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Author Spotlight: Metallic Nanocomposites to Eliminate Antibiotic-Resistant Bacteria

Author Spotlight: Metallic Nanocomposites to Eliminate Antibiotic-Resistant Bacteria

Published on: October 4, 2024

Gelatin sponge functionalized with gold/silver clusters for antibacterial application.

Xiaoyu Wang¹, Jinjin Guo¹, Qian Zhang¹

¹State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083.

|November 22, 2019

Summary

This study developed a novel gold/silver nanocluster-gelatin sponge (Au/Ag@gelatin) for wound healing. The enhanced material exhibits superior water absorption and potent antibacterial properties, offering a promising new wound dressing.

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Synthesis of Near-Infrared Emitting Gold Nanoclusters for Biological Applications

Synthesis of Near-Infrared Emitting Gold Nanoclusters for Biological Applications

Published on: March 22, 2020

Area of Science:

Biomaterials Science
Nanotechnology
Infectious Disease Research

Background:

Pathogenic bacterial infections in wounds pose significant health risks.
Developing advanced antibacterial materials for effective wound healing remains a critical need.
Metal nanoclusters are emerging as promising antimicrobial agents.

Purpose of the Study:

To create a novel antibacterial wound dressing using functionalized gelatin.
To investigate the antibacterial efficacy and physical properties of gold/silver nanocluster-conjugated gelatin sponges.

Main Methods:

Biomolecule gelatin was functionalized with gold/silver clusters via amidation.
A porous Au/Ag@gelatin sponge was synthesized.
Characterization of structural modifications, water absorption, and antibacterial activity.

Main Results:

Gold/silver clusters successfully conjugated onto the gelatin substrate, forming Au/Ag@gelatin sponges.
The nanoclusters modified the porous structure, enhancing water absorption and retention.
Au/Ag@gelatin demonstrated aggregation-enhanced emission and significant reactive oxygen species generation, leading to potent antibacterial activity.

Conclusions:

The Au/Ag@gelatin sponge exhibits excellent physical properties and effective bactericidal activity.
This material shows significant potential for application as an advanced wound dressing for combating bacterial infections.