[Research on glucose measuring technique by surface plasmon resonance based on thiol coupling]

Area of Science:

• Biomedical Engineering
• Analytical Chemistry
• Biochemistry

Background:

• Accurate glucose monitoring is crucial for diabetes management.
• Existing methods may lack specificity or require complex sample preparation.
• Surface Plasmon Resonance (SPR) offers label-free detection capabilities.

Purpose of the Study:

• To develop a highly specific and sensitive SPR-based sensor for glucose detection.
• To immobilize D-galactose/D-glucose binding protein (GGBP) onto an SPR sensor surface.
• To evaluate the performance of the GGBP-modified SPR sensor for glucose concentration measurements.

Main Methods:

• Immobilization of GGBP onto the SPR sensor surface using a thiol coupling method.
• Conducting GGBP binding experiments to confirm protein attachment and functionality.
• Performing glucose concentration experiments using the GGBP-modified SPR sensor.

Main Results:

• Successful immobilization of GGBP on the SPR sensor.
• The SPR sensor exhibited good linearity, stability, and repeatability.
• Effective detection of glucose concentration in the range of 0.1-10 mg/dL.

Conclusions:

• The GGBP-modified SPR sensor provides a promising platform for high-precision, specific glucose detection.
• This technique has significant potential for advancements in glucose monitoring technologies.
• Further development could lead to improved diagnostic tools for metabolic disorders.