Shear force imaging of soft samples in liquid using a diving bell concept

Koopman, M. and Bakker de, B.I. and Garcia-Parajo, M.F. and Hulst van, N.F. (2003) Shear force imaging of soft samples in liquid using a diving bell concept. Applied Physics Letters, 83 (24). pp. 5083-5085. ISSN 0003-6951

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Abstract:	We present a reliable and easy-to-use system, with a perfect analogy to a diving bell, to perform tuning fork based shear force microscopy on soft cells in liquid. Using the diving bell concept the tuning fork vibrates in air, while the tip is immersed in solution. In this way Q factors of 200 and higher in liquid are routinely obtained. The force feedback is reliable and stable over hours requiring a minimum adjustment of the set-point during imaging. With this system, tip-sample interaction forces are kept below 350 pN, enabling us to image soft dendritic cells in a buffer solution.
Item Type:	Article
Copyright:	© 2003 American Institute of Physics
Research Group:	Optical Sciences (OS)
Link to this item:	http://purl.utwente.nl/publications/40692
Official URL:	http://dx.doi.org/10.1063/1.1634385
Publisher URL:	http://link.aip.org/link/?APPLAB/83/5083/1
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