期刊
SOFT MATTER
卷 7, 期 22, 页码 10931-10934出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1sm06303k
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资金
- PRESTO-JST
- Ministry of Education, Culture, Sports, Science, and Technology, Japan [20241029]
- Grants-in-Aid for Scientific Research [20241029, 23350079] Funding Source: KAKEN
Developing methods for stabilizing DNA nanostructures is a major challenge for next-generation nanofabrication, because stable DNA nanostructures are expected to work as building materials in the bottom-up assembly of functional biomolecules and nano-electronic components. Here we show the availability of cross-linking-type photoreaction with 3-cyanovinylcarbazole nucleosides ((CNV)Ks) on DNA nanostructures. DNA double-crossover AB-staggered (DXAB) tiles including cross-linking molecules, CNVKs, self-assembled into two-dimensional (2D) periodic DNA arrays and were covalently connected by photo-cross-linking. The self-assembled DNA arrays before and after photo-cross-linking have been visualized by high-resolution, tapping mode atomic force microscopy (AFM) in buffer. The improvement of the heat tolerance of photo-cross-linked DNA arrays was confirmed by heating and visualizing the DNA nanostructures. The heat-resistant DNA arrays may expand the potential of DNA as a functional material in biotechnology and nanotechnology.
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