title: A rotating bed system bioreactor enables cultivation of primary osteoblasts on well-characterized Sponceram regarding structural and flow properties.
abstract: The development of bone tissue engineering depends on the availability of suitable biomaterials, a well-defined and controlled bioreactor system, and on the use of adequate cells. The biomaterial must fulfill chemical, biological, and mechanical requirements. Besides biocompatibility, the structural and flow characteristics of the biomaterial are of utmost importance for a successful dynamic cultivation of osteoblasts, since fluid percolation within the microstructure must be assured to supply to cells nutrients and waste removal. Therefore, the biomaterial must consist of a three-dimensional structure, exhibit high porosity and present an interconnected porous network. Sponceram, a ZrO(2) based porous ceramic, is characterized in the presented work with regard to its microstructural design. Intrinsic permeability is obtained through a standard Darcy's experiment, while Young's modulus is derived from a two plates stress-strain test in the linear range. Furthermore, the material is applied for the dynamic cultivation of primary osteoblasts in a newly developed rotating bed bioreactor.
authors.affiliation: Institut für Technische Chemie, Leibniz Universität Hannover, Callinstr. 5, 30167 Hannover, Germany.
authors.forename: Kirstin
authors.initials: K
authors.lastname: Suck
authors.forename: Stefanie
authors.initials: S
authors.lastname: Roeker
authors.forename: Solvig
authors.initials: S
authors.lastname: Diederichs
authors.forename: Fabienne
authors.initials: F
authors.lastname: Anton
authors.forename: Jose A
authors.initials: JA
authors.lastname: Sanz-Herrera
authors.forename: Ignacio
authors.initials: I
authors.lastname: Ochoa
authors.forename: Manuel
authors.initials: M
authors.lastname: Doblare
authors.forename: Thomas
authors.initials: T
authors.lastname: Scheper
authors.forename: Martijn
authors.initials: M
authors.lastname: van Griensven
authors.forename: Cornelia
authors.initials: C
authors.lastname: Kasper
mesh_terms: D000328:Adult; D001696:Biomechanical Phenomena; D019149:Bioreactors; D002516:Ceramics; D003094:Collagen / Q000378:metabolism; D055119:Elastic Modulus; D006801:Humans; D008297:Male; D008422:Materials Testing / Q000295:instrumentation* / Q000379:methods; D008855:Microscopy, Electron, Scanning; D010006:Osteoblasts / Q000166:cytology* / Q000378:metabolism; D053495:Osteopontin / Q000378:metabolism; D016062:Porosity; D020133:Reverse Transcriptase Polymerase Chain Reaction; D046509:Tissue Culture Techniques / Q000379:methods; D023822:Tissue Engineering / Q000295:instrumentation / Q000379:methods*; D054457:Tissue Scaffolds / Q000737:chemistry*; D055114:X-Ray Microtomography; D015040:Zirconium
chemical_list: D053495:Osteopontin; D003094:Collagen; D015040:Zirconium; C028541:zirconium oxide