Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
Pt 1
pubmed:dateCreated
1999-11-22
pubmed:abstractText
From both simple estimates and a 'blind' reconstruction based on cryo-AFM images of filamentous actin, we find that the radius of curvature at the apex of Si3N4 tips can be as small as 1 nm with a conical angle in the range 30 approximately 40 degrees, revealing a relatively high aspect ratio that is much greater than previously anticipated. Our results show that commercially available cantilevers are often sharp enough for routine high resolution imaging of biological materials, and suggest that factors other than an inherent blunt tip are probably responsible for frequent occurrences of poor resolution.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0022-2720
pubmed:author
pubmed:issnType
Print
pubmed:volume
196
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1-5
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
AFM tips: how sharp are they?
pubmed:affiliation
Departments of Molecular Physiology and Biological Physics, and Physics, University of Virginia School of Medicine, Box 449, Health Sciences Center, Charlottesville, VA 22908, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.