Vapor sensing characteristics of nanoelectromechanical chemical sensors functionalized using surface-initiated polymerization

Heather C. McCaig, Ed Myers, Nathan S Lewis, Michael L. Roukes

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Surface-initiated polymerization has been used to grow thick, uniform poly(methyl methacrylate) films on nanocantilever sensors. Cantilevers with these coatings yielded significantly greater sensitivity relative to bare devices as well as relative to devices that had been coated with drop-cast polymer films. The devices with surface-initiated polymer films also demonstrated high selectivity toward polar analytes. Surface-initiated polymerization can therefore provide a straightforward, reproducible method for large-scale functionalization of nanosensors.

Original languageEnglish
Pages (from-to)3728-3732
Number of pages5
JournalNano Letters
Volume14
Issue number7
DOIs
Publication statusPublished - Jul 9 2014

Fingerprint

Chemical sensors
polymerization
Vapors
Polymerization
vapors
Polymer films
Nanocantilevers
sensors
Nanosensors
polymers
Polymethyl Methacrylate
Polymethyl methacrylates
polymethyl methacrylate
casts
selectivity
coatings
Coatings
sensitivity
Sensors

Keywords

  • ATRP
  • Cantilever sensor
  • chemical vapor sensor
  • nanocantilever
  • nanomechanical resonator
  • surface-initiated polymerization

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering

Cite this

Vapor sensing characteristics of nanoelectromechanical chemical sensors functionalized using surface-initiated polymerization. / McCaig, Heather C.; Myers, Ed; Lewis, Nathan S; Roukes, Michael L.

In: Nano Letters, Vol. 14, No. 7, 09.07.2014, p. 3728-3732.

Research output: Contribution to journalArticle

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