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Using ellipsometry, a quartz crystal microbalance, and infrared spectroscopy, we discovered that polyelectrolytes such as anionic poly(acrylic acid) and cationic poly(allylamine hydrochloride) can be deposited consecutively not only onto hydrophilic organic surfaces such as the self-assembled monolayers (SAMs) of 4-aminobenzenethiol on Ag, but also onto hydrophobic organic surfaces such as the SAMs...
We demonstrate in this work that 2-μm-sized Ag (μAg) powders can be used as a core material for constructing biomolecular sensing/recognition units operating via surface-enhanced resonance Raman scattering (SERRS). This is possible because μAg powders are very efficient substrates for both the diffuse reflectance IR and the surface-enhanced Raman scattering–SERRS spectroscopic characterization of...
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