Abstract: 

In this talk, I will present two types of novel sensors that we are developing in my group – a graphene-based MEMS pressure sensor and a graphene-based biomimetic bio-sensor.

Graphene MEMS pressure senor: One of the biggest challenges in any MEMS device is the wafer-scale fabrication of suspended and actuating elements, which is particularly difficult with atomically thin 2-dimensional materials. I will present a new graphene/polymer heterostructure membrane that seeks to overcome this problem. Using this, we have demonstrated ultra-high sensitivity pressure sensors and touch-sensors over a wide range of operating conditions.

Graphene biomimetic bio-sensor: The cell membrane is a complex system comprising primarily of a phospholipid bilayer, which a variety of biomolecules such as proteins and ion-channels reside. In my lab, we have self-assembled biomimetic phospholipid membranes on graphene sensor surfaces, in order to study the processes that occur in such membranes and exploit them for biosensing. 

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By: Sean Paul Ogilvie
Last updated: Monday, 11 September 2017