Article
Chemistry, Organic
Zhenhui Wang, Xiaofeng Li, Wei Li, Yongyong Cao, Huaifeng Li
Summary: This study introduces a metal-free reductive acyldifluoroalkylation method for synthesizing β-difluoroalkyl ketones, which can proceed at room temperature. This method overcomes the limitations of previous synthesis methods that required heating or precious metal photocatalysts/oxidants, and it exhibits mild conditions, a broad substrate scope, and late-stage functionalization, facilitated by cooperative NHC and organophotocatalysis.
ORGANIC CHEMISTRY FRONTIERS
(2023)
Review
Chemistry, Multidisciplinary
Ying Liu, Angshuman Nag, Liberato Manna, Zhiguo Xia
Summary: Lead-free halide perovskites, particularly Cs2AgInCl6 double perovskites, have attracted attention as alternatives to toxic and unstable lead-based materials due to their intriguing optical properties. Researchers are exploring various synthesis methods and alloy compositions, while also conducting computational studies to better understand the stability and photoluminescence characteristics of these materials.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Multidisciplinary Sciences
Alex Inague, Lilian Costa Alecrim, Jhonatas Sirino Monteiro, Marcos Yukio Yoshinaga, Joao Carlos Setubal, Sayuri Miyamoto, Ricardo Jose Giordano
Summary: By analyzing the lipid composition of the mouse retina, this study found that pathological angiogenesis leads to lipid remodeling and affects retinal homeostasis. The identified lipid signature could contribute to a better understanding of retinal diseases that cause vision impairment or blindness.
Article
Chemistry, Applied
Pedro Henrique Soares Cardoso, Enya Silva de Oliveira, Luciano Morais Liao, Gerlon de Almeida Ribeiro Oliveira
Summary: This study compared the lipid profile of chicken eggs produced in conventional and free-range systems using H-1 NMR. It found that free-range eggs had higher concentrations of omega-3 and omega-6 polyunsaturated fatty acids. The study also showed that a specific signal ratio could accurately classify different samples. These findings are important for quality control and fraud prevention in the egg industry.
Article
Chemistry, Multidisciplinary
Jia-Ming Jin, Wen-Cheng Chen, Ji-Hua Tan, Yang Li, Yingxiao Mu, Ze-Lin Zhu, Chen Cao, Shaomin Ji, Dehua Hu, Yanping Huo, Hao-Li Zhang, Chun-Sing Lee
Summary: In this study, a novel photo-controllable luminescent radical system (TBIQ) was reported, which showed a wide range of ratiometric color changes via light excitation. The conjugated skeleton of TBIQ was decorated with steric-demanding tertiary butyl groups, enabling dynamic intermolecular coupling for controllable behaviors. The study revealed that the planarization process of TBIQ's helicenic pseudo-planar conformation after light excitation led to the generation of radicals via intermolecular charge transfer. This photo-controllable luminescent radical system was employed for high-level information encryption, offering unique insights into molecular dynamic motion for optical manufacturing and broadening the scope of smart-responsive materials for advanced applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Huiqiang Yang, Na Chen, Zhiqiang Wang, Jinbo Liu, Jianjun Qin, Kecheng Zhu, Hanzhong Jia
Summary: This study found that the free radicals in biochar have toxic effects on soil bacteria, reducing bacterial alpha diversity and causing phosphorus limitation in the soil.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Review
Chemistry, Applied
Xiaoyong Chen, Dongxiao Sun-Waterhouse, Wanzi Yao, Xiong Li, Mouming Zhao, Lijun You
Summary: Increasing studies focus on the degradation of polysaccharides by free radicals, particularly those generated from hydrogen peroxide (H2O2). Free radicals mainly break glycosidic bonds through hydrogen abstraction, affecting degradation efficiency. Various factors such as polysaccharide and H2O2 concentration, temperature, and pH impact degradation. Additionally, free radical degradation alters physicochemical and structural properties, enhancing bioactivities like antioxidant, antitumor, and anticoagulant activities.
Article
Engineering, Environmental
You Zhang, Wenhong Fan, Xiaomin Li, Wen-Xiong Wang, Shu Liu
Summary: In this study, nanobubble technology and hydrogen water were combined for the first time to remove reactive oxygen species caused by environmental stress. Hydrogen nanobubbles showed remarkable capability in removing H2O2 and O(2)(center dot- ), and increasing the activity and expression of antioxidant enzymes.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Xin Li, Yi-Lin Wang, Can Chen, Ying-Feng Han
Summary: In this study, a series of carbene-triphenylamine hybrids with tunable emission were synthesized. These hybrids can be converted to carbon-centered luminescent radicals with blue-to-cyan emissions or nitrogen-centered luminescent radicals with orange emissions through chemical reduction or oxidation, respectively. The nitrogen-centered radicals exhibited good stability in atmospheric air.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Multidisciplinary Sciences
Toshiaki Hosaka, Takashi Nomura, Minoru Kubo, Takanori Nakane, Luo Fangjia, Shun-ichi Sekine, Takuhiro Ito, Kazutaka Murayama, Kentaro Ihara, Haruhiko Ehara, Kazuhiro Kashiwagi, Kazushige Katsura, Ryogo Akasaka, Tamao Hisano, Tomoyuki Tanaka, Rie Tanaka, Toshi Arima, Ayumi Yamashita, Michihiro Sugahara, Hisashi Naitow, Yoshinori Matsuura, Susumu Yoshizawa, Kensuke Tono, Shigeki Owada, Osamu Nureki, Tomomi Kimura-Someya, So Iwata, Eriko Nango, Mikako Shirouzu
Summary: Time-resolved serial femtosecond crystallography was used to study the structural changes and ion transfer mechanisms in anion-pumping rhodopsins. The study revealed the conformational alterations during ion transfer and ion release, as well as the halide binding site for ion transfer.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Biochemistry & Molecular Biology
V. G. Damle, K. Wu, D. J. Arouri, R. Schirhagl
Summary: Free radicals play a key role in viral infections, with varying effects on different types of viruses and radical species. They can contribute to defense against viruses or increase viral load. Therefore, antioxidants are used in the treatment of viral infections.
FREE RADICAL BIOLOGY AND MEDICINE
(2022)
Article
Agricultural Engineering
Ruizhi Xing, Xinggui Yang, Hanyue Sun, Xiaoyu Ye, Hanpeng Liao, Shuping Qin, Zhi Chen, Shungui Zhou
Summary: This study systematically investigated the production and evolution of free radicals during composting, revealing a high content of hydroxyl radicals at the thermophilic phase, which was closely related to the changes in Fe(II) and humus. Microorganisms driven iron/humus redox conversion were found to contribute to the production and dynamic changes of free radicals during composting.
BIORESOURCE TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Yingxiao Mu, Yanyan Liu, Haiyan Tian, Depei Ou, Li Gong, Juan Zhao, Yi Zhang, Yanping Huo, Zhiyong Yang, Zhenguo Chi
Summary: Photoinduced organic radicals play a crucial role in various chemical and physical processes, however, the luminescent properties of these radicals are rarely reported. A unique luminescent radical has been discovered in a simple organic crystal, generated through gentle light irradiation, showcasing rapid and reversible generation due to the twist and asymmetric conformation of the isolated molecules with weak intermolecular interactions. Additionally, a dual-channel photosensitive device with rapid response and repeatability can be fabricated based on thin film of this organic crystal, enabling photoswitching on luminescence and conducting properties.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Chemical
Lina M. Yanez M. Jaramillo, Joy H. H. Tannous, Arno de Klerk
Summary: The content of persistent free radicals in petroleum varies depending on origin and distillation fractions. The persistence of macroscopic average free radical concentration in petroleum over geological time is explained by a dynamic reaction equilibrium of free radical dissociation and association. The concentration of persistent free radicals in petroleum is influenced by changes in Gibbs free energy and temperature. The difference between straight-run petroleum and converted petroleum lies in their equilibrium state, and the concentration of persistent free radicals can change over time. Attempts to relate persistent free radical concentration to petroleum composition were inconclusive.
Article
Chemistry, Inorganic & Nuclear
Anton Kovalenko, Lyubov O. Tcelykh, Daniil Koshelev, Andrey A. Vashchenko, Dmitry M. Tsymbarenko, Alexander S. Goloveshkin, Aleksey Aleksandrov, Anatolii Burlov, Valentina V. Utochnikova
Summary: New ytterbium complexes exhibited high solubility and hole mobility, while their electron mobility and PLQY differed. Substituting a benzoyl group with a naphthoyl group increased electron mobility but decreased the quantum yield. Charge mobility was found to be more important for device efficiency than quantum yield.
DALTON TRANSACTIONS
(2022)
Correction
Biochemistry & Molecular Biology
Siew Chin Chan, Chih-Wei Tung, Chia-Wei Lin, Yun-Shiuan Tung, Po-Min Wu, Pei-Hsun Cheng, Chuan-Mu Chen, Shang-Hsun Yang
FREE RADICAL BIOLOGY AND MEDICINE
(2024)
Article
Biochemistry & Molecular Biology
Suyuan Liu, Meiling Tan, Jiangxue Cai, Chenxuan Li, Miaoxin Yang, Xiaoxiao Sun, Bin He
Summary: This study reveals that the antibiotic doxycycline effectively inhibits NLRP3 inflammasome activation by targeting mitochondrial translation and mtDNA synthesis, offering potential for the treatment of NLRP3-related diseases.
FREE RADICAL BIOLOGY AND MEDICINE
(2024)
Article
Biochemistry & Molecular Biology
Hao Liu, Nana Li, Ge Kuang, Xia Gong, Ting Wang, Jun Hu, Hui Du, Minxuan Zhong, Jiashi Guo, Yao Xie, Yang Xiang, Shengwang Wu, Yiling Yuan, Xinru Yin, Jingyuan Wan, Ke Li
Summary: Protectin D1 (PTD1) improves hepatic steatosis, inflammation and fibrosis in a NASH mouse model by inhibiting the activation of TLR4 downstream signaling pathway, possibly through upregulation of IRAK-M expression, suggesting a potential new treatment for NASH.
FREE RADICAL BIOLOGY AND MEDICINE
(2024)