Results 121 to 130 of about 4,912 (248)

High resolution modeling of gaseous methylamines over a polluted region in China: Source-dependent emissions and implications to spatial variations

open access: yes, 2018
. Amines have received increasing attention in recent years because of their potential role in new particle formation in the atmosphere and their impact on aerosol chemistry.
Qi Yu   +12 more
core   +1 more source

Erasable FAP Targeted Spray‐On Probe for Fluorescence‐Guided Surgery

open access: yesAdvanced Science, Volume 13, Issue 32, 9 June 2026.
We present the first erasable spray‐on probe for fluorescence‐guided surgery. Following topical delivery, FAP‐FLASH550 targets fibroblast activation protein–expressing stromal cells, delineating tumor margins with high tumor‐to‐background ratios. A 365 nm UV light pulse rapidly erases fluorescent signals through triazene photodegradation and subsequent
Zachary Rabinowitz   +2 more
wiley   +1 more source

Effect of Urea and Methylamine on Plasmin.

open access: yesExperimental Biology and Medicine, 1957
Conclusions1. Preparation of partially purified and highly active human plasmin free of streptokinase is described. 2. In neutral solutions plasmin undergoes rapid auto-digestion at 37°C. 3. Autolysis of plasmin can be inhibited by concentrations of urea and methylamine which inhibit digestion of protein by plasmin.
openaire   +2 more sources

An In‐Line Machine Vision–Based Profilometry Tool for Non‐Destructive Thickness Assessment of Perovskite Films

open access: yesAdvanced Electronic Materials, Volume 12, Issue 11, 8 June 2026.
This work proposes a machine‐vision‐based tool for predicting the thickness of in‐line deposited perovskite films, enabling real‐time decision making to control deposition parameters. The workflow integrates perovskite deposition and annealing with uniformity analysis and minimodule fabrication.
Juan Pablo Velásquez   +9 more
wiley   +1 more source

Distributions of glycine betaine and the methylamines in coastal waters: analytical developments and a seasonal study

open access: yes, 2015
A novel technique comprising solid phase microextraction and gas chromatography has been developed to analyse the three methylamines (monomethylamine, dimethylamine and trimethylamine) at the concentrations expected in seawater.
Cree, Charlotte
core  

Deciphering pH Behavior in Deep Eutectic Solvents: Synergizing Experimental Data and Computational Modeling

open access: yesChemCatChem, Volume 18, Issue 11, 15 June 2026.
Proton activity in deep eutectic solvents (DESs) remains difficult to quantify. Here, pH in hydrophilic and hydrophobic DESs is probed by combining glass electrode measurements with ultraviolet–visible (UV–vis) pH indicators and Gaussian process (GP) machine learning (ML).
Andrea Puglisi   +12 more
wiley   +1 more source

INFRARED MATRIX ISOLATION STUDY OF THE REACTION OF $B_{2}H_{6} $ WITH $NH_{3}$ AND THE METHYLAMINES.

open access: yes, 1991
Author Institution: Department of Chemistry, University of CincinnatiThe reaction products arising from the pyrolysis of mixtures of $B_{2}H_{6} $ with $NH_{3}$ and the methylamines have been isolated and characterized in argon matrices at 14 K.
Carpenter, John D., Ault, Bruce S.
core  

Redox‐Neutral and Diastereoselective Cross‐Pinacol Coupling of Pyridyl Ketones With Amine‐Derived Aldehydes

open access: yesChemistryEurope, Volume 4, Issue 6, June 2026.
A redox‐neutral strategy enables cross‐selective pinacol coupling between pyridyl ketones and amine‐derived aldehydes using a samarium catalyst and visible‐light antenna ligand, affording the desired cross‐coupling products in high yields with excellent diastereoselectivity.
Takahito Kuribara   +3 more
wiley   +1 more source

Diet-induced metabolic changes of the human gut microbiome: importance of short-chain fatty acids, methylamines and indoles

open access: yes, 2019
International audienceThe human gut is a home for more than 100 trillion bacteria, far more than all other microbial populations resident on the body's surface.
Chilloux, Julien   +6 more
core   +1 more source

Revealing Perovskite Crystallization and Degradation With Grazing‐Incidence Wide‐Angle X‐Ray Scattering: Kinetics, Phase Analysis and Modulation Strategies

open access: yesInformation &Functional Materials, Volume 3, Issue 2, Page 101-126, June 2026.
The ability to probe surface‐to‐bulk structural gradients and detect minority phases makes GIWAXS indispensable for understanding the complex crystallization kinetics that ultimately determine perovskite film quality and device performance. By monitoring the nucleation, growth, and phase transition processes, GIWAXS provides critical insights for ...
Zhiyuan Sun   +3 more
wiley   +1 more source

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