Aerobic removal of iodinated contrast medium by nano-sized zero-valent iron: A combination of oxidation and reduction.

08:00 EDT 25th March 2019 | BioPortfolio

Summary of "Aerobic removal of iodinated contrast medium by nano-sized zero-valent iron: A combination of oxidation and reduction."

The removal performance and mechanisms of diatrizoate (DTA), a typical iodinated contrast medium, from water by nano-sized zero-valent iron (nZVI) under aerobic conditions were investigated in this study. Reactive oxygen species (ROS) and transformation products were detected with electron spin resonance and liquid chromatography electrospray ionization tandem mass spectrometry, respectively. Furthermore, the effects of several operational parameters on DTA removal were illustrated. The results showed that nZVI had a much higher DTA removal ability compared to microscale zero-valent iron (mZVI) in the presence of oxygen. Moreover, the detection of ROS and I as well as the analysis of intermediate products suggested a combination of oxidation and reduction pathways for DTA removal by nZVI under aerobic conditions. Additionally, a high dosage of nZVI and acidic conditions led to the enhancement of DTA removal, while nZVI aging, as well as chloride and nitrate ions in the solution, had negative effects on the degradation of DTA by nZVI in the presence of oxygen.


Journal Details

This article was published in the following journal.

Name: Journal of hazardous materials
ISSN: 1873-3336
Pages: 417-424


DeepDyve research library

PubMed Articles [11249 Associated PubMed Articles listed on BioPortfolio]

Patients with a history of hypersensitivity reaction to iodinated contrast medium and given iodinated contrast during an interventional pain procedure.

In patients with a history of a hypersensitivity reaction to iodinated contrast medium, iodinated contrast medium is avoided, antihistamine and steroid premedication are given, or a gadolinium-based c...

Removal of Cr(VI) with Nano-FeS and CMC-FeS and Transport Properties in Porous Media.

We investigated the effect of CMC dosage on dispersibility and sedimentation of FeS,and the effects of initial Cr(VI) concentrations,reaction temperatures and initial pH values on the Cr(VI) removal b...

Repeat Contrast Medium Administration for Patients with Mild Immediate Hypersensitivity Reaction to Iodinated Contrast Media.

Effects of nano-sized MnO on methanogenic propionate and butyrate degradation in anaerobic digestion.

The responses of methanogenic propionate and butyrate degradation to nano-sized MnO exposure were explored. The results showed that supplementation with 50 mg/g volatile suspended solids (VSS) of na...

Magnetic nano-nets for capture of microbes in solution based on physical contact.

Self-assembly of Au nanoparticles with Fe ions is used to develop magnetic nano-nets similar to fishing nets for capture and removal of microbes in aqueous medium. The nano-nets have a high aspect rat...

Clinical Trials [3573 Associated Clinical Trials listed on BioPortfolio]

Pediatric Risk of Hypothyroidism With Iodinated Contrast Media

This is a Phase 4 multicenter prospective study to estimate the proportion of patients aged birth to 3 years who develop hypothyroidism after receiving intravascular iohexol (Omnipaque™)...

Incidence of Acute Renal Failure Associated With Iodinated Contrast Agents in Pediatrics

Iodinated contrast media are now frequently used in diagnostic imaging exams, including pediatrics. In adults, the acute renal failure (ARF) associated with contrast agents (CA-AKI) occur...

Cholangiography Using Carbon Dioxide Versus Iodinated Contrast in ERCP

Carbon dioxide (CO2) gas is widely used for luminal insufflation during endoscopic retrograde cholangiopancreatography (ERCP) of the biliary tract. While frequently observed during routine...

Iodinated Contrast Agents and Risk of Hypothyroidism in Young Children in the United States

This study will estimate the incidence of hypothyroidism in a pediatric population of children under age 4, based on data from the US-based Kaiser Permanente Northern California database, ...

Study of Iodine Contrast Media Extravasation

The purpose of this study is to determine the best intervention after the extravasation of the iodinated contrast medium out of a vessel into the surrounding tissues.

Medical and Biotech [MESH] Definitions

An iodinated radiographic contrast medium used as acetrizoate sodium in HYSTEROSALPINGOGRAPHY.

1-Deoxy-1-(methylamino)-D-glucitol. A derivative of sorbitol in which the hydroxyl group in position 1 is replaced by a methylamino group. Often used in conjunction with iodinated organic compounds as contrast medium.

Iodinated pyridine derivatives that are often used as contrast media.

The family of civets which are small and medium-sized Old World carnivores, often striped or spotted.

Ethyl ester of iodinated fatty acid of poppyseed oil. It contains 37% organically bound iodine and has been used as a diagnostic aid (radiopaque medium) and as an antineoplastic agent when part of the iodine is 131-I. (From Merck Index, 11th ed)

Quick Search


DeepDyve research library

Searches Linking to this Article