Issue 23, 2023

Raman encoding for security labels: a review

Abstract

Owing to its excellent multiplexing ability, high stability, and molecular fingerprint characteristics, Raman encoding has been widely used in security labels for medical safety, jewelry identification and food supervision. Various growing demands have promoted the anti-counterfeiting mode of security labels based on Raman encoding from the classic one that relies on specific patterns to the more secure one that depends on random patterns. As impressive progress has been made in Raman encoding for security labels in recent years, this review attempts to comprehensively cover security labels based on Raman encoding, from label preparation to image verification. For the labels with different anti-counterfeiting modes, the different basic elements they need are summarized, and the role of Raman encoding in different modes is introduced. In addition, security labels based on Raman encoding still have some drawbacks. Therefore, suggestions on how to improve its anti-counterfeiting performance are also discussed, as well as future challenges and prospects.

Graphical abstract: Raman encoding for security labels: a review

Article information

Article type
Minireview
Submitted
30 avq 2023
Accepted
18 okt 2023
First published
18 okt 2023
This article is Open Access
Creative Commons BY-NC license

Nanoscale Adv., 2023,5, 6365-6381

Raman encoding for security labels: a review

D. Yu, W. Zhu and A. Shen, Nanoscale Adv., 2023, 5, 6365 DOI: 10.1039/D3NA00707C

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