Anandamide-loaded nanoparticles: preparation and characterization.

Area of Science:

• Biomaterials Science
• Nanotechnology
• Neuroscience

Background:

• Anandamide (AEA) is an endogenous cannabinoid crucial for neurological functions.
• AEA is prone to adsorption by plastics and instability, hindering research.
• Understanding AEA transport mechanisms requires stable, well-characterized AEA formulations.

Purpose of the Study:

• To prepare and characterize anandamide (AEA) loaded polycaprolactone nanoparticles (PCL NP).
• To utilize PCL NPs as a research tool for investigating AEA transporters.
• To mitigate AEA plastic adsorption and instability issues.

Main Methods:

• Polycaprolactone nanoparticles (PCL NP) were synthesized for AEA loading.
• High-performance liquid chromatography and light scattering were employed.
• Encapsulation efficiency, particle size, drug release, permeability, and stability were assessed.

Main Results:

• High encapsulation efficiency (96.05%) and optimal particle size (83.52 nm) were achieved.
• PCL NPs demonstrated significant AEA stability (half-life 431 h vs. 12 h) and prevented plastic adsorption.
• Drug permeability through artificial membranes was low and influenced by NP presence.

Conclusions:

• This study reports the first successful preparation of stable AEA-loaded PCL NPs.
• The developed PCL NPs offer a reliable tool for AEA research.
• These nanoparticles address critical challenges in handling and studying AEA.