Atmospheric Oxygen
Atmospheric Oxygen - Related Videos
09:34
Extraction and Characterization of Surfactants from Atmospheric Aerosols
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Cited by 26 •
2017
Methods are presented for the targeted extraction of surfactants present in atmospheric aerosols and the determination of their absolute concentrations and surface tension curves in water, including their Critical Micelle Concentration (CMC).
13:27
Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface
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Cited by 9 •
2015
A protocol for the design and construction of a soil tank interfaced to a small climate controlled wind tunnel to study the effects of atmospheric forcings on evaporation is presented. Both the soil tank and wind tunnel are instrumented with sensor technologies for the continuous in situ measurement of environmental conditions.
02:33
Assessing Atmospheric Pressure Plasma Treatment in Glucose-Deprived Neuroblastoma Cells
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2025
Source: Yan, X., et. al., New Application of an Atmospheric Pressure Plasma Jet as a Neuro-protective Agent Against Glucose Deprivation-induced Injury of SH-SY5Y Cells. J. Vis. Exp. (2017)The video demonstrates the neuroprotective activity of low-dose atmospheric pressure plasma treatment in glucose-deprived neuroblastoma cells by modulating oxidative stress and enhancing cell viability.
08:58
Cerebral Blood Oxygenation Measurement Based on Oxygen-dependent Quenching of Phosphorescence
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Cited by 27 •
2011
We present an experimental procedure for measuring the partial pressure of oxygen (pO2) in cerebral vasculature based on oxygen-dependent quenching of phosphorescence. Animal preparation and imaging procedures were outlined for both large field of view CCD-based imaging of pO2 in rats and 2-photon excitation based imaging of pO2 in mice.
08:36
An Atmospheric Pressure Plasma Setup to Investigate the Reactive Species Formation
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Cited by 20 •
2016
An experimental setup was created for the helium-operated kHz frequency plasma jet. The setup includes a cage for the plasma power supply and jet and an in-house built reactor to monitor plasma-induced reactive species without the interference of the ambient atmosphere.
FAQs
Oxygen’s key cellular role is to accept electrons at the end of the mitochondrial electron transport chain. This terminal acceptance permits the chain’s electron-transfer reactions to support ATP generation during cellular respiration. Consequently, oxygen availability directly affects how effectively aerobic organisms can obtain usable chemical energy from cellular nutrients.
During photosynthesis, splitting water supplies the oxygen that photosynthetic organisms release into the atmosphere. This links photosynthetic activity with the oxygen resource later used by aerobic respiration. The connection is biologically important because production and consumption are complementary processes: one adds oxygen to the environment, while the other uses it to extract energy.
Atmospheric oxygen also participates in ozone formation, giving oxygen significance beyond cellular metabolism. The resulting ozone contributes to protection from ultraviolet radiation, so oxygen levels influence both biological energy use and the atmospheric conditions that help shield life. This connection places atmospheric oxygen at the intersection of physiology, ecology, and planetary chemistry.
Its biological cycling helps researchers connect oxygen availability with the evolution of aerobic life, energy flow, and the environmental conditions that sustain organisms. Because photosynthetic production and respiratory consumption link organisms to the atmosphere, oxygen provides useful context for interpreting how biology and planetary conditions shape one another.
Oxygen availability can shape organism distribution because it determines whether aerobic metabolism can be supported in a given environment. The same environmental variable also affects ecosystem processes such as decomposition. In biology, relating where organisms occur to oxygen conditions helps connect metabolism with larger patterns of community organization and habitat suitability.
Respiratory use of oxygen connects atmospheric chemistry with the movement of energy through ecosystems. Organisms consume oxygen during cellular respiration to generate ATP, while decomposition is among the biological processes influenced by oxygen availability. Studying these links helps biologists interpret how atmospheric conditions affect energy use and the processing of biological material within ecosystems.