1. Casey Ross Mullikin Graduate Mentor: Brock Schulte Faculty Mentor: Dr. Steve Tung

2. Atomic Force Microscope (AFM) Setup Schematic http://en.wikipedia.org/wiki/File:Atomic_force_microscope_block_diagram.png

3. Equipment AFM Scanner Scanner Nose Cone

4. Si-Pt Conductive Cantilever Tip Cantilever Tip  Cantilever Dimensions 200 μm long 40 μm wide 1 μm thick  Tip Radius 8 nm 100 μm = width of a human hair http://en.wikipedia.org/wiki/File:AFM_(used)_cantilever_in_Scanning_Electron_Microscope,_magnification_1000x.GIF

5. Typical AFM Virus Scan Topographic Scan

6. Virus Topography Average Width 200-400 nm Average Height 10 nm H W

7. Questions