Internship: Synthesis of novel ionisable lipids for designing liponanoparticles for mRNA delivery

University of Brest
3 to 6 months between January and July 2027
35 hours a week
English B2 / French B2

The recent SARS-CoV-2 pandemic has accelerated significant scientific advances in mRNA technology, including mRNA-based vaccines and other mRNA-based therapies (gene editing, prime editing), which have now become commonplace. Furthermore, mRNA has emerged as an innovative therapeutic platform for personalised medicine. However, the efficient delivery of mRNA therapeutics requires further development of delivery systems that can protect and transport mRNA to specific target cells. Lipid nanoparticles (LNPs) are currently the most advanced strategy in this area, but optimising them to improve encapsulation, biocompatibility and intracellular release remains a major challenge. LNP constructions typically comprise four components: an ionizable lipid, a phospholipid, cholesterol and a PEG lipid. Of these, the ionizable lipid, which is the most extensively studied, is the key focus for developing new formulations. Until now, ionizable lipids have mainly been produced using commercially available, this significantly limits structural diversity. We hypothesised that integrating novel functionalities into ionizable lipids by developing original structures could enhance their efficacy and selectivity with respect to specific organs. This internship is part of a research project that aims to design and develop new families of ionizable lipids that could broaden mRNA formulations and enhance their efficacy, biodistribution and tolerability.

  • Location: University of Brest, France. Faculté des Sciences et Techniques, Laboratory CEMCA, UMR CNRS 6521, Team Chimie Organique Santé Matériaux (COSM), groupe Phosphore et Lipides.
  • General activities of the hosting research unit: Synthesis of amphiphiles and lipids for nucleic acids delivery
  • Compensation: University of Brest : Around 600€ per month (varies based on the number of days worked per month) + Erasmus+ grant available depending on eligibility criteria of your university
  • Student’s disciplines: Organic chemistry or biochemistry
  • Keywords : organic chemistry, amphiphiles, nucleic acids delivery, mRNA, lipid nanoparticles
Tasks and duties entrusted to the student:

The intern will be expected to:

  • Carry out the organic synthesis of novel ionizable lipid molecules
  • Characterize the compounds using classical analytical techniques (NMR, mass spectrometry, chromatography)
  • Participate in the preliminary evaluation of their formulation as delivery systems
  • Present the project's results and progress during team meetings
Skills to be acquired or developed:
  • Organic synthese (purification, characterization NMR, mass spectrometry)
  • Lipid formulation (liposomes, lipoplexes, LNPs)
  • Physicochemical characterization of LNP (Dynamic Light Scateering)
  • Participation in group meeting
  • Presentation and discussion of results
Dr Mathieu BERCHEL (MCF-HDR) phone : +33 0298016286 mathieu.berchel@univ-brest.fr