Application of a 2D Molybdenum Telluride in SERS Detection of Biorelevant Molecules; ACS Applied Materials and Interfaces; Vol. 12, iss. 42

Application of a 2D Molybdenum Telluride in SERS Detection of Biorelevant Molecules; ACS Applied Materials and Interfaces; Vol. 12, iss. 42

Opis bibliograficzny
Parent link:ACS Applied Materials and Interfaces
Vol. 12, iss. 42.— 2020.— [P. 47774–47783]
Korporacja: Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий
Kolejni autorzy: Fraser J. P. James, Postnikov P. S. Pavel Sergeevich, Milyutina (Miliutina) E. V. Elena Vadimovna, Kolska Z. Zdenka, Valiev R. R. Rashid Rinatovich, Svorcik V. Vaclav, Lyutakov O. Oleksy, Ganin A. Y. Alexey, Guselnikova O. A. Olga Andreevna
Streszczenie:Title screen
Two-dimensional (2D) transition-metal dichalcogenides have become promising candidates for surface-enhanced Raman spectroscopy (SERS), but currently very few examples of detection of relevant molecules are available. Herein, we show the detection of the lipophilic disease marker ?-sitosterol on few-layered MoTe2 films. The chemical vapor deposition (CVD)-grown films are capable of nanomolar detection, exceeding the performance of alternative noble-metal surfaces. We confirm that the enhancement occurs through the chemical enhancement (CE) mechanism via formation of a surface–analyte complex, which leads to an enhancement factor of ?104, as confirmed by Fourier transform infrared (FTIR), UV–vis, and cyclic voltammetry (CV) analyses and density functional theory (DFT) calculations. Low values of signal deviation over a seven-layered MoTe2 film confirms the homogeneity and reproducibility of the results in comparison to noble-metal substrate analogues. Furthermore, ?-sitosterol detection within cell culture media, a minimal loss of signal over 50 days, and the opportunity for sensor regeneration suggest that MoTe2 can become a promising new SERS platform for biosensing.
Режим доступа: по договору с организацией-держателем ресурса
Język:angielski
Wydane: 2020
Hasła przedmiotowe:
электронный ресурс
труды учёных ТПУ
MoTe2
SERS
sensing
chemical enhancement
β-sitosterol
Dostęp online:https://doi.org/10.1021/acsami.0c11231
Format: Elektroniczne Rozdział
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664300

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