| 摘要 |
The present invention provides a lipid nano-particles, which allow nucleic acids to be easily introduced into cells, comprising a cationic lipid represented by formula (I)
(wherein: R 1 and R 2 are, the same or different, alkenyl, etc, and
X 3 is absent or is alkyl, etc,
X 1 and X 2 are hydrogen atoms, or are combined together to form a single bond or alkylene, and
Y 1 is absent or anion,
L 1 is a single bond, etc,
R 3 is alkyl, etc), and the like. |
