolevich
- Department of Human Pathology, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia;
| | - Sergei Avetisov
- Department of Eye Diseases, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia;
- Research Institute of Eye Diseases, 11 Rossolimo St., 119021 Moscow, Russia
| | - Peter Timashev
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
- World-Class Research Center “Digital biodesign and personalized healthcare”, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia
- Chemistry Department, Lomonosov Moscow State University, Leninskiye Gory 1-3, 119991 Moscow, Russia
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Transformation of electrospun Keratin/PVA nanofiber membranes into multilayered 3D Scaffolds: Physiochemical studies and corneal implant applications. Int J Pharm 2021; 610:121228. [PMID: 34715260 DOI: 10.1016/j.ijpharm.2021.121228] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 10/19/2021] [Accepted: 10/20/2021] [Indexed: 11/23/2022]
Abstract
In this study, we engineered an electrospun keratin/polyvinyl alcohol (PVA) nanofiber membrane with a three-dimensional (3D) fiber network. Both keratin and PVA are known as biocompatible materials, and the 3D assembly of these two led to a transparent membrane with superior mechanical properties. The as-prepared three-dimensionally assembled keratin/PVA nanofiber (3D keratin/PVA NFs) membrane was characterized by state-of-the-art techniques and used as a corneal implant in rabbit eyes. The transparency, mechanical properties, and biocompatibility of the electrospun keratin/PVA NFs were highly enhanced after 3D modification which is mainly attributed to its unique three-dimensional morphology. The performance of 3D keratin/PVA NFs membrane was compared with horse amniotic membrane (AM), and the results obtained from the clinical and histological evaluations showed that it could be considered as an alternative material to the AM. Furthermore, this study provides an emerging approach for converting a two-dimensional electrospun nanofiber membrane to three-dimensional fiber networks that resemble the structure of the extracellular matrix (ECM).
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Sun M, Liu A, Yang X, Gong J, Yu M, Yao X, Wang H, He Y. 3D Cell Culture—Can It Be As Popular as 2D Cell Culture? ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202000066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Miao Sun
- The Affiliated Hospital of Stomatology School of Stomatology Zhejiang University School of Medicine and Key Laboratory of Oral Biomedical Research of Zhejiang Province Hangzhou Zhejiang 310000 China
| | - An Liu
- Department of Orthopaedic Surgery Second Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310000 China
| | - Xiaofu Yang
- The Affiliated Hospital of Stomatology School of Stomatology Zhejiang University School of Medicine and Key Laboratory of Oral Biomedical Research of Zhejiang Province Hangzhou Zhejiang 310000 China
| | - Jiaxing Gong
- The Affiliated Hospital of Stomatology School of Stomatology Zhejiang University School of Medicine and Key Laboratory of Oral Biomedical Research of Zhejiang Province Hangzhou Zhejiang 310000 China
| | - Mengfei Yu
- The Affiliated Hospital of Stomatology School of Stomatology Zhejiang University School of Medicine and Key Laboratory of Oral Biomedical Research of Zhejiang Province Hangzhou Zhejiang 310000 China
| | - Xinhua Yao
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province School of Mechanical Engineering Zhejiang University Hangzhou 310000 China
| | - Huiming Wang
- The Affiliated Hospital of Stomatology School of Stomatology Zhejiang University School of Medicine and Key Laboratory of Oral Biomedical Research of Zhejiang Province Hangzhou Zhejiang 310000 China
| | - Yong He
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province School of Mechanical Engineering Zhejiang University Hangzhou 310000 China
- State Key Laboratory of Fluid Power and Mechatronic Systems School of Mechanical Engineering Zhejiang University Hangzhou 310000 China
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Kade JC, Dalton PD. Polymers for Melt Electrowriting. Adv Healthc Mater 2021; 10:e2001232. [PMID: 32940962 DOI: 10.1002/adhm.202001232] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/27/2020] [Indexed: 12/13/2022]
Abstract
Melt electrowriting (MEW) is an emerging high-resolution additive manufacturing technique based on the electrohydrodynamic processing of polymers. MEW is predominantly used to fabricate scaffolds for biomedical applications, where the microscale fiber positioning has substantial implications in its macroscopic mechanical properties. This review gives an update on the increasing number of polymers processed via MEW and different commercial sources of the gold standard poly(ε-caprolactone) (PCL). A description of MEW-processed polymers beyond PCL is introduced, including blends and coated fibers to provide specific advantages in biomedical applications. Furthermore, a perspective on printer designs and developments is highlighted, to keep expanding the variety of processable polymers for MEW.
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Affiliation(s)
- Juliane C. Kade
- Department of Functional Materials in Medicine and Dentistry Bavarian Polymer Institute University Clinic Würzburg Pleicherwall 2 97070 Würzburg Germany
| | - Paul D. Dalton
- Department of Functional Materials in Medicine and Dentistry Bavarian Polymer Institute University Clinic Würzburg Pleicherwall 2 97070 Würzburg Germany
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