DNA Core@Inorganic Shell

J Am Chem Soc. 2010 Dec 1;132(47):16735-6. doi: 10.1021/ja105809e. Epub 2010 Sep 16.

Abstract

A chemically well-defined Bio Core@Inorganic Shell nanohybrid, which consists of rationally designed DNA molecule core with a size of ∼100 nm and spherical inorganic nanoshell with an overall thickness of ∼10 nm reassembled with exfoliated layered metal hydroxide (MH nanosheets), is prepared. The DNA encapsulation and its release, due to the pH-dependent solubility of the MH nanoshell, plays a crucial role in maximizing the stability of base sequence-manipulated and probe-functionalized DNA molecules with designed information. The present DNA Core@MH Shell nanohybrid can provide wide bioinspired applications converged with nanotechnology, such as an advanced gene delivery system and a biomedical diagnostics, tracing/collection/sensing system for DNA-based information.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • DNA / chemistry*
  • Hydroxides / chemistry*
  • Metals / chemistry
  • Microscopy
  • Models, Molecular
  • Nanoshells / chemistry*
  • Nucleic Acid Conformation
  • X-Ray Diffraction

Substances

  • Hydroxides
  • Metals
  • DNA