Results 1 to 10 of about 13,053 (263)

Residual Isocyanates in Medical Devices and Products: A Qualitative and Quantitative Assessment [PDF]

open access: yesEnvironmental Health Insights, 2016
We conducted a pilot qualitative and quantitative assessment of residual isocyanates and their potential initial exposures in neonates, as little is known about their contact effect.
Gillian Franklin   +8 more
doaj   +2 more sources

Occupational exposure to selected isocyanates in Polish industry [PDF]

open access: yesMedycyna Pracy, 2015
Background: Isocyanates constitute a group of highly reactive, low molecular weight chemicals used worldwide for polyurethane manufacturing. The occupational exposure to these compounds is a major cause of occupational asthma, thus it is very important ...
Sławomir Brzeźnicki   +1 more
doaj   +2 more sources

Elevated concentrations of methyl isocyanate and isocyanic acid in cigarette smoke. [PDF]

open access: yesEnviron Sci Pollut Res Int
Abstract Monoisocyanates are usually intermediates of industrial processes but alkyl-isocyanates and isocyanic acid can also be created when nitrogen-containing compounds thermally degrade. One of the most notable monoisocyanates, methyl isocyanate (MIC), was accidentally released to the surrounding from a pesticide plant in the Bhopal ...
Runström Eden G   +5 more
europepmc   +3 more sources

Nucleophilic Isocyanation [PDF]

open access: yesACS Omega, 2020
Isonitriles are frequently employed as both substrates for organic transformations and ligands for organometallic chemistry. However, despite the wide application of the isonitriles, their synthesis generally depends on the traditional dehydration of N-formamide.
Taiga Yurino, Takeshi Ohkuma
openaire   +3 more sources

Synthesis, Molecular Docking, and Bioactivity Study of Novel Hybrid Benzimidazole Urea Derivatives: A Promising α-Amylase and α-Glucosidase Inhibitor Candidate with Antioxidant Activity

open access: yesPharmaceutics, 2023
A novel series of benzimidazole ureas 3a–h were elaborated using 2-(1H-benzoimidazol-2-yl) aniline 1 and the appropriate isocyanates 2a–h. The antioxidant and possible antidiabetic activities of the target benzimidazole-ureas 3a–h were evaluated.
Lotfi M. Aroua   +8 more
doaj   +1 more source

Epigenetic Markers Are Associated With Differences in Isocyanate Biomarker Levels in Exposed Spray-Painters

open access: yesFrontiers in Genetics, 2021
Isocyanates are respiratory and skin sensitizers that are one of the main causes of occupational asthma globally. Genetic and epigenetic markers are associated with isocyanate-induced asthma and, before asthma develops, we have shown that genetic ...
Laura W. Taylor   +3 more
doaj   +1 more source

Isocyanates as Precursors to Biomedical Polyurethanes

open access: yesChemical Engineering Transactions, 2014
This work is a review of the main chemical properties of aliphatic and aromatic isocyanates and their advantages and disadvantages when used as precursors for polyurethane (PU) synthesis, to be applied as biomedical polyurethanes.
L. Gabriel   +4 more
doaj   +1 more source

Increase of Exhaled Nitric Oxide (eNO) after Methylene Diphenyl Diisocyanate (MDI) Exposure in Isocyanate Workers with Bronchial Hyperresponsiveness

open access: yesAllergology International, 2005
Background: : Isocyanates have become one of the most important causes of occupational asthma in industrialized countries. Increased exhaled nitric oxide (eNO) levels have been shown to be associated with allergic airway inflammation.
Xaver Baur, Luba Barbinova
doaj   +1 more source

Influence of Genetic Variance on Biomarker Levels After Occupational Exposure to 1,6-Hexamethylene Diisocyanate Monomer and 1,6-Hexamethylene Diisocyanate Isocyanurate

open access: yesFrontiers in Genetics, 2020
We evaluated the impact of genetic variance on biomarker levels in a population of workers in the automotive repair and refinishing industry who were exposed to respiratory sensitizers 1,6-hexamethylene diisocyanate (HDI) monomer and one of its trimers ...
Laura W. Taylor   +4 more
doaj   +1 more source

Novel bio-based epoxy-polyurethane materials from modified vegetable oils – synthesis and characterization

open access: yeseXPRESS Polymer Letters, 2017
Presented research shows the results of a study on mechanical properties of materials obtained in the course of innovatory application of epoxidized vegetable oil in the synthesis of new bio-based epoxy resins, crosslinked with curing agents which are ...
A. Sienkiewicz, P. Czub
doaj   +1 more source

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