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Magnetic Polymer Colloids for Ultrasensitive Molecular Imaging

Magnetic resonance imaging for in vivo diagnosis has been widely used based on numerous contrast agents ranging from molecular size to nanoparticles. This non-invasive technique has been used for various instantaneous in vivo diagnosis via direct imaging of the body to evaluate the state of different organs including spleen, liver, kidneys, pancreas, blood vessels, all possible tumors of chest and abdomen, inflammatory bowel disease and vessel, malformations of the blood vessels and fetus in the womb, etc. Then the aim of this chapter is not only to report the fundamentals and the basis of magnetic resonance imaging, but also the recent developments and utilization in life sciences. In addition, ultrasensitive molecular imaging through the development of combinatorial thin film gradients containing magnetic nanoparticles is reported and described.