Directed assembly of carbon nanotubes on soft substrates for use as a flexible biosensor array

Juntae Koh, Mihye Yi, Byung Yang Lee, Tae Hyun Kim, Joohyung Lee, Young Min Jhon, Seunghun Hong

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

We have developed a method to selectively assemble and align carbon nanotubes (CNTs) on soft substrates for use as flexible biosensors. In this strategy, a thin oxide layer was deposited on soft substrates via low temperature plasma enhanced chemical vapor deposition, and a linker-free assembly process was applied on the oxide surface where the assembly of carbon nanotubes was guided by methyl-terminated molecular patterns on the oxide surface. The electrical characterization of the fabricated CNT devices exhibited a typical p-type gating effect and 1/f noise behavior. The bare oxide regions near CNTs were functionalized with glutamate oxidase to fabricate selective biosensors to detect two forms of glutamate substances existing in different situations: L-glutamic acid, a neurotransmitting material, and monosodium glutamate, a food additive.

Original languageEnglish
Article number505502
JournalNanotechnology
Volume19
Issue number50
DOIs
Publication statusPublished - 2008 Dec 17

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Directed assembly of carbon nanotubes on soft substrates for use as a flexible biosensor array'. Together they form a unique fingerprint.

Cite this