Publication: Mesoporous silicon nanoparticles covered with PEG molecules by mechanical grinding in aqueous suspensions
Дата
2022
Авторы
Petukhov, D. I.
Eremina, A. S.
Kargina, Y. V.
Kharin, A. Y.
Timoshenko, V. Y.
Еремина, Анна Сергеевна
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Аннотация
© 2021We propose a one-step procedure to stabilize mesoporous silicon nanoparticles in aqueous solutions by polyethylene glycol (PEG) coating during grinding in a planetary ball mill. The milling is done in aqueous medium that allows us to directly obtain the aqueous suspension of PEGylated nanoparticles. The prepared nanoparticles are investigated by means of the scanning electron microscopy, energy dispersive X-ray spectroscopy, low-temperature nitrogen sorption, dynamic light scattering, Fourier transform infrared spectroscopy, Raman and photoluminescence spectroscopy, which reveal the nanoparticle size of 50–100 nm, preservation of the nanocrystallinity and mesopores. The PEGylated nanoparticles are found to be stable in aqueous solution for at least 24 h. The proposed PEGylation method can be used to control the physical properties and stability of mesoporous silicon nanoparticles for biomedical applications.
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Цитирование
Mesoporous silicon nanoparticles covered with PEG molecules by mechanical grinding in aqueous suspensions / Petukhov, D.I. [et al.] // Microporous and Mesoporous Materials. - 2022. - 331. - 10.1016/j.micromeso.2021.111641
URI
https://www.doi.org/10.1016/j.micromeso.2021.111641
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https://openrepository.mephi.ru/handle/123456789/28627
https://www.scopus.com/record/display.uri?eid=2-s2.0-85121594967&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000750578600001
https://openrepository.mephi.ru/handle/123456789/28627