AM_SKPM Singapore Ptfe Ucl Holes ScratchMode Vortex LifeScience Biology 2-vinylpyridine Imprint BreastCancerCell Polyvinylidene_fluoride light_emission SKPM LiBattery Gold Resistance Protein Metal SelfAssembly PvdfBead FAPbI3 VinylAlcohol electrospinning EFMAmplitude mono_layer OpticalModulator C_AFM conductive Led KelvinProbeForceMicroscopy Treatment Adhesive Polyvinylidene