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Antibiotic resistance in bacteria arises when microorganisms evolve the ability to withstand drugs designed to kill them or inhibit their growth, rendering once-effective treatments useless. This phenomenon, driven by genetic change and selection under antibiotic exposure, poses a profound threat to modern medicine. Mechanisms include drug-inactivating enzymes (e.g., β-lactamases), efflux pumps that eject antibiotics, mutations altering antibiotic targets, decreased drug uptake, and acquisition...

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Updated: Jul 16, 2026

Preparation of Zinc Oxide Nanoparticles and the Evaluation of their Antibacterial Effects

Preparation of Zinc Oxide Nanoparticles and the Evaluation of their Antibacterial Effects

Published on: September 27, 2024

Bacterial resistance to silver-based antibiotics.

Alan Lansdown¹, Angela Williams

¹Imperial College Faculty of Medicine, London.

Nursing Times

|March 23, 2007

Summary

True bacterial resistance to silver in wound care is rare, according to current knowledge. This discussion addresses concerns about silver resistance, a potential issue in antimicrobial treatments.

Area of Science:

Microbiology
Infectious Diseases
Wound Management

Background:

Silver has a long history of use as an antimicrobial agent in wound care.
Concerns have been raised regarding the potential for bacteria to develop resistance to silver.
Understanding silver resistance is crucial for effective infection control in wound management.

Purpose of the Study:

To evaluate the current evidence regarding bacterial resistance to silver in the context of wound care.
To discuss the implications of potential silver resistance for clinical practice.

Main Methods:

Literature review and synthesis of existing scientific knowledge on silver antimicrobial activity and resistance.
Discussion of documented cases and proposed mechanisms of silver resistance.

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Main Results:

Based on current scientific understanding, true bacterial resistance to silver is considered rare.
The available evidence does not strongly support widespread or significant silver resistance in clinically relevant bacteria.

Conclusions:

The efficacy of silver-based wound care products is likely to remain high.
Further research may be needed to monitor for any emerging trends in silver resistance.
Clinicians can generally continue to utilize silver-based antimicrobials with confidence in wound care settings.