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Effect of operating conditions on size and morphology of amylose nanoparticles prepared by precipitation

12-12-2014 | Yan Dong, Yanjiao Chang, Qian Wang, Jin Tong, Jiang Zhou, Starch - Stärke, 2014

Nano‐sized amylose particles were prepared by precipitating amylose solution (using DMSO/water mixture as solvent) with absolute ethanol. Effects of operating conditions, including temperature and solvent composition for preparing amylose solution, amylose concentration, ethanol amount used for ...


Strategic Design of Three-Dimensional (3D) Urchin-Like Pt–Ni Nanoalloys: How This Unique Nanostructure Boosts the Bulk Heterojunction Polymer Solar Cells Efficiency to 8.48%

12-12-2014 | Shang-Wei Chou; Hsieh-Chih Chen; Zhiyun Zhang; Wei-Hsuan Tseng; Chih-I Wu; Ya-Yun Yang; Ching-Yen Lin; Pi-Tai Chou, Chemistry of Materials, 2014

In this study, a simple and systematic shape-controlled synthetic protocol for tailoring nanoscale structures to generate large and monodispersed of three-dimensional (3D) urchin-like Pt–Ni multipods (MPs) and spherical nanoparticles (NPs) is reported, for which the mechanism of production is ...


Quadruple-Stimuli-Sensitive Polymeric Nanocarriers for Controlled Release under Combined Stimulation

12-12-2014 | Ziquan Cao; Hao Wu; Jie Dong; Guojie Wang, Macromolecules, 2014

Here we report a novel quadruple-stimuli-responsive block copolymer nanocarrier sensitive to pH, temperature, light, and reducing agent. The well-defined amphiphilic diblock copolymer poly(2-nitrobenzyl methacrylate)-SS-poly(dimethylaminoethyl methacrylate) (PNBM-SS-PDMAEMA) was synthesized via ...


Fe(III) Hydroxide Nucleation and Growth on Quartz in the Presence of Cu(II), Pb(II), and Cr(III): Metal Hydrolysis and Adsorption

11-12-2014 | Chong Dai; Yandi Hu, Environmental Science & Technology, 2014

Fe(III) hydroxide nanoparticles are an essential carrier for aqueous heavy metals. Particularly, iron hydroxide precipitation on mineral surfaces can immobilize aqueous heavy metals. Here, we used grazing-incidence small-angle X-ray scattering (GISAXS) to quantify nucleation and growth of iron ...


Thermally Triggered Self-Assembly of Folded Proteins into Vesicles

11-12-2014 | Won Min Park; Julie A. Champion, Journal of the American Chemical Society, 2014

We report thermally triggered self-assembly of folded proteins into vesicles that incorporates globular proteins as building blocks. Leucine zipper coiled coils were combined with either globular proteins or elastin-like polypeptides as recombinant fusion proteins, which form “rod–coil” and ...


Small-Angle Neutron Scattering Studies of Mineralization on BSA Coated Citrate Capped Gold Nanoparticles Used as a Model Surface for Membrane Scaling in RO Wastewater Desalination

11-12-2014 | Y. N. Dahdal; V. Pipich; H. Rapaport; Y. Oren; R. Kasher; D. Schwahn, Langmuir, 2014

Bovine serum albumin (BSA) coated on citrate capped gold nanoparticles (BSA-GNPs) was exposed to a simulated wastewater effluent (SSE) in order to study the mineralization and thereby mimic scaling at biofouled membranes of reverse osmosis (RO) wastewater desalination plants. RO is a leading ...


Shape-controlled synthesis of phosphor K2SiF6:Mn4+ nanorods and their luminescence properties

10-12-2014 | Xiaoqing Li; Xiangming Su; Ping Liu; Jie Liu; Zhiling Yao; Jiajun Chen; Hui Yao; Xibin Yu; Ming Zhan, CrystEngComm, 2014

A series of efficient red phosphor K2SiF6:Mn4+ nanoparticles with uniform morphology and dispersity were successfully prepared through a fast liquid–solid solution route at room temperature. Potassium oleate and SiO2 spheres/KMnO4 molar ratio play an important role in the formation of the nanorod ...


Superior optical properties of Fe3+–W18O49 nanoparticles prepared by solution combustion synthesis

09-12-2014 | Pengqi Chen; Mingli Qin; Ye Liu; Baorui Jia; Zhiqin Cao; Qi Wan; Xuanhui Qu, New Journal of Chemistry, 2014

Modification by metal-doping allows the design of new nanomaterials with enhanced optical properties. In this paper, the photocatalytic effects of Fe3+-doped W18O49 nanorods prepared by solution combustion synthesis were studied for the first time. The Fe3+-doped W18O49 powders were investigated ...


ChemInform Abstract: Phase‐Selective Synthesis of Cu2ZnSnS4 Nanocrystals Using Different Sulfur Precursors.

04-12-2014 | Zhenggang Li, Alvic Lim Kar Lui, Kwan Hang Lam, Lifei Xi, Yeng Ming Lam, ChemInform, 2014

Abstract Kesterite Cu2ZnSnS4 nanoparticles, wurtzite Cu2ZnSnS4 nanoparticles, as well as Cu2ZnSnS4 particles with a mixture of both structures are prepared by hot injection of the sulfur source into an oleylamine (OA) solution of Cu(OAc)2, ZnCl2, and SnCl4 using elemental sulfur, ...


SERS and FDTD simulation of gold nanoparticles grafted on germanium wafer via galvanic displacement

04-12-2014 | Zhaoshun Zhang, Fan Liao, Shuzhen Ma, Suning Gao, Mingwang Shao, Surface and Interface Analysis, 2014

Uniform and dense Au nanoparticles grown on Ge (Au/Ge) were fabricated by a facile galvanic displacement method and employed as surface‐enhanced Raman scattering (SERS) substrates. The substrates exhibited excellent reproducibility in the detection of rhodamine 6G aqueous solution with a ...


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