Results 1 to 10 of about 99,110 (119)

Theoretical Study on Fluorinated Derivatives of Sulfolane, Cyclopentanone, and Gamma-Butyrolactone

Molecules, 2023
In this paper, fluorinated compounds based on sulfolane, cyclopentanone, and gamma-butyrolactone are studied computationally, focusing on their applicability in electrochemical devices and acid–base-related studies.
Sofja Tshepelevitsh, Agnes Kütt, Ivo Leito   +2 more
doaj   +1 more source

The distribution and metabolism of hexabromocyclododecane isomers varies in the tissues of Nibea albiflora

Frontiers in Environmental Science, 2023
Hexabromocyclododecanes (HBCDs), as brominated flame retardants, have increasingly drawn concern due to their detection in various marine organisms in recent years.
Suping Song, Suping Song, Xiumei Sun, Xiumei Sun, Xin Cheng, Xin Cheng, Xijian Peng, Qing Hao, Qing Hao, Hongmei Hu, Hongmei Hu, Jian Zhu, Jian Zhu, Tiejun Li, Tiejun Li, Yuanming Guo, Yuanming Guo   +16 more
doaj   +1 more source

Stereospecificity of Ginsenoside AD-1 and AD-2 Showed Anticancer Activity via Inducing Mitochondrial Dysfunction and Reactive Oxygen Species Mediate Cell Apoptosis

Molecules, 2023
In this paper, the anti-cancer activity and molecular mechanisms of the isomers of AD-1 and AD-2 (20(R)-AD-1, 20(R)-AD-2, 20(S)-AD-1 and 20(S)-AD-2) were investigated.
Xude Wang, Meng Ding, Hong Zhao, Mengru Zhou, Xuan Lu, Yuanyuan Sun, Qinggao Zhang, Yuqing Zhao, Ruoyu Wang   +8 more
doaj   +1 more source

Rapid Discrimination of Citrus reticulata ‘Chachi’ by Electrospray Ionization–Ion Mobility–High-Resolution Mass Spectrometry

Molecules, 2021
A common idea is that some dishonest businessmen often disguise Citrus reticulata Blanco varieties as Citrus reticulata ‘Chachi’, which places consumers at risk of economic losses. In this work, we combined high-resolution ion mobility (U-shaped mobility
Juan Liu, Keke Wang, Yuling Li, Bowen Zhou, Kuofeng Tseng, Xiaoqiang Zhang, Yue Su, Wenjian Sun, Yinlong Guo   +8 more
doaj   +1 more source

The thermal degradation of poly(iso-butyl methacrylate) and poly(sec-butyl methacrylate) [PDF]

Journal of the Serbian Chemical Society, 2000
The non-oxidative thermal degradation of poly(iso-butyl methacrylate) and poly(sec-butyl methacrylate) was investigated by studying changes in the polymer residue. Due to the different number of β-hydrogens in their ester substituents, these two
Novaković Katarina, Katsikas Lynne, Popović Ivanka G.   +2 more
doaj   +3 more sources

Extraction, Enrichment, and LC-MSⁿ-Based Characterization of Phlorotannins and Related Phenolics from the Brown Seaweed, Ascophyllum nodosum

Marine Drugs, 2020
Phenolic components from the edible brown seaweed, Ascophyllum nodosum, have been associated with considerable antioxidant activity but also bioactivities related to human health.
J. William Allwood, Huw Evans, Ceri Austin, Gordon J. McDougall   +3 more
doaj   +1 more source

New Development in Ion Mobility Spectrometry for Analysis of Small Molecule Isomers [PDF]

Zhipu Xuebao, 2022
With the rapid development of modern detection technology and scientific research, the chemical structures and functions of isomers are constantly being revealed.
WU Fang-ling1, ZHANG Di2, XU Fu-xing1, FANG Xiang2, DING Chuan-fan1   +4 more
doaj   +1 more source

Cloning of monkey RALDH1 and characterization of retinoid metabolism in monkey kidney proximal tubule cells

Journal of Lipid Research, 2003
All-trans and 9-cis retinoic acids function as ligands for retinoic acid receptors (RARs and RXRs), which are ligand-dependent transcription factors and play important roles in development and cellular differentiation.
Helene Brodeur, Isabelle Gagnon, Sylvie Mader, Pangala V. Bhat   +3 more
doaj   +1 more source

High Percentage of Isomeric Human MicroRNA and Their Analytical Challenges

Non-Coding RNA, 2016
MicroRNA (miR) are short non-coding RNAs known to post-transcriptionally regulate gene expression, and have been reported as biomarkers for various diseases. miR have also been served as potential drug targets.
Joseph N. Mwangi, Norman H. L. Chiu
doaj   +1 more source

NMR Assignments of Six Asymmetrical N-Nitrosamine Isomers Determined in an Active Pharmaceutical Ingredient by DFT Calculations

Molecules, 2022
N-nitrosamines, which are well-known pro-mutagens, are found in drugs, pickled food and tobacco. Therefore, controlling their concentrations is very important.
Hao-Yue Guan, Yu-Fei Feng, Bai-Hao Sun, Jian-Zhao Niu, Qing-Sheng Zhang   +4 more
doaj   +1 more source