Dispersion stability of zinc oxide nanoparticles in an electroless bath with various surfactants

Krishnakumar, V.; Elansezhian, R.

doi:10.1016/j.matpr.2021.05.467

Cited by 23 publications

(7 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Zeta potential can be used to determine the stability of nanoparticles in colloidal suspension by determining the magnitude of electrostatic interaction between colloidal particles. Nanoparticle suspensions with high stability should have a zeta potential value≤−15 mV or≥+15 mV [36] . The reported zeta potential value of ZnO‐NPs was −15.8 mV, which was less than −15 mV.…”

Section: Resultsmentioning

confidence: 97%

“…Nanoparticle suspensions with high stability should have a zeta potential value � À 15 mV or � + 15 mV. [36] The reported zeta potential value of ZnO-NPs was À 15.8 mV, which was less than À 15 mV. The negative zeta potentials reflected the negatively charged ZnO-NPs surface as a result of the adsorption of OH-group from water molecules to their surface.…”

Section: Particle Size and Zeta Potentialmentioning

confidence: 99%

See 1 more Smart Citation

Fabrication, Characterization and In Vitro Cell Cytotoxicity of ZnO Nanoparticles on MDA‐MB 231 Breast Cancer Cell Line

Kumar Janakiraman,

Yin Wong,

Cheng

et al. 2023

ChemistrySelect

View full text Add to dashboard Cite

The intention of this study was to prepare zinc oxide nanoparticles (ZnO‐NPs) via bottom‐up approach and evaluate their physiochemical, antimicrobial and anticancer properties. ZnO‐NPs were first prepared by the direct precipitation method with zinc sulphate heptahydrate, followed by characterization tests using sophisticated analytical and imaging instruments. Upon characterization, ZnO‐NPs were studied for their antimicrobial activities against Staphylococcus aureus, Staphylococcus epidermidis and Pseudomonas aeruginosa as well as their anticancer activity against breast cancer cell line (MDA‐MB 231). The ZnO‐NPs possessed a mean particle diameter of 225.2 nm and a zeta potential of −15.8 mV. A sharp absorption peak of ZnO was recorded at 354 nm via UV‐Visible spectroscopy. Hexagonal wurtzite shape of ZnO‐NPs has been observed and confirmed by Scanning Electron Microscopy (SEM) and X‐Ray diffraction (XRD). ZnO‐NPs exhibited excellent antimicrobial activity against the Gram‐positive bacteria, Staphylococcus aureus. In an in vitro cell cytotoxicity study, ZnO‐NPs showed a dose‐dependent relationship against MDA‐MB 231 breast cancer cells. It was observed that as the concentration of ZnO‐NPs increased (0.25 μg to 35 μg), there was a sharp reduction in the proliferation rate of the cancer cell line. Overall, our study reported successful synthesis of ZnO‐NPs, which can be efficient antibacterial and anticancer agents.

show abstract

Section: Resultsmentioning

confidence: 97%

Section: Particle Size and Zeta Potentialmentioning

confidence: 99%

Fabrication, Characterization and In Vitro Cell Cytotoxicity of ZnO Nanoparticles on MDA‐MB 231 Breast Cancer Cell Line

Kumar Janakiraman,

Yin Wong,

Cheng

et al. 2023

ChemistrySelect

View full text Add to dashboard Cite

show abstract

“…Zeta potential confirmed the stability of the prepared NPs as the charges were greater than +15 mV and −15 mV. Due to the high positive charge, the repulsive forces prevented aggregation [ 37 ]. Both bacterial species were gram-positive, and the Se/ZnO NPs in our study, which were positively charged, negatively affected their cell wall due to electrostatic interactions [ 38 , 39 ].…”

Section: Discussionmentioning

confidence: 89%

Effectiveness of Se/ZnO NPs in Enhancing the Antibacterial Activity of Resin-Based Dental Composites

et al. 2022

View full text Add to dashboard Cite

Biofilm formation in the resin-composite interface is a major challenge for resin-based dental composites. Using doped z nanoparticles (NPs) to enhance the antibacterial properties of resin composites can be an effective approach to prevent this. The present study focused on the effectiveness of Selenium-doped ZnO (Se/ZnO) NPs as an antibacterial nanofiller in resin composites and their impact on their mechanical properties. Pristine and Se/ZnO NPs were synthesized by the mechanochemical method and confirmed through UV-Vis Spectroscopy, FTIR (Fourier Transform Infrared) analysis, X-ray Diffraction (XRD) crystallography, Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), and Zeta analysis. The resin composites were then modified by varying concentrations of pristine and Se/ZnO NPs. A single species (S. mutans and E. faecalis) and a saliva microcosm model were utilized for antibacterial analysis. Hemolytic assay and compressive strength tests were also performed to test the modified composite resin’s cytotoxicity and mechanical strength. When incorporated into composite resin, 1% Se/ZnO NPs showed higher antibacterial activity, biocompatibility, and higher mechanical strength when compared to composites with 1% ZnO NPs. The Se/ZnO NPs has been explored for the first time as an efficient antibacterial nanofiller for resin composites and showed effectiveness at lower concentrations, and hence can be an effective candidate in preventing secondary caries by limiting biofilm formation.

show abstract

“…The sample SEM images for Case 2 (ZnO/C@rGO) shown in Figures 2(d)-2(f) suggest that the particles synthesized using PVP alleviated particle agglomeration owing to the elimination of Van der Waals forces during supersonic CS. [39,40] However, the sample for Case 3 (ZSO@rGO) shows significant agglomeration of particles (Figures 2(g)-2(i)) owing to the absence of PVP during the particle synthesis. Agglomeration is not good for electrons or Li + ions transfer, as the pathway for Li + ions increases while the electrons experience greater resistance.…”

Section: Resultsmentioning

confidence: 99%

Supersonically Sprayed Carbon-Coated Bimetallic Zn2SnO4 with Reduced Graphene Oxide for Rapid-Charging, Binder-Free, and Long-Term-Stable Lithium-Ion-Battery Anodes

Park

Joshi

Samuel

et al. 2023

International Journal of Energy Research

View full text Add to dashboard Cite

High capacity, rapid-charging, and long-term recyclability are the essential characteristics of high-performance lithium-ion battery (LIB) electrodes, which are particularly important in the electric vehicle industry. Bimetallic Zn2SnO4 nanoparticles wrapped in carbon shells were supersonically sprayed with reduced graphene oxide (rGO) nanosheets to fabricate rapid-charging, binder-free, and long-term-stable LIB anodes. The fabricated Zn2SnO4/C@rGO composite exhibited high capacity retention and specific capacity over a wide range of current densities. Zn2SnO4 was first reduced to metal oxides (ZnO and SnO2) and then to metals (Zn and Sn) during the lithiation process. The reduced metals were successively alloyed with Li+ ions, which in turn formed LiZn and LiSn. These cyclic conversions and alloying processes enhanced the performance of the LIBs, resulting in a high capacity of 1126 mAh⋅g-1 after 400 cycles at a high current density of 1000 mA·g-1; such high performance indicates the rapid-charging capability of the fabricated LIB anodes. The agglomeration of identical oxide particles was reduced during the long-term cycling process by introducing bimetallic Zn2SnO4, which was reduced to ZnO and SnO2 in the first cycle. Metal formation through the conversion and subsequent alloying processes caused the pulverization of ZnO and SnO2, whose mixture favorably alleviated agglomeration of identical oxides owing to the distinct grain boundaries of ZnO and SnO2. In addition, ZnO and SnO2 particles were confined within a carbon shell, which originated from the introduction of polyvinylpyrrolidone. The carbon shell further alleviated the particle agglomeration for Zn2SnO4/C@rGO, which is identified as the optimal case, yielding a capacity retention of 106% for the first reversible capacity at a current density of 1000 mA⋅g-1 after 400 cycles.

show abstract

Dispersion stability of zinc oxide nanoparticles in an electroless bath with various surfactants

Cited by 23 publications

References 25 publications

Fabrication, Characterization and In Vitro Cell Cytotoxicity of ZnO Nanoparticles on MDA‐MB 231 Breast Cancer Cell Line

Fabrication, Characterization and In Vitro Cell Cytotoxicity of ZnO Nanoparticles on MDA‐MB 231 Breast Cancer Cell Line

Effectiveness of Se/ZnO NPs in Enhancing the Antibacterial Activity of Resin-Based Dental Composites

Supersonically Sprayed Carbon-Coated Bimetallic Zn2SnO4 with Reduced Graphene Oxide for Rapid-Charging, Binder-Free, and Long-Term-Stable Lithium-Ion-Battery Anodes

Contact Info

Product

Resources

About