1/23/2024 0 Comments Casa xps silicon![]() The formed layers were characterized by X-ray photoelectron spectroscopy and gold nanoparticles deposition was monitored by scanning electron microscopy and surface-enhanced Raman scattering. We also changed the chain length for thiol-terminated layers through covalent grafting of mercaptoundecanoic acid (MUA) on APTES-modified layers, and the protocol of nanoparticles deposition to evaluate whether other factors must be taken into consideration to rationalize this interaction. ![]() Thus, we have carefully grafted silanes terminated by either amine or thiol groups starting from aminopropyltriethoxysilane (APTES) or mercaptopropyltriethoxysilane. We studied the parameters that can influence this interaction, starting with the nature of the terminal chemical function. Controlling the immobilization step, especially nanoparticles dispersion and coverage, is an important issue for all of these communities. Immobilization of gold nanoparticles on planar surfaces is of great interest to many scientific communities chemists, physicists, biologists, and the various communities working at the interfaces between these disciplines. ![]()
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