Quartz microbalance studies of solvent and ion transport in thin polymer films in sensor applications of the QCM

Steven J. Lasky, Howard R. Meyer, Daniel Buttry

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

The quartz crystal microbalance (QCM) has been applied to the study of mass changes within thin polymer films immobilized on the surface of the QCM. These studies have been in two contexts: 1) the determination of compositional changes within such thin films which have been subjected to electrochemical oxidation or reduction (i.e., injection or removal of charge), which necessarily causes ion transport to maintain electroneutrality and frequently causes solvent transport as well, and 2) the development of sensor elements capable of transducing chemical events, such as binding of an analyte to a host molecule immobilized within the thin film, into electrical signals. The focus is on the fundamental chemical and physical processes which can occur in such situations and their influence on the resonant frequency and conductance spectrum of the QCM/thin-film composite resonator. Also discussed is the use of the conductance spectrum as a diagnostic tool for the evaluation of changes in the viscoelastic properties of the thin film which might be induced, for example, by solvent incorporation into the film.

Original languageEnglish (US)
Title of host publicationTechnical Digest, 1990 Solid-State Sensor and Actuator Workshop
Place of PublicationPiscataway, NJ, United States
PublisherPubl by IEEE
Pages1-4
Number of pages4
Publication statusPublished - 1990
Externally publishedYes
Event1990 IEEE Solid-State Sensor and Actuator Workshop - Hilton Head Island, SC, USA
Duration: Jun 4 1990Jun 7 1990

Other

Other1990 IEEE Solid-State Sensor and Actuator Workshop
CityHilton Head Island, SC, USA
Period6/4/906/7/90

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Lasky, S. J., Meyer, H. R., & Buttry, D. (1990). Quartz microbalance studies of solvent and ion transport in thin polymer films in sensor applications of the QCM. In Technical Digest, 1990 Solid-State Sensor and Actuator Workshop (pp. 1-4). Piscataway, NJ, United States: Publ by IEEE.