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Peer-reviewedCC BY 4.0Advanced Science

Multidimensionally Programming Photoswitching via Orthogonal Covalent‐Noncovalent Chemistry for Dual‐Track Time‐Resolved Optical Encryption

  • Qi Guo1
  • Lewei Li1
  • Meihui Yan1
  • Yuzhao Yang1,2
  • Dengchong Feng1
  • Shaolin Lu1,2
  • Cheng Wang1,2
  • Min Cao3
  • Haiqiang Wu4
  • Zhongke Yuan1,2
  • Dingshan Yu5
  • Xudong Chen1,2,5
5 affiliations
  1. 1School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou People's Republic of China
  2. 2Guangdong Laboratory of Chemistry and Chemical Engineering Jieyang Center Jieyang People's Republic of China
  3. 3Kingfa Science & Technology Co., Ltd. Guangzhou People's Republic of China
  4. 4School of Pharmacy Shenzhen University Medical School Shenzhen People's Republic of China
  5. 5Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education School of Chemistry Sun Yat‐sen University Guangzhou People's Republic of China
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Abstract

Encoding targeted information into the temporal evolution of optical states, rather than relying on static on/off states, is essential for storage, optical encryption and anti‐counterfeiting. However, achieving multiple independent information‐display processes remains a challenge. Herein, a “dual‐track” time‐resolved optical encryption strategy is realized based on multidimensional programming of donor–acceptor Stenhouse adduct (DASA) photoswitching through orthogonal covalent‐noncovalent chemistry. The temporal optical evolution during the photo‐bleaching and thermal‐recovery processes can be predictably programmed through the orthogonal combination of noncovalent interactions and covalent incorporation between DASAs and polyurethanes. Distinct from conventional strategies, noncovalent hydrogen‐bonding interactions synchronously suppress the photo‐bleaching rate (kphoto ) and thermal‐recovery rate (kdark ) through isomerization confinement, whereas covalent incorporation reshapes the isomerization energetics, simultaneously accelerating kphoto (2.4‐fold) and retarding kdark (60% decrease). This orthogonal regulation mode is generally applicable across diverse polyurethane chemistries and establishes a four‐quadrant kinetic map for DASA photoswitching, providing multiple encoding units with distinguishable temporal optical evolution. The photo‐bleaching and thermal‐recovery processes function as two independent information‐display tracks, allowing encrypted information to appear in either track, both tracks, or neither track. This work establishes a novel “dual‐track” paradigm for optical encryption by decoupling information in reversible photoswitching processes.

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Cite

BibTeXRIS
BibTeX
@article{guo2026multidimensionally,
  title = {{Multidimensionally Programming Photoswitching via Orthogonal Covalent‐Noncovalent Chemistry for Dual‐Track Time‐Resolved Optical Encryption}},
  author = {Qi Guo and Lewei Li and Meihui Yan and Yuzhao Yang and Dengchong Feng and Shaolin Lu and Cheng Wang and Min Cao and Haiqiang Wu and Zhongke Yuan and Dingshan Yu and Xudong Chen},
  journal = {Advanced Science},
  year = {2026},
  month = oct,
  doi = {10.1002/advs.78337},
  url = {https://doi.org/10.1002/advs.78337},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Multidimensionally Programming Photoswitching via Orthogonal Covalent‐Noncovalent Chemistry for Dual‐Track Time‐Resolved Optical Encryption
AU  - Qi Guo
AU  - Lewei Li
AU  - Meihui Yan
AU  - Yuzhao Yang
AU  - Dengchong Feng
AU  - Shaolin Lu
AU  - Cheng Wang
AU  - Min Cao
AU  - Haiqiang Wu
AU  - Zhongke Yuan
AU  - Dingshan Yu
AU  - Xudong Chen
PY  - 2026
DA  - 2026/10/25
JO  - Advanced Science
DO  - 10.1002/advs.78337
UR  - https://doi.org/10.1002/advs.78337
AB  - Encoding targeted information into the temporal evolution of optical states, rather than relying on static on/off states, is essential for storage, optical encryption and anti‐counterfeiting. However, achieving multiple independent information‐display processes remains a challenge. Herein, a “dual‐track” time‐resolved optical encryption strategy is realized based on multidimensional programming of donor–acceptor Stenhouse adduct (DASA) photoswitching through orthogonal covalent‐noncovalent chemistry. The temporal optical evolution during the photo‐bleaching and thermal‐recovery processes can be predictably programmed through the orthogonal combination of noncovalent interactions and covalent incorporation between DASAs and polyurethanes. Distinct from conventional strategies, noncovalent hydrogen‐bonding interactions synchronously suppress the photo‐bleaching rate (kphoto ) and thermal‐recovery rate (kdark ) through isomerization confinement, whereas covalent incorporation reshapes the isomerization energetics, simultaneously accelerating kphoto (2.4‐fold) and retarding kdark (60% decrease). This orthogonal regulation mode is generally applicable across diverse polyurethane chemistries and establishes a four‐quadrant kinetic map for DASA photoswitching, providing multiple encoding units with distinguishable temporal optical evolution. The photo‐bleaching and thermal‐recovery processes function as two independent information‐display tracks, allowing encrypted information to appear in either track, both tracks, or neither track. This work establishes a novel “dual‐track” paradigm for optical encryption by decoupling information in reversible photoswitching processes.
SN  - 2198-3844
ER  -