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A novel polynorbornene-based chemosensor for the fluorescence sensing of Zn2+ and Cd2+ and subsequent detection of pyrophosphate in aqueous solutions

02-Apr-2015 | Pei-Shui Yao; Zhanghua Liu; Jin-Zhu Ge; Yong Chen; Qian-Yong Cao, Dalton Transactions, 2015

A hydroxyquinoline functionlized polynorbornene (P1) was designed and synthesized. In an aqueous solution, P1 shows a “turn-on” fluorescence response for Zn2+ and Cd2+ with a 50 nm blue shift. Furthermore, both P1-Zn2+ and P1-Cd2+ complexes were found to respond to pyrophosphate (PPi) over other ...


Site-selective Recognition of Peptide Phosphorylation by a Terbium(III) Complex in Aqueous Solution

02-Apr-2015 | Xiaohui Wang; Tao Yang; Jian Luo; Liu Yang; cheng yao, Chemical Communication, 2015

A terbium(III) complex exhibits efficient selectivity for proximal diphosphorylation of peptides, accompanied with remarkable luminescence enhancement in the presence of Zn(II) ions in both buffer and protein extraction solution from brain homogenates of mice.


Electrochemical performance and biosensor application of TiO2 nanotube arrays with mesoporous structures constructed by chemical etching

02-Apr-2015 | Jinwen Wang; Guangqing Xu; Xu Zhang; Jun Lv; Xinyi Zhang; Zhixiang Zheng; Yucheng Wu, Dalton Transactions, 2015

Novel mesoporous TiO2 nanotube arrays (TiO2 NTAs) were synthesized by an anodization method combined with chemical etching in HF solution, and the electrochemical performance was studied. Glucose oxidase (GOx) was immobilized on the mesoporous TiO2 NTAs to achieve an efficient biosensor for ...


A solution-processed, mercaptoacetic acid-engineered CdSe quantum dot photocathode for efficient hydrogen production under visible light irradiation

02-Apr-2015 | Bin Liu; Xu-Bing Li; Yu-Ji Gao; Zhi-Jun Li; Qing-Yuan Meng; Chen-Ho Tung; Li-Zhu Wu, Energy & Environmental Science, 2015

We describe here a simple, efficient and stable CdSe QDs/NiO photocathode engineered using a molecular linker, mercaptoacetic acid (MAA), for H2 generation from neutral water. This protocol does not require any sacrificial reagent, external cocatalyst, protecting layer and buffer solution as ...


Growth rates and water stability of 2D boronate ester covalent organic frameworks

02-Apr-2015 | Brian J Smith; Nicky Hwang; Anton Chavez; Jennifer Lynn Novotney; William Dichtel, Chemical Communication, 2015

We examine the growth rates, activation energies, and hydrolytic stability of multiple 2D boronate ester covalent organic frameworks by turbidity measurements, observing a 200-fold range in stability. The rate-determining step in boronate ester 2D COF growth is not in-solution condensation, but ...


Reversible and contrasting changes of the cloud point temperature of pillar[5]arenes with one quinone unit and tri(ethylene oxide) chains induced by redox chemistry and host–guest complexation

02-Apr-2015 | Tomoki Ogoshi; Tomohiro Akutsu; Yuko Tamura; Tada-aki Yamagishi, Chemical Communication, 2015

A new water-soluble redox-active pillar[5]arene was synthesized by incorporation of one benzoquinone unit. The pillar[5]arene showed redox-responsive reversible lower critical solution temperature changes in aqueous solution.


Structural Investigation and Scintillation Properties of Cd1-xZnxWO4 Solid Solution Single Crystals

01-Apr-2015 | jingfu zhang; jingen pan; jie yin; jing wang; jianguo pan; hongbing chen; Rihua Mao, CrystEngComm, 2015

The strategy for Cd1-xZnxWO4 (x < 0.5) solid solution growth was successfully achieved by the Czochralski method. Polycrystalline samples and crystals of the Cd1-xZnxWO4 system were studied using X-ray diffraction technique. Furthermore, the scintillation properties for Cd1-xZnxWO4 (x < 0.5) ...


Aptamer-based colorimetric biosensing of abrin using catalytic gold nanoparticles

01-Apr-2015 | Jingting Hu; Pengjuan Ni; Haichao Dai; Yujing Sun; Yilin Wang; shu jiang; Zhuang Li, Analyst, 2015

In this study we propose a simple and sensitive colorimetric aptasensor for the quantitative analysis of abrin by using catalytic AuNPs for the first time. AuNPs possessed the peroxidase-like activity that could catalyse 3, 3, 5, 5-tetramethylbenzidine (TMB) in the presence of H2O2 , to produce a ...


Solvent-Induced Structural Transitions of Lysozyme in an Electrospray Ionization Source

01-Apr-2015 | Jong Wha Lee; Hugh Inkon Kim, Analyst, 2015

The structural characterization of proteins using electrospray ionization mass spectrometry (ESI-MS) has become an important method for understanding protein structural dynamics. The correlation between the structures of proteins in solution and gas phase needs to be understood for the ...


Immobilization of membrane-bounded (S)-mandelate dehydrogenase in sol-gel matrix for electroenzymatic synthesis

29-Mar-2015 | Author(s): Ievgen Mazurenko , Wissam Ghach , Gert-Wieland Kohring , Christelle Despas , Alain Walcarius , Mathi ..., Bioelectrochemistry, 2015

Publication date: Available online 25 March 2015 Source:Bioelectrochemistry Author(s): Ievgen Mazurenko , Wissam Ghach , Gert-Wieland Kohring , Christelle Despas , Alain Walcarius , Mathieu Etienne Membrane-bounded (S)-mandelate dehydrogenase has been immobilized on the surface of ...


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