Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2009-10-23
pubmed:abstractText
This paper describes a novel approach to prepare and characterize calcium-shellac spheres as a carrier of a tooth whitening agent carbamide peroxide. Calcium-shellac spheres were prepared using an extrusion technique based on dropping aqueous ammonium shellac solution into calcium chloride solution. The effects of formulation and processing conditions on the encapsulation efficiency of carbamide peroxide, physical and mechanical properties of the formed calcium-shellac spheres were investigated. The inner structure of the spheres was characterized using X-ray micro-computed tomography and their mechanical strength was determined using a Lloyds Material Testing Machine. Possible reactions between ammonium shellac and calcium chloride and carbamide peroxide, respectively, have been proposed based on experimental measurements using Fourier Transform Infrared Spectroscopy (FTIR).
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1464-5246
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
523-30
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Preparation and characterization of calcium-shellac spheres as a carrier of carbamide peroxide.
pubmed:affiliation
Centre for Formulation Engineering, Department of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't