Results 41 to 50 of about 140,762 (162)
Carbamate‐Directed peri‐CH Alkynylation: Application to the Synthesis of Zethrenes and Pyranthrenes
ChemistryEurope, Volume 4, Issue 5, May 2026.The Rh(III)‐catalyzed regioselective alkynylation of 1‐pyrenyl and 1‐naphthyl carbamates with bromoacetylenes enables the selective installation of an alkyne at the peri position of readily accessible amino‐substituted polycyclic aromatic hydrocarbons (PAHs).
Xiaoqing Shao +4 more
wiley +1 more source
Estudo das Propriedades do Pseudofruto do Cajueiro na Adsorção de Cr (VI)
Orbital: The Electronic Journal of Chemistry, 2013 In this study, the Cr (VI) adsorption properties by cashew (Anacardium occidentale L.) were studied in a batch system. The effects of pH (5.0 and 7.0), drying process – S (oven-dried and lyophilized), particle size – P (0.10 – 0.25 and 0.25 – 0.84 mm ...
Thiago C. Medeiros +3 more
doaj +1 more source
Temperature response of luminescent tris(bipyridine)ruthenium(II)-doped silica nanoparticles [PDF]
, 2013 Nanoparticle-based temperature imaging is an emerging field of advanced applications. Herein, the sensitivity of the phosphorescence of tris(bipyridine)ruthenium(II)-doped silica nanoparticles towards temperature is studied.
Bordoni, Andrea Veronica +6 more
core +1 more source
Quantifying Carboxylate Burial in Synthetic Hydrophobic Pockets in Water
ChemistryEurope, Volume 4, Issue 5, May 2026.How “buried” is a buried ion? Double mutant cycles quantify the cost of placing a carboxylate within a deep aromatic calix[4]pyrrole pocket in water. The penalty is only +1.3 to +3.0 kcal·mol−1 because water penetrates through cracks and the portal, creating a wet, high‐dielectric microenvironment.
Esteban A. Valencia +4 more
wiley +1 more source
Scientific Reports, 2023 We present the development of an electrochemical sensor towards melatonin determination based on the synergistic effect between MoS2 nanosheets and cucurbit[8]uril.
Rut Martínez-Moro +6 more
doaj +1 more source
Análisis de factores genéticos de riesgo asociados al estrés oxidativo en miocardiopatía chagásica crónica [PDF]
, 2015 INTRODUCCIÓN: Diferentes estudios sugieren que el huésped podría responder al estrés oxidativo inducido por el Trypanosoma cruzi (Tc), mediante la activación de la defensa antioxidante.
Beloscar, Juan +5 more
core
Phosphorylation regulates the bound structure of an intrinsically disordered protein: The p53-TAZ2 case [PDF]
, 2016 Disordered regions and Intrinsically Disordered Proteins (IDPs) are involved in critical cellular processes and may acquire a stable three-dimensional structure only upon binding to their partners.
Ithuralde, Raúl Esteban +1 more
core +4 more sources
Experimental Observation of a Calcium Silicon Double Carbonate
Angewandte Chemie, Volume 138, Issue 9, 23 February 2026.High‐pressure and ‐temperature reactions between Ca5(Si2O7)(CO3)2 tilleyite and CO2 carbon dioxide yield the first experimental evidence of the double carbonate Ca2Si(CO3)4 and a new Ca2(C4O10) phase containing tetrahedral [CO4] units. These findings reveal unexpected carbonate chemistry and highlight pathways for carbon incorporation under mantle ...
Benedito Donizeti Botan‐Neto +6 more
wiley +2 more sources
Eclética Química, 2018 The analyte additions method was applied for sodium determination in fuel ethanol by atomic emission spectrometry. Graphics involving emission intensity versus analyte concentration in the 0 – 0.300 mg Na L-1 interval concentration range contaning 2.1 g ...
Adriana Paiva de Oliveira +3 more
doaj +1 more source
Electroanalysis, Volume 38, Issue 4, April 2026.We developed an impedimetric biosensor by electrochemically oxidizing screen‐printed carbon electrodes, allowing the covalent immobilization of Concanavalin A for selective holotransferrin detection. After the target protein is captured, the device monitors changes in charge–transfer resistance using electrochemical impedance spectroscopy.
A. Hernández Martínez +2 more
wiley +1 more source