نتایج جستجو برای: epr spectroscopy
تعداد نتایج: 177850 فیلتر نتایج به سال:
This review paper attempts to provide an overview of the principles and techniques that are often termed electron paramagnetic resonance (EPR) oximetry. The paper discusses the potential of such methods and illustrates they have been successfully applied to measure oxygen tension, an essential parameter of the tumor microenvironment. To help the reader understand the motivation for carrying out...
We have used time-resolved phosphorescence anisotropy and electron paramagnetic resonance (EPR) spectroscopy to detect the rotational dynamics of the Ca-ATPase and its associated lipids in dog cardiac sarcoplasmic reticulum (DCSR), in comparison with rabbit skeletal SR (RSSR), in order to obtain insight into the physical bases for different activities and regulation in the two systems. Protein ...
In rapid-scan EPR the magnetic field or frequency is repeatedly scanned through the spectrum at rates that are much faster than in conventional continuous wave EPR. The signal is directly-detected with a mixer at the source frequency. Rapid-scan EPR is particularly advantageous when the scan rate through resonance is fast relative to electron spin relaxation rates. In such scans, there may be o...
The sensitivity of continuous-wave, non-linear EPR signals to spin–lattice (T1) relaxation has been investigated. The aim was to identify those spectral displays that are most appropriate to obtain structural and dynamic information from spin-label EPR experiments that involve detection of T1-relaxation enhancements. This has been achieved by solving the Bloch equations for the various harmonic...
Using spin labelled red blood cells and electron paramagnetic resonance spectroscopy (EPR), we observed that halothane 3 mmol litre-1 produced a much greater decrease in the rotational correlation time of red blood cells from individuals who were at risk for malignant hyperthermia (MH), compared with normals. Subsequently we performed blind tests on 14 individuals whose MH susceptibility status...
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