Application of fluorescence depolarisation to dye uptake and particle sizing in silica sols

被引：3

作者：

Geddes, CD ^{[1
]}

Birch, DJS ^{[1
]}

Apperson, K ^{[1
]}

Chevers, JM ^{[1
]}

McKeown, IP ^{[1
]}

机构：

[1] Univ Strathclyde, Dept Phys & Appl Phys, Photonphys Grp, Glasgow G4 0NG, Lanark, Scotland

来源：

ADVANCES IN FLUORESCENCE SENSING TECHNOLOGY IV, PROCEEDINGS OF | 1999年 / 3602卷

关键词：

silica sol; particle sizing; fluorescence anisotropy; dye uptake; syneresis;

D O I：

10.1117/12.347523

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

We describe a new approach to particle size measurement in silica sols based on the decay of fluorescence anisotropy of a bound near infrared dye. Changes in particle size up to 4.5 nm are resolved with sub-nanometre resolution across the sol to gel transition.

引用

页码：75 / 84

页数：10

共 14 条

[1] A 2-STEP SILICA SOL-GEL PROCESS INVESTIGATED WITH STATIC AND DYNAMIC LIGHT-SCATTERING MEASUREMENTS [J].

BOONSTRA, AH ;

MEEUWSEN, TPM ;

BAKEN, JME ;

ABEN, GVA .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1989, 109 (2-3) :153-163

[2]

BRINKER CJ, 1989, SOL GEL SCI PHYSICS

[3]

DREXHAGE KH, 1997, J FLUORESC, V7, pS91

[4]

EFTINK MR, 1991, METHOD BIOCHEM ANAL, V35, P127

[5]

GEDDES CD, IN PRESS J FLUORESCE

[6] THE SOL-GEL PROCESS [J].

HENCH, LL ;

WEST, JK .

CHEMICAL REVIEWS, 1990, 90 (01) :33-72

[7] X-RAY-DIFFRACTION INVESTIGATIONS OF SILICA-GEL STRUCTURES [J].

HIMMEL, B ;

GERBER, T ;

BURGER, H .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1987, 91 (01) :122-136

[8]

LAKOWICZ JR, 1992, TOPICS FLUORESCNECE, V3

[9]

LAKOWICZ JR, 1991, TOPICS FLUORESCNECE, V2

[10]

LAKOWICZ JR, 1991, TOPICS FLUORESCNECE, V1

← 1 2 →