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Sensors, Vol. 14, Pages 21535-21548: Magnetic Bead-Based Colorimetric Immunoassay for Aflatoxin B1 Using Gold Nanoparticles

14-11-2014 | Wang, Xu ; Niessner, Reinhard ; Knopp, Dietmar, Sensors, 2014

A competitive colorimetric immunoassay for the detection of aflatoxin B1 (AFB) has been established using biofunctionalized magnetic beads (MBs) and gold nanoparticles (GNPs). Aflatoxin B1-bovine serum albumin conjugates (AFB-BSA) modified MBs were employed as capture probe, which could ...


Bending Nanofibers into Nanospirals: Coordination Chemistry as a Tool for Shaping Hydrophobic Assemblies

13-11-2014 | Elizaveta Kossoy, Haim Weissman, Boris Rybtchinski, Chemistry - A European Journal, 2014

Abstract In the current work, we demonstrate how coordination chemistry can be employed to direct self‐assembly based on strong hydrophobic interactions. To investigate the influence of coordination sphere geometry on aqueous self‐assembly, we synthesized complexes of the amphiphilic perylene ...


Radiolytic Method as a Novel Approach for the Synthesis of Nanostructured Conducting Polypyrrole

13-11-2014 | Zhenpeng Cui; Cecilia Coletta; Alexandre Dazzi; Patrice Lefrançois; Matthieu Gervais; Stéphane Néron; Samy Remita, Langmuir, 2014

In this study, a novel and extremely facile method for the synthesis of conducting polypyrrole (PPy) was achieved in aqueous solution. This radiolytic method is totally free of template and environmentally friendly compared with traditional chemical methods. According to ultraviolet–visible ...


FD 177:Spatio-Temporal Correlations in Aqueous Systems: Computational Studies of Static and Dynamic Heterogeneity by 2D-IR Spectroscopy

11-11-2014 | Biman Bagchi; Rikhia Ghosh; Tuhin Samanta; Saikat Banerjee; Rajib Biswas, Faraday Discussions, 2014

Local heterogeneity is ubiquitous in natural aqueous systems. It can be caused locally by external biomolecular subsystems like proteins, DNA, micelles and reverse micelles, nanoscopic materials etc. but can also be intrinsic to the thermodynamic nature of the aqueous solution itself (like binary ...


Nanoscale Surface Potential Variation Correlates with Local S/Se Ratio in Solution-Processed CZTSSe Solar Cells

11-11-2014 | Michael Salvador; Sarah M. Vorpahl; Hao Xin; Wesley Williamson; Guozheng Shao; Durmus U. Karatay; Hugh W. Hillhouse; ..., Nano Letters, 2014

Thin film solar cells made from Cu, Zn, Sn, and S/Se can be processed from solution to yield high-performing kesterite (CZTS or CZTSSe) photovoltaics. We present a microstructural study of solution-deposited CZTSSe films prepared by nanocrystal-based ink approaches using scanning probe microscopy ...


White Light-Emitting Electrochemical Cells Based on the Langmuir–Blodgett Technique

11-11-2014 | Jesús M. Fernández-Hernández; Luisa De Cola; Henk J. Bolink; Miguel Clemente-León; Eugenio Coronado; Alicia Forment- ..., Langmuir, 2014

Light-emitting electrochemical cells (LECs) showing a white emission have been prepared with Langmuir–Blodgett (LB) films of the metallosurfactant bis[2-(2,4-difluorophenyl)pyridine][2-(1-hexadecyl-1H-1,2,3-triazol-4-yl)pyridine]iridium(III) chloride (1), which work with an air-stable Al ...


Complexes of Copper(I) Thiocyanate with Monodentate Phosphine and Pyridine Ligands and the P(,N)‐Donor Diphenyl(2‐pyridyl)phosphine

06-11-2014 | Graham A. Bowmaker, John V. Hanna, Scott P. King, Fabio Marchetti, Claudio Pettinari, Adriano Pizzabiocca, Brian W. ..., European Journal of Inorganic Chemistry, 2014

Abstract Copper(I) thiocyanate derivatives were prepared by the reaction of CuNCS with pyridine (py) and tertiary monophosphine ligands [PR3 in general; in detail: PPh3, triphenylphosphine, P(4‐FPh)3, tris(4‐fluorophenyl)phosphine)], as well as the potentially bidentate ligand ...


Preparation and Characterization of Superparamagnetic Molecularly Imprinted Polymers for Selective Adsorption and Separation of Vanillin in Food Samples

06-11-2014 | Fangjian Ning; Hailong Peng; Liling Dong; Zhong Zhang; Jinhua Li; Lingxin Chen; Hua Xiong, Journal of Agricultural and Food Chemistry, 2014

Novel water-compatible superparamagnetic molecularly imprinted polymers (M-MIPs) were prepared by coating superparamagnetic Fe3O4 nanoparticles with MIPs in a methanol–water reaction system. The M-MIPs were used for the selective adsorption and separation of vanillin from aqueous solution. The ...


Studying the Interactions of Polyethylene with Graphite in the Presence of Solvent by High Temperature Thermal Gradient Interactive Chromatography, Thermal Gradient Nuclear Magnetic Resonance Spectroscopy, and Solution Differential Scanning Calorimetry

05-11-2014 | D. Mekap; F. Malz; R. Brüll; Z. Zhou; R. Cong; A. W. deGroot; A. R. Parrott, Macromolecules, 2014

High temperature thermal gradient interactive chromatography (HT-TGIC or TGIC) has emerged as an important analytical tool to determine the comonomer content distribution (CCD) present in copolymers of polyethylene (PE). The method separates the macromolecules according to the differences in ...


New Pathway for Heterogenization of Molecular Catalysts by Non-covalent Interactions with Carbon Nanoreactors

04-11-2014 | Maria A. Lebedeva; Thomas W. Chamberlain; Martin Schröder; Andrei N. Khlobystov, Chemistry of Materials, 2014

A novel approach to heterogenization of catalytic molecules is demonstrated using the nanoscale graphitic step edges inside hollow graphitized carbon nanofibers (GNFs). The presence of the fullerene C60 moiety within a fullerene–salen CuII complex is essential for anchoring the catalyst within ...


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