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New Insights into Nanoscale Surface Properties Through PeakForce Tapping and Ringing Mode

Part 1: Improving & Extending the Capabilities of PeakForce Tapping

Presented by Bede Pittinger, Ph.D., Senior Development Applications Specialist, Bruker Nano, Inc.(August 05, 2021)

PRESENTATION HIGHLIGHTS

  • [00:00:54]  Introduction to PeakForce Tapping
  • [00:05:30] Optimized probes and calibration for improved accuracy & repeatability
  • [00:11:15] Easier access to raw data-cubes for smarter analysis of mechanical response
  • [00:15:28]  Investigating the non-contact part of the force curves
  • [00:18:10] New insights into pull-off and localized binding with Ringing Mode
  • [00:28:52] Improved control & more data points with NanoScope 6 controller

 

Part 2: Physical Properties of Materials Using AFM Ringing Mode

Presented by Igor Sokolov, Ph.D., Professor of Mechanical Engineering, Tufts University, Chief Technical Officer, Nanoscience Solutions Inc. (August 05, 2021)

PRESENTATION HIGHLIGHTS

  • [00:02:22] Ringing Mode vs. sub-resonance tapping (PeakForce QNM) and other modes
  • [00:04:10] Restored/averaged adhesion channel
  • [00:06:58] Pull-off neck height and disconnection distance channels
  • [00:10:23] Other height channels (adhesion height, disconnection height, zero-force height)
  • [00:12:17] Disconnection energy loss channel
  • [00:13:25] Dynamic creep phase shift channel
  • [00:13:57] Advantages of Ringing Mode
  • [00:16:40] Ringing Mode example data
  • [00:18:57] Applications of Ringing Mode

Live Q&A with Session Speakers

(August 05, 2021)

PRESENTATION HIGHLIGHTS

  • [00:00:23] How is it possible to calibrate the sensitivity of a triangular ultrasharp tip?
  • [00:02:57] Can you already process this data offline and get the same channels as Ringing Mode?
  • [00:04:10] Can you elaborate on what neck height means in terms of structure for cell/biological studies?
  • [00:05:48] What probes are used for Ringing Mode in air? Is there any difference in the probes you would use for liquid operation?
  • [00:08:15] What samples work best with Ringing Mode? Are there any samples where Ringing Mode does not work well?

 


Learn more about PeakForce Tapping, Ringing Mode, or any of Bruker's other AFM modes or solutions.