Graphene nanoribbons materialize as a next-generation carrier for development of nanodimensional diagnostic devices and drug delivery systems due to the unique and cutting-edge electronic, thermal, mechanical and optical properties associated with graphene. This review article focuses on the important applications of GNRs in the field of biomedicine and biosensing. Graphene nanoribbons are highly developed form of graphene with a wide importance due to their distinctive properties such as large surface area, enhanced mechanical strength and improved electro-conductivity. GNRs are effective substitutes for conventional silicon-based transistors used in biochemical reactions and exploited in the fields of biomedicine and diagnostics due to their effective uptake by mammalian cells. The cellular interactions of GNRs consist of highly specific receptormediated transport, phagocytosis and non-specific transport systems involving copious forces of adhesion. The presence of quantum chains in GNRs increases their potential for fabrication of technically challenging sensing devices in the future.

    Abstract
    1 Introduction
    2 Uptake of GNRs by mammalian cells
    3 Toxicity related to GNRs
        3.1 In vitro and in vivo toxicity studies
        3.2 Bacterial toxicity
    4 Biomedical applications of GNRs
        4.1 GNR in drug and gene delivery systems
        4.2 Molecularly imprinted polymer (MIP)
        4.3 Biosensors
    5 Conclusions
    References

• Pravin Shende(Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management)
• Steffi Augustine(Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management)
• Bala Prabhakar(Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management)