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  Caged Na+ and K+ ligands: photochemical properties, application for membrane transport studies and selective fluorimetric detection of alkali ions

Warmuth, R., Gersch, B., Kastenholz, F., Lehn, J.-M., Bamberg, E., & Grell, E. (1994). Caged Na+ and K+ ligands: photochemical properties, application for membrane transport studies and selective fluorimetric detection of alkali ions. In E. Bamberg, & W. Schoner (Eds.), The Sodium Pump (pp. 621-624). Darmstadt, Germany: Steinkopff Verlag GmbH & Co. KG, Darmstadt 1994.

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 Creators:
Warmuth, Ralf1, Author              
Gersch, Bernd1, Author              
Kastenholz, Frank1, Author              
Lehn, Jean-Marie2, Author
Bamberg, Ernst1, Author              
Grell, Ernst1, Author              
Affiliations:
1Department of Biophysical Chemistry, Max Planck Institute of Biophysics, Max Planck Society, ou_2068289              
2Institut Le Bel Université Louis Pasteur, Strasbourg, France, ou_persistent22              

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Free keywords: Protonation Constant; Alkali Cation; Photochemical Property; Alkaline Earth Cation; Concentration Jump
 Abstract: In many biological studies the generation of fast cation concentration jumps without mechanical disturbance of the biological system is of considerable interest. We have recently reported the synthesis of photo-cleavable cryptands 1 and 2 substituted with a 2-nitrophenyl group at one of the cryptand bridges as alkali ion selective ligands (2,3,5). These cryptands are suitable for binding alkali as well as alkaline earth cations (caged-cations) and releasing the complexed cation after a short pulse of UV light, due to the cleavage of the substituted cryptand bridge. This results in a drastical decrease of the stability of the cation/ligand complex (2,5). Cryptands 3 and 4 were synthesized as fast, selective and sensitive indicators for alkali cations in aqueous solution. Fluorescence and cation binding properties of these ligands are discussed.

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Language(s): eng - English
 Dates: 1994
 Publication Status: Published in print
 Pages: 4
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1007/978-3-642-72511-1_111
 Degree: -

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Title: The Sodium Pump
  Subtitle : Structure Mechanism, Hormonal Control and its Role in Disease
Source Genre: Book
 Creator(s):
Bamberg, Ernst1, Editor            
Schoner, Wilhelm2, Editor
Affiliations:
1 Department of Biophysical Chemistry, Max Planck Institute of Biophysics, Max Planck Society, ou_2068289            
2 Institut für Biochemie, Universität Gießen, Gießen, Germany, ou_persistent22            
Publ. Info: Darmstadt, Germany : Steinkopff Verlag GmbH & Co. KG, Darmstadt 1994
Pages: 906 Volume / Issue: - Sequence Number: - Start / End Page: 621 - 624 Identifier: DOI: 10.1007/978-3-642-72511-1
ISBN: 978-3-642-72513-5
ISBN: 978-3-642-72511-1