Linked Life Data

18629408

Source:http://linkedlifedata.com/resource/pubmed/id/18629408

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
29
pubmed:dateCreated
2008-7-16
pubmed:abstractText
Biomimetic synthesis is emerging as an advantageous alternative to the harsh synthetic conditions traditionally used in metal oxide syntheses techniques. Silaffins, proteins from the C. fusiformis diatom, form silica in an aqueous environment under benign conditions. Amine terminated PAMAM and PPI dendrimers are effective mimics of silaffins and other silica precipitating polyamines. We have expanded the scope of dendrimer mediated metal oxide formation to include titanium dioxide, a photocatalyst, and germanium dioxide, a blue photoluminescent material. The nanoparticles were characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (IR), and X-ray diffraction patterns (XRD). A variable temperature XRD analysis of TiO(2) nanoparticles was conducted to study the transition from anatase to rutile. TiO(2) nanoparticles synthesized in phosphate buffer showed a 200 degrees C decrease in the anatase to rutile transition temperature relative to TiO(2) templated in water. XRD analysis of GeO(2) nanoparticles in either water or phosphate buffer reveal crystalline alpha-phase germanium oxide. To our knowledge, this is the first report of the synthesis of crystalline GeO(2) under ambient conditions.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1477-9226
pubmed:author
pubmed:issnType
Print
pubmed:day
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3857-65
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Versatile biomimetic dendrimer templates used in the formation of TiO2 and GeO2.
pubmed:affiliation
Department of Biomedical Engineering, Vanderbilt Univeristy, Station B Box 351620, Nashville, TN 37235, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S.