Linked Life Data

15518390

Source:http://linkedlifedata.com/resource/pubmed/id/15518390

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2004-11-2
pubmed:abstractText
The immobilization of DNA on the self-assembled monolayer of 3-aminopropyltrimethoxysilane (APTES) on mica wafer functionalized with glutaraldehyde (GA) by chemical bonding was studied by atomic force microscopy (AFM). The DNA used for our investigation was amplified by polymerase chain reaction, and primers were labeled with a -NH2 group at their 5' terminus. The surfaces were analyzed by X-ray photoelectron spectroscopy (XPS) and AFM. Results from XPS and AFM showed that the mica with the APTES and activated with GA can be formed, and the flatness of the mica can be adapted for AFM images. We found that the modified surface was capable of binding DNA molecules so that it withstood a thorough rinsing with a solution of sodium dodecylsulfate. Covalent binding between the aldehyde-terminated membrane and -NH2 groups at both ends of double-stranded DNA resulted in immobilization and straightening of the DNA.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1533-4880
pubmed:author
pubmed:issnType
Print
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
580-4
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Covalent immobilization of DNA onto functionalized mica for atomic force microscopy.
pubmed:affiliation
Key Laboratory for Molecular and Bio-molecular Electronics of Ministry of Education, Nanjing, 210096, China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't