نتایج جستجو برای: cetyltrimethylammonium bromide

تعداد نتایج: 17435  

Journal: :Journal of colloid and interface science 2013
Bárbara Herrera Carolina Adura Nicolás Yutronic Marcelo J Kogan Paul Jara

Gold nanorods (AuNRs) stabilized by cetyltrimethylammonium bromide (CTAB) were deposited onto crystals of α-cyclodextrin (α-CD) inclusion compounds (ICs) that contained octanethiol (OT) as guest molecules. The nanodecoration was produced specifically at the {001} crystal planes through interaction between the -SH groups of the ICs and the AuNRs.

2015
Xing Ma Samuel Sanchez

Experimental Details Materials Tetraethylorthosilicate (TEOS, 99%), cetyltrimethylammonium bromide (CTAB, >95%), (3-aminopropyl)triethoxysilane (APTES), hydrochloric acid (HCl, assay 37%), absolute ethanol (EtOH, >99.9%), fluorescein isothiocyanate (FITC), 1-Ethyl-3(3-dimethylaminopropyl)carbodiimide (EDC), N-Hydroxysuccinimide (NHS), catalase (from Aspergillus niger), phosphate buffered saline...

2004
Santanu Paria C. Manohar Kartic C. Khilar

Adsorption kinetics and equilibrium studies of sodium dodecylbenzenesulfonate (NaDBS) on cellulosic surface are investigated. Modifications in adsorption induced by cationic surfactant cetyltrimethylammonium bromide (CTAB) are studied. It is concluded that the rate of adsorption and the amount of adsorption are increased. Importance of these observations in detergency is indicated.

Journal: :Chemical communications 2008
Yan Xing Hongjie Zhang Shuyan Song Jing Feng Yongqian Lei Lijun Zhao Meiye Li

Unusual hierarchical stacked superstructures of cubic beta-In2S3 were fabricated via a facile hydrothermal process in the presence of a surfactant cetyltrimethylammonium bromide CTAB; the 3D superstructures were developed by helical propagation of surface steps from microflakes of 10-20 nm thickness.

Journal: :Applied and environmental microbiology 1993
R N Waterhouse L A Glover

Three different methods of DNA isolation (organic deproteinization, potassium acetate deproteinization, and the use of cetyltrimethylammonium bromide) have been used to prepare DNA from Bacillus subtilis. Subsequent hybridization with an rDNA probe (DNA coding for rRNA) produces different patterns, which mirror those previously reported to indicate an rDNA deletion.

Journal: :Chemical communications 2005
Daniela R Radu Cheng-Yu Lai Jianguo Huang Xu Shu Victor S-Y Lin

A synthetic method that can fine tune the amount of chemically accessible organic functional groups on the pore surface of MCM-41 type mesoporous silica nanosphere (MSN) materials has been developed by electrostatically matching various anionic organoalkoxysilanes with the cationic cetyltrimethylammonium bromide micelles in a base-catalyzed condensation reaction of tetraethoxysilane.

Journal: :Chemical communications 2013
Zhaofeng Wang Jingjing Liu Weixing Wang Haoran Chen Zhihong Liu Qingkai Yu Huidan Zeng Luyi Sun

Graphene sheets with an adjustable number of layers and a low defect density were prepared by exfoliation of microwave-assisted expanded graphite in the aqueous phase with the assistance of cetyltrimethylammonium bromide. The graphene sheets exhibit excellent film-formation ability, showing potential applications in optical and electrical device fields.

Journal: :علوم 0
وحیده کرامتی vahide keramati azimie-niknjadi south street-timsarshams alley- erfan apartment-number 139-4.عظیمیه- خیابان نیکنژادی جنوبی - خیابان تیمسار شمس -ساختمان عرفان -پلاک 139 - واحد 4

a simple hydrothermal method was designed for the synthesis of the nanostructure barium phosphonate in presence of cetyltrimethylammonium bromide (ctab) or sodium dodecyl sulfate (sds) as surfactant. ft-ir, edax, xrf, xrd, sem were used to characterize this material. effect of solvent on morphology complex was discussed. thermogr avimetric analysis (tga) shows the existence of porosity and stab...

Journal: :Journal of bacteriology 1983
L S Privalle R H Burris

Heterocysts isolated from Anabaena sp. strain 7120 with lysozyme plus sonication were permeabilized with the cationic detergent cetyltrimethylammonium bromide, and they then exhibited comparable acetylene reduction activity in the light and dark with an ATP-regenerating system plus dithionite. The detergent diminished the effect of H2 in enhancing acetylene reduction.

Journal: :Chemical communications 2012
Bing-Sheng Yin Jian-Qiang Hu Song-Yuan Ding An Wang Jason R Anema Yi-Fan Huang Zhi-Chao Lei De-Yin Wu Zhong-Qun Tian

A comparative study of gold nanoparticles (Au NPs) growth employing cetyltrimethylammonium bromide (CTAB) adsorbent was performed. Au nanooctahedrons transformed into slightly truncated nanocubes without centrifugation, whereas they transformed into nanocubes with centrifugation. Our results indicate that the mass transfer of Au monomers can influence the shape evolution of NPs.

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید