title: Adipose Stem Cell Coating of Biomimetic β-TCP Macrospheres by Use of Laboratory Centrifuge.
abstract: Biomimetic materials such as coral exoskeletons possess unique architectural structures with a uniform and interconnected porous network that can be beneficial as a scaffold material. In addition, these marine structures can be hydrothermally converted to calcium phosphates, while retaining the original structural properties. The ability of biomaterials to stimulate the local microenvironment is one of the main focuses in tissue engineering, and directly coating the scaffold with stem cells facilitates future potential applications in therapeutics and regenerative medicine. In this article we describe a new and simple method that uses a laboratory centrifuge to coat hydrothermally derived beta-tricalcium phosphate macrospheres from coral exoskeleton with stem cells. In this research the optimal seeding duration and speed were determined to be 1 min and 700 g. Scanning electron micrographs showed complete surface coverage by stem cells within 7 days of seeding. This study constitutes an important step toward achieving functional tissue-engineered implants by increasing our understanding of the influence of dynamic parameters on the efficiency and distribution of stem cell attachment to biomimetic materials and how stem cells interact with biomimetic materials.
authors.affiliation: Advanced Tissue Regeneration and Drug Delivery Group, School of Medical and Molecular Biosciences, University of Technology Sydney , Sydney, Australia .
authors.forename: Joshua
authors.initials: J
authors.lastname: Chou
authors.forename: David W
authors.initials: DW
authors.lastname: Green
authors.forename: Krishneel
authors.initials: K
authors.lastname: Singh
authors.forename: Jia
authors.initials: J
authors.lastname: Hao
authors.forename: Besim
authors.initials: B
authors.lastname: Ben-Nissan
authors.forename: Bruce
authors.initials: B
authors.lastname: Milthorpe
keywords: adipose-derived stem cells; biomimetic scaffolds; cell seeding; scaffold coating; stem cell coating