I am writing a thesis and the title goes like this:
"Interaction of Proteins with Small Molecules and Peptides"
I studied the interactions of various different proteins with various different small molecules and peptides. For example I studied the interactions of protein A with small molecule A and small molecule B; and then interactions of protein B with peptide A and small molecule C and so on. Therefore, in the title proteins mean protein in general and small molecules indicate small molecule in general.
So, will it be better if I write:
"Interactions of Protein with Small Molecule and Peptide"
Or should I use all plural:
"Interactions of Proteins with Small Molecules and Peptides"
Does the above mentioned fragment sounds good as a title? Should I use something like "Studies on" on the beginning? Can "Studies on" be implicit?