PolyAdenine cryogels for fast and effective RNA purification

Area of Science:

• Biomaterials Science
• Molecular Biology
• Polymer Chemistry

Background:

• Cryogels are versatile materials with diverse applications.
• RNA purification is critical for molecular biology but challenging due to RNA's instability.
• Existing RNA purification methods can be costly and time-consuming.

Purpose of the Study:

• To develop adenine-incorporated polymeric cryogels for cost-effective and rapid RNA purification.
• To create a high-capacity sorbent for isolating RNA.

Main Methods:

• Synthesized adenine methacrylate (AdeM) monomer.
• Prepared 2-hydroxyethyl methacrylate (HEMA)-based cryogels via copolymerization with AdeM.
• Characterized cryogels using FTIR, SEM, TGA, and swelling tests.
• Evaluated RNA adsorption capacity under various conditions (pH, concentration, temperature, time).

Main Results:

• Achieved a high RNA adsorption capacity of 11.86 mg/g.
• Cryogels exhibited a significant swelling ratio of approximately 510%.
• The cryogels demonstrated reusability for at least five cycles without substantial loss in capacity.

Conclusions:

• Adenine-incorporated HEMA-based cryogels are effective sorbents for RNA purification.
• These cryogels offer a promising, cost-friendly, and efficient alternative for RNA isolation.
• The developed material addresses the challenge of RNA denaturation and enables repeated use.