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3,748 Newest Publications about the topic dyes

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EuroTracker[registered sign] dyes: design, synthesis, structure and photophysical properties of very bright europium complexes and their use in bioassays and cellular optical imaging

28-Oct-2014 | Stephen J. Butler; Martina Delbianco; Laurent Lamarque; Brian K. McMahon; Emily R. Neil; Robert Pal; David Parker; J ..., Dalton Transactions, 2014

The development of the brightest luminescent europium(iii) complexes is traced, including analysis of the C3-symmetric core complex based on a functionalized triazacyclononane and identification of the most suitable strongly absorbing chromophore. Strategies for the synthesis of the complexes, ...

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Cosensitizers for simultaneous filling up both absorption valleys of porphyrins: a novel approach for developing efficient panchromatic dye-sensitized solar cells

28-Oct-2014 | Xi Sun; Yueqiang Wang; Xin Li; Hans Agren; Weihong Zhu; He Tian; Yongshu Xie, Chemical Communication, 2014

XS1–XS3 have been synthesized by introducing an auxiliary acceptor to D-π-A dyes for simultaneous filling up both absorption valleys of porphyrin dyes around 550 and 380 nm. Thus, panchromatic DSSCs with the highest efficiency of 10.75% were achieved by cosensitization. This work provides a ...

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Magnetic nanosized calcium ferrite particles for efficient degradation of crystal violet using microwave‐induced catalytic method: Insight into the degradation pathway

27-Oct-2014 | Wen Shi, Qi Li, Shuai An, Tingting Zhang, Lei Zhang, Journal of Chemical Technology & Biotechnology, 2014

Abstract Background Magnetic iron based catalysts with high oxidation performance are generally effective for many catalytic reactions and can be magnetically recovered after application, showing advantages than other metal oxides. In this article, a high active nanosized CaFe2O4 was ...

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Oxidative Metalation as a Route to Size‐Mismatched Macrocyclic Complexes: Osmium Corroles

24-Oct-2014 | Abraham B. Alemayehu, Kevin J. Gagnon, James Terner, Abhik Ghosh, Angewandte Chemie International Edition, 2014

Abstract Heavy‐element corroles are of great interest as optical sensors, near‐IR dyes, phosphors, organic light‐emitting diodes, and anticancer compounds. Insertion of 5d metals into corroles, however, is often a difficult and unpredictable process. Against this backdrop, oxidative metalation ...

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IJMS, Vol. 15, Pages 19239-19252: Heparin Assisted Photochemical Synthesis of Gold Nanoparticles and Their Performance as SERS Substrates

23-Oct-2014 | del Pilar Rodríguez-Torres, Maria ; Díaz-Torres, Luis Armando; Romero-Servin, Sergio, International Journal of Molecular Sciences, 2014

Reactive and pharmaceutical-grade heparins were used as biologically compatible reducing and stabilizing agents to photochemically synthesize colloidal gold nanoparticles. Aggregates and anisotropic shapes were obtained photochemically under UV black-light lamp irradiation (λ = 366 nm). ...

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A Nanoplasmonic‐Fluorescent Ruler for Detection of Site‐Specific Protein Binding to Composite DNA of Multiple Sites

22-Oct-2014 | Steven Lukman, Laura Sutarlie, Ning Li, Xiaodi Su, Particle & Particle Systems Characterization, 2014

A gold or silver nanoparticles (AuNPs and AgNPs)‐supported fluorescent intercalator displacement (FID) assay, termed nanoplasmonic‐fluorescent ruler, for site‐specific detection of protein binding to composite DNA of multiple sites is constructed. A 20 nm, 100 nm AuNPs, or 80 nm AgNPs is ...

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Silicon-substituted xanthene dyes and their applications to bioimaging

21-Oct-2014 | Yu Kushida; Tetsuo Nagano; kenjiro Hanaoka, Analyst, 2014

Fluorescence imaging is one of the most powerful techniques for visualizing temporal and spatial changes of biological phenomena in living cells, and many fluorescence probes have been developed. In particular, xanthene dyes such as fluorescein and rhodamines have favorable characteristics, such ...

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Cucurbiturils: from synthesis to high-affinity binding and catalysis

21-Oct-2014 | Khaleel I. Assaf; Werner M. Nau, Chemical Society Reviews, 2014

In the wide area of supramolecular chemistry, cucurbit[n]urils (CBn) present themselves as a young family of molecular containers, able to form stable complexes with various guests, including drug molecules, amino acids and peptides, saccharides, dyes, hydrocarbons, perfluorinated hydrocarbons, ...

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Highly selective transfer hydrogenation of functionalised nitroarenes using cobalt-based nanocatalysts

21-Oct-2014 | Rajenahally V. Jagadeesh; Debasis Banerjee; Percia Beatrice Arockiam; Henrik Junge; Kathrin Junge; Marga-Martina Poh ..., Green Chemistry, 2014

Anilines are important feedstock for the synthesis of a variety of chemicals such as dyes, pigments, pharmaceuticals and agrochemicals. The chemoselective catalytic reduction of nitro compounds represents the most important and prevalent process for the manufacture of functionalized anilines. ...

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Spectrally Matched Duplexed Nucleic Acid Bioassay Using Two-Colors from a Single Form of Upconversion Nanoparticle

20-Oct-2014 | Feng Zhou; Ulrich J. Krull, Analytical Chemistry, 2014

Optical sensing can provide opportunity for simultaneous determination of multiple targets as well as for implementation of ratiometric methods that can improve accuracy and precision. Herein we report a paper-based two-color oligonucleotide detection assay with tunable sensitivity that is based ...

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