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Variation in the chromatographic, material, and chemical characteristics of methacrylate‐based polymer monoliths during photoinitiated low‐temperature polymerization

30-Apr-2016 | Ayumi KOBAYASHI, Takuya NAKAZA, Tomohiko HIRANO, Shinya KITAGAWA, Hajime OHTANI, Journal of Separation Science, 2016

Both separation the behavior and structure of a polymer monolith column depend on both the reaction solution composition and the polymerization conditions. In photo‐initiated low‐temperature polymerization, polymerization temperature, irradiation intensity, and polymerization time were key ...

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Chirality‐Selective Photoluminescence Enhancement of ssDNA‐Wrapped Single‐Walled Carbon Nanotubes Modified with Gold Nanoparticles

29-Apr-2016 | Juan Yang, Qinghua Zhao, Min Lyu, Zhenyu Zhang, Xiao Wang, Meng Wang, Zhou Gao, Yan Li, Small, 2016

In this work, a convenient method to enhance the photoluminescence (PL) of single‐walled carbon nanotubes (SWNTs) in aqueous solutions is provided. Dispersing by single‐stranded DNA (ssDNA) and modifying with gold nanoparticles (AuNPs), about tenfold PL enhancement of the SWNTs is observed. More ...

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Separation and Detection of Amino Acid Metabolites of Escherichia Coli in Microbial Fuel Cell with Capillary Electrophoresis

28-Apr-2016 | Wei Wang, Lihong Ma, Ping Lin, Kaixuan Xu, ELECTROPHORESIS, 2016

In this work, CE‐LIF was employed to investigate the amino acid metabolites produced by Escherichia coli (E coli) in microbial fuel cell (MFC). Two peptides, L‐carnosine and L‐alanyl‐glycine, together with six amino acids, cystine, alanine, lysine, methionine, tyrosine, arginine were separated ...

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Enhancing resolution of free flow zone electrophoresis via a simple sheath‐flow sample injection

28-Apr-2016 | Ying Yang, Fan‐Zhi Kong, Ji Liu, Jun‐Min Li, Xiao‐Ping Liu, Guo‐Qing Li, Ju‐Fang Wang, Hua Xiao, Liu‐Yin Fan, Cheng‐ ..., ELECTROPHORESIS, 2016

In this work, a simple and novel sheath‐flow sample injection method (SFSIM) is introduced to reduce the band broadening of FFZE separation in newly‐developed self‐balance FFE instrument. A needle injector was placed in the center of the separation inlet, into which the background electrolyte ...

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Improving the Sensitivity, Resolution, and Peak Capacity of Gradient Elution in Capillary Liquid Chromatography with Large-Volume Injections by Using Temperature-Assisted On-Column Solute Focusing

26-Apr-2016 | Rachael E. Wilson; Stephen R. Groskreutz; Stephen G. Weber, Analytical Chemistry, 2016

Capillary HPLC (cLC) with gradient elution is the separation method of choice for the fields of proteomics and metabolomics. This is due to the complementary nature of cLC flow rates and electrospray or nanospray ionization mass spectrometry (ESI-MS). The small column diameters result in good ...

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A Novel Photocathode Material for Sunlight‐Driven Overall Water Splitting: Solid Solution of ZnSe and Cu(In,Ga)Se2

26-Apr-2016 | Hiroyuki Kaneko, Tsutomu Minegishi, Mamiko Nakabayashi, Naoya Shibata, Yongbo Kuang, Taro Yamada, Kazunari Domen, Advanced Functional Materials, 2016

Thin films of a solid solution of ZnSe and CuIn0.7Ga0.3Se2 ((ZnSe) x (CIGS) 1–x ) are prepared by co‐evaporation. Structural characterization reveals that the ZnSe and CIGS form a solid solution with no phase separation. (ZnSe)0.85(CIGS)0.15‐based photocathodes modified with Pt, Mo, Ti, and CdS ...

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Effect of alkyl chain length of tri-n-alkyl phosphate extractants on the electrochemical behaviour of U(VI) in ionic liquid medium

25-Apr-2016 | Author(s): R. Rama, Alok Rout, K.A. Venkatesan, M.P. Antony, Journal of Electroanalytical Chemistry, 2016

Publication date: 15 June 2016 Source:Journal of Electroanalytical Chemistry, Volume 771 Author(s): R. Rama, Alok Rout, K.A. Venkatesan, M.P. Antony Higher homologs of trialkyl phosphates have been proposed for the separation of U(VI) from fast reactor dissolver solution by liquid – ...

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Soft Multifaced and Patchy Colloids by Constrained Volume Self-Assembly

20-Apr-2016 | Chris Sosa; Rui Liu; Christina Tang; Fengli Qu; Sunny Niu; Martin Z. Bazant; Robert K. Prud’homme; Rodney D. Priestley, Macromolecules, 2016

Soft colloidal particles with multiple surface patches of differing composition are critical to the development of complex macroscopic structures that can serve as interfacial catalysts, macroscale surfactants, electronically responsive materials, and drug delivery vehicles. Here, we present a ...

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The role of segregation in the polarized emission from polyfluorene embedded in a liquid crystal

18-Apr-2016 | Lavinia Ghirardini, Tersilla Virgili, Serena Bolis, Jeroen Beeckman, Pascal Kockaert, Marco Finazzi, Michele Celebrano, Journal of Polymer Science Part B: Polymer Physics, 2016

ABSTRACT Polyfluorene (PFO) embedded in a nematic liquid crystal (LC) matrix is investigated. For low PFO weight contents, a homogeneous dispersion is obtained which displays a strong fluorescence anisotropy along the LC director, indicating a significant alignment of the polymeric chains ...

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Enhancing Charge Separation in Metallic Photocatalysts: A Case Study of the Conducting Molybdenum Dioxide

18-Apr-2016 | Zhuofeng Hu, Gang Liu, Xingqiu Chen, Zhurui Shen, Jimmy C. Yu, Advanced Functional Materials, 2016

A new visible‐light responsive metallic photocatalyst, nanostructured MoO2, has been discovered. The metallic nature of MoO2 is confirmed by valance X‐ray photoelectron spectroscopy spectrum and theoretical calculations. However, MoO2 itself shows only moderate activity due to the serious charge ...

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