Results 1 to 10 of about 1,140,694 (413)

Photoluminescence and Fluorescence Quenching of Graphene Oxide: A Review

Nanomaterials, 2022
In recent decades, photoluminescence (PL) material with excellent optical properties has been a hot topic. Graphene oxide (GO) is an excellent candidate for PL material because of its unique optical properties, compared to pure graphene. The existence of
Xinzhe Xiao, Yumin Zhang, Lei Zhou, Bin Li, Lin Gu   +4 more
doaj   +2 more sources

Quenching of fluorescence of aromatic molecules by graphene due to electron transfer [PDF]

arXiv, 2010
Investigations on the fluorescence quenching of graphene have been carried out with two organic donor molecules, pyrene butanaoic acid succinimidyl ester (PyBS, I) and oligo(p-phenylenevinylene) methyl ester (OPV-ester, II). Absorption and photoluminescence spectra of I and II recorded in mixture with increasing the concentrations of graphene showed no
George, Subi J, Matte, H S S Ramakrishna, Rao, C. N. R., Rao, K Venkata, Subrahmanyam, K S   +4 more
arxiv   +3 more sources

Validation of a Novel Strategy for Fluorescence Quenching for a Self-Quenching Fluorogenic Probe and Its Application for Visual Loop-Mediated Isothermal Amplification Detection During Food Safety Analysis [PDF]

Foods
The self-quenching fluorogenic probe facilitates precise identification of LAMP (loop-mediated isothermal amplification) amplicons, unaffected by non-specific products resulting from primer dimers.
Sisi Huang, Shihui Wang, Tianlong Wang, Hongwei Song, Yan Guo, Xiong Xiong, Libin Wang   +6 more
doaj   +2 more sources

Fluorescence Quenching of Alpha-Fetoprotein by Gold Nanoparticles: Effect of Dielectric Shell on Non-Radiative Decay [PDF]

Nanoscale Research Letters, 2010
Fluorescence quenching spectrometry was applied to study the interactions between gold colloidal nanoparticles and alpha-fetoprotein (AFP). Experimental results show that the gold nanoparticles can quench the fluorescence emission of adsorbed AFP ...
Zhu Jian, Li Jian-jun, Wang A-qing, Chen Yu, Zhao Jun-wu   +4 more
doaj   +4 more sources

Tryptophan Fluorescence Quenching Assays for Measuring Protein-ligand Binding Affinities: Principles and a Practical Guide

Bio-Protocol, 2019
Tryptophan fluorescence quenching is a type of fluorescence spectroscopy used for binding assays. The assay relies on the ability to quench the intrinsic fluorescence of tryptophan residues within a protein that results from changes in the local ...
Anthony Yammine, Jinlong Gao, Ann Kwan
doaj   +2 more sources

The impact of the air-fluorescence yield on the reconstructed shower parameters of ultra-high energy cosmic rays [PDF]

Astropart.Phys.34:467-475,2011, 2010
An accurate knowledge of the fluorescence yield and its dependence on atmospheric properties such as pressure, temperature or humidity is essential to obtain a reliable measurement of the primary energy of cosmic rays in experiments using the fluorescence technique. In this work, several sets of fluorescence yield data (i.e.
Arqueros, F., Garcia-Pinto, D., Monasor, M., Vazquez, J. R.   +3 more
arxiv   +6 more sources

Improved model for the analysis of air fluorescence induced by electrons [PDF]

Nucl.Instrum.Meth.A597:94-98,2008, 2007
A model recently proposed for the calculation of air-fluorescence yield excited by electrons is revisited. Improved energy distributions of secondary electrons and a more realistic Monte Carlo simulation including some additional processes have allowed us to obtain more accurate results.
Abbasi, Arqueros, Ave, Belz, Blanco, Colin, F. Arqueros, F. Blanco, J. Rosado, Lefeuvre, M Sternheimer, Nagano, Opal, Pancheshnyi, Risse, Seltzer   +15 more
arxiv   +3 more sources

The yield of air fluorescence induced by electrons [PDF]

Astropart.Phys.26:231-242,2006, 2006
The fluorescence yield for dry air and pure nitrogen excited by electrons is calculated using a combination of well-established molecular properties and experimental data of the involved cross sections. Particular attention has been paid to the role of secondary electrons from ionization processes.
A. Castellanos, Aarts, Abbasi, Abraham, Abu-Zayyad, Albugues, Arciprete, Arqueros, Baltrusaitis, Becker, Bellido, Belz, Birks, Blanco, Blanco, Borst, Calo, Carr, Catalano, Chen, Davidson, de Souza, F. Arqueros, F. Blanco, Fernandez-Varea, Fons, Fukushima, Gat, Gilmore, Hirsh, Imami, Inokuti, J. Rosado, Kakimoto, Keilhauer, Laux, Leo, M. Ortiz, MacConkey, McConkey, Millet, Mitchell, Morozov, Nagano, Nagano, Nichols, Pancheshnyi, Rapp, Roldan, Sakaki, Schram, Seltzer, Shemansky, Simek, Srivastava, Stanton, Stecker, Sternheimer, Sternheimer, Takeda, Urosevic, Williart   +61 more
arxiv   +4 more sources

Study on the fluorescence properties of the interaction between felodipine and bovine serum protein [PDF]

E3S Web of Conferences, 2021
The interaction between felodipine and bovine serum protein was studied, the optimal experimental conditions were selected, and the fluorescence quenching mechanism was discussed. The interaction between filodipine and bovine serum protein was determined
Li Shuxian, Bu Jialuo, Liu Wenbin, Liu Cuijuan, Lv Yuguang   +4 more
doaj   +1 more source

Ascorbic Acid-Caused Quenching Effect of Protein Clusteroluminescence Probe: The Fast Fluorescent Detection of Ascorbic Acid in Vegetables

Molecules, 2023
It is interesting and meaningful to explore fluorescent probes for novel rapid detection methods. In this study, we discovered a natural fluorescence probe, bovine serum albumin (BSA), for the assay of ascorbic acid (AA).
Jiying Song, Xinyan Guo, Haiying Chen, Yunge Tang, Lei Han   +4 more
doaj   +1 more source