Research, the technology leader in scanning probe/atomic force microscopy
(SPM/AFM), is initiating its 2012 Webinar Series on February 22. The first
webinar will focus on ultra-high resolution imaging. AFM pioneer, inventor and
Asylum Research co-founder, Dr. Jason Cleveland, will present "Smaller and
Quieter: Ultra-high Resolution AFM Imaging."
Bacteriorhodopsin imaged with the Cypher AFM in AC mode using a short cantilever. In the original AFM image (top) missing sub-units are easily resolved (white circle) and its power spectrum shows spots outside of the 10 Angstrom circle, demonstrating sub-nanometer resolution. The lower right image is a correlation average of the original image.
Miniaturization of cantilevers for Atomic Force Microscopy has increased
their resonant frequencies and decreased their thermal noise, allowing faster,
lower noise measurements. When used in the extremely low noise Cypher AFM, these
levers have enabled significant improvements in imaging resolution in air and
especially in liquids. On crystals, individual atomic point defects can now be
routinely resolved, and this higher resolution also extends to biological
samples. Examples to be shown include the movement of individual point defects
in bacteriorhodopsin, atomic point defects in calcite, and resolution of the
double-helix structure of DNA in solution.
"Recent advances in cantilever and AFM system design have enabled imaging and
measurements that were previously not possible. I'll talk about these advances
and show some of our latest achievements and capabilities, which I think will be
of substantial interest to the full spectrum of AFM users, from beginners to the
most experienced," said Dr. Cleveland.
To register, please go to
www3.gotomeeting.com/register/982536366. Attendance will be
limited, so early registration is recommended.
Additional Asylum Research Webinars in the coming months will include topics
such as fast imaging and nanomechanical analysis tools.