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Fluorescent, water-soluble poly(p-aryleneethynylene)s (PAE) were immobilized on commercially available nylon mem-branes using a slot plotter, creating fluorescent, barcode-like sensor strips. Digital imaging, using a standard digital camera, before and after immersion of the strips in buffers of different pH, displays a unique color for each pH value. Statistical evaluation - MANOVA and PCA - of the acquired data reveals that the immobilized PAEs are superior to the identical fluorophores when dissolved. The pH sensor-array discriminates 20 different brands of commercial cola soft drinks through differences in pH and colorant-PAE-interactions.
This article was published in the following journal.
Name: Chemistry (Weinheim an der Bergstrasse, Germany)
Hydrogen peroxide is converted by catalase to molecular oxygen and water to remove oxidative stress. In this study, catalase immobilization was performed using poly(2-hydroxyethyl methacrylate-glycidy...
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Examine the effects of cola on risks of kidney stones
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Narrow pieces of material impregnated or covered with a substance used to produce a chemical reaction. The strips are used in detecting, measuring, producing, etc., other substances. (From Dorland, 28th ed)
Microbial, plant, or animal cells which are immobilized by attachment to solid structures, usually a column matrix. A common use of immobilized cells is in biotechnology for the bioconversion of a substrate to a particular product. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed)
Enzymes which are immobilized on or in a variety of water-soluble or water-insoluble matrices with little or no loss of their catalytic activity. Since they can be reused continuously, immobilized enzymes have found wide application in the industrial, medical and research fields.
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