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Probing the Polarity of Sol-Gels and Ormosils via the Absorption of Nile Red

Lobnik, Aleksandra and Wolfbeis, Otto S. (2001) Probing the Polarity of Sol-Gels and Ormosils via the Absorption of Nile Red. Journal of sol gel science and technology 20 (3), pp. 303-311.

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Conventional sol-gels are rather hydrophilic. A more hydrophobic material is obtained preparing organically modified siloxanes (ormosils). The polarity-sensitive probe Nile Red (NR) was doped in various sol-gels to probe their micro-polarity. The experiments show that the NR is an excellent probe and sensitive to the polarity of its microenvironment. Spectroscopic studies reveal remarkable ...


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Item type:Article
Institutions:Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik > Chemo- und Biosensorik (Prof. Antje J. Bäumner, formerly Prof. Wolfbeis)
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Keywords:characterization - polarity sensitive dyes - sol-gels - ormosils - absorption - stability
Dewey Decimal Classification:500 Science > 540 Chemistry & allied sciences
Created at the University of Regensburg:Unknown
Item ID:21062
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