Encapsulation of Active Substances in Natural Polymer Coatings

Area of Science:

• Materials Science
• Chemical Engineering
• Biotechnology

Background:

• Encapsulation protects active ingredients from degradation and controls their release in various industries.
• Biopolymers are ideal wall materials due to biocompatibility, biodegradability, and non-toxicity, forming 'smart' hydrogel barriers.
• Controlled release is crucial for optimizing therapeutic efficacy and product stability.

Purpose of the Study:

• To provide a comprehensive overview of encapsulation technologies and mechanisms.
• To explore natural polymers as wall materials for encapsulation.
• To identify cost-effective and suitable encapsulation methods for different drugs.

Main Methods:

• Review of encapsulation techniques, including micro- and nano-gels.
• Analysis of controlled release mechanisms (diffusion and barrier degradation).
• Survey of natural polymers used as wall materials.

Main Results:

• Biopolymers form hydrogels that act as responsive barriers for controlled release.
• Various natural polymers show promise as encapsulation materials.
• Different polymers offer distinct advantages for specific drug delivery applications.

Conclusions:

• Encapsulation using biopolymers offers a versatile approach for controlled active ingredient delivery.
• Natural polymers present a sustainable and effective alternative for drug encapsulation.
• Further research can optimize polymer selection for specific pharmaceutical, cosmetic, and agrochemical applications.