This instrument is supervised by: Peter Eaton; Please contact Peter for any enquiries regarding access to the lab, or training or use of the instruments. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Long Beach AFM Computer WorkstationLong Beach AFM Head

Instrument #1: Long Beach

This instrument is a modified TT-AFM from AFM Workshop.

It is equipped with two scanners, enabling large (low resolution ) or small (high resolution) scanners. It has an experimental liquid cell for in-situ measurements.

Here are more detailed specifications:

  • Instrument Configuration: Optical lever - based sample-scanning AFM
  • Sample Size: Maxmium ca. 20x20x5 mm
  • Imaging Modes: vibrating (tapping), non-vibrating (contact), phase imaging, lateral force microscopy (friction force microscopy)*
  • Imaging Environment: Air or Liquid* (experimental).
  • Z-translation: Vertical direct drive (1micron resolution)
  • XY Translation: Manual
  • Video Optical Microscope: Zoom to 400X, 3 micron resolution (3M pixel camera)
  • Scan Range: 70x70x17 microns or 20x20x7 microns
  • Linearisation: All axes (x, y and z) with strain guages, can be turned off for enhanced signal to noise ratio.
  • Z noise level: less than 0.2 Angstrom
  • Vibration isolation: Passive vibration isolation, with acoustic shielding

*These features are not yet tested.

Instrument #2: San Diego

This is a Life Sciences AFM (model B) from AFM Workshop. It is a probe-scanning AFM with maximum 50 micron scan range. it is mounted on an inverted optical microscope, equipped for brightfield, phase, and fluorescence microscopy. We have both air and liquid scanning-capable probe holders. It is typically used for cell studies and other transparent samples.



Booking Schedules and Calendars:

TT-AFM - Long Beach

 

 

LS-AFM -San Diego



Example Images
Here are just a few example images measured with the TT-AFM instrument on a variety of samples.

More images can be found in the LS-AFM image gallery and the TT-AFM image gallery.

phase image of ecoli many bacteria amplitude e. coli
Grid spores in phase cells and spore
leishmania cell epithelial cell  



TT-AFM Protocols



Troubleshooting

There is a Google Docs file I have created which contains the solutions to some problems that might crop up using the TT-AFM. This could also apply to other TT-AFM instruments. You can reach it (for viewing) via this link: TT-AFM troubleshooting. If you have something to add to the document, and wish to contribute, just email me (This email address is being protected from spambots. You need JavaScript enabled to view it.) for access.

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