Relevant bibliographies by topics / Dodecyltrimethylammonium bromide (DTAB)

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  2. Conference papers

Academic literature on the topic 'Dodecyltrimethylammonium bromide (DTAB)'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Dodecyltrimethylammonium bromide (DTAB)"

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Różycka-Roszak, Bożenna, and Hanna Pruchnik. "Influence of Dodecyltrimethylammonium Halides on Interaction of Phenyltin Compounds with Model Membranes." Zeitschrift für Naturforschung C 56, no. 7-8 (2001): 623–28. http://dx.doi.org/10.1515/znc-2001-7-823.

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The effects were studied of dodecyltrimethylammonium chloride (DTAC), dodecyltrimethylammonium bromide (DTAB) and dodecyltrimethylammonium iodide (DTAI) on thermo­tropic phase behaviour of phosphatidylcholine bilayers, as well as on 1H NMR and 31P NMR spectra, in the presence of diphenyltin dichloride (DPhT) and triphenyltin chloride (TPhT). The obtained results indicate that in the presence of the surfactant studied the interaction of phenyltin compounds with model membranes was changed and the changes depended on the kind of the counterion. The surfactants studied (especially DTAC) decrease
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2

Różycka-Roszak, Bożenna, and Hanna Pruchnik. "Effect of Counterions on the Influence of Dodecyltrimethylammonium Halides on Thermotropic Phase Behaviour of Phosphatidylcholine Bilayers." Zeitschrift für Naturforschung C 55, no. 3-4 (2000): 240–44. http://dx.doi.org/10.1515/znc-2000-3-416.

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Abstract Effects of dodecyltrimethylammonium chloride (DTAC), dodecyltrimethylammonium bromide (DTAB) and dodecyltrimethylammonium iodide (DTAI) on thermotropic phase behaviour of phosphatidylcholine bilayers as well as on 1H NMR spectra were studied. In order to enhance the effect of counterions on water structure two series of experiments were performed. In the first one the surfactants were added to the water phase and in the other one directly to lipid phase (a mixed film was formed). The effects of particular surfactants on the main phase-transition temperature were more pronounced when t
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3

Różycka-Roszak, Bożenna, and Hanna Pruchnik. "Influence of Dodecyltrimethylammonium Halides on Thermotropic Phase Behaviour of Phosphatidylcholine/Cholesterol Bilayers." Zeitschrift für Naturforschung C 55, no. 9-10 (2000): 753–57. http://dx.doi.org/10.1515/znc-2000-9-1013.

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Abstract Effects of dodecyltrimethylammonium chloride (DTAC), dodecyltrimethylammonium bromide (DTAB) and dodecyltrimethylammonium iodide (DTAI) on thermotropic phase behaviour of phosphatidylcholine bilayers containing cholesterol as well as on 1H NMR spectra were studied. Two series of experiments were performed. In the first one the surfactants were added to the water phase while in the other directly to the lipid phase (a mixed film from cholesterol, surfactant and phosphatidylcholine was formed). The effects of particular surfactants on the main phase transition temperature, Tm, were more
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4

Shahi, Neelam, and Ajaya Bhattarai. "Micellisation behavior on the dodecyltrimethylammonium bromide in the presence of Brij-35 in pure water by conductivity measurement." BIBECHANA 15 (December 19, 2017): 85–89. http://dx.doi.org/10.3126/bibechana.v15i0.18518.

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Conductivity measurement of dodecyltrimethylammonium bromide in the presence of Brij-35 in aqueous media at 289.15 K is performed. The result showed a sharp increase in conductivity with increase in the concentration of dodecyltrimethylammonium bromide in the presence of Brij-35. The graph of specific conductivity versus concentration is used in determining the critical micelle concentration (CMC). There is the decrease in CMC of dodecyltrimethylammonium bromide in the presence of Brij-35 in comparison with the CMC of dodecyltrimethyl ammonium bromide [DTAB]. Gibbs free energy of micellisation
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Róźycka-Roszak, Boźenna, Romuald Żyłka, and Janusz Sarapuk. "Hydration of Alkylammonium Salt Micelles - Influence of Bromide and Chloride Counterions." Zeitschrift für Naturforschung C 55, no. 5-6 (2000): 413–17. http://dx.doi.org/10.1515/znc-2000-5-617.

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The micellization process of dodecyltrimethylammonium chloride (DTAC) and bromide (DTAB) was studied. Nuclear magnetic resonance method was used. The 1H NM R and 13C NM R spectra were taken at higher and lower concentrations than the critical micelle concentrations (CMC) of the compounds studied. Chemical shifts were analysed. The studies performed were prompted by earlier calorimetric measurements which showed that there were significant qualitative and quantitative differences in the micellization process of the compounds studied. Namely, DTAB micelle dissociation was found to be an endother
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Różycka-Roszak, Bożenna, Romuald Żyłka, and Janusz Sarapuk. "Micellization Process -Temperature Influence on the Counterion Effect." Zeitschrift für Naturforschung C 56, no. 1-2 (2001): 154–57. http://dx.doi.org/10.1515/znc-2001-1-223.

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Abstract The micellization process of dodecyltrimethylammonium chloride (DTAC) and bromide (DTAB) was studied at 313 K. Nuclear magnetic resonance and calorimetric methods were used. The calorimetric titration curves permitted determination of the critical micelle concentration (CMC) and enthalpy of the micellization process (ΔHm) of the compounds studied. The results obtained were compared to those obtained at 298 K. It was found that calorimetric curves obtained at 313 K for both compounds were similar to each other in contrast to 298 K. Especially a great difference in the shape of curves w
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7

Shopova, Denitsa, Robert Dinnebier, and Martin Jansen. "Preparation and Crystal Structure Determination of Sulphur Dioxide Solvate Crystals with Cetyl- and Dodecyltrimethylammonium Bromide." Zeitschrift für Naturforschung B 63, no. 9 (2008): 1087–92. http://dx.doi.org/10.1515/znb-2008-0912.

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Cetyltrimethylammonium bromide (CTAB) and dodecyltrimethylammonium bromide (DTAB) form with sulphur dioxide crystalline solvates which have been characterised by Raman spectroscopy and X-ray powder diffraction (XRPD) at room temperature. In both crystal structures, the fully extended CTAB and DTAB cations are oriented along the a axes, forming infinite parallel stacks along the b axes. Neighbouring stacks form sheets with the bromide anions and the sulphur dioxide molecules acting as chelating agents. Consecutive sheets are flipped and shifted, thus building the three-dimensional crystal struc
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8

Harun-Al-Rashid, Md, Tania Tofaz, M. Islam, and T. Biswas. "Sound Velocities and Micellar Behaviour Studies of Dodecyltrimethylammonium Bromide in Aqueous Solutions at 295.15, 302.15 and 309.15 K." International Journal of Chemistry 7, no. 2 (2015): 213. http://dx.doi.org/10.5539/ijc.v7n2p213.

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Speed of sound, u, of dodecyltrimethylammonium bromide (DTAB) aqueous solutions has been determined at 295.15, 302.15 and 309.15 K. The speeds of sound, u, data have been used to estimate isentropic compressibility, Ks, apparent molal isentropic compressibility, φk(s), acoustic impedance, Z, molal sound of speed, Rm, and relative association, RA, of DTAB in aqueous solution. These parameters have been interpreted in terms of solute-solute and solute-solvent interactions and micellar behavior of DTAB.
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9

Saha, Debasish, Debes Ray, Sugam Kumar, Joachim Kohlbrecher, and Vinod K. Aswal. "Interaction of a bovine serum albumin (BSA) protein with mixed anionic–cationic surfactants and the resultant structure." Soft Matter 17, no. 29 (2021): 6972–84. http://dx.doi.org/10.1039/d1sm00264c.

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The interaction of a bovine serum albumin (BSA) protein with the mixture of anionic sodium dodecyl sulfate (SDS) and cationic dodecyltrimethylammonium bromide (DTAB) has been investigated by small-angle neutron scattering (SANS) and dynamic light scattering (DLS).
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10

Litluechai, Arpaporn, Arreerat Prompa, Pikaned Uppachai, Wirat Jarernboon, Nutthaya Butwong, and Siriboon Mukdasai. "Highly sensitive colorimetric detection of Cd(ii) based on silica sol modified with dithizone and cationic surfactant." RSC Advances 14, no. 44 (2024): 32101–8. http://dx.doi.org/10.1039/d4ra03983a.

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A colorimetric sensor for the determination of Cd2+ was fabricated by modifying silica sol with dodecyltrimethylammonium bromide (DTAB) and dithizone (DZ), changing the solution color from purple to orange prior to detection using ultraviolet-visible spectrophotometry and a customized Cd analyzer.
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Conference papers on the topic "Dodecyltrimethylammonium bromide (DTAB)"

1

Kurahashi, Kensuke, Osamu Tomioka, and Yoshihiro Meguro. "Phase Behavior and Reverse Micelle Formation in Supercritical CO2 With DTAB and F-Pentanol for Decontamination of Radioactive Wastes." In ASME 2010 13th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2010. http://dx.doi.org/10.1115/icem2010-40257.

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To develop a metal separation method using supercritical CO2 (scCO2) solvent for the decontamination process of radioactive wastes, the reverse micelle formation in scCO2 was investigated. Dodecyltrimethylammonium bromide (DTAB) as a surfactant to form the reverse micelles and 2,2,3,3,4,4,5,5-octafluoro-1-pentanol (F-pentanol) as a modifier to increase the solubility of DTAB into scCO2 were used. The reverse micelles could be formed by using 0.02 mol/dm3 DTAB and 0.45 mol/dm3 F-pentanol. A water concentration dissolved in scCO2 was increased with an increase of pressure, and 0.42 mol/dm3 water
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Hassan, Anas Mohammed, Mohammed Ayoub, Mysara Eissa, Emad W. Al-Shalabi, Abdullah Almansour, and Abdulrahman Alquraishi. "Foamability and Foam Stability Screening for Smart Water Assisted Foam Flooding: A New Hybrid EOR Method." In International Petroleum Technology Conference. IPTC, 2022. http://dx.doi.org/10.2523/iptc-22475-ms.

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Abstract The smart water-assisted foam flooding (SWAF) technique is a novel EOR method that is a synergic combination of smart water and foam-flooding methods. Smart water enables multi-level improvements, such as stabilizing foam-lamella and altering the wettability of the carbonate rock, which results in a desirable relative-permeability behavior. This paper experimentally investigated foam characterization related to enhanced oil recovery (EOR) using the smart water-assisted foam flooding (SWAF) technique including foamability and foam stability. This study aims to identify the foaming agen
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