Isocyanate is the most prevalent agent in occupational asthma(OA) in Korea. We analyzed 43 toluene diisocyanate(TDI) induced OA patients of whom 81% were found to be spray painters. The bronchial sensitivity of all subjects was confirmed by TDI-bronchial challenge test. Serum-specific IgE antibodies to isocyanate-human serum albumin(HSA) conjugate were detected by RAST technique(Pharmacia, Swed...

Data from Washington State's work-related asthma surveillance system were used to characterize isocyanate-induced asthma cases occurring from 1999 through 2010. Injured worker interviews and medical records were used to describe the industry, job title, work process, workers' compensation cost, and exposure trends associated with 27 cases of isocyanate-induced asthma. The majority (81%) of case...

Lubrication of steel using two-dimensional (2D)-materials has been a growing interest in recent years at the macro/microscale for wide range applications including lubricating 440 C-steel satellite and automotive components. This work takes new approach comparing tribological behavior ultrathin-graphite ultrathin-MoS2 varying humidity against custom-fabricated counter-surface friction force mic...

OBJECTIVES The pathogenic basis of respiratory disorders associated with isocyanates are still obscure. One reason for this is the lack of good estimates of human exposure. In this study exposure was estimated by measurement of isocyanate metabolites in biological samples. METHODS In a factory using isocyanate based polyurethane (PUR) glue, isocyanate concentrations in air were measured by li...