Excellent Cationic Lipid for mRNA Delivery and Lipoplex Formulation

July 05, 2026

BlueskyReddit
University of Florida
Neurosurgery
Research Scientist

Overall

Quality of Results

Ease-of-Optimization

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Questions/Comments

Company:

Avanti Polar Lipids

Product Name:

18:1 TAP (DOTAP)

Catalog Number:

890890P-500mg

I used DOTAP to formulate mRNA lipoplexes for in vitro transfection and mRNA delivery studies. The lipid consistently formed stable complexes with mRNA and produced strong protein expression in HEK293 cells while allowing efficient optimization of lipid-to-RNA ratios.

Experimental Design and Results Summary

Application

Formulation of mRNA lipoplexes for in vitro transfection and mRNA delivery studies.

Starting Material

Tips

DOTAP dissolved readily and reproducibly formed mRNA complexes. We optimized several lipid-to-mRNA ratios to balance particle size, encapsulation efficiency, and transfection performance. Freshly prepared formulations consistently produced the best results.

Results Summary

DOTAP efficiently complexed mRNA and generated stable nanoparticles suitable for cellular delivery. Optimized formulations produced robust EGFP expression in HEK293 cells as measured by flow cytometry in the FITC channel. The lipid also demonstrated excellent reproducibility during formulation optimization, making it suitable for evaluating different mRNA doses and lipid compositions

DOI or PMID #

N/A

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Summary

The Good

Easy to formulate and optimize.

The Bad

N/A

The Bottom Line

Avanti DOTAP is an outstanding cationic lipid for mRNA delivery studies. It consistently produced stable lipoplexes with high transfection efficiency and strong EGFP expression in HEK293 cells, making it an excellent choice for formulation development and optimization.

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