The main goal of this review is to provide a brief overview of chiral separations to researchers who are versed in the area of analytical separations but unfamiliar with chiral separations. To researchers who are not familiar with this area, there is currently a bewildering array of commercially available chiral columns, chiral derivatizing reagents, and chiral selectors for approaches that span the range of analytical separation platforms (e.g., high-performance liquid chromatography, gas chromatography, supercritical-fluid chromatography, and capillary electrophoresis). This review begins with a brief discussion of chirality before examining the general strategies and commonalities among all of the chiral separation techniques. Rather than exhaustively listing all the chiral selectors and applications, this review highlights significant issues and differences between chiral and achiral separations, providing salient examples from specific classes of chiral selectors where appropriate.
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http://dx.doi.org/10.1146/annurev.anchem.111808.073635 | DOI Listing |
Angew Chem Int Ed Engl
January 2025
Xiamen University, Department of Chemistry, Siminnan Road 422, 361005, Xiamen, CHINA.
Quintulene is a quintuply symmetrical cycloarene with a positively curved molecular geometry. First described by Staab and Sauer in 1984, its successful synthesis was not achieved until 2020. Due to the challenges posed by its positive curvature, structural extensions of quintulene have been studied rarely.
View Article and Find Full Text PDFACS Omega
January 2025
School of Bio-Chemical Engineering and Technology, Sirindhorn International Institute of Technology, Thammasat University, 99 Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand.
The integration of molecular docking and AM1 calculations has elucidated the complexation behavior of butylone enantiomers with methylated β-cyclodextrin derivatives. Our study reveals that butylone can adopt two distinct conformations within the β-cyclodextrin cavity, with one conformation being preferentially stabilized due to its favorable binding energy. This conformation preference is influenced by the methylation at the O2, O3, and O6 positions of β-cyclodextrin, which significantly affects complex stability and solvation properties.
View Article and Find Full Text PDFAdv Mater
January 2025
MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
2D Dion-Jacobson (DJ) chiral perovskite materials exhibit significant promise for developing high-performance circularly polarized light (CPL) photodetectors. However, the inherently thick nature of DJ-phase 2D perovskite single crystal limits their ability to differentiate CPL photons with the two opposite polarization states. In addition, the growth of DJ-phase perovskite single crystal thin films (SCTFs) has proven challenging due to the strong interlayer electronic coupling.
View Article and Find Full Text PDFChirality
February 2025
Daicel Chiral Technologies, West Chester, Pennsylvania, USA.
The influence of additives and modifiers on the chiral HPLC separation of the nicotine enantiomers using UV/Vis detection is discussed. Selected alcohols as modifiers and selected amines as additives were found to have a significant effect on the resolution and retention times of nicotine enantiomers even to the point of eliminating component elution. Systematic variations in the concentration of ethanol, methanol, and isopropanol, as modifiers, along with variations in the concentration of diethylamine, triethylamine, tributylamine, ethylenediamine, isopropylamine, as additives, revealed that the average resolution (R) of the nicotine enantiomers ranged from 2.
View Article and Find Full Text PDFJ Colloid Interface Sci
January 2025
Department of Oncology, the First Affiliated Hospital with Nanjing Medical University, Nanjing, 210029, PR China. Electronic address:
In recent years, the chiral biological effects of nanomedicines have garnered significant interest. Research has focused on understanding how material chirality affects cellular transcription and metabolism. Stress granules, which are membraneless organelles formed through liquid-liquid phase separation of G3BP1 proteins and related compartments, have been extensively studied and are closely associated with cellular damage repair and metabolism.
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