fe_nd_b medical Varistor ThermalProperties MembraneFilter TiO2 TyphimuriumBiofilm UnivOfMaryland LowDensityPolyethylene mechanical property FastScan TipBiasMode TemperatureControlledAFM NTU Pyroelectric SingleCrystal Piezoresponse MultiferroicMaterials Singapore PtfeFilter CuSubstrate Growing LDPE Polarization Strontium MoS2 ElectroDeposition TempControl Ni-FeAlloy Bismuth WS2 ThermalDetectors Hexacontane SicMosfet CHRYSALIS_INC