Phosphate chelation

Subsequent to the preparation of 8, a number of other sapphyrin-nucleobase conjugated carriers were synthesized in the authors laboratories. These include compound 9 that has two cytosine moieties appended to the sapphyrin macrocycle, as well as two guanine-bearing sapphyrins, 10 and 11. Here, as expected, the ditopic sapphyrin-guanine receptor 10 served to enhance the transport of cytosine-5 -monophosphate (but not GMP or AMP). By contrast, the two tritopic receptors, namely 9 and 11, were designed with the intention of allowing for the formation of the complexation-derived triple-helix-like C-G-C and G-C-G motifs in addition to phosphate chelation by sapphyrin. In other words, it was expected that a centrally... 

Initial evidence for the proposed phosphate chelation mode of binding came from studies involving the water-soluble sapphyrin Here, it was first found that... 

Drum dryers potatoes, cereals, buttermilk, skim milk, dextrins, yeasts, instant oat meal, polyacylamides, sodium benzoate, propionates, acetates, phosphates, chelates, aluminum oxide, m-disulfuric acid, barium sulfate, calcium acetate-arsenate-carbonate-hydrate-phosphate, caustic, ferrous sulfate, glue, lead arsenate, sodium benzene sulfonate, and sodium chloride... 

TBS is used instead of PBS, since phosphate chelates the cobalt in theTdT buffer. 

In contrast with soaps, virtually all die synthetic anionic and nonionic surfactants do not form readily visible insolubles in the presence of the Ca++ and Mg-+ ions present in many water supplies—the familiar scum, curd, and lime soap of the laundry soap era. This property, in combination with the discovery that the detergency performance of many synthetic surfactants could be greatly augmented by the addition of certain phosphate chelating agents, led to the "detergent revolution" in the laundry-product field. Sec also Surfactants. 

Initial evidence for the proposed phosphate chelation mode of binding came from studies involving the water-soluble sapphyrin 7.l6b 59 Here, it was first found that simply mixing an excess (on a per phosphate basis) of this sapphyrin with dsDNA at neutral pH leads to immediate precipitation of the dsDNA in the form of green... 

Arite. [Consos] Sodium hexameta-phosphate chelating agent and water softener for textile use events precipitation of lime sotq>s. 

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