The invention belongs to the field of nano
medicine, and particularly relates to a 20-nanometer
DNA tetrahedron and a preparation method and application thereof.The 20-nanometer
DNA tetrahedron is a double-strand
DNA tetrahedron, the length of each arm is 8 DNA helixes, the 20-nanometer DNA tetrahedron has
addressability, the 20-nanometer DNA tetrahedron is formed by self-assembling DNA single chains through multiple annealing procedures on the basis of the base
pairing principle, and the 20-nanometer DNA tetrahedron is a double-strand DNA tetrahedron; the invention further discloses application of the 20-nanometer DNA tetrahedron in preparation of a
skin repairing
medicine. The problems that
a DNA tetrahedron is poor in
structural rigidity, weak in stability and low in activity are solved, a new technical scheme and a new
treatment strategy are provided for the field of
skin repair, and a new angle and a breakthrough are provided for development of human medical undertaking.