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High Throughput Microfluidic Rapid and Low Cost Prototyping Packaging Methods

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A Modular Method for Rapidly Prototyping Targeted Gas Vesicle Protein Nanoparticles.

Reid Vassallo¹, Bill Ling², Ernesto Criado-Hidalgo^2,3

¹School of Biomedical Engineering, University of British Columbia, Vancouver, BC V6T 1Z3, Canada.

Bioconjugate Chemistry

|January 19, 2026

Summary

This summary is machine-generated.

Researchers developed a modular method for creating targeted gas vesicles (GVs) by functionalizing them with Ni-NTA to bind His-tagged antibody fragments, enabling specific targeting for biomedical applications.

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Area of Science:

Biotechnology
Nanotechnology
Protein Engineering

Background:

Gas vesicles (GVs) are protein-based nanoparticles with potential in biomedical applications.
Current methods for modifying GVs lack modularity and orientation control.
Targeted delivery of nanoparticles requires precise surface functionalization.

Purpose of the Study:

To develop a modular and orientation-specific method for functionalizing GVs.
To create targeted GVs for potential biomedical applications.
To demonstrate the utility of functionalized GVs for specific molecular targeting.

Main Methods:

Functionalization of GVs with nickel-nitrilotriacetic acid (Ni-NTA) groups.
Binding of His-tagged antibody fragments to functionalized GVs in an orientation-specific manner.
Characterization of particle size, surface charge, and binding affinity of functionalized GVs.

Main Results:

Successfully functionalized GVs demonstrated specific binding to His-tagged proteins.
Particle size and surface charge of functionalized GVs were characterized.
Targeted GVs demonstrated successful binding to prostate-specific membrane antigen (PSMA) in vitro.

Conclusions:

A modular and orientation-specific method for creating targeted GVs was established.
This method allows for precise control over the display of targeting moieties on GVs.
The developed targeted GVs show promise for specific delivery in biomedical applications.