A compact lab-on-a-chip nanosensor for glycerol detection

Jiheng Zhao, Ali Hashmi, Jie Xu, Wei Xue

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

Real-time monitoring of glycerol concentration has significant meaning in many lab-on-a-chip applications. The existing sensors for glycerol detection have complicated fabrication and testing procedures and are not truly compatible with microfluidic systems for on-site detection. In this study, we explore the possibility of using an integrated single-walled carbon nanotubes nanosensor for glycerol detection. Our device enables real-time, in-channel detection of the concentration of static or flowing aqueous glycerol solutions. Sensor resistance is found to increase with an increasing glycerol-to-water weight ratio and is sensitive to flow velocity. We also highlight the sensing mechanisms for both conditions.

Original languageEnglish (US)
Article number243109
JournalApplied Physics Letters
Volume100
Issue number24
DOIs
StatePublished - Jun 11 2012

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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