Linked Life Data

19603639

Source:http://linkedlifedata.com/resource/pubmed/id/19603639

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2009-7-16
pubmed:abstractText
Pollen is a leading contributor to asthma and allergies, yet pollen adhesion to common indoor surfaces is not well understood. We report the adhesive behavior of short ragweed (A. artemisiifolia) pollen grains with Nylon 6 (N6) and Nylon 6,6 (N66), chosen due to their use in synthetic carpet, and three control surfaces: polyamide 12 (PA12), polystyrene (PS), and silicon. The forces were measured by using atomic force microscopy (AFM) under controlled humidity, where single pollen grains were attached to tipless AFM cantilevers. Pollen grains had an average adhesion of 10 +/- 3 nN with the surfaces, independent of surface type or relative humidity from 20% to 60%. van der Waals forces are the primary molecular attraction driving pollen adhesion to these surfaces. The results also indicate that ragweed pollen contacts the polymer surface via its exine surface spikes, and the total adhesion force scales with the number of contacts. The pollen surface spikes are strong, resisting fracture and compliance up to a load of 0.5 GPa.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0013-936X
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
43
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4308-13
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Characterization of ragweed pollen adhesion to polyamides and polystyrene using atomic force microscopy.
pubmed:affiliation
School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, Georgia 30332-0100, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't