Coacervation for biomedical applications: innovations involving nucleic acids

Area of Science:

• Biomedical Engineering
• Materials Science
• Drug Delivery

Background:

• Therapeutic formulations (gene therapies, vaccines) face challenges in stability, biocompatibility, and targeting.
• Coacervation, a liquid-liquid phase separation, offers a tunable technique to overcome these limitations.

Purpose of the Study:

• To review the mechanisms of coacervation and its application in enhancing therapeutic formulations.
• To explore current strategies for using coacervation with nucleic acid-based therapeutics.
• To identify challenges and future directions for coacervation in biomedical applications.

Main Methods:

• Review of coacervation principles, including influencing factors like pH, ionic strength, and temperature.
• Analysis of various coacervation strategies: peptide-, protein-, polymer-based, nanocarriers, and hybrid systems.
• Focus on the encapsulation and delivery of nucleic acid-based therapeutics.

Main Results:

• Coacervation significantly improves the stability, biocompatibility, and targeting of therapeutic agents.
• Various coacervation approaches demonstrate potential for effective nucleic acid delivery.
• Factors like charge patterning and chirality critically influence coacervate formation and efficacy.

Conclusions:

• Coacervation is a promising technique for advancing therapeutic formulations, particularly for nucleic acid-based treatments.
• Further research and industrial scaling are essential to fully realize the potential of coacervation.
• This approach opens new avenues for innovative treatments, especially for rapid disease response.