Results 81 to 90 of about 121,227 (315)

Time-resolved fluorescence-based europium-derived probes for peroxidase bioassays, citrate cycle imaging and chirality sensing

open access: yes, 2005
The dissertation describes the development of europium-derived fluorescence probes for biological substances in aqueous solution. A scheme is shown in Fig. 7.1.
Lin, Zhihong
core   +1 more source

A Molecular Shielding Strategy to Develop Low Protein Binding, Renal Clearable Pan‐Cancer Near‐Infrared Probes

open access: yesAdvanced Functional Materials, EarlyView.
A molecular shielding strategy to convert “protein‐sticky” and “non‐tumor specific” clinical ICG dye, into a “low protein binding” and “tumor‐targeting” dye with prolonged blood circulation and renal clearance is described. These shielded ICGs demonstrate strong tumor accumulation and optimal tissue clearance, resulting in high tumor‐to‐background ...
Li Xiang   +9 more
wiley   +1 more source

Fluorescence Quenching

open access: yes, 2022
This is a laboratory video explaining the experimental procedure for Stern-Volmer analysis of the quenching of fluorescein fluorescence by iodide ions in aqueous ...
Kolasinski, Kurt W.
core  

Unified Analytical Framework for Understanding the Operational Stability of Blue Phosphorescent OLEDs: Quantitative Insights Into Exciton Recycling and Bimolecular Interactions

open access: yesAdvanced Functional Materials, EarlyView.
Blue phosphorescent OLEDs remain limited by poor operational stability. Here, a unified analytical framework integrating transient photoluminescence and magneto‐electroluminescence is developed to correlate intrinsic material photophysics with electrically driven degradation.
Hakjun Lee, Bum June Park, Taekyung Kim
wiley   +1 more source

Study on Interaction between Broad Bean Phenolic Compounds and Proteins using Fluorescence Method

open access: yesCzech Journal of Food Sciences, 2009
Protein-polyphenol association may affect polyphenols absorption/bioavailability from gastrointestinal tract and finally modulate their biological activities.
A. Kosińska, M. Karamać, R. Amarowicz
doaj   +1 more source

Kinetic models of photosystem II should accommodate the effect of donor side quenching on variable chlorophyll a fluorescence in the microseconds time

open access: yes, 2009
Quantitative data on laser flash-induced variable fluorescence in the 100 ns to 1 ms time range (Belyaeva et al. in Photosynth Res 98:105–119, 2008) confirming those of others (Steffen et al.
Wim J. Vredenberg, Vredenberg, W.J.
core   +1 more source

MXene Wrapped Magnetic Mesocrystals for Durable Redox Catalytic Cancer Therapy and Responsive MRI

open access: yesAdvanced Functional Materials, EarlyView.
Conformal wrapping of ultrathin Ti3C2Tx MXene nanosheets on Fe3O4 mesocrystals creates topology‐stabilized Schottky junctions that direct photoinduced electron transfer under NIR irradiation. The unique architecture sustains Fenton catalysis, promotes continuous hydroxyl radical production, and provides photo‐responsive MRI contrast.
Min Jun Ko   +10 more
wiley   +1 more source

Comparing the Heterogeneity of Copper-Binding Characteristics for Two Different-Sized Soil Humic Acid Fractions Using Fluorescence Quenching Combined with 2D-COS

open access: yesThe 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

Fluorescence spectroscopy of osthole binding to human serum albumin

open access: yesJournal 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

Laser-induced fluorescence determination of temperatures in low pressure flames

open access: yes, 1989
Rensberger KJ, Jeffries JB, Copeland RA, Kohse-Höinghaus K, Wise ML, Crosley DR. Laser-induced fluorescence determination of temperatures in low pressure flames. Applied Optics.
Jeffries, Jay B.   +5 more
core  

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