1,2-dioleoyl-3-trimethylammonium-propane (DOTAP) methyl sulfate

Features:

• Non-cytotoxic at working concentrations
• High efficiency and reproducibility
• Cost effective and easy to use

DOTAP MS (N-[1-(2,3-Dioleoyloxy)propyl]-N,N,N-trimethylammonium methyl-sulfate) is a proven reagent for the highly efficient liposomal transfection of DNA, RNA, oligonucleotides, and some other negatively charged large biomolecules. Several other techniques of introducing genetic material into cells may suffer from inadequate reproducibility, cytotoxicity, inconvenience of process, and low transfection efficiency. DOTAP avoids these drawbacks and works by encapsulating the negatively charged DNA within a spontaneously formed liposomal vesicle. This DOTAP/DNA complex can then fuse with the cell membrane and insert DNA directly into the cytoplasm. This mechanism of action ensures transfection occurs efficiently and with little to no cytotoxicity.

Contact us at [email protected] to know about our cGMP grade DOTAP Methyl Sulfate manufactured under 21 CFR part 210,211.

转染技术新宠-Polysciences阳离子聚合物基因转染技术 其优点：适用宿主广泛，操作简便，细胞毒性小，转染率高。其中聚乙烯亚胺（PEI）的转染性能最好。聚乙烯亚胺是一种具有较高的阳离子电荷密度的有机大分子，每相隔两个碳原子，就是第三个原子都是质子化的氨基氮原子，使得聚合物网络在任何PH下都能充当有效的“质子海绵”体。这种聚阳离子能将各种报告基因转入各种种属细胞，其效果好于脂质聚酰胺，而且细胞毒性低。大量实验证明，PEI是非常有希望的基因治疗载体。目前在设计更复杂的基因载体时，PEI经常做为核心组成成分。