Results 21 to 30 of about 524,301 (215)

Concentration-regulated multi-color fluorescent carbon dots for the detection of rifampicin, morin and Al3+

open access: yesMaterials Today Advances, 2023
Carbon dots have many new and interesting phenomena, and the concentration dependent luminescence wavelength is an intriguing one. Herein, nitrogen-sulfur co-doped carbon dots (NSCDs) diluted to different concentrations, the high concentration of G-NSCDs
Xiaodan Tang   +10 more
doaj   +1 more source

Chelation-Accelerated Sequential Decarbonylation of Formate and Alkoxycarbonylation of Aryl Halides Using a Combined Ru and Pd Catalyst

open access: yes, 2016
An efficient cooperative catalyst system for the coupling of a wide range of organic electrophiles with chelated formate is reported to afford aryl and alkenyl esters by the simultaneous employment of Ru and Pd catalyst, in which ruthenium first promotes
Moon-Gun Choi (677628)   +4 more
core   +2 more sources

Sequential Detection of Palladium and Chromium Oxyanion by a Fluorescein Based Chemosensor in Mixed Aqueous Media

open access: yesChemosensors, 2019
A new highly selective chemosensor, based on fluorescein-allyloxy benzene conjugate 1, was developed for the sequential detection of palladium and chromium oxyanions in a mixed aqueous media, and was studied by UV-visible and fluorescence spectroscopy ...
Aasif Helal
doaj   +1 more source

Levels of Organic Compounds, Number of Microorganisms and Cadmium Accumulation in Festuca ovina Hydroponic Culture [PDF]

open access: yesPolish Journal of Microbiology, 2016
Understanding the microbiological, biochemical and physiological aspects of phytoremediation of soil and water environments polluted to different degrees with heavy metals has very important theoretical and practical implications.
Małgorzata Majewska, Anna Słomka
doaj   +1 more source

Anti-Carbometalation of Homopropargyl Alcohols and Their Higher Homologues via Non-Chelation-Controlled Syn-Carbometalation and Chelation-Controlled Isomerization†

open access: yes, 2016
Anti-Carbometalation of Homopropargyl Alcohols and Their Higher Homologues via Non-Chelation-Controlled Syn-Carbometalation and Chelation-Controlled Isomerization†
Shengming Ma (1312428)   +1 more
core   +1 more source

Quantum Chemical Investigation on the Antioxidant Activity of Neutral and Anionic Forms of Juglone: Metal Chelation and Its Effect on Radical Scavenging Activity

open access: yesJournal of Chemistry, 2017
The chelation ability of divalent Mg, Ca, Fe, Co, Ni, Cu, Zn, and monovalent Cu ions by neutral and anionic forms of juglone has been investigated at DFT/B3LYP/6-31+G(d,p) level of theory in gas and aqueous phases.
Aymard Didier Fouegue Tamafo   +4 more
doaj   +1 more source

Ketone synthesis via rhodium-catalyzed traceless chelation-controlled hydroacylation reactions [PDF]

open access: yes, 2018
This thesis documents the development of rhodium-catalyzed traceless chelation-controlled hydroacylation reactions for the synthesis of a variety of ketone products.

core   +1 more source

Smaller is better: nanobodies meet NMR

open access: yesFEBS Letters, EarlyView.
Nanobodies are single‐domain antigen‐binding fragments derived from camelid heavy chain antibodies. Their small size, high stability, and exceptional specificity make nanobodies uniquely useful probes for NMR studies of protein dynamics, transient conformational states, and protein–protein interactions.
Oleg Y. Dmitriev
wiley   +1 more source

Metal ion chelation of poly(aspartic acid): From scale inhibition to therapeutic potentials

open access: yes, 2023
Poly(aspartic acid) (PASP) is a biodegradable, biocompatible water-soluble synthetic anionic polypeptide. PASP has shown a strong affinity and thus robust complexation with heavy and alkaline earth metal ions, from which several applications are ...
Sirous, Fariba   +7 more
core   +1 more source

Somatostatin receptor 4 (SSTR4) is a tumor suppressor in cutaneous and head & neck squamous cell carcinomas

open access: yesMolecular Oncology, EarlyView.
This study identifies somatostatin receptor 4 (Sstr4) as a critical tumor suppressor against skin and head/neck cancers (HNSCC, cSCC, and BCC). The loss of Sstr4 removes a check on cell growth, causing hyperactivation of the MAPK‐ERK signaling pathway (↑).
Ali Taqvi   +6 more
wiley   +1 more source

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