Results 1 to 10 of about 102,344 (315)

Fluorescence quenching near small metal nanoparticles [PDF]

The Journal of Chemical Physics, 2012
We develop a microscopic model for fluorescence of a molecule (or semiconductor quantum dot) near a small metal nanoparticle. When a molecule is situated close to metal surface, its fluorescence is quenched due to energy transfer to the metal. We perform quantum-mechanical calculations of energy transfer rates for nanometer-sized Au nanoparticles and ...
V. N. Pustovit, Tigran V. Shahbazyan
openalex   +5 more sources

Fluorescence Quenching of Aromatic Amino Acids by Rhodium Nanoparticles

Substantia
In this paper, the fluorescence quenching of the aromatic amino acids tyrosine and tryptophan by rhodium nanoparticles has been investigated.The choice of rhodium nanoparticles was determined by the fact that the plasmonic maximum of the nanoparticles ...
Elizaveta Demishkevich, Alexander Zozulya, Andrey Zyubin, Ivan Lyatun, Ilia Samusev   +4 more
doaj   +3 more sources

Study on the Inhibitory Mechanisms of Native Cellulose, Microcrystalline Cellulose, and Soluble Cellodextrin on α-Amylase and Amyloglucosidase [PDF]

Foods
The inhibitory effects of natural cellulose (NC), microcrystalline cellulose (MC), and soluble fiber dextrin (SC) on amylase activity have been established; however, the underlying mechanisms remain poorly understood.
Yanli Zhu, Lin Su, Shanshan Liu, Liping Lu, Li Song, Huimin Ma, Mingyue Zhang, Dandan Gao   +7 more
doaj   +2 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

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
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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

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

Quenching Efficiency of Quantum Dots Conjugated to Lipid Bilayers on Graphene Oxide Evaluated by Fluorescence Single Particle Tracking

Applied Sciences, 2022
A single particle observation of quantum dots (QDs) was performed on lipid bilayers formed on graphene oxide (GO). The long-range fluorescence quenching of GO has been applied to biosensing for various biomolecules.
Yoshiaki Okamoto, Seiji Iwasa, Ryugo Tero   +2 more
doaj   +1 more source