Worcester_Polytechnic_Institute PolymerPatterns Polyaniline HBN blended polymers EFMAmplitude STO Biofilm FM_KPFM Vac Current LithiumNiobate Graphene BCZT self-assembled_monolayer Conducting Wildtype Cobalt PS_PVAC LaAlO3 #Materials Cell Au111 Piezo lift_mode self-assembly Fiber India FailureAnalysis ContactModeDot Polytetrafluoroethylene Styrene Epoxy plastics Solution