Carbon Dots: A Bright Future as Anticounterfeiting Encoding Agents

IF 13 2区 材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Small Pub Date : 2024-02-23 DOI:10.1002/smll.202311526
Raul Simões, Joana Rodrigues, Victor Neto, Teresa Monteiro, Gil Gonçalves
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引用次数: 0

Abstract

Counterfeit products and data vulnerability present significant challenges in contemporary society. Hence, various methods and technologies are explored for anticounterfeiting encoding, with luminescent tracers, particularly luminescent carbon dots (CDs), emerging as a notable solution. CDs offer promising contributions to product security, environmental sustainability, and the circular economy. This critical review aims to highlight the luminescence responsiveness of CDs to physical and chemical stimuli, achieved through nanoengineering their chemical structure. The discussion will delve into the various tunable luminescence mechanisms and decay times of CDs, investigating preferential excitations such as up-conversion, delayed fluorescence, fluorescence, room temperature phosphorescence, persistent luminescence, energy and charge transfer, as well as photo-chemical interactions. These insights are crucial for advancing anticounterfeiting solutions. Following this exploration, a systematic review will focus on the research of luminescent CDs' smart encoding applications, encompassing anticounterfeiting, product tracing, quality certification, and information encryption. Finally, the review will address key challenges in implementing CDs-based technology, providing specific insights into strategies aimed at maximizing their stability and efficacy in anticounterfeiting encoding applications.

Abstract Image

碳点:作为防伪编码剂的光明前景。
假冒产品和数据漏洞是当代社会面临的重大挑战。因此,人们探索了各种防伪编码的方法和技术,其中发光示踪剂,尤其是发光碳点(CD),成为一种引人注目的解决方案。发光碳点有望为产品安全、环境可持续性和循环经济做出贡献。本评论旨在强调通过对碳点化学结构进行纳米工程设计,碳点对物理和化学刺激的发光响应性。讨论将深入探讨 CD 的各种可调发光机制和衰减时间,研究优先激发,如上转换、延迟荧光、荧光、室温磷光、持续发光、能量和电荷转移以及光化学相互作用。这些见解对于推进防伪解决方案至关重要。在这一探索之后,系统综述将重点关注发光光盘的智能编码应用研究,包括防伪、产品追踪、质量认证和信息加密。最后,该综述将讨论实施基于光盘的技术所面临的主要挑战,并就旨在最大限度地提高其在防伪编码应用中的稳定性和功效的战略提供具体见解。
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来源期刊
Small
Small 工程技术-材料科学:综合
CiteScore
17.70
自引率
3.80%
发文量
1830
审稿时长
2.1 months
期刊介绍: Small serves as an exceptional platform for both experimental and theoretical studies in fundamental and applied interdisciplinary research at the nano- and microscale. The journal offers a compelling mix of peer-reviewed Research Articles, Reviews, Perspectives, and Comments. With a remarkable 2022 Journal Impact Factor of 13.3 (Journal Citation Reports from Clarivate Analytics, 2023), Small remains among the top multidisciplinary journals, covering a wide range of topics at the interface of materials science, chemistry, physics, engineering, medicine, and biology. Small's readership includes biochemists, biologists, biomedical scientists, chemists, engineers, information technologists, materials scientists, physicists, and theoreticians alike.
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