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31 results for “ZnO nanoparticles”
Dataset for the article "Capping agent control over the physicochemical and antibacterial properties of ZnO nanoparticles".
<p>Dataset for the article "Capping agent control over the physicochemical and antibacterial properties of ZnO nanoparticles".</p> <p>David Rutherford1, Markéta Šlapal Bařinková1, Thaiskang Jamatia2, Pavol Šuly2, Martin Cvek2, Bohuslav Rezek1</p> <p><br>1 Faculty of Electrical Engineering, Czech Technical University in Prague, Technická 2, 16227 Prague, Czech Republic<br>2 Centre of Polymer systems, Tomas Bata University in Zlin, Trida T. Bati 5678, 760 01 Zlín, Czech Republic</p> <p><br>Dataset description:</p> <p>240909 UV-vis_capped_ZnO.xlsx UV-vis spectroscopy<br>220623 ZnO Zlin Zn ion.xlsx Zinc ion measurement<br>230511 dls_zeta_data.xlsx DLS & zeta potential measurement<br>230221 ZnO_Zlin_MIC_MASTER.xlsx Minimum inhibitory concentration</p>
Suspension of Zinc Oxide Nanoparticles (ZnO-NP) as an Intraoperative Wound Irrigation to Prevent Infection After Fracture Fixation
<p>This was underlying data as part of the article "Suspension of Zinc Oxide Nanoparticles (ZnO-NP) as an Intraoperative Wound Irrigation to Prevent Infection After Fracture Fixation"</p>
Interactive effects of ZnO nanoparticles and temperature on molecular and cellular stress responses of the blue mussel Mytilus edulis
<p>We investigate the molecular and cellular stress responses of tissues (gills and digestive glands) in the mussels <em>Mytilus edulis </em>exposed for 21 days to either ambient (10 °C in winter and 15 °C in summer) or elevated (by 5 °C) temperature combined with different concentrations (0, 10, 100 µg l<sup>-1</sup>) of ZnO nanoparticles or dissolved zinc. In this data set, we used a biomarker-based approach focusing on oxidative stress indicators ( lipid peroxidation and protein carbonyls) and transcription pattern of marker genes in the pathways related to cell survival and proliferation (caspase 3, Bcl-2, p53, p38 and JNK) and inflammation (COX, NF-κB, and TGF-β) of <em>M. edulis</em>. </p>
Green synthesis of ZnO nanoparticles using Cocos nucifera leaf extract: Characterization, antimicrobial, antioxidant, and photocatalytic activity
<p>Zinc oxide nanoparticles (ZnO NPs) have been successfully prepared using <em>Cocos nucifera</em> leaf extract and investigated with their antimicrobial, antioxidant, and photocatalytic activity. The structural, compositional, and morphological properties of the NPs were recorded and studied systematically to confirm the synthesis. The aqueous suspension of NPs showed a UV-Vis. absorption maxima of 370 nm indicating primarily its formation. The XRD analysis identified the NPs with hexagonal wurtzite structure with an average particle size of 16.6 nm. The FTIR analysis identified some biomolecules and functional groups in the leaf extract as responsible for the encapsulation and stabilization of ZnO NPs. The EDX analysis showed the desired elemental compositions in the material. A flower-shaped morphology of ZnO NPs was observed by SEM with a grain size of around 15 nm. The optical properties of the NPs were studied by UV-Vis spectroscopy and the bandgap was calculated as 3.37 eV. The Prepared ZnO NPs have demonstrated antimicrobial activity against <em>T. harzianum</em>, and <em>S. aureus</em> with a ZOI (zone of inhibition) of 14 and 10 mm, respectively. The photocatalytic behavior of ZnO NPs showed absorbance degradation at around 640 nm and discolored methylene blue dye after one hour with a degradation maximum of 84.29 %. Thus, the prepared ZnO NPs could be used potentially in antibiotic development, pharmaceutical industries, and as photocatalysts. </p>
Physico-chemical characterization of sterile ZnO nanoparticles by XPS / HAXPES / SEM
<p>Here a dataset of XPS, HAXPES and SEM measurements for the physico-chemical characterization of nanoparticles is presented. The measurements are part of the H2020 project “NanoSolveIT”.</p> <p>Sterile ZnO<sub> </sub>nanoparticles were synthesized under aseptic conditions at Mintek, South Africa (EMR-Identifier in the project: ERM00000584).</p> <p>Prior to the measurements, the samples were prepared from the solution as drop cast on Si wafers. First SEM measurements were performed, followed by XPS and HAXPES measurements on the same samples. Here at first survey spectra were recorded followed by high resolution spectra. For XPS / HAXPES several Si-wafers were mounted together on one platen. The platen was left in the intro chamber of the instrument for several hours before the measurement started.</p> <p>Equipment:</p> <p>SEM images were acquired with a <em>Supra 40 </em>(Zeiss) SEM.</p> <p>For X-ray spectroscopy experiments, a combined XPS / HAXPES spectrometer (<em>Quantes </em>from ULVAC-PHI) was used, where XPS is measured at 1486.6 eV (monochromatic Al Kα source) and HAXPES at 5414.9 eV (monochromatic Cr Kα source). Here it is possible to perform the measurements at the exact same position.</p> <p>Data:</p> <p>For SEM, the data are given in .tif format. For XPS / HAXPES the raw data are given as .spe (PHI format) and .npl (VAMAS format) files. The measurement conditions are given in the data files.</p> <p>Naming of data:</p> <p>SEM: <em>sample_treatment (n)</em>, with n a consecutive number.</p> <p>XPS / HAXPES: For the .spe and for the corresponding .npl files <em>Pn.m.o.sample_treatment, </em>with Pn: platen-number, m: spectrum number (order of the measurements); o: point-number, of the position on the sample, sample_treatment with "p" for pristine.</p> <p> </p> <p>The authors thank Thorid Lange, who performed the SEM measurements.</p>
Green Synthesis of Zinc Oxide (ZnO) Nanoparticles Using Aqueous Extract of Shilajit: Their Characterization and Anticancer Activity
<p>UV analysis of aqueous extract of shilajit and zinc oxide nanoparticles (ZnO NPs) of shilajit extract showed the absorbance peaks at 422.40 nm and 357.90 nm. The abosrbance peaks confirms the presence of ZnO NPs in the reaction mixture.</p> <p>The FTIR spectrum of shilajit extract and ZnO NPs of shilajith extract showed the strong broad absorbance at 3428 cm−1 are due to the stretching vibration of hydroxyl (OH) functional groups. The absorption band at 1633 cm-1 corresponded the stretching vibration of N-H groups. The peak at 1414 cm<sup>-1</sup> observed in the spectrum indicate the presence of mono-substituted alkynes. The peak at 1163 cm<sup>-1</sup> showed the presence of C-O bonds.</p> <p>The XRD pattern of ZnO NPs of shilajith extract, characterized by their high intensity, were observed at specific 2θ peak values, namely 31.69°, 34.33°, 36.17°, 47.45°, 56.52°, 62.77°, 67.87° and 68.99°, and can be attributed to the lattice planes (100), (002), (101), (102), (110), (103), (112), and (201), respectively.</p> <p>The particle size of ZnO NPs of shilajit extract was measured to be 348 nm and the polydispersity index was found to be 0.322.</p>
Green synthesis of ZnO nanoparticles using Cocos nucifera leaf extract: Characterization, antimicrobial, antioxidant, and photocatalytic activity
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Data from: Facile fabrication of fluoro-polymer self-assembled ZnO nanoparticles mediated, durable and robust omniphobic surfaces on polyester fabrics
<p>Omniphobic surfaces have been widely used in many applications, especially due to their self-cleaning property. Omniphobicity of a surface is directly interpreted by measuring the contact angle that it makes with a liquid of interest. In this study, polyester fabric was made omniphobic with a measured water contact angle (WCA) of 152° by reducing the surface free energy of the fabric surface via the polymerization of 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl methacrylate(TDM) on a ZnO seed layer. The fabrics with and without the seed layer were characterized using various analytical techniques. The WCA of the fabric with the seed layer was 153° compared to 142° of the fabric without the seed layer. The treated fabric made a contact angle of 132° with SAE 40 motor oil indicating its oleophobicity while non-treated fabric made no contact angle. In addition to that, the treated fabric is omniphobic against milk tea, coffee, coconut oil, and ethanol. The morphological analysis using scanning electron microscopy (SEM) of the treated and non-treated fabrics revealed that the particle size of the seed layer applied fabric was ranging from 100-300 nm and upon the TDM application it became less than 100 nm. Elemental analysis by EDS showed the presence of fluorine and FT-IR analysis confirmed the polymerization of TDM. The polymerization of fluoropolymer was further confirmed by TGA and DSC analyses. The contact angle of the surface-modified fabric remained unchanged even after 1.5 h washing and 50 cycles of abrasion. The modified fabric is robust and no change was observed in the colour of the fabric during the process. More importantly the preparation method of the fabric is simple, low cost and quick.</p>
Physico-chemical characterization of sterilized ZnO nanoparticles by XPS / HAXPES / SEM
<p>Here a dataset of XPS, HAXPES and SEM measurements for the physico-chemical characterization of sterilized nanoparticles is presented. The measurements are part of the H2020 project “NanoSolveIT”.</p> <p>ZnO nanoparticles were provided by Promethean Particles and treated differently by project partners from the University of Birmingham (EMR-Identifiers in the project: ERM00000416, ERM00000458, ERM00000437).</p> <p>The particles were treated by different sterilization methods (autoclave or microwave) and BSA was or was not added as stabilizer. This finally leads to five different samples: pristine, autoclave, microwave, autoclave with BSA, microwave with BSA.</p> <p>Prior to the measurements, the samples were prepared from the solution as drop cast on Si wafers. First SEM and EDS measurements were performed, followed by XPS and HAXPES measurements on the same samples. Here at first survey spectra were recorded followed by high resolution spectra. For XPS / HAXPES several Si-wafers were mounted together on one platen. The platen was left in the intro chamber of the instrument for several hours before the measurement started.</p> <p>Equipment:</p> <p>SEM images were acquired with a <em>Supra 40 </em>(Zeiss) SEM equipped with a <em>Quantax 400 </em>(Bruker) SDD EDS spectrometer.</p> <p>For X-ray spectroscopy experiments, a combined XPS / HAXPES spectrometer (<em>Quantes </em>from ULVAC-PHI) was used, where XPS is measured at 1486.6 eV (monochromatic Al Kα source) and HAXPES at 5414.9 eV (monochromatic Cr Kα source). Here it is possible to perform the measurements at the exact same position.</p> <p>Data:</p> <p>For SEM, the data are given in .tif format. For XPS / HAXPES the raw data are given as .spe (PHI format) and .npl (VAMAS format) files. The measurement conditions are given in the data files.</p> <p>Naming of data:</p> <p>SEM: <em>sample_treatment (n)</em>, with n a consecutive number.</p> <p>XPS / HAXPES: For the .spe files <em>Pn.m.o.sample_treatment</em> and for the corresponding .npl files: <em>m.npl</em> with Pn: platen-number, m: spectrum number (order of the measurements); o: point-number, of the position on the sample, sample_treatment with "m" for microwave and "a" for autoclave.</p> <p>The authors thank Sigrid Benemann, who performed the SEM measurements.</p>
Chlorhexidine Scrub, ZnO Nanoparticles Socks and the Combination for Prevention of Pitted Keratolysis
ClinicalTrials.gov study NCT04337749. IPD Sharing: NO. Countries: 1. Publications: 6.
Chlorhexidine Scrub, ZnO Nanoparticles Socks and the Combination for Treatment of Pitted Keratolysis
ClinicalTrials.gov study NCT04332796. IPD Sharing: UNDECIDED. Countries: 1. Publications: 6.
ZnO Nanoparticles Coated Orthodontic Molar Tube
ClinicalTrials.gov study NCT06089720. IPD Sharing: NO. Countries: 1. Publications: 7.
Data from: Facile fabrication of fluoro-polymer self-assembled ZnO nanoparticles mediated, durable and robust omniphobic surfaces on polyester fabrics
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Data from: The thermoelectric properties of Au nanoparticle-incorporated Al-doped mesoporous ZnO thin films
Mesoporous Al-doped ZnO thin films incorporated with gold nanoparticles (Au NPs) were synthesized using a sol-gel and evaporation-induced self-assembly process. In this work, the complementary effects of Au NP incorporation and Al doping on the mesoporous ZnO thin films' thermoelectric properties were analyzed. The incorporated Au NPs induced an increase in electrical conductivity but a detriment in the pore arrangement of the mesoporous ZnO thin film, which was accompanied by a decrease in porosity. However, the addition of the Al dopant minimized the pore structural collapse because of the inhibition of the grain growth in the ZnO skeletal structure, resulting in an enhancement of the pore arrangement and porosity. When the Au NPs and Al dopant were added at the same time, the degradation in the pore structure was minimized and the electrical conductivity was effectively increased but the absolute value of the Seebeck coefficient was decreased. However, as a result, the thermoelectric power factor was increased by 2.4 times compared to the pristine mesoporous ZnO thin film. It was found that co-introducing the Au NPs and Al doping to the mesoporous ZnO structure was effective in preserving the pore structure and increasing the electric conductivity, thereby enhancing the thermoelectric property of the mesoporous ZnO thin film.
Data from: The thermoelectric properties of Au nanoparticle-incorporated Al-doped mesoporous ZnO thin films
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Combined effects of ZnO and TiO2 nanoparticles on functional gene expression of Nitrosomonas europaea
GEO Series GSE70121. Nitrosomonas europaea ATCC 19718; Nitrosomonas europaea. 12 samples. Type: Expression profiling by array.
Continuous ZnO nanoparticle exposure induces melanoma-like skin lesions in epidermal barrier dysfunction model mice through anti-apoptotic effects mediated by the oxidative stress–activated NF-κB path
GEO Series GSE183662. Mus musculus. 12 samples. Type: Expression profiling by high throughput sequencing.
Functional gene expressions of continuously cultured Nitrosomonas europae after ZnO nanoparticles exposure and recovery incubation
GEO Series GSE83683. Nitrosomonas europaea; Nitrosomonas europaea ATCC 19718. 9 samples. Type: Expression profiling by array.
The Impact of Biosynthesized ZnO Nanoparticles from Olea europaea (Common Olive) on Pseudomonas Aeruginosa Growth and Biofilm Formation
GEO Series GSE225492. Pseudomonas aeruginosa. 3 samples. Type: Expression profiling by RT-PCR.
Comparisons of toxicogenomic responses in zebrafish (Danio rerio) exposed to ZnO nanoparticles and ZnSO4: The impact of sublethal concentration (LC25) on global gene expression profiles
GEO Series GSE77148. Danio rerio. 8 samples. Type: Expression profiling by array.
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