Graphene reinforced Poly(vinylidene fluoride) composite nanofibers were prepared and their morphology, crystallinity, polymorphism and electrical outputs were investigated for the first time.. Nanofibers were prepared using electrospinning technique with different graphene contents. DSC, FTIR and WAXD analyses were used to evaluate the polymorphism of PVDF crystals upon graphene addition. It was observed that addition of a small amount of graphene (0.1%wt) significantly increased the F(β) and open-circuit voltage of nanofibers. However, further increase in graphene content decreased the electrical output of randomly oriented nanofibers. The developed PVDF/graphene nanogenerator has the ability to fully synchronize the finger movement and its generated electricity can light up a commercial LED for 30 seconds. This new type of PVDF generator has the potential to be used as a self-charging power source and could be used in powering the personal electronics.
The COVID-19 pandemic is the largest global public health outbreak in the 21st century so
far. Based on World Health Organization reports, the main source of SARS-CoV-2 infection
is transmission of droplets released when an infected person coughs, sneezes, or exhales.
Viral particles can remain in the air and on the surfaces for a long time. These droplets
are too heavy to float in air and rapidly fall down onto the surfaces. To minimize the
risk of the infection, entire surrounding environment should be disinfected or neutralized
regularly. Development of the antiviral coating for the surface of objects that are
frequently used by the public could be a practical route to prevent the spread of the
viral particles and inactivation of the transmission of the viruses. In this short review,
the design of the antiviral coating to combat the spread of different viruses has been
discussed and the technological attempts for minimizing the coronavirus outbreak have been
highlighted.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.