Research Article

High-Resolution Imaging of Dendrimers Used in Drug Delivery via Scanning Probe Microscopy

Scheme 3

Method of measuring the volume of PAMAM dendrimers using STM and AFM. The and lateral dimensions of single dendrimers are obtained through STM topographs (a). The removal of surface adsorbates under high force (b) allows for AFM height measurements during subsequent scans under normal imaging load (c).
254095.sch.003