BioMed X completes development of graphene-based biosensors for near-patient testing

BioMed X has announced the completion of its first research collaboration project with Roche Diagnostics in the field of nanomaterial-based biosensors for near patient testing. BioMed X successfully achieved the proof of principle for a new sensor platform allowing the analysis of several different parameters from blood samples with one single device.

The project was initiated in 2015 as a call for application using BioMed X’s proprietary crowdsourcing platform for project proposals. As a result of an international innovation challenge, a team of early-career researchers from five different countries worked in Germany on the design of a field effect transistor-based multimodal sensing platform for proteins, blood gases and electrolytes, metabolites and enzymes with a single-use disposable material for point-of-care diagnostics.

US researchers and Aixtron engineers grew high-quality 300 mm graphene on copper-coated silicon wafers

Researchers from the University of Texas at Austin, in collaboration with Aixtron developed a new method to grow high-quality wafer-scale (300 mm) graphene sheets. This process may enable the integration of graphene with Silicon CMOS and pave the way towards graphene-based electronics.

The method is based on CVD growth on polycrystalline copper film coated silicon substrates. They report that their graphene has better charge carrier transport characteristics compared to previously synthesized poly- or single-crystalline wafers. The graphene has few defects and covers over 96% of the 300-mm wafer substrate.

Graphene Frontiers partners with CNSE on a $5 million graphene fabrication project

In July 2014, Graphene Frontier launched the "six sensors" brand for highly-sensitive chemical and biological GFET-based sensors following a financing round of $1.6 million. Graphene Frontiers announced a partnership with the Colleges of Nanoscale Science and Engineering (CNSE) at SUNY Polytechnic Institute (SUNY Poly) to develop next generation graphene-based processes, technologies, and techniques.

Graphene Frontiers G-FET sensorGraphene Frontiers G-FET sensor

As part of the partnership, Graphene Frontiers and the CNSE will build a 300 mm fabrication process and wafer-transfer facility. The total investment in this project will reach $5 million over 3 years (and will be funded by the CNSE and Graphene Frontiers) and the project will employ 27 employees.

Graphene-based multi-modal bio-sensor

Researchers from the University of Pennsylvania demonstrated a graphene-based mutli-modal bio-sensor that can transmit transducing protein binding events into optical, electrical, and mechanical signals.

Such a multi-modal sensor means that you can inspect a single sample and obtain information from the three properties (optical, electrical and mechanical). This could lead to a sensor that outperforms single-mode sensors even if each signal detection by itself is not the best one. The researchers say that their sensor achieves a 100-times improvement in the sensing dynamic range over current single-mode sensors.

Graphene Frontier's G-FET based chemical sensor explained

Two weeks ago, Graphene Frontier announced that they raised $1.6 million, which will be used to expand operations and accelerate the development of their proprietary GFET sensors and manufacturing process. Graphene Frontiers launched the "six sensors" brand for highly-sensitive chemical and biological GFET-based sensors that can be used to diagnose diseases with multiple markers such as cancers and illnesses currently diagnosed using ELISA technologies.

Graphene Frontiers G-FET sensor

I asked the company to explain a little more on this interesting new sensor platform. It turns out that the sensor is based on a functionalized graphene field effect transistor (GFET). The unique properties of graphene enable detection of molecules in femtomolar (fM) concentrations - this is vastly better than any other sensor on the market.

Versarien - Think you know graphene? Think again! Versarien - Think you know graphene? Think again!