Results 1 to 10 of about 668,221 (156)

Fluorescence quenching of tryptophan by trifluoroacetamide

Biochimica et Biophysica Acta (BBA) - General Subjects, 1984
Trifluoroacetamide was found to be a good quencher of tryptophan fluorescence, and the quenching was shown to proceed via both a dynamic and a static process. The respective quenching constants were determined by the measurement of the decrease of the fluorescence lifetime in the presence of the quencher.
Midoux, Patrick, Wahl, Philippe, Auchet, Jean-Claude, Monsigny, Michel   +3 more
openaire   +4 more sources

Amplified Detection of Iron Ion Based on Plasmon Enhanced Fluorescence and Subsequently Fluorescence Quenching

Nano-Micro Letters, 2014
A facile and rapid approach for detecting low concentration of iron ion (Fe3+) with improved sensitivity was developed on the basis of plasmon enhanced fluorescence and subsequently amplified fluorescence quenching.
Lin Zhou, Han Zhang, Yanping Luan, Si Cheng, Li-Juan Fan   +4 more
doaj   +2 more sources

Fluorescence superquenching of iodinated cyanine dyes using iron oxide nanoparticles in micellar media. [PDF]

Delta Journal of Science, 2023
Fluorescence quenching of iodinated cyanine dyes gained attention in recent years in the field of Theranostics whereby cyanine dyes loaded on FDA-approved feraheme form nanoprobes with quenched fluorescence.
Ehab Okba, Elzeiny Ebeid, Ali Al-Ayyat, Saleh abdelazim, Ibrahim Salem   +4 more
doaj   +1 more source

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

Computational chemistry‐assisted design of hydrazine‐based fluorescent molecular rotor for viscosity sensors

Smart Molecules, 2023
Deep understanding of the fluorescence quenching mechanisms of probes plays a crucial role in developing their practical applications. The fluorescence quenching mechanism of hydrazine‐based fluorescence probes needs to be clarified up to the present ...
Miao Dong, Dazhuang Wang, Jinrong Yang, Pingping Sun, Weilu Ding, Jianxin Yang, Jinwu Yan, Weijie Chi   +7 more
doaj   +1 more source

Development of Fluorescent Aptasensors Based on G-Quadruplex Quenching Ability for Ochratoxin A and Potassium Ions Detection

Biosensors, 2022
G-quadruplexes have received significant attention in aptasensing due to their structural polymorphisms and unique binding properties. In this work, we exploited the fluorescence-quenching properties of G-quadruplex to develop a simple, fast, and ...
Cheng Yang, Xiaolin Chu, Li Zeng, Amina Rhouati, Fathimath Abbas, Shengnan Cui, Daiqin Lin   +6 more
doaj   +1 more source

Spectroscopic and Structural Analysis of Cu²⁺-Induced Fluorescence Quenching of ZsYellow

Biosensors, 2020
Fluorescent proteins exhibit fluorescence quenching by specific transition metals, suggesting their potential as fluorescent protein-based metal biosensors. Each fluorescent protein exhibits unique spectroscopic properties and mechanisms for fluorescence
In Jung Kim, Yongbin Xu, Ki Hyun Nam
doaj   +1 more source

Study of factors controlling the photoprotection capacity of the thylakoid membrane [PDF]

, 2010
PhDPlants require light for the process of photosynthesis, but excess of light absorption can cause photooxidative damage. To avoid this damage, plants have evolved a photoprotective mechanism to dissipate excess light energy as heat in a process ...
Zia, Ahmad
core   +4 more sources

Cobalt Detection Using Fluorescent Dye Layers

Engineering Proceedings, 2022
In this paper, we report the preliminary results regarding the use of fluorescent dye calcein (C30H26N2O13) as a sensor for the detection of cobalt levels in aqueous solutions.
Fernando Arturo Armenta-Serna, Yadira Aracely Fuentes-Rubio, René Fernando Domínguez-Cruz, Luis Antonio García-Garza, Oscar Baldovino-Pantaleón, Carlos Ruiz-Zamarreño   +5 more
doaj   +1 more source