After working very hard on your research, and finally you finished writing your patent, its the time to turn your hard work into reality/production and search for funding.
There are couple of ways to get your project funded, you might consider writing grants for EU programs or many other funding programs that out there, waiting for you to apply.
Writing grants to the EU is very promising, especially for the nanotechnology field, we can hear many new nanotechnology companies that applied to EU programms and got funded for millions of dollars.
However if you will do a good networking job, you can find investors who would like to collaborate with you, by explaining them about your revolutionary nanotechnology application.
You dont have to stick on one approach, if you have the time, you can do it parallelly, thus you will have more open doors and opportunities.