Chemical Research in Chinese Universities ›› 2020, Vol. 36 ›› Issue (2): 268-273.doi: 10.1007/s40242-019-0028-z

• Articles • Previous Articles     Next Articles

Self-assembly of DNA Nanostructures via Bioinspired Metal Ion Coordination

WANG Congli1,2, DI Zhenghan1,2, FAN Zetan1, LI Lele1,2   

  1. 1. CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P. R. China;
    2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
  • Received:2019-10-29 Revised:2019-12-06 Online:2020-04-01 Published:2019-12-16
  • Contact: LI Lele E-mail:lilele@nanoctr.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(Nos.21822401, 21771044) and the Young Thousand Talented Program of China.

Abstract: Despite a growing interest in DNA nanomaterials, their simple synthesis remains a challenge. A simple and general strategy for constructing DNA-based nanomaterials by metal ion coordination is reported. The metal-DNA nanoparticles(NPs) could be synthesized with DNA molecules of diverse sequence and various metal ions of intrinsic property, resulting in multifunctional NPs with the combined advantages of both inorganic and DNA building blocks. It is demonstrated that the hybrid metal-DNA NPs could be engineered for magnetic resonance and luminescence imaging, encapsulation of multifarious nucleic acids with controlled ratio, and co-assembly with small drug molecules. Furthermore, because these metal-DNA NPs exhibited enhanced cellular uptake compared to free synthetic DNA, they hold potential for applications in diagnostics and therapeutics.

Key words: DNA nanotechnology, Metal ion coordination, Self-assembly