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Raman Spectroscopy And Diffuse Reflectance Spectroscopy For Diagnosis Of Human Cancer And Acanthosis Nigricans, Suneetha Devpura
Raman Spectroscopy And Diffuse Reflectance Spectroscopy For Diagnosis Of Human Cancer And Acanthosis Nigricans, Suneetha Devpura
Wayne State University Dissertations
Cancer and diabetes are common chronic diseases in today's world causing numerous deaths in adults as well as children. Most common types of cancers in adults include prostate, lung, breast, colorectal and head and neck squamous cell carcinoma, while among children; leukemia, and brain and central nervous system cancers are quite common. In each of these cases, early detection of the cancer or disease dramatically increases the chances of successful treatment. In recent years, there has been much interest in using Raman spectroscopy and diffuse reflectance spectroscopy as analytical optical spectroscopic methods for early diagnosis of diseases. Raman spectroscopy can …
Effects Of Transition Metal Doping On Multiferroic Ordering In Ni3v2o8 And Fevo4, Akila Deeghayu Kumarasiri
Effects Of Transition Metal Doping On Multiferroic Ordering In Ni3v2o8 And Fevo4, Akila Deeghayu Kumarasiri
Wayne State University Dissertations
We have studied the effects of doping both non-magnetic and magnetic ions on the phase transitions and multiferroic ordering in two multiferroic oxides; Ni3V2O8 and FeVO4. Magnetic, dielectric, specific heat, polarization and AC susceptibility measurements were used to track changes in phase transition temperatures. We found that the two higher temperature magnetic transitions in Ni3V2O8; TH = 9.1 K and TL = 6.3 K are suppressed to lower temperatures with all transition metal dopants. For Zn doping, the rates of the suppression of both TH and TL with dopant fraction are consistent with simple site dilution for two-dimensional spin systems, …