Title :
ESA-based in-fiber nanocavity for hydrogen-peroxide detection
Author :
Del Villar, Ignacio ; Matías, Ignacio R. ; Arregui, Francisco J. ; Claus, Richard O.
Author_Institution :
Electr. & Electron. Eng. Dept., Public Univ. of Navarra, Pamplona, Spain
fDate :
3/1/2005 12:00:00 AM
Abstract :
A fiber-optic sensor sensitive to hydrogen peroxide has been designed based on the electrostatic layer-by-layer self-assembly method. Prussian blue has been deposited in a polymeric structure formed by Poly(allylamine hydrochloride) and poly(acrylic acid). The concentration that can be detected range between 10-6-10-3 M, and recovery of the sensor after immersion into a reductive agent was demonstrated. The response of the sensor is independent of the pH for values that range between 4-7.4. Some rules for estimation of the refractive index of the material deposited and the thickness of the bilayers are also presented.
Keywords :
chemical sensors; fibre optic sensors; refractive index; self-assembly; spray coating techniques; ESA-based In-fiber nanocavity; Prussian blue; electrostatic layer-by-layer self-assembly method; fiber-optic sensor; hydrogen-peroxide detection; pH; polymeric structure; refractive index; Biochemistry; Biological materials; Biosensors; Electrostatics; Nanostructured materials; Nanostructures; Optical fiber sensors; Optical materials; Self-assembly; Spectroscopy; Electrostatic self-assembly (ESA); hydrogen peroxide; nanostructures; optical fiber sensor;
Journal_Title :
Nanotechnology, IEEE Transactions on
DOI :
10.1109/TNANO.2004.837846
