نتایج جستجو برای: Hexadecyl trimethyl ammonium bromide (IITAB)

تعداد نتایج: 44734  

Journal: :journal of physical & theoretical chemistry 2010
morteza keshavarz

in this research, the interaction of hexadecyl trimahyl ammonium bromide (htab) with enzyme ureasehas been investigated comprehensively at different experimental conditions such as ionic strength, proteinconcentration using ion selective membrane electrode of surfactants. the obtained binding isotherms frompotentiometnc studies have been analyzed by different theories such as wyman binding pote...

2012
Karolina Wilgosz Xuecheng Chen Krzysztof Kierzek Jacek Machnikowski Ryszard J Kalenczuk Ewa Mijowska

Mesoporous carbon spheres (MCS) have been fabricated from structured mesoporous silica sphere using chemical vapor deposition (CVD) with ethylene as a carbon feedstock. The mesoporous carbon spheres have a high specific surface area of 666.8 m2/g and good electrochemical properties. The mechanism of formation mesoporous carbon spheres (carbon spheres) is investigated. The important thing is a s...

Journal: :Soft matter 2014
L M Bergström I Grillo

The correlation between the growth behaviour and geometrical shape for CTAB-rich mixed micelles formed by the cationic surfactant hexadecyl trimethyl ammonium bromide (CTAB) and the anionic surfactant sodium octyl sulphate (SOS) has been investigated with small-angle neutron scattering (SANS). Small tablet-shaped micelles formed by CTAB are found to grow only weakly in size with increasing surf...

2013
Muhammad Nafees Amir Waseem Abdur Rehman Khan

Four cost effective organoclays were synthesized, characterized, and studied for the sorption of hydrophobic compounds (edible oil/grease and hydrocarbon oil) from aqueous solutions. Organoclays were prepared by cation exchange reaction of lattice ions (present onto the surface of laterite and bentonite clay minerals) with two surfactants, hexadecyl trimethyl ammonium chloride (HDTMA-Cl) and te...

Journal: :Bio-medical materials and engineering 2015
Tian Yang Yu-Shuai Zhang Xiao-Lu Yang Fang-Yong Geng Bao-Lin Xiao Meng-Meng Xu Di Li Jun Hong Ali Akbar Moosavi-Movahedi

A novel artificial peroxidase (AP) with highly catalytic efficiency was designed using hexadecyl trimethyl ammonium bromide (CTAB, 3 mM) nano-micelles and bovine heart cytochrome c (Cyt c, 0.5 µM) in 100 mM, pH 8.0 phosphate buffer at 25°C. The catalytic rate (kcat) and Michaelis-Menten (Km) of the AP were determined to be 0.311 ± 0.013 s(-1) and 8.64 ± 0.6 µM. The catalytic efficiency was 0.03...

Journal: :Optics express 2007
X H Yang L L Wang

A kind of optical pH sensor was demonstrated that is based on a pH-sensitive fluorescence dye-doped (eosin) cellulose acetate (CA) thin-film modified microstructured polymer optical fiber (MPOF). It was obtained by directly inhaling an eosin-CA-acetic acid mixed solution into array holes in a MPOF and then removing the solvent (acetic acid). The sensing film showed different fluorescence intens...

Journal: :European journal of advanced chemistry research 2022

We have synthesized the surfactant cationic dihexadecyl dimethyl ammonium bromide [16-16]. The aggregates of [16-16] and hexadecyl trimethyl (C16TAB) were prepared in aqueous solution different mixing ratio (x[16-16]) effect experimental temperature on formation studied using a number physicochemical methods. With an increase x[16-16], structure changed from spherical micelles to vesicles. In r...

Journal: :Fen-mühendislik dergisi 2021

In this study, the effects of hydrochloric acid (HCl) and acetic (HAc) modification on hexadecyl trimethyl ammonium bromide (HTAB) K+ adsorption characteristics a natural zeolite were investigated. Electrokinetic evaluations showed that HCl had more prominent effect zeta potential compared to HAc. Additionally, pH regulation behavior acid-modified samples was found differ from sample it in agre...

2015
B. Jiang C. C. Zhu Y. D. Huang Sanjoy Bhattacharya

In order to improve the homogeneity and dispersity of the sericite in methylphenyl-silicone resin, the agglomerate state of the sericites was controlled effectively. The dispersive model of the sericite in methylphenyl-silicone resin was designed also. First, the modified sericite was prepared using hexadecyl trimethyl ammonium bromide as the intercalating agent. Then, functional sericite was i...

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