I recently did a lab report on ferrofluid for chemistry and am having difficulty with some questions. I was wondering if I could get some help. *Are there advantages to an oil-based ferrofluid compared to an aqueous ferrofluid? *Researchers have explored ways to attach medications to ferrofluid to deliver drugs to specific locations in the body. Explain how this would work. What are some considerations that need to be made in order to undergo these types of treatments? *If the diameter of the average ferrofluid nanoparticle is 100 nm, how many times larger is an iron filing. Include the assumptions that you use in your answer. Many thanks to whoever can help me out.