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

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...

Chirality in Nature

Chirality in Nature

Chirality is the most intriguing yet essential facet of nature, governing life’s biochemical processes and precision. It can be observed from a snail shell pattern in a macroscopic world to an amino acid, the minutest building block of life. Most of the snails around the world have right-coiled shells because of the intrinsic chirality in their genes. All the amino acids present in the human body exist in an enantiomerically pure state, except for glycine - the sole achiral amino acid. The...

Prochirality

Prochirality

The concept of prochirality leads to the nomenclature of the individual faces of a molecule and plays a crucial role in the enantioselective reaction. It is a concept where two or more achiral molecules react to produce chiral products. A typical process is the reaction of an achiral ketone to generate a chiral alcohol. Here, the achiral reactant reacts with an achiral reducing agent, sodium borohydride, to generate an equimolar mixture of the chiral enantiomers of the product. For example, an...

Channel Rhodopsins

Channel Rhodopsins

Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...

Molecules with Multiple Chiral Centers

Molecules with Multiple Chiral Centers

Molecules that possess multiple chiral centers can afford a large number of stereoisomers. For instance, while some molecules like 2-butanol have one chiral center, defined as a tetrahedral carbon atom with four different substituents attached, several molecules like butane-2,3-diol have multiple chiral centers. A simple formula to predict the number of stereoisomers possible for a molecule with n chiral centers is 2n. However, there can be a lower number where some of the stereoisomers are...

Properties of Enantiomers and Optical Activity

Properties of Enantiomers and Optical Activity

It is essential to understand the difference between chiral and achiral interactions and the implications thereof in optical activity and their applications. Just as our feet, which are chiral, interact uniquely with chiral objects, such as a pair of shoes, but identically with achiral socks, enantiomers of a molecule exhibit different properties only when they interact with other chiral media. An example of a significant implication from this facet is the phenomenon known as optical activity,...

You might also read

Related Articles

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

Sort by

Same author

Case report of a giant hypervascular mediastinal mass with airway and SVC compromise managed without preoperative biopsy.

Frontiers in oncology·2026

Same author

"Steric-Locking" Polymer Acceptor Enabled 20.53% Efficiency With Suppressed Energetic Disorder and Enhanced Mechanical Robustness in Green-Solvent Processed All-Polymer Solar Cells.

Advanced materials (Deerfield Beach, Fla.)·2026

Same author

Quantitative Active Hydrogen Modulation via Mastering Interfacial Water Over Single Rare Earth Atom on Copper for NO<sub>3</sub> <sup>-</sup>-to-NH<sub>3</sub> Electroreduction.

Angewandte Chemie (International ed. in English)·2026

Same author

A lightweight LBM detection transformer with multi-scale feature fusion for citrus-picking robots.

Frontiers in plant science·2026

Same author

Thermally Driven Supramolecular Chirality Evolution in Low-Bandgap Fused-Ring Conjugated Molecules for High-Performance NIR Circularly Polarized Light Detection.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

Same author

Study on Regulatory Mechanism of <i>Gastrodia elata</i> Specific microRNA Targeting JNK3 in Alzheimer's Disease.

Molecules (Basel, Switzerland)·2026

Search research articles

Related Experiment Video

Updated: Jun 4, 2026

Polarization-Sensitive Two-Photon Microscopy for a Label-Free Amyloid Structural Characterization

Polarization-Sensitive Two-Photon Microscopy for a Label-Free Amyloid Structural Characterization

Published on: September 8, 2023

Chiral Memory-Driven Helical Supramolecular Photodetector for Deciphering Circularly Polarized Light.

Ke Gao¹, Ye In Cho², Wenkai Zhao³

¹State Key Laboratory of Porous Metal Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, P. R. China.

Advanced Materials (Deerfield Beach, Fla.)

|June 3, 2026

Summary

Chiral organic molecules show promise for detecting circularly polarized light (CPL). A new method creates helical structures with high absorption dissymmetry, enabling CPL imaging and bionic vision systems.

Keywords:

chiral memory circularly polarized light helical supramolecule photodetector

More Related Videos

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

Published on: September 25, 2020

CD Spectroscopy to Study DNA-Protein Interactions

CD Spectroscopy to Study DNA-Protein Interactions

Published on: February 10, 2022

Related Experiment Videos

Last Updated: Jun 4, 2026

Polarization-Sensitive Two-Photon Microscopy for a Label-Free Amyloid Structural Characterization

Polarization-Sensitive Two-Photon Microscopy for a Label-Free Amyloid Structural Characterization

Published on: September 8, 2023

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

Published on: September 25, 2020

CD Spectroscopy to Study DNA-Protein Interactions

CD Spectroscopy to Study DNA-Protein Interactions

Published on: February 10, 2022

Area of Science:

Organic electronics
Chiroptical materials
Supramolecular chemistry

Background:

Chiral π-conjugated organic small molecules offer potential for circularly polarized light (CPL) detection due to their chirality and tunable structures.
Low absorption dissymmetry factor (g_abs) in these molecules, caused by imbalanced transition dipole moments, limits their practical application.

Purpose of the Study:

To develop a template-free method for fabricating helical supramolecules with enhanced absorption dissymmetry for CPL detection.
To investigate the chiral memory effect in dinaphthocoronene tetraimide derivatives for improved CPL sensing capabilities.

Main Methods:

Synthesis of two chiral dinaphthocoronene tetraimide enantiomer pairs: (R)-PDI-(R)-NI-Ph/(S)-PDI-(S)-NI-Ph and (S)-PDI-(R)-NI-Ph/(R)-PDI-(S)-NI-Ph.
Fabrication of thin films and annealing at 350°C to induce helical assembly via the chiral memory effect.
Characterization of absorption dissymmetry factor (|g_abs|) and demonstration of CPL imaging using large-area arrays.

Main Results:

Annealed films of (R)-PDI-(R)-NI/(S)-PDI-(S)-NI exhibited significantly higher |g_abs| (0.08) compared to the other enantiomeric set (0.01), attributed to helical supramolecular assembly.
The chiral memory effect was confirmed as the mechanism for forming high-|g_abs| helical structures.
Successful CPL imaging was achieved using large-area arrays of the fabricated films, demonstrating their potential for optoelectronic applications.

Conclusions:

A template-free method utilizing the chiral memory effect enables the fabrication of helical supramolecules with high absorption dissymmetry for CPL detection.
The developed chiral organic materials offer a scalable strategy for high-performance chiral optoelectronics, including CPL imaging and bionic visual systems.