We are developing superparamagnetic nanoparticles and do collaborate with different research groups world wide for various characterization. However, such collaboration depends on what the other group can do and how they share data. Further, a collaborative research of this nature can not be discussed in a public forum like the ResearchGate and must be discussed only in private.
that now synthesis of nanoparticles is not a big deal. large number of methods are available in the literature to synthesize nanoparticles of various shape, size and functionality. For the charecterisations of your particles if you need any kind of help/or collaborations, you are most welcome.