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Updated: May 30, 2026

Evaluation of Antimicrobial Activities of Nanoparticles and Nanostructured Surfaces In Vitro

Evaluation of Antimicrobial Activities of Nanoparticles and Nanostructured Surfaces In Vitro

Published on: April 21, 2023

Selenium nanoparticles inhibit Staphylococcus aureus growth.

Phong A Tran¹, Thomas J Webster

¹Physics Department, Brown University, Providence, RI, USA.

International Journal of Nanomedicine

|August 17, 2011

Summary

This summary is machine-generated.

Selenium nanoparticles show promise in combating Staphylococcus aureus infections. This study found that selenium nanoparticles significantly inhibited S. aureus growth and reduced live bacteria, suggesting potential therapeutic applications.

Keywords:

S. aureus antibacterial infection

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Area of Science:

Microbiology
Nanotechnology
Biomedical Science

Background:

Staphylococcus aureus is a prevalent bacterium causing difficult-to-treat infections.
Biofilm formation and antibiotic resistance complicate S. aureus infection management.
The antimicrobial effects of selenium nanoparticles (SeNPs) are largely unexplored.

Purpose of the Study:

To investigate the in vitro effects of selenium nanoparticles on Staphylococcus aureus growth.
To determine the efficacy of SeNPs against S. aureus at varying concentrations and time points.

Main Methods:

In vitro study design.
Exposure of S. aureus cultures to different concentrations of selenium nanoparticles (7.8, 15.5, and 31 μg/mL).
Monitoring bacterial growth and viability over 3, 4, and 5 hours.

Main Results:

Selenium nanoparticles strongly inhibited S. aureus growth at all tested concentrations and time points.
A significant decrease in the percentage of live S. aureus bacteria was observed in the presence of SeNPs.
The inhibitory effect increased with higher concentrations and longer exposure times.

Conclusions:

Selenium nanoparticles demonstrate potent antimicrobial activity against Staphylococcus aureus.
SeNPs show potential as a novel therapeutic agent for preventing and treating S. aureus infections.
Further research is warranted to explore the clinical applications of selenium nanoparticles against S. aureus.