Analytical Sciences
Online ISSN : 1348-2246
Print ISSN : 0910-6340
ISSN-L : 0910-6340
Original Papers
Individual Nanoparticle Detection in Liquids by Thermal Lens Microscopy and Improvement of Detection Efficiency Using a 1-µm Microfluidic Channel
Nobuhiro SETAKazuma MAWATARITakehiko KITAMORI
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2009 Volume 25 Issue 2 Pages 275-278

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Abstract

Nanoparticles are a key material in nanoscience and nanotechnology due to their unique physicochemical properties, so an analytical method is increasingly required. In the present research, we developed a method for individual nanoparticle detection by thermal lens microscopy and microfluidic chips. Pulsed signals were clearly observed, as nanoparticles were passing through the detection volume. The scale of the microfluidic channel was reduced from 100 to 1 µm to improve the detection efficiency. As a result, a detection efficiency of 100% was demonstrated.

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© 2009 by The Japan Society for Analytical Chemistry
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