TY - JOUR A1 - Rurack, Knut A1 - Resch-Genger, Ute T1 - Rigidization, preorientation and electronic decoupling-the "magic triangle" for the design of highly efficient fluorescent sensors and switches N2 - One of the key interests in the recent development of fluorescent molecular sensors and switches is the realization of systems that show strong signal changes as a response to the chemical trigger. Aiming at rational probe design, this article compiles and compares different promising strategies to extract those supramolecular and photophysical features that allow the construction of molecular devices suitable for efficient signaling. The examples comprise fluorescence OFF–ON as well as ON–OFF operative systems and the mechanisms, properties, and limitations of the different design concepts are discussed. PY - 2002 DO - https://doi.org/10.1039/b100604p SN - 0306-0012 SN - 1460-4744 VL - 31 IS - 2 SP - 116 EP - 127 PB - Royal Society of Chemistry CY - London AN - OPUS4-2083 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Resch-Genger, Ute A1 - Rurack, Knut A1 - Senoner, Mathias T1 - Zeitaufgelöste Fluorometrie in der Wasseranalytik PY - 1994 SN - 0341-5163 SN - 1521-3854 VL - 42 IS - 5 SP - 504 EP - 506 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-2104 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bricks, J. L. A1 - Slominskii, J. L. A1 - Kudinova, M. A. A1 - Tolmachev, A. I. A1 - Rurack, Knut A1 - Resch-Genger, Ute A1 - Rettig, W. T1 - Syntheses and photophysical properties of a series of cation-sensitive polymethine and styryl dyes N2 - The syntheses and photophysical properties of 20 cation-sensitive fluoroionophores carrying the tetraoxa monoaza 15-crown-5 receptor are described and discussed. Whereas complexation induces only weak effects for the positively charged hemicyanine probes, the closely related styryl dyes show stronger changes in their photophysical properties upon cation binding in the analytically advantageous near-infrared (NIR) region. The strongest effects in both cation-induced spectral effects and complex stability constants are observed for the uncharged probes of styryl base-type, but these probes usually absorb and emit at shorter wavelengths in the UV/VIS region. For both styryl dyes and styryl bases, in some cases cation-induced fluorescence enhancement or quenching is found. KW - Fluorescence KW - Ionophores KW - Unsymmetrical cyanines KW - Styryl dyes KW - Styryl bases PY - 2000 DO - https://doi.org/10.1016/S1010-6030(00)00208-2 SN - 1010-6030 SN - 1873-2666 VL - 132 IS - 3 SP - 193 EP - 208 PB - Elsevier CY - Lausanne AN - OPUS4-2089 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rurack, Knut A1 - Unger, Brita A1 - Müller, Ralf A1 - Jancke, Harald A1 - Resch-Genger, Ute T1 - Die Strukturentwicklung von SiO2 Solen und Gelen im Vergleich mikroskopischer und makroskopischer Untersuchungsmethoden T2 - 77. Glastechnische Tagung CY - Leipzig, Deutschland DA - 2003-05-26 PY - 2003 VL - 77 SP - 101 EP - 104 PB - DGG CY - Offenbach AN - OPUS4-3121 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Köster, D. A1 - Mayer-Enthart, Elke A1 - Sialelli, J. A1 - Rurack, Knut A1 - Resch-Genger, Ute A1 - Seitz, H. T1 - Hula Hoop für DNA - Eine hoch sensitive Detektionsmethode für DNA Microarrays N2 - DNA Microarrays, auch als „DNA-Chips“ bekannt, werden verwendet, um das Vorkommen von Genen bzw. Gentranskripten zu analysieren. Sie finden breite Anwendung in der Diagnostik, der Genomanalyse und bei der Erstellung von Genexpressionsprofilen. Vor der Analyse muß auf Grund der oftmals geringen Menge an Probenmaterial eine Vervielfältigung der Probe durchgeführt werden, die jedoch leicht zu Fehlern führt. Im Rahmen dieses Projektes werden zwei experimentelle Ansätze verfolgt, durch die ohne einen Verlust an Sensitivität eine Vervielfältigung der Probe vermieden werden kann, 1) das Etablieren eines RCA-basierten Microarray Assays und 2) die Optimierung des Assays für die Detektion der Fluoreszenzsignale. KW - Newsletter von GABI KW - NGFN KW - GenoMik und FUGATO mit Informationen aus der deutschen Genomforschung PY - 2008 SN - 1617-562X VL - 1 SP - 23 EP - 25 PB - DHGP CY - Berlin AN - OPUS4-17393 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rurack, Knut A1 - Dekhtyar, M. A1 - Bricks, J. A1 - Resch-Genger, Ute A1 - Rettig, W. T1 - Quantum yield switching of fluorescence by selectively bridging single and double bonds in chalcones - involvement of two different types of conical intersections N2 - From the fluorescence properties of chalcones as a function of solvent polarity, and by the comparison to derivatives with donors and acceptors and with various selectively bridged bonds, it can be concluded that two emissive and two nonemissive states are needed to describe the fluorescence behavior. Three of these states are connected with bond twisting and lead to species with high or low dipole moment, two of them situated in the proximity of a conical intersection. KW - Fluoreszenz KW - Konische Durchschneidung PY - 1999 DO - https://doi.org/10.1021/jp992878m SN - 1089-5639 SN - 1520-5215 VL - 103 IS - 48 SP - 9626 EP - 9635 PB - Soc. CY - Washington, DC AN - OPUS4-2093 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rurack, Knut A1 - Rettig, W. A1 - Resch-Genger, Ute T1 - Unusually high cation-induced fluorescence enhancement of a structurally simple intrinsic fluoroionophore with a donor-acceptor-donor constitution N2 - Upon cation complexation, donor–acceptor–donor–substituted intrinsic fluoroionophore 3 shows red-shifted emission spectra accompanied by an extraordinarily high fluorescence enhancement. KW - Fluoreszenz KW - Ionophor KW - Ladungstransfer PY - 2000 DO - https://doi.org/10.1039/a909899b SN - 0022-4936 SN - 0009-241x SN - 1359-7345 SN - 1364-548x VL - 2000 IS - 5 SP - 407 EP - 408 PB - Royal Society of Chemistry CY - Cambridge AN - OPUS4-2091 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rurack, Knut T1 - Die Strukturentwicklung von SiO2 Solen und Gelen im Vergleich mikroskopischer und makroskopischer Untersuchungsmethoden T2 - 77. Glastechnische Tagung CY - Leipzig, Germany DA - 2003-05-26 PY - 2003 AN - OPUS4-3754 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Unger, Brita A1 - Rurack, Knut A1 - Müller, Ralf A1 - Resch-Genger, Ute A1 - Buttke, K. T1 - Effects of the Sol-Gel Processing on the Fluorescence Properties of Laser Dyes in Tetraethoxysilane Derived Matrices N2 - Two fluorescent dyes were incorporated into sol-gel derived SiO2 matrices. The dye was added to SiO2 precursors of different degrees of pre-condensation and the spectroscopic properties of the immobilized dye were measured at various aging and drying stages of the resulting gels. The significant influence of the processing parameters on the spectroscopic properties is manifested in the relative intensity of a second red shifted emission band (550–560 nm), which was observed besides the typical coumarin emission band (495 nm). The appearance of this long wavelength emission might be attributed to dye aggregation or to other reactions with the ambient matrix forced by micro porosity phenomena. KW - Sol-gel KW - Precursor chemistry KW - Fluorescence properties KW - Optical solids PY - 2000 DO - https://doi.org/10.1023/A:1008768318418 SN - 0928-0707 SN - 1573-4846 VL - 19 SP - 799 EP - 802 PB - Kluwer Academic Publ. CY - Dordrecht AN - OPUS4-1080 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Resch-Genger, Ute A1 - Rurack, Knut A1 - Bricks, J.L. A1 - Slominskii, J.L. T1 - New fluorophore receptor systems for heavy metal ions: a spectroscopic study KW - Fluorescence KW - Probe KW - Cation complex KW - Ion responsive KW - Chelation enhanced PY - 1997 SN - 1053-0509 SN - 1573-4994 VL - 7 IS - 1 SP - 231S EP - 233S PB - Plenum Publ. Corp. CY - New York, NY AN - OPUS4-2100 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Rurack, Knut A1 - Bricks, J. L. A1 - Slominskii, J. L. A1 - Resch-Genger, Ute ED - Dähne, S. T1 - Long wavelength emitting fluorescence probes for metal ions T2 - NATO Advanced Research Workshop on Syntheses, Optical Properties and Applications of Near-Infrared (NIR) Dyes in High Technology Fields CY - Trest', Czech Republic DA - 1997-09-24 PY - 1998 IS - 52 SP - 191 EP - 200 PB - Kluwer CY - Dordrecht AN - OPUS4-2097 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -