Mucociliary Clearance Inspired Nanozyme-centric Hydrogel Composites for Integrated Bacterial Detection

Area of Science:

• Biomaterials Engineering
• Nanotechnology
• Pathogen Detection

Background:

• Population mobility increases pathogen transmission, straining healthcare.
• Current bacterial detection methods require specialized equipment and complex sample processing.
• Existing methods face challenges with nanozyme particle aggregation and detection sensitivity.

Purpose of the Study:

• To develop an efficient platform for bacterial disinfection, lysis, and detection.
• To overcome limitations of current nanozyme-based detection systems.
• To create a versatile, home-based pathogen testing solution.

Main Methods:

• Fabrication of a nanozyme-centric hydrogel network integrated into nanowire arrays.
• Utilizing nanozymes as initiators and crosslinkers for one-step hydrogel formation.
• Integrating hydrogel with nanowire arrays for bacterial lysis and colorimetric detection.

Main Results:

• Achieved comprehensive bacterial lysis and sensitive colorimetric detection.
• Demonstrated a one-step gelation process that mitigates nanozyme aggregation.
• Developed an efficient platform for diverse bacterial strain detection.

Conclusions:

• The nanozyme-hydrogel-nanowire platform provides efficient bacterial disinfection, lysis, and detection.
• The platform is adaptable to flexible substrates and compatible with machine learning.
• This technology holds promise for accessible, home-based pathogen testing, particularly in resource-limited environments.