نتایج جستجو برای: cetyltrimethylammonium bromide

تعداد نتایج: 17435  

2000
Xinghua Liu C.-M. Chun Ilhan A. Aksay Wei-Heng Shih

Mesostructured nickel oxide was formed with nickel sulfate and cationic surfactant cetyltrimethylammonium bromide (CTAB). X-ray diffraction (XRD) peaks at low scattering angles and transmission electron microscopy (TEM) indicated that a mesostructure was formed. However, these XRD patterns disappeared after calcination. The addition of sodium silicate in the precursor solutions produced a mesos...

Journal: :Acta crystallographica. Section D, Biological crystallography 2004
Ting Xu Naomi J Logsdon Mark R Walter

Interleukin-22 is a potent mediator of cellular inflammatory responses. Crystals of interleukin-22 expressed in Drosophila melanogaster S2 cells (IL-22Dm) have been grown from polyethylene glycol solutions. To obtain crystals suitable for X-ray diffraction analysis required the separation of different IL-22Dm glycosylation variants and the inclusion of the detergent cetyltrimethylammonium bromi...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1982
R Hilhorst C Laane C Veeger

Hydrogenase (hydrogen:ferricytochrome c(3) oxidoreductase, EC 1.12.2.1) from Desulfovibrio vulgaris was encapsulated in reversed micelles with cetyltrimethylammonium bromide as surfactant and a chloroform/octane mixture as solvent. Reducing equivalents for hydrogenase-catalyzed hydrogen production were provided by vectorial photosensitized electron transfer from a donor (thiophenol) in the orga...

2009
H.J.M. Hanley Howard J. M. Hanley

Small angle neutron scattering (SANS) data are reported from a system that models the contamination of a clay/organic matter soil from a fuel spillage. The soil was represented as an aqueous dispersion of the synthetic clay mineral Laponite coated with lysine, and the contaminant was a representative jet fuel, quadricyclane, mixed with the detergent cetyltrimethylammonium bromide (CTAB). The ad...

2012
PINKI SHARMA

Dissolution behaviour of both 5, 5-diphenyl hydantoin sodium commonly known as dilantin sodium (DS) and its corresponding marketed capsule dilantin have been studied in aqueous as well as micellar media. Percentage dissolution of both DS and its marketed capsule are found to be low as expected in aqueous medium due to its very low solubility in water. However, their dissolution tendency is foun...

Journal: :Journal of colloid and interface science 2006
Yoshie Ishikawa Yoshiki Shimizu Takeshi Sasaki Naoto Koshizaki

ZnO columnar single crystals were formed by pulsed laser ablation in deionized water and surfactant aqueous solutions of lauryl dimethylaminoacetic acid (LDA) and cetyltrimethylammonium bromide (CTAB) at 80 degrees C. ZnO particles produced by laser ablation were dissolved at a higher temperature than 60 degrees C, and then crystalline growth to columnar structure proceeded. While large ZnO col...

1999
Michael Tiemann Michael Fröba Joe Wong

Introduction Owing to the great catalytic potential of zeoliteanalogous microstructured aluminophosphates (AlPO4-n), first introduced in 1982 by Wilson et al., numerous attempts have been made to prepare mesostructured aluminophosphates following the synthetic route given by researchers of Mobil Oil in 1992, which utilises supramolecular arrays of surfactants as structuredirecting templates und...

Journal: :Journal of the American Chemical Society 2005
Hui Wang Carly S Levin Naomi J Halas

We demonstrate a convenient and cost-effective chemical approach for fabricating highly ordered Au nanoparticle arrays with sub-10-nm interparticle gaps. Near-field enhancements inside the interparticle gaps create uniform periodic arrays of well-defined "hot spots" exploitable for large surface-enhanced Raman spectroscopy (SERS) enhancements. A cetyltrimethylammonium bromide (CTAB) bilayer sur...

Journal: :Physical chemistry chemical physics : PCCP 2013
Ling Chen Wan Guo Yuxin Yang Ang Zhang Shengqu Zhang Yihang Guo Yingna Guo

Plate- and octahedron-like Pt/Bi5Nb3O15 heterostructures are controllably prepared by a hydrothermal treatment method combined with photodeposition in the presence of different surfactants, i.e., cetyltrimethylammonium bromide (CTAB) and polyvinylpyrrolidone (PVP). The composition, structure, morphology, optical absorption properties, and textural properties of as-prepared Pt/Bi5Nb3O15 are well...

2014
Courtney M. Payne Dmitri E. Tsentalovich Denise N. Benoit Lindsey J. E. Anderson Wenhua Guo Vicki L. Colvin Matteo Pasquali Jason H. Hafner

Gold nanobelts were synthesized by the reduction of tetrachloroauric acid with ascorbic acid in the presence of the surfactants cetyltrimethylammonium bromide and sodium dodecylsulfate. The resulting structures have rectangular cross sectional dimensions that are tens of nanometers and lengths that are tens to hundreds of micrometers. We find that the nanobelt yield and resulting structures are...

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