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Phosphorescent Polymeric Nanoparticles by Coordination Cross‐Linking as a Platform for Luminescence Imaging and Photodynamic Therapy

16-10-2014 | Yang Lu, Fengfeng Xue, Zhiguo Zhou, Min Shi, Yuping Yan, Lijie Qin, Hong Yang, Shiping Yang, Chemistry - A European Journal, 2014

Abstract Water‐soluble phosphorescent polymeric nanoparticles with an average diameter of approximately 100 nm were synthesized by a coordination cross‐linking reaction. The pyridine blocks in poly(4‐vinyl pyridine‐b‐ethylene oxide) (P4VP‐b‐PEO) were cross‐linked by the iridium ...

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A Crown Ether Decorated Dibenzocoronene Tetracarboxdiimide Chromophore: Synthesis, Sensing, and Self‐Organization

15-10-2014 | Yingjie Ma, Tomasz Marszalek, Zhongyi Yuan, Rene Stangenberg, Wojciech Pisula, Long Chen, Klaus Müllen, Chemistry - An Asian Journal, 2014

Abstract A macrocyclic dibenzocoronene tetracarboxdiimide containing two benzo‐21‐crown‐7 groups has been synthesized. It shows liquid‐crystalline behavior and selectively binds Pb2+ or K+ to form 1:2 complexes in solution. The complexation leads to a significant increase of fluorescence; the ...

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An AIE active Y-shaped diimidazolylbenzene: aggregation and disaggregation for Cd2+ and Fe3+ sensing in aqueous solution

15-10-2014 | Chengming Li; Chao Gao; Jingbo Lan; Jingsong You; Ge Gao, Organic & Biomolecular Chemistry, 2014

A simple Y-shaped dimb with AIE property was designed and synthesized. It showed selective fluorescence turn-on toward Cd2+ ion in MeCN/water (2:8, v/v) through aggregation, and also selective fluorescence turn-off toward Fe3+ ion in MeCN/water (1:99, v/v) through disaggregation.

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Mechanism and application of halogen bond induced fluorescence enhancement and iodine molecule cleavage in solution

14-10-2014 | Wen-sheng Zou; Sen Lin; Jia-yuan Li; Hong Qing Wei; Xiao-qin Zhang; Dong-xu Shen; Jun-qin Qiao; Hong-Zhen Lian; Daiq ..., New Journal of Chemistry, 2014

In this paper, strong XB donor (Iodine) and photoinduced electron transfer (PET) molecule (Ciprofloxacin, Cip) were selected as the objectives to investigate XB under weakly alkaline condition. A series of experimental characterizations were employed to elucidate the interaction mechanism of XB ...

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Poly(ferulic acid-co-tyrosine): Effect of the Regiochemistry on the Photophysical and Physical Properties en Route to Biomedical Applications

14-10-2014 | Amandine Noel; Yannick P. Borguet; Jeffery E. Raymond; Karen L. Wooley, Macromolecules, 2014

The photophysical and mechanical properties of novel poly(carbonate-amide)s derived from two biorenewable resources, ferulic acid (FA) and l-tyrosine ethyl ester, were evaluated in detail. From these two bio-based precursors, a series of four monomers were generated (having amide and/or carbonate ...

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Natural α-Amino Acid-Functionalized Poly(phenyleneethynylene)s (PPEs): Synthesis and Chiroptical Characterization of Aggregate States

14-10-2014 | Claudio Resta; Gennaro Pescitelli; Lorenzo Di Bari, Macromolecules, 2014

The synthesis of several novel poly(phenyleneethynylene)s (PPEs) functionalized with different natural α-amino acids methyl esters has been achieved through Cassar–Heck–Sonogashira reaction. Five different derivatives have been prepared varying the nature of the amino acid (Gly, Leu, N-methyl ...

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Fluorescent mesoporous silica nanoparticles functionalized graphene oxide: A facile FRET-based ratiometric probe for Hg2+

13-10-2014 | Author(s): Haixia Zhang , Cuiyan Tong , Jie Sha , Bingxin Liu , Changli Lü, Sensors and Actuators B: Chemical, 2014

Publication date: January 2015 Source:Sensors and Actuators B: Chemical, Volume 206 Author(s): Haixia Zhang , Cuiyan Tong , Jie Sha , Bingxin Liu , Changli Lü This paper reported a facile method for fabricating a functionalized fluorescent graphene oxide (GO) by covalently grafting the ...

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Novel fluorescent polymeric nanoparticles for highly selective recognition of copper ion and sulfide anion in water

13-10-2014 | Author(s): Jian Chen , Ya Li , Weibang Zhong , Qingyang Hou , Hong Wang , Xiang Sun , Pinggui Yi, Sensors and Actuators B: Chemical, 2014

Publication date: January 2015 Source:Sensors and Actuators B: Chemical, Volume 206 Author(s): Jian Chen , Ya Li , Weibang Zhong , Qingyang Hou , Hong Wang , Xiang Sun , Pinggui Yi In the present study, a fluorescence resonance energy transfer (FRET)-mediated multifunctional sensor ...

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Immunoassay for carcinoembryonic antigen based on the Zn2+-enhanced fluorescence of magnetic-fluorescent nanocomposites

13-10-2014 | Author(s): Kaiqing Wu , Chengchao Chu , Chao Ma , Hongmei Yang , Mei Yan , Shenguang Ge , Jinghua Yu , Xianra ..., Sensors and Actuators B: Chemical, 2014

Publication date: January 2015 Source:Sensors and Actuators B: Chemical, Volume 206 Author(s): Kaiqing Wu , Chengchao Chu , Chao Ma , Hongmei Yang , Mei Yan , Shenguang Ge , Jinghua Yu , Xianrang Song Carbon coated magnetic composite nanoparticles (Fe3O4@C) were prepared and further ...

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Global analysis of quenching of the time-resolved emission of ZnO nanocrystals by adsorbed rhodamine B on the basis of Tachiya theory

12-10-2014 | Author(s): Pushpendra Kumar , Torbjörn Pascher , M. Tachiya , Suman Kalyan Pal, Journal of Photochemistry and Photobiology A: Chemistry, 2014

Publication date: 1 January 2015 Source:Journal of Photochemistry and Photobiology A: Chemistry, Volume 296 Author(s): Pushpendra Kumar , Torbjörn Pascher , M. Tachiya , Suman Kalyan Pal Normally dye molecules are adsorbed onto the nanocrystal (NC) surface in dye–NC mixed solution, but ...

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