A mobile device built by Albuquerque startup RingIR Inc. could soon provide mass screening capability for coronavirus at highly congested settings like airports, with results in seconds.
The National Institutes of Health already financed initial testing on people at the University of New Mexico Hospital and at Emory University in Georgia with promising results. And follow-on funding through NIH’s Rapid Acceleration of Diagnostics, or RADx, initiative is in the works to expand testing to more institutions across the country, said RingIR founder, President and CEO Charles Harb.
“The UNMH trial showed we had something potentially groundbreaking,” Harb told the Journal. “So RADx decided to extend its involvement.”
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Growing demand of Juul and other electronic cigarettes, despite critical knowledge gaps about their chemical composition, has led to concerns regarding their potential health effects. We introduce a novel analytical approach, runtime cavity ringdown spectroscopy (rtCRDS) for rapid detection of oxidative products in e-cigarette aerosols, to facilitate the study of aerosol from a single puff of e-liquid. We report a systematic investigation of three flavors of commercial Juul pods (Virginia tobacco, mango, and menthol) and known commercial e-liquid ingredients (propylene glycol (PG), vegetable glycerin (VG), nicotine, ethyl maltol, benzoic acid, and nicotine benzoate) vaped using Juul devices. Juul e-liquids and neat chemical additives spiked into a 30:70 PG/VG solution were vaped and their aerosols were collected in 1-L Tedlar gas bags and analyzed using rtCRDS. Acetaldehyde, formaldehyde, and acetone were identified as primary oxidative products in aerosolized PG/VG. Ethanol was detected as a major constituent of the three commercial Juul flavors. Spectral intensities of carbonyl compounds increased with the addition of spikes, benzoic acid, ethyl maltol, and nicotine to PG/VG, suggesting that oxidative product generation increases with common additives. The method of direct, rapid analysis of e-cig aerosols introduced here can be used to complement traditional methods in vaping exposures.