| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Printed Electronics and Additive Manufacturing: Advanced Functional Materials, Processing Concepts, and Emerging Applications
|
| Presentation Title |
Laser-induced Graphene Microelectrodes: Toward One-step Fabrication of Implantable Flexible Devices |
| Author(s) |
Mostafa Bedewy |
| On-Site Speaker (Planned) |
Mostafa Bedewy |
| Abstract Scope |
Major challenges still hinder our ability to produce graphene-based microelectrodes with tailored morphology and surface chemistry, especially for flexible brain probes. Unlike different techniques of printing carbon-containing ink or parallel transfer of CVD-grown nanocarbons, this talk will focus on a unique bottom-up approach for directly growing different types of graphenic nanocarbons on polymer films by laser irradiation. The speaker will present an approach that leverages this direct-write process, often referred to as laser-induced graphene (LIG), for creating spatially-varying morphologies and chemical compositions of miniaturized LIG electrodes, by leveraging gradients of laser fluence. Moreover, this talk will introduce a method for controlling heteroatom doping of these LIG electrodes based on controlling the molecular structure of the polymer being lased., i.e. by introducing sulfur- and fluorine- containing backbones. We show superhydrophobc and parahydrophobic surface properties and demonstrate their use as electrochemical biosensors for the detection of the neurotransmitter dopamine with nanomolar sensitivity. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nanotechnology, Polymers, Process Technology |