Consider the following statements regarding nanoparticles and their applications:

1. The ability to create nanoparticles could be useful to the study of proto-cells as microdroplets could mimic proto-cells.

2. Supplying soil with silica nanoparticles could have a positive impact on agriculture.

3. Cordy gold nanoparticles have been shown to improve drug delivery in the human body.

Which of the statements given above are correct?