Nanotech 2001 Vol. 1
Nanotech 2001 Vol. 1
Technical Proceedings of the 2001 International Conference on Modeling and Simulation of Microsystems

Applications: MEMS, Sensors Chapter 7

A Novel Polymer Nanofiber Interface for Chemical and Biochemical Sensor Applications

Authors: S.J. Kwoun, R.M. Lee, B. Han and F.K. Ko

Affilation: Drexel University, United States

Pages: 338 - 341

Keywords: nanofiber, piezoelectric sensors, quartz crystal microbalance, TSM chemical sensor

Polymer thin films are used extensively as a chemically sensing medium in variety types of acoustic sensors. It is well known that the sensitivity of a sensing film is proportional to the surface area of the film per unit mass. In our research we have studied the feasibility of using thin polymeric films made of nanofibers (NFs) as novel sensor interface. Thin NF films have surface area approximately one to two orders of the magnitude larger than continuous films. The NF films made of Poly-Lactic Acid-Co-Glycolic Acid (PLAGA) polymers were studied with Thickness-Shear Mode (TSM) resonator operating at 10 MHz. The response of the NF sensor to gaseous and liquid media under various ambient conditions was studied in details.

ISBN: 0-9708275-0-4
Pages: 638