Article
Chemistry, Analytical
Henry West, Gavin E. Reid
Summary: Sterols, a class of lipid molecules, play critical functional roles in mammalian biology and are commonly analyzed using high performance liquid chromatography coupled with tandem mass spectrometry. This study explores novel approaches, including 213 nm photodissociation MS/MS and hybrid multistage-MS/MS, for improved structural characterization of sterol lipids, showing promising results in isomeric differentiation of oxysterols. The research demonstrates the potential of using UVPD-MS/MS and hybrid collision induced-MS/MS approaches for enhanced analysis of sterol lipids.
ANALYTICA CHIMICA ACTA
(2021)
Article
Polymer Science
Jianing Zhou, Jinxian Yang, Muhammad Waqas Ishaq, Lianwei Li
Summary: The study explores the difference in topology-structure-conformation relationship between linear and cyclic graft polymers, showing that cyclic graft polymers exhibit more compact conformation and suppress interchain association compared to linear graft polymers.
Article
Multidisciplinary Sciences
Peng Wang, Honghai Zhang, Xingliang Nie, Tianxiao Xu, Saihu Liao
Summary: Sulfonyl fluorides have potential applications in chemical biology and drug discovery, but their synthesis is challenging. This study presents a stable fluorosulfonyl radical reagent that enables radical fluorosulfonylation reactions through photoredox catalysis.
NATURE COMMUNICATIONS
(2022)
Article
Polymer Science
Yota Chiba, Ryo Kawatani, Yasuhiro Kohsaka
Summary: This study investigates the potential for chemical recycling of vinyl polymers using cyclic styrene derivatives as monomers. By opening the rings in the pendant groups, the main chains of the polymers can be broken and depolymerized, allowing for efficient recycling.
Review
Spectroscopy
Rayan Murtada, Shane Finn, Jinshan Gao
Summary: Despite recent advances in glycomics, glycan characterization remains a challenge. Various glycan-tagging reagents with different chemistries have been developed to address this issue. These reagents can generate informative cleavages at glycosidic bonds and provide insights into the composition and structure of glycans.
MASS SPECTROMETRY REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Lingqi Qiu, R. Graham Cooks
Summary: Microdroplets exhibit unique chemistry, including simultaneous oxidation and reduction reactions. The active reagent is identified as the water radical cation/anion pair. The coexistence of oxidative and reductive species supports the existence of a double-layer structure at the microdroplet surface.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Stephan P. Blum, Tarik Karakaya, Dieter Schollmeyer, Artis Klapars, Siegfried R. Waldvogel
Summary: This study presents a novel dehydrogenative electrochemical sulfonamide synthesis protocol for non-prefunctionalized aromatic compounds, utilizing the amidosulfinate intermediate and a highly convergent reaction with SO2 and amines. The strategy involves direct anodic oxidation and nucleophilic attack, leading to high efficiency in introducing the sulfonamide group.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Nanoscience & Nanotechnology
Alexandra J. Ramadan, Robert D. J. Oliver, Michael B. Johnston, Henry J. Snaith
Summary: This review discusses the challenges, progress, and future development strategies of methylammonium-free wide-bandgap perovskites. Despite their attractiveness in tandem photovoltaics, wide-bandgap perovskites without methylammonium perform worse than their counterparts with methylammonium and narrower bandgap. Researchers need to address the energy-loss pathways that currently constrain their performance.
NATURE REVIEWS MATERIALS
(2023)
Review
Engineering, Environmental
Ye Qiu, Tong Zhang, Ping Zhang
Summary: This article reviews the influence of free radicals on the fate and environmental behaviors of microplastics (MPs) and discusses the control and degradation strategies of MPs based on free radical-associated technologies. Additionally, the limitations of current research are pointed out, and future research directions are suggested to better understand the interaction between MPs and free radicals and mitigate their risks.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Multidisciplinary Sciences
Toyohisa Fujita, Hiromi Kurokawa, Zhenyao Han, Yali Zhou, Hirofumi Matsui, Josiane Ponou, Gjergj Dodbiba, Chunlin He, Yuezou Wei
Summary: The research demonstrated that using CO2 and H-2 nanobubbles in water and alcohol aqueous solutions can reduce the levels of hydroxyl radicals and superoxide anions, potentially providing a disinfecting effect against bacteria.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Multidisciplinary
Catarina S. M. Martins, Alberto N. Araujo, Luis Pleno de Gouveia, Joao A. Prior
Summary: This work presents an optimized methodology for reducing silver ions in silver nanoparticle suspensions obtained from laboratory procedures. The methodology involves the use of cation exchange resins to minimize the presence of silver ions, allowing for the biological testing of purified nanoparticles.
Article
Chemistry, Multidisciplinary
Xiangyu Zhang, Xinfeng Zhu, Yan Cao, Kunming Zhang, Yongchun Huang, Feng Yang, Xian'e Ren
Summary: This study investigated the hydroxyl radical yield of a cavitation bubble during the degradation of chitosan with hydrodynamic cavitation, using numerical simulation. The results showed that various geometric and operating parameters significantly influenced the production of hydroxyl radicals, providing a basis for regulating chitosan degradation with hydrodynamic cavitation.
Review
Chemistry, Multidisciplinary
Martin Tomanik, Ian Tingyung Hsu, Seth B. Herzon
Summary: Fragment coupling reactions that form carbon-carbon bonds are important transformations in synthetic design. In recent years, there has been an increase in fragment couplings proceeding via carbanionic and open-shell intermediates. These reactions provide predictability and reliability, while also offering valuable lessons for students.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Michael Muzika, Nadav Genossar-Dan, Dana Fux, Shani Har Lavan, Uri Zamir, Illya Rozenberg, Patrick Hemberger, Joshua H. Baraban
Summary: Acrolein is a common pollutant that poses health concerns, but its generation processes are still not well understood. This study investigates the decomposition of acrolein at high temperatures and identifies reactive species produced during the early stages of the reaction.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Jun Jiang, Ke-Li Wang, Xiao Li, Chao Wu, Hong-Tao Ji, Xiang Chen, Wei-Min He
Summary: A facile and efficient electrochemical method has been established for the sustainable synthesis of selanyl phenanthrenes and selanyl polycyclic heteroaromatics, achieving high yields under mild conditions without the use of additives, chemical oxidants, or catalysts.
CHINESE CHEMICAL LETTERS
(2023)