Fabrication of Graphene-Modified Biosensors by Fused Deposition Modeling 3D Printing

Background

Electrochemical sensors are devices that use electrical signals to detect the presence or concentration of a target analyte. These sensors are widely used in a range of applications including glucose sensors, environmental monitoring, food safety testing, medical diagnostics, and industrial process control. However, the manufacturing process for electrochemical sensors is complicated and expensive.

Invention Description

Researchers at Arizona State University have developed a new method for creating electrochemical sensors using 3D printing technology. This method uses Fused Deposition Modeling (FDM) techniques with a Reduced Graphene Oxide (rGO) coating for surface modification. This method enables 3D detection surfaces for increased sensing areas, and facilitates the design of multifunctional sensors (e.g., multi-head or bendable sensors). This method also improves the electrochemical activity of the sensor, particularly for detection of hydrogen peroxide.

Potential Applications

• Medical and biological research
• Environmental monitoring
• Industrial process control
• Food safety testing
• Medical devices (e.g., glucose sensors, diagnostics)

Benefits and Advantages

• Simplified production process
• Removes need for post-processing steps
• Enhanced mechanical robustness
• Versatility in design and functionality
• Consistent quality
• Sustainable – reduces environmental footprint