Spectroscopic analysis of metal contents in mosquito nets used in hernia repair surgery

Abstract

Background

This study aimed to quantitatively evaluate the heavy metal content of several types of mosquito nets used in hernia repair surgery and to determine whether autoclave sterilization weakens the mosquito net material.

Methods

We extracted the metallic contents of a commercial polypropylene surgical mesh as well as polyester, low density polypropylene, and polyethylene mosquito nets via a wet digestion procedure. The extractions were analysed by microwave plasma atomic emis­sion spectroscopy. The breaking strength of the mosquito nets was measured using a tensile tester.

Results

The polypropylene mosquito net metal content was comparable to or less than the metal contents found in commercial surgical meshes and textile fibers.1 The polyester and polyethylene mosquito net metal contents were higher yet below toxic thresholds. The structural integrity of the nets was not compromised by autoclave sterilization.

Conclusions

The metal content of mosquito nets is below toxic thresholds and is comparable to a commercially available surgical mesh. The variability in metal contents found among the mosquito nets is likely due to the manufacturing process. However, there is no evidence that their metal contents are grounds for disqualification as an alternative to commercial surgical mesh.