Description
General Description
DOTAP (1,2-dioleoyl-3-trimethylammonium-propane) is a synthetic cationic lipid commonly used in liposome formulation, gene delivery, and lipid nanoparticle (LNP) systems. Due to its permanently positively charged quaternary ammonium head group, DOTAP efficiently complexes negatively charged nucleic acids such as DNA, mRNA, and siRNA.
Key Properties
- Cationic lipid with quaternary ammonium head group
- Efficient nucleic acid complexation capability
- Forms liposomes and lipid nanoparticles
- Suitable for transfection and gene delivery applications
- Biocompatible lipid formulation material
Applications
- Gene and nucleic acid delivery
- Liposome and lipid nanoparticle formulation
- DNA, mRNA, and siRNA transfection
- Drug delivery research
- Nanomedicine and biomaterial engineering
- Cell culture and molecular biology applications
Functional Overview
DOTAP provides positive surface charge for electrostatic interaction with nucleic acids, enabling efficient encapsulation, cellular uptake, and intracellular delivery in liposomal and nanoparticle systems.
Summary
DOTAP is a versatile cationic lipid widely used in liposome engineering, gene delivery, transfection, and advanced lipid nanoparticle research applications.








