Penn Regional Nanotechnology Facility

	General Information

	Electron Microscopy

	Focused Ion Beam

	Atomic Force Microscopy

	Ion Scattering

	Applications
	• General Morphology • Structural Studies • Compositional Analysis • Surface Studies • Nanofabrication

	Reservations

	Instrument Rates

Surface Studies - Atomic Force Microscopy

Tapping Mode AFM Image Using a Fluid Cell

Fluid tapping mode AFM allows real time three dimensional imaging of biological systems in liquid environments. This 10um x 10um area shows domains in a Langmuir Blogett (LB) film. The smallest domain size is ~40nm. This image was collected under a physiological buffer solution using the Dimension 3000 in Fluid Tapping mode AFM. The right image is the surface topography and the left image is the simultaneous phase contrast image.

PENN Regional Nanotechnology Facility
University of Pennsylvania / 3231 Walnut Street / Philadelphia PA 19104 / prnf@seas.upenn.edu / 215.898.8718