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Control theory for scanning probe microscopy revisited [PDF]

open access: yesBeilstein Journal of Nanotechnology, 2014
We derive a theoretical model for studying SPM feedback in the context of control theory. Previous models presented in the literature that apply standard models for proportional-integral-derivative controllers predict a highly unstable feedback ...
Julian Stirling
doaj   +4 more sources

A Novel 3D Probe for Near-Field Scanning Microwave Microscopy [PDF]

open access: yesSensors
Near-field scanning microwave microscopy (NSMM) offers the ability to probe local electromagnetic properties beyond the classical Abbe diffraction limit, but achieving high resolution over practical scan areas remains challenging.
Ali M. Almuhlafi, Omar M. Ramahi
doaj   +2 more sources

Exploring the Process of Neutrophil Transendothelial Migration Using Scanning Ion-Conductance Microscopy

open access: yesCells, 2023
The dynamics of neutrophil transendothelial migration was investigated in a model of experimental septicopyemia. Scanning ion-conductance microscopy allowed us to determine changes in morphometric characteristics of endothelial cells during this process.
Svetlana N. Pleskova   +4 more
doaj   +1 more source

Differences in bacteria nanomotion profiles and neutrophil nanomotion during phagocytosis

open access: yesFrontiers in Microbiology, 2023
The main goal of this work is to highlight the connection between nanomotion and the metabolic activity of living cells. We therefore monitored the nanomotion of four different clinical strains of bacteria (prokaryotes) and the bacterial phagocytosis by ...
Svetlana Nikolaevna Pleskova   +7 more
doaj   +1 more source

ROS Production by a Single Neutrophil Cell and Neutrophil Population upon Bacterial Stimulation

open access: yesBiomedicines, 2023
The reactive oxygen species (ROS) production by a single neutrophil after stimulation with S. aureus and E. coli was estimated by an electrochemical amperometric method with a high time resolution. This showed significant variability in the response of a
Svetlana N. Pleskova   +7 more
doaj   +1 more source

Staphylococcus aureus Causes the Arrest of Neutrophils in the Bloodstream in a Septicemia Model

open access: yesMicroorganisms, 2022
Staphylococcus aureus induces the expression of VCAM-1, P- and E-selectins on the endothelial cells of the EA.hy926 cell line but, at the same time, causes the significant suppression of the force and work of adhesion between these receptors of ...
Svetlana N. Pleskova   +4 more
doaj   +1 more source

Ultrafast scanning probe microscopy [PDF]

open access: yesApplied Physics Letters, 1993
We have measured the response of the tunneling gap of a scanning tunneling microscope to excitation by a subpicosecond electrical pulse. Combining ultrashort laser pulses techniques with scanning tunneling microscopy (STM), we have obtained simultaneous 2-ps time resolution and 50-Å spatial resolution. This is a 9 orders of magnitude improvement in the
Botkin, D.   +4 more
openaire   +2 more sources

Dark-probe scanning near-field microscopy

open access: yesNew Journal of Physics, 2023
Scanning near-field optical microscopy (SNOM) is a well-known powerful optical technique for visualization of surface nanostructures and fields far beyond the diffraction limit and thus indispensable in material- and nanoscience.
Henrik Parsamyan   +3 more
doaj   +1 more source

Granular Hall Sensors for Scanning Probe Microscopy

open access: yesNanomaterials, 2021
Scanning Hall probe microscopy is attractive for minimally invasive characterization of magnetic thin films and nanostructures by measurement of the emanating magnetic stray field.
Roland Sachser   +3 more
doaj   +1 more source

Probing Italy: A Scanning Probe Microscopy Storyline

open access: yesMicro, 2023
Starting from the late 1980’s, scanning probe microscopy has progressively diffused in Italy until today. In this paper, we provide a brief account of the main historical events and a current picture of the distribution of the active groups. A survey was
Franco Dinelli   +10 more
doaj   +1 more source

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