Cells have the ability to break and chemically modify GaP(As) nanowires.

Autor: Shmakov SV; Faculty of Physics, St Petersburg State University, Universitetskaya Emb. 7-9, 199034 St Petersburg, Russia. bolshakov@live.com.; Alferov University, Khlopina 8/3, St Petersburg, 194021, Russia. antbuk.fiztek@gmail.com., Sosnovitskaia ZP; Alferov University, Khlopina 8/3, St Petersburg, 194021, Russia. antbuk.fiztek@gmail.com., Makhneva EA; Alferov University, Khlopina 8/3, St Petersburg, 194021, Russia. antbuk.fiztek@gmail.com., Anikina MA; Alferov University, Khlopina 8/3, St Petersburg, 194021, Russia. antbuk.fiztek@gmail.com.; Moscow Center for Advanced Studies, Kulakova str. 20, Moscow 123592, Russia., Kuznetsov A; Alferov University, Khlopina 8/3, St Petersburg, 194021, Russia. antbuk.fiztek@gmail.com.; Moscow Center for Advanced Studies, Kulakova str. 20, Moscow 123592, Russia., Kondratev VM; Alferov University, Khlopina 8/3, St Petersburg, 194021, Russia. antbuk.fiztek@gmail.com.; Moscow Center for Advanced Studies, Kulakova str. 20, Moscow 123592, Russia., Solomonov N; Alferov University, Khlopina 8/3, St Petersburg, 194021, Russia. antbuk.fiztek@gmail.com., Boitsov VM; Alferov University, Khlopina 8/3, St Petersburg, 194021, Russia. antbuk.fiztek@gmail.com., Fedorov VV; Alferov University, Khlopina 8/3, St Petersburg, 194021, Russia. antbuk.fiztek@gmail.com., Mukhin IS; Alferov University, Khlopina 8/3, St Petersburg, 194021, Russia. antbuk.fiztek@gmail.com.; Higher School of Engineering Physics, Peter the Great Saint Petersburg Polytechnic University, Politekhnicheskaya 29, Saint Petersburg 195251, Russia., Bukatin AS; Alferov University, Khlopina 8/3, St Petersburg, 194021, Russia. antbuk.fiztek@gmail.com.; Institute for Analytical Instrumentation of the RAS, St Petersburg, 190103, Russia., Bolshakov AD; Faculty of Physics, St Petersburg State University, Universitetskaya Emb. 7-9, 199034 St Petersburg, Russia. bolshakov@live.com.; Alferov University, Khlopina 8/3, St Petersburg, 194021, Russia. antbuk.fiztek@gmail.com.; Moscow Center for Advanced Studies, Kulakova str. 20, Moscow 123592, Russia.; Laboratory of Advanced Functional Materials, Yerevan State University, Yerevan 0025, Armenia.
Jazyk: angličtina
Zdroj: Nanoscale [Nanoscale] 2024 Nov 13; Vol. 16 (44), pp. 20752-20764. Date of Electronic Publication: 2024 Nov 13.
DOI: 10.1039/d4nr02513j
Abstrakt: Semiconductor nanowires are known for their unusual geometry, providing unique electronic and optical properties. Substrates with vertical nanowires have highly non-uniform surfaces, which are attractive in terms of the study of live cells that can interact and be labeled with the wires. Despite several previous works studying cells cultivated over nanowires, questions regarding cell rupture and interaction with the wires remain open. Here, we demonstrate that nanowires can not only penetrate the cell membrane, but even be broken by a cell and trapped inside it. Even after mechanical poration of the membrane manifested by the efficient transfection and delivery of a fluorescent protein encoding plasmid, the cells are found to be viable for 7 days of incubation. The endocytosed wires are then aligned along the nucleus periphery and ousted to pseudopodia with the formation of nanowire-rich fibrils as a result of complex intracellular processes. We demonstrate that endocytosis of the wires may lead to their chemical modification manifested by the red shift of the luminescence spectra. Analysis of the wires' breakdown reveals that the cells can generate forces as high as several hundreds of nN. Using this work, we demonstrate several phenomena with the potential to be used in intriguing methods for intracellular visualization and the development of biointerfaces.
Databáze: MEDLINE
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