Results 201 to 210 of about 105,531 (246)

Structure of DNA-CTAB-hexanol complexes

Physical Review E, 2006
We have probed structures of the complexes formed by DNA with the cationic surfactant cetyltrimethylammonium bromide in the presence of the cosurfactant hexanol, using small angle x-ray diffraction techniques. They are found to exhibit a hexagonal-->lamellar-->hexagonal transition with increasing hexanol content.
Krishnaswamy, Rema, Pabst, Georg, Rappolt, Michael, Raghunathan, VA, Sood, AK   +4 more
openaire   +2 more sources

Combing DNA on CTAB-coated surfaces

Biophysical Chemistry, 2004
A 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
Hu-Zhi, Zheng, Dai-Wen, Pang, Zhe-Xue, Lu, Zhi-Ling, Zhang, Zhi-Xiong, Xie   +4 more
openaire   +2 more sources

Effect of CTAB and procain hydrochloride on neutral red microstructure in CTAB micelle

Colloid Journal, 2008
The effects of cationic surfactant (CTAB) and procaine hydrochloride on the microstructures of neutral red (NR) are studied by UV-Vis spectroscopy, fluorescence spectroscopy and surface tension and conductivity measurements. The obtained results show that the acidic structure of NR can be gradually transformed to its neutral structure with an increase ...
T. Liu, J. Wu
openaire   +1 more source

Structure and stoichiometry of CTAB–DNA complexes

The Journal of Chemical Physics, 2020
We have studied the structure of cetyltrimethylammonium bromide–DNA complexes using small angle x-ray diffraction and elemental analysis. These complexes exhibit a two-dimensional hexagonal phase. The diffraction data have been analyzed using electron density models based on two different structures of these complexes proposed in the literature, which ...
S. Madhukar, A. V. Radhakrishnan, A. K. Majhi, V. A. Raghunathan   +3 more
openaire   +2 more sources

CTAB-Influenced Electrochemical Dissolution of Silver Dendrites

Langmuir, 2016
Dendrite formation on the electrodes of a rechargeable battery during the charge-discharge cycle limits its capacity and application due to short-circuits and potential ignition. However, understanding of the underlying dendrite growth and dissolution mechanisms is limited.
O'Regan, C., Zhu, X., Zhong, J., Anand, U., Lu, J., Su, Haibin, Mirsaidov, U.   +6 more
openaire   +3 more sources

FTIR investigation of CTAB–Al–montmorillonite complexes

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2007
In this study, CTAB-Al-montmorillonite complexes were synthesized by pre-modifying montmorillonite using different concentrations of surfactant (resulting in different surfactant loadings and basal spacings), then pillaring the organoclays with hydroxy-Al cations.
Weihong, Xue, Hongping, He, Jianxi, Zhu, Peng, Yuan   +3 more
openaire   +2 more sources

The source of toxicity in CTAB and CTAB-stabilized gold nanorods

2013
The 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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The interaction between morin and CTAB aggregates

Journal of Colloid and Interface Science, 2005
Electronic absorption spectra, fluorescence emission spectra, ATR-FTIR spectra, cyclic voltammetric measurements, and ab initio quantum calculation are used to study the properties of morin in CTAB micelles with different microstructures and microenvironments and to gain information about the binding of morin with CTAB micelles. Morin can be located in
Weiya, Liu, Rong, Guo
openaire   +2 more sources

Iodide in CTAB Prevents Gold Nanorod Formation

Langmuir, 2009
The gold nanocrystal seed-mediated approach using cetyltrimethylammonium bromide (CTAB) as a stabilizing surfactant is commonly used to make large quantities of monodisperse gold nanorods. This method, however, has been at times difficult to reproduce in different laboratories. We recently showed [Smith, D. K.; Korgel, B. A. Langmuir 2008, 24, 644-649]
Danielle K, Smith, Nathan R, Miller, Brian A, Korgel   +2 more
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CTAB enhancement of FRET in DNA structures

Journal of Biophotonics, 2015
The 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 ...
Taeseok, Oh, Tsukasa, Takahashi, Sejung, Kim, Michael J, Heller   +3 more
openaire   +2 more sources