Topographical changes in high-protein milk powders as a function of moisture sorption using amplitude-modulation atomic force microscopy.

2022 ◽  
pp. 107504
Author(s):  
Vinay S.N. Mishra ◽  
Tomasz J. Ochalski ◽  
Noel McCarthy ◽  
André Brodkorb ◽  
Brian J. Rodriguez ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Amplitude Modulation ◽  
Moisture Sorption ◽  
High Protein ◽  
Force Microscopy ◽  
Atomic Force ◽  
Protein Milk

Visualization of molecular binding sites at the nanoscale in the lift-up mode by amplitude-modulation atomic force microscopy

Nanoscale ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 4213-4220
Author(s):  
Tatsuhiro Maekawa ◽  
Takashi Nyu ◽  
Evan Angelo Quimada Mondarte ◽  
Hiroyuki Tahara ◽  
Kasinan Suthiwanich ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Molecular Recognition ◽  
Amplitude Modulation ◽  
Binding Sites ◽  
Local Distribution ◽  
New Approach ◽  
Molecular Binding ◽  
Force Microscopy ◽  
Atomic Force ◽  
Recognition Sites

We report a new approach to visualize the local distribution of molecular recognition sites with nanoscale resolution by amplitude-modulation atomic force microscopy.

Probing the Adsorption of Weak Acids on Graphite Using Amplitude Modulation–Frequency Modulation Atomic Force Microscopy

Langmuir ◽  
2015 ◽  
Vol 31 (10) ◽  
pp. 3069-3075 ◽  
Author(s):  
Ahmed M. A. Moustafa ◽  
Jun Huang ◽  
Kerry N. McPhedran ◽  
Hongbo Zeng ◽  
Mohamed Gamal El-Din
Keyword(s):  
Atomic Force Microscopy ◽  
Amplitude Modulation ◽  
Frequency Modulation ◽  
Modulation Frequency ◽  
Weak Acids ◽  
Force Microscopy ◽  
Atomic Force

scholarly journals Three-dimensional hydration layer mapping on the (10.4) surface of calcite using amplitude modulation atomic force microscopy

2014 ◽  
Vol 25 (33) ◽  
pp. 335703 ◽  
Author(s):  
Christoph Marutschke ◽  
Deron Walters ◽  
Jason Cleveland ◽  
Ilka Hermes ◽  
Ralf Bechstein ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Amplitude Modulation ◽  
Three Dimensional ◽  
Hydration Layer ◽  
Force Microscopy ◽  
Atomic Force

scholarly journals Drive-amplitude-modulation atomic force microscopy: From vacuum to liquids

2012 ◽  
Vol 3 ◽  
pp. 336-344 ◽  
Author(s):  
Miriam Jaafar ◽  
David Martínez-Martín ◽  
Mariano Cuenca ◽  
John Melcher ◽  
Arvind Raman ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Amplitude Modulation ◽  
Frequency Modulation ◽  
Driving Force ◽  
Oscillation Amplitude ◽  
Dynamic Mode ◽  
Force Microscopy ◽  
Atomic Force ◽  
Modulation Mode ◽  
Feedback Scheme

We introduce drive-amplitude-modulation atomic force microscopy as a dynamic mode with outstanding performance in all environments from vacuum to liquids. As with frequency modulation, the new mode follows a feedback scheme with two nested loops: The first keeps the cantilever oscillation amplitude constant by regulating the driving force, and the second uses the driving force as the feedback variable for topography. Additionally, a phase-locked loop can be used as a parallel feedback allowing separation of the conservative and nonconservative interactions. We describe the basis of this mode and present some examples of its performance in three different environments. Drive-amplutide modulation is a very stable, intuitive and easy to use mode that is free of the feedback instability associated with the noncontact-to-contact transition that occurs in the frequency-modulation mode.

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