Bio-chemical sensor using polyaniline nanofibers for sensing amino-group type of gas

Author

Yao, Da-Jeng ; Yang, Yong-Ruei

Author_Institution

Inst. of Microelectromech. Syst., Nat. Tsing Hua Univ., Hsinchu

fYear

0

fDate

0-0 0

Firstpage

763

Lastpage

767

Abstract

Traditionally, polyaniline was used for sensing ammonia (NH₃) gas due to the change of conductivity. By integrated with surface acoustic wave sensor (SAW) for sensing the amino-group type of gas, a novel bio-chemical sensor had been developed. The mechanism of the SAW sensor is that the change of gravity results in the change of physical characteristics of SAW sensor. In order to increase the absorbability of the polymer, we use the nano structure to increase the surface area ratio that can make gaseous molecular being absorbed onto the nano structure quickly. Three kinds of solvent vapor were tested: ammonium hydroxide, triethylamine, and acetone

Keywords

biochemistry; biotechnology; chemical sensors; polymers; NH₃; acetone; amino-group type of gas; ammonium hydroxide; biochemical sensor; polyaniline nanofibers; surface acoustic wave sensor; triethylamine; Acoustic sensors; Acoustic waves; Biosensors; Conductivity; Gas detectors; Gravity; Polymers; Sensor phenomena and characterization; Solvents; Surface acoustic waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Robotics and Biomimetics (ROBIO). 2005 IEEE International Conference on

Conference_Location

Shatin

Print_ISBN

0-7803-9315-5

Type

conf

DOI

10.1109/ROBIO.2005.246365

Filename

1708843