Solvent?Cast 3D Printing of Biodegradable Polymer Scaffolds

3D printing is a popular fabrication technique because of its ability to produce complex architectures. Melt-based widely used for thermoplastic polymers like poly(caprolactone) (PCL), poly(lactic acid) (PLA), and poly(lactic-co-glycolic (PLGA) their low processing temperatures. However, traditional melt-based techniques require temperatures pressures high enough achieve continuous flow, limiting the type polymer that can be printed. Solvent-cast (SCP) offers an alternative approach print wider range polymers. Polymers are dissolved in volatile solvent evaporates during deposition solid filament. SCP, therefore, requires optimizing concentration ink, pressure, speed desired fidelity. Here, capillary flow analysis shows how pressure affects process-apparent viscosity PCL, PLA, PLGA inks. Ink also measured using rheology, which link specific ink predicted set all three These results demonstrate this accelerate optimization by significantly reducing number parameter combinations. This strategy applied other expand library printable with SCP.