@phdthesis{Baumann2018, author = {Baumann, Katrin}, title = {Strukturierungsmethoden f{\"u}r Seidenfibroin-Scaffolds}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-159508}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2018}, abstract = {Seidenfibroin findet haupts{\"a}chlich als Zelltr{\"a}germatrix im Bereich Tissue engineering Anwendung. In Kombination mit verschiedenen Calciumphosphatphasen kann es als Material zur Knochenregeneration verwendet werden. In dieser Arbeit stelle ich mineralisierte Seidenfibroin-Scaffolds mit kontrollierter Makroporosit{\"a}t vor. Im Vergleich zu anderen Studien lag das Ziel auf der simultanen Gelierung und Mineralisation von Seidenfibroin-Scaffolds durch Einlegen von gefrorenen Seidenfibroin Monolithen in anges{\"a}uerte Calciumphophosphat L{\"o}sung, was zu einer Pr{\"a}zipitation von Monocalciumphosphat in der Seidenfibroinmatrix f{\"u}hrt. Im zweiten Teil wurde eine Umsetzung von eingearbeiteten ß-Tricalciumphosphat-Partikeln erreicht. Des weiteren f{\"u}hrte ein kontrollierter Cryostrukturierungsprozess von Seidenfibroin-Scaffolds zu parallel ausgerichteten Poren mit Durchmesser zwischen 30 und 50 µm.}, subject = {Seidenfibroin}, language = {de} } @article{RoedelBaumannGrolletal.2018, author = {R{\"o}del, Michaela and Baumann, Katrin and Groll, J{\"u}rgen and Gbureck, Uwe}, title = {Simultaneous structuring and mineralization of silk fibroin scaffolds}, series = {Journal of Tissue Engineering}, volume = {9}, journal = {Journal of Tissue Engineering}, doi = {10.1177/2041731418788509}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-226427}, pages = {1-16}, year = {2018}, abstract = {Silk fibroin is commonly used as scaffold material for tissue engineering applications. In combination with a mineralization with different calcium phosphate phases, it can also be applied as material for bone regeneration. Here, we present a study which was performed to produce mineralized silk fibroin scaffolds with controlled macroporosity. In contrast to former studies, our approach focused on a simultaneous gelation and mineralization of silk fibroin by immersion of frozen silk fibroin monoliths in acidic calcium phosphate solutions. This was achieved by thawing frozen silk fibroin monoliths in acidic calcium phosphate solution, leading to the precipitation of monocalcium phosphate within the silk fibroin matrix. In the second approach, a conversion of incorporated -tricalcium phosphate particles into brushite was successfully achieved. Furthermore, a controlled cryostructuring process of silk fibroin scaffolds was carried out leading to the formation of parallel-oriented pores with diameters of 30-50 mu m.}, language = {en} }