Smartphone-based portable biosensing system using impedance measurement with printed electrodes for 2,4,6-trinitrotoluene (TNT) detection

Biosensors & Bioelectronics
Diming ZhangQingjun Liu

Abstract

Rapid, sensitive, selective and portable detection of 2,4,6-trinitrotoluene (TNT) is in high demand for public safety and environmental monitoring. In this study, we reported a smartphone-based system using impedance monitoring for TNT detection. The screen-printed electrodes modified with TNT-specific peptides were used as disposable a biosensor to produce impedance responses to TNT. The responses could be monitored by a hand-held device and send out to smartphone through Bluetooth. Then, the smartphone was used to display TNT responses in real time and report concentration finally. In the measurement, the system was demonstrated to detect TNT at concentration as low as 10(-6)M and distinguish TNT versus different chemicals in high specificity. Thus, the smartphone-based biosensing platform provided a convenient and efficient approach to design portable instruments for chemical detections such as TNT recognition.

References

Mar 28, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Justyn W JaworskiSeung-Wuk Lee
Apr 23, 2008·The Analyst·Richard G SmithStephen Nicklin
Feb 4, 2010·Lab on a Chip·Zhihong NieGeorge M Whitesides
Jan 24, 2012·Talanta·J Sarah CaygillSeamus P J Higson
Jul 28, 2012·ACS Nano·Bhaskara V ChikkaveeraiahXiaoyuan Chen
Nov 16, 2012·The Analyst·J Sarah CaygillSéamus P J Higson
May 22, 2013·Lab on a Chip·Peter B LillehojChih-Ming Ho
Apr 16, 2014·BioMed Research International·Yuan Liu, Guixiu Shi

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Citations

Mar 10, 2016·Biotechnology Advances·L KwonB T Cunningham
Aug 16, 2015·Biosensors & Bioelectronics·Jayoung KimJoseph Wang
Jan 15, 2016·Journal of Laboratory Automation·J M PearceC L Heldt
Oct 18, 2018·The Analyst·Xiwei HuangJinhong Guo
Mar 7, 2020·The Analyst·Wenhao ZhaoJinhong Guo
Jul 6, 2019·Biomedical Microdevices·M Anne Sawhney, R S Conlan
Nov 2, 2019·Biosensors·Paloma Yáñez-SedeñoJosé Manuel Pingarrón
Sep 16, 2020·Analytical Methods : Advancing Methods and Applications·Marta Jarczewska, Elżbieta Malinowska
Jun 12, 2020·Luminescence : the Journal of Biological and Chemical Luminescence·Feifei ZhaoChangli Lü
Jan 15, 2019·Biosensors & Bioelectronics·Zijian ZhaoMeng Lu
Nov 9, 2016·Biosensors & Bioelectronics·Xinhao WangGang Logan Liu
Nov 17, 2020·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Jin Wang
Aug 29, 2017·ACS Combinatorial Science·Mina OkochiKiyoshi Toko
May 17, 2018·ACS Sensors·Steven M Russell, Roberto de la Rica
Apr 14, 2020·Bioconjugate Chemistry·Takumi KomikawaMina Okochi
Nov 18, 2021·Analytical Methods : Advancing Methods and Applications·Tong ShuMichael J Serpe

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