Two-photon polymerized structural color microblocks with pH response for information encryption

Yuzhao Zhang; Haibo Yu; Jianchen Zheng; Jingang Wang; Lianqing Liu; Wen Jung Li

doi:10.1109/NANO58406.2023.10231214

Two-photon polymerized structural color microblocks with pH response for information encryption

Yuzhao Zhang
, Haibo Yu
, Jianchen Zheng
, Jingang Wang
, Lianqing Liu
, Wen Jung Li

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

Abstract

"Structural coloring" is a stable and environmentally friendly way to present color and has a wide range of applications in areas such as information encryption, optical anti-counterfeiting measures, and sensors. In this study, we create color changeable microblocks with pH response by two-photon polymerization. We printed three-dimensional microblocks similar to woodpiles using layer-by-layer line processing and created microblocks containing different colors by varying the processing parameters. These microblocks are pH-responsive and can shrink and swell rapidly in response to changes in the acidity or alkalinity of the solution to which they are exposed. These changes allow the microblocks to undergo reversible color changes. Furthermore, the pH-responsive function enables the encryption of patterned information that is visible under acidic conditions but rapidly becomes invisible under alkaline conditions. The excellent responsiveness and reversibility of this micro-structured surface has potential applications in anti-counterfeit information hiding, environmental sensing, and tunable optical devices.

© 2023 IEEE

Original language	English
Title of host publication	2023 IEEE 23rd International Conference on Nanotechnology (NANO)
Publisher	IEEE
ISBN (Electronic)	979-8-3503-3346-6
DOIs	https://doi.org/10.1109/NANO58406.2023.10231214
Publication status	Published - 2023

Funding

The authors wish to acknowledge the National Natural Science Foundation of China (Grant Nos. 61927085 and 61973298) and Hong Kong Research Grants Council (GRF Project Number 11216120).

RGC Funding Information

RGC-funded

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10.1109/NANO58406.2023.10231214

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@inproceedings{12efe593235049c69dd5af08dbaab57e,

title = "Two-photon polymerized structural color microblocks with pH response for information encryption",

abstract = "{"}Structural coloring{"} is a stable and environmentally friendly way to present color and has a wide range of applications in areas such as information encryption, optical anti-counterfeiting measures, and sensors. In this study, we create color changeable microblocks with pH response by two-photon polymerization. We printed three-dimensional microblocks similar to woodpiles using layer-by-layer line processing and created microblocks containing different colors by varying the processing parameters. These microblocks are pH-responsive and can shrink and swell rapidly in response to changes in the acidity or alkalinity of the solution to which they are exposed. These changes allow the microblocks to undergo reversible color changes. Furthermore, the pH-responsive function enables the encryption of patterned information that is visible under acidic conditions but rapidly becomes invisible under alkaline conditions. The excellent responsiveness and reversibility of this micro-structured surface has potential applications in anti-counterfeit information hiding, environmental sensing, and tunable optical devices. {\textcopyright} 2023 IEEE",

author = "Yuzhao Zhang and Haibo Yu and Jianchen Zheng and Jingang Wang and Lianqing Liu and Li, \{Wen Jung\}",

year = "2023",

doi = "10.1109/NANO58406.2023.10231214",

language = "English",

booktitle = "2023 IEEE 23rd International Conference on Nanotechnology (NANO)",

publisher = "IEEE",

address = "United States",

}

Two-photon polymerized structural color microblocks with pH response for information encryption. / Zhang, Yuzhao; Yu, Haibo; Zheng, Jianchen et al.
2023 IEEE 23rd International Conference on Nanotechnology (NANO). IEEE, 2023.

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Two-photon polymerized structural color microblocks with pH response for information encryption

AU - Zhang, Yuzhao

AU - Yu, Haibo

AU - Zheng, Jianchen

AU - Wang, Jingang

AU - Liu, Lianqing

AU - Li, Wen Jung

PY - 2023

Y1 - 2023

N2 - "Structural coloring" is a stable and environmentally friendly way to present color and has a wide range of applications in areas such as information encryption, optical anti-counterfeiting measures, and sensors. In this study, we create color changeable microblocks with pH response by two-photon polymerization. We printed three-dimensional microblocks similar to woodpiles using layer-by-layer line processing and created microblocks containing different colors by varying the processing parameters. These microblocks are pH-responsive and can shrink and swell rapidly in response to changes in the acidity or alkalinity of the solution to which they are exposed. These changes allow the microblocks to undergo reversible color changes. Furthermore, the pH-responsive function enables the encryption of patterned information that is visible under acidic conditions but rapidly becomes invisible under alkaline conditions. The excellent responsiveness and reversibility of this micro-structured surface has potential applications in anti-counterfeit information hiding, environmental sensing, and tunable optical devices. © 2023 IEEE

AB - "Structural coloring" is a stable and environmentally friendly way to present color and has a wide range of applications in areas such as information encryption, optical anti-counterfeiting measures, and sensors. In this study, we create color changeable microblocks with pH response by two-photon polymerization. We printed three-dimensional microblocks similar to woodpiles using layer-by-layer line processing and created microblocks containing different colors by varying the processing parameters. These microblocks are pH-responsive and can shrink and swell rapidly in response to changes in the acidity or alkalinity of the solution to which they are exposed. These changes allow the microblocks to undergo reversible color changes. Furthermore, the pH-responsive function enables the encryption of patterned information that is visible under acidic conditions but rapidly becomes invisible under alkaline conditions. The excellent responsiveness and reversibility of this micro-structured surface has potential applications in anti-counterfeit information hiding, environmental sensing, and tunable optical devices. © 2023 IEEE

UR - https://www.webofscience.com/wos/woscc/full-record/WOS:001061580700048

U2 - 10.1109/NANO58406.2023.10231214

DO - 10.1109/NANO58406.2023.10231214

M3 - RGC 32 - Refereed conference paper (with host publication)

BT - 2023 IEEE 23rd International Conference on Nanotechnology (NANO)

PB - IEEE

ER -

Two-photon polymerized structural color microblocks with pH response for information encryption

Abstract

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GRF: A Microfluidic Pervaporation Device for Fabrication of Nanoparticle-Based Metalens for Dry Environment Super-Resolution Imaging

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Two-photon polymerized structural color microblocks with pH response for information encryption

Abstract

Funding

RGC Funding Information

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Projects

GRF: A Microfluidic Pervaporation Device for Fabrication of Nanoparticle-Based Metalens for Dry Environment Super-Resolution Imaging

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