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Article

Biocompatible Nanocomposites Based on Poly(styrene-block-isobutylene-block-styrene) and Carbon Nanotubes for Biomedical Application

1
Research Institute for Complex Issues of Cardiovascular Diseases, 650002 Kemerovo, Russia
2
Research Institute for Physical Chemical Problems of the Belarusian State University, 220030 Minsk, Belarus
3
Faculty of Chemistry, Belarusian State University, 220006 Minsk, Belarus
4
Institute of Regenerative Medicine, Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), 119991 Moscow, Russia
*
Author to whom correspondence should be addressed.
Polymers 2020, 12(9), 2158; https://doi.org/10.3390/polym12092158
Received: 14 September 2020 / Accepted: 18 September 2020 / Published: 22 September 2020
(This article belongs to the Special Issue Carbon Materials Modified Polymeric Composites)
In this study, we incorporated carbon nanotubes (CNTs) into poly(styrene-block-isobutylene-block-styrene) (SIBS) to investigate the physical characteristics of the resulting nanocomposite and its cytotoxicity to endothelial cells. CNTs were dispersed in chloroform using sonication following the addition of a SIBS solution at different ratios. The resultant nanocomposite films were analyzed by X-ray microtomography, optical and scanning electron microscopy; tensile strength was examined by uniaxial tension testing; hydrophobicity was evaluated using a sessile drop technique; for cytotoxicity analysis, human umbilical vein endothelial cells were cultured on SIBS–CNTs for 3 days. We observed an uneven distribution of CNTs in the polymer matrix with sporadic bundles of interwoven nanotubes. Increasing the CNT content from 0 wt% to 8 wt% led to an increase in the tensile strength of SIBS films from 4.69 to 16.48 MPa. The engineering normal strain significantly decreased in 1 wt% SIBS–CNT films in comparison with the unmodified samples, whereas a further increase in the CNT content did not significantly affect this parameter. The incorporation of CNT into the SIBS matrix resulted in increased hydrophilicity, whereas no cytotoxicity towards endothelial cells was noted. We suggest that SIBS–CNT may become a promising material for the manufacture of implantable devices, such as cardiovascular patches or cusps of the polymer heart valve. View Full-Text
Keywords: nanocomposites; carbon nanotubes; biocompatible materials; electrical conductivity; triblock copolymers nanocomposites; carbon nanotubes; biocompatible materials; electrical conductivity; triblock copolymers
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MDPI and ACS Style

Rezvova, M.A.; Yuzhalin, A.E.; Glushkova, T.V.; Makarevich, M.I.; Nikishau, P.A.; Kostjuk, S.V.; Klyshnikov, K.Y.; Matveeva, V.G.; Khanova, M.Y.; Ovcharenko, E.A. Biocompatible Nanocomposites Based on Poly(styrene-block-isobutylene-block-styrene) and Carbon Nanotubes for Biomedical Application. Polymers 2020, 12, 2158. https://doi.org/10.3390/polym12092158

AMA Style

Rezvova MA, Yuzhalin AE, Glushkova TV, Makarevich MI, Nikishau PA, Kostjuk SV, Klyshnikov KY, Matveeva VG, Khanova MY, Ovcharenko EA. Biocompatible Nanocomposites Based on Poly(styrene-block-isobutylene-block-styrene) and Carbon Nanotubes for Biomedical Application. Polymers. 2020; 12(9):2158. https://doi.org/10.3390/polym12092158

Chicago/Turabian Style

Rezvova, Maria A., Arseniy E. Yuzhalin, Tatiana V. Glushkova, Miraslau I. Makarevich, Pavel A. Nikishau, Sergei V. Kostjuk, Kirill Yu. Klyshnikov, Vera G. Matveeva, Mariam Yu. Khanova, and Evgeny A. Ovcharenko. 2020. "Biocompatible Nanocomposites Based on Poly(styrene-block-isobutylene-block-styrene) and Carbon Nanotubes for Biomedical Application" Polymers 12, no. 9: 2158. https://doi.org/10.3390/polym12092158

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