高等学校化学学报 ›› 2024, Vol. 45 ›› Issue (9): 20240215.doi: 10.7503/cjcu20240215

• 分析化学 • 上一篇    下一篇

表面增强拉曼光谱快速测定尿液中的葡萄糖

张禹1, 陈龙1, 王中才2, 胡广1, 徐东1, 盛全康1, 陈奥1, 陈韶云1(), 胡成龙1(), 陈建3   

  1. 1.江汉大学光电材料与技术学院, 武汉 430056
    2.深圳全棉时代科技有限公司, 深圳 518110
    3.中山大学分析测试中心, 广州 510275
  • 收稿日期:2024-04-26 出版日期:2024-09-10 发布日期:2024-05-31
  • 通讯作者: 陈韶云,胡成龙 E-mail:cescsy@jhun.edu.cn;ceshcl@jhun.edu.cn
  • 基金资助:
    湖北省自然科学基金(2023AFB890)

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)

摘要:

通过多元醇还原法制备了大长径比的银(Ag)纳米线微纳结构, 并将其作为表面增强拉曼散射(SERS)的基底, 以罗丹明6G(R6G)为探针分子研究了Ag纳米线的SERS效应, 实验结果表明, Ag纳米线SERS基底对R6G的最低检测浓度为10‒10 mol/L, 增强因子约为1.0×104; 以610和772 cm‒1散射峰强度计算得出的相对标准偏差(RSD)分别为14.66%和13.75%, 表明R6G 在Ag纳米线基底上的SERS信号强度分布较均一, 具有较好的信号重现性. 另外, 将Ag纳米线作为SERS基底用于检测尿液中低含量的D-(+)-葡萄糖, 发现Ag纳米线对 D-(+)-葡萄糖的浓度检出限低至10‒6 mg/mL, RSD值低于8%, 说明Ag纳米线对于D-(+)-葡萄糖的痕量检测具有良好的灵敏度和信号重现性. 该研究可为糖尿病的血糖监测和早期预防提供一定的技术支持.

关键词: 表面增强拉曼光谱, 银纳米线, 糖尿病, 葡萄糖, 痕量检测

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

中图分类号: 

TrendMD: