Preparation of 3D nano silver trees/sea urchin-like gold and SERS detection of uric acid

被引：7
|
作者：
Lin, Xin [1 ]
Li, Li-Jun [1 ,3 ]
Guo, He-Yuan-Xi [1 ]
Li, Rui [1 ]
Feng, Jun [2 ,3 ]
机构：
[1] Guangxi Univ Sci & Technol, Coll Biol & Chem Engn, Guangxi Key Lab Green Proc Sugar Resources, Liuzhou 545006, Guangxi, Peoples R China
[2] Guangxi Univ Sci & Technol, Sch Med, Liuzhou 545005, Guangxi, Peoples R China
[3] Guangxi Univ Sci & Technol, Coll Biol & Chem Engn, 268 Donghuan Rd, Liuzhou, Guangxi, Peoples R China
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2024年 / 305卷
关键词：
Surface Enhanced Raman Spectroscopy (SERS); 3D nanosilver trees; Sea urchin-like nano gold; Uric acid; ENHANCED RAMAN-SCATTERING; NANOPARTICLES; SUBSTRATE; SYSTEM;
D O I：
10.1016/j.saa.2023.123464
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
In this paper, 3D nano-silver trees/sea urchin-like gold Surface Enhanced Raman Spectroscopy (SERS) substrates were prepared by chemical reduction method, characterized by SEM, EDS, UV-Vis and XRD et.al, and the preparation process was optimized using Rhodamine B (RB) as the Raman signal molecule. The SERS characteristics of Uric Acid on this substrate were investigated and the results showed that the SERS substrate had a Raman enhancement factor of 1.9 x 10(7) for RB, and also had a significant Raman enhancement effect on Uric Acid. The SERS intensity (I-SERS) at 1400 cm(-1) showed a good linear relationship with the logarithm value of uric acid concentration (log C) between the range of 5 x 10(-4) M to 1 x 10(-7) M. The linear fitting equation was I-SERS = 890 (log C) + 8066 (R-2 = 0.983), and the LOD = 2.8 x 10(-)8 M. The spiked test was performed in human serum with recoveries ranging from 82.86% to 125.13% and RSD (n = 3) < 3.5%.
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页数：8
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