The Experts below are selected from a list of 3366 Experts worldwide ranked by ideXlab platform
Jingchang Zhang - One of the best experts on this subject based on the ideXlab platform.
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a novel cetyltrimethyl ammonium Silver Bromide complex and Silver Bromide nanoparticles obtained by the surfactant counterion
Journal of Colloid and Interface Science, 2007Co-Authors: Shuxia Lu, Jingchang ZhangAbstract:Abstract A novel cetyltrimethyl ammonium Silver Bromide (CTASB) complex has been prepared simply through the reaction of Silver nitrate with cetyltrimethyl ammonium Bromide (CTAB) in aqueous solution at room temperature by controlling the concentration of CTAB and the molar ratio of CTAB to Silver nitrate in the reaction solution, in which halogen in CTAB is used as surfactant counterion. The structure and thermal behavior of cetyltrimethyl ammonium Silver Bromide have been investigated by using X-ray diffraction (XRD), infrared spectroscopy (IR), X-ray photoelectron spectroscopy (XPS), UV/vis spectroscopy, thermal analysis (TG–DTA), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). The results show that the complex possesses a metastable layered structure. Upon heating the CTASB aqueous dispersion to above 80 °C, the structure change of the complex took place and CTAB-capped nanosized Silver Bromide particles further formed.
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a novel cetyltrimethyl ammonium Silver Bromide complex and Silver Bromide nanoparticles obtained by the surfactant counterion
Journal of Colloid and Interface Science, 2007Co-Authors: Xianhao Liu, Jingchang Zhang, Xiaohong Luo, Weiliang CaoAbstract:A novel cetyltrimethyl ammonium Silver Bromide (CTASB) complex has been prepared simply through the reaction of Silver nitrate with cetyltrimethyl ammonium Bromide (CTAB) in aqueous solution at room temperature by controlling the concentration of CTAB and the molar ratio of CTAB to Silver nitrate in the reaction solution, in which halogen in CTAB is used as surfactant counterion. The structure and thermal behavior of cetyltrimethyl ammonium Silver Bromide have been investigated by using X-ray diffraction (XRD), infrared spectroscopy (IR), X-ray photoelectron spectroscopy (XPS), UV/vis spectroscopy, thermal analysis (TG-DTA), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). The results show that the complex possesses a metastable layered structure. Upon heating the CTASB aqueous dispersion to above 80 degrees C, the structure change of the complex took place and CTAB-capped nanosized Silver Bromide particles further formed.
Weiliang Cao - One of the best experts on this subject based on the ideXlab platform.
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a novel cetyltrimethyl ammonium Silver Bromide complex and Silver Bromide nanoparticles obtained by the surfactant counterion
Journal of Colloid and Interface Science, 2007Co-Authors: Xianhao Liu, Jingchang Zhang, Xiaohong Luo, Weiliang CaoAbstract:A novel cetyltrimethyl ammonium Silver Bromide (CTASB) complex has been prepared simply through the reaction of Silver nitrate with cetyltrimethyl ammonium Bromide (CTAB) in aqueous solution at room temperature by controlling the concentration of CTAB and the molar ratio of CTAB to Silver nitrate in the reaction solution, in which halogen in CTAB is used as surfactant counterion. The structure and thermal behavior of cetyltrimethyl ammonium Silver Bromide have been investigated by using X-ray diffraction (XRD), infrared spectroscopy (IR), X-ray photoelectron spectroscopy (XPS), UV/vis spectroscopy, thermal analysis (TG-DTA), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). The results show that the complex possesses a metastable layered structure. Upon heating the CTASB aqueous dispersion to above 80 degrees C, the structure change of the complex took place and CTAB-capped nanosized Silver Bromide particles further formed.
Shuxia Lu - One of the best experts on this subject based on the ideXlab platform.
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a novel cetyltrimethyl ammonium Silver Bromide complex and Silver Bromide nanoparticles obtained by the surfactant counterion
Journal of Colloid and Interface Science, 2007Co-Authors: Shuxia Lu, Jingchang ZhangAbstract:Abstract A novel cetyltrimethyl ammonium Silver Bromide (CTASB) complex has been prepared simply through the reaction of Silver nitrate with cetyltrimethyl ammonium Bromide (CTAB) in aqueous solution at room temperature by controlling the concentration of CTAB and the molar ratio of CTAB to Silver nitrate in the reaction solution, in which halogen in CTAB is used as surfactant counterion. The structure and thermal behavior of cetyltrimethyl ammonium Silver Bromide have been investigated by using X-ray diffraction (XRD), infrared spectroscopy (IR), X-ray photoelectron spectroscopy (XPS), UV/vis spectroscopy, thermal analysis (TG–DTA), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). The results show that the complex possesses a metastable layered structure. Upon heating the CTASB aqueous dispersion to above 80 °C, the structure change of the complex took place and CTAB-capped nanosized Silver Bromide particles further formed.
Xianhao Liu - One of the best experts on this subject based on the ideXlab platform.
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a novel cetyltrimethyl ammonium Silver Bromide complex and Silver Bromide nanoparticles obtained by the surfactant counterion
Journal of Colloid and Interface Science, 2007Co-Authors: Xianhao Liu, Jingchang Zhang, Xiaohong Luo, Weiliang CaoAbstract:A novel cetyltrimethyl ammonium Silver Bromide (CTASB) complex has been prepared simply through the reaction of Silver nitrate with cetyltrimethyl ammonium Bromide (CTAB) in aqueous solution at room temperature by controlling the concentration of CTAB and the molar ratio of CTAB to Silver nitrate in the reaction solution, in which halogen in CTAB is used as surfactant counterion. The structure and thermal behavior of cetyltrimethyl ammonium Silver Bromide have been investigated by using X-ray diffraction (XRD), infrared spectroscopy (IR), X-ray photoelectron spectroscopy (XPS), UV/vis spectroscopy, thermal analysis (TG-DTA), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). The results show that the complex possesses a metastable layered structure. Upon heating the CTASB aqueous dispersion to above 80 degrees C, the structure change of the complex took place and CTAB-capped nanosized Silver Bromide particles further formed.
Blake R. Peterson - One of the best experts on this subject based on the ideXlab platform.
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multifunctional silane polymers for persistent surface derivatization and their antimicrobial properties
Langmuir, 2008Co-Authors: Varun Sambhy, Blake R. PetersonAbstract:We demonstrate a versatile methodology combining both covalent surface anchoring and polymer cross-linking that is capable of forming long-lasting coatings on reactive and nonreactive surfaces. Polymers containing reactive methoxysilane groups form strong Si−O−Si links to oxide surfaces, thereby anchoring the polymer chains at multiple points. The interchain cross-linking of the methoxysilane groups provides additional durability to the coating and makes the coatings highly resistant to solvents. By tailoring the chemical structure of the polymer, we were able to control the surface energy (wetting) of a variety of surfaces over a wide range of water contact angles of 30−140°. In addition, we synthesized covalently linked layer-by-layer polymeric assemblies from these novel methoxysilane polymers. Finally, antibacterial agents, such as Silver Bromide nanoparticles and triiodide ions, were introduced into these functional polymers to generate long-lasting and renewable antiseptic coatings on glass, metals,...
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Silver Bromide nanoparticle polymer composites dual action tunable antimicrobial materials
Journal of the American Chemical Society, 2006Co-Authors: Varun Sambhy, Megan M Macbride, Blake R. PetersonAbstract:We present a simple method of fabricating highly potent dual action antibacterial composites consisting of a cationic polymer matrix and embedded Silver Bromide nanoparticles. A simple and novel technique of on-site precipitation of AgBr was used to synthesize the polymer/nanoparticle composites. The synthesized composites have potent antibacterial activity toward both gram-positive and gram-negative bacteria. The materials form good coatings on surfaces and kill both airborne and waterborne bacteria. Surfaces coated with these composites resist biofilm formation. These composites are different from other Silver-containing antibacterial materials both in the ease of synthesis and in the use of a Silver salt nanoparticle instead of elemental Silver or complex Silver compounds. We also demonstrate the ability to tune the release of biocidal Ag+ ions from these composites by controlling the size of the embedded AgBr nanoparticles. These composites are potentially useful as antimicrobial coatings in a wide va...