Security labeling and optical information encryption enabled by laser-printed silicon Mie resonators

Syubaev, Sergey; Gordeev, I.; Modin, Evgeny; Terentyev, V. S.; Storozhenko, Dmitriy; Starikov, Sergey N.; Kuchmizhak, Aleksandr

doi:10.1039/d2nr04179k

Cited by 5 publications

(1 citation statement)

References 65 publications

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“…The rapid growth of the consumer market raises a problem for protecting personal information and goods from counterfeiting, thus forming a new direction in material science and digital technology to encrypt the information. − One of the promising solutions, combining new materials and encryption technologies, is optical information encryption, since it is a quite fast, remote, safe (including for human health), and low-energy-consumptive approach. − In most cases, optically active or photoluminescent inorganic, organic, and hybrid materials − are utilized for optical encryption through a change in their color or photoluminescent (PL) signal. However, the design and fabrication of the optical security marks on arbitrary surfaces with PL decoding, allowing also a human contact, is still in its infancy.…”

Section: Introductionmentioning

confidence: 99%

Inkjet Printing of Biocompatible Luminescent Organic Crystals for Optical Encryption

Gunina,

Gorbunova,

Rzhevskiy

et al. 2023

ACS Appl. Opt. Mater.

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The design and fabrication of optical security marks are of great importance for information encryption and data protection. Herein, biocompatible marks with excellent optical properties, printed easily on arbitrary surfaces, remain a challenge. Here, we report on the design of a series of transparent organic inks based on Gewald's 2aminothiophene derivatives, which are utilized then for inkjet printing of large-scale invisible images with 60 μm resolution on arbitrary substrates. The encryption regime is provided through a combination of organic inks possessing different photoluminescence (PL) spectra ranging from 584 to 625 nm. The decoding of such images is achieved in the PL regime manually and can be read with the naked eye upon ultraviolet radiation. The high biocompatibility of the inks, confirmed by the epithelial-like cell line of mouse cutaneous melanoma and mouse embryonic fibroblasts, paves the way to scalable inkjet printing of biocompatible images for optical encryption and goods protection.

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Section: Introductionmentioning

confidence: 99%

Inkjet Printing of Biocompatible Luminescent Organic Crystals for Optical Encryption

Gunina,

Gorbunova,

Rzhevskiy

et al. 2023

ACS Appl. Opt. Mater.

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The Second Laser Revolution in Chemistry: Emerging Laser Technologies for Precise Fabrication of Multifunctional Nanomaterials and Nanostructures

Manshina,

Tumkin,

Khairullina

et al. 2024

Adv Funct Materials

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The use of photons to directly or indirectly drive chemical reactions has revolutionized the field of nanomaterial synthesis resulting in appearance of new sustainable laser chemistry methods for manufacturing of micro‐ and nanostructures. The incident laser radiation triggers a complex interplay between the chemical and physical processes at the interface between the solid surface and the liquid or gas environment. In such a multi‐parameter system, the precise control over the resulting nanostructures is not possible without deep understanding of both environment‐affected chemical and physical processes. The present review intends to provide detailed systematization of these processes surveying both well‐established and emerging laser technologies for production of advanced nanostructures and nanomaterials. Both gases and liquids are considered as potential reacting environments affecting the fabrication process, while subtractive and additive manufacturing methods are analyzed. Finally, the prospects and emerging applications of such technologies are discussed.

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Fabrication and applications of surface micro/nanostructures by femtosecond laser

Zhu,

Zuo,

et al. 2024

Colloid and Interface Science Communications

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Security labeling and optical information encryption enabled by laser-printed silicon Mie resonators

Abstract: Fighting against falsification of valuable items remains crucial social-threatening challenge stimulating never-ending search for novel anti-counterfeiting strategies. The demanding security labels must simultaneously address multiple requirements (high density of the...

Cited by 5 publications

References 65 publications

Inkjet Printing of Biocompatible Luminescent Organic Crystals for Optical Encryption

Inkjet Printing of Biocompatible Luminescent Organic Crystals for Optical Encryption

The Second Laser Revolution in Chemistry: Emerging Laser Technologies for Precise Fabrication of Multifunctional Nanomaterials and Nanostructures

Fabrication and applications of surface micro/nanostructures by femtosecond laser

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