Single-molecule Aflatoxin B1 Sensing via Pyrrole-based Molecular Quantum Dot

被引：4

作者：

Mo, Fabrizio ^{[1
]}

Spano, Chiara Elfi ^{[1
]}

Ardesi, Yuri ^{[1
]}

Roch, Massimo Ruo ^{[1
]}

Piccinini, Gianluca ^{[1
]}

Graziano, Mariagrazia ^{[2
]}

机构：

[1] Politecn Torino, Dept Elect & Telecommun, Turin, Italy

[2] Politecn Torino, Dept Appl Sci & Technol, Turin, Italy

来源：

2022 IEEE 22ND INTERNATIONAL CONFERENCE ON NANOTECHNOLOGY (NANO) | 2022年

关键词：

POLYPYRROLE;

D O I：

10.1109/NANO54668.2022.9928694

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We investigate through ab-initio simulations the gold-8PyrroleDiThiol-gold (Au-8PyDT) molecular quantum dot as an amperometric single-molecule sensor for the aflatoxin B1 (AFB1) detection. We study the adsorption of AFB1 onto the Au-8PyDT and we analyze the transport characteristics for the most probable adsorption configuration. We find that a significant current modulation occurs, with around 80% of current decrease in presence of AFB1. Interestingly, the investigated sensor exhibits a voltage-dependent response, that we motivate through a transmission properties analysis. Our results, considering the synthesis simplicity of PolyPyrroles and their non-toxicity, motivate future research efforts in this direction.

引用

页码：153 / 156

页数：4

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