This decoupled core formation from interfacial modification, keeping the metallic core constant while varying the PEG coating thickness. The following characterizations verify these assumptions and quantify how physisorbed PEG alters the hydrodynamic and interfacial environment. The results of dynamic light scattering (DLS) characterization revealed a clear trend in both hydrodynamic diameter ( D h ) and surface charge (ζ-potential) properties across the GNPs-PEG series.
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Decoupling Colloidal Stability and Catalytic Activity of Gold Nanocatalysts via In-Situ Sacrificial Physisorbed PEG Coatings.
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