Related Experiment Video
Updated: May 10, 2026
09:43
Interfacial Molecular-level Structures of Polymers and Biomacromolecules Revealed via Sum Frequency Generation Vibrational Spectroscopy
Published on: August 13, 2019
Design of a dynamic polymer interface for chiral discrimination.
Atsuomi Shundo1, Koichiro Hori, Takuya Ikeda
1Department of Applied Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan. a-shundo@cstf.kyushu-u.ac.jp
Journal of the American Chemical Society
|July 2, 2013
Summary
Chiral polymer films show enantioselective wetting, meaning they interact differently with chiral liquids. This discovery opens doors for advanced chiral sensing and separation technologies.
Area of Science:
- Materials Science
- Supramolecular Chemistry
- Polymer Science
Background:
- Chiral recognition is crucial in chemistry and biology.
- Developing materials for enantioselective interactions is an ongoing challenge.
- Surface properties of materials play a key role in molecular interactions.
Purpose of the Study:
- To demonstrate enantioselective wetting on a chiral polymer film.
- To investigate the influence of chirality on liquid-solid interactions.
- To explore the potential of dynamic interfaces for chiral discrimination.
Main Methods:
- Fabrication of a chiral polymer film.
- Measurement of contact angles for various chiral liquids.
- Analysis of surface reorganization and polymer chain conformational changes at the interface.
Main Results:
- Contact angle of chiral liquids on the film was dependent on their chirality.
- Identical physical properties (e.g., surface tension) did not lead to similar wetting behavior.
- Enantioselective surface reorganization, including local polymer chain conformational changes, was observed.
Conclusions:
- Chiral polymer films can exhibit enantioselective wetting.
- The phenomenon is driven by dynamic interfacial reorganization.
- This work presents a novel approach for chiral sensing, optical resolution, and asymmetric synthesis materials.
Related Concept Videos
02:05Prochirality
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...
02:30Chirality 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...
01:26Polymer Classification: Stereospecificity
Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
02:25Chirality
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...
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...
01:11High-Performance Liquid Chromatography: Introduction
High-performance liquid chromatography(HPLC), formerly referred to as High-pressure liquid chromatography, is a powerful technique used to separate, identify, and quantify components in complex mixtures. The term "high pressure" refers to using high pressure to push the liquid mobile phase through the tightly packed columns.
In HPLC, two phases play a critical role in the separation process:
In HPLC, two phases play a critical role in the separation process: