Fluorescent Chemosensors for Ion and Molecule Recognition by Anthony W. Czarnik PDF

By Anthony W. Czarnik

ISBN-10: 0841213941

ISBN-13: 9780841213944

ISBN-10: 0841227284

ISBN-13: 9780841227286

content material: Supramolecular chemistry, fluorescence, and sensing / Anthony W. Czarnik --
Synthesis and research of crown ethers with alkali-metal-enhanced fluorescence : quest for flashy crowns / L.R. Sousa, B. Son, T.E. Trehearne, R.W. Stevenson, S.J. Ganion, B.E. Beeson, S. Barnell, T.E. Mabry, M. Yao, C. Chakrabarty, P.L. Bock, C.C. Yoder, and S. Pope --
Ion reputation detected by way of adjustments in photoinduced cost or power move / Bernard Valeur, Jean Bourson, and Jacques Pouget --
Fluorescent photoinduced electron-transfer sensors : the easy common sense and its extensions / Richard A. Bissell, A. Prasanna de Silva, H.Q. Nimal Gunaratne, P.L. Mark Lynch, Colin P. McCoy, Glenn E.M. Maguire, and K.R.A. Samankumara Sandanayake --
Tunable fluorescence of a few macrocyclic anthracenophanes / H. Bouas-Laurent, J-P. Desvergne, F. Fages, and P. Marsau --
Fluorescent cyclodextrins for detecting natural compounds with molecular reputation / Akihiko Ueno --
Intrinsic chromophores and fluorophores in artificial molecular receptors / Thomas W. Bell, Daniel L. Beckles, Peter J. Cragg, Jia Liu, James Maioriello, Andrew T. Papoulis, and Vincent J. Santora --
Fluorescent sign transduction in molecular sensors and dosimeters / Anthony W. Czarnik --
Fluorescent and photochemical probes of dynamic biochemical signs inside of residing cells / Roger Y. Tsien --
1,2-Bis(2-aminophenoxy)ethane-N, N, N', N', -tetraacetic acid conjugates used to degree intracellular Ca² focus / Michael A. Kuhn --
Fluorescent chemosensors for tracking potassium in blood and throughout organic membranes / Divakar Masilamani and Mariann E. Lucas --
Fluorescent probes in reviews of proteases / furnish A. Krafft and Gary T. Wang --
Lifetime-based sensing utilizing phase-modulation fluorometry / H. Szmacinski and J.R. Lakowicz.

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1993, 202, 425. 21. ; Tsien, R. J. Biol. Chem. 1985, 260, 3440. 22. ; Pouget, J. J. Lumin. 1992, 52, 345. 23. ; Ernsting, N. P. J. Phys. Chem. 1992, 96, 6545. 24. ; Santi, F. J. Phys. , 1989, 93, 6073. 25. ; Ernsting, N. P. Chem. Phys. , 1991, 179, 544. 26. ; Valeur, B. J. , 1985, 33, 273. 27. ; Weber, E. Angew. Chem. Int. Ed. , 1979, 18, 753. 28. Hancock, R. ; Shaikjee, M. ; Dobson, S. ; Boeyens, J. C. A. Inorg. Chim. Acta. 1988, 154, 229. 29. Förster, Th. Ζ. , 1949, 4a, 321. ; ACS Symposium Series; American Chemical Society: Washington, DC, 1993.

PH controlled 'on-off' fluorescence is demonstrated in the case of the dialkylaminoalkyl heterocyclic derivative 1a. The modular system is then extended in two directions. In the first of these, targetting/anchoring modules are added to allow the investigation of proton fields in microheterogeneous membrane media with high spatial resolution. The sensor family 2a-f is the realization of this approach. The second direction employs phosphorescent (instead of fluorescent) modules with/without protective shields to permit the development of phosphorescent pH sensing in an interference-free manner within intrinsically fluorescent environments.

Among the numerous methods employed, fluorescent sensors offer distinct advantages in terms of sensitivity and specificity. Moreover, remote sensing is possible by using optical fibres. Our aim is to design fluorescent sensors that undergo photophysical changes (extinction coefficient, fluorescence intensity, shifts in absorption and emission spectra) as marked as possible upon cation binding. Special attention is of course paid to selectivity and complex stability. With this in mind, two types of systems are being investigated in our laboratory: fluoroionophores and complexing bifluorophores.

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