Issue 44, 2015
From the journal:

RSC Advances

A facile high-speed vibration milling method to mass production of water-dispersible silicon quantum dots for long-term cell imaging†

Jiechao Ge,*a   Pengpeng Chen,ab   Qingyan Jia,ab   Weimin Liu,a   Hangyue Zhou,ab   Bingjiang Zhou,a   Qingyun Liu*b  and  Pengfei Wanga  

* Corresponding authors

a Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, P. R. China
E-mail: jchge2010@mail.ipc.ac.cn

b College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266510, P. R. China
E-mail: qyliu@sdust.edu.cn

Abstract

A high-speed vibration milling (HSVM) method was applied to synthesize water-dispersible silicon quantum dots (SiQDs). Highly reactive free radicals (HOOCCH2CH2˙) produced from an acyl peroxide under HSVM conditions reacted with hydrophobic Si chips to produce highly water-dispersible SiQDs, which were characterized in detail by spectroscopic and microscopic techniques. Further experiments showed that the SiQDs are photostable, biocompatible, and suitable for long-term fluorescent cellular imaging. Our results provide a new methodology for large-scale synthesis of water-dispersible SiQDs, which are promising for various optoelectronic and biological applications.

Graphical abstract: A facile high-speed vibration milling method to mass production of water-dispersible silicon quantum dots for long-term cell imaging

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Supplementary files

Article information

DOI
https://doi.org/10.1039/C5RA02474A
Article type
Communication
Submitted
09 Feb 2015
Accepted
10 Apr 2015
First published
13 Apr 2015

RSC Adv., 2015,5, 35291-35296

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A facile high-speed vibration milling method to mass production of water-dispersible silicon quantum dots for long-term cell imaging

J. Ge, P. Chen, Q. Jia, W. Liu, H. Zhou, B. Zhou, Q. Liu and P. Wang, RSC Adv., 2015, 5, 35291 DOI: 10.1039/C5RA02474A

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