https://phys.org/news/2019-01-gain-soft-molecule-synthesis.html

The findings are reported in the Proceedings of the National Academy of Science.

For years, scientists have struggled to clarify how nanoparticle shape and size influence their behavior within living tissue, the researchers said. "The size of the synthetic molecules we are creating correspond to the size of viruses," said Dylan Walsh, a chemical and biomolecular engineering graduate student and study co-author. "Observations made from controlling these factors will allow researchers to probe these types of questions."