Related Experiment Video
Updated: Jul 29, 2025

Coulomb Explosion Imaging as a Tool to Distinguish Between Stereoisomers
Published on: August 18, 2017
Highly Reliable Chiral Discrimination of Tryptophan Enantiomers through Two Different Modes: Electrochemistry and
Pengjing Jing1, Tai Wen1, Junyao Li1
1Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, China.
Abstract:
Reliable chiral discrimination of enantiomers with simple devices is of great importance for chiral analysis. Here, a chiral sensing platform is developed for chiral discrimination through two different modes: electrochemistry and temperature. Au nanoparticles (AuNPs) are grown in situ on the nanosheets of MXene by utilizing the strong metal reduction ability of MXene, which can be further used for the anchoring of N-acetyl-l-cysteine (NALC), a commonly used chiral source, through Au-S bonds. Owing to the excellent electrical conductivity and photothermal conversion efficiency of MXene, the resultant MXene-AuNPs-NALC is applied in the construction of a chiral sensing platform for the discrimination of tryptophan (Trp) enantiomers through two different modes: electrochemistry and temperature. Compared with conventional single-mode chiral sensors, the proposed chiral sensing platform can integrate two different indicators (currents and temperature) into one chiral sensor, greatly improving the reliability of chiral discrimination.
Related Concept Videos
Properties of Enantiomers and Optical Activity
Chirality in Nature
Racemic Mixtures and the Resolution of Enantiomers
¹H NMR Chemical Shift Equivalence: Enantiotopic and Diastereotopic Protons
In chiral compounds such as 2-butanol, replacing the methylene hydrogens at C3 produces a pair of...
Prochirality
Chirality at Nitrogen, Phosphorus, and Sulfur
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...

