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Nanosensors
book

Nanosensors

by Vinod Kumar Khanna
April 2016
Intermediate to advanced content levelIntermediate to advanced
666 pages
22h 57m
English
CRC Press
Content preview from Nanosensors
76 Nanosensors: Physical, Chemical, and Biological
uid layer; and (iii) usually only applicable in extremely hydrophobic (repel-
ling, tending not to combine with, or incapable of dissolving in water) sam-
ples with a minimal uid layer.
1.20.6.3  Tapping Mode (Intermittent-Contact Mode)
In tapping-mode AFM the cantilever is oscillating close to its resonance fre-
quency. An electronic feedback loop ensures that the oscillation amplitude
remains constant, such that a constant tip–sample interaction is maintained
during scanning. Forces that act between the sample and the tip will not
only cause a change in the oscillation amplitude, but also a change in the
resonant frequency (natural frequency of vibration determined by the phys-
ical parameters ...
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Publisher Resources

ISBN: 9781439827130