Аннотация:
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. © 2019 by the authors.
Ключевые слова:
Absorption; Cell membrane; Laser radiation; Nanowelding; Point defects; Protein-polymer matrices; Single-walled carbon nanotubes
Absorption; Cell engineering; Cell membranes; Cytology; Laser radiation; Nanotubes; Point defects; Proteins; Tissue engineering; Branched network; Contacting surfaces; Nano-welding; Protein polymers; Quantum approach; Single vacancies; Single-walled carbon nanotube (SWCNTs); Stone-Wales defects; Single-walled carbon nanotubes (SWCN)
Slepchenkov M. M.
Gerasimenko A. Yu. Aleksandr Yuryevich 1983-
Tely'shev D. V. Dmitrij Viktorovich 1984-
Glukhova O. E. Ol`ga Evgenyevna 1970-
Слепченков М. М.
Герасименко А. Ю. Александр Юрьевич 1983-
Телышев Д. В. Дмитрий Викторович 1984-
Глухова О. Е. Ольга Евгеньевна 1970-
Protein-polymer matrices with embedded carbon nanotubes for tissue engineering: Regularities of formation and features of interaction with cell membranes
Protein-polymer matrices with embedded carbon nanotubes for tissue engineering: Regularities of formation and features of interaction with cell...
Текст визуальный непосредственный
Materials
MDPI AG
Vol.12, Issue19 Num.3083
2019
Статья
Absorption Cell membrane Laser radiation Nanowelding Point defects Protein-polymer matrices Single-walled carbon nanotubes
Absorption Cell engineering Cell membranes Cytology Laser radiation Nanotubes Point defects Proteins Tissue engineering Branched network Contacting surfaces Nano-welding Protein polymers Quantum approach Single vacancies Single-walled carbon nanotube (SWCNTs) Stone-Wales defects Single-walled carbon nanotubes (SWCN)
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. © 2019 by the authors.