# How nanoparticles could help medication reach the brain | Eden Tanner | TEDxUniversityofMississippi

Source: https://www.youtube.com/watch?v=WMIIUQEjiSc
Recap page: https://rapidrecap.app/video/WMIIUQEjiSc
Generated: 2025-11-11T21:40:13.186+00:00

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## Quick Overview

Eden Tanner details the development of a technology utilizing ionic liquids coated onto biodegradable nanoparticles to safely deliver therapeutic agents across the blood-brain barrier, demonstrating that 45% of these particles reached the brain in rats after 30 minutes, contrasting sharply with the saline control and indicating a promising, unprecedented level of drug delivery efficacy for treating conditions like glioblastoma, Alzheimer's, and Parkinson's.

**Key Points:**
- Nanoparticles coated with ionic liquids successfully delivered therapeutics across the blood-brain barrier (BBB) in rats, demonstrating 45% particle delivery to the brain within 30 minutes post-injection.
- The experiment compared three conditions: Saline (control, showing no signal), PLGA-DiD (showing minimal signal), and IL-PLGA-DiD (showing strong signal in the brain tissue), confirming the ionic liquid coating's efficacy.
- The natural transport mechanism of red blood cells, which make up 45% of blood volume, is too slow to deliver therapeutics effectively, necessitating advanced delivery systems.
- The ionic liquid coating allows the nanoparticles to hitch a ride on red blood cells, protecting the cargo from degradation before reaching the brain.
- This technology aims to treat challenging neurological conditions such as glioblastoma, Alzheimer's, and Parkinson's disease, where drug delivery to the brain is currently restricted by the BBB.
- The speaker's lab creates ionic liquids from common ingredients like table salt (sodium chloride) and fatty acids, which are liquid at room temperature.

![Screenshot at 01:04: A slide displays a comparison of red blood cell integrity: the left image \(Saline\) shows a normal, smooth red blood cell, while the right image \(PLGA-DiD\) shows a damaged red blood cell covered in small dots, illustrating the negative impact of non-coated particles or the positive effect of the coating on cell integrity.](https://ss.rapidrecap.app/screens/WMIIUQEjiSc/00-01-04.png)

**Context:** Eden Tanner, speaking at TEDxUniversity of Mississippi, discusses a novel drug delivery system designed to overcome the blood-brain barrier (BBB), a protective shield that prevents many therapeutic agents from reaching the central nervous system. Her research focuses on using nanoparticles coated with ionic liquids to actively transport drugs or biological molecules, like enzymes or gene therapies, directly into brain tissue, offering new hope for treating devastating neurological disorders.

## Detailed Analysis

Eden Tanner explains the challenge of treating brain diseases like glioblastoma, Alzheimer's, and Parkinson's due to the blood-brain barrier (BBB), which prevents most drugs from entering the brain. She notes that even red blood cells, which carry oxygen throughout the body, cannot effectively deliver medicine because they naturally lack access past this barrier. To circumvent this, her lab develops nanoparticles coated with ionic liquids—substances liquid at room temperature, often made from common ingredients like salt and fatty acids. When these coated nanoparticles are introduced into the bloodstream via the carotid artery, they can successfully hitch a ride on red blood cells, protecting their cargo (drugs or biological molecules) from degradation. Experimental results in rats showed that 45% of these ionic liquid-coated nanoparticles successfully reached the brain tissue within 30 minutes, a level of delivery described as unprecedented. The visual evidence comparing saline injection (no signal) to the IL-PLGA-DiD treatment (strong signal in the brain slice) clearly demonstrates this enhanced delivery capability, suggesting a transformative future for treating previously untreatable neurological conditions.

### The Blood-Brain Barrier Challenge

- Medicinal agents face difficulties entering the body, requiring painful injections or patches; the BBB acts as a tight ring of cells preventing entry, showing that normal red blood cells cannot deliver medicine effectively.

### Ionic Liquid Nanoparticles

- Tanner's lab creates ionic liquids from materials like salt and fatty acids, then coats nanoparticles with them to create a 'taxi' for drugs, protecting cargo until it reaches the brain.

### Experimental Evidence

- Comparing saline control (no signal) with IL-PLGA-DiD treatment in rat brain slices, 45% of the coated nanoparticles reached the brain tissue within 30 minutes, demonstrating unprecedented delivery efficiency.

### Future Potential

- This technology could allow for the targeted delivery of drugs, proteins, and gene therapies to treat glioblastoma, Alzheimer's, Parkinson's, and other conditions previously resistant to treatment.

![Screenshot at 00:05: Sponsor logos displayed during the introduction of the TEDx event.](https://ss.rapidrecap.app/screens/WMIIUQEjiSc/00-00-05.png)
![Screenshot at 00:10: Speaker Eden Tanner standing alone on the stage before beginning her presentation.](https://ss.rapidrecap.app/screens/WMIIUQEjiSc/00-00-10.png)
![Screenshot at 01:04: A scientific graphic illustrating a cross-section of a blood vessel with a red blood cell being enveloped by surrounding cells, representing the blood-brain barrier.](https://ss.rapidrecap.app/screens/WMIIUQEjiSc/00-01-04.png)
![Screenshot at 01:39: The speaker discusses glioblastoma, an aggressive brain cancer, highlighting the problem the technology addresses.](https://ss.rapidrecap.app/screens/WMIIUQEjiSc/00-01-39.png)
![Screenshot at 03:59: An animation showing red blood cells flowing through a blood vessel, emphasizing their role in oxygen distribution.](https://ss.rapidrecap.app/screens/WMIIUQEjiSc/00-03-59.png)
![Screenshot at 05:13: A slide displaying images of an ionic liquid in a vial, molecular models, and salt, illustrating the components used in the nanoparticles.](https://ss.rapidrecap.app/screens/WMIIUQEjiSc/00-05-13.png)
![Screenshot at 07:38: A comparison slide \(A: Saline, B: PLGA-DiD, C: IL-PLGA-DiD\) showing fluorescence in the brain slice only for condition C, proving the ionic liquid coating enables BBB penetration.](https://ss.rapidrecap.app/screens/WMIIUQEjiSc/00-07-38.png)
![Screenshot at 11:50: Closing slide displaying all sponsors and partner organizations for the TEDx event.](https://ss.rapidrecap.app/screens/WMIIUQEjiSc/00-11-50.png)