Nanoparticle 3D Printing for Next Generation Biomedical and Electronic Devices


Nanoparticle 3D Printing for Next Generation Biomedical and Electronic Devices

Rahul Panat, Carnegie Mellon University

3:30 p.m., September 5, 2023   |   B001 Geddes Hall

In this research, we develop a nature-inspired droplet-based nanoparticle 3D printing method that creates highly complex three-dimensional architected structures and use them to realize novel devices. Fluid dynamics of aerosol microdroplets is used to stack nanoparticles (or 2D materials) in 3D space without auxiliary support to create such structures.

First, this technique is used to fabricate a biosensor that detects COVID-19 antibodies and antigens in 10 seconds. This is the fastest detection of this biomarker.

Rahul Panat
Rahul Panat

Second, we use 3D printing to create fully customizable brain-computer interfaces (BCIs) having recording densities of thousands of electrodes/cm2, which is 5-10× the current state-of-the-art BCI technologies. The technology is tested by recording the action potentials from mouse brain. The same technique is also used to create high-capacity Li-ion batteries and thin flexible robotic skins with embedded sensors.

The talk will also include our recent research on (i) creating digital twins of the nanoparticle 3D printing process and using AI for process control, and (ii) use of AI to design and fabricate plate lattice structures for the US Army’s combat vehicles program.

Prof. Rahul Panat is Russell V. Trader Professor of Mechanical Engineering at Carnegie Mellon University (CMU). He is also the Associate Director of Research at the Manufacturing Futures Institute at CMU, which is focused on bringing the latest advances in digital technologies to advanced manufacturing.

Prof. Panat completed his Ph.D. in Theoretical and Applied Mechanics from the University of Illinois at Urbana in 2004. He joined Intel Corporation’s R&D unit in Chandler, AZ, where he worked for 10 years on microprocessor manufacturing. At Intel, Dr. Panat led a team of engineers that developed the manufacturing process for world’s first halogen-free IC chip. He was part of a team that introduced the first Si chip with a billion transistors.

He returned to academia in 2014 and joined CMU in fall 2017. His research is focused on microscale 3D printing and its applications to biomedical engineering, stretchable electronics, and Li-ion batteries. His research is funded by NIH, DOE, NSF, US Army, US Air Force, in addition to industry and several foundations. Prof. Panat is recipient of several awards, including MRS gold medal, Mavis Memorial Award, an award at Intel for his work on the halogen-free chip, Struminger Teaching Fellowship, and the Russell V. Trader chair professorship at CMU.