Hundreds of papers are being published every year on antibacterial, antifungal, anticancer, antidiabetic, antileishmanial and cytotoxic potential of various nanoparticles both in-vitro and in-vivo. Therefore it is about time Pharmacy focus on nanoparticles as alternative to conventional medicines.
No. Nanotechnology is a vast domain having applications in all major research areas be it biotech, chemistry, physics, computer science, electronics etc.
As for drug production, yes Biotechnologists are working on principles of nanotechnology but so are pharmacologists. You cannot tie nanotechnology to a single discipline.