MINIATURIZATION OF ORGANICALLY DOPED SOL-GEL MATERIALS - A MICRONS-SIZE FLUORESCENT PH SENSOR

被引：65

作者：

SAMUEL, J ^{[1
]}

STRINKOVSKI, A ^{[1
]}

LIEBERMAN, K ^{[1
]}

OTTOLENGHI, M ^{[1
]}

AVNIR, D ^{[1
]}

LEWIS, A ^{[1
]}

机构：

[1] HEBREW UNIV JERUSALEM,DIV APPL PHYS,IL-91904 JERUSALEM,ISRAEL

来源：

MATERIALS LETTERS | 1994年 / 21卷 / 5-6期

关键词：

D O I：

10.1016/0167-577X(94)90254-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Miniaturization of a reactive doped sol-gel material is described. A reversible fluorescent pH sensor was constructed by placing a pyranine doped SiO2 sol-gel matrix at a 10 mu m tip of a metal coated micropipette. Subsecond response time was achieved by further downscaling to similar to 1 mu m. Using optical near-field microscopy configuration, these observations demonstrate the potential of constructing a variety of miniaturized sensors and chemical manipulators, by doping the sol-gel matrix with a suitable reagent.

引用

页码：431 / 434

页数：4

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