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374598

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Mohammad Behbahani et al.
Journal of chromatography. A, 1308, 25-31 (2013-08-21)
A simple, rapid, and efficient method, based on surfactant assisted dispersive liquid-liquid microextraction (SA-DLLME), followed by high performance liquid chromatography (HPLC) has been developed for simultaneous preconcentration and trace detection of zonisamide and carbamazepine in biological samples. A conventional cationic
Brandy J Johnson et al.
PloS one, 7(11), e50356-e50356 (2012-12-12)
The potential for encapsulating RNA within tunable, semi-permeable structures for storage and transportation purposes offers an interesting approach to the reduction of stringent storage requirements that often hamper the field application of genetic analysis methods. In this study, we assessed
Ruggero Angelico et al.
Physical chemistry chemical physics : PCCP, 15(2), 586-595 (2012-11-28)
The aim of the present study was to provide experimental evidence that base pairing, commonly occurring between nucleic bases in more complex supramolecular arrangements, may affect the reaction pathways associated with the alkylation of bases themselves. In pursuit of this
Qin Zhou et al.
Chemosphere, 90(9), 2461-2466 (2012-12-12)
The hexadecyltrimethylammonium bromide (HDTMAB) immobilized hollow mesoporous silica spheres were prepared for the efficient removal of perfluorooctane sulfonate (PFOS) from aqueous solution. Besides the traditional sorption behavior including sorption kinetics as well as effect of solution pH and temperature, the
Amit Kumar Mandal et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 14(4), 788-796 (2012-11-13)
Femtosecond upconversion, single-molecule fluorescence resonance energy transfer (sm-FRET) and fluorescence correlation spectroscopy (FCS) are applied to study the competition between excited-state proton transfer (ESPT) and FRET [to rhodamine 6G (R6G)] of 8-hydroxypyranine-1,3,6-trisulfonate (HPTS) in cetyltrimethylammonium chloride (CTAC) micelles. Pyranine exhibits
Esther Navarro-Escobar et al.
Journal of applied oral science : revista FOB, 21(1), 74-79 (2013-04-06)
To assess the influence of final irrigation protocols with chlorhexidine in the coronal leakage of Enterococcus faecalis in filled root canals. Seventy single-root canals from extracted teeth were prepared using ProTaper instruments. The irrigation protocol accomplished an alternating irrigation with
Jyothi C Abbar et al.
Colloids and surfaces. B, Biointerfaces, 106, 158-164 (2013-02-26)
An electrochemical method has been described for the voltammetric oxidation and determination of an antihyperlipoproteinemic drug, atorvastatin (ATOR), at a carbon paste electrode (CPE) in the presence of an enhancing agent, cetyltrimethyl ammonium bromide (CTAB) using cyclic and differential pulse
Haiyu Tian et al.
Analytica chimica acta, 768, 136-142 (2013-03-12)
In this paper, two colorimetric and turn-on fluorescent probes N-[2-(2-hydroxy)-ethoxy] ethyl-4-azido-1,8-naphthalimide (SS1) and N-butyl-4-azido-1,8-naphthalimide (SS2) for selective recognition of H2S were designed and synthesized. The probes were constructed by incorporating an azido group into the naphthalimide fluorophore as a specifical
Yin-Ming Li et al.
Environmental technology, 35(17-20), 2556-2568 (2014-08-26)
This study was carried out to develop a cost-effective and practicable sorbent for application in abrupt perfluorooctane sulphonate (PFOS) pollution accidents. The main merit of this work was that a waste material, namely construction and demolition (C&D) waste, was employed
Zaheer Khan et al.
Colloids and surfaces. B, Biointerfaces, 104, 11-17 (2013-01-10)
Upon addition of tetrachloroauric(III) (HAuCl(4)) to a solution of cetyltrimethylammonium bromide (CTAB), a perfect transparent yellow colored and yellowish-precipitate appears within the time of mixing, indicating the formation of a complex between HAuCl(4) and CTAB. Morphology of gold nanoparticles in
Catalytic asymmetric alkylation in water in the presence of surfactants
Sinou D, et al.
Advanced Synthesis & Catalysis, 345(3), 357-363 (2003)
Attila Gaspar et al.
Electrophoresis, 34(8), 1249-1252 (2013-02-13)
This paper demonstrates the use of surface plasmon resonance to study adsorption (either reversible or irreversible) of detergents on PDMS surfaces in real time. The surface plasmon resonance measurements can directly provide information about the adsorption/desorption processes of detergents on
Yujie Zhang et al.
Dalton transactions (Cambridge, England : 2003), 42(15), 5485-5490 (2013-02-22)
A simple, rapid colorimetric detection method for Pb(2+) in aqueous solution has been developed by using sodium thiosulfate (Na2S2O3) and hexadecyl trimethyl ammonium bromide (CTAB) modified gold nanoparticles (Au NPs). Na2S2O3 was added into the Au NP solution and thiosulfate
Wenjun Wang et al.
Food chemistry, 141(3), 2207-2212 (2013-07-23)
In this paper, the interaction of safranine T (ST) and calix[4]arene (4,10,16,22-tetramethoxylresorcinarene carboxylic acid derivatives (TRCA)) was investigated with fluorescence spectroscopy. The results was shown that the fluorescence intensity of TRCA could be quenched by ST, and the fluorescence quenching
Kirsten Exall et al.
The Science of the total environment, 461-462, 371-376 (2013-06-08)
To better understand the environmental mobility of sulfonamide antibiotics and develop improved processes for their removal during wastewater treatment, stirred cell ultrafiltration (UF) experiments were conducted using both synthetic and real wastewater effluent. The interactions between selected sulfonamides (sulfaguanidine, sulfathiazole
Hailong Peng et al.
International journal of pharmaceutics, 446(1-2), 153-159 (2013-02-12)
A novel pH-responsive nano-carrier MSNs-PAA, possessing mesoporous silica nanoparticles (MSNs) cores and poly(acrylic acid) (PAA) shell-layers, was developed for controlled release of salidroside. The vinyl double bonds modified MSNs were synthesized by using cetyltrimethylammonium bromide (CTAB) as templates, tetraethyl orthosilicate
Yongqian Xu et al.
Chemical communications (Cambridge, England), 49(70), 7732-7734 (2013-07-24)
A simple self-assembly platform based on squaraine-embedded CTAB micelles can readily discriminate between Cys and Hcy with different absorption and fluorescence signals. The recognition mechanism is attributed to the fact that analyte adducts trigger the CTAB micelles to undergo sphere-to-rod
Yoshihide Tatsuno et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 28(12), 1145-1151 (2012-12-13)
Two liquid membrane oscillators composed of aqueous solutions containing cetyltrimethylammonium chloride (CTACl) and alcohol, W1 and W1', a nitrobenzene solution containing picric acid, O, and pure water phase, W2, were connected through O and W2 as common phases. Two glass
Liming Zhang et al.
Journal of biomedical nanotechnology, 10(8), 1440-1449 (2014-07-16)
Although gold nanorods (GNRs) have been investigated extensively for optical hyperthermia therapies, the synthesis of rods is far from ideal. In this report, we optimized the synthesis of gold nanorods using hydroquinone as a reducing agent. Compared with the GNRs
Man Wang et al.
Ecotoxicology and environmental safety, 104, 254-262 (2014-04-15)
Activated carbon was prepared from Enteromorpha prolifera (EP) by H3PO4 activation in the presence of doped cetyl trimethyl ammonium bromide (CTAB), producing EPAC-CTAB. The thermal decomposition process of the activated carbon substrate was identified by thermo-gravimetric analysis. Scanning electron microscope
Liliana Rodrigues et al.
Antimicrobial agents and chemotherapy, 57(2), 751-757 (2012-11-21)
Efflux pumps are membrane proteins capable of actively transporting a broad range of substrates from the cytoplasm to the exterior of the cell. Increased efflux activity in response to drug treatment may be the first step in the development of
Sivaram Harendra et al.
Journal of environmental sciences (China), 25(3), 576-584 (2013-08-08)
Surfactants are soil washing agents and facilitators for subsurface remediation of hydrocarbon spills. It is important to understand the sorption and transport behavior of surfactants for enhanced soil remediation. The adsorption and desorption isotherms of cetyl trimethylammonium bromide (CTAB) and
Yoshinori Iiguni et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 29(1), 35-39 (2013-01-11)
By using the electromagnetophoretic migration technique with permanent magnets, the electromagnetophoretic migration velocimetry in a droplet-based system was demonstrated for organic droplets dispersed in an aqueous solution. Migration of 2-fluorotoluene droplets with a diameter of 8 - 16 μm dispersed
Xiangyu Wang et al.
The Science of the total environment, 449, 157-167 (2013-02-22)
To reveal how different dispersants influence the dispersity and physicochemical properties of palladium/iron nanoparticles (Pd/Fe NPs), we modified Pd/Fe NPs with poly(methylmethacrylate) (PMMA), polyacrylic acid (PAA) and cetyltrimethylammonium bromide (CTAB) respectively and obtained three hybrid NPs denoted M-Pd/Fe NPs, A-Pd/Fe
Justin Casas et al.
Biosensors & bioelectronics, 49, 525-530 (2013-07-03)
Surface modification of gold nanorods (GNRs) is often problematic due to tightly packed cetyltrimethylammoniumbromide (CTAB) bilayer. Herein, we performed a double phase transfer ligand exchange to achieve displacement of CTAB on nanorods. During the removal, 11-mercaptoundecanoic acid (MUDA) crosslinker is
Catalytic asymmetric alkylation in water in the presence of surfactants
Sinou D, et al.
advanced synthesis and catalysis, 345(3), 357-363 (2003)
Joana A Loureiro et al.
Journal of peptide science : an official publication of the European Peptide Society, 19(9), 581-587 (2013-08-08)
The amyloid β-peptide with a sequence of 42 amino acids is the major constituent of extracellular amyloid deposits in Alzheimer's disease plaques. The control of the peptide self-assembly is difficult to achieve because the process is fast and is affected
Ahmet Gürses et al.
TheScientificWorldJournal, 2012, 270452-270452 (2013-02-01)
The aim of this study was the preparation of polyethylene oxide (PEO)/clay nanocomposites using organoclay produced via micellar adsorption of cethyltrimethyl ammonium bromide (CTAB) and their characterisation by X-ray diffraction (XRD), and Fourier transform infrared (FT-IR) spectra, and the investigation
Tatiana A Trendeleva et al.
Mitochondrion, 13(5), 500-506 (2012-10-23)
The effects of the mitochondria-targeted lipophilic cation dodecyltriphenylphosphonium (C12TPP, the charge is delocalized and screened by bulky hydrophobic residues) and those of lipophilic cations decyltriethylammonium bromide and cetyltrimethylammonium bromide (C10TEA and C16TMA, the charges are localized and screened by less
Dong Yang et al.
Journal of nanoscience and nanotechnology, 13(8), 5485-5492 (2013-07-26)
Composite Fe3O4/Au nanoparticles are attracting considerable interest in developing visual and specific detection of biomolecular due to their unique physical and chemical properties. Here, two localize surface plasmon resonance (LSPR) probes based on Fe3O4/Au nanoparticles (nanoSPR biosensors) were fabricated by
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