4.6 Article

A Tube-Integrated Painted Biosensor for Glucose and Lactate

Journal

SENSORS
Volume 18, Issue 5, Pages -

Publisher

MDPI
DOI: 10.3390/s18051620

Keywords

biosensor; painted; tube; enzyme; glucose; lactate; hydrogen peroxide

Funding

  1. National Double First-Class University Fund of China
  2. National Thousand-Young-Talent Program of China

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Developing a simple and direct approach for sensitive, specific, and rapid detection of metabolic compounds is of great importance for a variety of biological, medical, and food applications. Tubes are a highly portable and accessible container shape which are widely used for scientific research in cell biology and chemical synthesis, and which are also of great use in domestic health care applications. Here, we show for the first time the development of a tube-based painted amperometric biosensor for the detection of glucose and lactate. The sensor was prepared by printing carbon graphite and silver/silver chloride inks on the interior wall of the tube and then immobilizing glucose oxidase or lactate oxidase on the sensor. The sensor showed a sensitive, rapid, and reliable detection of glucose and lactate. We anticipate that these results could open new avenues for the development of painted biosensors, and toward advanced biosensor applications.

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