Functional ionic gels formed by supramolecular assembly of a novel low molecular weight anticorrosive/antioxidative gelator
摘要:
本研究报告介绍了一种新型防腐低分子量凝胶剂(LMWG),它可以通过分子间的集体相互作用(离子配对、H 键、π-π 堆积)在普通 ILs (II) 中自组装。LMWG 在结构上属于咪唑类 "离子液体",带有苯并三唑基团。它可以通过超分子组装使 IL 凝胶化,形成纤维状结构。苯并三唑基团赋予凝胶剂防腐和抗氧化性能。所获得的离子凝胶具有良好的导电性,是潜在的防腐固体电解质。抗腐蚀和抗氧化性以及触变性还使它们成为潜在的高性能半固体润滑剂,特别是用于某些电接触,可在低温下使用,并在机械剪切时液化,具有低摩擦和良好的抗磨损性能。
Functional ionic gels formed by supramolecular assembly of a novel low molecular weight anticorrosive/antioxidative gelator
摘要:
本研究报告介绍了一种新型防腐低分子量凝胶剂(LMWG),它可以通过分子间的集体相互作用(离子配对、H 键、π-π 堆积)在普通 ILs (II) 中自组装。LMWG 在结构上属于咪唑类 "离子液体",带有苯并三唑基团。它可以通过超分子组装使 IL 凝胶化,形成纤维状结构。苯并三唑基团赋予凝胶剂防腐和抗氧化性能。所获得的离子凝胶具有良好的导电性,是潜在的防腐固体电解质。抗腐蚀和抗氧化性以及触变性还使它们成为潜在的高性能半固体润滑剂,特别是用于某些电接触,可在低温下使用,并在机械剪切时液化,具有低摩擦和良好的抗磨损性能。
Palladium(II) and ruthenium(II) complexes of benzotriazole functionalized N-heterocyclic carbenes: Cytotoxicity, antimicrobial, and DNA interaction studies
benzimidazole-based rutheniumcomplexes (3c and 3d) were found as non-cytotoxic against non-cancer L-929 cell lines while performing comparable cytotoxicity against Caco-2 cancer cell lines with cisplatin. In addition, DNAinteraction studies were performed with pBR322 plasmid DNA and ctDNA and results showed that both palladium and rutheniumcomplexes have weaker ability to interact with DNA than cisplatin
In this study, six [Ag(NHC)(2)](+)[AgCl2](-) type silver complexes were synthesized by the reaction of corresponding carbene precursor and Ag2O. One [Ag(NHC)(2)]+NO3- type complex was synthesized by the anion exchange reaction of corresponding silver-NHC and NaNO3. The synthesized complexes were characterized by H-1 NMR, C-13 NMR and IR spectroscopic methods, and elemental analysis. X-ray crystal structure of 5a was also reported. Cytotoxicities of all compounds were evaluated against human breast (MCF-7) and colorectal (Caco-2) cancer cell lines and non-cancer mouse fibroblast (L-929) cell lines. All complexes performed stronger activity against both cancer cell lines than standard compound cisplatin while complex 3b performed nearly equal cytotoxicity to cisplatin against non-cancer L-929. Antimicrobial effects of all compounds were evaluated against Escherichia coli, Bacillus subtilis and Candida albicans and good activities were observed. The docking results indicated that complex 3b might be classified as druggable molecule in drug design. DNA binding study also demonstrates that 3b complex has an interaction ability to DNA. Combination of experimental and molecular docking results revealed that reported complexes are promising structures and deserve further research as anticancer drugs. (C) 2018 Elsevier Ltd. All rights reserved.
Functionalized imidazolium and benzimidazolium salts as paraoxonase 1 inhibitors: Synthesis, characterization and molecular docking studies
acknowledged as a risk for atherosclerosis and organophosphate toxicity. The present study describes the synthesis, characterization, PON1 inhibitory properties and molecular docking studies of functionalized imidazolium and benzimidazolium salts (1a–5g). The structures of all compounds were elucidated by IR, NMR, elemental analysis and structures of compounds 2b and 2c were characterized by single-crystal
Functional ionic gels formed by supramolecular assembly of a novel low molecular weight anticorrosive/antioxidative gelator
作者:Meirong Cai、Yongmin Liang、Feng Zhou、Weimin Liu
DOI:10.1039/c1jm12010g
日期:——
The present work reports a novel anticorrosive low molecular weight gelator (LMWG) that can self-assemble in normal ILs (II) through collective intermolecular interactions (ion pairing, H-bonding, π–π stacking). The LMWG is structurally imidazolium type “ionic liquid” bearing benzotriazole group. It can gelate ILs via supramolecular assembly to form a fibrous structure. The benzotriazole group endows the anticorrosion and antioxidation property of the gelator. The obtained ionic gels have good conductivity, making them potential anticorrosive solid electrolytes. The anticorrosion and antioxidation together with the thixotropic character also make them potential high performance semi-solid lubricants, especially for some electrical contacts, that can be used at low temperatures and liquify upon mechanical shearing with low friction and good antiwear property.
本研究报告介绍了一种新型防腐低分子量凝胶剂(LMWG),它可以通过分子间的集体相互作用(离子配对、H 键、π-π 堆积)在普通 ILs (II) 中自组装。LMWG 在结构上属于咪唑类 "离子液体",带有苯并三唑基团。它可以通过超分子组装使 IL 凝胶化,形成纤维状结构。苯并三唑基团赋予凝胶剂防腐和抗氧化性能。所获得的离子凝胶具有良好的导电性,是潜在的防腐固体电解质。抗腐蚀和抗氧化性以及触变性还使它们成为潜在的高性能半固体润滑剂,特别是用于某些电接触,可在低温下使用,并在机械剪切时液化,具有低摩擦和良好的抗磨损性能。