Dictionary » S » Scanning probe microscopy

Scanning probe microscopy

Scanning Probe Microscopy

(Science: technique) Initially called atomic force microscopy, this technique is now more typically termed scanning Force Microscopy or scanning Probe Microscopy.

This instrument is essentially an extremely high resolution profilometre. A sharp tip, typically fabricated from silicon nitride, is scanned across the surface of a sample at a constant force by three piezoelectric ceramics.

The piezoelectric ceramics are computer controlled via a feedback loop which monitors the position of the tip by means of an optical lever. (A laser is focused on the top of the tip support and the beam reflected into a position sensitive detector). The changes in height of the tip are used to form an image as the tip is scanned across the sample.

Acronym: SPM


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


The Fiber Disease

... (NTI) derivatives were synthesized as probes for the affinity isolation of their binding ... was investigated. Transmission electron microscopy (TEM) images demonstrate that these nanoparticles ... characterized by enzyme activity measurements, scanning electron microscopy (SEM), light scattering, ...

See entire post
by Nadas Moksha
Wed Dec 20, 2006 8:01 pm
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5563212

The Fiber Disease

... a novel ion-plasma method, which allows us to probe ion energy depositions in the 0.1-100 eV/nm ... dynamic light scattering, differential scanning calorimetry, and Raman spectra, respectively. ... while simultaneously using atomic force microscopy to image the intermediate collagen structures. ...

See entire post
by Nadas Moksha
Sun Dec 10, 2006 11:03 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5563212

The Fiber Disease

... piezoelectric driver designed for scanning probe microscopy, the distance between the micropipette point and the polymer ...

See entire post
by London
Sun Dec 10, 2006 10:04 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5563212

The Fiber Disease

... Scanning electrochemical microscopy (SECM) was used to image spatial variations in ... to an interface with submicron precision, and can probe the topography, reactivity, or permeability of that ...

See entire post
by Nadas Moksha
Wed Dec 06, 2006 5:20 pm
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5563212


This page was last modified 21:16, 3 October 2005. This page has been accessed 1,426 times. 
What links here | Related changes | Permanent link