Results 21 to 30 of about 406,967 (342)

Electromagnetic chirality: from fundamentals to nontraditional chiroptical phenomena

open access: yesLight: Science & Applications, 2020
Chirality arises universally across many different fields. Recent advancements in artificial nanomaterials have demonstrated chiroptical responses that far exceed those found in natural materials.
J. Mun   +7 more
semanticscholar   +1 more source

Chirality in the Solid State: Chiral Crystal Structures in Chiral and Achiral Space Groups

open access: yesMaterials, 2022
Chirality depends on particular symmetries. For crystal structures it describes the absence of mirror planes and inversion centers, and in addition to translations, only rotations are allowed as symmetry elements.
G. Fecher, J. Kübler, C. Felser
semanticscholar   +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

Supramolecular Chirality Transfer toward Chiral Aggregation: Asymmetric Hierarchical Self‐Assembly

open access: yesAdvancement of science, 2021
Self‐assembly, as a typical bottom‐up strategy for the fabrication of functional materials, has been applied to fabricate chiral materials with subtle chiral nanostructures.
Shuai Huang, Haifeng Yu, Quan Li
semanticscholar   +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

Electric field control of chirality [PDF]

open access: yesScience Advances, 2021
Nonlinear optics reveal how the chirality of ferroelectric vortices can be deterministically controlled using an electric field.
Piush Behera   +21 more
semanticscholar   +1 more source

Direct observation of long-range chirality transfer in a self-assembled supramolecular monolayer at interface in situ

open access: yesNature Communications, 2022
Unravelling the mechanism of chirality transfer in supramolecular assemblies is important to understand the relationship between molecular chirality and supramolecular chirality.
Yuening Zhang   +5 more
doaj   +1 more source

On the Microscopic Origin of Cholesteric Pitch [PDF]

open access: yes, 1997
We present a microscopic analysis of the instability of the nematic phase to chirality when molecular chirality is introduced perturbatively. We show that previously neglected short-range biaxial correlations play a crucial role in determining the ...
A. B. Harris   +15 more
core   +4 more sources

Unscrambling Structured Chirality with Structured Light at the Nanoscale Using Photoinduced Force [PDF]

open access: yes, 2018
We show that the gradient force generated by the near field of a chiral nanoparticle carries information about its chirality. On the basis of this physical phenomenon we propose a new microscopy technique that enables the prediction of spatial features ...
Albooyeh, M   +6 more
core   +5 more sources

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

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