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Formulating and Characterizing Lipid Nanoparticles for Gene Delivery using a Microfluidic Mixing Platform

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Critical In Vitro Characterization Methods of Lipid-Based Formulations for Oral Delivery: a Comprehensive Review.

Nitin Kumar Swarnakar^1,2, Natarajan Venkatesan^1,2, Guru Betageri³

¹College of Pharmacy, Western University of Health Sciences, Pomona, California, 91766, USA.

AAPS Pharmscitech

|December 21, 2018

Summary

This summary is machine-generated.

Lipid-based formulations improve drug solubility and bioavailability. This review details in vitro methods for characterizing these formulations, crucial for successful drug delivery systems.

Keywords:

dissolution in vitro lipids lipolysis solubility

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Area of Science:

Pharmaceutical Sciences
Drug Delivery
Formulation Science

Background:

Lipid-based formulations are vital for enhancing the dissolution and bioavailability of poorly soluble drugs.
In vivo digestion alters lipid composition, leading to complex colloidal phases in the intestine.
Thorough in vitro characterization is essential for predicting in vivo performance.

Purpose of the Study:

To provide a comprehensive review of in vitro characterization techniques for lipid-based drug formulations.
To highlight the importance of these techniques in developing successful drug delivery systems.

Main Methods:

Review of established in vitro techniques for lipid-based formulations.
Discussion of methods including solubility studies, drug entrapment efficiency, thermal analysis, dissolution testing, and in vitro digestion models.

Main Results:

Detailed overview of various in vitro characterization methods.
Emphasis on the role of bile salts, phospholipids, and cholesterol in formulation digestion.
Identification of key parameters for evaluating formulation performance.

Conclusions:

In vitro characterization is critical for understanding the behavior of lipid-based formulations.
A multi-faceted approach using various techniques is necessary for successful formulation development.
This review serves as a guide for researchers and formulators in this field.