Results 231 to 240 of about 107,976 (280)

Resolution of enantiomers by high pressure liquid chromatography

, 1981
Sheryl Davis
openalex   +1 more source

Quantitative Analysis of Amino Acid Enantiomers in Human Saliva and the Potential for Early Warning of Diabetes [PDF]

Byungrok Min, Ziwen Xu, Zixuan Ding, Wenyu Zhang, X. F. Li   +4 more
openalex   +1 more source

Impact of Limonene Dioxide Incorporation Into DGEBA Epoxy Resins: Effect on Thermal, Rheological, Mechanical, and Dynamic Mechanical Properties

Journal of Applied Polymer Science, EarlyView.
Scheme illustrating the evolution of mechanical, thermal, and rheological properties from the 100% LDO sample to the 100% DGEBA resin sample across six studied compositions with varying LDO:DGEBA ratios. ABSTRACT This study investigates the incorporation of limonene dioxide (LDO), a bio‐based epoxide, into bisphenol A diglycidyl ether (DGEBA) epoxy ...
Francine B. Takamoto, Otávio Bianchi, Sandro C. Amico, Cesar L. Petzhold, Maurício C. D. F. Xavier, Daiane Romanzini   +5 more
wiley   +1 more source

Structural Studies of Sodium Counterion on Naproxen: From Solid State to Stability

Advanced Physics Research, EarlyView.
Naproxen is a widely used nonsteroidal anti‐inflammatory drug with limited aqueous solubility. This study investigates how the sodium counterion influences naproxen's structural, supramolecular, and electronic properties. Hirshfeld surface analysis, QTAIM, and DFT calculations reveal that sodium enhances reactivity, polarity, and solubility ...
Antônio S. N. Aguiar, Pietra Z. Felimberti, Vitor S. Duarte, Leonardo L. Borges, Ademir J. Camargo, Pal Perjesi, Hamilton B. Napolitano   +6 more
wiley   +1 more source

Simple Total Syntheses of (-)-Ergot Alkaloids and Thier (+)-Enantiomers by a Common Synthesis Method Utilizing Optical Resolution

, 1997
Masanori Somei, Kyoko Nakagawa‐Goto
openalex   +1 more source

Bioprospecting of Labdane‐Type Diterpenes From Austroeupatorium laetevirens: Molecular Networking, Structural Elucidation, and Biological Activity Evaluation

Chemistry &Biodiversity, EarlyView.
ABSTRACT Labdane‐type diterpenes are the main specialized metabolites in the Austroeupatorium genus, known for diverse biological activities. This study employed molecular networking to facilitate the identification of labdanes in Austroeupatorium laetevirens, alongside isolation, structural elucidation, and evaluation of anti‐Mycobacterium ...
Francielli A. P. Valeze, Maria Eduarda V. de Souza, Beatriz P. Moreno, Bianca D. B. Sahm, Andressa L. Ieque, Cleverton S. Fernandes, Regiane B. L. Scodro, Leticia V. Costa‐Lotufo, Marta R. B. do Carmo, Andrea N. L. Batista, João M. Batista Junior, Ernani A. Basso, Maria H. Sarragiotto, Debora C. Baldoqui   +13 more
wiley   +1 more source

Sequence‐Dependent Heterotypic Assemblies of Intrinsically Disordered Peptides

ChemistryEurope, EarlyView.
Two oppositely charged intrinsically disordered peptides (IDPs) coassemble into heterotypic nanofibers. Homochiral mixtures (L/L IDPs) form homogeneous, aligned bundles with the more positive IDP. Heterochiral mixtures (L/D IDPs) yield heterogeneous, twisted bundles as positive‐IDP content increases.
Yuchen Qiao, Matthew Chu, Grace Wu, Zhiyu Liu, Bing Xu   +4 more
wiley   +1 more source

Allosteric Chiral Recognition of Eu(III) Complex for Chiral Co(III) Complex Observed by Time‐Resolved Circularly Polarized Luminescence Spectroscopy

ChemistryEurope, EarlyView.
[Eu(pda)2]− (pda = 1,10‐phenanthroline‐2, 9‐dicarboxylic acid) containing Δ/Λ‐[Co(en)3]3+ (en = ethylenediamine) exhibits CPL signals (|glum| ≈0.2 at maximum) at the f–f transition in [Eu(pda)2]−. The time‐resolved CPL reveals that the short‐lived components exhibit CPL.
Juri Yamashita, Munetaka Iwamura, Tsukasa Takanashi, Koichi Nozaki, Taro Tsubomura   +4 more
wiley   +1 more source

Remote Conformational Control of a Chloride‐Binding Site

ChemistryEurope, EarlyView.
Chloride‐binding foldamers have been developed that have stereogenic C‐ and N‐terminal groups separated by a helical α‐aminoisobutyric acid (Aib) body. Chloride affinity is sensitive to the sense and strength of screw‐sense induction by each N‐terminal residue.
Rhodri Ll. Evans, Luis Martínez‐Crespo, Benedicte Doerner, Rosa M. Gomila, George F. S. Whitehead, Antonio Frontera, Simon J. Webb   +6 more
wiley   +1 more source

Stereoselective and Enantiospecific Synthesis of Trisubstituted 1,3a,4,6a‐Tetrahydropentalene via Cuneane Scaffold Editing

ChemistryEurope, EarlyView.
A stereoselective and enantiospecific synthesis of trisubstituted 1,3a,4,6a‐tetrahydropentalenes via Rh(I)‐catalyzed skeletal editing of optically active 2,6‐disubstituted cuneanes are reported. These are derived from achiral 1,4‐disubstituted cubanes through a catalytic asymmetric framework isomerization.
Hiyori Takebe, Seijiro Matsubara
wiley   +1 more source