期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 59, 期 31, 页码 12991-12997出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202003823
关键词
cryptography; DNA origami; molecular information coding; steganography
资金
- National Natural Science Foundation of China [81822024, 11761141006]
- Natural Science Foundation of Shanghai, China [19520714100, 19ZR1475800]
- National Key Research and Development Program of China [2017YFC1200904]
- Project of Shanghai Jiao Tong University [2019QYA03, YG2017ZD07]
DNA nanostructures with programmable nanoscale patterns has been achieved in the past decades, and molecular information coding (MIC) on those designed nanostructures has gained increasing attention for information security. However, achieving steganography and cryptography synchronously on DNA nanostructures remains a challenge. Herein, we demonstrated MIC in a reconfigurable DNA origami domino array (DODA), which can reconfigure intrinsic patterns but keep the DODA outline the same for steganography. When a set of keys (DNA strands) are added, the cryptographic data can be translated into visible patterns within DODA. More complex cryptography with the ASCII code within a programmable 6x6 lattice is demonstrated to demosntrate the versatility of MIC in the DODA. Furthermore, an anti-counterfeiting approach based on conformational transformation-mediated toehold strand displacement reaction is designed to protect MIC from decoding and falsification.
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