Hello, I am trying to power this device that travels in the bloodstream. Essentially, it is going to attach itself to tumor cells in the blood. I want it to circulate in the blood; however, I'm not sure how I can make it move. In which way would this device be able to move? I attached an image of it below.

By a little wind push

Explanation:

Maybe you can put a little wind bag or mini jet and let that go off with a button and it'll go slowly down the stream.

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.