objective(s): this paper describes coating of magnetite nanoparticles (mnps) with amorphous silica shells.   materials and methods: first, magnetite (fe3o4) nps were synthesized by co-precipitation method and then treated with stabilizer molecule of trisodium citrate to enhance their dispersibility. afterwards, coating with silica was carried out via a sol-gel approach in which the electrostati...

recent progress in nanotechnology and electrochemical methods can be applied to fine control of the size, crystal structure, and surface properties of iron oxide nanoparticles. here we appliedcathodic electrochemical deposition (ced) as an efficient and effective tactic for synthesisand double coating of surface of superparamagnetic iron oxide nanoparticles (spions). in first step, bare fe3o4 n...

Laser-tissue interaction is of great interest due to its significant application in biomedical optics in both diagnostic and treatment purposes. Major aspects of the laser-tissue interaction which has to be considered in biomedical studies are the thermal properties of the tissue and the thermal changes caused by the interaction of light and tissue. In this review paper the effects of light on ...

During the PhD, the candidates develop a scientifi c research project dealing with a complex problem (which can be at different scales, from the molecular and the cellular levels to living organisms up to biomedical systems) and investigate original methods, devices, and systems with different purposes: increasing knowledge, proposing innovative methods for diagnosis and therapy as well as impr...

Biomedical signals such as ECG, EMG, and EEG are extremely important in the diagnosis of patients. It is difficult to filter noise from these signals, and errors resulting from filtering can distort a biomedical signal. Existing systems have shown poor performance when complicated noise appears. Adaptive filtering is selected to contend with these defects. Existing adaptive filters can adjust t...

There is a great interest in the development of new nanomaterials for multimodal imaging applications in biology and medicine. Multimodal fluorescent-magnetic based nanomaterials deserve particular attention as they can be used as diagnostic and drug delivery tools, which could facilitate the diagnosis and treatment of cancer and many other diseases. This review focuses on the recent developmen...

Nanoparticles are one of the most important prominent areas in the field of nanotechnology, with a broad significant role in current life sciences and human healthcare applications. Among the nanoparticles silica nanoparticles are explored in many biological applications because their size dependent novel properties and functions differ drastically from those of the bulk materials. In biomedica...

While this attention is both justified and welcome, it may lead to over enthusiastic screening, unnecessary diagnosis, and unwarranted treatment. Such diagnostic and therapeutic “errors of commission,” or misadventures, are especially of risk in an antenatal setting, where both mother and fetus are exposed to any intervention. These risks can be biomedical or psychosocial in nature. Unwanted hy...

ACCURACY AND PATIENT DOSE IN NEUTRON STIMULATED EMISSION COMPUTED TOMOGRAPHY FOR DIAGNOSIS OF IRON OVERLOAD: SIMULATIONS IN GEANT4 by Anuj Jawahar Kapadia Department of Biomedical Engineering Duke University Date:_______________________ Approved: ___________________________ Georgia D. Tourassi, Ph.D., Supervisor ___________________________ Gregg E. Trahey, Ph.D., Supervisor ____________________...

There is a significant increase in the use of biomedical images in clinical medicine, disease research, and education. While the literature lists several successful methods that were developed and implemented for content-based image retrieval and recognition, they have been unable to make significant inroads in biomedical image recognition domain. The use of computer-aided diagnosis has been in...