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Proceedings Paper

The toxicity and invasive effects of QDs on mung bean development
Author(s): Peng Zhai; Xiaomei Wang; Ruhua Wang; Xuan Huang; Gang Feng; Guimiao Lin; Qiang Chen; Gaixia Xu; Danni Chen
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Paper Abstract

Objective: Nowadays, the nanomaterials have been applied in every aspects of our life, including cosmetics, fresh-keeping, antisepsis and medicines. However, we know little about the toxic effects of nanoparticles towards plants. In this thesis, we synthesized quantum dots (QDs), and then toxicity and invasive effects of QDs for mung beans were investigated. Methods: We synthesised red CdTe QDs in water sphase with L-Cystein stabilizers, then prepared different concentration of QDs solution to cultivate mung bean plant, the radical length of mung beans was measured after four days every day, after 7 days, the distribution of QDs in mung bean plant was recorded under the microscopic. Results: The result showed the QDs inhibited the growth of mung beans, the higher the concentration of QDs was, the greater the inhibition effect was. After 7 days, the radicle average lengths of mung beans in different concentrations of QDs solution(blank 0.1μmol/L 0.2μmol/L 0.5 μmol/L 1 μmol/L)were 19.350± 0.427, 14.050± 0.879, 10.525± 0.554, 7.250± 0.522, 7.650± 0.229. The QDs mostly adhered onto the root surface and hairs. Conclusion: In conclusion, the QDs synthesized with L-cystein have effects on the growth of mung beans. However, it is necessary to do more experiments to confirm the mechanism of the toxicity effect of QDs on plants.

Paper Details

Date Published: 17 September 2014
PDF: 10 pages
Proc. SPIE 9230, Twelfth International Conference on Photonics and Imaging in Biology and Medicine (PIBM 2014), 92300P (17 September 2014); doi: 10.1117/12.2069000
Show Author Affiliations
Peng Zhai, Shenzhen Univ. (China)
Xiaomei Wang, Shenzhen Univ. (China)
Ruhua Wang, Shenzhen Univ. (China)
Xuan Huang, Shenzhen Univ. (China)
Gang Feng, Shenzhen Univ. (China)
Guimiao Lin, Shenzhen Univ. (China)
Qiang Chen, Shenzhen Univ. (China)
Gaixia Xu, Shenzhen Univ. (China)
Danni Chen, Shenzhen Univ. (China)

Published in SPIE Proceedings Vol. 9230:
Twelfth International Conference on Photonics and Imaging in Biology and Medicine (PIBM 2014)
Qingming Luo; Lihong V. Wang; Valery V. Tuchin, Editor(s)

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