H-aggregates of the cyanine dye Cy5 are formed during covalent linkage to the cationic macromolecule Poly(allylamine) (PAH). The nonfluorescent H-aggregates strongly restrict the usage of the dye for analytical purposes and prevent a quantitative determination of the labeled macromolecules. The behavior of the H-aggregates has been studied by investigation of the absorption and fluore... https://www.diegojavierfares.com/mega-deal-Chained-Skeleton-Arm-Garden-Stakes-Halloween-Decoration-top-buy/