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Ag nanoparticles-decorated ZnO nanorod array on a mechanical flexible substrate with enhanced optical and antimicrobial properties.

Chen Y, Tse WH, Chen L, Zhang J - Nanoscale Res Lett (2015)

Bottom Line: As compared to the bare ZnO NRs, the heterostructured Ag-ZnO nanorod array shows enhanced ultraviolet (UV) absorption at 440 nm, and significant emission in the visible region (λem = 542 nm).In addition, the antimicrobial efficiency of Ag-ZnO heterostructured nanorod array shows obvious improvement as compared to bare ZnO nanorod array.No significant toxic effect is imposed on the cells.

View Article: PubMed Central - PubMed

Affiliation: Department of Chemical & Biochemical Engineering, University of Western Ontario, 1151 Richmond Street, London, Ontario Canada N6A 5B9.

ABSTRACT
Heteronanostructured zinc oxide nanorod (ZnO NR) array are vertically grown on polydimethylsiloxane (PDMS) through a hydrothermal method followed by an in situ deposition of silver nanoparticles (Ag NPs) through a photoreduction process. The Ag-ZnO heterostructured nanorods on PDMS are measured with an average diameter of 160 nm and an average length of 2 μm. ZnO NRs measured by high-resolution transmission electron microscope (HRTEM) shows highly crystalline with a lattice fringe of 0.255 nm, which corresponds to the (0002) planes in ZnO crystal lattice. The average diameter of the Ag NPs in situ deposited on the ZnO NRs is estimated at 22 ± 2 nm. As compared to the bare ZnO NRs, the heterostructured Ag-ZnO nanorod array shows enhanced ultraviolet (UV) absorption at 440 nm, and significant emission in the visible region (λem = 542 nm). In addition, the antimicrobial efficiency of Ag-ZnO heterostructured nanorod array shows obvious improvement as compared to bare ZnO nanorod array. The cytotoxicity of ZnO nanorod array with and without Ag NPs was studied by using 3 T3 mouse fibroblast cell line. No significant toxic effect is imposed on the cells.

No MeSH data available.


Related in: MedlinePlus

Relative cell viability of control samples (no Ag-ZnO NRs) and Ag ZnO NRs.
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Fig9: Relative cell viability of control samples (no Ag-ZnO NRs) and Ag ZnO NRs.

Mentions: The cell response to heterostructured Ag-ZnO NRs was further investigated using NIH/3 T3 mouse fibroblast cell line. Control sample (no nanostructured materials) and Ag-ZnO NRs were incubated with cells for 24 h. Figure 9 shows the relative cell viability ([Cr/Co] 100%) vs. different concentration of nanomaterials. The relative cell viabilities (%) of NIH/3 T3 mouse fibroblast cells treated by samples are correspondingly normalized to the control sample. Here, Co is the viable cell numbers of the control sample, and Cr is the viable cell numbers treated with the heterostructured Ag-ZnO NRs. The error bars are the calculated standard deviation. The relative viability of cells treated with 0.03 mg/ml of Ag-ZnO NRs is about 103 ± 5%. The relative viabilities (%) of cells treated with higher concentrations of Ag-ZnO NRs (0.07 and 0.10 mg/ml) are higher than 88 ± 5% after 24-h incubation. The results indicate that no significant harmful effect is imposed to the cells.Figure 9


Ag nanoparticles-decorated ZnO nanorod array on a mechanical flexible substrate with enhanced optical and antimicrobial properties.

Chen Y, Tse WH, Chen L, Zhang J - Nanoscale Res Lett (2015)

Relative cell viability of control samples (no Ag-ZnO NRs) and Ag ZnO NRs.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4385129&req=5

Fig9: Relative cell viability of control samples (no Ag-ZnO NRs) and Ag ZnO NRs.
Mentions: The cell response to heterostructured Ag-ZnO NRs was further investigated using NIH/3 T3 mouse fibroblast cell line. Control sample (no nanostructured materials) and Ag-ZnO NRs were incubated with cells for 24 h. Figure 9 shows the relative cell viability ([Cr/Co] 100%) vs. different concentration of nanomaterials. The relative cell viabilities (%) of NIH/3 T3 mouse fibroblast cells treated by samples are correspondingly normalized to the control sample. Here, Co is the viable cell numbers of the control sample, and Cr is the viable cell numbers treated with the heterostructured Ag-ZnO NRs. The error bars are the calculated standard deviation. The relative viability of cells treated with 0.03 mg/ml of Ag-ZnO NRs is about 103 ± 5%. The relative viabilities (%) of cells treated with higher concentrations of Ag-ZnO NRs (0.07 and 0.10 mg/ml) are higher than 88 ± 5% after 24-h incubation. The results indicate that no significant harmful effect is imposed to the cells.Figure 9

Bottom Line: As compared to the bare ZnO NRs, the heterostructured Ag-ZnO nanorod array shows enhanced ultraviolet (UV) absorption at 440 nm, and significant emission in the visible region (λem = 542 nm).In addition, the antimicrobial efficiency of Ag-ZnO heterostructured nanorod array shows obvious improvement as compared to bare ZnO nanorod array.No significant toxic effect is imposed on the cells.

View Article: PubMed Central - PubMed

Affiliation: Department of Chemical & Biochemical Engineering, University of Western Ontario, 1151 Richmond Street, London, Ontario Canada N6A 5B9.

ABSTRACT
Heteronanostructured zinc oxide nanorod (ZnO NR) array are vertically grown on polydimethylsiloxane (PDMS) through a hydrothermal method followed by an in situ deposition of silver nanoparticles (Ag NPs) through a photoreduction process. The Ag-ZnO heterostructured nanorods on PDMS are measured with an average diameter of 160 nm and an average length of 2 μm. ZnO NRs measured by high-resolution transmission electron microscope (HRTEM) shows highly crystalline with a lattice fringe of 0.255 nm, which corresponds to the (0002) planes in ZnO crystal lattice. The average diameter of the Ag NPs in situ deposited on the ZnO NRs is estimated at 22 ± 2 nm. As compared to the bare ZnO NRs, the heterostructured Ag-ZnO nanorod array shows enhanced ultraviolet (UV) absorption at 440 nm, and significant emission in the visible region (λem = 542 nm). In addition, the antimicrobial efficiency of Ag-ZnO heterostructured nanorod array shows obvious improvement as compared to bare ZnO nanorod array. The cytotoxicity of ZnO nanorod array with and without Ag NPs was studied by using 3 T3 mouse fibroblast cell line. No significant toxic effect is imposed on the cells.

No MeSH data available.


Related in: MedlinePlus