Nanocarbon-{[Na-10(Prw10o36)](2)Center Dot 130h(2)O} Composite To Detect Toxic Food Coloring Dyes At Nanolevel

Monitoring of adulterated and toxic food colors is important due to their potential toxicity and pathogenicity. Here, we repot an Ln-POM (lanthanide polyoxometalate) cluster, {[Na-10(PrW10O36)](2)center dot 130H(2)O}, with carbon nano-onion (CNO) hybrid composite which is a highly efficient sensor for the rapid detection of toxic dyes like metanil yellow, auramine O, Orange II and in allura red (red 40) as low as 3.83; 4.73; 4.14 and 2.90 nmol ml(-1) concentration, respectively, by fluorescence spectroscopy.