Surface imprinted bacterial cellulose nanofibers for hemoglobin purification

Area of Science:

• Biomaterials Science
• Protein Chemistry
• Nanotechnology

Background:

• Protein purification is critical in biotechnology and medicine.
• Developing selective and reusable adsorbents remains a challenge.
• Bacterial cellulose nanofibers (BCNFs) offer a unique scaffold for material fabrication.

Purpose of the Study:

• To develop novel hemoglobin imprinted films (MIPs) on BCNS for selective protein purification.
• To investigate the adsorption properties and reusability of the fabricated MIP-BCNFs.
• To assess the potential of MIP-BCNFs for hemoglobin purification from hemolysate.

Main Methods:

• Surface imprinting using N-methacryloyl-(L)-histidinemethylester (MAH) and copper ions.
• Fabrication of hemoglobin imprinted films onto bacterial cellulose nanofibers.
• Characterization using FT-IR, SEM, μCT, AFM, and surface area analysis.
• Batch adsorption experiments for hemoglobin onto MIP-BCNFs and non-imprinted NIP-BCNFs.

Main Results:

• Successful fabrication of hemoglobin imprinted films on BCNS (MIP-BCNFs).
• MIP-BCNFs exhibited high adsorption capacity for hemoglobin.
• Demonstrated significant selectivity and reusability of the MIP-BCNFs.
• Effective purification of hemoglobin from hemolysate was achieved.

Conclusions:

• MIP-BCNFs are effective and selective adsorbents for hemoglobin purification.
• The developed material shows potential for industrial applications in protein purification.
• The study highlights the utility of metal ion coordination in surface imprinting for biomolecule recognition.