Imaging stability in force-feedback high-speed atomic force microscopy
نویسندگان
چکیده
منابع مشابه
Imaging stability in force-feedback high-speed atomic force microscopy.
We studied the stability of force-feedback high-speed atomic force microscopy (HSAFM) by imaging soft, hard, and biological sample surfaces at various applied forces. The HSAFM images showed sudden topographic variations of streaky fringes with a negative applied force when collected on a soft hydrocarbon film grown on a grating sample, whereas they showed stable topographic features with posit...
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High-speed atomic force microscopy (HSAFM) has enabled researchers to view the nanometer-scale dynamic behavior of individual biological and bio-relevant molecules at a molecular-level resolution under physiologically relevant time scales, which is the realization of a dream in life sciences. These high-speed imaging applications now extend to the cellular/bacterial systems with the use of a sm...
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High-speed atomic force microscopy (HS-AFM) has been developed as a nano-dynamics visualization technique. This microscopy permits direct observation of structure dynamics and dynamic processes of biological molecules in physiological solutions, at a subsecond to sub-100 ms temporal resolution and an ∼2 nm lateral and a 0.1 nm vertical resolution. Importantly, tip-sample interactions do not dis...
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The instrumentation of high-speed imaging has been a challenge for scanning probe-based technologies. Mechanical stability of the system, surface tracking at sharp topographic transitions and prolonging tip lifetime have been the determining factors for practical applications. In this paper we report a new type of feedback control based on the torsional resonance amplitude (TRmode ) of cantilev...
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Many applications in materials science, life science and process control would benefit from atomic force microscopes (AFM) with higher scan speeds. To achieve this, the performance of many of the AFM components has to be increased. In this work, we focus on the cantilever sensor, the scanning unit and the data acquisition. We manufactured 10 microm wide cantilevers which combine high resonance ...
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ژورنال
عنوان ژورنال: Ultramicroscopy
سال: 2013
ISSN: 0304-3991
DOI: 10.1016/j.ultramic.2012.09.012