Results 61 to 70 of about 16,687 (196)

Rational design of cyclopropane-based chiral PHOX ligands for intermolecular asymmetric Heck reaction

Beilstein Journal of Organic Chemistry, 2014
A novel class of chiral phosphanyl-oxazoline (PHOX) ligands with a conformationally rigid cyclopropyl backbone was synthesized and tested in the intermolecular asymmetric Heck reaction.
Marina Rubina, William M. Sherrill, Alexey Yu. Barkov, Michael Rubin   +3 more
doaj   +1 more source

Synergistic extraction of critical metals from the oxalic leachate of spent FCC catalyst

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study introduces an improved hydrometallurgy process utilizing a synergistic approach to improve metal recovery from secondary sources of critical metals. It provides a more efficient alternative to traditional single‐extractant methods for separating critical metals from spent refinery catalysts.
Silindile Gumede, Amir H. Mohammadi, Mbuyu G. Ntunka   +2 more
wiley   +1 more source

INTOXICAÇÃO POR DICLORVÓS E CIPERMETRINA EM BOVINOS EM MATO GROSSO – RELATO DE CASO

Ciência Animal Brasileira, 2010
An outbreak of organophosphorus and pyrethroid insecticidepoisoning in cows in the city of Cuiabá, Mato Grosso, isdescribed. Eleven from 25 animals died.
Fábio de Souza Mendonça, Sílvio Henrique Freitas, Renata Gebara Sampaio Dória, Lázaro Manoel de Camargo, Joaquim Evêncio-Neto   +4 more
doaj  

Oxidant‐Expedited Synthesis of H‐Phosphonates

European Journal of Organic Chemistry, EarlyView.
An exceptionally mild method for synthesis of alkyl and aryl H‐phosphonates from phosphites is reported, requiring only water and O2 (including air) as reagents. Mechanistic experiments indicate that the role of O2 (and other oxidants) in the transformation is to promote a radical mechanism, and that H2O functions to provide both the hydrogen and the ...
Dara T. Curran, Aidan C. Cregan, Niamh E. O’Dwyer, Jimmy Muldoon, Peter A. Byrne   +4 more
wiley   +1 more source

Electronic Nose‐Based Methanol Feedback Precision Control Strategy for High‐Yield Alkaline Phosphatase Fermentation by Hansenula polymorpha

Food Bioengineering, EarlyView.
Establishment of Closed‐Loop Methanol Feedback Precision Control System for Alkaline Phosphatase by Hansenula polymorpha. The electronic nose screened model for methanol detection as the core technical logic of online gas quantification. Methanol feedback control strategy for greatly elevating alkaline phosphatase production.
Jian‐Guang Liang, Shao‐Jie Wang, Jia‐Jia Wang, Muhammad Safwan Siddique, Zishu Zhang, Ciying Xiao, Ze‐Jian Wang   +6 more
wiley   +1 more source

Research progress in photo‐controlled radical involved luminescence materials

FlexMat, EarlyView.
This review systematically dissects radical generation mechanisms, triplet‐exciton photophysics, material design strategies, and cutting‐edge applications in smart encryption, environmental sensing, and 3D printing. Abstract In recent years, photo‐controlled radical room‐temperature phosphorescent (RTP) materials have shown significant application ...
Sichen Meng, Shengwen Bao, Xiang Li, Shuaishuai Lu, Danfeng Ye, Ying Liu, Deli Sun, Hongwei Wu, Liangliang Zhu   +8 more
wiley   +1 more source

Biosensors for Food Safety and Adulteration Monitoring: Applications, Smart Packaging Integration, and Pathways to Intelligent, Field‐Deployable Detection Systems

Food Safety and Health, EarlyView.
Biosensors enable rapid, sensitive, and portable detection of pathogens, contaminants, allergens, and food adulteration. Integration with smart packaging, smartphones, IoT, and machine learning supports real‐time monitoring and intelligent decision‐making, whereas microfluidics, biodegradable materials, explainable AI, and blockchain offer pathways ...
Mohima Akther Any, Abid Hassan Arnab, Liza Akter, Yusuf Chowdhury, Md. Hassan Bin Nabi, Md Abu Rayhan, Nazmul Islam, Wahidu Zzaman   +7 more
wiley   +1 more source

Frontiers in transition‐metal single‐atom electrocatalysts: Design tactics, mechanistic regulation, and electrochemical sensing technologies

InfoMat, EarlyView.
This review offers an overview of recent advances in the fundamental properties, synthesis methods, and structural optimization of transition‐metal single‐atom electrocatalysts for electrochemical sensing. It also provides a comprehensive summary of the emerging applications in electrochemical assays based on these materials, along with key challenges ...
Yue Cao, Bo‐Yu Chen, Yiru Sheng, Haoyuan Song, Linan Zhu, Xiaohan Yang, Yuehe Lin, Wenlei Zhu, Yang Zhou   +8 more
wiley   +1 more source

Analysis of Carbohydrates and Glycoconjugates by Matrix‐Assisted Laser Desorption/Ionization Mass Spectrometry: An Update for 2023–2024

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The use of MALDI mass spectrometry for the analysis of carbohydrates and glycoconjugates is a well‐established technique and this comprehensive review is the twelfth update of the original article published in 1999 and brings coverage of the literature to the end of 2024.
David J. Harvey
wiley   +1 more source

Mass Spectrometry in Authentication and Forensic Approaches for Determining the Origin of Hazardous Chemicals

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Identification of a chemical agent yields insights into its physicochemical properties. By examining the intrinsic characteristics and environment of a compound, information about its history can be gathered. The main objective of authentication/forensic approaches to chemicals is to trace the history of the compound's origin, regardless of ...
Carla Orlandi, Grégoire Delaporte, Christine Albaret, Emmanuel Joubert, Anne Bossée, Emilien L. Jamin, Laurent Debrauwer   +6 more
wiley   +1 more source