Results 11 to 20 of about 1,410 (120)

Weak X‐Ray to Visible Lights Detection Enabled by a 2D Multilayered Lead Iodide Perovskite with Iodine‐Substituted Spacer

open access: yesAdvanced Science, Volume 10, Issue 21, July 27, 2023., 2023
A single‐crystal photodetector based on a novel 2D bilayered lead iodide perovskite with iodine‐substituted spacer, (2‐iodopropylammonium)2(formamidine)Pb2I7, is successfully developed for simultaneously detecting broadband (X‐ray to visible regimes) and ultraweak (nW cm−2 or nGy s−1 scale) lights with excellent performance, which sheds light on future
Shihai You   +8 more
wiley   +1 more source

Chloride Binding Modulated by Anion Receptors Bearing Tetrazine and Urea

open access: yesChemPhysChem, Volume 24, Issue 2, January 17, 2023., 2023
Structural modifications of a simple anion receptor bearing urea and tetrazine fragments were studied in both ground and excited states. Receptor 2 shows slightly improved chloride complexation compared to the published receptor 4. Abstract Modulation and fine‐tuning of the strength of weak interactions to bind anions are described in a series of ...
Romain Plais   +11 more
wiley   +1 more source

Understanding the Effects of Binders in Gas Sorption and Acidity of Aluminium Fumarate Extrudates

open access: yesChemistry – A European Journal, Volume 28, Issue 5, January 24, 2022., 2022
A pinch of binder, a pinch of MOF: The effect of co‐extruding aluminium fumarate with either clays or silica gel binders has been investigated. Textural, microscopic, and spectroscopic techniques show the changes in porosity and surface sites, and CO2 and CH4 adsorption isotherms fitted an ideal Jensen‐Seaton adsorption model.
Miguel Rivera‐Torrente   +9 more
wiley   +1 more source

Jatropha Oil as a Substituent for Palm Oil in Biobased Polyurethane

open access: yesInternational Journal of Polymer Science, Volume 2021, Issue 1, 2021., 2021
Polyurethanes (PUs) are unique polymers that can be tailored to suit certain applications and are increasingly used in many industrial fields. Petrochemicals are still used as the main compound to synthesize PUs. Today, environmental concerns arise in the research and technology innovations in developing PUs, especially from vegetable polyols which are
Mohamad Ridzuan Amri   +5 more
wiley   +1 more source

Sampling and analysis of airborne ammonia in workplaces of China

open access: yesJournal of Occupational Health, Volume 62, Issue 1, January/December 2020., 2020
Abstract Objectives With the increasing demand for the detection of occupational hazard factors in workplaces, the national standard determination method for ammonia (sampling with absorbing solution‐analysis with Nessler reagent spectrophotometry) in the air of workplace presents many drawbacks during application in China.
Zhizhen Xu   +4 more
wiley   +1 more source

Formulation, Characterization, and In Vitro Evaluation of Transdermal Patches for Inhibiting Crystallization of Mefenamic Acid

open access: yesJournal of Drug Delivery, Volume 2017, Issue 1, 2017., 2017
The crystallization of mefenamic acid in transdermal patch is a major problem that makes the patch unstable and decreases the drug release. The additive was used to inhibit crystallization of a mefenamic acid. Among the different types of additives, polyvinylpyrrolidone (PVP) K30 and PVP K90 were studied and found to be highly effective in inhibiting ...
Jirapornchai Suksaeree   +3 more
wiley   +1 more source

Stereoselective Chemoenzymatic Synthesis Metaraminol Involving Gold‐Catalysed Alkyne Hydration and Carbonyl Biotransamination

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 16, 25 April 2026.
A chemoenzymatic synthesis of (1R,2S)‐metaraminol was developed by combining gold(I)‐catalysed alkyne hydration and stereoselective biotransamination in a sequential one‐pot process. Various phenol protection strategies were considered in oxidation‐reduction sequences, providing access to enantiopure propargylic alcohols as starting materials for ...
Lorena Escot   +2 more
wiley   +1 more source

The Influence of Molecular Structure Modifications on Vibrational Properties of Some Beta Blockers: A Combined Raman and DFT Study

open access: yesJournal of Spectroscopy, Volume 2016, Issue 1, 2016., 2016
We report results of a systematic Raman, SERS, and DFT study on four beta blocking molecules: Atenolol, Metoprolol, Propranolol, and, for the first time reported in the literature, Bisoprolol. The choice of these molecules was motivated by the structural similarities between Atenolol, Bisoprolol, and Metoprolol on one hand and by their differences ...
A. Farcaș   +6 more
wiley   +1 more source

A Programmable Semiconductor Containing Active Molecular Photoswitches Located in the Crystal's Volume Phase

open access: yesAdvanced Functional Materials, Volume 36, Issue 28, 7 April 2026.
A novel approach for the design of functional semiconductors is presented, which utilizes the excellent optoelectronic properties of layered hybrid perovskites and the possibility to introduce a molecular photoswitch as the organic spacer. This concept is successfully demonstrated on a coumarin‐based system with the possibility to change the bandgap ...
Oliver Treske   +4 more
wiley   +1 more source

Experience (Mostly Negative) with the Use of Sympathomimetic Agents for Weight Loss

open access: yesJournal of Obesity, Volume 2011, Issue 1, 2011., 2011
Sympathomimetic agents have a poor history of long‐term success in the treatment of obesity. From earlier experiences with amphetamine and its analogs, to more recent drugs with direct effects on adrenergic receptors or indirect effects from release of catecholamines or inhibition of reuptake, cardiovascular toxicity (strokes and cardiac arrhythmias ...
Mario A. Inchiosa Jr., A. Halpern
wiley   +1 more source

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