TY - JOUR A1 - Resch-Genger, Ute A1 - Grabolle, Markus A1 - Starke, M. T1 - Highly fluorescent dye-nanoclay hybrid materials made from different dye classes N2 - Nanoclays like laponites, which are commercially avaible in large quantities for a very moderate price, provide a facile solubilization strategy for hydrophobic dyes without the need for chemical functionalization and can act as a carrier for a high number of dye molecules. This does not require reactive dyes, amplifies fluorescence signals from individual emitters due to the high number of dyes molecules per laponite disk, and renders hydrophobic emitters applicable in aqueous environments. Aiming at the rational design of bright dye-loaded nanoclays as a new class of fluorescent reporters for bioanalysis and material sciences and the identification of dye structure−property relationships, we screened a series of commercial fluorescent dyes, differing in dye class, charge, and character of the optical transitions involved, and studied the changes of their optical properties caused by clay adsorption at different dye loading concentrations. Upon the basis of our dye loading density-dependent absorption and fluorescence measurements with S2105 and Lumogen F Yellow 083, we could identify two promising dye−nanoclay hybrid materials that reveal high fluorescence quantum yields of the nanoclay-adsorbed dyes of at least 0.20 and low dye self-quenching even at high dye-loading densities of up to 50 dye molecules per laponite platelet. KW - nanoclay KW - laponite KW - fluorescence KW - organic dye KW - carrier system KW - fluorescent reporter KW - screening PY - 2016 U6 - https://doi.org/10.1021/acs.langmuir.5b04297 SN - 0743-7463 VL - 2016 IS - 32 SP - 3506 EP - 3513 PB - Amer Chemical SOC CY - Washington, DC, USA AN - OPUS4-36511 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -