Fluorescers water-soluble

Zheng, Zhang, C.W. and Dickson, R.M. (2004) Highly fluorescent, water-soluble, size-tunable gold quantum dots. Physical Review Letters, 93, 077402. 

Abrams B, Diwu Z, Guryev O et al (2009) 3-Carboxy-6-chloro-7-hydroxycoumarin a highly fluorescent, water-soluble violet-excitable dye for cell analysis. Anal Biochem 386 262-269... 

Since highly fluorescent water soluble gold clusters have been synthesized by various routes, they can be used in biology-related experiments such as imaging. These clusters may possess additional benefits over organic fluorophores and fluorescent semiconductor quantum dots. Organic fluorophores are prone to photobleaching,... 

The alkali metal borohydrides reduce aminochromes in solution very rapidly 70,109,120,147,148,1B1,1B5,157 the expected 5,6-dihydroxy-indole derivative was usually obtained in high yield.161,166 Reduction of the 7-iodoaminochromes was not usually accompanied by deio-dination to any appreciable extent.109,166 A number of relatively minor, unidentified, often fluorescent, water-soluble by-products were usually also detected in the reduction mixtures.109,148,155... 

Souto, A. A. Acuna, U. Andreu, J. M. Barasoain, I. Abal, M. Amat-Guerri, E. New fluorescent water-soluble taxol derivatives. Angew. Chem. Ini. Ed. Engl., 1995, 34 2710-2712. 

Souto AA, Acuna AU, Andreu JM, Barasoain I, Abal M, Amat-Guerri F (1995) New Fluorescent Water-Soluble Taxol Derivatives. Angew Chem Int Ed Engl 34 2710... 

ATP and GTP as compared to other nucleotides, whereas neghgible selectivity is found for 117 and 119. Compounds 116, 117, and 118 exhibited significant binding interactions with the fluorescent, water-soluble dye 8-hydroxyl-l,3,6-pyrene trisulfonate (HPTS) yielding a quenching of the fluorescence. Titration of the adducts with the nucleotides produces the displacement of the dye and the revival of the fluorescence. 

Physical Properties, Colourless solid when pure, usually pale brown. Sparingly soluble in cold water, soluble in hot water soluble also in cold mineral acids and caustic alkalis. Dissolves readily in cold alcohol, and solution possesses a faint blue fluorescence. 

Naphthalene, CioHs, colourless solid, m.p. 80°, insoluble in water, soluble in alcohol, characteristic odour. Anthracene, CjH4 C2H2 CjH4, m.p. 216°, white crystals when pure, with a faint blue fluorescence, but often very pale yellow crystals insoluble in water, slightly soluble in alcohol. Phenanthrene, m.p. 98°, and biphenyl, m.p. 69°, are white solids. 

Soluble Fluorescent Polymers. Several pigment manufacturers have developed fluorescent polymers iatended to be used as a solution for apphcation to various substrates. These toners come ia both solvent soluble and alkaline water-soluble forms. 

Water-based flexo inks can be formulated with either a soluble toner or with the Day-Glo EPX Series which is a tme pigment and can be formulated like a conventional pigment dispersion. The Radiant Aquabest or the Day-Glo WST can be formulated in an alkaline water-soluble system to yield strong inks. They have limited shelf life and inferior fade, but do not necessarily requite additional binder. Day-Glo EPX must be formulated with a binder such as a hard resin or can be used with one of the soluble toners such as WST. The EPX Series has several advantages over soluble toners such as much superior fade, exceUent ink stabiHty, and some hiding power over kraft-type papers. A disadvantage of the EPX is its lower tinctorial strength than other fluorescent toners. 

The conformation of bovine myelin basic protein (MBP) in AOT/isooctane/water reversed micellar systems was studied by Waks et al. 67). This MBP is an extrinsic water soluble protein which attains an extended conformation in aqueous solution 68 but is more density packed at the membrane surface. The solubilization of MBP in the AOT reversed micelles depends on the water/AOT-ratio w0 68). The maximum of solubilization was observed at a w0-value as low as 5.56. The same value was obtained for another major protein component of myelin, the Folch-Pi proteolipid 69). According to fluorescence emission spectra of MBP, accessibility of the single tryptophane residue seems to be decreased in AOT reversed micelles. From CD-spectra one can conclude that there is a higher conformational rigidity in reversed micelles and a more ordered aqueous environment. 

Dendritic hosts can be used in aqueous solution to encapsulate water-soluble fluorescent probes. Changes in the photophysical properties of these encapsulated probes are useful to understand the properties of the microenvironment created by the dendritic interior. For example, adamantyl-terminated poly(pro-pylene amine) dendrimers from the first to the fifth generation (36 represents the third generation) can be dissolved in water at pH<7 in the presence of -cyclodextrin because of encapsulation of the hydrophobic adamantyl residue inside the /1-cyclodextrin cavity and the presence of protonated tertiary amine units inside the dendrimer [72]. Under these experimental conditions, 8-anifi-... 

Ito, S., Toitani, N., Pan, L., Tamai, N. and Miyasaka, H. (2007) Fluorescence correlation spectroscopic study on water-soluble cadmium telluride nanocrystals fast blinking dynamics in the ps-ms region. J. Phys. Condens. Matter, 19, 486208. 

Lactate dehydrogenase (LDH) LDH released by cells with damaged membrane results in the conversion of a tetrazolium compound into a water-soluble fluorescent formazan dye Cell membrane Yes [32]... 

Chen YG, Zhao D, He ZK, Ai XP (2007) Fluorescence quenching of water-soluble conjugated polymer by metal cations and its application in sensor. Spectrochim Acta A Mol Biomol Spectrosc 66 448 -52... 

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