Preparation and characterization of tips for scanning tunneling microscopy of 
biological specimens

Hacker, B.; Hillebrand, A.; Hartmann, T.; Guckenberger, R.

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Preparation and characterization of tips for scanning tunneling microscopy of biological specimens

MPS-Authors

There are no MPG-Authors in the publication available

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Hacker, B., Hillebrand, A., Hartmann, T., & Guckenberger, R. (1992). Preparation and characterization of tips for scanning tunneling microscopy of biological specimens. Ultramicroscopy, 42(44), 1514-1518.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0010-7405-2

Abstract

For scanning tunneling microscopy of biological samples a thin, sharp tip is necessary to resolve the highly corrugated structures of biomacromolecules. By DC etching of tungsten wire in NaOH the authors obtain tip radii of 5 nm or less in more than 50% of all cases. For tunneling in fluids these tips are insulated by a wax-coating to minimize faradaic currents. Resulting leakage currents are in the range of 5 to 50 pA. (6 References).