Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Asymmetric Lipid Bilayer

Asymmetric Lipid Bilayer

Biological membranes show uneven distribution of different types of lipids in the inner and outer layers, resulting in transverse asymmetric membranes. The treatment of the erythrocyte membrane with the enzyme phospholipase confirmed the asymmetric nature of the lipid bilayer. The enzyme hydrolyzes lipids into fatty acids and hydrophilic groups. The phospholipase acts only on the outer layer of the membrane, while the inner layer remains intact. The phospholipase treatment resulted in 80%...

Phase Contrast and Differential Interference Contrast Microscopy

Phase Contrast and Differential Interference Contrast Microscopy

Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...

Chirality

Chirality

Chirality is a term that describes the lack of mirror symmetry in an object. In other words, chiral objects cannot be superposed on their mirror images. For example, our feet are chiral, as the mirror image of the left foot, the right foot, cannot be superposed on the left foot.
Chiral objects exhibit a sense of handedness when they interact with another chiral object. For example, our left foot can only fit in the left shoe and not in the right shoe. Achiral objects — objects that have...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Interfacial Potential Compensation for HOMO Alignment in Ternary Organic Solar Cells.

Small (Weinheim an der Bergstrasse, Germany)·2026

Same author

Trainable soft electronics with memory in liquid crystal polymers.

Science advances·2026

Same author

Highly Selective Construction of D<sub>2</sub>-Symmetric Chiral Carbon Nanorings and the Diverse Assembly With Fullerenes.

Small (Weinheim an der Bergstrasse, Germany)·2026

Same author

Temperature- and Light-Regulated Liquid Crystal Smart Window for Dynamic Control of Daylight and Solar Heat in All-Weather Conditions.

Angewandte Chemie (International ed. in English)·2026

Same author

Coplanar indoline-functionalized fullerene with elevated LUMO level for tin halide perovskite photovoltaics.

Chemical communications (Cambridge, England)·2026

Same author

Efficient and Stable Wide-Bandgap Perovskite Solar Cells Fabricated via Vacuum Flash.

Small (Weinheim an der Bergstrasse, Germany)·2026

Search research articles

Related Experiment Video

Updated: Aug 17, 2025

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation

Published on: February 27, 2019

Facile Stratification-Enabled Emergent Hyper-Reflectivity in Cholesteric Liquid Crystals.

Qunmei Wei¹, Pengrong Lv², Yang Zhang^1,3

¹SCNU-TUE Joint Lab of Device Integrated Responsive Materials (DIRM), National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou Higher Education Mega Center, No. 378, West Waihuan Road, 510006 Guangzhou, China.

ACS Applied Materials & Interfaces

|December 15, 2022

Summary

This summary is machine-generated.

This study introduces photopolymerization-enforced stratification (PES) to engineer cholesteric liquid crystals (CLCs). This method creates hyper-reflective CLC materials capable of reflecting both left- and right-handed circularly polarized light (CPL).

Keywords:

chiral dopant bundle cholesteric liquid crystals hyper-reflectivity phase separation photopolymerization-enforced stratification

More Related Videos

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

Published on: May 15, 2017

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals

Published on: May 29, 2018

Related Experiment Videos

Last Updated: Aug 17, 2025

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation

Published on: February 27, 2019

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

Published on: May 15, 2017

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals

Published on: May 29, 2018

Area of Science:

Materials Science
Optics
Polymer Chemistry

Background:

Cholesteric liquid crystals (CLCs) are chiral photonic materials exhibiting selective reflection based on wavelength and polarization.
Helix engineering is crucial for tailoring CLC properties for applications like beam steering and adaptive reflection.

Purpose of the Study:

To demonstrate a novel photopolymerization-enforced stratification (PES) strategy for helix engineering in chiral CLC systems.
To achieve hyper-reflectivity in CLCs by creating a bilayer structure reflecting both left- and right-handed circularly polarized light (CPL).

Main Methods:

Utilizing a PES-based strategy to induce spontaneous phase separation of chiral dopants with opposite handedness.
Developing a CLC bilayer structure through controlled photopolymerization.

Main Results:

Successfully engineered CLC systems exhibiting hyper-reflectivity by reflecting both left- and right-handed CPL.
Demonstrated the PES mechanism's ability to make initially hidden chiral information explicit.
Achieved facile programming of hyper-reflection center wavelength, patterning, and stimuli-responsiveness.

Conclusions:

The PES strategy offers a versatile method for helix engineering in CLCs and other liquid crystal/polymer materials.
Engineered hyper-reflective CLCs hold significant potential for advanced optical devices, including digital displays, lasers, and smart windows.