Chemical composition of explanted deteriorated nephrostomy polyurethane-catheters through X-ray photoelectron spectroscopy

Ureteral catheters are a fundamental part of the modern urologist's armamentarium. X-ray photoelectron spectroscopy (XPS) was used for the first time as a powerful analytical tool for the study of the chemical composition of nephrostomy catheters retrieved from patients who had undergone nephro...

Full description

Saved in:
Bibliographic Details
Published in:Materials chemistry and physics 2020-01, Vol.239, p.121979, Article 121979
Main Authors: Fernández-Grajera, María, Hierro-Oliva, Margarita, Alarcón, Luis Fernández-de, Gallardo-Moreno, Amparo M.
Format: Article
Language:English
Subjects:
Alkaline earth metals
Barium
Biomaterial
Catheters
Chemical composition
Chemical elements
Deterioration
Fluorine
Materials degradation
Organic chemistry
Photoelectrons
Polyurethane catheter
Polyurethane resins
Spectrum analysis
Urine
X ray photoelectron spectroscopy
XPS
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Ureteral catheters are a fundamental part of the modern urologist's armamentarium. X-ray photoelectron spectroscopy (XPS) was used for the first time as a powerful analytical tool for the study of the chemical composition of nephrostomy catheters retrieved from patients who had undergone nephrostomy to detect their chemical deterioration inside the human body. Depth profile analysis provided not only the composition of the surface but also that of the catheter bulk. The results obtained by XPS showed the presence of calcium and other ions, such as phosphorus, sulphur and fluorine in the explanted deteriorated catheters. The detection of barium on the surface of all the retrieved catheters has special relevance. This chemical element is usually incorporated as a radiomarker in the catheter polymeric matrix and its diffusion from the bulk material to the surface must be responsible for its XPS detection. The accumulation of high levels of this element from toxic barium salts in cases of urine drainage failure could lead to its adsorption from the surrounding tissues into the patient's body, thus compromising the safety concentrations of this soft alkaline earth metal. •The XPS technique is optimum to analyzed the surface chemical composition of medical polymer device.•Just over half of the catheters suffer changes or damages on their surfaces, after being used.•The XPS shows on the surface of damaged catheters calcium and other ions from urine.•The results of catheters immersed in artificial urine indicate that there is a diffused of Ba to the urine from the material.
ISSN:0254-0584
1879-3312
DOI:10.1016/j.matchemphys.2019.121979