Conformations of isolated ampholytic dendrimers in solutions

We study the conformations of isolated trifunctional ampholytic dendrimers in solutions. For the previously homo-dendrimer case studied in the literature, we discuss the issues of density profiles, the existence of a cavity, backfolding, bond stretching and scaling laws for the dendrimer size across the good-to-poor solvent transition. We then consider the effect of introducing monomer charges in the outermost generation opposite to those in the interior generations in an electrically neutral overall ampholytic co-dendrimer.