应用化学 ›› 2024, Vol. 41 ›› Issue (1): 156-163.DOI: 10.19894/j.issn.1000-0518.230260

• 研究论文 • 上一篇    下一篇

三维葡萄糖电化学传感器与胶原水凝胶集成实时监测细胞代谢

姚春莹1, 朱晓艳2, 刘艳玲1()   

  1. 1.武汉大学化学与分子科学学院,武汉 430072
    2.武汉商学院食品科技学院,武汉 430056
  • 收稿日期:2023-08-30 接受日期:2023-11-18 出版日期:2024-01-01 发布日期:2024-01-30
  • 通讯作者: 刘艳玲
  • 基金资助:
    国家自然科学基金(22122408)

A 3D Glucose Electrochemical Sensor Integrated with Collagen Hydrogel for Real-Time Monitoring of Cell Metabolism

Chun-Ying YAO1, Xiao-Yan ZHU2, Yan-Ling LIU1()   

  1. 1.College of Chemistry and Molecular Sciences,Wuhan University,Wuhan 430072,China
    2.School of Food Science and Technology,Wuhan Business University,Wuhan 430056,China
  • Received:2023-08-30 Accepted:2023-11-18 Published:2024-01-01 Online:2024-01-30
  • Contact: Yan-Ling LIU
  • About author:yanlingliu@whu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(22122408)

摘要:

葡萄糖代谢的实时监测不仅能够提供细胞生长状态信息,还有助于深入理解细胞代谢机制。电化学传感器已成为葡萄糖实时动态测量的重要方法之一,然而,目前报道的葡萄糖传感器大多基于二维电极,很难与三维细胞培养体系良好兼容并进行准确检测。 通过在对H2O2还原具有催化作用的多孔电极表面固定葡萄糖氧化酶(GOD),制备了一种灵敏度高、选择性好的三维葡萄糖电化学传感器。 然后,将包裹了肿瘤细胞(MCF-7)的胶原水凝胶填充到三维传感器孔隙,构建了兼具细胞三维培养和电化学检测于一体的集成平台。通过实时监测MCF-7细胞培养环境中葡萄糖的浓度变化,实现了肿瘤细胞在抗癌药物作用下葡萄糖代谢能力的实时分析,为细胞能量代谢行为研究提供了一种新的评估方法。

关键词: 三维传感器, 电化学检测, 细胞培养, 葡萄糖代谢

Abstract:

Real-time monitoring of glucose metabolism can not only provide information on cell growth status, but also contribute to the deep understanding of the mechanism of cell metabolism. Electrochemical sensors have become an important tool in real-time detection of glucose. However, most reported glucose sensors are based on two-dimensional electrodes that are hardly compatible with three-dimensional cell culture systems for accurate detection. Herein, a 3D glucose electrochemical sensor with high sensitivity and selectivity is prepared via immobilizing glucose oxidase (GOD) on the surface of a porous electrode which could catalyze H2O2 reduction. Then, collagen hydrogel with tumor cells (MCF-7) therein is filled into the pores of the 3D sensor, and thus an integrated platform of 3D cell culture for electrochemical detection is constructed. This platform allows real-time monitoring of the change in glucose concentration in culture medium when MCF-7 cells are cultured under different conditions, providing a new method for evaluating the cell metabolism activities.

Key words: 3D sensor, Electrochemical detection, Cell culture, Glucose metabolism

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