Quenching effects of gold nanoparticles in nanocomposites formed in water-soluble conjugated polymer nanoreactors

Multifunctional Gold Nanostar Conjugates for Tumor Imaging and Combined Photothermal and Chemo-therapy

“…This may be attributed to the cross linking induced by the coupling agents (EDC/NHS). The quenching effect of gold nanoparticles towards quantum dots and dye molecules had been widely reported 27-29. However, our results demonstrated that the limited extent of overlap between absorption spectrum of Au NS and emission spectrum of MPA or DOX caused minimal quenching effect of Au NS.…”

Functionalized gold nanoparticles for 2-naphthol binding and their fluorescence properties

“…The surface did not exceed the monomolecular coverage with a value of 0.967 in the applied concentration range. The quenching effect of AuNPs is widely known [8,[31][32]. We observed the same in the case of the citrate-reduced nanodispersion: 2-naphthol namely, the fluorescence intensity of (at 70 M concentration in all samples) is gradually decreased by increasing the concentration of AuNPs (Fig.…”

Polythiophene-based conjugated polyelectrolyte: Optical properties and association behavior in solution

“…Conformations and intermolecular interactions are fixed by strong electrostatic forces when transferred from solution to solid state. It can be even more pronounced, e.g., in the fabrication of layer-by-layer assemblies of the polyelectrolytes of the opposite charge [7], or in the composites with charged surfaces such as nanoparticles [8][9][10][11]. Ionic polythiophenes are a peculiar group among other CPEs because optical properties of polythiophenes are strongly influenced by two parameters.…”