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Related Experiment Video

Updated: Jun 22, 2026

Embedded Bioprinting of Tissue-like Structures Using κ-Carrageenan Sub-Microgel Medium

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Published on: May 3, 2024

Carrageenan as an anionic polymer for aqueous microencapsulation.

R T Patil¹, T J Speaker

¹Temple University, Philadelphia, PA 19140, USA.

|July 3, 2009

Summary

Carrageenan, an anionic polymer, effectively encapsulates proteins like trypsin within spermine carrageenan macrocapsules. This method preserves the protein's structure and enzymatic activity, showing promise for biopolymer encapsulation.

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Published on: October 10, 2016

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Last Updated: Jun 22, 2026

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Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions

Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions

Published on: October 10, 2016

Area of Science:

Biomaterials Science
Polymer Chemistry
Protein Chemistry

Background:

Aqueous microencapsulation using alginate and spermine has shown success for live viruses and proteins.
Investigating alternative anionic polymers is crucial for expanding encapsulation techniques.

Purpose of the Study:

To evaluate carrageenan as an anionic polymer for protein encapsulation in an all-aqueous system.
To assess the structural and functional integrity of a model protein after encapsulation.

Main Methods:

Encapsulation of the model protein, trypsin, within spermine carrageenan macrocapsules.
Analysis of protein structure using SDS-PAGE.
Measurement of specific enzymatic activity to determine functional integrity.

Main Results:

Trypsin encapsulation in spermine carrageenan macrocapsules was achieved.
SDS-PAGE confirmed that trypsin retained its structural integrity post-encapsulation.
Enzymatic activity assays demonstrated that trypsin maintained its functional integrity.

Conclusions:

Carrageenan can successfully function as an anionic polymer in all-aqueous charged film encapsulation systems.
Spermine carrageenan macrocapsules provide a viable method for preserving protein structure and function.