Journal
NANOTECHNOLOGY
Volume 18, Issue 4, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/18/4/044030
Keywords
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Funding
- Engineering and Physical Sciences Research Council [GR/T03727/01, GR/R45680/01] Funding Source: researchfish
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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.
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