Chem. J. Chinese Universities ›› 2024, Vol. 45 ›› Issue (9): 20240215.doi: 10.7503/cjcu20240215

• Analytical Chemistry • Previous Articles     Next Articles

Rapid Determination of D⁃(+)⁃Glucose in Urine Using Surface⁃enhanced Raman Spectroscopy

ZHANG Yu1, CHEN Long1, WANG Zhongcai2, HU Guang1, XU Dong1, SHENG Quankang1, CHEN Ao1, CHEN Shaoyun1(), HU Chenglong1(), CHEN Jian3   

  1. 1.School of Optoelectronic Materials & Technology,Jianghan University,Wuhan 430056,China
    2.Shenzhen Purcotton Technology Co. ,Ltd. ,Shenzhen 518110,China
    3.Instrumental Analysis and Research Center,Sun Yat?sen University,Guangzhou 510275,China
  • Received:2024-04-26 Online:2024-09-10 Published:2024-05-31
  • Contact: CHEN Shaoyun, HU Chenglong E-mail:cescsy@jhun.edu.cn;ceshcl@jhun.edu.cn
  • Supported by:
    the Hubei Provincial Natural Science Foundation, China(2023AFB890)

Abstract:

The silver(Ag) snowiness micro-nanostructures with a large aspect ratio was prepared by the polyol reduction method, and it was used as the substrate for surface enhanced Raman scattering(SERS). Rhodamine 6G(R6G) was used as the probe molecule to study the SERS effect of Ag nanowires. The results showed that the minimum detection concentration of R6G on Ag nanowires was 10‒10 mol/L, and the enhancement factor(EF) was about 1.0×104. The relative standard deviation(RSD) calculated based on the scattering peak intensities of 610 and 772 cm‒1 was 14.66% and 13.75%, respectively, indicating that the SERS signal intensity distribution of R6G on Ag nanowires substrate was relatively uniform to lead to good signal reproducibility. In addition, Ag nanowires were used as SERS substrates to detect low levels of D-(+)-glucose in urine. It was found that the detection limit of Ag nanowires for D-(+)-glucose concentration was as low as 10‒6 mg/mL, and the RSD value was less than 8%, indicating that Ag nanowires had good sensitivity and signal reproducibility for trace detection of D-(+)-glucose. This study could provide some technical support for blood glucose monitoring and early prevention of diabetes.

Key words: Surface-enhanced Raman spectroscopy, Silver nanowires, Diabetes, Glucose, Trace detection

CLC Number: 

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