The Contribution of Electron Paramagnetic Resonance to Melanoma Research
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چکیده
منابع مشابه
The Contribution of Electron Paramagnetic Resonance to Melanoma Research
The incidence of malignant melanoma, the most dangerous form of skin cancer, is rising each year. However, some aspects of the tumor initiation and development are still unclear, and the current method of diagnosis, based on the visual aspect of the tumor, shows limitations. For these reasons, developments of new techniques are ongoing to improve basic knowledge on the disease and diagnosis of ...
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Electron Paramagnetic Resonance (EPR) spectroscopy, also known as Electron Spin Resonance(ESR) especially among physicists, is a strong and versatile spectroscopic method forinvestigation of paramagnetic systems, i.e. systems like free radicals and most transition metalions, which have unpaired electrons. The sensitivity and selectivity of EPR are notable andintriguing as compared to other spec...
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where E0 is the energy level without any external magnetic field B = B0êz. Again, g denotes the g factor[5]. For induced transitions, the selection rule is ∆ms = ±1. For unpaired electrons, however, this selection rule is observed for all transitions, as S = 12 and, hence, ms ∈ {− 12 , 2}. The previous formulas are based on the assumption that the response of the material on the external magnet...
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Hyperpolarization via dissolution dynamic nuclear polarization (DNP) is a versatile method to dramatically enhance the liquid-state NMR signal of X-nuclei and can be used for performing metabolic and molecular imaging. It was recently demonstrated that instead of incorporating persistent radicals as source of unpaired electron spins, required for DNP, nonpersistent radicals can be photoinduced ...
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In 1921, Gerlach and Stern observed that a beam of silver atoms splits into two lines when it is subjected to a magnetic field [1–3]. While the line splitting in optical spectra, first found by Zeeman in 1896 [4, 5], could be explained by the angular momentum of the electrons, the s-electron of silver could not be subject to such a momentum, not to mention that an azimuthal quantum number l = 1...
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ژورنال
عنوان ژورنال: Journal of Skin Cancer
سال: 2011
ISSN: 2090-2905,2090-2913
DOI: 10.1155/2011/273280