ESA-based in-fiber nanocavity for hydrogen-peroxide detection

作者：Del Villar I^*; Matias IR; Arregui FJ; Claus RO

来源：IEEE Transactions on Nanotechnology, 2005, 4(2): 187-193.

DOI：10.1109/TNANO.2004.837846

• electrostatic self-assembly (ESA)
• hydrogen peroxide
• nanostructures
• optical fiber sensor

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..

• 出版日期2005-3