Image of the Month

February 2010

Single 4th generation PAMAM-OH dendrimer

institution

Microscope:
RHK Technology UHV 300 STM – Ambient STM Imaging and Spectroscopy

The image above is a single 4th generation PAMAM-OH dendrimer. The dendrimer was imaged using a novel metal-ion doping procedure as per C.J. Fleming, Y.X. Liu, Z. Deng, G-y Liu*, J Phys Chem A, 2009, 113, 4168-4174.

The image was obtained at a set point of 0.33 V and 20 pA under ambient conditions using RHK hardware and the new XPM Pro software.

Controls:
RHK Technology SPM 1000 Control System

Contributors:
Christopher J. Fleming, Ying X. Liu, Zhao Deng, and Gang-yu Liu – Department of Chemistry, UniVersity of California, DaVis, California

Reference: C.J. Fleming, Y.X. Liu, Z. Deng, G-y Liu*, J Phys Chem A, 2009, 113, 4168-4174