Figure 2 (IMAGE) Shinshu University Caption TOP IMAGE: PECTIN. BOTTOM IMAGE: Polystyrene particles (AVERAGE SIZE: 100 nm) Credit CREDIT: HIROSHI MORIWAKI, SHINSHU UNIVERSITY Usage Restrictions Credit must be given to the creator. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.