Vijay Kumar Sukariya

In biofluid mechanics applications, Al₂O₃ is typically used in its pure or nearly pure form, where it behaves as an electrical insulator. Its electrical conductivity at room temperature is extremely low, usually in the range of:

10-14 to 10-12 S/cm

This insulating property is particularly beneficial in biomedical systems to prevent electrical interference, minimize electrochemical reactions, and ensure biocompatibility. Hence, Al₂O₃ is commonly employed as a protective or insulating layer in biosensors, implants, and microfluidic devices involving biofluids.

If doped or used at elevated temperatures, its conductivity may increase slightly, but under physiological conditions, it remains effectively non-conductive.

Jyoti Gaur Thank you for the clarification.