Results 311 to 320 of about 102,644 (348)
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Combing DNA on CTAB-coated surfaces
Biophysical Chemistry, 2004A fluorescence microscope (FM) coupled with an intensified charge-coupled device (ICCD) camera was used to investigate the combing of DNA on cetyltrimethyl ammonium bromide (CTAB)-coated glass surfaces. DNA molecules can be combed uniform and straight on CTAB-coated surfaces. Different combing characteristics at different pH values were found. At lower
Zhi-Ling Zhang +4 more
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Conformation of gramicidin-A in CTAB micellar media
Journal of Photochemistry and Photobiology B: Biology, 2003Gramicidin A (gA) is a linear pentadecapeptide, which exhibits various conformations depending on the environment. The conformational behavior of gA in spherical and rod-shaped cationic micelles formed by cetyltrimethylammonium bromide (CTAB) surfactant has been studied using circular dichroism (CD) and fluorescence spectroscopy, and a probable ...
Shobini, J +2 more
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CTAB enhancement of FRET in DNA structures
Journal of Biophotonics, 2015The effect of cetyl‐trimethylammonium bromide (CTAB) on enhancing the fluorescence resonance energy transfer (FRET) between two dye‐conjugated DNA strands was studied using fluorescence emission spectroscopy and dynamic light scattering (DLS). For hybridized DNA where one strand is conjugated with a TAMRA donor and the other with a TexasRed acceptor ...
Tsukasa Takahashi +3 more
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The effect of CTAB on Na2SO4 nucleation in mixed Na2SO4/CTAB aerosols by FTIR-ATR technology
Chinese Chemical Letters, 2016Abstract FTIR-ATR technology is used to study the efflorescence kinetic of Na2SO4 and mixed Na2SO4/CTAB aerosols. As the RH decreased linearly, the ν3 SO42− band shifts from 1094 cm−1 to 1132 cm−1, suggesting the phase transition of Na2SO4 from solution to crystal phase (III).
Shu-Feng Pang +3 more
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Langmuir, 1999
The behavior of glycerol and glyceraldehyde as cosurfactants in the ternary CTAB/glycerol/water and CTAB/glyceraldehyde/water systems is studied. The phase diagrams only show the L and the hexagonal H1 phases. The L phase conductivity results at low surfactant concentration agree with no interaction between both cosurfactants and CTAB micelles.
Elvira Rodenas +2 more
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The behavior of glycerol and glyceraldehyde as cosurfactants in the ternary CTAB/glycerol/water and CTAB/glyceraldehyde/water systems is studied. The phase diagrams only show the L and the hexagonal H1 phases. The L phase conductivity results at low surfactant concentration agree with no interaction between both cosurfactants and CTAB micelles.
Elvira Rodenas +2 more
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The source of toxicity in CTAB and CTAB-stabilized gold nanorods
2013The use of nanoparticles for sensing, cell imaging, and therapy has seen an extraordinary increase, in recent years. But, one of the issues commonly encountered when using nanoparticles in bioapplications is their toxicity. Cetyltrimethylammonium bromide (CTAB) is a common surfactant used in nanoparticle synthesis. One of CTAB’s uses is to direct the
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CTAB Mediated Reshaping of Metallodielectric Nanoparticles
Nano Letters, 2003We report on the dramatic chemical reshaping of metallodielectric nanoparticles upon exposure to cetyltrimethylammonium bromide (CTAB) in aqueous solutions. Metal nanoshells possessing a silica core with a gold shell were observed to undergo a morphological change from their initial shell structure to that of large, elongated gold nanoparticles or ...
Carla Aguirre +3 more
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Optics & Laser Technology, 2018
Abstract ZnO nanoparticles were produced by pulsed laser ablation of a high purity (99.99%) zinc metal target in different concentration of CTAB solution. A Q-switched Nd:YAG laser operating at wavelengths of 1064 nm with pulse width of 7 ns and 10 Hz repetition rate was employed to irradiate the Zn target in CTAB.
Soheila Abdi, Davoud Dorranian
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Abstract ZnO nanoparticles were produced by pulsed laser ablation of a high purity (99.99%) zinc metal target in different concentration of CTAB solution. A Q-switched Nd:YAG laser operating at wavelengths of 1064 nm with pulse width of 7 ns and 10 Hz repetition rate was employed to irradiate the Zn target in CTAB.
Soheila Abdi, Davoud Dorranian
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Solid State Sciences, 2011
Abstract Mesoporous γ-aluminas are prepared via a facile one-pot hydrothermal method using aluminum sulfate as a precursor, urea as precipitating agents, sodium tartrate and CTAB (cetyltrimethylammonium bromide) as co-templates respectively. Characterizations of the intermediate aluminum oxyhydroxides by IR, XRD, element analysis and TG show that the
Teng Xue +5 more
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Abstract Mesoporous γ-aluminas are prepared via a facile one-pot hydrothermal method using aluminum sulfate as a precursor, urea as precipitating agents, sodium tartrate and CTAB (cetyltrimethylammonium bromide) as co-templates respectively. Characterizations of the intermediate aluminum oxyhydroxides by IR, XRD, element analysis and TG show that the
Teng Xue +5 more
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Fast local dynamics in CTAB micelles
AIP Conference Proceedings, 2012Molecular dynamics of cetyltrimethylammonium Bromide (CTAB) micelle has been studied in the temperature range 310-340 K using quasielastic neutron scattering technique. Data analysis clearly shows the presence of two distinct motions; i) whole micellar motion or global diffusion and ii) faster internal motion of the CTAB monomer.
R. Mukhopadhyay +3 more
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