Bovine serum albumin (BSA) and ovalbumin (OVA) were used as model substances for proteins.
First-pass extracted concept
Bovine serum albumin
Candidate: toolkit item1 source documents7 linked claims
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BSA
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HONO emissions depend strongly on light intensity, relative humidity, NO2 concentration, and coating thickness.
Quoted textsource-backed
In particular, a strong dependence of HONO emissions on light intensity, relative humidity, NO2 concentrations and the applied coating thickness was found.
Long-term irradiation exposure caused simultaneous decomposition of nitrated proteins.
Quoted textsource-backed
while simultaneous decomposition of (nitrated) proteins was also found during long-term (20 h) irradiation exposure.
NO2 exposure substantially increases HONO emissions from nitrated protein surfaces.
Quoted textsource-backed
NO2 exposure was found to increase HONO emissions substantially.
Sustained HONO formation persists over 20 h even when intact nitrated proteins become too low to detect after gas exchange measurements.
Quoted textsource-backed
The 20 h long-term studies revealed sustained HONO formation, even when concentrations of the intact (nitrated) proteins were too low to be detected after the gas exchange measurements.
Under VIS/UV illuminated conditions with 100 ppb NO2, protein nitration degrees of about 1% were observed.
Quoted textsource-backed
Nitration degrees of about 1 % were derived applying NO2 concentrations of 100 ppb under VIS∕UV illuminated conditions
A Langmuir-Hinshelwood-based reaction mechanism is proposed for NO2 conversion on nitrated protein surfaces.
Quoted textsource-backed
A reaction mechanism for the NO2 conversion based on the Langmuir–Hinshelwood kinetics is proposed.
Proteins can be nitrated by air pollutant NO2, enhancing their allergenic potential.
Quoted textsource-backed
Proteins can be nitrated by air pollutants (NO2), enhancing their allergenic potential.