Search

Showing total 7 results
Start Over Journal chemical communications Database Academic Search Index
7 results

1. Fluorescent strip sensor for rapid determination of toxinsElectronic supplementary information (ESI) available: Detailed information of the whole experimental procedure, the characterization of QD–aptamer conjugation and factors. See DOI: 10.1039/c0cc04032k

Author

WangThese authors contributed equally to this paper., Libing, Chen, Wei, Ma, Wenwei, Liu, Liqinag, Ma, Wei, Zhao, Yuan, Zhu, Yingyue, Xu, Liguang, Kuang, Hua, and Xu, Chuanlai

Subjects
*OCHRATOXINS, *FLUORESCENCE, *EXPERIMENTS, *QUANTUM dots, *NANOPARTICLES, *COLLOIDAL gold, *SOLUTION (Chemistry)
Abstract

Here, we report a simple fluorescent strip sensor based on aptamer–quantum dots technology that can meet toxin monitoring demands using ochratoxin A (OTA) as a model toxin. The limit of the detection (LOD) for the fluorescent strip was 1.9 ng mL−1, while the time needed for the detection is only 10 min; this conforms to the standards of World Health Organization (WHO) or better. Overall functional parameters are also better than the analogous characteristics of gold nanoparticle strips.High selectivity was maintained as well, making them suitable for the samples with complex solution composition. [ABSTRACT FROM AUTHOR]

Published
2011

2. Preparation of supported Mo2C-based catalysts from organic–inorganic hybrid precursor for hydrogen production from methanol decomposition.

Author

GaoThese authors contributed equally to this paper., Qingsheng, Zhang, Chenxi, Wang, Sinong, Shen, Wei, Zhang, Yahong, Xu, Hualong, and Tang, Yi

Subjects
*CATALYST supports, *MOLYBDENUM, *CARBON, *METHANOL, *CHEMICAL decomposition, *ORGANIC compounds, *INORGANIC compounds, *HYDROGEN production
Abstract

An effective and safe route is proposed to prepare supported Mo2C-based catalysts from organic–inorganic hybrids, which exhibit high activity and stability for producing H2from methanol catalytic decomposition. [ABSTRACT FROM AUTHOR]

Published
2010

3. Preparation of supported Mo2C-based catalysts from organic–inorganic hybrid precursor for hydrogen production from methanol decompositionElectronic supplementary information (ESI) available: EDS of Mo2C and Co nanoparticles in Co–Mo2C/CNT and catalytic performance of Co–Mo2C/CNT depending on temperature. See DOI: 10.1039/c0cc01430c

Author

GaoThese authors contributed equally to this paper., Qingsheng, Zhang, Chenxi, Wang, Sinong, Shen, Wei, Zhang, Yahong, Xu, Hualong, and Tang, Yi

Subjects
*CATALYSTS, *ORGANIC compounds, *INORGANIC compounds, *METHANOL, *HYDROGEN, *NANOPARTICLES, *CATALYST supports, *CHEMICAL decomposition
Abstract

An effective and safe route is proposed to prepare supported Mo2C-based catalysts from organic–inorganic hybrids, which exhibit high activity and stability for producing H2from methanol catalytic decomposition. [ABSTRACT FROM AUTHOR]

Published
2010

4. Deazaflavins as mediators in light-driven cytochrome P450 catalyzed hydroxylationsElectronic supplementary information (ESI) available: Experimental details and additional control experiments. See DOI: 10.1039/b913863c.

Author

Felipe E. ZillyThese authors contributed equally to this paper., Andreas Taglieber, Frank Schulz, Frank Hollmann, and Manfred T. Reetz

Subjects
*FLAVINS, *CYTOCHROME P-450, *ADENINE nucleotides, *HYDROXYLATION, *ENZYME activation
Abstract

A light-driven deazaflavin-dependent direct enzyme regeneration system has been developed for a P450-BM3 catalyzed CH-activating hydroxylation, thereby avoiding the need for the expensive NADPH cofactor. [ABSTRACT FROM AUTHOR]

Published
2009
Full Text
View/download PDF

5. Droplet-based compartmentalization of chemically separated components in two-dimensional separationsElectronic supplementary information (ESI) available: Experimental details and movie clip. See DOI: 10.1039/b918100h.

Author

NiuThe authors contributed equally to the paper., X. Z., Zhang, B., Marszalek, R. T., Ces, O., Edel, J. B., Klug, D. R., and deMello, A. J.

Subjects
*SEPARATION (Technology), *NANOSTRUCTURED materials, *OIL filters, *MICROFLUIDICS, *FILTERS & filtration
Abstract

We demonstrate that nanolitre-sized droplets are an effective tool in coupling two-dimensional separations in both time and space. Using a microfluidic droplet connector, chemically separated components can be segmented into nanolitre droplets. After oil filtering and droplet merging, these droplets are loaded into a second dimension for comprehensive separations. [ABSTRACT FROM AUTHOR]

Published
2009

6. Colorimetric screening of bacterial enzyme activity and inhibition based on the aggregation of gold nanoparticlesElectronic supplementary information (ESI) available: Synthesis of substrate, the enzymatic inhibition assay, and tests on bacterial strains. See DOI: 10.1039/b818853j

Author

Tingting JiangT. J. and R. L. contributed equally to the work in this paper., Rongrong Liu, Xianfeng Huang, Huajun Feng, Weiling Teo, and Bengang Xing

Subjects
*COLORIMETRIC analysis, *COLLOIDAL gold, *MICROBIAL enzymes, *BETA lactamases, *ENZYME activation, *ENZYME inhibitors
Abstract

A simple and novel gold nanoparticle (Au-NPs) based colorimetric method has been developed for efficient screening of class A β-lactamase (Bla) activity and inhibitors in vitroand in bacterial strains. [ABSTRACT FROM AUTHOR]

Published
2009
Full Text
View/download PDF

7. An unprecedented twofold interpenetrating (3,4)-connected 3-D metal–organic frameworkElectronic supplementary information (ESI) available: Synthesis of ligand and MOF, simplified view of network, crystal information, hydrogen-bonding table, and XRD pattern. See DOI: 10.1039/b702216f

Author

Seunghee HongThe first and the second authors contributed equally to this paper., Yang Zou, Dohyun Moon, and Myoung Soo Lah

Subjects
*ORGANOMETALLIC chemistry, *ORGANOCOPPER compounds, *CHEMICAL structure, *CHEMICAL reactions, *SOLVENTS, *HYDROGEN bonding
Abstract

An unprecedented twofold interpenetrating (3,4)-connected topology of the Cu3L4-type metal–organic framework was prepared using N,N′,N″-tris(4-pyridinyl)-1,3,5-benzenetricarboxamide (L) as a trigonal three-connection node and the copper(ii) ion as a square planar four-connection node, where the framework contains remarkably large 1-D solvent channels. [ABSTRACT FROM AUTHOR]

Published
2007
Full Text
View/download PDF