Picco, L. M. and Bozec, L and Ulcinas, A and Engledew, D. J. and Antognozzi, M and Horton, M. A. and Miles, M. J. (2007) Breaking the speed limit with atomic force microscopy. Nanotechnology, 18 (4). 044030 (4pp).
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Official URL: http://stacks.iop.org/0957-4484/18/044030
High-speed atomic force microscopy (AFM) is important for following processes that occur on sub-second timescales for studies both in biology and materials science, and also for the ability to examine large areas of a specimen at high resolution in a practical length of time. Further developments of the previously reported high-speed contact-mode AFM are described. Two instruments are presented: (i)~a high-speed flexure stage arrangement capable of imaging at a video rate of 30~fps, and (ii) an ultra-high speed instrument using a combined tuning fork and flexure-stage scanning system capable of ultra-high-speed imaging in excess of 1000~fps. Results of imaging collagen fibres under ambient conditions at rates of up to 1300~frames~s[?]1 are presented. Despite tip-specimen relative velocities of up to 200~mm~s[?]1, no significant damage to the collagen specimen was observed even after tens of thousands of frames were acquired in the same area of the specimen.
|Subjects:||Analytical Science > Microscopy and probe methods|
|Deposited By:||Lesley Tobin|
|Deposited On:||27 Nov 2008 16:53|
|Last Modified:||25 Feb 2009 11:28|
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