Results 71 to 80 of about 1,172,898 (296)
Use of a distant reporter group as evidence for a conformational change in a sensory receptor [PDF]
, 1977 A highly sensitive method for demonstrating ligand-induced conformational changes in protein molecules in solution is described. The method utilizes an environmentally sensitive reporter group that is known to be distant from the active site.
Hartig, P. R. +2 more
core
Fluorescence spectroscopy of osthole binding to human serum albumin
Journal of Pharmaceutical Analysis, 2013 The interaction of human serum albumin (HSA) with osthole was investigated by fluorescence spectroscopy. Osthole can quench the fluorescence of HSA and the quenching mechanism is a static process. The binding site number n and apparent binding constant K
Guang-De Yang +5 more
doaj +1 more source
Effects of strand and directional asymmetry on base-base coupling and charge transfer in double-helical DNA [PDF]
, 2002 Mechanistic models of charge transfer (CT) in macromolecules often focus on CT energetics and distance as the chief parameters governing CT rates and efficiencies.
Barton, Jacqueline K. +1 more
core
The Scientific World Journal, 2011 Heterogeneous distributions of copper-binding characteristics were compared for two ultrafiltered size fractions of a soil HA using fluorescence quenching combined with two-dimensional correlation spectroscopy (2D-COS).
Jin Hur, Bo-Mi Lee
doaj +1 more source
Iron specificity of a biosensor based on fluorescent pyoverdin immobilized in sol-gel glass
Journal of Biological Engineering, 2011 Two current technologies used in biosensor development are very promising: 1. The sol-gel process of making microporous glass at room temperature, and 2. Using a fluorescent compound that undergoes fluorescence quenching in response to a specific analyte.
Kisaalita William S, Yoder Michael F
doaj +1 more source
, 2018 An important determinant of crop yields is the regulation of photosystem II (PSII) light harvesting by energy-dependent quenching (qE). However, the molecular details of excitation quenching have not been quantitatively connected to the PSII yield, which
Amarnath, Kapil +2 more
core
Frontiers in Plant Science, 2019 Chlorophyll fluorescence analysis is one of the most powerful and widely used techniques to study the effect of stresses on the photosynthetic process.
Lucia Guidi +3 more
doaj +1 more source
Anti-quenching NIR-II molecular fluorophores for in vivo high-contrast imaging and pH sensing
Nature Communications, 2019 The contrast and sensitivity of in vivo fluorescence imaging has been revolutionized by molecular fluorophores operating in the second near-infrared window (NIR-II; 1000-1700 nm), but an ongoing challenge is the solvatochromism-caused quenching in ...
Shangfeng Wang +7 more
semanticscholar +1 more source
Sensing of iron(III)-biomolecules by surfactant-free fluorescent copper nanoclusters
Sensing and Bio-Sensing Research, 2019 Surfactant-free copper nanoclusters (sf-CuNCs) synthesized in the absence of external stabilizer, could be promising fluorescence biosensors because of the presence of relatively exposed surfaces that may ease coupling with biomolecules.
Dillip Kumar Sahu +2 more
doaj +1 more source
Fluorescence of thermal control coatings on S0069 and A0114 [PDF]
Many of the thermal control surfaces exposed to the space environment during the 5.8 year LDEF mission experienced changes in fluorescence. All of the thermal control coatings flown on LDEF experiments S0069 and A0114 were characterized for fluorescence ...
Gregory, John C. +5 more
core +1 more source