Results 21 to 30 of about 198,708 (272)
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 +5 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
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 +6 more
doaj +1 more source
Shipin gongye ke-ji, 2022 In this work, using Eu3+ embedded tungsten-oxygen cluster (compound 1) as the fluorescent probe material, the rapid and sensitive fluorescence detection of heavy metal Cr3+ ions in aqueous solution by compound 1 has been systematically studied.
Zhenwei WANG +3 more
doaj +1 more source
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 +2 more
doaj +1 more source
St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2023 In this work, the binding of caffeine (CAF) with nicotinamide (NIC) has been investigated by means of fluorescence quenching and UV-Vis spectroscopic techniques.
Gebreyohanes Ataklti Abraha +1 more
doaj +1 more source
Analysis of initial chlorophyll fluorescence induction kinetics in chloroplasts in terms of rate constants of donor side quenching release and electron trapping in photosystem II [PDF]
, 2008 The fluorescence induction F(t) of dark-adapted chloroplasts has been studied in multi-turnover 1 s light flashes (MTFs). A theoretical expression for the initial fluorescence rise is derived from a set of rate equations that describes the sequence of ...
Vredenberg, W.J.
core +2 more sources
Facile synthesis of chitosan-capped ZnS quantum dots as an eco-friendly fluorescence sensor for rapid determination of bisphenol A in water and plastic samples [PDF]
, 2014 This paper describes a novel eco-friendly fluorescence sensor for determination of bisphenol A (BPA) based on chitosan-capped ZnS quantum dots (QDs). By using safe and inexpensive materials, nontoxic ZnS QDs were synthesized via an environment-friendly ...
Bie, Jiaxin +7 more
core +1 more source
Study of Role of Silver Nanoparticles on Spectroscopic Properties of a KetocyanineDye [PDF]
, 2021 The role of silver nanoparticles on spectroscopic properties of the ketocyaninedye 2,5-di[(E)-1-(4- dimethylaminophenyl) methylidine]-1-cyclopentanone (2,5-DMAPMC) has been investigated using absorption and fluorescence spectroscopy. Silver nanoparticles
J, Thipperudrappa
core +2 more sources
Promoting near‐infrared II fluorescence efficiency by blocking long‐range energy migration
Aggregate, 2023 Generally, long wavelength absorbed near‐infrared II (NIR‐II) dyes have a low fluorescence efficiency in aggregate states for aggregate‐caused quenching effect, simultaneously enhancing efficiency and extending absorption is a challenging issue for NIR ...
Changjin Ou +9 more
doaj +1 more source