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A facile synthesis of hybrid silicon quantum dots and fluorescent detection of bovine hemoglobin

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Abstract

Silicon quantum dots (SiQDs) feature unique optical properties and biological compatibility. The effective synthesis and surface modification of SiQDs in an aqueous solution can enrich the variety and applications. A new type of hybrid SiQDs was designed and fabricated by using two kinds of silicon precursors. (3-Aminopropyl)triethoxysilane (APTES), N-trimethylsilylimidazole (TSIM) and L-ascorbic acid were treated via an hydrothermal method. Two silicon precursors were used for the synthesis of SiQDs, which enabled the functioning of SiQDs and avoided its further modification. The hybrid SiQDs are endowed with amino and imidazole groups, higher nitrogen content, fluorescence intensity, and longer fluorescence lifetime. They were applied in the fluorescence detection of bovine hemoglobin with the linear range of 10 nM–10 μM and the detection limit of 12 nM.

Graphical abstract: A facile synthesis of hybrid silicon quantum dots and fluorescent detection of bovine hemoglobin

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Publication details

The article was received on 07 Oct 2019, accepted on 06 Nov 2019 and first published on 13 Nov 2019


Article type: Paper
DOI: 10.1039/C9NJ05033G
New J. Chem., 2019, Advance Article

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    A facile synthesis of hybrid silicon quantum dots and fluorescent detection of bovine hemoglobin

    D. Li, X. Xu, P. Zhou, Y. Huang, Y. Feng, Y. Gu, M. Wang and Y. Liu, New J. Chem., 2019, Advance Article , DOI: 10.1039/C9NJ05033G

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