Graphene based sensors
Thursday 26 October 16:00 until 17:00
Pev3 4C10
Speaker: Aravind Vijayaraghavan (University of Manchester)
Part of the series: Materials Physics seminars
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.
By: Sean Paul Ogilvie
Last updated: Monday, 11 September 2017