Preparation and characterization of core–shell structure of SiO2@Cu antibacterial agent

Zhang, Nianchun; Gao, Yanhong; Zhang, Hui; Feng, Xuan; Cai, Huaihong; Liu, Yingliang

doi:10.1016/j.colsurfb.2010.07.054

Cited by 42 publications

(18 citation statements)

References 27 publications

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“…On the other hand, nanoparticles of copper and core shell SiO 2 /Cu have been less developed for textile finishing [33-36]. The current aimed to fabricate an antibacterial and superhydrophobic surface on the cotton fabric, by introducing Cu nanoparticles into the silica sols.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of superhydrophobic and antibacterial surface on cotton fabric by doped silica- based sols with nanoparticles of copper

2011

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The study discussed the synthesis of silica sol using the sol-gel method, doped with two different amounts of Cu nanoparticles. Cotton fabric samples were impregnated by the prepared sols and then dried and cured. To block hydroxyl groups, some samples were also treated with hexadecyltrimethoxysilane. The average particle size of colloidal silica nanoparticles were measured by the particle size analyzer. The morphology, roughness, and hydrophobic properties of the surface fabricated on cotton samples were analyzed and compared via the scanning electron microscopy, the transmission electron microscopy, the scanning probe microscopy, with static water contact angle (SWC), and water shedding angle measurements. Furthermore, the antibacterial efficiency of samples was quantitatively evaluated using AATCC 100 method. The addition of 0.5% (wt/wt) Cu into silica sol caused the silica nanoparticles to agglomerate in more grape-like clusters on cotton fabrics. Such fabricated surface revealed the highest value of SWC (155° for a 10-μl droplet) due to air trapping capability of its inclined structure. However, the presence of higher amounts of Cu nanoparticles (2% wt/wt) in silica sol resulted in the most slippery smooth surface on cotton fabrics. All fabricated surfaces containing Cu nanoparticles showed the perfect antibacterial activity against both of gram-negative and gram-positive bacteria.

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Section: Introductionmentioning

confidence: 99%

Fabrication of superhydrophobic and antibacterial surface on cotton fabric by doped silica- based sols with nanoparticles of copper

2011

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“…It has been reported that zero-valent copper, copper oxide, ionic copper and copper-containing molecular complexes all show some degree of antibacterial property. [12,[28][29][30][31] Many research groups have described the bacterial mechanisms of copper and its related aspects. Herein, we used a disk diffusion assay [32] and a growth-inhibition assay in liquid medium to evaluate the antibacterial capacity of our materials.…”

mentioning

confidence: 99%

Miniaturization of Metal–Biomolecule Frameworks Based on Stereoselective Self‐Assembly and Potential Application in Water Treatment and as Antibacterial Agents

Liu

et al. 2012

Chemistry A European J

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Miniaturization of metal-biomolecule frameworks (MBioFs) to the nanometer scale represents a novel strategy for fabricating materials with tunable physical and chemical properties. Herein, we demonstrate a simple, low-cost, and completely organic solvent-free strategy for constructing a dl-glutamic acid-copper ion-based three-dimensional nanofibrous network structure. The building blocks used are available in large quantities and do not require any laborious synthesis or modification. Importantly, we demonstrate with an intriguing example, that the self-assembly ability of supramolecular nanofibers could be finely tuned with the ligands' chirality. This offers opportunities for obtaining one-dimensional hierarchical nanostructures and expands the investigation scope of stereoselective self-assembly. Furthermore, the material displays good ability in removing anionic dyes from water and inhibits the growth of both Gram positive and Gram negative bacteria, possibly through the contact-killing mechanism; this indicates potential applications in environmental issues and antimicrobial nanotherapeutics.

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“…The newest generation of copper nanoparticles is the core-shell, which has potential applications in several areas [7]. The core-shell copper-containing composite has many advantages as antibacterial agent, such as high antibacterial activity, low toxicity, chemical stability and long lasting action period [8]. Authors [8] reported that Cu@SiO 2 /,bacterial cellulose composite, is a good antibacterial material.…”

Section: Introductionmentioning

confidence: 99%

Novel of core-shell AlOOH/Cu nanostructures: Synthesis, characterization, antimicrobial activity and in vitro toxicity in Neuro-2a cells

Бакина

Фоменко

Коровин

et al. 2016

AIP Conference Proceedings

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Core-shell micro/nanostructures were fabricated by the reaction of Al/Cu bimetallic nanoparticles with water. Al/Cu nanoparticles have been obtained using the method of simultaneous electrical explosion of a pair of the corresponding metal wires in an argon atmosphere. The nanoparticles are chemically active and interact with water at 60°C to form core-shell micro/nanostructures. The obtained products were characterized by means of X-ray diffraction, scanning electron microscopy, transmission electron microscopy and dynamic light scattering and the nitrogen adsorption method. The antibacterial activity of the synthesized structures was investigated against E. coli and St. aureus. The toxic effect of these nanostructures against the Neuro-2a neuroblastoma cell line was investigated. AlOOH/Cu nanostructures are shown to inhibit cell proliferation. The AlOOH/Cu nanostructures are good candidates for medical applications

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Preparation and characterization of core–shell structure of SiO2@Cu antibacterial agent

Cited by 42 publications

References 27 publications

Fabrication of superhydrophobic and antibacterial surface on cotton fabric by doped silica- based sols with nanoparticles of copper

Fabrication of superhydrophobic and antibacterial surface on cotton fabric by doped silica- based sols with nanoparticles of copper

Miniaturization of Metal–Biomolecule Frameworks Based on Stereoselective Self‐Assembly and Potential Application in Water Treatment and as Antibacterial Agents

Novel of core-shell AlOOH/Cu nanostructures: Synthesis, characterization, antimicrobial activity and in vitro toxicity in Neuro-2a cells

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