3D Bioplotter Research Papers

Displaying all papers about PDMS (3 results)

Defect-engineered reduced graphene oxide sheets with high electric conductivity and controlled thermal conductivity for soft and flexible wearable thermoelectric generators

Nano Energy 2018 Volume 54, Pages 163-174

The direct use of graphene for potential thermoelectric material requires the opening of its bandgap without loss of its high electric conductivity. We herein demonstrate a synchronous reduction and assembly strategy to fabricate large-area reduced graphene oxide films with high electric conductivity and optimized low thermal conductivity assembly. The reduced graphene oxide films have a high electric conductivity and low thermal conductivity, which results from high longitudinal carrier mobility of the lattice domains as well as the enhanced scattering of phonons in the defects and their boundary that substantially reduces the mean phonon free path and the thermal conductivity. Flexible…

3D Micropatterned all Flexible Microfluidic Platform for Microwave Assisted Flow Organic Synthesis (MAFOS)

ChemPlusChem 2017 Volume 83, Issue 1, Pages 42-46

In present work, we fabricate large area, all flexible and microwaveable PDMS microfluidic reactor that is printed via 3D bioplotter system. The sacrificial microchannels are printed on Polydimethoxylane (PDMS) substrates by direct ink writing method using water soluble Pluronic F-127 ink and encapsulated between PDMS layers. The structure of micrometer sized channels is analyzed by optical and electron microscopy techniques. The fabricated flexible microfluidic reactors are utilized for acetylation of different amines under microwave irradiation to get acetylamides in shorter reaction time and good yields in Microwave Assisted Flow Organic Synthesis (MAFOS).

Characterization of Mechanical Properties of Tissue Scaffolds by Phase Contrast Imaging and Finite Element Modeling

Journal of Biomechanical Engineering 2015 Volume 137, Issue 8, Article 081004

In tissue engineering, the cell and scaffold approach has shown promise as a treatment to regenerate diseased and/or damaged tissue. In this treatment, an artificial construct (scaffold) is seeded with cells, which organize and proliferate into new tissue. The scaffold itself biodegrades with time, leaving behind only newly formed tissue. The degradation qualities of the scaffold are critical during the treatment period, since the change in the mechanical properties of the scaffold with time can influence cell behavior. To observe in time the scaffold’s mechanical properties, a straightforward method is to deform the scaffold and then characterize scaffold deflection accordingly….

PDMS Imaging