Investigation into the antibacterial behaviour of suspensions of ZnO nanoparticles (ZnO nanofluids)

Zhang, Lingling; Jiang, Yunhong; Ding, Yulong; Povey, M. J. W.; York, David

doi:10.1007/s11051-006-9150-1

Cited by 1,325 publications

(799 citation statements)

References 23 publications

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“…The latter is in agreement with the trend observed in Figure 5f as the concentration of the hydrogen related O-H bonds decreases with the increasing plasma time. It is reported that both hydrogen and hydroxyl in ZnO behave as shallow donors and can lead to higher carrier concentration [22,23]. The reduction of the O-H bond concentration also leads to the decrease of the carrier concentrations presented in Figure 6.…”

Section: Zno Thin Filmsmentioning

confidence: 88%

Forming-free resistive switching of tunable ZnO films grown by atomic layer deposition

Huang

Kiang

Morgan

et al. 2016

Microelectronic Engineering

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Undoped ZnO thin films with tunable electrical properties have been achieved by adjusting the O2 plasma time in the plasma enhanced atomic layer deposition process. The structural, compositional and electrical properties of the deposited ZnO films were investigated by various characterization techniques. By tuning the plasma exposure from 2 to 8 s, both resistivities and carrier concentrations of the resultant ZnO films can be modulated by up to 3 orders of magnitude. Forming-free TiN/ZnO/TiN resistive memory devices have been achieved by choosing the ZnO film with the plasma exposure time of 6 s. This deposition method offers a great potential for producing other un-doped metal oxides with tunable properties as well as complex multilayer structures in a single deposition.

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Section: Zno Thin Filmsmentioning

confidence: 88%

Forming-free resistive switching of tunable ZnO films grown by atomic layer deposition

Huang

Kiang

Morgan

et al. 2016

Microelectronic Engineering

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“…Since there was no change in the activity of CAT in the presence of MSNs in B. subtilis (Fig. 4c), the antibacterial activity can be linked with accumulated H 2 O 2 -the dominating species in antibacterial action against various bacteria (Zhang et al 2007;Stoimenov et al 2002).…”

Section: Msns Synthesis and Physico-chemical Characterizationmentioning

confidence: 93%

Innovative biofilm inhibition and anti-microbial behavior of molybdenum sulfide nanostructures generated by microwave-assisted solvothermal route

et al. 2014

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The incessant use of antibiotics against infectious diseases has translated into a vicious circle of developing new antibiotic drug and its resistant strains in short period of time due to inherent nature of microorganisms to alter their genes. Many researchers have been trying to formulate inorganic nanoparticles-based antiseptics that may be linked to broad-spectrum activity and far lower propensity to induce microbial resistance than antibiotics. The way-out approaches in this direction are nanomaterials based (1) bactericidal and (2) bacteriostatic activities. We, herein, present hitherto unreported observations on microbial abatement using non-cytotoxic molybdenum disulfide nanostructures (MSNs) which are synthesized using microwave assisted solvothermal route. Inhibition of biofilm formation using MSNs is a unique feature of our study. Furthermore, this study evinces antimicrobial mechanism of MSNs by reactive oxygen species (ROS) dependent generation of superoxide anion radical via disruption of cellular functions.

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“…Studies on antibacterial activity among the various metal oxides nanoparticles, zinc oxide nanoparticles, have been found to be highly toxic. Many studies have shown that selective toxic nature of ZnONPs toward bacteria shows the minimal effect on human cells, which is suggested their potential uses in agricultural, food industries, diagnostics, surgical devices, and nanomedicine-based antimicrobial agents [21][22][23][24]. Among the several metal oxide nanoparticles, ZnONPs are emerged as booming nanoparticle due to their attractive characteristics and ideal properties in various biomedical applications.…”

Section: Introductionmentioning

confidence: 99%

Antibiofilm activity of biogenic copper and zinc oxide nanoparticles-antimicrobials collegiate against multiple drug resistant bacteria: a nanoscale approach

et al. 2016

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The synthesis of biogenic nanoparticles from non-chemical resources has increased the drive toward understanding infection biology. Accordingly, we aimed to address the symbiotic antibiofilm effect of biogenic copper and zinc oxide nanoparticles with antimicrobials against multidrug resistant (MDR) pathogens. The minimum inhibitory concentration (MIC) of copper nanoparticles (CuNPs) and zinc oxide nanoparticles (ZnONPs) at the range from 2 to 128 lg/ml was calculated against Grampositive and Gram-negative pathogenic bacteria using a broth dilution method. Both nanoparticles have prime antibacterial activity compared with standard antibiotics (excluding against P.aeruginosa MTCC 741). A qualitative assessment of biofilm formation and collegial effect was performed using a modified test tube and the microtiter plate-based method by measuring the optical density and time kill of nanoparticles. The results demonstrated efficient antibiofilm activity of CuNPs in its lowest concentration than ZnONPs and antibiotics itself. In addition, significant enhancing antibiofilm effect was also shown by CuNPs in the presence of third generation antibiotics against Gram-negative and Gram-positive bacteria. A scanning electron microscopy (SEM) analysis was used to investigate the effect of the nanoparticles on morphological changes of Staphylococcus aureus. Current data highlights, biogenic CuNPs and ZnONPs could be used as an adjuvant for antibiotics in the treatment of bacterial infections.

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Investigation into the antibacterial behaviour of suspensions of ZnO nanoparticles (ZnO nanofluids)

Cited by 1,325 publications

References 23 publications

Forming-free resistive switching of tunable ZnO films grown by atomic layer deposition

Forming-free resistive switching of tunable ZnO films grown by atomic layer deposition

Innovative biofilm inhibition and anti-microbial behavior of molybdenum sulfide nanostructures generated by microwave-assisted solvothermal route

Antibiofilm activity of biogenic copper and zinc oxide nanoparticles-antimicrobials collegiate against multiple drug resistant bacteria: a nanoscale approach

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