3-DIMENSIONAL PH MICROPROBING WITH AN OPTICALLY-MANIPULATED FLUORESCENT PARTICLE
Citation
K. Sasaki et al., 3-DIMENSIONAL PH MICROPROBING WITH AN OPTICALLY-MANIPULATED FLUORESCENT PARTICLE, Chemistry Letters, (2), 1996, pp. 141-142
Categorie Soggetti
Chemistry
SICI code
0366-7022(1996):2<141:3PMWAO>2.0.ZU;2-O
Abstract
A novel pH microprobe has been developed, which makes it possible to m
easure inhomogeneous pH distributions with submicrometer three-dimensi
onal resolution. A polyacrylamide particle incorporated with pH-sensit
ive fluorescein-acrylamide is manipulated with a laser trapping techni
que. It is demonstrated that the local pH in a water/glass interface i
s different from that of bulk water.
