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Vapor Sensing Characteristics of Nanoelectromechanical Chemical Sensors Functionalized Using Surface-Initiated Polymerization

McCaig, Heather C. and Myers, Ed and Lewis, Nathan S. and Roukes, Michael L. (2014) Vapor Sensing Characteristics of Nanoelectromechanical Chemical Sensors Functionalized Using Surface-Initiated Polymerization. Nano Letters, 14 (7). pp. 3728-3732. ISSN 1530-6984. PMCID PMC5297368. http://resolver.caltech.edu/CaltechAUTHORS:20140814-112736743

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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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/nl500475bDOIArticle
http://pubs.acs.org/doi/abs/10.1021/nl500475bPublisherArticle
http://pubs.acs.org/doi/suppl/10.1021/nl500475bPublisherSupporting Information
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5297368PubMed CentralArticle
ORCID:
AuthorORCID
Lewis, Nathan S.0000-0001-5245-0538
Roukes, Michael L.0000-0002-2916-6026
Additional Information:© 2014 American Chemical Society. Received: February 6, 2014; Revised: June 10, 2014; Published: June 12, 2014. We gratefully acknowledge assistance from Derrick Chi in fabrication of the NEMS devices, from Xinchang Zhang for development of the NEMS control electronics, the Caltech Geology and Planetary Science Analytical Facility and the Kavli Nanoscience Institute for SEM imaging, and from Bruce S. Brunschwig and the Molecular Materials Research Center for the use of their ellipsometer. We acknowledge support for this work from DARPA/MTO-MGA through Grant NBCH1050001, and from the Department of Homeland Security, Centers of Excellence, Agreement 2008-ST-061-ED0002.
Group:Kavli Nanoscience Institute
Funders:
Funding AgencyGrant Number
Defense Advanced Research Projects Agency (DARPA)NBCH1050001
Department of Homeland Security2008-ST-061- ED0002
PubMed Central ID:PMC5297368
Record Number:CaltechAUTHORS:20140814-112736743
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20140814-112736743
Official Citation:Vapor Sensing Characteristics of Nanoelectromechanical Chemical Sensors Functionalized Using Surface-Initiated Polymerization Heather C. McCaig, Ed Myers, Nathan S. Lewis, and Michael L. Roukes Nano Letters 2014 14 (7), 3728-3732
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:48562
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:14 Aug 2014 20:22
Last Modified:03 Nov 2017 03:25

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