  Since last decade, graphene has materialized itself as one of the phenomenal
materials to modern researchers because of its remarkable thermal, optical,
electronic, and mechanical properties. Graphene holds enormous potentials for
lab on chip (LOC) devices and can provide diverse fabrication routes and
structural features due to their special electronic and electrochemical
properties. A LOC device can manipulate fluids using microchannels and chamber
structures, to accomplish fast, highly sensitive and inexpensive analysis with
high yield. Hence, the graphene based LOC devices can constitute a
well-controlled microenvironment for both advanced chemical/biological
evaluation and low-cost point-of-care analysis etc. This review critically
debates the graphene as a prime candidate for microfluidic devices and their
future applicability towards various practical applications. Finally, the
opportunities and challenges for the future of graphene with respect to their
commercial challenges and sustainability perspectives are discussed.
