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Savelyev AG, Sochilina AV, Akasov RA, Mironov AV, Kapitannikova AY, Borodina TN, Sholina NV, Khaydukov KV, Zvyagin AV, Generalova AN, Khaydukov EV. Facile Cell-Friendly Hollow-Core Fiber Diffusion-Limited Photofabrication. Front Bioeng Biotechnol 2021; 9:783834. [PMID: 34926429 PMCID: PMC8678487 DOI: 10.3389/fbioe.2021.783834] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 11/03/2021] [Indexed: 11/13/2022] Open
Abstract
Bioprinting emerges as a powerful flexible approach for tissue engineering with prospective capability to produce tissue on demand, including biomimetic hollow-core fiber structures. In spite of significance for tissue engineering, hollow-core structures proved difficult to fabricate, with the existing methods limited to multistage, time-consuming, and cumbersome procedures. Here, we report a versatile cell-friendly photopolymerization approach that enables single-step prototyping of hollow-core as well as solid-core hydrogel fibers initially loaded with living cells. This approach was implemented by extruding cell-laden hyaluronic acid glycidyl methacrylate hydrogel directly into aqueous solution containing free radicals generated by continuous blue light photoexcitation of the flavin mononucleotide/triethanolamine photoinitiator. Diffusion of free radicals from the solution to the extruded structure initiated cross-linking of the hydrogel, progressing from the structure surface inwards. Thus, the cross-linked wall is formed and its thickness is limited by penetration of free radicals in the hydrogel volume. After developing in water, the hollow-core fiber is formed with centimeter range of lengths. Amazingly, HaCaT cells embedded in the hydrogel successfully go through the fabrication procedure. The broad size ranges have been demonstrated: from solid core to 6% wall thickness of the outer diameter, which was variable from sub-millimeter to 6 mm, and Young's modulus ∼1.6 ± 0.4 MPa. This new proof-of-concept fibers photofabrication approach opens lucrative opportunities for facile three-dimensional fabrication of hollow-core biostructures with controllable geometry.
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Affiliation(s)
- Alexander G Savelyev
- Federal Scientific Research Centre "Crystallography and Photonics" Russian Academy of Sciences, Moscow, Russia.,Center of Biomedical Engineering, Institute of Molecular Medicine, Sechenov University, Moscow, Russia
| | - Anastasia V Sochilina
- Federal Scientific Research Centre "Crystallography and Photonics" Russian Academy of Sciences, Moscow, Russia.,Shemyakin-Ovchinnikov Institute of Bioorganic Сhemistry RAS, Moscow, Russia
| | - Roman A Akasov
- Federal Scientific Research Centre "Crystallography and Photonics" Russian Academy of Sciences, Moscow, Russia.,Center of Biomedical Engineering, Institute of Molecular Medicine, Sechenov University, Moscow, Russia.,Shemyakin-Ovchinnikov Institute of Bioorganic Сhemistry RAS, Moscow, Russia
| | - Anton V Mironov
- Federal Scientific Research Centre "Crystallography and Photonics" Russian Academy of Sciences, Moscow, Russia
| | - Alina Yu Kapitannikova
- Center of Biomedical Engineering, Institute of Molecular Medicine, Sechenov University, Moscow, Russia
| | - Tatiana N Borodina
- Federal Scientific Research Centre "Crystallography and Photonics" Russian Academy of Sciences, Moscow, Russia
| | - Natalya V Sholina
- Federal Scientific Research Centre "Crystallography and Photonics" Russian Academy of Sciences, Moscow, Russia.,Center of Biomedical Engineering, Institute of Molecular Medicine, Sechenov University, Moscow, Russia
| | - Kirill V Khaydukov
- Federal Scientific Research Centre "Crystallography and Photonics" Russian Academy of Sciences, Moscow, Russia
| | - Andrei V Zvyagin
- Center of Biomedical Engineering, Institute of Molecular Medicine, Sechenov University, Moscow, Russia.,Shemyakin-Ovchinnikov Institute of Bioorganic Сhemistry RAS, Moscow, Russia.,MQ Photonics Centre, Faculty of Science and Engineering, Macquarie University, Sydney, NSW, Australia
| | - Alla N Generalova
- Federal Scientific Research Centre "Crystallography and Photonics" Russian Academy of Sciences, Moscow, Russia.,Shemyakin-Ovchinnikov Institute of Bioorganic Сhemistry RAS, Moscow, Russia
| | - Evgeny V Khaydukov
- Federal Scientific Research Centre "Crystallography and Photonics" Russian Academy of Sciences, Moscow, Russia.,Center of Biomedical Engineering, Institute of Molecular Medicine, Sechenov University, Moscow, Russia.,Shemyakin-Ovchinnikov Institute of Bioorganic Сhemistry RAS, Moscow, Russia
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Gautam L, Warkar SG, Ahmad SI, Kant R, Jain M. A review on carboxylic acid cross‐linked polyvinyl alcohol: Properties and applications. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25849] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Leela Gautam
- Department of Applied Chemistry Delhi Technological University New Delhi India
- Department of Chemistry Zakir Husain Delhi College (University of Delhi) New Delhi India
| | - Sudhir G. Warkar
- Department of Applied Chemistry Delhi Technological University New Delhi India
| | - Syed Ishraque Ahmad
- Department of Chemistry Zakir Husain Delhi College (University of Delhi) New Delhi India
| | - Ravi Kant
- Department of Chemistry Zakir Husain Delhi College (University of Delhi) New Delhi India
| | - Manish Jain
- Department of Applied Chemistry Delhi Technological University New Delhi India
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Sharma D, Saha S, Satapathy BK. Recent advances in polymer scaffolds for biomedical applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 33:342-408. [PMID: 34606739 DOI: 10.1080/09205063.2021.1989569] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The review provides insights into current advancements in electrospinning-assisted manufacturing for optimally designing biomedical devices for their prospective applications in tissue engineering, wound healing, drug delivery, sensing, and enzyme immobilization, and others. Further, the evolution of electrospinning-based hybrid biomedical devices using a combined approach of 3 D printing and/or film casting/molding, to design dimensionally stable membranes/micro-nanofibrous assemblies/patches/porous surfaces, etc. is reported. The influence of various electrospinning parameters, polymeric material, testing environment, and other allied factors on the morphological and physico-mechanical properties of electrospun (nano-/micro-fibrous) mats (EMs) and fibrous assemblies have been compiled and critically discussed. The spectrum of operational research and statistical approaches that are now being adopted for efficient optimization of electrospinning process parameters so as to obtain the desired response (physical and structural attributes) has prospectively been looked into. Further, the present review summarizes some current limitations and future perspectives for modeling architecturally novel hybrid 3 D/selectively textured structural assemblies, such as biocompatible, non-toxic, and bioresorbable mats/scaffolds/membranes/patches with apt mechanical stability, as biological substrates for various regenerative and non-regenerative therapeutic devices.
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Affiliation(s)
- Deepika Sharma
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, India
| | - Sampa Saha
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, India
| | - Bhabani K Satapathy
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, India
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Liang K, Zhou Y, Ji Y. Full biodegradable elastomeric nanocomposites fabricated by chitin nanocrystal and poly(caprolactone-diol citrate) elastomer. J BIOACT COMPAT POL 2019. [DOI: 10.1177/0883911519881728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Chitin nanocrystal is a biocompatible and biodegradable nanofiller, with great potential in enhancing the mechanical and biological properties of polymers. Poly(caprolactone-diol citrate) is a kind of citrate-based biodegradable elastomer prepared by an additive-free melt polycondensation of polycaprolactone-diol and citric acid coupled with subsequent thermocuring. Here, a facile casting/evaporation method was utilized to prepare full biodegradable poly(caprolactone-diol citrate)/chitin nanocrystal nanocomposites, and their structure and properties were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, uniaxial tensile test, dynamic mechanical analysis, surface wettability and swelling analysis, thermogravimetric analysis, in vitro degradation, and cytocompatibility test. The results showed the chitin nanocrystals were uniformly distributed in the poly(caprolactone-diol citrate) matrix; with increasing chitin nanocrystal loading, the tensile modulus and strength significantly increased; furthermore, the incorporation of chitin nanocrystals endowed the poly(caprolactone-diol citrate) with more hydrophilicity, lower swelling in phosphate buffered saline solution, slow degradation rate, and greatly improved cytocompatibility. Thus, the chitin nanocrystal was a good bio-based nanofiller that could be used to tune the properties of poly(caprolactone-diol citrate) degradable bioelastomer.
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Affiliation(s)
- Kai Liang
- Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Jinan, China
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, China
| | - Yajing Zhou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai, China
| | - Yali Ji
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai, China
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