Conductive quantum dot-encapsulated electrospun nanofibers from polystyrene and polystyrene-co-maleic anhydride copolymer blend as gas sensors  
(104-108) Reactive and Functional Polymers 71 #2 (2011)
Tatavarty et al of the Korea University and Korea Research Institute of Chemical Technology, South Korea used  electrospinning to obtain uniformly distributed Cadmium Selenide (CdSe)/Zinc Sulfide (ZnS) core shell quantum dot (QD) encapsulated nanofibers in polymeric mixture of 4:1 ratio of polystyrene (PS) and polystyrene-co-maleic anhydride (PSMA).  The introduction of QDs only into the PS–PSMA nanofibers induced electrical conductivity.  They also showed a two to three fold increase in electrical conductivity in the presence of volatile organic compounds. The obtained quantum-dot nanofibers (Qd-NFs) were 600–650 nm thick, photostable for more than six months, and applicable for electrical conductance or gas-based sensing applications.  (RDC 2/9/2011)