In our 2021 paper published in Additive Manufacturing, we report fabrication of conductive epoxy-nanoclay-CNT nanocomposite structures by direct-write 3D printing. In this process, 3D-printable composite inks were synthesized by incorporation of nanoclay and different concentrations of CNTs – 0.25, 0.5, and 1 vol%, 0.43, 0.86, and 1.7 wt% – in epoxy. CNTs were found to significantly improve the electrical and mechanical properties. Rheological characterization of the inks revealed a shear-thinning behavior for all the nanocomposite inks and an increase in the complex viscosity, storage, and loss moduli with the incorporation of CNTs. The CNT concentration of 0.5 vol% was found to be the optimum condition for enhancement of mechanical properties. The findings show the promise of this ink material and printing method for various applications such as aerospace structures and electronics.
About our Lab
Abadi Lab at Michigan Tech is an interdisciplinary lab focusing on solving problems at the interface of materials, mechanics, and nanoscience. Our lab employs advanced manufacturing techniques such as 3D printing, bioprinting, and chemical vapor deposition to explore various engineering applications of advanced materials ranging from structural and electronic materials to tissue engineering and medical devices. A great focus of our lab is on conductive nanomaterials especially carbon nanotubes, carbon nanotube forests, graphene, and conductive nanomaterials incorporated in polymer composites. Visit other pages of this website to learn more about us and feel free to contact us if you have any questions or comments.
Persisting in the Name of Passion
How Parisa Abadi Went From Mechanical Engineering to Heart Repair
In our 2019 paper published in ACS Applied Materials and Interfaces and highlighted on the cover, we report fabrication of biocompatible, electrically conductive and tough microfibers made of hyaluronic acid and single-walled carbon nanotubes by a wet spinning method. The microfibers presented excellent electrical conductivity, mechanical properties and stable actuation behavior in biological medium. In vitro cytocompatibility and in vivo biocompatibility experiments in mice were carried out, and showed that the fabricated microactuators are applicable in biomedical areas. Overall, the microfibers and bundles made with weaving the fibers exhibit excellent mechanical properties, stable electrical conductivity, good electrochemical and actuation behavior and, hence, prove to be promising materials for implantable microactuators and flexible electronic devices in biomedical applications.
Immaturity of cardiomyocytes derived from induced pluripotent stem cells is an important issue in the field of cell therapeutics. In our 2018 paper published in Advanced Functional Materials and highlighted on the cover, we develop substrates with multi-scale topography resembling the three-dimensional features of the native heart environment to address the issue of immaturity of cardiomyocytes. The results show faster differentiation, enhanced maturity, and improved beating. Read the news about our article and group research in Michigan Tech News, Science Daily, Medical Xpress, News Medical, Technology Network, Bioengineer.org, Science Newsline, Medindia, Drugnews.in, and Medicalnewser.com.
Abadi lab receives NSF award
Dr. Abadi in cooperation with other Michigan Tech researchers receives NSF Major Research Instrumentation Program (MRI) grant for Acquisition of Nanoscribe Photonic Professional GT2 3D Lithography System.
MSE Holiday Card
An SEM micrograph taken by Masoud from a sample prepared using the elastocapillary assembly technique by Masoud and Roya was selected for the MSE holiday card. Congratulations to Masoud and Roya!
Masoud presented at ASTM ICAM
Masoud presented at the ASTM International Conference on Additive Manufacturing. He was also selected as a finalist for the best presentation award. Congratulations!