Laminated, microfluidic-integrated carbon nanotube based biosensors

Ju Nie Tey, I. Putu Mahendra Wijaya, Zongbin Wang, Wei Hau Goh, Alagappan Palaniappan, Subodh G. Mhaisalkar, Isabel Rodriguez, Simon Dunham, John A. Rogers

Research output: Contribution to journalArticlepeer-review

Abstract

In this communication, a laminated, flexible, microfluidic-integrated, all CNT based liquid-gated transistor and biosensor are reported that comprises single walled CNTs for both the semiconducting channel as well as the contact electrodes. The proposed architecture eliminates the need for lithography, electrode definition processes, and also circumvents substrate surface compatibility issues. Real-time detection of 1 pM poly-L-lysine in a liquid-gated transistor comprising only two materials, single walled CNTs and polydimethoxysilane substrate with microfluidic channel, is demonstrated.

Original languageEnglish (US)
Article number013107
JournalApplied Physics Letters
Volume94
Issue number1
DOIs
StatePublished - 2009
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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