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You searched for: Publication year rev 7988-2012 Remove constraint Publication year rev: 7988-2012 Subject term cetyltrimethylammonium bromide Remove constraint Subject term: cetyltrimethylammonium bromide
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1. A colorimetric assay of protein kinase activity based on peptide-induced coagulation of gold nanorods

Author:
Hirotaro Kitazaki; Takeshi Mori; Jeong-Hun Kang; Takuro Niidome; Masaharu Murata; Makoto Hashizume; Yoshiki Katayama
Source:
Colloids and surfaces 2012 v.99 no. pp. 7-11
ISSN:
0927-7765
Subject:
absorption; cetyltrimethylammonium bromide; coagulation; colloids; color; colorimetry; gold; inhibitory concentration 50; nanorods; peptides; phosphorylation
Abstract:
... We succeeded in applying gold nanorods (NRs) for the detection of protein kinase (PK) activity based on a substrate-induced coagulation mechanism. Because NRs have cationic surface charges due to surface-adsorbed cetyltrimethylammonium bromide, phosphorylated substrate peptides, which gain augmented anionic charges by phosphorylation, induce coagulation of the NRs, resulting in a red-to-blue color ...
DOI:
10.1016/j.colsurfb.2011.08.028

2. A model for monomer and micellar concentrations in surfactant solutions: Application to conductivity, NMR, diffusion, and surface tension data

Author:
Wajih Al-Soufi; Lucas Piñeiro; Mercedes Novo
Source:
Journal of colloid and interface science 2012 v.370 no.1 pp. 102-110
ISSN:
0021-9797
Subject:
cetyltrimethylammonium bromide; data analysis; electrical conductivity; micelles; model validation; models; nuclear magnetic resonance spectroscopy; quantitative analysis; surface tension; surfactants; yields
Abstract:
... An empirical model for the concentrations of monomeric and micellized surfactants in solution is presented as a consistent approach for the quantitative analysis of data obtained with different experimental techniques from surfactant solutions. The concentration model provides an objective definition of the critical micelle concentration (cmc) and yields precise and well defined values of derived ...
DOI:
10.1016/j.jcis.2011.12.037

3. A new and consistent model for dynamic adsorption of CTAB at air/water interface

Author:
Chi M. Phan; Thu N. Le; Shin-ichi Yusa
Source:
Colloids and surfaces 2012 v.406 no. pp. 24-30
ISSN:
0927-7757
Subject:
adsorption; air; cetyltrimethylammonium bromide; colloids; diffusivity; dynamic models; equations; nuclear magnetic resonance spectroscopy; prediction; sorption isotherms; surface tension
Abstract:
... A new and simple equation, with only one parameter, was developed to model the equilibrium surface tension of the air/cetyltrimethylammonium bromide (CTAB) solution interface. The new equilibrium model provides a single best-fitted prediction, instead of several solutions obtained by the conventional Szyszkowski equation. Subsequently, the equation was used to develop a new dynamic model, which do ...
DOI:
10.1016/j.colsurfa.2012.04.044

4. A novel dodine-free selective medium based on the use of cetyl trimethyl ammonium bromide (CTAB) to isolate Beauveria bassiana, Metarhizium anisopliae sensu lato and Paecilomyces lilacinus from soil

Author:
Julieta B. Posadas; Ricardo M. Comerio; Jorge I. Mini; Ana L. Nussenbaum; Roberto E. Lecuona
Source:
Mycologia 2012 v.104 no.4 pp. 974-980
ISSN:
1557-2536
Subject:
Beauveria bassiana; Metarhizium anisopliae; Purpureocillium lilacinum; agar; ammonium compounds; cetyltrimethylammonium bromide; chloramphenicol; dodine; nontarget organisms; oatmeal; selective media; soil; sporulation
Abstract:
... This study evaluated the quaternary ammonium compound cetyl trimethyl ammonium bromide (CTAB) as an alternative to the chemically related dodecylguanidine (dodine) for the selective isolation of entomopathogenic fungi. Oatmeal agar (OA) with chloramphenicol was used as basal medium, and three concentrations of CTAB (0.5, 0.6, 0.7 g/L) were evaluated and compared against OA + 0.46 g/L dodine. Selec ...
DOI:
10.3852/11-234

5. A novel preconcentration strategy for extraction methods based on common cationic surfactants: An alternative to classical coacervative extraction

Author:
Bárbara Delgado; Verónica Pino; Juan H. Ayala; Ana M. Afonso; Venerando González
Source:
Journal of chromatography 2012 v.1257 no. pp. 9-18
ISSN:
0021-9673
Subject:
acetonitrile; aqueous solutions; cationic surfactants; centrifugation; cetyltrimethylammonium bromide; heat; high performance liquid chromatography; ionic strength; lithium; microwave treatment; mixing; pH; polycyclic aromatic hydrocarbons; seawater; sediments
Abstract:
... A novel and simple preconcentration step for aqueous micellar solutions of the common cationic surfactant cetyltrimethylammonium bromide (CTAB) has been developed. The procedure is based on the formation of another phase (a micro-droplet), not soluble in water, in which analytes (originally present in the aqueous solution) experience preconcentration. The method resembles to that of classical coac ...
DOI:
10.1016/j.chroma.2012.08.026

6. A rapid and sensitive colorimetric assay method for Co²⁺ based on the modified Au nanoparticles (NPs): Understanding the involved interactions from experiments and simulations

Author:
Yumin Leng; Fuqiang Zhang; Yujie Zhang; Xiaoqin Fu; Yanbo Weng; Liang Chen; Aiguo Wu
Source:
Talanta 2012 v.94 no. pp. 271-277
ISSN:
0039-9140
Subject:
X-ray photoelectron spectroscopy; anions; cetyltrimethylammonium bromide; chemical bonding; cobalt; colorimetry; detection limit; drinking water; gold; nanogold
Abstract:
... We previously reported a colorimetric assay method for Co²⁺ based on the thioglycolic acid (TGA) functionalized hexadecyl trimethyl ammonium bromide (CTAB) modified Au NPs. However, the detection limit of 3×10⁻⁷M was still higher than that of the sanitary standard for drinking water (6.8×10⁻⁸M). In addition, the interactions between the modifier and Au NPs, and between the modifier-Au NPs and Co²⁺ ...
DOI:
10.1016/j.talanta.2012.03.039

7. A rapid colorimetric detection method of trace Cr (VI) based on the redox etching of Agcₒᵣₑ–Auₛₕₑₗₗ nanoparticles at room temperature

Author:
Junwei Xin; Fuqiang Zhang; Yuexia Gao; Yanyan Feng; Shougang Chen; Aiguo Wu
Source:
Talanta 2012 v.101 no. pp. 122-127
ISSN:
0039-9140
Subject:
absorption; aqueous solutions; cetyltrimethylammonium bromide; chromium; colorimetry; cost effectiveness; ions; nanoparticles; surface plasmon resonance; temperature
Abstract:
... A rapid colorimetric detection method of trace Cr (VI) in aqueous solutions has been developed based on non-aggregated Agcₒᵣₑ–Auₛₕₑₗₗ nanoparticles. It is based on the fact that Cr (VI) redox etches Agcₒᵣₑ–Auₛₕₑₗₗ nanoparticles at the present of bromide ions of hexadecyl trimethyl ammonium bromide (CTAB). The etching process of Agcₒᵣₑ–Auₛₕₑₗₗ nanoparticles would lead to a blue shift in the surface ...
DOI:
10.1016/j.talanta.2012.09.009

8. AN EFFECTIVE METHOD OF RNA ISOLATION FROM Fallopia multiflora TUBEROUS ROOTS

Author:
Lei Chen; Shu-Jing Sheng; Xue-mei Tan; Yan-Jing Shen; Hong-qing Li; Shu-jin Zhao
Source:
Preparative biochemistry & biotechnology 2012 v.42 no.1 pp. 87-96
ISSN:
1532-2297
Subject:
Northern blotting; RNA; Reynoutria multiflora; cDNA libraries; cetyltrimethylammonium bromide; complementary DNA; phenols; polysaccharides; reverse transcriptase polymerase chain reaction; roots; secondary metabolites; tissues
Abstract:
... To isolate high-quality total RNA from Fallopia multiflora tuberous roots is difficult because of the presence of high levels of carbohydrates, phenolics, and other secondary metabolites. Since several procedures specialized for RNA isolation from polysaccharides and phenols rich tissues have resulted in poor yields, in this study, we developed a modified protocol that was derived from the traditi ...
DOI:
10.1080/10826068.2011.566297

9. Active biocatalysts based on Candida rugosa lipase immobilized in vesicular silica

Author:
Cuicui Wu; Guowei Zhou; Xiaojie Jiang; Jingyun Ma; Huayong Zhang; Hongbin Song
Source:
Process biochemistry 2012 v.47 no.6 pp. 953-959
ISSN:
1359-5113
Subject:
Candida rugosa; Fourier transform infrared spectroscopy; adsorption; anionic surfactants; biocatalysts; catalytic activity; cationic surfactants; cetyltrimethylammonium bromide; enzyme activity; hydrolysis; micelles; nitrogen; pH; phosphates; silica; sodium dodecyl sulfate; temperature; thermal stability; triacetin
Abstract:
... Vesicular silica (VS) with hierarchical structure was prepared by utilizing cationic surfactant cetyltrimethylammonium bromide (CTAB) and anionic surfactant sodium dodecyl sulfate (SDS) as the structure directing agents, and 1,3,5-triisopropylbenzene (TIPB) as the micelle expander. The resulting unilamellar and multilamellar VS with interlamellar mean mesopore size of 15–20nm and shell thickness o ...
DOI:
10.1016/j.procbio.2012.03.004

10. Adsorbent Derived from Pinus pinaster Tannin for Cationic Surfactant Removal

Author:
J. Sánchez-Martín; J. Beltrán-Heredia; I. J. Seabra; M. E. M. Braga; H. C. de Sousa
Source:
Journal of wood chemistry and technology 2012 v.32 no.1 pp. 28-50
ISSN:
1532-2319
Subject:
Pinus pinaster; activation energy; adsorbents; adsorption; aqueous solutions; bark; cationic surfactants; cetyltrimethylammonium bromide; correlation; dyes; ethanol; gels; heavy metals; pH; pollutants; proanthocyanidins; temperature
Abstract:
... Pinus tannin gel (PTG) has proven to be an effective adsorbent for removing various cationic pollutants including heavy metals, dyes, and surfactants. The form of obtaining these condensed tannins from Pinus pinaster bark was conventional aqueous extraction using 5.0% ethanol as additive. The present study focused on the removal of the surfactant hexadecyltrimethylammonium bromide (CTAB) from aque ...
DOI:
10.1080/02773813.2011.599467

11. Adsorption of Copper(II) on NH2-MCM-41 and Its Application for Epoxidation of Styrene

Author:
Parida Kulamani; Mishra Krushna Gopal; Dash Suresh Kumar
Source:
Industrial & Engineering Chemistry Research 2012 v.51 no.5 pp. 2235-2246
ISSN:
1520-5045
Subject:
X-ray diffraction; adsorption; catalysts; cetyltrimethylammonium bromide; copper; engineering; epoxidation reactions; hydrogen peroxide; oxidants; pH; reflectance spectroscopy; scanning electron microscopy; sorption isotherms; spectral analysis; styrene; temperature; ultraviolet-visible spectroscopy
Abstract:
... Amine functionalized MCM-41 (NH₂-MCM-41) with varying amine amount (6.4, 10.2, 12.8, and 20 wt %) was prepared by the cocondensation method using cetyltrimethylammonium bromide (CTAB) as structure-directing agent (SDA), 3-aminopropyltriethoxysilane (APTES), and tetraethylorthosilicate (TEOS). The characterizations of the synthesized samples were performed by X-ray diffraction, scanning electron mi ...
DOI:
10.1021/ie200109h

12. Adsorption of an anionic dye from aqueous medium by organoclays: equilibrium modeling, kinetic and thermodynamic exploration

Author:
Adarsh S. Bhatt; Praful L. Sakaria; Manu Vasudevan; Radheshyam R. Pawar; N. Sudheesh; Hari C. Bajaj; Haresh M. Mody
Source:
RSC advances 2012 v.2 no.23 pp. 8663-8671
ISSN:
2046-2069
Subject:
Gibbs free energy; adsorbents; adsorption; aqueous solutions; bentonite; cationic surfactants; cetyltrimethylammonium bromide; clay; dyes; endothermy; heat; ion exchange; kinetics; models; sorption isotherms; standard deviation; temperature
Abstract:
... Adsorption of an anionic dye, remazole brilliant blue R (RBBR) from aqueous solution, on organically modified attapulgite (ATP) and bentonite (BNT) clays was investigated. Beneficiated attapulgite and bentonite clay samples were modified by the cationic surfactant cetyltrimethylammoniumbromide (CTAB) by the ion exchange method. The efficiency of these adsorbents for the uptake of RBBR was examined ...
DOI:
10.1039/c2ra20347b

13. Adsorption of cationic surfactants on covered hanging mercury drop electrode surface of variable area

Author:
Argyri Koniari; Antonis Avranas
Source:
Journal of colloid and interface science 2012 v.382 no.1 pp. 82-89
ISSN:
0021-9797
Subject:
adsorption; aqueous solutions; capacitance; cationic surfactants; cetyltrimethylammonium bromide; desorption; droplets; electric field; electrodes; mercury; potassium bromide; potassium chloride; surface area
Abstract:
... Cetyldimethylbenzylammonium chloride (CDBACl) or cetyltrimethylammonium bromide (CTAB) is preadsorbed on mercury and used as substrate. The adsorptive stripping voltammetry with the two-step procedure is used. The mercury droplet with the preadsorbed surfactant is expanded in aqueous solutions of KCl, KBr, CTAB, CDBACl, or cetylethyldimethylammonium bromide (CEDAB). The surface area was increased ...
DOI:
10.1016/j.jcis.2012.05.047

14. Adsorption of dye from wastewater using chitosan–CTAB modified bentonites

Author:
Jianzhong Guo; Shunwei Chen; Li Liu; Bing Li; Ping Yang; Lijun Zhang; Yanlong Feng
Source:
Journal of colloid and interface science 2012 v.382 no.1 pp. 61-66
ISSN:
0021-9797
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; activated carbon; adsorbents; adsorption; bentonite; cetyltrimethylammonium bromide; chitosan; dyeing; sorption isotherms; wastewater; water treatment
Abstract:
... Dyeing wastewater removal is important for the water treatment, and adsorption is an efficient treatment process. In this study, three modified bentonites, chitosan modified bentonite (CTS-Bent), hexadecyl trimethyl ammonium bromide (CTAB) modified bentonite (CTAB-Bent), and both chitosan and hexadecyl trimethyl ammonium bromide modified bentonite (CTS–CTAB-Bent) were prepared and characterized by ...
DOI:
10.1016/j.jcis.2012.05.044

15. Anion-specificity at water–air interface probed by total reflection X-ray fluorescence (TRXF)

Author:
Kamil Wojciechowski; Thomas Gutberlet; Oleg Konovalov
Source:
Colloids and surfaces 2012 v.413 no. pp. 184-190
ISSN:
0927-7757
Subject:
X-radiation; adsorption; anions; aqueous solutions; bromides; cationic surfactants; cetyltrimethylammonium bromide; chlorides; colloids; fluorescence; fluorides; iodides; nitrates; surface tension
Abstract:
... Accumulation of bromide ions in the Stern part of the electrical double layer (EDL) near a Gibbs monolayer of cationic surfactant, cetyltrimethylammonium bromide (CTABr), at the water–air interface was probed by the total reflection X-ray fluorescence (TRXF). A combination of TRXF with surface tension data allowed for the first time to determine the adsorbed amounts of bromide ions in the Stern an ...
DOI:
10.1016/j.colsurfa.2012.06.045

16. Aqueous Phase Synthesis of Palladium Tripod Nanostructures for Sonogashira Coupling Reactions

Author:
Chu Yi-Ting; Chanda Kaushik; Lin Po-Heng; Huang Michael H.
Source:
Langmuir 2012 v.28 no.30 pp. 11258-11264
ISSN:
1520-5827
Subject:
acetates; aqueous solutions; ascorbic acid; branches; catalysts; cetyltrimethylammonium bromide; copper; halides; mixing; nanocrystals; palladium; pods; surfactants
Abstract:
... In this work, palladium tripod nanocrystals have been synthesized by mixing an aqueous solution of cetyltrimethylammonium bromide (CTAB) surfactant, Na₂PdCl₄, copper acetate, and ascorbic acid at 30 °C for 3 h. Addition of a small amount of copper ion source is critical to the formation of these tripods with a pod length reaching 100 nm. The incorporation of Cu atoms into the Pd tripods has been v ...
DOI:
10.1021/la302284m

17. Au-colloids–polypyrrole nanocomposite film based xanthine biosensor

Author:
Rooma Devi; Sandeep Yadav; C.S. Pundir
Source:
Colloids and surfaces 2012 v.394 no. pp. 38-45
ISSN:
0927-7757
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; beef; biosensors; cetyltrimethylammonium bromide; chickens; colloids; detection limit; dielectric spectroscopy; electrodes; fish; glutaraldehyde; gold; nanocomposites; pH; platinum; pork; scanning electron microscopy; transmission electron microscopy; xanthine; xanthine oxidase
Abstract:
... Stable colloids of Au/polypyrrole (AuPPy) nanocomposites were prepared by oxidizing pyrrole monomer with HAuCl₄ in a cetyltrimethylammonium bromide (CTAB) solution and cast on the platinum (Pt) electrode. Xanthine oxidase (XOD) was immobilized onto this nanocomposite film through glutaraldehyde. The AuPPy/Pt electrode was characterized by Fourier transform infrared (FTIR), cyclic voltammetry (CV), ...
DOI:
10.1016/j.colsurfa.2011.11.021

18. Au–Pd Alloy and Core–Shell Nanostructures: One-Pot Coreduction Preparation, Formation Mechanism, and Electrochemical Properties

Author:
Kuai Long; Yu Xue; Wang Shaozhen; Sang Yan; Geng Baoyou
Source:
Langmuir 2012 v.28 no.18 pp. 7168-7173
ISSN:
1520-5827
Subject:
alloys; catalysts; catalytic activity; cetyltrimethylammonium bromide; electrochemistry; gold; nanomaterials; oxygen; palladium
Abstract:
... It is a known fact that Pd-based bimetallic nanostructures possess unique properties and excellent catalytic performance. In this work, the Au–Pd alloy and core–shell nanostructures have been prepared by a simple one-pot hydrothermal coreduction route, and their formation process and mechanism are discussed in detail. A reducing capacity-induced controlled reducing mechanism is proposed for the fo ...
DOI:
10.1021/la300813z

19. CTAB, Triton X-100 and freezing–thawing treatments of Candida guilliermondii: Effects on permeability and accessibility of the glucose-6-phosphate dehydrogenase, xylose reductase and xylitol dehydrogenase enzymes

Author:
Daniela Vieira Cortez; Inês Conceição Roberto
Source:
New biotechnology 2012 v.29 no.2 pp. 192-198
ISSN:
1871-6784
Subject:
Meyerozyma guilliermondii; metabolism; NADP-glucose-6-phosphate dehydrogenase; xylose; cetyltrimethylammonium bromide; yeasts; freeze-thaw cycles; surfactants; xylitol; pH; biotransformation; permeability; octoxynol
Abstract:
... Cells of Candida guilliermondii (ATCC 201935) were permeabilised with surfactant treatment (CTAB or Triton X-100) or a freezing–thawing procedure. Treatments were monitored by in situ activities of the key enzymes involved in xylose metabolism, that is, glucose-6-phosphate dehydrogenase (G6PD), xylose reductase (XR) and xylitol dehydrogenase (XD). The permeabilising ability of the surfactants was ...
DOI:
10.1016/j.nbt.2011.05.011

20. CTAB-mediated synthesis of iron–nickel alloy nanochains and their magnetic properties

Author:
Xuegang Lu; Qianru Liu; Ge Huo; Gongying Liang; Qianjin Sun; Xiaoping Song
Source:
Colloids and surfaces 2012 v.407 no. pp. 23-28
ISSN:
0927-7757
Subject:
alloys; cetyltrimethylammonium bromide; colloids; magnetic properties; nanoparticles; permeability; temperature
Abstract:
... One-dimensional nanochains consisting of crystalline iron–nickel nanoparticles were successfully synthesized by a simple cetyltrimethylammonium bromide (CTAB) mediated assembly method. The structure and magnetic properties of the nanochains were investigated. The product is composed of nanochains with a diameter of about 90–110nm and length about several micrometers. A possible formation mechanism ...
DOI:
10.1016/j.colsurfa.2012.04.048

21. CTAB/Water/Chloroform Reverse Micelles: A Closed or Open Association Model?

Author:
Klíčová L'ubica; Šebej Peter; Štacko Peter; Filippov Sergey K.; Bogomolova Anna; Padilla Marc; Klán Petr
Source:
Langmuir 2012 v.28 no.43 pp. 15185-15192
ISSN:
1520-5827
Subject:
calorimetry; cetyltrimethylammonium bromide; chlorides; chloroform; micelles; models; nuclear magnetic resonance spectroscopy; surfactants; titration; water content
Abstract:
... The micellization of cetyltrimethylammonium bromide (CTAB) in chloroform in the presence of water was examined. Three scenarios of the reverse micelle formation, the closed, open and Eicke’s association models, were considered in the interpretation of the experimental data. The growth of the aggregates was observed through the changes of NMR signals of associated water, probing the microenvironmen ...
DOI:
10.1021/la303245e

22. Cadmium (II) imprinted 3-mercaptopropyltrimethoxysilane coated stir bar for selective extraction of trace cadmium from environmental water samples followed by inductively coupled plasma mass spectrometry detection

Author:
Nan Zhang; Bin Hu
Source:
Analytica chimica acta 2012 v.723 no. pp. 54-60
ISSN:
0003-2670
Subject:
Fourier transform infrared spectroscopy; adsorption; cadmium; cetyltrimethylammonium bromide; coatings; detection limit; ethanol; glass; ions; lakes; mass spectrometry; micelles; mixing; pH; rain; rapid methods; river water; solvents; surfactants; Yangtze River
Abstract:
... Cd(II) imprinted 3-mercaptopropyltrimethoxysilane (MPTS)-silica coated stir bar was prepared by sol–gel technique combining with a double-imprinting concept for the first time and was employed for stir bar sorptive extraction (SBSE) of trace Cd(II) from water samples followed by inductively coupled plasma mass spectrometry (ICP-MS) detection. A tetramethoxysilane (TMOS) coating was first in situ c ...
DOI:
10.1016/j.aca.2012.02.027

23. Caffeine-Mediated Detachment of Mutagenic Ethidium from Various Nanoscopic Micelles: An Ultrafast Förster Resonance Energy Transfer Study

Author:
Banerjee Soma; Tachiya Masanori; Pal Samir Kumar
Source:
Journal of physical chemistry 2012 v.116 no.27 pp. 7841-7848
ISSN:
1520-5207
Subject:
DNA; aqueous solutions; caffeine; cetyltrimethylammonium bromide; dissociation; energy transfer; epithelial cells; ethidium; fluorescence; micelles; models; mutagens; octoxynol; physical chemistry; sodium dodecyl sulfate; solubilization; spectral analysis
Abstract:
... In the present study we explore the efficacy of caffeine in dissociating the ethidium (Et) molecule, a model DNA-intercalator as well as a potential mutagen, from nanometer sized micelles of various charges. Steady-state and picosecond-resolved spectroscopic studies on the detachment of Et from various biomimicking micelles of different charges (cationic hexadecyltrimethylammonium bromide (CTAB), ...
DOI:
10.1021/jp302734e

24. Capillary electrophoresis – A new tool for ionic analysis of exhaled breath condensate

Author:
Petr Kubáň; Eeva-Gerda Kobrin; Mihkel Kaljurand
Source:
Journal of chromatography 2012 v.1267 no. pp. 239-245
ISSN:
0021-9673
Subject:
silica; detection limit; exercise; monitoring; cetyltrimethylammonium bromide; inflammation; cations; chromatography; capillary electrophoresis; anions; screening; nitrites; histidine
Abstract:
... Exhaled breath condensate has been analyzed for its ionic content by capillary electrophoresis with capacitively coupled contactless conductometric detection. A simple device for collection of small volumes (100–200μL) of exhaled breath condensate in less than 2min was developed. A method for simultaneous determination of inorganic cations, inorganic anions and organic anions from the samples usin ...
DOI:
10.1016/j.chroma.2012.06.085

25. Cationic Surfactants: Potential Surface Disinfectants to Manage Agrobacterium tumefaciens Biovar 1 Contamination of Grafting Tools

Author:
Yakabe L. E.; Parker S. R.; Kluepfel D. A.
Source:
Plant disease 2012 v.96 no.3 pp. 409-415
ISSN:
0191-2917
Subject:
Agrobacterium radiobacter; Datura stramonium; benzalkonium chloride; cationic surfactants; cetyltrimethylammonium bromide; crown galls; disinfectants; scalpels; seedlings; sodium hypochlorite; stems; total solids; walnuts
Abstract:
... Nursery production of walnut seedlings is a 2-year process, during which crown gall, caused by Agrobacterium tumefaciens, often develops at grafting wounds. In this study, the spread of crown gall via contaminated tools and the efficacy of several disinfectants against A. tumefaciens were demonstrated. The cationic surfactants benzalkonium chloride (BC), cetyltrimethylammonium bromide (CTAB), and ...
DOI:
10.1094/PDIS-11-10-0839

26. Cetyltrimethylammonium bromide intercalated graphene/polypyrrole nanowire composites for high performance supercapacitor electrode

Author:
Lu Mao; Hardy Sze On Chan; Jishan Wu
Source:
RSC advances 2012 v.2 no.28 pp. 10610-10617
ISSN:
2046-2069
Subject:
capacitance; cetyltrimethylammonium bromide; electrochemistry; electrodes; electrolytes; graphene; nanosheets; nanowires; polymerization; pyrroles; sulfuric acid
Abstract:
... Polypyrrole (PPy) nanowires were prepared by in situ polymerization of pyrrole in the presence of cetyltrimethylammonium bromide stabilized graphene (GCR). PPy nanowire/GCR composites with different loading ratios were tested as supercapacitor electrode materials in both 1 M H₂SO₄ (aq) and 1 M KCl (aq) electrolytes, and different electrochemical behaviors were observed. The incorporation of GCR na ...
DOI:
10.1039/c2ra21617e

27. Compaction and Decompaction of DNA Induced by the Cationic Surfactant CTAB

Author:
Grueso E.; Cerrillos C.; Hidalgo J.; Lopez-Cornejo P.
Source:
Langmuir 2012 v.28 no.30 pp. 10968-10979
ISSN:
1520-5827
Subject:
DNA; calves; cationic surfactants; cetyltrimethylammonium bromide; thymus gland
Abstract:
... A multifaceted study on the interaction of the cationic surfactant CTAB with calf thymus DNA was carried out by using different techniques. The measurements were done at different molar ratios X = [CTAB]/[DNA]. Results show the conformational change that DNA suffers due to the interaction with surfactant molecules at low molar ratios: the condensation of the polynucleotide, from an extended coil s ...
DOI:
10.1021/la302373m

28. Comparative Analysis of two DNA Extraction Protocols from Fresh and Dried wood of Cunninghamia Lanceolata (Taxodiaceae)

Author:
Lichao Jiao; Yafang Yin; Fuming Xiao; Qingpeng Sun; Kunlin Song; Xiaomei Jiang
Source:
IAWA journal v.33 no.4 pp. 441-456
ISSN:
0928-1541
Subject:
Cunninghamia lanceolata; amyloplasts; cetyltrimethylammonium bromide; chloroplast DNA; drying; heartwood; polymerase chain reaction; ribosomal DNA; sapwood; wood
Abstract:
... DNA was isolated from the sapwood, transition wood and heartwood of fresh and dried Cunninghamia lanceolata wood using two DNA extraction protocols: the modified CTAB method and the modified Qiagen kit. Our major objective was to (i) determine an optimized method for retrieving good quality and sufficient quantity of DNA from wood, and to (ii) investigate the effect of different radial positions o ...
DOI:
10.1163/22941932-90000106

29. Comparison investigation of the effects of ionic surfactants on the crystallization behavior of calcium oxalate: From cationic to anionic surfactant

Author:
Xiaoxiao Wei; Jian Yang; Zhiyong Li; Yunlan Su; Dujin Wang
Source:
Colloids and surfaces 2012 v.401 no. pp. 107-115
ISSN:
0927-7757
Subject:
X-ray diffraction; anionic surfactants; calcium chloride; calcium oxalate; cationic surfactants; cetyltrimethylammonium bromide; colloids; crystal structure; crystallization; particle size; scanning electron microscopy; sodium dodecyl sulfate; temperature
Abstract:
... Calcium oxalate particles with different morphologies and phase structures were prepared by a facile precipitation reaction of sodium oxalate with calcium chloride in the presence of sodium dodecyl sulfate (SDS) and cetyltrimethylammonium bromide (CTAB) at different temperatures. The as-prepared products were characterized with scanning electron microscopy (SEM) and X-ray diffraction (XRD). It was ...
DOI:
10.1016/j.colsurfa.2012.03.034

30. Condensation and Decondensation of DNA by Cationic Surfactant, Spermine, or Cationic Surfactant–Cyclodextrin Mixtures: Macroscopic Phase Behavior, Aggregate Properties, and Dissolution Mechanisms

Author:
Carlstedt Jonas; Lundberg Dan; Dias Rita S.; Lindman Björn
Source:
Langmuir 2012 v.28 no.21 pp. 7976-7989
ISSN:
1520-5827
Subject:
DNA; bromides; cationic surfactants; cetyltrimethylammonium bromide; hydrophobic bonding; physicochemical properties; separation; spermine
Abstract:
... The macroscopic phase behavior and other physicochemical properties of dilute aqueous mixtures of DNA and the cationic surfactant hexadecyltrimethylammounium bromide (CTAB), DNA and the polyamine spermine, or DNA, CTAB, and (2-hydroxypropyl)-β-cyclodextrin (2HPβCD) were investigated. When DNA is mixed with CTAB we found, with increasing surfactant concentration, (1) free DNA coexisting with surfac ...
DOI:
10.1021/la300266h

31. Control of α-Calcium Sulfate Hemihydrate Morphology Using Reverse Microemulsions

Author:
Kong Bao; Guan Baohong; Yates Matthew Z.; Wu Zhongbiao
Source:
Langmuir 2012 v.28 no.40 pp. 14137-14142
ISSN:
1520-5827
Subject:
adsorption; bromides; calcium sulfate; cetyltrimethylammonium bromide
Abstract:
... Alpha calcium sulfate hemihydrate (α-HH) is an important class of cementitious material and exhibits considerable morphology-dependent properties. In the reverse microemulsions of water/n-hexanol/cetyltrimethylammonium bromide (CTAB)/sodium dodecyl sulfonate (SDS), the morphology and aspect ratio of α-HH are successfully controlled by adjusting the mass ratio of CTAB/H₂O and the concentration of S ...
DOI:
10.1021/la302459z

32. Controllable Self-Assembling of Gold Nanorods via On and Off Supramolecular Noncovalent Interactions

Author:
Ma Xiang; Urbas Augustine; Li Quan
Source:
Langmuir 2012 v.28 no.47 pp. 16263-16267
ISSN:
1520-5827
Subject:
beta-cyclodextrin; cetyltrimethylammonium bromide; chemical interactions; electrostatic interactions; nanorods; porphyrins
Abstract:
... 5,15-Bis(4-sulfonatophenyl)porphyrin (DPPS) with a planar conjugated system and two negative charges was found to be able to engender the self-assembling of CTAB-GNRs due to the electrostatic interaction between DPPS and CTAB together with the π–π intermolecular interaction of DPPS, while its bulky supramolecular pseudo[3]rotaxane included by β-cyclodextrin prevented such self-assembling due to th ...
DOI:
10.1021/la303424x

33. Controlling aspect ratio of colloidal silver nanorods using response surface methodology

Author:
M. Reza Hormozi-Nezhad; Mehdi Jalali-Heravi; Hossein Robatjazi; Heshmatollah Ebrahimi-Najafabadi
Source:
Colloids and surfaces 2012 v.393 no. pp. 46-52
ISSN:
0927-7757
Subject:
ascorbic acid; cetyltrimethylammonium bromide; colloids; ions; mathematical models; nanorods; prediction; reducing agents; response surface methodology; silver; sodium citrate; wavelengths
Abstract:
... The properties of metallic nanorods vary due to changes in their composition, size and shape, which all depend on the aspect ratio of the nanorods. This work focuses on the optimization of the aspect ratio of silver nanorods using response surface methodology (RSM). Seed-mediated approach, which is the newest method with less difficulty, has been used for the synthesis of silver nanorods. First, s ...
DOI:
10.1016/j.colsurfa.2011.10.023

34. Cooperative Template-Directed Assembly of Mesoporous Metal–Organic Frameworks

Author:
Sun Lin-Bing; Li Jian-Rong; Park Jinhee; Zhou Hong-Cai
Source:
Journal of the American Chemical Society 2012 v.134 no.1 pp. 126-129
ISSN:
1520-5126
Subject:
cetyltrimethylammonium bromide; chelating agents; citric acid; coordination polymers; micelles; microspores; porous media; surfactants
Abstract:
... Despite great efforts, the development of a reliable way to assemble mesoporous metal–organic frameworks (mesoMOFs) remains a challenge. In this work, we have designed a cooperative template system, comprising a surfactant (cetyltrimethylammonium bromide) and a chelating agent (citric acid), for the generation of a mesoMOF containing a hierarchical system of mesopores interconnected with microspor ...
DOI:
10.1021/ja209698f

35. Cooperatively exfoliated fluorinated graphene with full-color emission

Author:
Zhaofeng Wang; Jinqing Wang; Zhangpeng Li; Peiwei Gong; Junfang Ren; Honggang Wang; Xiuxun Han; Shengrong Yang
Source:
RSC advances 2012 v.2 no.31 pp. 11681-11686
ISSN:
2046-2069
Subject:
X-ray photoelectron spectroscopy; cetyltrimethylammonium bromide; chemical composition; dopamine; energy-dispersive X-ray analysis; fluorides; graphene; light emitting diodes; luminescence
Abstract:
... We report a novel and effective method to prepare fluorinated graphene sheets (FGS) by the cooperative exfoliation of graphite fluoride using cetyl-trimethyl-ammonium bromide and dopamine. This facile, scalable preparation route results in wide (about 2 μm in width), long (at least 3 μm in length) and ultrathin (1–2 layers) FGS with uniform morphology. The chemical composition of FGS was character ...
DOI:
10.1039/c2ra21871b

36. Copper nanoparticles incorporated with conducting polymer: Effects of copper concentration and surfactants on the stability and conductivity

Author:
Long Quoc Pham; Jong Hwa Sohn; Chang Woo Kim; Ji Hyun Park; Hyun Suk Kang; Byung Cheol Lee; Young Soo Kang
Source:
Journal of colloid and interface science 2012 v.365 no.1 pp. 103-109
ISSN:
0021-9797
Subject:
aqueous solutions; cetyltrimethylammonium bromide; copper; hydrazine; nanoparticles; polymers; stabilizers; surfactants
Abstract:
... Copper nanoparticles are prepared in aqueous solution by reducing copper ions with hydrazine hydrate in the presence of cetyl trimethylammonium bromide (CTAB) and polyvinylpyrrolydone (PVP) as stabilizers. With only CTAB was used as stabilizer, copper nanoparticles are aggregated and partially oxidized to Cu₂O. When both PVP and CTAB were used, dispersed copper nanoparticles with 56nm diameter wer ...
DOI:
10.1016/j.jcis.2011.09.041

37. Correlating Proton Transfer Dynamics To Probe Location in Confined Environments

Author:
Sedgwick Myles; Cole Richard L.; Rithner Christopher D.; Crans Debbie C.; Levinger Nancy E.
Source:
Journal of the American Chemical Society 2012 v.134 no.29 pp. 11904-11907
ISSN:
1520-5126
Subject:
absorption; aqueous solutions; cetyltrimethylammonium bromide; micelles; nuclear magnetic resonance spectroscopy; surfactants
Abstract:
... The dramatic impact of differing environments on proton transfer dynamics of the photoacid HPTS prompted us to investigate these systems with two highly complementary methods: ultrafast time-resolved transient absorption and two-dimensional NMR spectroscopies. Both ultrafast time-resolved transient absorption spectroscopy and time-resolved anisotropy decays demonstrate the proton transfer dynamics ...
DOI:
10.1021/ja304529v

38. Covalently Functionalized Single-Walled Carbon Nanotubes at Reverse Micellar Interface: A Strategy to Improve Lipase Activity

Author:
Ghosh Moumita; Maiti Subhabrata; Dutta Sounak; Das Dibyendu; Das Prasanta Kumar
Source:
Langmuir 2012 v.28 no.3 pp. 1715-1724
ISSN:
1520-5827
Subject:
Fourier transform infrared spectroscopy; carbon nanotubes; carboxylic ester hydrolases; cetyltrimethylammonium bromide; chemical bonding; circular dichroism spectroscopy; enzyme activity; ethylene; fluorescein; fluorescence; hydrophilicity; hydrophobicity; isothiocyanates; micelles; moieties; nanohybrids; polyethylene glycol; transmission electron microscopy
Abstract:
... The present work reports covalent functionalization of single-walled carbon nanotubes (f-SWNTs) to introduce hydrophilicity to the otherwise amphiphobic nanotubes. The charge and spacer length of the functional moiety were varied by using quaternized ethylene diamine, 6-aminocaproate, quaternized (ethylenedioxy)bis(ethylamine), and a poly(ethylene glycol) (PEG) unit (f-SWNT-1 to f-SWNT-4, respecti ...
DOI:
10.1021/la2035906

39. DNA extraction and PCR (Polymorphism Chain Reaction) optimization for RAPD markers application in Stipa lagascae

Author:
Abdellaoui Raoudha; Sayah Amel; Gouja Hassen; Ouled Belgacem Azeiz
Source:
Acta botanica Gallica 2012 v.159 no.1 pp. 73-78
ISSN:
2166-3408
Subject:
DNA; EDTA (chelating agent); Stipa; cetyltrimethylammonium bromide; genetic variation; glucose; magnesium chloride; metabolites; molecular biology; pH; polyphenols; polysaccharides; random amplified polymorphic DNA technique; sodium chloride; spectral analysis
Abstract:
... The isolation of intact, high-molecular-mass genomic DNA is essential for many molecular biology. In many plants, the quality of the extracted DNA is not appreciated because of metabolites that interfere with DNA isolation procedures and subsequent applications. In this study we developed an efficient and reliable method for isolating Stipa lagascae Roem. & Schult. DNA free from polysaccharides an ...
DOI:
10.1080/12538078.2012.671646

40. Determination of free and total valproic acid in human plasma by capillary electrophoresis with contactless conductivity detection

Author:
Thi Thanh Thuy Pham; Hong Heng See; Réjane Morand; Stephan Krähenbühl; Peter C. Hauser
Source:
Journal of chromatography 2012 v.907 no. pp. 74-78
ISSN:
1570-0232
Subject:
capillary electrophoresis; centrifugation; cetyltrimethylammonium bromide; chromatography; detection limit; electrolytes; filtrates; histidine; humans; immunoassays; liquid-phase microextraction; pH; ultrafiltration; valproic acid
Abstract:
... A new approach for the determination of free and total valproic acid in small samples of 140μL human plasma based on capillary electrophoresis with contactless conductivity detection is proposed. A dispersive liquid–liquid microextraction technique was employed in order to remove biological matrices prior to instrumental analysis. The free valproic acid was determined by isolating free valproic ac ...
DOI:
10.1016/j.jchromb.2012.08.037

41. Determination of hydroxycarboxylic acids in food products by capillary electrophoresis

Author:
A. M. Golubenko; V. V. Nikonorov; T. G. Nikitina
Source:
Journal of analytical chemistry 2012 v.67 no.9 pp. 778-782
ISSN:
1061-9348
Subject:
EDTA (chelating agent); beers; capillary electrophoresis; cetyltrimethylammonium bromide; citric acid; ethanolamine; fruits; juices; lactic acid; malic acid; nitrobenzoic acids; pH; tartaric acid; wines
Abstract:
... A procedure for the capillary-electrophoretic determination of lactic, malic, tartaric, and citric acids in food products was developed. The use of 3-nitrobenzoic acid as a light-absorbing component of the running buffer was proposed for the indirect photometric detection of these substances. This considerably increased the determination sensitivity (up to n × 10 μg/L), as compared with currently ...
DOI:
10.1134/S1061934812090055

42. Development of a fast capillary electrophoresis method for determination of carbohydrates in honey samples

Author:
Viviane Maria Rizelio; Laura Tenfen; Roberta da Silveira; Luciano Valdemiro Gonzaga; Ana Carolina Oliveira Costa; Roseane Fett
Source:
Talanta 2012 v.93 no. pp. 62-66
ISSN:
0039-9140
Subject:
buffering capacity; capillary electrophoresis; cetyltrimethylammonium bromide; computer software; detection limit; electrolytes; fructose; glucose; honey; pH; quantitative analysis; sodium hydroxide; sorbic acid; sucrose
Abstract:
... In this study, the determination of fructose, glucose and sucrose by capillary electrophoresis (CE) was investigated. The tendency of the analyte to undergo electromigration dispersion and the buffer capacity were evaluated using the Peakmaster® software and considered in the optimization of the background electrolyte, which was composed of 20mmolL⁻¹ sorbic acid, 0.2mmolL⁻¹ CTAB and 40mmolL⁻¹ NaOH ...
DOI:
10.1016/j.talanta.2012.01.034

43. Direct formation of iron oxide/MCM-41 nanocomposites via single or mixed n-alkyltrimethylammonium bromide surfactants

Author:
Kamal M.S. Khalil; Mai M. Khalaf; Hossnia S. Mohran; Ahmed A. Elsamahy
Source:
Journal of colloid and interface science 2012 v.368 no.1 pp. 56-63
ISSN:
0021-9797
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; adsorption; ambient temperature; cetyltrimethylammonium bromide; desorption; differential scanning calorimetry; ferric oxide; iron; mixing; nanocomposites; nanoparticles; nitrates; nitrogen; porosity; surface area; surfactants; thermogravimetry
Abstract:
... Iron oxide/MCM-41 nanocomposites, Fe₂O₃/MCM-41, containing 5%, 10%, and 20% (w/w) iron oxide, were prepared via a direct nonhydrothermal method at room temperature. The preparations were preformed by using iron(III) nitrate, tetra-ethoxysilane (TEOS), and cetyltrimethylammonium bromide (CTAB) mixed or unmixed with dodecyltrimethylammonium bromide (DTAB). The produced materials were dried and calci ...
DOI:
10.1016/j.jcis.2011.11.027

44. Direct synthesis of hierarchical LTA zeolite via a low crystallization and growth rate technique in presence of cetyltrimethylammonium bromide

Author:
Fatin Hasan; Ranjeet Singh; Gang Li; Dongyuan Zhao; Paul A. Webley
Source:
Journal of colloid and interface science 2012 v.382 no.1 pp. 1-12
ISSN:
0021-9797
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; adsorption; ambient temperature; cetyltrimethylammonium bromide; colloids; crystallization; ethylene; gels; micelles; nanocrystallites; nitrogen; nuclear magnetic resonance spectroscopy; pH; porosity; scanning electron microscopy; surfactants; transmission electron microscopy; zeolites; zeta potential
Abstract:
... Slow crystallization and growth rate at room temperature in the presence of surfactant micelles is a new strategy used to synthesize hierarchical Na–A zeolites. The observed structure of the hierarchical materials was consistent with a two stage growth mechanism. During the early stage of the gel evolution, miniature zeolite gel particles were formed and assembled around surfactant (cetyltrimethyl ...
DOI:
10.1016/j.jcis.2012.05.027

45. EPR and Circular Dichroism Solution Studies on the Interactions of Bovine Serum Albumin with Ionic Surfactants and β-Cyclodextrin

Author:
Rogozea Adina; Matei Iulia; Turcu Ioana M.; Ionita Gabriela; Sahini Victor Em.; Salifoglou Athanasios
Source:
Journal of physical chemistry 2012 v.116 no.49 pp. 14245-14253
ISSN:
1520-5207
Subject:
anionic surfactants; beta-cyclodextrin; bovine serum albumin; cationic surfactants; cetyltrimethylammonium bromide; chemical elements; circular dichroism spectroscopy; denaturation; electron paramagnetic resonance spectroscopy; hydrophobicity; iodides; protein aggregates; protein conformation; sodium dodecyl sulfate
Abstract:
... The interactions of bovine serum albumin (BSA) with ionic surfactants (sodium dodecyl sulfate, SDS, and cetyltrimethylammonium bromide, CTAB) and β-cyclodextrin (β-CD) have been investigated by electron paramagnetic resonance (EPR) and circular dichroism measurements. The spin probe selected to report on the interaction of albumin with surfactants and/or β-CD was 4-N,N-dimethyl hexadecyl ammonium- ...
DOI:
10.1021/jp308650r

46. Effect of [CTAB]–[SiO₂] ratio on the formation and stability of hexadecane/water emulsions in the presence of NaCl

Author:
Benoît Fouconnier; Angélica Román-Guerrero; E. Jaime Vernon-Carter
Source:
Colloids and surfaces 2012 v.400 no. pp. 10-17
ISSN:
0927-7757
Subject:
adsorption; cetyltrimethylammonium bromide; colloids; droplet size; droplets; emulsions; hexadecane; ionic strength; light scattering; microscopy; silica; sodium chloride
Abstract:
... The formation and stability of hexadecane (H)/water (W) emulsions stabilized by mixtures of cetyltrimethylammonium bromide (CTAB) and SiO₂ particles in decreasing ratios (R₁, R₂ and R₃) in presence of NaCl at constant ionic strength as a co-stabilizer was investigated. Interfacial creep compliance-time studies of the CTAB–SiO₂ films at the H–W interface were carried out in order to understand the ...
DOI:
10.1016/j.colsurfa.2012.02.035

47. Effects of Interaction of Ionic and Nonionic Surfactants on Self-Assembly of PEO–PPO–PEO Triblock Copolymer in Aqueous Solution

Author:
Nambam J. S.; Philip John
Source:
Journal of physical chemistry 2012 v.116 no.5 pp. 1499-1507
ISSN:
1520-5207
Subject:
aqueous solutions; autocorrelation; cetyltrimethylammonium bromide; composite polymers; micelles; microstructure; modulus of elasticity; nanocarriers; nonionic surfactants; sodium dodecyl sulfate; temperature; viscoelasticity; zeta potential
Abstract:
... We study the effects of interaction of surfactants on the self-assembly of a triblock copolymer in aqueous solution by measuring percolation transition temperature (Tₚ), micellar size, zeta potential, and rheological properties. We use PEO–PPO–PEO triblock copolymer (Pluronics-F108) with anionic sodium dodecyl sulfate (SDS), cationic cetyltrimethylammonium bromide (CTAB), and nonionic nonylphenole ...
DOI:
10.1021/jp208902a

48. Effects of ionic surfactants on the morphology of silver nanoparticles using Paan (Piper betel) leaf petiole extract

Author:
Zaheer Khan; Ommer Bashir; Javed Ijaz Hussain; Sunil Kumar; Rabia Ahmad
Source:
Colloids and surfaces 2012 v.98 no. pp. 85-90
ISSN:
0927-7765
Subject:
Piper; absorbance; betel; cetyltrimethylammonium bromide; colloids; ions; leaf extracts; nanoparticles; nanosilver; petioles; silver; sodium dodecyl sulfate; surfactants; transmission electron microscopy; ultraviolet-visible spectroscopy
Abstract:
... Stable silver nanoparticles were synthesized by the reduction of silver ions with a Paan (Piper betel) leaf petiole extract in absence and presence of cetyltrimethylammonium bromide (CTAB) and sodium dodecyl sulphate (SDS). The reaction process was simple and convenient to handle, and was monitored using ultraviolet-visible spectroscopy. Absorbance of Ag-nanoparticles increases with the concentrat ...
DOI:
10.1016/j.colsurfb.2012.04.033

49. Electrochemical studies of quinine in surfactant media using hanging mercury drop electrode: A cyclic voltammetric study

Author:
Riyaz Ahmad Dar; Pradeep Kumar Brahman; Sweety Tiwari; Krishna Sadashiv Pitre
Source:
Colloids and surfaces 2012 v.98 no. pp. 72-79
ISSN:
0927-7765
Subject:
Cinchona; bark; buffers; cetyltrimethylammonium bromide; colloids; detection limit; electrochemistry; electrodes; food additives; mercury; nitrogen; pH; quantitative analysis; quinine; quinoline; soft drinks; surfactants
Abstract:
... The electrochemical behavior of quinine was investigated by cyclic voltammetry (CV) and square wave voltammetry (SWV) using surfactant. The reduction peak current of quinine increases remarkably in presence of 1% CTAB. Its electrochemical behavior is quasi-reversible in the Britton–Robinson buffers of pH 10.38 by exhibiting the well-defined single cathodic and anodic waves and the ratio of Iₚ ᵃ/Iₚ ...
DOI:
10.1016/j.colsurfb.2012.04.035

50. Electrospinning preparation and drug delivery properties of Eu³⁺/Tb³⁺ doped mesoporous bioactive glass nanofibers

Author:
Shanshan Huang; Xiaojiao Kang; Ziyong Cheng; Ping’an Ma; Ye Jia; Jun Lin
Source:
Journal of colloid and interface science 2012 v.387 no.1 pp. 285-291
ISSN:
0021-9797
Subject:
biocompatibility; cetyltrimethylammonium bromide; cytotoxicity; drug delivery systems; emissions factor; fibroblasts; glass; ibuprofen; light intensity; nanofibers; nitrogen; photoluminescence; porosity; surface area
Abstract:
... Luminescent Eu³⁺/Tb³⁺ doped mesoporous bioactive glass nanofibers (MBGNFs) with average diameter of 100–120nm were fabricated by electrospinning method. Pluronic P123 and N-cetyltrimethylammonium bromide (CTAB) were used as co-surfactants to generate porous structure of the nanofibers. N₂ adsorption–desorption measurement reveals that the MBGNF:Eu³⁺ have a surface area of 188m²g⁻¹, a pore volume o ...
DOI:
10.1016/j.jcis.2012.08.004