Creation of solids and surfaces with a modified molecular structure. In practice, this will result in metals, inorganic and organic compounds, nanotubes, biocompatible polymers (plastics) and other materials imitating the tissues of living organisms, which serve as vehicles for drug delivery or implants.
Development of nanocontainer technologies for vector drug delivery.
The synthesis of new chemical compounds through the formation of molecules without chemical reactions. In the next years, this will lead to the creation of fundamentally new drugs that synthetics, pharmacists, and doctors will “design” based on a specific disease, and even a specific patient.
Development of self-replicating (self-propagating) systems based on bioanalogs - bacteria, viruses, protozoa.
Creation of accurate medical nanomanipulators and diagnostic devices.
Nanoparticles have such wide applications in microbiology and medicine that you have to decide what type of study you want to do. Some of these NPs are antibacterial, like Ag NPs, some can be used for controlled drug delivery purposes. It might be a good idea that you do a thorough search on this subject to get the required information.