Direct ink writing of polycaprolactone / polyethylene oxide based 3D constructs

There has been increasing interest over recent years in the application of three-dimensional (3D) printing technologies biomedical field. One such method is Direct Ink Writing (DIW); this approach potential advantage allowing room-temperature deposition materials, presented as an ink, to build complex architectures. DIW offers ability process biomaterials containing temperature-sensitive components. Due fabrication principles DIW, there are specific rheological requirements that ink must exhibit for 3D construction. For reason, hydrogel-based liquid feed stocks have focal point development. As a consequence, studies based on inks comprising hydrophobic biomaterials, which insoluble water and hence unsuited hydrogel approach, limited. In study, we investigate novel utilize polycaprolactone (PCL), polymer, primary constituent by dissolving polymer solvent systems dichloromethane (DCM) acetone (ACE). Moreover, polyethylene oxide (PEO) was incorporated into PCL order extend range hydrophilicity systems. The properties were investigated function composition system. Woodpile constructs PCL/PEO fabricated using assessed series material characterisation. type system had noticeable impact rheology, ultimately affected surface properties. incorporation PEO particularly enhanced roughness wettability constructs. Our results support use new means polymers applications. • Novel PCL-based formulated printing. rheology shape fidelity printed investigated. Incorporation