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Dive into the research topics where Danielle Marie Henrie Wettling is active.

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Featured researches published by Danielle Marie Henrie Wettling.


Sol-Gel Optics II | 1992

Sol-gel-derived optical pH sensors

Pascale Lacan; P. LeGall; Jeannine Rigola; Christian Lurin; Danielle Marie Henrie Wettling; Christian Guizard; Louis Cot

The sol-gel process has been successfully used for preparing amorphous and transparent oxide materials doped with organic molecules. This paper reports on the possibility of using sol-gel materials as host matrices for organic dyes in order to perform optical pH sensors. Different materials have been investigated so as to study the influence of some characteristics (porosity, hydrophilicity, hydrophobicity...) on the dye optical behavior. Results will be presented for microporous silica and heteropolysiloxanes which are organic/inorganic composites materials obtained from ormosil precursors known to provide versatile systems. Preliminary experiments have been carried out with sol-gel thin films doped with fluorescein as pH indicator and coated onto flat glass substrates. Dynamic range and response time curves are reported for the different sensors. Problems of signal losses (leachability, dye degradation...), sensor lifetime and dye stability within the different matrices are also discussed.


Archive | 2001

Apparatus for putting into contact a defined quantity of a treatment material with an aqueous solution to be treated and process for treating an aqueous solution

Olivier Jean Christia Poncelet; Danielle Marie Henrie Wettling


Archive | 1998

Method of decontaminating a photographic bath with heat-reversible polymers

Olivier Jean Christia Poncelet; Danielle Marie Henrie Wettling; Jeannine Rigola


Archive | 1996

Composition photocatalytique transparente inorganique

Olivier Jean Christia Poncelet; Danielle Marie Henrie Wettling


Archive | 2002

Material und Verfahren zur Verarbeitung photographischer Abwässer Material and method for processing photographic effluents

Danielle Marie Henrie Wettling; Olivier Jean Christia Poncelet


Archive | 2000

Verfahren zur silbergewinnung aus photographischem entwickler A method for extraction of silver from photographic developer

Olivier Jean Christia Poncelet; Jacques Roussilhe; Danielle Marie Henrie Wettling


Archive | 1999

Method for extracting money from a photographic developer

Olivier Jean Christia Poncelet; Jacques Roussilhe; Danielle Marie Henrie Wettling


Archive | 1996

Organische/anorganische Gele zur Abgabe von kontrollierten Mengen von Wirkstoffen in wässrigen Lösungen Organic / inorganic gels for dispensing controlled amounts of drugs in aqueous solutions

Olivier Jean Christia Poncelet; Danielle Marie Henrie Wettling; Jeannine Rigola


Archive | 1996

Organic / inorganic gels for the delivery of controlled amounts of drugs in aqueous solutions

Olivier Jean Christia Poncelet; Danielle Marie Henrie Wettling; Jeannine Rigola


Archive | 1996

Method of treating a photographic bath containing organic pollutants

Olivier Jean Christia Poncelet; Jeannine Rigola; Danielle Marie Henrie Wettling

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Christian Guizard

Centre national de la recherche scientifique

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Louis Cot

Centre national de la recherche scientifique

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