Issue 44, 2021

Design and engineering of a dual-mode absorption/emission molecular switch for all-optical encryption

Abstract

Photochemical reactions that produce a detectable change in the spectroscopic properties of organic chromophores can be exploited to harness the principles of Boolean algebra and design molecule-based logic circuits. Moreover, the logic processing capabilities of these photoactive molecules can be directed to protect, encode, and conceal information at the molecular level. We have designed a photochemical strategy to read, write and encrypt data in the form of optical signals. We have synthesized a supramolecular system based on the known dye resazurin, and investigated a series of photochemical transformations that can be used to regulate its absorption and emission properties upon illumination with ultraviolet or visible light. We have then examined the logic behaviour of the photochemistry involved, and illustrated its potential application in data encryption.

Graphical abstract: Design and engineering of a dual-mode absorption/emission molecular switch for all-optical encryption

Supplementary files

Article information

Article type
Paper
Submitted
20 авг 2021
Accepted
27 окт 2021
First published
27 окт 2021

Phys. Chem. Chem. Phys., 2021,23, 25152-25161

Design and engineering of a dual-mode absorption/emission molecular switch for all-optical encryption

A. D. Erlich, N. P. Dogantzis, L. A. Nubani, L. A. Trifoi, G. K. Hodgson and S. Impellizzeri, Phys. Chem. Chem. Phys., 2021, 23, 25152 DOI: 10.1039/D1CP03823K

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