FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4245178043> ?p ?o ?g. }

• W4245178043 abstract "Abstract. The adverse health effects associated with ambient aerosol particles have been well documented, but it is still unclear which aerosol properties are most important for their negative health impact. Some studies suggest the oxidative effects of particle bound reactive oxygen species (ROS) are potential major contributors to the toxicity of particles. Traditional ROS measurement techniques are labour intense, give poor temporal resolution, and generally have significant delays between aerosol sampling and ROS analysis. However, many oxidizing particle components are reactive and thus potentially short lived. Thus, a technique to quantify particle-bound ROS online would be beneficial to quantify also the short-lived ROS components. We introduce a new portable instrument to allow on-line, continuous measurement of particle-bound ROS using a chemical assay of 2'7'-dichlorofluorescein (DCFH) with horseradish peroxidase (HRP), via fluorescence spectroscopy. All components of the new instrument are attached to a containing shell, resulting in a compact system capable of automated continuous field deployment over many hours to days. From laboratory measurements, the instrument was found to have a detection limit of ~4 nmol[H2O2]equivalents per m3 air, a dynamic range up to at least ~2000 nmol[H2O2]equivalents per m3 air, and a time resolution under 12 minutes. The instrument allows for ~12 hours automated measurement if unattended, and shows a fast response to changes in concentrations of laboratory-generated oxidised organic aerosol. The instrument was deployed at an urban site in London and particulate ROS levels of up to 24 nmol[H2O2]equivalents per m3 air were detected with PM2.5 concentrations up to 28 μg m-3. The new and portable On-line Particle-bound ROS Instrument (OPROSI) allows fast-response quantification; this is important due to the potentially short-lived nature of particle-bound ROS as well as fast changing atmospheric onditions, especially in urban environments. The instrument design allows for automated operation and extended field operation. As well as having sensitivity suitable for ambient level measurement, the instrument is also suitable at concentrations such as those required for toxicological studies." @default.
• W4245178043 created "2022-05-12" @default.
• W4245178043 creator A5000703708 @default.
• W4245178043 creator A5014676435 @default.
• W4245178043 creator A5036116131 @default.
• W4245178043 creator A5045635576 @default.
• W4245178043 creator A5053157011 @default.
• W4245178043 creator A5063638862 @default.
• W4245178043 date "2016-06-23" @default.
• W4245178043 modified "2023-09-29" @default.
• W4245178043 title "An Automated On-line Instrument to Quantify Aerosol-Bound Reactive Oxygen Species (ROS) for Ambient Measurement and Health Relevant Aerosol Studies" @default.
• W4245178043 doi "https://doi.org/10.5194/amt-2016-183" @default.
• W4245178043 hasPublicationYear "2016" @default.
• W4245178043 type Work @default.
• W4245178043 citedByCount "0" @default.
• W4245178043 crossrefType "posted-content" @default.
• W4245178043 hasAuthorship W4245178043A5000703708 @default.
• W4245178043 hasAuthorship W4245178043A5014676435 @default.
• W4245178043 hasAuthorship W4245178043A5036116131 @default.
• W4245178043 hasAuthorship W4245178043A5045635576 @default.
• W4245178043 hasAuthorship W4245178043A5053157011 @default.
• W4245178043 hasAuthorship W4245178043A5063638862 @default.
• W4245178043 hasBestOaLocation W42451780431 @default.
• W4245178043 hasConcept C107872376 @default.
• W4245178043 hasConcept C111368507 @default.
• W4245178043 hasConcept C127313418 @default.
• W4245178043 hasConcept C178790620 @default.
• W4245178043 hasConcept C185592680 @default.
• W4245178043 hasConcept C2778517922 @default.
• W4245178043 hasConcept C2779345167 @default.
• W4245178043 hasConcept C2779964046 @default.
• W4245178043 hasConcept C39432304 @default.
• W4245178043 hasConcept C48349386 @default.
• W4245178043 hasConcept C55493867 @default.
• W4245178043 hasConcept C77176794 @default.
• W4245178043 hasConceptScore W4245178043C107872376 @default.
• W4245178043 hasConceptScore W4245178043C111368507 @default.
• W4245178043 hasConceptScore W4245178043C127313418 @default.
• W4245178043 hasConceptScore W4245178043C178790620 @default.
• W4245178043 hasConceptScore W4245178043C185592680 @default.
• W4245178043 hasConceptScore W4245178043C2778517922 @default.
• W4245178043 hasConceptScore W4245178043C2779345167 @default.
• W4245178043 hasConceptScore W4245178043C2779964046 @default.
• W4245178043 hasConceptScore W4245178043C39432304 @default.
• W4245178043 hasConceptScore W4245178043C48349386 @default.
• W4245178043 hasConceptScore W4245178043C55493867 @default.
• W4245178043 hasConceptScore W4245178043C77176794 @default.
• W4245178043 hasLocation W42451780431 @default.
• W4245178043 hasLocation W42451780432 @default.
• W4245178043 hasLocation W42451780433 @default.
• W4245178043 hasLocation W42451780434 @default.
• W4245178043 hasLocation W42451780435 @default.
• W4245178043 hasOpenAccess W4245178043 @default.
• W4245178043 hasPrimaryLocation W42451780431 @default.
• W4245178043 hasRelatedWork W1039233 @default.
• W4245178043 hasRelatedWork W10770745 @default.
• W4245178043 hasRelatedWork W1333183 @default.
• W4245178043 hasRelatedWork W27379839 @default.
• W4245178043 hasRelatedWork W27768168 @default.
• W4245178043 hasRelatedWork W4701602 @default.
• W4245178043 hasRelatedWork W4864266 @default.
• W4245178043 hasRelatedWork W5358806 @default.
• W4245178043 hasRelatedWork W9435658 @default.
• W4245178043 hasRelatedWork W20778061 @default.
• W4245178043 isParatext "false" @default.
• W4245178043 isRetracted "false" @default.
• W4245178043 workType "article" @default.