Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 117, Issue 37, Pages 22736-22742Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.2011660117
Keywords
bioinspired; colloidal crystal; structural color; MXene; wettability
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Funding
- National Natural Science Foundation of China [61927805, 51522302]
- National Natural Science Foundation of China (NSAF) Foundation of China [U1530260]
- Natural Science Foundation of Jiangsu Province [BE2018707]
- Scientific Research Foundation of Southeast University
- Scientific Research Foundation of the Graduate School of Southeast University
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Information coding strategies are becoming increasingly crucial due to the storage demand brought by the information explosion. In particular, bioinformation coding has attracted great attention for its advantages of excellent storage capacity and long lifetime. Herein, we present an innovative bioinspired MXene-integrated photonic crystal (PhC) array for multichannel bioinformation coding. PhC arrays with similar structure to Stenocara beetle's back are utilized as the substrate, exhibiting properties of high throughput and stability. MXene nanosheets are further integrated on the PhC array's substrate with the assistance of the adhesion capacity of mussel-inspired dopamine (DA). Benefitting from their fluorescence resonance energy transfer effect, MXene nanosheets can quench the fluorescence signals of quantum dot (QD) modified DNA probes unless the corresponding targets exist. Additionally, these black MXene nanosheets can enhance the contrast of structural color. In this case, the encrypted information can be easily read out by simply observing the fluorescence signal of DNA probes. It is demonstrated that this strategy based on bioinspired MXene-integrated PhC arrays can realize high-throughput information encoding and encryption, which opens a chapter of bioinformation coding.
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