Results 51 to 60 of about 2,155,205 (328)

Chiral Ionic Liquids:  Synthesis, Properties, and Enantiomeric Recognition [PDF]

, 2008
We have synthesized a series of structurally novel chiral ionic liquids which have a either chiral cation, chiral anion, or both. Cations are an imidazolium group, while anions are based on a borate ion with spiral structure and chiral substituents. Both
Lindeman, Sergey V., Tran, Chieu D., Yu, Shaofang   +2 more
core   +1 more source

Enantiomers of Single Chirality Nanotube as Chiral Recognition Interface for Enhanced Electrochemical Chiral Analysis.

Analytical Chemistry, 2019
Although separation of single-walled carbon nanotubes (SWCNTs) according to their helicity and handedness has been attracting tremendous interest recently, exploration of the left- and right-handed SWCNT enantiomers (defined as "M" and "P") to chiral ...
Chun-Hui Pu, Yunxia Xu, Qi Liu, Anwei Zhu, G. Shi   +4 more
semanticscholar   +1 more source

Enhanced Chiral Recognition by Cyclodextrin Dimers [PDF]

International Journal of Molecular Sciences, 2011
In this article we investigate the effect of multivalency in chiral recognition. To this end, we measured the host-guest interaction of a β-cyclodextrin dimer with divalent chiral guests. We report the synthesis of carbohydrate-based water soluble chiral guests functionalized with two borneol, menthol, or isopinocampheol units in either (+) or ...
Voskuhl, Jens, Schaepe, Kira, Ravoo, Bart Jan   +2 more
openaire   +2 more sources

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

Study on the Enantiomeric Recognition of Chiral Ureas Containing Amino Acid Units

Chinese Journal of Magnetic Resonance
Recognition of chiral molecules is critical for the chemical and pharmaceutical industries. Three kinds of urea containing chiral centers (L-Phe-U, L-Ala-U and L-Val-U) were synthesized as chiral solvating agents (CSAs) to identify chiral organic ...
KOU Xinhui, ZHANG Yubing
doaj   +1 more source

Piezoresistive Monitoring of Carbon Nanomaterial‐Reinforced Epoxy Composites Under Cyclic and Fatigue Loading: A Review

Advanced Engineering Materials, EarlyView.
Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente, J. Nunes‐Pereira, A. P. Silva, P. N. B. Reis   +3 more
wiley   +1 more source

Visualization of enantiorecognition by excited-state conformation modulation

Nature Communications
Chiral purity is crucial in life sciences, emphasizing the importance of precise enantiomeric identification and the development of analytical techniques.
Zizhao Huang, Ying Hu, Jie Sun, Zhenyi He, Tao Jiang, He Tian, Xiang Ma   +6 more
doaj   +1 more source

Supraparticles Composed of Graphitic Carbon Nitride Nanoparticles and Silica‐Supported Horseradish Peroxidase as Customizable Hybrid Catalysts for Photo‐Biocatalytic Cascade Reactions in Continuous Flow

Advanced Functional Materials, EarlyView.
Herein presented supraparticles combine the nanoparticulate photocatalyst graphitic carbon nitride with the enzyme horseradish peroxidase, which is immobilized on silica nanoparticles. In an optimized compatibility range, both catalysts operate effectively within the hybrid supraparticles and catalyze a cascade reaction consisting of the photocatalytic
Bettina Herbig, Egzon Cermjani, Doris Hanselmann, Johannes Prieschl, Angelika Schmitt, Michael S. Moritz, Christian Papp, Greta Nölke, Stefano Di Fiore, Christoph Deckers, Thomas H. Rehm, Susanne Wintzheimer   +11 more
wiley   +1 more source

A chiral helical self-assembly for electrochemical recognition of tryptophan enantiomers

Electrochemistry Communications, 2019
Molecular self-assembly has been regarded as a promising strategy for the construction of chiral sensing devices. Here, (1R,2R)-N,N-didodecylcyclohexane-1,2-dicarboxamide (DDC) was synthesized and then self-assembled in alcohol, and a chiral helical ...
Jiapei Yang, Datong Wu, Gao-Chao Fan, Linzheng Ma, Yongxin Tao, Yong Qin, Yong Kong   +6 more
doaj   +1 more source

Doped Polythiophene Chiral Electrodes as Electrochemical Biosensors

Electrochem, 2021
π-conducting materials such as chiral polythiophenes exhibit excellent electrochemical stability in doped and undoped states on electrode surfaces (chiral electrodes), which help tune their physical and electronic properties for a wide range of uses.
M’hamed Chahma
doaj   +1 more source