Worcester_Polytechnic_Institute Cobalt-dopedIronOxide SPMLabs SThM Graphene Implant Tin disulfide EFM Ito WS2 Pvdf NCM Styrene Gong Zhi Copper Sperm P3HT Oxidation PVA Materials CuFoil LFM Tin sulfide Holes layers ForceVolumeMapping GlassTemp LowDensityPolyethylene FM_SKPM Scratch Typhimurium Inorganic_Compound DeoxyribonucleicAcid PVAP3HT