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Observation of Uptake and Distribution of Quantum Dots in Plants

Published online by Cambridge University Press:  31 January 2011

Annie R. Wang
Affiliation:
[email protected], Ocean NanoTech, LLC, Springdale, Arkansas, United States
Hengyi Xu
Affiliation:
[email protected], Ocean NanoTech, Springdale, Arkansas, United States
John Dixon
Affiliation:
[email protected], United States
Zoraida Pascual Aguilar
Affiliation:
[email protected]@yahoo.com, Ocean NanoTech, Biology, 2143 Worth Lane, Springdale, Arkansas, 72764, United States, 4792632638
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Abstract

Engineered nanoparticles that offer unique physical and chemical properties are rapidly flooding the market for commercial applications. The applications include, but are not limited to, cosmetic products, light emitting diodes, solid state display, drug delivery, disease diagnosis, nanoscale drug reformulations, MRI contrast agents, and new treatments. Predictions have indicated a dramatic increase in the market for nanotechnology and corresponding products to reach $1 trillion in 2012. As a result of the predicted increase in the use of NPs as components of consumer product, the presence of engineered nanoparticles in the environment has sparked human health safety concerns. NPs may be introduced to organisms by inhalation, intravenous (usually purposefully), ingestion, or absorption through the skin. It is projected that the total production of NPs will reach 58,000 tons/year in 2011-2020 which assures human exposure to NPs at the workplace, in food and drinking water, and wearable consumer products. This paper addresses the QD distribution when plants are exposed to NPs. Mung beans were incubated with aqueous solutions of quantum dots and allowed to grow for 21 days. The seedlings were sectioned and observed under the microscope to establish the locations of NPs with respect to the roots, stem, and leaves.

Type
Research Article
Copyright
Copyright © Materials Research Society 2010

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References

1 Sun, Q. J., Wang, Y. A., Li, L. S., Wang, D. Y., Zhu, T., Xu, J., Yang, C. H. and Li, Y. F., Nature Photonics, 1, 717 (2007) Bright and color-saturated red, orange, yellow and green light emitting diodes based on core/shell quantum dots with CdSe core.Google Scholar
2 Lily Yang, H. M., Wang, Y. Andrew, Cao, Zehong, Peng, Xianghong, Wang, Xiaoxia,; Hongwei Duan, C. N., Yuan, Qingan, Adams, Gregory, Smith, Mark Q.,; Wood, William C., Gao., X., and Nie, Shuming, Single Chain Epidermal Growth Factor Receptor Antibod Conjugated Nanoparticles for in vivo Tumor Targeting and Imaging. Small 2009, 5, (2), 235243 Google Scholar