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Updated: Mar 24, 2026

Anti-virulent Disruption of Pathogenic Biofilms using Engineered Quorum-quenching Lactonases

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Published on: January 1, 2016

Chemically Reprogramming Liquid Metals With Polyphenols for a Self-Reinforcing Assault on Biofilms.

Yiyan Yang¹, Linjun Zhang¹, Jianhua Zhang¹

¹College of Polymer Science and Engineering, State Key Laboratory of Advanced Polymer Materials, Sichuan University, Chengdu, China.

Small (Weinheim an Der Bergstrasse, Germany)

|March 17, 2026

Summary

This summary is machine-generated.

This study developed magnetic liquid metal nanocomposites that destroy bacterial biofilms and prevent regrowth. This innovative "destroy-and-pacify" approach significantly enhances biofilm eradication efficiency.

Keywords:

active targeting antibacterial antibiofilm liquid metal natural polyphenols

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Area of Science:

Biomaterials Science
Nanotechnology
Microbiology

Background:

Bacterial biofilms pose significant challenges due to rapid regeneration after physical removal.
Integrating physical destruction with biological suppression is crucial for effective biofilm control.

Purpose of the Study:

To develop intelligent antibiofilm nanocomposites by chemically reprogramming magnetic liquid metals (LMs).
To create a synergistic platform for biofilm eradication using magnetic actuation and biological inhibition.

Main Methods:

Coating LMs with baicalin (BA) via metal-phenolic coordination to form MBA nanocomposites.
Utilizing magnetic actuation for mechanical biofilm disruption and BA for biological suppression (quorum sensing and EPS inhibition).
Evaluating efficacy on mature Pseudomonas aeruginosa biofilms on implants in a murine model.

Main Results:

The MBA nanocomposite demonstrated a synergistic "destroy-and-pacify" effect, enhancing biofilm penetration and ablation.
Achieved over double the clearance efficiency of mature P. aeruginosa biofilms compared to monotherapies.
Established a self-reinforcing loop where physical and biological actions potentiate each other.

Conclusions:

The developed MBA nanocomposite offers a novel and highly effective strategy for bacterial biofilm eradication.
This work presents a new paradigm for designing smart theranostic microrobots for complex biological barriers.
The programmable platform shows promise for tackling persistent biofilm infections.