Results 101 to 110 of about 6,781 (224)

Optical detection of di- and triphosphate anions with mixed monolayer-protected gold nanoparticles containing zinc(II)–dipicolylamine complexes

open access: yesBeilstein Journal of Organic Chemistry, 2020
Gold nanoparticles covered with a mixture of ligands of which one type contains solubilizing triethylene glycol residues and the other peripheral zinc(II)–dipicolylamine (DPA) complexes allowed the optical detection of hydrogenphosphate, diphosphate, and
Lena Reinke   +3 more
doaj   +1 more source

Fluorescent Sensing of Chlorophenols in Water Using an Azo Dye Modified β-Cyclodextrin Polymer

open access: yesSensors, 2011
A water soluble azo dye modified β-cyclodextrin polymer 4 was synthesized and used as a chemosensor for the detection of chlorinated phenols, model chlorinated by-products (CBPs) of water treatment for drinking purposes.
Bhekie B. Mamba   +2 more
doaj   +1 more source

Pyrophosphate-Selective Fluorescent Chemosensor at Physiological pH:  Formation of a Unique Excimer upon Addition of Pyrophosphate

open access: yes, 2016
We report a new fluorescent chemosensor that displays an excellent selectivity for pyrophosphate over adenosine triphosphate or phosphate in 100% aqueous solution.
Sung-Jin Kim (583410)   +6 more
core   +2 more sources

A Lanthanide-Based Chemosensor for Bioavailable Fe3+ Using a Fluorescent Siderophore: An Assay Displacement Approach

open access: yesSensors, 2010
The measurement of trace analytes in aqueous systems has become increasingly important for understanding ocean primary productivity. In oceanography, iron (Fe) is a key element in regulating ocean productivity, microplankton assemblages and has been ...
Karl J. Wallace   +4 more
doaj   +1 more source

Efficient Immobilization of a Cadmium Chemosensor in a Thin Film: Generation of a Cadmium Sensor Prototype

open access: yes, 2005
The development of an ion-selective chemosensor for Cd2+ allows generation of a “real-time” sensor. Immobilization of the chemosensor on quartz was achieved in a simple monolayer and in a thin film using a polymer intermediary. As intended, the thin film
Husseini, Ghaleb   +8 more
core   +1 more source

The Synthesis and Anion Recognition Property of Symmetrical Chemosensors Involving Thiourea Groups: Theory and Experiments

open access: yesSensors, 2015
The synthesis of four symmetrical compounds containing urea/thiourea and anthracene/nitrobenzene groups was optimized. N,N’-Di((anthracen-9-yl)-methylene) thio-carbonohydrazide showed sensitive and selective binding ability for acetate ion among the ...
Xuefang Shang   +4 more
doaj   +1 more source

Stimuli-Responsive Highly Functionalized Heterocyclic Chemosensor for Colorimetric and Fluorescence Sensing

open access: yes
A stimuli-responsive highly functionalized heterocyclic chemosensor was developed for dual colorimetric and fluorescence sensing of metal ions in aqueous media.
Selvanathan G., Bakiyalakshmi G.
core   +1 more source

A naphthalimide-calixarene as a two-faced and highly selective fluorescent chemosensor for Cu2+ or F-

open access: yes, 2019
A new naphthalimide-calix[4]arene was synthesized as a two-faced and highly selective fluorescent chemosensor for Cu2+ or F-. This chemosensor displayed a selective fluorescence quenching effect only with Cu2+ among the various metal ions.
이종목, 윤주영
core   +1 more source

Efficient Immobilization of a Cadmium Chemosensor in a Thin Film:  Generation of a Cadmium Sensor Prototype

open access: yes, 2016
The development of an ion-selective chemosensor for Cd2+ allows generation of a “real-time” sensor. Immobilization of the chemosensor on quartz was achieved in a simple monolayer and in a thin film using a polymer intermediary. As intended, the thin film
Reed M. Izatt (2689771)   +8 more
core   +1 more source

Table_1_A Colorimetric Chemosensor Based on a Nozoe Azulene That Detects Fluoride in Aqueous/Alcoholic Media.docx

open access: yes, 2020
Colorimetry is an advantageous method for detecting fluoride in drinking water in a resource-limited context, e. g., in parts of the developing world where excess fluoride intake leads to harmful health effects.
Simon E. Lewis (1278393)   +7 more
core   +1 more source

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