# Expression of concern: Antibacterial and antibiofilm activities of silver-decorated zinc ferrite nanoparticles synthesized by a gamma irradiation-coupled sol–gel method against some pathogenic bacteria from medical operating room surfaces

## TL;DR

This paper expresses concern about a study on silver-decorated zinc ferrite nanoparticles and their antibacterial effects against medical room bacteria.

## Contribution

The paper raises concerns about the validity or reliability of previously reported findings on antibacterial nanoparticle activity.

## Key findings

- The paper questions the reliability of the antibacterial and antibiofilm activity claims in the original study.
- It highlights potential issues with the experimental methods or data interpretation in the original work.

## Abstract

Expression of concern for ‘Antibacterial and antibiofilm activities of silver-decorated zinc ferrite nanoparticles synthesized by a gamma irradiation-coupled sol–gel method against some pathogenic bacteria from medical operating room surfaces’ by M. I. A. Abdel Maksoud et al., RSC Adv., 2021, 11, 28361–28374, https://doi.org/10.1039/D1RA04785J.