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We have studied interactions between positively charged MUTAB‐stabilized quantum dots (QDs) and model proteins, serum and live cells using fluorescence correlation spectroscopy (FCS), dynamic light scattering (DLS), time‐resolved photoluminescence (PL) and live‐cell fluorescence imaging. Using human serum albumin (HSA) as a model protein, we measured the growth of a protein adsorption layer (“protein...
Biological responses of cells and organisms to nanoparticle exposure crucially depend on the properties of the protein adsorption layer (“protein corona”) forming on nanoparticle surfaces and their characterization is a crucial step toward a deep, mechanistic understanding of their build‐up. Previously, adsorption of one type of model protein on nanoparticles was systematically studied in situ by...
FLIMaging nanoparticle degradation: semiconductor and metal nanoparticle degradation has been observed in live cells over 3 d via the change of the characteristic luminescence lifetime using fluorescence lifetime imaging microscopy (FLIM). Thus, FLIM is a simple yet robust tool to examine the intracellular stability of photoluminescent nanoparticles in live cells, tissues, and organisms.
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