Results 1 to 10 of about 28,983 (170)

Chiral Bromonium Salt (Hypervalent Bromine(III)) with N-Nitrosamine as a Halogen-Bonding Bifunctional Catalyst

open access: yesMolecules, 2023
There has been a great focus on halogen-bonding as a unique interaction between electron-deficient halogen atoms with Lewis basic moieties. Although the application of halogen-bonded atoms in organic chemistry has been eagerly researched in these decades,
Yasushi Yoshida   +3 more
doaj   +1 more source

Formal [3 + 2] Cycloaddition of α-Imino Esters with Azo Compounds: Facile Construction of Pentasubstituted 1,2,4-Triazoline Skeletons

open access: yesMolecules, 2023
1,2,4-Triazole and 1,2,4-triazoline are important components of bioactive molecules and catalysts employed in organic synthesis. Therefore, the efficient synthesis of these components has received significant research attention. However, studies on their
Yasushi Yoshida   +3 more
doaj   +1 more source

Antioxidative Reactivity of L-Ascorbic Acid and D-Isoascorbic Acid Species towards Reduction of Hexachloroiridate (IV)

open access: yesJournal of Chemistry, 2021
The pair [IrCl6]2–/[IrCl6]3– has been demonstrated to be a good redox probe in biological systems while L-ascorbic acid (AA) is one of the most important antioxidants.
Han Zhang   +8 more
doaj   +1 more source

Development of a novel light-up probe for detection of G-quadruplexes in stress granules

open access: yesScientific Reports, 2022
G-quadruplexes (G4s) regulate various biological processes in cells. However, cellular imaging of dynamically forming G4s in biomolecular condensates using small molecules has been poorly investigated. Herein, we present a fluorescent light-up probe with
Keisuke Iida   +4 more
doaj   +1 more source

Bacterial Filamentation Drives Colony Chirality

open access: yesmBio, 2021
Chirality is ubiquitous in nature, with consequences at the cellular and tissue scales. As Escherichia coli colonies expand radially, an orthogonal component of growth creates a pinwheel-like pattern that can be revealed by fluorescent markers.
Andrés Aranda-Díaz   +8 more
doaj   +1 more source

Advances in Chirality Sensing with Macrocyclic Molecules

open access: yesChemosensors, 2021
The construction of chemical sensors that can distinguish molecular chirality has attracted increasing attention in recent years due to the significance of chiral organic molecules and the importance of detecting their absolute configuration and ...
Xiaotong Liang   +5 more
doaj   +1 more source

On the Enantioselective HPLC Separation Ability of Sub-2 µm Columns: Chiralpak® IG-U and ID-U

open access: yesMolecules, 2019
Silica with a particle size of 3–5 µm has been widely used as selector backbone material in 10–25 cm HPLC chiral columns. Yet, with the availability of 1.6 µm particles, shorter, high-efficiency columns practical for minute chiral ...
Diana Ibrahim, Ashraf Ghanem
doaj   +1 more source

Quantum circuits to measure scalar spin chirality

open access: yesPhysical Review Research, 2023
The scalar spin chirality is a three-body physical observable that plays an outstanding role both in classical magnetism, characterizing non-co-planar spin textures, and in quantum magnetism, as an order parameter for chiral spin liquids.
L. I. Reascos   +3 more
doaj   +1 more source

Breaking of Odd Chirality in Magnetoelectrodeposition

open access: yesMagnetochemistry, 2022
Electrodeposition under magnetic fields (magnetoelectrodeposition; MED) can induce surface chirality on copper films. The chiral signs of MED films should depend on the magnetic field polarity; namely, the reversal of the magnetic field causes the ...
Iwao Mogi   +3 more
doaj   +1 more source

Kinetic Analysis of the Reduction Processes of a Cisplatin Pt(IV) Prodrug by Mesna, Thioglycolic Acid, and Thiolactic Acid

open access: yesJournal of Chemistry, 2020
Although Mesna is an FDA-approved chemotherapeutic adjuvant and an antioxidant based largely on its antioxidative properties, kinetic and mechanistic studies of its redox reactions are limited.
Yanqing Xia   +9 more
doaj   +1 more source

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