Laser excitation spectroscopic studies of metal ion binding in polymers

1987 ◽  
Author(s):  
Eric K. L. Wong ◽  
Geraldine L. Richmond
Keyword(s):  
Metal Ion ◽  
Laser Excitation ◽  
Spectroscopic Studies ◽  
Ion Binding ◽  
Metal Ion Binding

Effects of Oxidation State on Metal Ion Binding byMedicago sativa(Alfalfa):  Atomic and X-ray Absorption Spectroscopic Studies with Fe(II) and Fe(III)

2000 ◽  
Vol 34 (4) ◽  
pp. 693-698 ◽  
Author(s):  
K. J. Tiemann ◽  
J. L. Gardea-Torresdey ◽  
G. Gamez ◽  
K. Dokken ◽  
Irene Cano-Aguilera ◽  
...  
Keyword(s):  
Oxidation State ◽  
Metal Ion ◽  
Spectroscopic Studies ◽  
Ion Binding ◽  
Metal Ion Binding ◽  
X Ray ◽  
X Ray Absorption

Metal Ion Binding Properties of Perfluorosulfonate Membranes by Laser Excitation Spectroscopy

1988 ◽  
Vol 42 (2) ◽  
pp. 293-295 ◽  
Author(s):  
E. K. L. Wong ◽  
G. L. Richmond
Keyword(s):  
Metal Binding ◽  
Binding Sites ◽  
Metal Ion ◽  
Laser Excitation ◽  
Ion Binding ◽  
Metal Ion Binding ◽  
Binding Properties ◽  
Metal Binding Sites ◽  
Fluorescence Measurements ◽  
Experimental Parameters

The metal ion binding properties of the perfluorosulfonate membrane Nafion® have been investigated in this study. The experiments involve laser-induced fluorescence measurements of europium (III) ions which are bound to the membrane. By the exploitation of the hypersensitivity of the D → F transitions of europium (III) to the ligand binding environment, the properties of the metal binding sites have been analyzed as a function of various experimental parameters. The spectra and fluorescence lifetime measurements provide evidence for distinct metal binding sites within the polymer, each of which is sensitive to the conditions of the membrane preparation.

scholarly journals Spectroscopic studies on the metal-ion-binding sites of Co2+-substituted D-xylose isomerase from Streptomyces rubiginosus

1990 ◽  
Vol 193 (3) ◽  
pp. 863-871 ◽  
Author(s):  
Christoph SUDFELDT ◽  
Andreas SCHAFFER ◽  
Jeremias H. R. KAGI ◽  
Ralf BOGUMIL ◽  
Hans-Peter SCHULZ ◽  
...  
Keyword(s):  
Binding Sites ◽  
Metal Ion ◽  
Xylose Isomerase ◽  
Spectroscopic Studies ◽  
Ion Binding ◽  
Metal Ion Binding ◽  
Ion Binding Sites ◽  
Streptomyces Rubiginosus ◽  
Metal Ion Binding Sites

Spectroscopic studies of metal ion binding to a tryptophan-containing parvalbumin

Biochemistry ◽  
1985 ◽  
Vol 24 (19) ◽  
pp. 4991-4997 ◽  
Author(s):  
Patrick J. Breen ◽  
Erich K. Hild ◽  
William D. Horrocks
Keyword(s):  
Metal Ion ◽  
Spectroscopic Studies ◽  
Ion Binding ◽  
Metal Ion Binding

Photophysical Characterisation, Metal Ion Binding and Enantiomeric Recognition of Chiral Ligands Containing Phenazine Fluorophore

2004 ◽  
Vol 69 (4) ◽  
pp. 885-896 ◽  
Author(s):  
Luisa Stella Dolci ◽  
Péter Huszthy ◽  
Erika Samu ◽  
Marco Montalti ◽  
Luca Prodi ◽  
...  
Keyword(s):  
Metal Ion ◽  
Photophysical Properties ◽  
Ion Binding ◽  
Metal Ion Binding ◽  
Ammonium Ions ◽  
Enantiomerically Pure ◽  
Binding Process ◽  
High Affinity ◽  
Enantiomeric Recognition ◽  
Chiral Species

Enantiomerically pure dimethyl- and diisobutyl-substituted phenazino-18-crown-6 ligands bind metal and ammonium ions and also primary aralkylammonium perchlorates in acetonitrile with high affinity, causing pronounced changes in their luminescence properties. In addition, they show enantioselectivity towards chiral primary aralkylammonium perchlorates. The possibility to monitor the binding process by photoluminescence spectroscopy can gain ground for the design of very efficient enantioselective chemosensors for chiral species. The observed changes in the photophysical properties are also an important tool for understanding the interactions present in the adduct.

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