Preparation and characterization of Paliperidone loaded solid lipid nanoparticles

Area of Science:

• Nanotechnology
• Pharmaceutical Sciences
• Drug Delivery

Background:

• Schizophrenia treatment often relies on antipsychotic drugs like Paliperidone (PPN).
• Effective drug delivery systems are crucial for enhancing therapeutic outcomes and patient compliance.
• Solid lipid nanoparticles (SLNs) offer a promising platform for encapsulating lipophilic drugs.

Purpose of the Study:

• To prepare and characterize Paliperidone-loaded solid lipid nanoparticles (SLNs).
• To evaluate the entrapment efficiency and drug loading capacity of the developed SLNs.
• To investigate the physical and chemical stability of Paliperidone within the SLN matrix.

Main Methods:

• Paliperidone (PPN) was loaded into solid lipid nanoparticles (SLNs) using Capmul GMS 50 K as the lipid vehicle.
• Sodium deoxycholate was employed as a surfactant and permeability enhancer for SLN stabilization.
• Particle size, morphology, entrapment efficiency, and drug loading were analyzed using DLS, AFM, TEM, FTIR, XRD, and DSC.

Main Results:

• SLNs with an approximate size of 200 nm were successfully prepared.
• Entrapment efficiency was determined to be 55%, with a drug loading of 4.15%.
• Characterization confirmed no drug-lipid interaction and indicated that Paliperidone was well dispersed and non-crystalline within the lipid matrix.

Conclusions:

• Paliperidone-loaded SLNs were successfully formulated using Capmul GMS 50 K and sodium deoxycholate.
• The developed SLNs demonstrated favorable characteristics for drug delivery, including optimal particle size and good entrapment efficiency.
• Structural analysis confirmed the physical stability and uniform dispersion of Paliperidone within the SLN matrix, suggesting potential for improved antipsychotic therapy.