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Open AccessArticle

Protein-Polymer Matrices with Embedded Carbon Nanotubes for Tissue Engineering: Regularities of Formation and Features of Interaction with Cell Membranes

1
Department of Physics, Saratov State University, Astrakhanskaya street 83, Saratov 410012, Russia
2
Laboratory of Biomedical Nanotechnology, I.M. Sechenov First Moscow State Medical University, Bolshaya Pirogovskaya street 2-4, Moscow 119991, Russia
3
Institute of Biomedical Systems, National Research University of Electronic Technology MIET, Shokin Square 1, Zelenograd, Moscow 124498, Russia
*
Author to whom correspondence should be addressed.
Materials 2019, 12(19), 3083; https://doi.org/10.3390/ma12193083
Received: 22 August 2019 / Revised: 12 September 2019 / Accepted: 17 September 2019 / Published: 21 September 2019
(This article belongs to the Special Issue Biomaterials and Implant Biocompatibility)
This paper reveals the mechanism of nanowelding a branched network of single-walled carbon nanotubes (SWCNTs) used as a framework for the formation of protein–polymer matrices with albumin, collagen, and chitosan. It is shown that the introduction of certain point defects into the structure of SWCNTs (single vacancy, double vacancy, Stone–Wales defect, and a mixed defect) allows us to obtain strong heating in defective regions as compared to ideal SWCNTs. The wavelengths at which absorption reaches 50% are determined. Non-uniform absorption of laser radiation along with inefficient heat removal in defective regions determines the formation of hot spots, in which nanowelding of SWCNTs is observed even at 0.36 nm between contacting surfaces. The regularities of formation of layered protein–polymer matrices and the features of their interaction with cell membrane are revealed. All studies are carried out in silico using high-precision quantum approaches. View Full-Text
Keywords: protein–polymer matrices; nanowelding; single-walled carbon nanotubes; point defects; absorption; laser radiation; cell membrane protein–polymer matrices; nanowelding; single-walled carbon nanotubes; point defects; absorption; laser radiation; cell membrane
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Slepchenkov, M.M.; Gerasimenko, A.Y.; Telyshev, D.V.; Glukhova, O.E. Protein-Polymer Matrices with Embedded Carbon Nanotubes for Tissue Engineering: Regularities of Formation and Features of Interaction with Cell Membranes. Materials 2019, 12, 3083.

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