Results 1 to 10 of about 209,794 (157)

Sensing of Oxygen Partial Pressure in Air with ZnO Nanoparticles [PDF]

open access: yesSensors, 2020
The demand for sensors in response to oxygen partial pressure in air is increasingly high in recent years and small-size sensors on a micrometer scale and even a nanometer scale are particularly desirable.
Xin Chang, Shunpu Li, Daping Chu
doaj   +6 more sources

Oxygen Partial Pressure Is a Rate-Limiting Parameter for Cell Proliferation in 3D Spheroids Grown in Physioxic Culture Condition. [PDF]

open access: yesPLoS ONE, 2016
The in situ oxygen partial pressure in normal and tumor tissues is in the range of a few percent. Therefore, when studying cell growth in 3D culture systems, it is essential to consider how the physiological oxygen concentration, rather than the one in ...
Aurélie Gomes   +5 more
doaj   +4 more sources

Development of a Patch-Type Flexible Oxygen Partial Pressure Sensor [PDF]

open access: yesIEEE Journal of Translational Engineering in Health and Medicine, 2020
Oxygen concentration in living organisms is one of the important vital indicators in emergency care and bedside medical settings. However, the oximetry method has limitations: the measurement site is limited to the tissue containing blood and the ...
Yuta Katayama   +2 more
doaj   +2 more sources

Effect of Temperature-Dependent Low Oxygen Partial Pressure Annealing on SiC MOS [PDF]

open access: yesNanomaterials
Oxygen post annealing is a promising method for improving the quality of the SiC metal oxide semiconductor (MOS) interface without the introduction of foreign atoms.
Qian Zhang   +5 more
doaj   +2 more sources

Effect of Sputtering Oxygen Partial Pressure on the Praseodymium-Doped InZnO Thin Film Transistor Using Microwave Photoconductivity Decay Method [PDF]

open access: yesMicromachines, 2021
The praseodymium-doped indium-zinc-oxide (PrIZO) thin film transistor (TFT) shows broad application prospects in the new generation of display technologies due to its high performance and high stability. However, traditional device performance evaluation
Huansong Tang   +9 more
doaj   +2 more sources

Influence of oxygen partial pressure on the characteristics of human hepatocarcinoma cells. [PDF]

open access: yesRedox Biol, 2017
Most of the in vitro studies using liver cell lines have been performed under atmospheric oxygen partial pressure (21% O2). However, the oxygen concentrations in the liver and cancer cells are far from this value. In the present study, we have evaluated the influence of oxygen on 1) the tumor cell lines features (growth, steady-state ROS levels, GSH ...
Trepiana J   +5 more
europepmc   +5 more sources

Relating oxygen partial pressure, saturation and content: the haemoglobin-oxygen dissociation curve. [PDF]

open access: yesBreathe (Sheff), 2015
Key PointsIn clinical practice, the level of arterial oxygenation can be measured either directly by blood gas sampling to measure partial pressure (PaO2) and percentage saturation (SaO2) or indirectly by pulse oximetry (SpO2).This review addresses the strengths and weaknesses of each of these tests and gives advice on their clinical use.The ...
Collins JA   +4 more
europepmc   +5 more sources

Effect of Oxygen Partial Pressure on Oxidation of Iron at 573 K

open access: yesJournal of Nuclear Science and Technology, 1984
The oxidation of iron was investigated by Rutherford backscattering spectroscopy at 573 K under the oxygen partial pressure from 10−1 to 105 Pa for 3~24 h. In the first stage of oxidation, thickness of the oxide film reached the maximum around 1 Pa. In the second stage the oxidation obeyed the parabolic rate law.
Hitoshi Sakai   +2 more
exaly   +2 more sources

Oxygen: A Stimulus, Not “Only” a Drug

open access: yesMedicina, 2021
Depending on the oxygen partial pressure in a tissue, the therapeutic effect of oxygenation can vary from simple substance substitution up to hyperbaric oxygenation when breathing hyperbaric oxygen at 2.5–3.0 ATA. Surprisingly, new data showed that it is
Costantino Balestra, Jacek Kot
doaj   +1 more source

Formation and Detection of Hydrogen by Oxygen Discharge Using Oxygen Pump-Sensor

open access: yesHydrogen, 2022
An oxygen pump sensor was constructed using yttria-stabilized zirconia, which is an oxide ion conductor, and oxygen was discharged from steam to generate hydrogen.
Michihisa Fukumoto, Kano Nakajima
doaj   +1 more source

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