UTEM Polyaniline Plug Adhesive Regensburg BismuthVanadate Sadowski China 2-vinylpyridine MagneticForceMicroscopy lift_mode ElectrostaticForceMicroscopy CntFilm BloodCell cannabinoid NUS_NNI_Nanocore Kevlar Writing Dopped Cobalt Alkane Hole Carbon WS2 StyreneBeads FM_SKPM ForceMapping WWafer Phase HighResolution Holes I-VSpectroscopy biocompatible HiVacuum Korea