Results 111 to 120 of about 1,139,926 (347)

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

Sono‐Piezo‐Photosynthesis of Ethylene and Acetylene from Bioethanol under Ambient Conditions

open access: yesAdvanced Functional Materials, EarlyView.
A novel sono‐piezo‐photocatalytic strategy enables the conversion of bioethanol to ethylene (C2H4) and acetylene (C2H2) under ambient conditions, addressing the limitations of conventional methods that are high‐temperature and energy‐intensive. By using an advanced graphene oxide/sodium bismuth titanate heterostructure catalyst, this work achieved ...
Yue Jiang   +21 more
wiley   +1 more source

Fluorescent nanoparticles for sensing

open access: yes, 2020
Nanoparticle-based fluorescent sensors have emerged as a competitive alternative to small molecule sensors, due to their excellent fluorescence-based sensing capabilities.
Acosta   +183 more
core   +1 more source

Intramolecular Down‐ and Up‐Conversion in Dimeric Tetracene Complexes Centered via Platinum(II) and Palladium(II)

open access: yesAdvanced Functional Materials, EarlyView.
Metal‐tetracene dimeric complexes are synthesized through the pyridyl coordination to either Pt(II) or Pd(II). Photophysical properties are systematically compared as a function of the metal using steady‐state and time‐resolved spectroscopy. The Pt(II) dimer exhibits efficient intramolecular singlet fission and subsequent intramolecular up‐conversion ...
Yifan Bo   +4 more
wiley   +1 more source

Iron specificity of a biosensor based on fluorescent pyoverdin immobilized in sol-gel glass

open access: yesJournal 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

Alleviating NIR-II emission quenching in ring-fused fluorophore via manipulating dimer populations for superior fluorescence imaging. [PDF]

open access: yesLight Sci Appl
Emission quenching resulting from fluorophore aggregation has long been a significant challenge in optimizing emission-based technologies, such as fluorescence imaging and optoelectronic devices.
Miao X   +8 more
europepmc   +2 more sources

Nitrogen fluorescence in air for observing extensive air showers

open access: yes, 2012
Extensive air showers initiate the fluorescence emissions from nitrogen molecules in air. The UV-light is emitted isotropically and can be used for observing the longitudinal development of extensive air showers in the atmosphere over tenth of kilometers.
Bohacova, M.   +7 more
core   +1 more source

Ionic Metal Poly(heptazine Imides) and Single‐Atoms Interplay: Engineered Stability and Performance for Photocatalysis, Photoelectrocatalysis and Organic Synthesis

open access: yesAdvanced Functional Materials, EarlyView.
Poly(heptazine) imides (PHIs), a crystalline carbon nitride subclass, intercalate metals to deliver high stability, tunable electronics, and efficient charge separation. These features enable solar‐driven applications such as hydrogen evolution, CO₂ reduction, and organic synthesis.
Gabriel A. A. Diab   +6 more
wiley   +1 more source

Anti-quenching NIR-II molecular fluorophores for in vivo high-contrast imaging and pH sensing

open access: yesNature 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

Multispectroscopic and molecular docking studies on the interaction of diltiazem hydrochloride with bovine serum albumin and its application to the quantitative determination of diltiazem hydrochloride

open access: yesJournal of King Saud University: Science, 2022
The interaction between diltiazem hydrochloride (DTZ) and bovine serum albumin (BSA) was probed by fluorescence, UV–vis absorption, Fourier transform infrared, circular dichroism spectroscopies and molecular docking analysis at pH = 7.4.
Nafisur Rahman   +5 more
doaj  

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