Accueil
Détail de l'indexation
Ouvrages de la bibliothèque en indexation 667.2
Ajouter le résultat dans votre panier Affiner la recherche
Synthesis and application of novel tricyanofuran hydrazone dyes as sensors for detection of microbes / Tawfik A. Khattab in COLORATION TECHNOLOGY, Vol. 132, N° 6 (12/2016)
[article]
Titre : Synthesis and application of novel tricyanofuran hydrazone dyes as sensors for detection of microbes Type de document : texte imprimé Auteurs : Tawfik A. Khattab, Auteur ; Hatem E. Gaffer, Auteur Année de publication : 2016 Article en page(s) : p. 460-465 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bactéries
Capteurs optiques
Chromophores
Colorants -- Synthèse
Indicateurs biologiques
pHIndex. décimale : 667.2 Colorants et pigments Résumé : Acknowledging the need to develop rapid and sensitive bacterial recognition approaches, we functionalised the tricyanofuran hydrazone molecular switch. Of significant interest in relation to the synthesised hydrazones is the formation of two different conjugated structures upon exposure to different pH values. Many bacteria release ammonia gas, which alkalises environments. Herein we report the synthesis of a tricyanofuran hydrazone having the function of a colorimetric pH sensor. The UV-visible absorption and fluorescence spectra exhibit reversible colour changes of the tricyanofuran hydrazone solution in acetonitrile under acid–base conditions. Our results indicate that the tricyanofuran hydrazone probe can identify the bacterial targets quickly with high sensitivity. The infected samples exhibit a significant colour change from orange to blue and in the mean time there is a decrease in fluorescence emission as a function of ammonia and volatile amines released from bacterial metabolites. This tricyanofuran hydrazone chromophore is proposed for use in food packaging with a pH-sensing capability. Note de contenu : - EXPERIMENTAL : Materials and methods - pH control for sensor testing in solution - Preparation of bacterial samples - Synthetic approaches
- RESULTS AND DISCUSSION : Synthesis and characterisation - Molecular switching of TCFH in solution - Bacterial sample testingDOI : 10.1111/cote.12233 En ligne : https://drive.google.com/file/d/1Tt7zliB0bKHLFHepUNJCnr0PTHplDDlN/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27283
in COLORATION TECHNOLOGY > Vol. 132, N° 6 (12/2016) . - p. 460-465[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 18506 - Périodique Bibliothèque principale Documentaires Disponible Synthesis and characterisation of surface-treated barium sulphate extender pigment in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 198, N° 4531 (12/2008)
[article]
Titre : Synthesis and characterisation of surface-treated barium sulphate extender pigment : Development a novel pigment for architectural and industrial coatings applications Type de document : texte imprimé Année de publication : 2008 Article en page(s) : p. 32-34 Langues : Anglais (eng) Catégories : Caractérisation
Charges (matériaux)
Oxyde de fer
Pigments -- Synthèse
Pigments métalliques
Revêtement mural:Peinture murale
Revêtements en bâtiment:Peinture en bâtiment
Sulfate de baryumIndex. décimale : 667.2 Colorants et pigments Résumé : This paper deals with treatment of barium sulphate extender pigment with iron oxide, which can be used in different architectural and industrial coatings. By deposing a ferric oxide layer on barium sulphate particles a novel pigment with better opticaland functional performance can be obtained. When used in various coating systems, this pigment improves physicochemical performance and acts as an active barrier. This paper discusses the experimental techniques of surface treatment along with an instrumental analysis using scanning electron micoscopy (SEM), EDAX and XRD etc. En ligne : https://drive.google.com/file/d/1w4iIeCfN2t7s4SqoIb4gmSeBQceq2dng/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3410
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 198, N° 4531 (12/2008) . - p. 32-34[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 010971 - Périodique Bibliothèque principale Documentaires Disponible Synthesis and deposition of bismuth oxychloride with a rose-type flower shape and photoelectroactivity evaluation in the methyl orange discoloration reaction / Marcelo Rodrigues da Silva Pelissari in COLORATION TECHNOLOGY, Vol. 139, N° 6 (12/2023)
[article]
Titre : Synthesis and deposition of bismuth oxychloride with a rose-type flower shape and photoelectroactivity evaluation in the methyl orange discoloration reaction Type de document : texte imprimé Auteurs : Marcelo Rodrigues da Silva Pelissari, Auteur ; Luan Pereira Camargo, Auteur ; Fenelon Martinho Lima Pontes, Auteur ; Luiz Henrique Dall'Antonia, Auteur Année de publication : 2023 Article en page(s) : p. 742-757 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
Composés inorganiques -- Synthèse
Conductimétrie
Décoloration
Orange méthylique
Oxychlorure de bismuth
Photoélectrochimie
Rayonnement ultravioletIndex. décimale : 667.2 Colorants et pigments Résumé : In this work, bismuth oxychloride with a rose-type flower shape was successfully synthesised using the easy and low-cost successive ionic layer adsorption and reaction process. The tetragonal crystalline structure with a flower-like shape and thickness of 150-nm nanosheets was used as electrode material in an exciting approach for the photoelectrochemical discoloration reaction of methyl orange. The structure, morphology and optical properties of the obtained bismuth oxychloride sample were evaluated through X-ray diffraction, Raman spectroscopy, the Brunauer–Emmett–Teller method, diffuse reflectance ultraviolet–visible spectroscopy and scanning electron microscopy. Through photoelectrochemical characterisation measurements (linear sweep voltammetry, chronoamperometry and electrochemical impedance spectroscopy techniques), the bismuth oxychloride electrode showed remarkable electroactivity under ultraviolet light irradiation. The methyl orange discoloration reaction, performed under ultraviolet light incidence and potential application of −0.5 V (vs silver/silver chloride) for 60 minutes, produced a higher degradation percentage (ca. 82%) and kobs of 29 × 10−3 min−1. Note de contenu : - EXPERIMENTAL : Materials and reagents - Synthesis of bismuth oxychloride powder - Deposition of bismuth oxychloride film - Physical characterisation - Photoelectrochemical measurements
- RESULTS AND DISCUSSION : Physical characterisation - Photoelectrochemical characterisation - Evaluation of MO discoloration reaction
- Table 1 : Physical parameters obtained by the nitrogen adsorption–desorption process, and band gap energy (Egap) of bismuth oxychloride material
- Table 2 : Electrochemical parameters obtained from the fluorine-doped tin oxide/bismuth oxychloride electrode
- Table 3 : Kinetics parameters of the MO dye photoelectrocatalytic discoloration reaction (0.1 mmol L−1 in 0.1 mol L−1 Na2SO4), with the FTO/BiOCl electrode, obtained by the SILAR process. Measurements were performed in either the absence or presence of UV light and different applied potentials (vs Ag/AgCl) for 60 minutesDOI : https://doi.org/10.1111/cote.12685 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12685 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40124
in COLORATION TECHNOLOGY > Vol. 139, N° 6 (12/2023) . - p. 742-757[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 24320 - Périodique Bibliothèque principale Documentaires Disponible Synthesis and fluorescence properties of novel benzoxazole- and chromone-functionalised bis(arylvinylene)imidazoles / Yi-Feng Sun in COLORATION TECHNOLOGY, Vol. 128, N° 4 (2012)
[article]
Titre : Synthesis and fluorescence properties of novel benzoxazole- and chromone-functionalised bis(arylvinylene)imidazoles Type de document : texte imprimé Auteurs : Yi-Feng Sun, Auteur ; Liu Zhong, Auteur ; Xian-Ming Hou, Auteur ; Shi-Ying Ma, Auteur ; Wen-Zeng Duan, Auteur ; Ren-Tao Wu, Auteur Année de publication : 2012 Article en page(s) : p. 331-339 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants -- Synthèse
FluorescenceIndex. décimale : 667.2 Colorants et pigments Résumé : Novel benzoxazole- and chromone-functionalised bis(arylvinylene)imidazoles were synthesised and characterised by proton nuclear magnetic resonance, Fourier Transform–infrared, mass spectrometry and elemental analyses. These dyes were found to exhibit two quite different types of fluorescence behaviour in the alkali examined; i.e. fluorescence quenching for the benzoxazole–imidazole hybrids and fluorescence enhancement for the chromone–imidazole hybrids. The benzoxazole-based imidazoles emit intense green fluorescence, but the fluorescence is remarkably quenched upon addition of alkali. Such a process can be reversibly controlled by simple deprotonation/protonation of the imidazole group; thus, they exhibit efficient fluorescence on/off switchable behaviour. In contrast, significant fluorescence enhancement is observed for the chromone–imidazole hybrids in the presence of alkali. Without alkali, these imidazole dyes are very weakly fluorescent, whereas the addition of alkali leads to an appearance of strong blue fluorescence and a dramatic increase of emission intensity. Note de contenu : - EXPERIMENTAL : General - Synthesis of the 1,6-diaryl-hexa-1,5-diene-3,4-dione compounds - Synthesis of the functionalised bys(arylvinylene)imidazoles - X-ray crystallography
- RESULTS AND DISCUSSION : Synthesis and characterisation - UV-vis absorption spectra - Fluorescence switching of benzoxazole-functionalised bis(arylvinylene)imidazoles (2a, 2b) - Fluorescence emission enhancement of chromone-functionalised bis(arylvinylene)imidazoles (2c, 2d)DOI : 10.1111/j.1478-4408.2012.00385.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2012.00385.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15683
in COLORATION TECHNOLOGY > Vol. 128, N° 4 (2012) . - p. 331-339[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 14081 - Périodique Bibliothèque principale Documentaires Disponible Synthesis and photophysical properties of meso-aminophenyl-substituted heptamethine dyes as potential leads to new contrast agents / Okoh Okoh Adeyi in COLORATION TECHNOLOGY, Vol. 135, N° 4 (08/2019)
[article]
Titre : Synthesis and photophysical properties of meso-aminophenyl-substituted heptamethine dyes as potential leads to new contrast agents Type de document : texte imprimé Auteurs : Okoh Okoh Adeyi, Auteur ; Megan E. Critchley, Auteur ; Roger H. Bisby, Auteur ; Clare L. Lawrence, Auteur ; Mark Wainwright, Auteur ; Robert B. Smith, Auteur Année de publication : 2019 Article en page(s) : p. 305-311 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants -- Synthèse
Fluorescence
HeptaméthineIndex. décimale : 667.2 Colorants et pigments Résumé : The series of rigid meso‐aminophenyl‐substituted heptamethine dyes presented herein exhibit surprising fluorescence properties, demonstrating larger Stokes shifts when compared with both structurally similar rigid meso‐chlorophenyl and linear heptamethine dyes. Based on their photophysical properties, these are of considerable importance to the development of contrast agents, within biology and medicine. DOI : 10.1111/cote.12403 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12403 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32833
in COLORATION TECHNOLOGY > Vol. 135, N° 4 (08/2019) . - p. 305-311[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 21090 - Périodique Bibliothèque principale Documentaires Disponible Synthesis and properties of poly(styrene-co-maleic acid) macromolecular reactive dyes / Fuchun Wang in COLORATION TECHNOLOGY, Vol. 139, N° 1 (02/2023)
PermalinkSynthesis of yellow pyridonylazo colorants and their application in dye-pigment hybrid colour filters for liquid crystal display / Jong Min Park in COLORATION TECHNOLOGY, Vol. 133, N° 2 (04/2017)
PermalinkSynthesis, properties, and application of new benzothiazole-based sensitisers in polymer chemistry / Janina Kabatc in COLORATION TECHNOLOGY, Vol. 131, N° 3 (06/2015)
PermalinkTailor-made pigments / Hendrik Kathrein in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 197, N° 4517 (10/2007)
PermalinkTeamwork brings innovative effect pigments to light / Rüdiger Iden in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 67, N° 843 (04/1995)
PermalinkTechnology review : effect coatings / Sandy Morrison in SURFACE COATINGS INTERNATIONAL, Vol. 92, 2 (03/2009)
PermalinkLa Teinture du papier / Jürgen Kopp / Leverkusen [Allemagne] : Bayer (1984)
PermalinkTemperature tolerant blue pigment / Mas Subramanian in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 205, N° 4610 (07/2015)
PermalinkThe basics of titanium dioxide dispersion / Brian Noble in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 208, N° 4643 (08/2018)
PermalinkThe basics of titanium dioxide dispersion / Brian Noble in SURFACE COATINGS INTERNATIONAL, Vol. 102.5 (10-11/2019)
PermalinkThe best for red and yellow / Frank Kleinsteinberg in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 210, N° 4663 (08/2020)
PermalinkThe chemistry and Physics of organic pigments / Lyade S. Pratt / New York [Etats-Unis] : John Wiley & Sons (1947)
PermalinkThe light fantastic / Jürgen Patzlaff in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 196, N° 4502 (07/2006)
PermalinkThe liquid metal look / Wei Liu in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 197, N° 4510 (03/2007)
PermalinkThe release of the blue biological pigment C-phycocyanin through calcium-aided cytolysis of live Spirulina sp. / Robert W. M. Pott in COLORATION TECHNOLOGY, Vol. 135, N° 1 (02/2019)
Permalink