An Evaluation of Graphene as a Multi-Functional Heating Element for Biomedical Applications

Area of Science:

• Materials Science
• Biomedical Engineering
• Thermal Engineering

Background:

• Graphene's exceptional thermal conductivity, attributed to high-speed acoustic phonons, makes it suitable for thermal applications.
• Commercial biomedical devices increasingly explore advanced materials for enhanced functionality.

Purpose of the Study:

• To evaluate the thermal characteristics and performance of a commercial graphene-based waist protector.
• To assess the long-term operational stability and effectiveness of graphene as a heating element in a biomedical device.

Main Methods:

• Utilized thermal imaging and Raman microscopy for comprehensive device assessment.
• Monitored device performance over extended periods of continuous operation (up to 5 days).

Main Results:

• The graphene waist protector functioned effectively as an infrared emitter with low power consumption.
• No significant performance variations were observed during the initial 3 hours of operation.
• After 12 hours, temperature fluctuations and decreased electrical resistance were noted, attributed to graphene/polymer adhesion loss from thermal fatigue.
• A 15 °C temperature difference was recorded after 5 days of continuous use.

Conclusions:

• Graphene can be effectively integrated as an operational thermal heating system in biomedical devices.
• Long-term use may lead to thermal fatigue, impacting graphene/polymer adhesion and device performance.
• Further research into material adhesion and thermal management is warranted for prolonged biomedical applications.