Graphene bed/pressure sensor?

I noticed this instructable [www.instructables.com] which describes making a putty whose conductivity varies with pressure by mixing graphene into it.

Now, the putty itself isn't that interesting for 3D printing (IMHO), and graphene powder is expensive ($2-$400/gram), but I wonder whether there's an application of this new wonder-product?

Google also found this paper on a graphene-based piezo pressure sensor: [www.scribd.com]

I'm thinking that something like this [www.aliexpress.com] might vary its resistance with tiny amounts of bending or compression?

Has anyone else looked into this?

... before graphene was found, we mixed graphite with silicone rubber, to get pressure sensitive pads or even "actors", which changed length and bending with applied voltage

Graphite is essentially graphene (small flakes of) ... but much cheaper and easier to source too (e.g. from a pencil) ...

---

Viktor
--------
Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]

Call for the project "garbage-free seas" - [reprap.org]