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Nanomaterials have the potential to solve some of the toughest challenges facing modern medicine. Their unique optical, magnetic and chemical properties at the nanoscale make them different from their macroscale counterparts. Successful application of nanomaterials can revolutionize therapeutics, diagnostics and imaging in several biomedical applications. Self-assembled amphiphilic polymeric nanoparticles have been employed to carry poorly soluble chemotherapeutic drugs. Loading of anticancer chemotherapeutic drugs into self assembled polymeric nanoparticles have shown to increase their circulation time, tumor localization and therapeutic potential. This book chapter provides an introductory discussion to organic nanotechnologies for drug delivery. Promising advances in the field of nanomedicine will be discussed and an outlook to the future will be provided.

This study was performed to determine the retardation of retinal circulation in diabetic eye. The velocity of retinal circulation in diabetes was evaluated by means of rapid serial fluorescein angiography, employing a scanning laser ophthalmoscope (SLO).

Newly developed technologies are going to revolutionize the diagnostic procedure in cardiology. Recent progress has been made in nuclear cardiology, sonography, transmission computer tomography and digital video-techniques. Nuclear magnetic resonance seems to offer another possibility for imaging of the heart. Besides the fact, that these procedures are non-invasive and thus avoid the risks of catheter techniques, special advantages of the various techniques are obviously dependant on the cardiac abnormalities under investigation. The information revealed by these various techniques may in some ways even surpass the results obtained by catheter techniques, whereas on some occasions the catheter is obligatory. The history up to the present state of the art of the various techniques has some highlights: Nuclear cardiology started even before artificial radioisotopes were available: In 1927 BLUMGART and WEISS (1) investigated the pulmonary circulation time with the help of radon. In 1948 PRINZMETAL et al.