Spin‐Controlled Helical Quantum Sieve Chiral Spectrometer

Author:

Maity Arnab1,Hershkovitz‐Pollak Yael1,Gupta Ritu2,Wu Weiwei3,Haick Hossam13ORCID

Affiliation:

1. Department of Chemical Engineering and Russell Berrie Nanotechnology Institute Technion – Israel Institute of Technology Haifa 3200003 Israel

2. Department of Chemistry Indian Institute of Technology Jodhpur Jodhpur Rajasthan 342037 India

3. School of Advanced Materials and Nanotechnology Xidian University Xi'an Shaanxi 710126 P. R. China

Abstract

AbstractThis article reports on a molecular‐spin‐sensitive‐antenna (MSSA) that is based on stacked layers of organically functionalized graphene on a fibrous helical cellulose network for carrying out spatiotemporal identification of chiral enantiomers. The MSSA structures combine three complementary features: (i) chiral separation via a helical quantum sieve for chiral trapping, (ii) chiral recognition by a synthetically implanted spin‐sensitive center in a graphitic lattice; and (iii) chiral selectivity by a chirality‐induced‐spin mechanism that polarizes the local electronic band‐structure in graphene through chiral‐activated Rashba spin–orbit interaction field. Combining the MSSA structures with decision‐making principles based on neuromorphic artificial intelligence shows fast, portable, and wearable spectrometry for the detection and classification of pure and a mixture of chiral molecules, such as butanol (S and R), limonene (S and R), and xylene isomers, with 95–98% accuracy. These results can have a broad impact where the MSSA approach is central as a precautionary risk assessment against potential hazards impacting human health and the environment due to chiral molecules; furthermore, it acts as a dynamic monitoring tool of all parts of the chiral molecule life cycles.

Publisher

Wiley

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

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