Results 261 to 270 of about 340,246 (317)
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A fluorescent probe for ecstasy
Chemical Communications, 2015A novel nanoarchitecture based on a pyrene-decorated tetraphosphonate cavitand embedded in nanoparticles is reported, which is able to sense the whole class of methamphetamines and related designer drugs in water, but gives a unique, distinctive, response towards ecstasy.
MASSERONI, Daniele +5 more
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A Fluorescence and Fluorescence Probe Study of Benzonaphthyridines
Journal of Fluorescence, 2011A series of benzo[b][1,8]naphthyridines has been synthesized by Friedländer condensation of 2-aminoquinoline-3-carbaldehyde 1 (o-aminoaldehyde) with alicyclic ketones in basic medium. Benzonaphthyridines branched with various side-chains and substituents are prepared with the aim of being investigated as a good fluorescent material.
Deepak Prakash, Shelar +3 more
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Fluorescence, Fluorescent Probes, and Optically Absorbing Probes
1974Excitable molecules can be promoted into an upper singlet electronic state,* such as S 2 of Fig. 7.1 by absorption of energy.
Donald F. H. Wallach, Richard J. Winzler
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Fluorescent probes in membrane studies
Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 1972Abstract A number of spectroscopic techniques are suitable for studying biological membranes. Of these, fluorescence has the sensitivity and time resolution for following membrane events associated with nerve excitation. In this paper, the nature of the information derived from measurements of the fluorescence properties of externally
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Fluorescent Probes of Cell Signaling
Annual Review of Neuroscience, 1989Fluorescence has long been recognized as a powerful tool for probing biological structure and function. Because probe molecules can be very much more fluorescent than the constituents of most biological specimens, the signal for the exogenous fluorophores can be measured continuously and nondestructively with excellent spatial and temporal resolution ...
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Free-Probe Fluorescence of Light-up Probes
Journal of the American Chemical Society, 2001The fluorescence enhancement of light-up probes (thiazole orange (TO) conjugated peptide nucleic acids (PNAs)) upon hybridization to target nucleic acid depends on the probe sequence, mainly due to large variations in free-probe fluorescence. Here we study three probes where the fluorescence in free state varies more than 50-fold.
N, Svanvik +3 more
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Novel fluorescent colloids as a DNA fluorescence probe
Analytical and Bioanalytical Chemistry, 2003Fluorescent perylene colloids in the 80-90 nm size range have been prepared by the reprecipitation method. These nanoparticles were modified by cetyltrimethylammonium bromide (CTAB) which inhibited their growth. The nanoparticles also readily interacted with DNA. The fluorescence emission was measured at lambda(ex)/ lambda(em)=400/565 nm.
Liu, Jinshui +4 more
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Fluorescent probes for bioimaging applications
Current Opinion in Chemical Biology, 2008Fluorescent probes based on small organic molecules have become indispensable tools in modern biology because they provide dynamic information concerning the localization and quantity of the molecules of interest, without the need of genetic engineering of the sample.
Takuya, Terai, Tetsuo, Nagano
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Fluorescent probes for opioid receptors
Life Sciences, 1983Naloxone, naltrexone and oxymorphone were labeled in position 6 with fluorescein by coupling their hydrazone analogs with fluorescein isothiocyanate. Naloxone was also coupled in a similar way with rhodamine-B. The compounds thus obtained were: "6-FN", [1-(N)-fluoresceinyl naloxone thiosemicarbazone]; "6-FNX", [1-(N)-fluoresceinyl naltrexone ...
V M, Kolb, A, Koman, L, Terenius
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Fluorescent probes for detecting cysteine
Methods and Applications in Fluorescence, 2018Cysteine plays a crucial role in physiological processes. Therefore, it is necessary to develop a method for detecting cysteine. Fluorimetry has the advantages of convenient detection, short response time, high sensitivity and good selectivity. In this review, fluorescent probes that detect cysteine over the past three years are summarized based on ...
Fanyong Yan +6 more
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