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Fabrication of Lanthanum Modified Organo Silicon Quantum Dots and its Promotion on the Growth of Cotton
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  • Shuai Han,
  • Yicheng Ren,
  • Cuifang Li,
  • Xiaoxue Du,
  • Songbo Yuan,
  • Lijuan Liu,
  • Fangfang Wei,
  • Dandan Zhang,
  • Baoxin Yang,
  • Zhiying Ma
Shuai Han
Hebei University of Engineering
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Yicheng Ren
Hebei University of Engineering
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Cuifang Li
Handan Academy of Agricultural Sciences
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Xiaoxue Du
Hebei University of Engineering
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Songbo Yuan
Handan Academy of Agricultural Sciences
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Lijuan Liu
Hebei University of Engineering
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Fangfang Wei
Hebei University of Engineering
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Dandan Zhang
Hebei University of Engineering
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Baoxin Yang
Handan Academy of Agricultural Sciences

Corresponding Author:bxyanghd@163.com

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Zhiying Ma
Hebei Agricultural University
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Abstract

Lanthanum modified organo silicon quantum dots (La-SiQDs) were fabricated by a simple one-step hydrothermal method. The obtained La-SiQDs exhibited good water solubility, excellent stability and strong fluorescence. The effect of La-SiQDs on the growth of cotton sprouts was further explored. Interestingly, the La-SiQDs could promote growth obviously and the optimum concentration was measured to be 0.015 mg/mL, which was much lower than that of the control ones without lanthanum functionalization. Further analysis results showed that La-SiQDs could be adsorbed by the roots of cotton sprouts more easily than that of the control ones, which might be induced by the enhancement of endocytosis in root cells triggered by the La-SiQDs. This work implied that lanthanide modification might be an effective method to obtain silicon quantum dots with higher physiological activity, and held a positive significance for plant physiology and agricultural production.