Results 51 to 60 of about 75,325 (204)

Emergence of a Luttinger liquid phase in an array of chiral molecules

Physical Review Research
We propose a robust platform for simulating chiral quantum magnetism using linear arrays of trapped asymmetric-top molecules, specifically 1,2-propanediol (C_{3}H_{8}O_{2}).
Muhammad Arsalan Ali Akbar, Bretislav Friedrich, Sabre Kais   +2 more
doaj   +1 more source

Synthesis of charged cyclodextrin highly soluble in organic solvents for enantiomer separations in capillary electrophoresis [PDF]

, 2006
Synthesis of charged cyclodextrin highly soluble in organic solvents was made by exchanging the inorganic counter ion (Na+) of heptakis (2,3-di-Omethyl- 6-O-sulfo)-????-CD (Na7HDMS) with tetrabutylammonium (TBA+), to produce TBA7HDMS.
Maldonado, Omar
core   +2 more sources

Evolutionary, Functional and Mechanistic Characterisation of Microbial Terpene Synthase‐Like Genes From Springtails

Angewandte Chemie International Edition, EarlyView.
A genome analysis revealed the presence of many bacterial‐type terpene synthases in springtails. Four enzymes from Sinella curviseta were functionally characterised, resulting in the isolation of several compounds including sinellene ether, the first diterpene ether identified from a terpene synthase that represents a novel skeleton.
Min Wang, Clement Schneider, Zarley Rebholz, Stefan Schulz, Kathy Darragh, Jeroen S. Dickschat   +5 more
wiley   +1 more source

Electrodialysis system for large-scale enantiomer separation

, 2001
In contrast to analytical methods, the range of technologies currently applied for large-scale enantiomer separations is not very extensive. Therefore, a new system has been developed for large-scale enantiomer separations that can be regarded as the ...
Keurentjes, J.T.F., Padt, A., van der, Ent, E.M., van der, Thielen, T.P.H., Cohen Stuart, M.A.   +4 more
core   +2 more sources

Enantiomer fractions instead of enantiomer ratios [PDF]

, 2000
The use of enantiomer ratios (ERs) to indicate the relative amounts of a pair of enantiomers in a sample has some disadvantages. Enantiomer fractions (EFs) are proposed as all alternative expression to eliminate the difficulties.
Boer, J., de, Brinkman, U.A.Th., de Geus, H.J., Wester, P.G., de Boer, J., Geus, H.J. de, Boer, J. de, Brinkman, U.A.T., Geus, H.J., de   +8 more
core   +1 more source

Revisiting Securidaca longipedunculata Seed Oil: Applying NMR and Mass Spectroscopy to Confirm the Presence of 2‐Acetyl‐1,3‐Diacyl–sn‐Glycerols and Conjugated Hydroxydienoic Fatty Acids

Journal of the American Oil Chemists' Society, EarlyView.
The manuscript confirms and expands on previous reports concerning the presence of unusual conjugated hydroxydienoic fatty acids and acetyl‐TAG in the seed oil of Securidaca longipedunculata. The location of acetate only at sn‐2 of TAG was conclusively shown by high resolution NMR and hydroxy seed fatty acids are characterized.
Mark A. Smith, Jianfeng Zhu, Jin‐Yue Sun   +2 more
wiley   +1 more source

Bridging the translational gap in clinical nanomedicine: From rational design to clinical reality

BMEMat, EarlyView.
Nanotechnology offers a multi‐faceted approach to modern healthcare, encompassing high‐sensitivity diagnostic imaging, innovative vaccine delivery, and targeted therapeutics. This review explores how these nanomedicine applications address critical challenges in cancer recurrence and the treatment of neurologic and respiratory diseases to combat rising
Ahmed H. Ghonaim, Marwa Ahmed El‐Naka, Wedad M. Nageeb, Atta Ullah Khan, Noura M. Seleem, Aliaa Abdelghafar, Doaa Zamel, Yang Liu, Qigai He, Wentao Li   +9 more
wiley   +1 more source

Individual Wake Vortex Separations: Capacity and Delay Impact on Single and Dual Dependent Runway Systems [PDF]

, 2012
Airport capacity constraints and growing traffic demand in air transportation cause congestion and delay on the ground and in the air. Conservative wake turbulence separation minima in the approach phase guarantee a minimum of in-flight wake encounters ...
Lorenz, Sandro, Lau, Alexander, Holzäpfel, Frank   +2 more
core  

Stereoretentive Nucleophilic Aromatic Substitution Accesses Atropisomeric 4‐Amino‐N‐Arylquinolinium Salts

Chemistry – A European Journal, EarlyView.
Quinolin‐4‐ones were converted to chloroquinolinium salts, allowing formation of axially chiral aminoquinolinium salts via an enantioretentive SNAr reaction with a variety of amine nucleophiles. The salts have a high rotational barrier, with a racemization half‐life of ∼1000s of years.
Darren Holmes, Nia Foster, Saima Ansari, Paul Kavanagh, Paul Dingwall, Peter C. Knipe   +5 more
wiley   +1 more source

Monolithic enantiomer-selective stationary phases for capillary electrochromatography

, 2006
Monolithic materials have become a well-established format for stationary phases in the field of capillary electrochromatography. Four types of monoliths, namely particle-fixed, silica-based, polymer-based, and molecularly imprinted monoliths, have been ...
Xie, Chuanhui, Yu, Zhiyuan, Zou, Hanfa, 邹汉法, Kong, Liang, Qin, Feng, Ye, Mingliang   +6 more
core   +1 more source