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

Jiheng Zhao, Ali Hashmi, Jie Xu, Wei Xue

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


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
Issue number24
StatePublished - Jun 11 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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