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Ratiometric fluorescent

Takakusa H, Kikuchi K, Urano Y, Kojima H, Nagano T (2003) A novel design method of ratiometric fluorescent probes based on fluorescence resonance energy transfer switching by spectral overlap integral. Chemistry 9 1479-1485... [Pg.23]

Chang CJ, Javorski J, Nolan EM, Shaeng M, Lippard SJ (2004) A tautomeric zinc sensor for ratiometric fluorescence imaging application to nitric oxide-release of intracellular zinc. Proc Natl Acad Sci USA 101 1129-1134... [Pg.24]

Li H, Xu J, Yan H (2009) Ratiometric fluorescent determination of cysteine based on organic nanoparticles of naphthalene-thiourea-thiadiazole-linked molecule. Sensor Actuat B-Chem... [Pg.59]

Povrozin YA, Markova LI, Tatarets AL, Sidorov VI, Terpetschnig EA, Patsenker LD (2009) Near-infrared, dual-ratiometric fluorescent label for measurement of pH. Anal Biochem 390 136-140... [Pg.104]

Kiyose K, Kojima H, Urano Y et al (2006) Development of a ratiometric fluorescent zinc ion probe in near-infrared region, based on tricarbo-cyanine chromophore. J Am Chem Soc 128 6548-6549... [Pg.261]

Haidekker MA, Brady TP, Lichlyter D, Theodorakis EA (2006) A ratiometric fluorescent viscosity sensor. J Am Chem Soc 128 398-399... [Pg.304]

Vitha MF, Clarke RJ (2007) Comparison of excitation and emission ratiometric fluorescence methods for quantifying the membrane dipole potential. Biochim Biophys Acta-Biomembr 1768(1) 107—114... [Pg.329]

Taki M, Watanabe Y, Yamamoto Y (2009) Development of ratiometric fluorescent probe for zinc ion based on indole fluorophore. Tetrahedron Lett 50 1345-1347... [Pg.98]

Xu Z, Singh NJ, Lim J et al (2009) Unique sandwich stacking of pyrene-adenine-pyrene for selective and ratiometric fluorescent sensing of ATP at physiological pH. J Am Chem Soc 131 15528-15533... [Pg.100]

Yao S, Schafer-Hales KJ, Belfield KD (2007) A new water-soluble near-neutral ratiometric fluorescent pH indicator. Org Lett 9 5645-8... [Pg.132]

Kim S, Pudavar FIE, Prasad PN (2006) Dye-concentrated organically modified silica nanoparticles as a ratiometric fluorescent pH probe by one- and two-photon excitation. Chem Commun (Camb) 19 2071-2073... [Pg.132]

Qu Y, Hua J, Yiang Y, Tian H (2009) Novel side-chain naphthalimide polyphenylacetylene as a ratiometric fluorescent chemosensor for fluoride ion. J Polym Sci A Polym Chem 47 1544-1552... [Pg.386]

System 22 is an earlier example which incorporates Tsien s selective calcium receptor 23. ° System 23 has also been employed for the construction of ratiometric fluorescent sensors involving wavelength shifts. System 22 and other related PET sensors provide some of the most visually dramatic fluorescence off-on switching induced by biologically relevant levels of calcium ions in addition to their consistent predictability of most sensor parameters. [Pg.10]

Macrocyclic 25 has been constructed with pseudocryptand 26 which can be discerned within Tsien s ratiometric fluorescent sensors as the Na receptor unit. Conformational changes by 26 upon ion binding allows strong off-on PET sensing action due to the ion-induced increase of its oxidation potential. X-ray structural evidence for the Na -induced conformational changes in 26 shows decreased conjugation with a 40° twist about the C-N bond of the 2-anisidine unit. X-ray evidence is also available for similar conformational changes in the non-macro-cyclic Ca " receptor 23. A related analysis has been made for a Ag" -phenyl-azacrown ether interaction which involves a soft-soft component. ... [Pg.11]

Fig. 14 Ratiometric fluorescence images (right RLD, left PDR) of sensor spots in a microwell plate exposed to different hydrogen peroxide concentrations A1 0, A2 0.5, A3 1, A4 5, 51 7.5, 52 10, 53 25, 54 50, Cl 75, C2 100, C3 250, C4 500 ppm H202 (top). Calibration plot (R(j - R)/Ro versus the concentration of hydrogen peroxide in MOPS buffer (pH 6.9). Ro is the initial ratiometric fluorescence intensity of the sensor membrane, and R the intensity in presence of increasing concentrations of H202. Squares PDR image, triangles RLD image (bottom)... Fig. 14 Ratiometric fluorescence images (right RLD, left PDR) of sensor spots in a microwell plate exposed to different hydrogen peroxide concentrations A1 0, A2 0.5, A3 1, A4 5, 51 7.5, 52 10, 53 25, 54 50, Cl 75, C2 100, C3 250, C4 500 ppm H202 (top). Calibration plot (R(j - R)/Ro versus the concentration of hydrogen peroxide in MOPS buffer (pH 6.9). Ro is the initial ratiometric fluorescence intensity of the sensor membrane, and R the intensity in presence of increasing concentrations of H202. Squares PDR image, triangles RLD image (bottom)...
This receptor shows a remarkable selectivity for Mg2+ over Ca2+ under physiological conditions and has found applications in 19F NMR probes and ratiometric fluorescent sensors based on wavelength shifts.[62] In high concentrations, however, both Ca2+ and Mg2+ can be bound. The similarity of fluorescence enhancements with both ions is the result of essentially identical conformational changes produced upon complexation. Each ion-bound state effectively decouples the amine substituent from the oxybenzene unit, so that PET is similarly suppressed. This means that the charge density difference between the two cations is of secondary importance in these conformationally switchable systems. [Pg.350]

Figure 11.16 Multishell silica nanoparticle for ratiometric fluorescence sensing of Pb2+ ions, (a) Schematic working scheme of the sensor binding of the Pb2+ ions to the thiol groups present on the surface causes the quenching of the emission of the dansylamide dyes (labeled e when unperturbed and q when quenched) in the outer shell but not of the methoxynaphthalene dyes in the core (labeled r). (b) TEM micrograph of the particles (inset) and ratiometric behavior of the fluorescence emission at different Pb2+ concentrations.83 (Reprinted with permission from M. Arduini et al., Langmuir, 2007, 23, 8632—8636. Copyright 2007 American Chemical Society.)... Figure 11.16 Multishell silica nanoparticle for ratiometric fluorescence sensing of Pb2+ ions, (a) Schematic working scheme of the sensor binding of the Pb2+ ions to the thiol groups present on the surface causes the quenching of the emission of the dansylamide dyes (labeled e when unperturbed and q when quenched) in the outer shell but not of the methoxynaphthalene dyes in the core (labeled r). (b) TEM micrograph of the particles (inset) and ratiometric behavior of the fluorescence emission at different Pb2+ concentrations.83 (Reprinted with permission from M. Arduini et al., Langmuir, 2007, 23, 8632—8636. Copyright 2007 American Chemical Society.)...
Langner M, Hui SW. Merocyanine interaction with phosphatidylcholine bilayers. Biochim. Biophys. Acta. 1993 1149 175-179. Ross E, Bedlack RS, Loew EM. Dual-wavelength ratiometric fluorescence measurement of the membrane dipole potential. Biophys. J. 1994 67 208-216. [Pg.992]

The racemic bicyclic isoxazolidine 626a, bearing a pyrenyl moiety, was shown to be an effective ratiometric fluorescent sensor selective for Ag(i) <2003JA2884>. The selective complexation of compounds 626a-e and 627 toward Fe(lll), Cu(ll), and Ru(lll) was also analyzed <2005TL173>. [Pg.472]

Many of these dyes and their applications have been reviewed in detail elsewhere (50). Of note, probes are available for both UV and 488 nm excitation and many of these calcium probes (Fura-l, Indo-1, Calcium Green-2) have the advantage of utilizing a ratiometric fluorescence read-out. These dyes have been successfully used in multiparametric analyses, using both flow cytometry and confocal microscopy, which has led to an enhanced understanding of the role of [Ca2+]i in apoptosis. Burchiel et al. (51) have recently published a review of multiparametric flow cytometric Ca2+ analysis. [Pg.19]

Gross, E, Bedlack, E S., and Loew, L. M., 1994. Dual-wavelength ratiometric fluorescence measurement of the membrane dpote potential, Bi hys, J. 67 208-216. [Pg.90]

Hu, J., Zhang, G., Ceng, Y., and liu, S. (2011) Micellar nanoparticles of cod-rod-cod triblock copolymers for highly sensitive and ratiometric fluorescent detection of fluoride ions. [Pg.329]

Li, HT, Ren, XJ, Iflng, LM, Balasubramanian, S, and Klenerman, D, Measuring single-molecule nucleic acid dynamics in solution by two-color filtered ratiometric fluorescence correlation spectroscopy. Proceedings of the National Academy of Sciences of the United States of America 101 (2004) 14425-14430. [Pg.92]

See other pages where Ratiometric fluorescent is mentioned: [Pg.23]    [Pg.39]    [Pg.290]    [Pg.299]    [Pg.9]    [Pg.9]    [Pg.11]    [Pg.697]    [Pg.566]    [Pg.989]    [Pg.163]    [Pg.357]    [Pg.441]    [Pg.136]    [Pg.495]    [Pg.79]    [Pg.340]    [Pg.25]    [Pg.316]   


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Ratiometric fluorescent sensors

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