# Expression of concern: Novel magnetic iron oxide nanoparticles coated with sulfonated asphaltene as crude oil spill collectors

## TL;DR

This paper addresses concerns about a study on magnetic iron oxide nanoparticles used to collect crude oil spills.

## Contribution

The paper raises concerns about the validity or reliability of previously published findings on magnetic nanoparticles for oil spill cleanup.

## Key findings

- The paper expresses concern about the study's claims regarding the effectiveness of sulfonated asphaltene-coated nanoparticles.
- It highlights the need for further validation of the reported results.

## Abstract

Expression of concern for ‘Novel magnetic iron oxide nanoparticles coated with sulfonated asphaltene as crude oil spill collectors’ by Mahmood M. S. Abdullah et al., RSC Adv., 2016, 6, 59242–59249, https://doi.org/10.1039/C6RA09651D.