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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 17: Poster Session I
CPP 17.57: Poster
Monday, March 27, 2023, 18:00–20:00, P3
Incorporation of Nanomaterials to Form Electrically Conductive Multilayers with the Layer-by-Layer Technique — •Muhammad Khurram1, Sven Neuber2, Annekatrin Sill3, and Christiane A. Helm4 — 1muhammad.khurram@uni-greifswald.de — 2sven.neuber@uni-greifswald.de — 3annekatrin.sill@uni-greifswald.de — 4helm@uni-greifswald.de
Surface modification of an implant provides an adequate bio-interface and determines which promotes cell adhesion and proliferation. To promote healing, the coating should be electrically conductive. The Layer-by-Layer (LbL) method * sequential adsorption of oppositely charged macromolecules or nanoparticles - has become prominent in coating and functionalizing a surface. Polyelectrolytes show poor charge transfer capabilities; therefore, electrically conductive nanoparticles are essential. MXene nanoparticles are investigated. The MXene contains a high aspect ratio, functional groups, and good electrical conductivity. LbL films are built from polyanion MXene and polycation poly-diallyldimethylammonium (PDADMA). In addition, the conductive and conjugated polymers poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is used because of their promising electrical properties. PDADMA is again the polycation. With the Atomic Force Microscope (AFM) film morphology and roughness are determined. Layer growth is monitored by UV-Vis Spectroscopy and ellipsometry. The electrical conductivity is determined with the two-point method.