News From the Field
Not-So-Precious: Stripping Gold From AFM Probes Allows Better Measurement of Picoscale Forces
June 27, 2012
This material is available primarily for archival purposes. Telephone numbers or other contact information may be out of date; please see current contact information at media contacts.Gold is not necessarily precious--at least not as a coating on atomic force microscope (AFM) probes. JILA researchers found that removing an AFM probe's gold coating--until now considered helpful--greatly improved force measurements performed in a liquid, the medium favored for biophysical studies such as stretching DNA or unfolding proteins.Full Story
National Institute of Standards and Technology
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