Concentration-dependent dye aggregation in the LbL-assembly of fluorescein isothicyanate labeled poly(allylamine hydrochloride) and poly(acrylic acid) on cotton fabrics

Transcutaneous fluorescence spectroscopy as a tool for non-invasive monitoring of gut function: first clinical experiences

“…For the 5 eq sample, however, a double-peaked absorption spectrum was observed (Figure S8 B, Supplementary Information) that indicated aggregation of FITC (e.g. see 20 ). Aggregation suggests that the concentration of FITC is too high as it typically leads to quenching of the fluorescence signal (e.g.…”

“…Aggregation suggests that the concentration of FITC is too high as it typically leads to quenching of the fluorescence signal (e.g. 20 .). Nonetheless, we also recorded fluorescence spectra from both synthesised samples and from the commercial product for comparison.…”

Luminescent hybrid coatings prepared by a sol–gel process for a textile-based pH sensor

“…[15][16][17] Indeed, the deposition of fluorescein into cotton yarns using the impregnation method was reported for anticounterfeiting applications. 18 Khan et al 19 provided a new strategy for the applications of dye molecules on textiles by coating fluorescein isothicyanate-labeled poly(allylamine hydrochloride) and poly(acrylic acid) on cotton fabric by a method involving the layer-by-layer (LbL) assembly of films. Luo et al 20 reported the use of the dip-dyeing process to immobilize the fluorescent material onto cotton fibers to detect and separate the Cd 2+ in water.…”