Reversible Oxygenation
Reversible Oxygenation - Related Videos
08:58
Cerebral Blood Oxygenation Measurement Based on Oxygen-dependent Quenching of Phosphorescence
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Cited by 28 •
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.
09:08
Detecting Reactive Oxygen Species
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2023
Reactive oxygen species are chemically active, oxygen-derived molecules capable of oxidizing other molecules. Because of their reactive nature, there are many deleterious effects associated with unchecked ROS production, including structural damage to DNA and other biological molecules. However, ROS can also be mediators of physiological signaling. There is accumulating evidence that ROS play significant roles in everything from activation of transcription factors to the mediation of...
11:46
Synthesis of an Oxygen-Carrying Cobalt(II) Complex
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2023
Source: Deepika Das, Tamara M. Powers, Department of Chemistry, Texas A&M University Bioinorganic chemistry is the field of study that investigates the role that metals play in biology. Approximately half of all proteins contain metals and it is estimated that up to one third of all proteins rely on metal-containing active sites to function. Proteins that feature metals, called metalloproteins, play a vital role in a variety of cell functions that are necessary for life. Metalloproteins...
10:10
Reverse Total Shoulder Arthroplasty
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Cited by 5 •
2011
Reverse total shoulder arthroplasty is indicated for the treatment of conditions that cannot be treated with conventional arthroplasty or other procedures. These primarily include degenerative and incapacitating conditions with irreparable rotator cuff and loss of the normal biomechanical coupling of the shoulder.
09:39
Creation of Reversible Cholestatic Rat Model
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2011
Cholestasis is a clinical condition commonly encountered by both surgeons and gastroenterologists. Creation of a reversible cholestatic rat model can be challenging in view of the smaller size and unique hepatopancreatobiliary anatomy in rats. This video article demonstrates the creation of a reversible cholestatic model.
FAQs
The equilibrium responds to the surrounding oxygen partial pressure and temperature. Changing oxygen partial pressure can favor oxygen loading or release, while temperature changes can alter the balance between those states. These variables therefore determine when an oxygen carrier captures O2 and when it gives O2 back, which is essential for transport, storage, and controlled release.
The ligand environment helps determine how a metal center interacts with molecular oxygen. Changes in surrounding ligands can alter the oxygen-binding behavior and the conditions under which loading or release occurs. In chemistry, controlling this environment provides a way to tune reversible oxygenation for sensors, artificial carriers, separation systems, and responsive catalytic materials.
Its key advantage is that oxygen loading and release can occur without permanently altering the oxygen carrier. That reversibility allows the same carrier or reactive site to participate repeatedly in oxygen uptake and delivery. By contrast, a permanent chemical change would limit repeated cycling and would be less suitable for transport, storage, or responsive sensing.
A useful study should consider oxygen partial pressure, temperature, solvent conditions, and ligand environment because each can influence the equilibrium. Researchers can examine how changing these variables affects oxygen loading and release, then relate the response to the intended function. This approach supports the design of systems with controlled oxygen binding rather than relying on fixed behavior.
Oxygen-sensitive systems can use changes in oxygen binding to respond to the surrounding oxygen level. Separation systems similarly depend on selective oxygen uptake followed by release under changed conditions. Because the carrier can cycle between oxygen-loaded and oxygen-released states, this chemistry offers a basis for monitoring oxygen or managing its movement through a material.
In biological systems, reversible oxygenation enables proteins such as hemoglobin to load oxygen in the lungs and release it in tissues. This coordinated uptake and delivery links oxygen availability to physiological transport. The same chemical principle also informs artificial oxygen-carrier research, where chemists seek systems that reproduce controlled oxygen loading and release.