Scholarlink

<p>In this work, we have reported a cost-effective, highly sensitive, non-enzymatic and non-invasive electrochemical glucose sensing electrode using TiO<sub>2</sub>/CuO core-shell nanorods. The core TiO₂ nanorods were synthesized using a hydrothermal method, whereas the shell CuO solution was prepared using a sol–gel technique and deposited onto TiO₂ via a dip-coating method. The surface morphology, internal structure, elemental oxidation states, chemical composition, and structural phase of the core-shell electrodes were characterized using scanning electron microscopy (SEM). transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). The electrochemical glucose sensing performances were studied using cyclic voltammetry (CV) and amperometric i-t measurements and electrochemical impedance spectroscopy (EIS). The maximum glucose sensitivity exhibits by TiO<sub>2</sub>/CuO nanorods is 4494 µA mM<sup>−1</sup>cm<sup>− 2</sup> with linear detection range of 0.005–0.325 mM and limit of detection of 16 µM. Moreover, the electrode demonstrates good selectivity against common interfering agent, along with very good reproducibility and long-term stability. Practical applicability of fabricated TiO2/CuO nanorod based electrode is validated through glucose detection in human saliva samples and also compared with blood glucose, indicating reliable sensing performance.</p> Graphical Abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Non-Enzymatic, Non-Invasive TiO2/CuO Core-Shell Heterostructures Based Saliva Glucose Sensor

  • 期刊论文

  • 发表日期：

    2026年4月10日

查看全文
  • Kaberi Saha,
  • Tanmoy Majumder,
  • Kamalesh Debnath

摘要

In this work, we have reported a cost-effective, highly sensitive, non-enzymatic and non-invasive electrochemical glucose sensing electrode using TiO2/CuO core-shell nanorods. The core TiO₂ nanorods were synthesized using a hydrothermal method, whereas the shell CuO solution was prepared using a sol–gel technique and deposited onto TiO₂ via a dip-coating method. The surface morphology, internal structure, elemental oxidation states, chemical composition, and structural phase of the core-shell electrodes were characterized using scanning electron microscopy (SEM). transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). The electrochemical glucose sensing performances were studied using cyclic voltammetry (CV) and amperometric i-t measurements and electrochemical impedance spectroscopy (EIS). The maximum glucose sensitivity exhibits by TiO2/CuO nanorods is 4494 µA mM−1cm− 2 with linear detection range of 0.005–0.325 mM and limit of detection of 16 µM. Moreover, the electrode demonstrates good selectivity against common interfering agent, along with very good reproducibility and long-term stability. Practical applicability of fabricated TiO2/CuO nanorod based electrode is validated through glucose detection in human saliva samples and also compared with blood glucose, indicating reliable sensing performance.

Graphical Abstract