About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
|
Symposium
|
Next Generation Biomaterials
|
Presentation Title |
Synthesis of Three-dimensional Ceramic Microlattices by Aerosol Jet Nanoparticle Printing and their Use in Cancer Biomarker Detection |
Author(s) |
Bin Yuan, Chunshan Hu, Azahar Ali, Rahul Panat |
On-Site Speaker (Planned) |
Bin Yuan |
Abstract Scope |
Three dimensional (3D) ceramic micro/mesoscale lattice structures are important for a wide range of technological applications. In spite of considerable progress in this area, the current processes suffer from control over dimensions at length scales below about a millimeter. In this research, we report an entirely new approach to synthesize complex 3D microengineered ceramic structures such as micro pillars and micro lattices by using Aerosol Jet (AJ) nanoprinting. Complex structures of zinc oxide with a minimum feature size of 30 um and having aspect ratios of up to 25:1 without any templating/support are demonstrated, thus filling an important gap in possible ceramic architectures. The structures show a shrinkage of 1-2% after sintering, leading to near-net-shape part fabrication. We demonstrate a device using AJ printed ceramic 3D structures where an electrochemical cell is used to detect Her2 breast cancer biomarkers by immobilizing antibodies on the rough and porous 3D ceramic surfaces. |