Optical properties and formation mechanism of radial ZnO hexagonal nanoprism clusters

Deng, Yuan; Wang, Guang-Sheng; Xiang, Yan; Chen, Yang; Gao, Xuanqiao; Guo, Lin

doi:10.1016/j.jallcom.2008.11.069

Cited by 20 publications

(10 citation statements)

References 15 publications

(13 reference statements)

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“…Spectrophotometric analysis was performed at a wavelength of 380 nm 18,22,23 showed that among the tested reagents (Arabic gum, polyethylene glycol 8 kDa, polyethylene glycol 14 kDa, poly(ethylenimine), polyvinyl alcohol, gelatin, Pluronic PF127, sodium dodecyl sulfate, glycine, horse serum, and bovine serum albumin), only Arabic gum produced a stable and highly concentrated dispersion (Table 1). This dispersion was thus chosen for further investigation and biological assays.…”

Section: Zinc Oxide Nanoparticle Dispersionmentioning

confidence: 99%

Zinc oxide nanoparticles as selective killers of proliferating cells

Raffa¹,

Taccola²,

Riggio³

et al. 2011

IJN

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Background: It has recently been demonstrated that zinc oxide nanoparticles (ZnO NPs) induce death of cancerous cells whilst having no cytotoxic effect on normal cells. However, there are several issues which need to be resolved before translation of zinc oxide nanoparticles into medical use, including lack of suitable biocompatible dispersion protocols and a better understanding being needed of the mechanism of their selective cytotoxic action. \ud Methods: Nanoparticle dose affecting cell viability was evaluated in a model of proliferating cells both experimentally and mathematically. The key issue of selective toxicity of ZnO NPs toward proliferating cells was addressed by experiments using a biological model of noncancerous cells, ie, mesenchymal stem cells before and after cell differentiation to the osteogenic lineage.\ud Results: In this paper, we report a biocompatible protocol for preparation of stable aqueous solutions of monodispersed zinc oxide nanoparticles. We found that the threshold of intracellular ZnO NP concentration required to induce cell death in proliferating cells is 0.4 ± 0.02 mM. Finally, flow cytometry analysis revealed that the threshold dose of zinc oxide nanoparticles was lethal to proliferating pluripotent mesenchymal stem cells but exhibited negligible cytotoxic effects to osteogenically differentiated mesenchymal stem cells.\ud Conclusion: Results confirm the ZnO NP selective cytotoxic action on rapidly proliferating cells, whether benign or malignant

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Section: Zinc Oxide Nanoparticle Dispersionmentioning

confidence: 99%

Zinc oxide nanoparticles as selective killers of proliferating cells

Raffa¹,

Taccola²,

Riggio³

et al. 2011

IJN

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“…There are some reports on the effect of doping of various transition metals on the structural and electrical conductivity of ZnO prepared by several methods [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Structural, electrical and magnetic properties of Co and Fe co-doped ZnO nanoparticles prepared by solution combustion method

Dinesha

Jayanna

Mohanty

et al. 2010

Journal of Alloys and Compounds

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“…Zinc oxide (ZnO) is a n-type metal oxide semiconductor with wide band gap (3.37 eV) having properties suitable for various applications such as ultraviolet opto-electronic devices, transparent high power and high frequency electronic devices, piezoelectronic transducers and chemical gas sensors [1][2][3][4][5][6][7]. The progress has been achieved in the fabrication of spintronic devices from transition metals doped ZnO [8].…”

Section: Introductionmentioning

confidence: 99%