Related Experiment Video
Updated: Oct 22, 2025

Delivery of Therapeutic siRNA to the CNS Using Cationic and Anionic Liposomes
Published on: July 23, 2016
Solid Lipid Nanoparticles (SLNs): An Advanced Drug Delivery System Targeting Brain through BBB
Mantosh Kumar Satapathy1, Ting-Lin Yen1,2, Jing-Shiun Jan1
1Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, No. 250, Wu Hsing St., Taipei 110, Taiwan.
Solid lipid nanoparticles (SLNs) offer a novel, nontoxic approach for drug delivery across the blood-brain barrier (BBB). These nanocarriers enhance therapeutic efficacy for central nervous system (CNS) disorders by improving drug targeting and reducing toxicity.
Area of Science:
- Neuroscience
- Nanotechnology
- Pharmacology
Background:
- The blood-brain barrier (BBB) restricts therapeutic agent entry into the brain, complicating treatment for neurological disorders.
- Current neurotherapeutics face limitations including drug toxicity and poor on-target specificity.
- Nanodrug delivery systems aim to overcome BBB limitations for treating central nervous system (CNS) conditions.
Purpose of the Study:
- To explore solid lipid nanoparticles (SLNs) as a drug delivery system for crossing the BBB.
- To evaluate SLNs for their potential in treating major neurological disorders.
- To highlight SLNs as a novel, nontoxic formulation strategy for CNS therapeutics.
Main Methods:
- Review of nanodrug delivery systems, focusing on solid lipid nanoparticles (SLNs).
- Analysis of SLN properties for crossing the blood-brain barrier (BBB).
- Discussion of SLN applications in treating CNS disorders like Alzheimer's, Parkinson's, and brain tumors.
Main Results:
- Solid lipid nanoparticles (SLNs) demonstrate potential as effective carriers for drug delivery across the BBB.
- Drug-loaded SLNs offer controlled release, prolonged circulation, and enhanced target specificity.
- SLNs present a biomimetic approach to reduce toxicity and improve therapeutic efficacy for neurological conditions.
Conclusions:
- Solid lipid nanoparticles (SLNs) represent a promising nanocarrier for delivering therapeutics across the BBB.
- SLNs offer a safer and more effective strategy for treating a range of neurological disorders.
- This formulation strategy holds potential for future clinical applications in neurotherapeutics.
Related Concept Videos
The Blood-brain Barrier
Bioavailability Enhancement: Drug Permeability Enhancement
Physiological Barriers
The blood endothelial barrier is the most porous of these. It allows all small ionized, un-ionized, and lipophilic molecules to pass through the endothelial lining into the interstitial space...
Drug Delivery: Parenteral Route
There are three primary parenteral routes: intravenous (IV), intramuscular (IM), and subcutaneous (SC). The IV route introduces the drug directly into the bloodstream, ensuring immediate action. The IM route...
Factors Affecting Drug Distribution: Physiological Barriers
The capillary endothelial barrier allows only smaller molecules below 600 Da (Daltons) to pass through. It also restricts drugs like heparin that are bound to blood components, limiting their movement within the bloodstream.
The...

