The main advantage of nanomedicine is to get earlier diagnosis of a disease. Diagnosing a disease early leads to less severe and costly therapeutic demands and an improved clinical care. But the human body is a dark place to observe. So, you need special instruments that can cut through the darkness and provide a window into the body. These kinds of instruments are called imaging tools and you may be familiar with some of them. They include ultrasound, Magnetic Resonance Imaging (MRI), and Positron emission tomography (PET). These instruments allow scientists to see more on everything from observation of individual molecules and their movement within cells.
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