Vapor sensing characteristics of nanoelectromechanical chemical sensors functionalized using surface-initiated polymerization.
basic_science · Level V
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- Record sourced from PubMed, PMID 24922358.
- Also identified by DOI 10.1021/nl500475b and PMC identifier 5297368.
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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.