An affinity chromatography method used to purify His-tag-displaying bio-nanocapsules

Area of Science:

• Biotechnology
• Nanotechnology
• Virology

Background:

• Hepatitis B virus (HBV)-derived bio-nanocapsules show promise as drug delivery carriers.
• Existing purification methods for bio-nanocapsules can be complex and inefficient.

Purpose of the Study:

• To establish a simple and versatile purification method for bio-nanocapsules.
• To utilize affinity chromatography with a histidine tag (His-tag) for enhanced purification.

Main Methods:

• Engineered HBV bio-nanocapsules by inserting a histidine tag (His-tag).
• Applied affinity chromatography for one-step purification of His-tag engineered bio-nanocapsules.

Main Results:

• Achieved a simple, one-step purification process.
• Demonstrated a 2.5-fold higher yield compared to conventional ultracentrifugation.
• His-tag affinity chromatography proved effective for bio-nanocapsule purification.

Conclusions:

• The His-tag affinity chromatography method is a desirable alternative for purifying recombinant virus-like particles.
• This method offers improved efficiency and yield for bio-nanocapsule purification.
• The developed technique simplifies the purification process for potential therapeutic applications.