Ling-Yan W, Ai-Min L, Hamreh S. Gamma-butyrolactone drug detection by Al-doped BC
3 nanotubes: A density functional theory study.
J Mol Graph Model 2020;
99:107632. [PMID:
32417724 DOI:
10.1016/j.jmgm.2020.107632]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 04/20/2020] [Accepted: 05/01/2020] [Indexed: 11/29/2022]
Abstract
Potential application of a pristine and Al-doped BC3 nanotube (Al-BC3NT) is explored in detection of gamma-butyrolactone (GBL) drug using DFT calculations. The GBL drug weakly adsorbed of the pristine BC3NT with adsorption energy (Ead) of -11.7 kcal/mol. The electronic properties of pristine BC3NT were not altered sensibly by the GBL adsorption, indicating that this tube is not a sensor. By Al-doping in the structure of BC3NT, the GBL interaction was strengthened (Ead = -21.8 kcal/mol). The Eg of Al-BC3NT dramatically declined from 2.38 to 1.93 eV, by GBL interaction. The electrical conductance of GBL/Al-BC3NT was 681 times higher than that of the bare Al-BC3NT. Thus, the Al-BC3NT yields an electronic signal after the GBL drug adsorption, being a promising electronic sensor. The recovery time for GBL drug desorption from the Al-BC3NT surface was predicted to be short (0.9 s). The interaction between the GBL and Al-BC3NT was strengthened in the ethanol solvent, and the Ead became more negative (-28.9 kcal/mol).
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