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Ionic Liquids as Antifouling Polymeric Nanoparticle Coatings

Prof. Eden Tanner, speaker
Prof. Eden Tanner
Assistant Professor of Chemistry & Biochemistry
University of Mississippi
Chemistry Building, Room 553
Analytical Seminar

One of the major challenges facing intravenous nanoparticle administration is the formation of protein coronae on the surface of injected nanoparticles, which prevents them from reaching the target tissue. Biocompatible ionic liquids (ILs) have been shown to have tunable interactions with biomolecules including proteins and are prone to rearrangement on charged surfaces. We show that this can be exploited to use designer protein avoidant-ionic liquids as polymeric coatings, which can protect the nanoparticle from being fouled by serum proteins in the blood. When the IL coated poly(lactic-co-glycolic acid) (PLGA) particles are injected into mice, they show reduced clearance compared to control poly(ethylene glycol) or bare PLGA particles. Instead of lung, kidney or splenic deposition, the IL-particles accumulate in the lung tissue after hitching a ride on red blood cells post-injection. This talk will discuss the development of ionic liquids for efficacious nanoparticle drug delivery, elucidate the lessons learnt thus far, describe the many challenges to come, and highlight the opportunities that arise at the intersection of physical chemistry and bioengineering.

Dr. Eden Tanner completed her undergraduate degree with Honors in Advanced Science as a Chemistry major at the University of New South Wales, Sydney, Australia. She earned her doctorate in Physical and Theoretical Chemistry at the University of Oxford and completed her Postdoctoral Research Fellowship at Harvard University working with Samir Mitragotri. As of August 2020, Dr. Tanner is an Assistant Professor in the Department of Chemistry and Biochemistry at the University of Mississippi. The Tanner Lab works at the interface of Chemistry and Bioengineering to solve outstanding biomedical challenges, with a particular focus on the use of ionic liquids in nanoparticle drug delivery.

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