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Thiocarbazone-appended coumarin : An easily accessible ratiometric fluorescent chemosensor for multianalyte (Zn2+ and Cu2+) systems / Mu-Xuan Lv in COLORATION TECHNOLOGY, Vol. 138, N° 2 (04/2022)
[article]
Titre : Thiocarbazone-appended coumarin : An easily accessible ratiometric fluorescent chemosensor for multianalyte (Zn2+ and Cu2+) systems Type de document : texte imprimé Auteurs : Mu-Xuan Lv, Auteur ; Lin-Yan Bian, Auteur ; Wei-Na Wu, Auteur ; Zhi-Hong Xu, Auteur ; Yuan Wang, Auteur ; Xiao-Lei Zhao, Auteur ; Zhou-Qing Xu, Auteur ; Yun-Chang Fan, Auteur ; Ling-Ling Yan, Auteur Année de publication : 2022 Article en page(s) : p. 157-167 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Capteurs chimiques
Composés organiques -- Synthèse
Coumarine -- Composés
Fluorescence
Ions cuivre
Ions zinc
Sondes fluorescentesIndex. décimale : 667.2 Colorants et pigments Résumé : A simple thiocarbazone-appended coumarin derivative 1 with high selectivity as a ratiometric fluorescence sensor towards Cu2+ and Zn2+ in a semi-aqueous solution was synthesised and characterised. Upon the addition of Cu2+ and Zn2+, the emission of 1 solution undergoes a blue and red shift to 480 and 545 nm according to the intense blue and yellow colour under a 365-nm ultraviolet lamp, respectively. Binding was confirmed by ultraviolet-visible absorption analysis, fluorescence measurement, mass spectrometry, proton nuclear magnetic resonance, Fourier Transform-infrared spectroscopy and density functional theory calculation. The results show that 1 coordinated with Cu2+ and Zn2+ in different modes, resulting in different ratiometric fluorescence responses. The detection limits of the sensor 1 for Cu2+ and Zn2+ were 100.8 and 11.5 nM, respectively. The association constants (Ka) of Cu2+ and Zn2+ with 1 were determined to be 5.59 × 104 and 5.08 × 104 M−1, respectively. Fluorescent microscopy experiments demonstrated that probe 1 has the potential to be used to monitor Zn2+ and Cu2+ in living cells. Note de contenu : - EXPERIMENTAL : Materials and instrumentation - General ultraviolet-visible and fluorescence spectra measurements - Tynthesis of 1
- RESULTS AND DISCUSSION : Fluorescent selectivity of 1 to Cu2+/Zn2+ - Investigation of the sensing mechanism - Detection of Cu2+ and Zn2+ in water samples - Fluorescence imaging of intercellular Cu2+ and Zn2+
- Table 1 : Some coumarin-containing fluorescent probes for Cu2+ or Zn2+ in the past few years
- Table 2 : Determination of CU2+/Zn2+ in water samples (n = 3)DOI : https://doi.org/10.1111/cote.12579 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12579 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37846
in COLORATION TECHNOLOGY > Vol. 138, N° 2 (04/2022) . - p. 157-167[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23518 - Périodique Bibliothèque principale Documentaires Disponible TiO2 efficiency in coatings : products and techniques for opacity optimisation / Paul Dietz in SURFACE COATINGS INTERNATIONAL, Vol. 100.1 (02-03/2017)
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Titre : TiO2 efficiency in coatings : products and techniques for opacity optimisation Type de document : texte imprimé Auteurs : Paul Dietz, Auteur Année de publication : 2017 Article en page(s) : p. 35-40 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Dioxyde de titane
Opacité (optique)
Pigments inorganiques
Revêtements:PeintureIndex. décimale : 667.2 Colorants et pigments Résumé : For those who have been in the coatings industry long enough, the rollercoaster ride of TiO2 price comes as no surprise. That said, the days of an even 10-year cycle in price have changed to shorter periods of high price (often painfully high) followed by longer periods of relatively low price (painful for the suppliers). Even when relatively "cheap", TiO2 continues to be one of the most expensive raw materials in a coating, so ensuring that the pigments is used correctly and efficiently remains a crucial business objective. Note de contenu : - TiO2 selection
- Pigment dispersion : Solvent systems - Water-based systems - The role of pH and surface charge - Dispersants and dispersant requirements - Physical dispersion
- Cost-effective opacity
- Engineered composite technology -FP-pigments' opacity pigment
- FIGURES : 1. Relative undertone of TiO2 pigments due to pigment crystal size - 2. Example of a mobility curve for an alumina/zirconia treated TiO2 pigment - 3. Effect of pH on dispersion - 4. Dispersant demand curves for anionic and steric stabilisers - 5. Dispersant demand determination for two dispersants - 6. Dispermat dissolver used at FP-pigments - 7. Pigment flocculation due to soluble salt concentration - 8. Pigment flocculation and crowding upon drying - 9. Schematic of pigment crowding by entenders - 10. SEM and schematic representation of FP-pigments' opacity pigment - 11. Typical performance of the FP-460 opacity pigment in a German DIY matt paint - 12. Comparison of loose blend with composite product - 13. Reduction of the "window" effect when using FP-pigment's composite compared to comparable sized extender
- TABLES : 1. Points to consider when choosing your TiO2 - 2. Means of achieving cost-effective opacity in coatingsEn ligne : https://drive.google.com/file/d/1Wnzg20hQEquT9UG1HXiBkh-svIszwnnn/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28282
in SURFACE COATINGS INTERNATIONAL > Vol. 100.1 (02-03/2017) . - p. 35-40[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18810 - Périodique Bibliothèque principale Documentaires Disponible TiO2 efficiency in coatings : products and techniques for opacity optimisation in PAINTINDIA, Vol. LXVII, N° 5 (05/2017)
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Titre : TiO2 efficiency in coatings : products and techniques for opacity optimisation Type de document : texte imprimé Année de publication : 2017 Article en page(s) : p. 76-88 Langues : Anglais (eng) Catégories : Agents dispersants (chimie)
Dioxyde de titane
Dispersions et suspensions
Opacité (optique)
pH
Revêtement en phase solvant:Peinture en phase solvant
Revêtements en phase aqueuse:Peinture en phase aqueuseIndex. décimale : 667.2 Colorants et pigments Résumé : For those who have been in the Coatings industry for long enough, the rollercoaster ride of TiO2 price comes as no surprise. That said, the days of an even 10-year cycle in price have changed to shorter periods of high price (often painfully high) followed by longer periods of relatively low price (painful for the suppliers). Even when relatively "cheap", TiO, continues to be one of the most expensive raw materials in a coating and so ensuring that the pigment you buy is used correctly and efficiently remains a crucial business objective. Note de contenu : - TiO2 selection
- Pigment dispersion
- Solvent systems
- Water-based systems
- The role of pH and surface charge
- Dispersants and dispersant requirements
- Physical dispersion
- Pigment crowding and spacing
- Cost effective opacity
- Engineered composite technology - FP-pigment "opacity pigment"En ligne : https://drive.google.com/file/d/1jj19-Tjh-qx8uoIt1WgLXgMjEY7PLaor/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28874
in PAINTINDIA > Vol. LXVII, N° 5 (05/2017) . - p. 76-88[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19144 - Périodique Bibliothèque principale Documentaires Disponible Titanium dioxide / Jochen Winkler / Hannover [Germany] : Vincentz Network GmbH & Co. (2003)
Titre : Titanium dioxide Type de document : texte imprimé Auteurs : Jochen Winkler, Auteur Editeur : Hannover [Germany] : Vincentz Network GmbH & Co. Année de publication : 2003 Collection : European Coatings Literature Importance : 128 p. Présentation : ill. Format : 23 cm ISBN/ISSN/EAN : 978-3-87870-148-4 Prix : 89 E Note générale : Index - Bibliogr. Langues : Anglais (eng) Catégories : Dioxyde de titane Index. décimale : 667.2 Colorants et pigments Note de contenu : - Physical, chemical and toxicological properties of titanium dioxide
- Production of titanium dioxide pigments
- Optical properties of titanium dioxide pigments
- Photocatalytic properties of titanium dioxide
- Dispersing of titanium dioxide
- Nano titanium dioxide
- Titanium dioxide in catalysis
- Titanium dioxide in photovoltaic cellsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7323 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 2768 667.2 WIN Monographie Bibliothèque principale Documentaires Disponible Titanium dioxide grafted with silane coupling agents and its use in blue light curing ink / Lili Wang in COLORATION TECHNOLOGY, Vol. 136, N° 1 (02/2020)
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Titre : Titanium dioxide grafted with silane coupling agents and its use in blue light curing ink Type de document : texte imprimé Auteurs : Lili Wang, Auteur ; Xiaying Jiang, Auteur ; Chenglong Wang, Auteur ; Yi Huang, Auteur ; Yiding Meng, Auteur ; Jianzhong Shao, Auteur Année de publication : 2020 Article en page(s) : p. 15-22 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Angle de contact
Bleu (couleur)
Caractérisation
Dioxyde de titane
Dispersions et suspensions -- Stabilité
Encre
Encre -- Propriétés mécaniques
Fourier, Spectroscopie infrarouge à transformée de
Granulométrie
Greffage (chimie)
Photoréticulation
Réaction de couplage
Rhéologie
Silanes
ThermogravimétrieIndex. décimale : 667.2 Colorants et pigments Résumé : To improve the properties of titanium dioxide particles and realise their firm anchorage in blue light curing film, three modified titanium dioxide particles were prepared by grafting 3-(trimethoxysilyl)propyl methacrylate, 3-aminopropyltriethoxysilane and hexadecyltrimethoxysilane. The surface changes of titanium dioxide particles after modification were characterised. The dispersion stability, photo-polymerisation, rheological and mechanical properties of modified titanium dioxide blue light curing inks were investigated. Results showed that compared with native titanium dioxide, modified titanium dioxide particles were more appropriate for blue light curing ink. The particle sizes of the three modified titanium dioxide particles became smaller, their surfaces exhibited hydrophobicity, and the viscosity of the modified titanium dioxide inks decreased slightly. Of the three modified titanium dioxide particles, 3-(trimethoxysilyl)propyl methacrylate- and hexadecyltrimethoxysilane-modified titanium dioxide particles exhibited better dispersion stability in blue light curing ink. In particular, 3-(trimethoxysilyl)propyl methacrylate-modified titanium dioxide blue light curing ink showed the best photo-polymerisation and mechanical properties, which indicated the participation of the pigment grafted by double bonds in the blue light curable polymerisation. Using modified titanium dioxide in blue light curing ink, the dry/wet rubbing fastness of the printed fabrics improved. Note de contenu : - EXPERIMENTAL : Materials - Grafting of silane coupling agent onto the surface of titanium dioxide particles - Preparation of blue light curing ink - Preparation of blue light curing - Characterisations
- RESULTS AND DISCUSSION : FT-IR spectroscopy of modified titanium dioxide - Thermogravimetric analysis of modified titanium dioxide - Elemental analysis of modified titanium dioxide - Particle size analysis of modified titanium dioxide - Contact angle analysis of modified titanium dioxide - Dispersion stability of modified titanium dioxide - Rheological porperties of modified titanium dioxide bluelight curing inkDOI : https://doi.org/10.1111/cote.12434 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12434 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33696
in COLORATION TECHNOLOGY > Vol. 136, N° 1 (02/2020) . - p. 15-22[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21546 - Périodique Bibliothèque principale Documentaires Disponible Titanium dioxide pigments / Michael Brock in EUROPEAN COATINGS JOURNAL (ECJ), N° 1-2/02 (01-02/2002)
PermalinkTitanium dioxide - a really cool pigment choice in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 205, N° 4612 (09/2015)
PermalinkTitanium dioxide - the struggle continues / Giuliana Beck in EUROPEAN COATINGS JOURNAL (ECJ), N° 12 (12/2022)
PermalinkPermalinkToutes les couleurs du bleu de prusse / Giulia Fornasieri in L'ACTUALITE CHIMIQUE, N° 444-445 (10-11/2019)
PermalinkLa transdisciplinarité ou l'art d'enseigner la chimie du bleu / Florence Boulc'h in L'ACTUALITE CHIMIQUE, N° 374 (05/2013)
PermalinkPermalinkUltramarine - the eternal pigment / Dave Masterson in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 200, N° 4550 (07/2010)
PermalinkUltrasonication for better pigment dispersion / Ashwani Upadhyay in PAINTINDIA, Vol. LXVII, N° 6 (06/2017)
PermalinkPermalinkVaseline treatment combined with a natural dye extract to enhance lip print contrast images / Titichaya Mebuathong in COLORATION TECHNOLOGY, Vol. 137, N° 4 (12/07/2021)
PermalinkVersatile flakes in decorative paints in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 204, N° 4595 (04/2014)
PermalinkVMP advantage / Nigel Unsworth in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 194, N° 4475 (04/2004)
PermalinkWeather-fast colours / Larry G. Lane in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 196, N° 4502 (07/2006)
PermalinkWettability study for pigmentary titanium dioxide / R. T. Abrahao in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 10, N° 6 (11/2013)
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