Linked Life Data

19258696

Source:http://linkedlifedata.com/resource/pubmed/id/19258696

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2009-4-7
pubmed:abstractText
Hollow surface-structured silica microspheres, a potential candidate for drug delivery systems, were synthesized using the rape pollen grain as a biotemplate via a facile sol-gel coating followed by a calcination process. Different surface morphologies relating to the controllable release property were also achieved on the as-prepared silica hollow microspheres by changing the ratio of the tetraethyl orthosilicate (TEOS) and water in sols. Differential scanning calorimetry (DSC) and thermogravity (TG), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), as well as Fourier transform infrared spectroscopy (FT-IR) were utilized to characterize the original pollen grain, the silica sols-coated pollen grain and the as-prepared hollow silica microspheres, respectively. Results indicated that the pollen grain would be removed at around 500 degrees C, and the sol coating was kept to form hollow microspheres. Physical adsorption was proved to be the main effect in the sol coating. A speculation on the formation mechanism of different morphologies is also given.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1748-605X
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
025009
pubmed:dateRevised
2010-3-11
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Morphology-controlled synthesis of SiO2 hollow microspheres using pollen grain as a biotemplate.
pubmed:affiliation
College of Materials Science and Engineering, Nanjing University of Technology, Jiangsu Nanjing 210009, People's Republic of China. caofeng.cn@gmail.com
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't