ac-SECM/SECM470 Alternative Current Scanning Electrochemical Microscope System

Provides information about the surface reactivity of a sample in solution.

SECM is one of the fastest growing of the scanning probe electrochemistry techniques. Its many application areas include the study of surface modification, monitoring of biological activity and imaging immobilized enzymes. The 3300 bi-potentiostat can make ultra-low current, low noise measurements simultaneously at the tip and substrate to extend the instruments ability to address specialist applications in surface science and the study of living cells.

The ac-SECM is a new technique that has the capability to measure surface phenomena without the presence of a mediator. This feature allows the SECM technique to be used in the field of corrosion science.

The SECM technique can be combined with the OSP470 module or the ic-SECM470 module to allow the technique to make both constant height and constant distance measurements.

Materials

• Investigation of soft biological material
• Design of functional materials
• Fabricated surfaces for sensors
• Characterisation of combinatorial libraries for fuel cell application

Fundamentals

• Corrosion mechanisms
• Ion flus through pores
• Investigating cellular activity of living cells
• SECM imaging in the absence of a redox active species

Corrosion

• Corrosion activity of polymer defects
• Surface phenomena in the absence of a mediator
• Characterisation of Aluminium alloy surfaces