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Nanomaterials (Basel). 2018 Apr 26;8(5). pii: E277. doi: 10.3390/nano8050277.

A Sensitive Gold Nanoplasmonic SERS Quantitative Analysis Method for Sulfate in Serum Using Fullerene as Catalyst.

Author information

1
Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China. lcn7882342@163.com.
2
School of Food and Bioengineering, Hezhou University, Hezhou 542899, China. lcn7882342@163.com.
3
Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China. 18074841309@163.com.
4
School of Food and Bioengineering, Hezhou University, Hezhou 542899, China. kira0217@foxmail.com.
5
Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China. ahliang2008@163.com.
6
Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China. gqwen@mailbox.gxnu.edu.cn.
7
Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China. zljiang@mailbox.gxnu.edu.cn.

Abstract

Fullerene exhibited strong catalysis of the redox reaction between HAuCl₄ and trisodium citrate to form gold nanoplasmon with a strong surface-enhanced Raman scattering (SERS) effect at 1615 cm−1 in the presence of Vitoria blue B molecule probes. When fullerene increased, the SERS peak enhanced linearly due to formation of more AuNPs as substrate. Upon addition of Ba2+, Ba2+ ions adsorb on the fullerene surface to inhibit the catalysis of fullerene that caused the SERS peak decreasing. Analyte SO₄2− combined with Ba2+ to form stable BaSO₄ precipitate to release free fullerene that the catalysis recovered, and the SERS intensity increased linearly. Thus, a new SERS quantitative analysis method was established for the detection of sulfate in serum samples, with a linear range of 0.03⁻3.4 μM.

KEYWORDS:

fullerene catalysis; gold nanoplasmon; sulfate; surface-enhanced Raman scattering (SERS)

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