• 5 has been isolated as two not yet described conformational isomers) featuring two directly lower rim attached dansyl moieties besides other lower or upper rim site substituents have been synthesized and investigated with reference to their fluorescence properties including potential sensing capability for metal ions. (lincoln.ac.uk)
  • Except for the nitro substituted compound 7, which showed a moderate fluorescence quenching on the addition of Hg2+ in acetonitrile, the calixarenes 2-6 were found to selectively recognize Cu2+ in the 10(-6) mol L(-1) concentration range detectable by the nearly total quenching of their intrinsic fluorescence. (lincoln.ac.uk)
  • What are some compounds that do fluorescence but not phosphorescence, phosphorescence but not fluorescence, and do both? (stackexchange.com)
  • Because galactose oxidase-mediated oxidation liberates a molecule of hydrogen peroxide for each molecule of aldehyde that is formed ( Figure 3.3.2 ), horseradish peroxidase-catalyzed oxidation of the Amplex Red reagent to red-fluorescent resorufin by hydrogen peroxide provides a ready means by which the number of aldehyde residues introduced into a biomolecule, including on a cell surface, can be quantitated. (thermofisher.com)
  • For example, the tricarboxylic acid (TCA) cycle, which is the principal energy-producing process in cells, involves nine carboxylic acid compounds. (encyclopedia.pub)
  • Chemodosimeters, complexes that undergo irreversible reactions with other species upon binding a metal to form new compounds with novel fluorescent spectra. (wikipedia.org)
  • Friedel, R. A. and M. Orchin (1951) Ultraviolet Spectra of Aromatic Compounds. (photochemcad.com)
  • Hirayama, K. (1967) Handbook of Ultraviolet and Visible Absorption Spectra of Organic Compounds. (photochemcad.com)
  • The mass spectra for these compounds provide specific structural information for the identification of these compounds. (erowid.org)
  • periodate-oxidized ribonucleotides can subsequently be converted to fluorescent nucleic acid probes by reaction with fluorescent hydrazines, hydroxylamines and amines. (thermofisher.com)
  • These introduced aldehydes and ketones can then be modified with fluorescent or biotinylated hydrazine, hydroxylamine or amine derivatives to label the polysaccharide or glycoprotein. (thermofisher.com)
  • Carboxyl-bearing low-molecular-weight compounds such as keto acids, fatty acids, and other organic acids are involved in a myriad of metabolic pathways owing to their high polarity and solubility in biological fluids. (encyclopedia.pub)
  • Although many types exist, most small molecule sensors comprise a subunit that selectively binds to a metal that in turn induces a change in a fluorescent subunit. (wikipedia.org)
  • Most detection mechanisms involved in small molecule sensors comprise some modulation in the fluorescent behavior of the sensing molecule upon binding the target metal. (wikipedia.org)
  • Quinoline based sensors have been developed that form luminescent complexes with Cd(II) and fluorescent ones with Zn(II). (wikipedia.org)
  • When a metal coordinates to such a sensor, it may either enhance or reduce the original fluorescent emission. (wikipedia.org)
  • By changing the intensity of emission at different wavelengths, the resulting fluorescent spectrum may attenuate, amplify, or shift upon the binding and dissociation of a metal. (wikipedia.org)
  • This tandem fluorochrome is comprised of a fluorescent protein complex (PerCP) with an excitation maximum (Ex Max) of 482 nm and an acceptor dye with an emission maximum (Em Max) at 676 nm. (bdbiosciences.com)
  • Compound 4a interfered with paclitaxel enhancement of tubulin polymerization, suggesting microtubules as the site of action. (bvsalud.org)
  • The ultraviolet absorption properties of these compounds are determined by the methylenedioxyphenyl ring, which shows major absorption bands in the 285- and 235-nm range. (erowid.org)
  • DMS, UV Atlas of Organic Compounds. (photochemcad.com)
  • CRC Atlas of Spectral Data and Physical Constants for Organic Compounds. (photochemcad.com)
  • It can modify a variety of drugs, such as protein drugs, peptide compounds, organic small molecule drugs and so on. (bocsci.com)
  • 1963) Tables of Spectrophotometric Absorption Data of Compounds Used for the Colorimetric Determination of Elements. (photochemcad.com)
  • Compounds of the HMDA series have UV absorption properties similar to the MDAs because both series contain the same 3,4-methylenedioxyphenyl chromophore. (erowid.org)
  • Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing. (bdbiosciences.com)
  • Therefore, the quantification of such compounds provides useful information pertaining to diagnosis, pathological conditions, and disease mechanisms, spurring the development of numerous analytical methods for this purpose. (encyclopedia.pub)
  • The analytical properties of these compounds are compared with the structurally similar 3,4-methylenedioxyamphetamine (MDA) derivatives, a popular series of drugs of abuse. (erowid.org)
  • Different probes exist for a variety of applications, each with different dissociation constants with respect to a particular metal, different fluorescent properties, and sensitivities. (wikipedia.org)
  • This has novel fluorescent properties. (wikipedia.org)
  • This mouse IgG2b, κ isotype control is a monoclonal antibody, clone 27-35, that is specific for the dansyl (5-[dimethylamino] naphthalene-1-sulfonyl) hapten. (bdbiosciences.com)
  • Calix[4]arenes featuring a direct lower rim attachment of dansyl groups. (lincoln.ac.uk)
  • In this paper we also present the first crystal structures of dansylated calixarenes having the dansyl groups directly attached to the lower rim site. (lincoln.ac.uk)
  • There are numerous classes of low-molecular-weight compounds, and they are categorized based on their functional groups, including amine, thiol, and carboxylic groups. (encyclopedia.pub)
  • The dansyl (DNS) hapten is not expressed on human cells or human cell lines. (bdbiosciences.com)
  • Further, they should provide a response with a strong modulation in fluorescent spectrum and hence provide a high signal-to-noise ratio. (wikipedia.org)
  • My colleague detected fluorescent contamination likely from salicylic acid in some water samples. (stackexchange.com)
  • To unravel the role of specific residues during the fibril assembly process, we prepared single-Cys mutants in the disordered (G7C and Y136C) and proximal (V26C and L100C) fibril core sites and derivatized them with environmentally sensitive dansyl (Dns) fluorophores. (nih.gov)
  • Hydration of poly(N-isopropylacrylamide) brushes on silica micro-beads was investigated using a fluorescent probe method. (elsevierpure.com)
  • In this report, imidazoanthraquinone-triarylamines fluorescent probe have examined for their coordination behaviour against tetrabutylammonium (TBA) salts of various anions in DMSO solvent. (pcbiochemres.com)
  • This red fluorescent phalloidin conjugate is a high-affinity probe for F-actins. (aatbio.com)
  • Saugata Sahu, Pulak Karan, and Ashok Kumar Mishra (2021)"Nature of Saccharide-Induced F127 Micellar Dehydration: An Insight with FDAPT (2-Formyl-5-(4′-N,N-dimethylaminophenyl)thiophene), a Multiparametric Fluorescent Probe", Langmuir, 37, 3067 - 3074. (akm-research-group.in)
  • Concentration-dependent emission wavelength and intensity revealed a higher concentration of water for the cyclic compound. (bepress.com)
  • Both compounds were shown by the red-edge excitation shift (REES) to be located near the membrane/water interface at low concentrations, but the cyclic trimer was better able to migrate into the hydrophobic core of the membrane than the linear trimer. (bepress.com)
  • Fluorescent quenching by a water-soluble (NaI) and a lipid-soluble (TEMPO) quencher indicated that the cyclic trimer penetrated into the hydrophobic region of the membrane more readily than the linear trimer, which preferred to stay close to the membrane surface. (bepress.com)
  • In so doing it switches between a colorless, non-fluorescent spirocyclic form to a fluorescent, pink open cyclic form. (wikipedia.org)
  • 6] C. Saravanan, S. Easwaramoorthi, C. Y. Hsiow, K. Wang, M. Hayashi, L. Wang, Benzoselenadiazole Fluorescent Probes-Near-IR Optical and Ratiometric Fluorescence Sensor for Fluoride Ion. (pcbiochemres.com)
  • Different probes exist for a variety of applications, each with different dissociation constants with respect to a particular metal, different fluorescent properties, and sensitivities. (wikipedia.org)
  • We have now determined the relative HSA-binding affinities for a group of LC-PCBs and their hydroxylated and sulfated derivatives by selective displacement of the fluorescent probes 5-dimethylamino-1-naphthalenesulfonamide and dansyl-l-proline from the two major drug-binding sites on HSA (previously designated as Site I and Site II). (nih.gov)
  • When a metal coordinates to such a sensor, it may either enhance or reduce the original fluorescent emission. (wikipedia.org)
  • By changing the intensity of emission at different wavelengths, the resulting fluorescent spectrum may attenuate, amplify, or shift upon the binding and dissociation of a metal. (wikipedia.org)
  • A macrocyclic and a linear trimer of a facially amphiphilic cholate building block were labeled with a fluorescent dansyl group. (bepress.com)
  • The free ends, the bottom, and the random of brushes were labeled with dansyl group. (elsevierpure.com)
  • The presence of chloronitrile compounds in drinking waters is indicated to arise from reactions of chlorine or chloramine to amine/amide functions in amino acids or proteinaceous materials, followed by dehydrohalogenation. (nih.gov)
  • One of the advantages of GC-MS is that the identification is based on both a retention time and a mass spectrum (a compounds' specific fragmentation pattern). (metabolomicscentre.ca)
  • Compounds produce reproducible fragmentation patterns when ionized by a fixed electron voltage (usually 70eV) making the technique particularly valuable for identification and quantification for small molecules as it means it is instrument independent and allows databases to be created and shared between users. (metabolomicscentre.ca)
  • Identification of a Novel Indoline Derivative for in Vivo Fluorescent Imaging of Blood-Brain Barrier Disruption in Animal Models. (zqsp-mie-u.org)
  • The fluorescent data corroborated with the previous leakage assays that suggested the stacking of the macrocyclic cholate trimer into transmembrane nanopores, driven by the strong associative interactions of water molecules inside the macrocycles in a nonpolar environment. (bepress.com)
  • 1963) Tables of Spectrophotometric Absorption Data of Compounds Used for the Colorimetric Determination of Elements. (photochemcad.com)
  • CRC Atlas of Spectral Data and Physical Constants for Organic Compounds. (photochemcad.com)
  • Nuclear Magnetic Resonance (NMR) is a powerful spectroscopic technique that measures the absorption of radiofrequency radiation by different nuclei (within a chemical compound) when that compound is placed under a strong magnetic field. (metabolomicscentre.ca)
  • We develop new chemical approaches for organic synthesis and medicinal chemistry to generate naturally occurring alkaloids and drug-like compounds. (iacs.res.in)
  • Further, they should provide a response with a strong modulation in fluorescent spectrum and hence provide a high signal-to-noise ratio. (wikipedia.org)
  • The hydrophilic PEG chain increases the water solubility of the compound in aqueous media. (bocsci.com)