title: Designing porosity and topography of poly(1,3-trimethylene carbonate) scaffolds.
abstract: Using phase separation micromolding (PSmicroM) we developed porous micro-patterned sheets from amorphous poly(1,3-trimethylene carbonate) (PTMC). The use of these PTMC sheets can be advantageous in tissue engineering applications requiring highly flexible constructs. Addition of poly(ethylene oxide) (PEO) in various amounts to PTMC casting solutions provides PTMC sheets with tailored porosity and pore sizes in the range 2-20 microm. The pore-forming effect of PEO during the phase separation process is evaluated and glucose transport measurements show that the pores are highly interconnected. Additionally, tailoring the micro-pattern design yields PTMC sheets with various surface topographies. Cell culturing experiments with C2C12 pre-myoblasts revealed that cell attachment and proliferation on these sheets is relatively high and that the micro-pattern topography induces a clearly defined cell organization.
authors.affiliation: Membrane Science and Technology, Faculty of Science and Technology, Institute for Biomedical Technology, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands.
authors.forename: Bernke J
authors.initials: BJ
authors.lastname: Papenburg
authors.forename: Sigrid
authors.initials: S
authors.lastname: Schüller-Ravoo
authors.forename: Lydia A M
authors.initials: LA
authors.lastname: Bolhuis-Versteeg
authors.forename: Liesbeth
authors.initials: L
authors.lastname: Hartsuiker
authors.forename: Dirk W
authors.initials: DW
authors.lastname: Grijpma
authors.forename: Jan
authors.initials: J
authors.lastname: Feijen
authors.forename: Matthias
authors.initials: M
authors.lastname: Wessling
authors.forename: Dimitrios
authors.initials: D
authors.lastname: Stamatialis
mesh_terms: D000818:Animals; D001672:Biocompatible Materials / Q000737:chemistry*; D049109:Cell Proliferation; D002478:Cells, Cultured; D004146:Dioxanes / Q000737:chemistry*; D008422:Materials Testing; D051379:Mice; D032446:Myoblasts / Q000166:cytology / Q000502:physiology; D019906:Nuclear Magnetic Resonance, Biomolecular; D011092:Polyethylene Glycols / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D016062:Porosity; D013499:Surface Properties; D023822:Tissue Engineering / Q000379:methods; D054457:Tissue Scaffolds / Q000737:chemistry*
chemical_list: D001672:Biocompatible Materials; D004146:Dioxanes; D011108:Polymers; D011092:Polyethylene Glycols; C443643:trimethylene carbonate