Field Effect Biosensing Platform Based on 2D α-MoO3

被引：149

作者：

Balendhran, Sivacarendran ^{[1
,2
,3
]}

Walia, Sumeet ^{[1
,3
]}

Alsaif, Manal ^{[1
]}

Nguyen, Emily P. ^{[1
]}

Ou, Jian Zhen ^{[1
]}

Zhuiykov, Serge ^{[2
]}

Sriram, Sharath ^{[1
,3
]}

Bhaskaran, Madhu ^{[1
,3
]}

Kalantar-zadeh, Kourosh ^{[1
]}

机构：

[1] RMIT Univ, Sch Elect & Comp Engn, Melbourne, Vic, Australia

[2] CSIRO, Div Engn & Mat Sci, Highett, Vic, Australia

[3] RMIT Univ, Funct Mat & Microsyst Res Grp, Melbourne, Vic, Australia

来源：

ACS NANO | 2013年 / 7卷 / 11期

基金：

澳大利亚研究理事会;

关键词：

two-dimensional materials; MoO3; bovine serum albumin; biosensing; exfoliation; BOVINE SERUM-ALBUMIN; TRANSITION-METAL OXIDES; THIN-FILMS; MOLYBDENUM TRIOXIDE; EXFOLIATION; ELECTRONICS; ADSORPTION;

D O I：

10.1021/nn403241f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Electrical-based biosensing platforms offer ease of fabrication and simple sensing solutions. Recently, two-dimensional (2D) semiconductors have been proven to be excellent for the fabrication of field effect transistors (FETs) due to their large transconductance, which can be efficiently used for developing sensitive bioplatforms. We present a 2D molybdenum trioxide (MoO3) FIT based biosensing platform, using bovine serum albumin as a model protein. The conduction channel is a nanostructured film made of 2D alpha-MoO3 nanoflakes, with the majority of nanoflake thicknesses being equal to or less than 2.8 nm. The response time is impressively low (less than 10 s), which is due to the high permittivity of the 2D alpha-MoO3 nanoflakes. The system offers a competitive solution for future biosensing applications.

引用

页码：9753 / 9760

页数：8

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