Graphene Technologies

 Graphene Biomedical

Biomedical Biosensors
Graphene oxide (GO) and reduced graphene oxide (rGO) have been used in fabricating sensors for biologically relevant chemicals. The fluorescence quenching property of GO has been used to make sensors based on the fluorescence resonance energy transfer (FRET) effect. Field effect transistor (FET)-biosensors have also been made for sensing glucose and DNA among others.

Biomedical Drug Delivery
Graphene oxide (GO) is a surfactant having both hydrophilic and hydrophobic sections. This property has been used to dissolve hydrophobic drugs. If researchers can demonstrate that graphene oxide is non-toxic as well, it may be a useful alternative to polymer micelles for drug delivery. Graphene oxide can be bound to conjugated polymers, proteins, and other biologically relevant molecules for use in controlled drug release as well as other biological applications.

Biomedical Tissue Engineering
The unique features of graphene such as biocompatibility, chemical inertness, and surface structure make it suitable incell culture applications. The excellent electrical conductivity of graphene can be used in new generations of bioactive scaffolds to regulate cell behavior. Graphene-chitosan composites have been used as a conducting-substrate for cell culture, and tissue engineering. Graphene shows promise as a scaffold for other cell growth, such as bone, neural stem cells, and collagen.