Articles with "copper ion" as a keyword



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Unfolding of CBP21, a lytic polysaccharide monooxygenase, without dissociation of its copper ion cofactor.

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Published in 2019 at "Biopolymers"

DOI: 10.1002/bip.23339

Abstract: Chitin-binding protein 21 (CBP21) from Serratia marcescens is a lytic polysaccharide monooxygenase that contains a copper ion as a cofactor. We aimed to elucidate the unfolding mechanism of CBP21 and the effects of Cu2+ on… read more here.

Keywords: cu2; polysaccharide monooxygenase; copper ion; lytic polysaccharide ... See more keywords
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Colorimetric copper ion sensing in solution phase and on paper substrate based on catalytic decomposition of S-nitrosothiol.

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Published in 2019 at "Analytica chimica acta"

DOI: 10.1016/j.aca.2018.11.050

Abstract: A S-nitrosothiol (RSNO) is used for highly selective and sensitive copper ion sensing for the first time. Cu(II) in the sample is reduced to Cu(I) by a low amount of thiols generated from hydrolysis of… read more here.

Keywords: copper ion; ion sensing; colorimetric copper; paper ... See more keywords
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Highly sensitive ruthenium complex-based fluorescent probe for copper ion detection

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Published in 2020 at "Tetrahedron"

DOI: 10.1016/j.tet.2020.131526

Abstract: Abstract A Ru(II) complex 1 ([Ru(bpy)2(L)](PF6)2 (L = 2-(1H-pyrazol-5-yl)-1H-imidazo-[4,5-f] [1,10] phenanthroline, bpy = 2,2′-bipyridine)), which included adjacent imidazole and pyrazole moieties as responsive bidentate ligand, had been designed and synthesized as a ’turn-off’ fluorescent probe for sensitively and selectively… read more here.

Keywords: copper ion; fluorescent probe; detection; probe ... See more keywords
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Ready-to-Use Colorimetric Platform for Versatile Enzyme Assays through Copper Ion-Mediated Catalysis.

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Published in 2022 at "Analytical chemistry"

DOI: 10.1021/acs.analchem.1c05096

Abstract: A low cost and versatile colorimetric platform is developed for selective detections of various enzymes. Similar to peroxidases, free copper ion catalyzes the oxidation of 3,3',5,5'-tetramethylbenzidine (TMB) in the presence of H2O2 and turns TMB… read more here.

Keywords: colorimetric platform; catalysis; platform; versatile ... See more keywords
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Gold Nanocluster Probe-Based Electron-Transfer-Mediated Electrochemiluminescence Sensing Strategy for an Ultrasensitive Copper Ion Detection.

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Published in 2022 at "Analytical chemistry"

DOI: 10.1021/acs.analchem.2c04012

Abstract: Exploration of a novel and efficient sensing mechanism of Au nanocluster (AuNC)-based electrochemiluminescence (ECL) sensors is still a great challenge and opportunity for further applications. Herein, we proposed that the electron transfer (ET) could be… read more here.

Keywords: electron transfer; detection; electron; copper ion ... See more keywords
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"One Stone, Four Birds" Ion Engineering to Fabricate Versatile Core-Shell Organosilica Nanoparticles for Intelligent Nanotheranostics.

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Published in 2022 at "ACS nano"

DOI: 10.1021/acsnano.2c03550

Abstract: Developing effective intelligent nanotheranostics is highly desirable for cancer treatment but remains challenging. In this study, an acidic tumor microenvironment-activated organosilica nanosystem, namely AD-Cu-DOX-HA, is straightforwardly constructed, which is composed of aggregation-induced emission (AIE)-active photosensitizer,… read more here.

Keywords: tumor; stone four; ion; copper ion ... See more keywords
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An Ultrasensitive Fluorescence Sensor with Simple Operation for Cu2+ Specific Detection in Drinking Water

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Published in 2018 at "ACS Omega"

DOI: 10.1021/acsomega.7b01497

Abstract: Whether short-term or long-term, overexposure to an abnormal amount of copper ion does significant harm to human health. Considering its nonbiodegradability, it is critical to sensitively detect copper ion. Herein, a novel fluorescent strategy with… read more here.

Keywords: water; copper ion; detection; specific detection ... See more keywords
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Ultrasensitive fluorescent probe for copper ion based on cadmium selenide/cadmium sulfide quantum dots capped with dimercaprol

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Published in 2018 at "Spectroscopy Letters"

DOI: 10.1080/00387010.2018.1452266

Abstract: ABSTRACT A new ultrasensitive copper ion fluorescent probe based on cadmium selenide/cadmium sulfide quantum dots capped with dimercaprol is described. Dimercaprol was bonded to the quantum dots through a surface ligand exchange to form dimercaprol-capped… read more here.

Keywords: copper ion; copper; cadmium; dimercaprol ... See more keywords
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Engineering Saccharomyces cerevisiae‐based biosensors for copper detection

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Published in 2022 at "Microbial Biotechnology"

DOI: 10.1111/1751-7915.14105

Abstract: Heavy metals, that is Cu(II), are harmful to the environment. There is an increasing demand to develop inexpensive detection methods for heavy metals. Here, we developed a yeast biosensor with reduced‐noise and improved signal output… read more here.

Keywords: copper; detection; engineering saccharomyces; copper ion ... See more keywords
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Tapered Mach-Zehnder interferometer based on PbS quantum dots modified by polymers for copper ion sensing.

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Published in 2021 at "Applied optics"

DOI: 10.1364/ao.425453

Abstract: An optical fiber interferometer coated with PbS quantum dots (QDs) was developed for copper ion (${{\rm{Cu}}^{2 +}}$) detection. The QDs were modified by a multifunctional copolymer that enabled QD surface ligation, dispersion, and coordination with… read more here.

Keywords: quantum dots; pbs quantum; interferometer; copper ion ... See more keywords
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A New Copper Ionophore N1, N3-Bis [[3,5-Bis(Trifluoromethyl)Phenyl] Carbamothioyl] Isophtalamide for Potentiometric Sensor

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Published in 2018 at "Sains Malaysiana"

DOI: 10.17576/jsm-2018-4711-08

Abstract: A copper ion sensor based on a new bis-thiourea compound N1,N3-bis[[3,5-bis(trifluoromethyl)phenyl]carbamothioyl]isophthalamide (or TPC) as neutral carrier was investigated. The immobilization of the TPC into poly(n-butyl acrylate) (pBA) membrane via drop casting and the sensor was… read more here.

Keywords: copper ion; bis trifluoromethyl; bis bis; bis ... See more keywords