VS Stylus



In collaboration with LEPA-EPFL, we are pleased to offer the Soft Stylus Probe contact mode technique developed by Professor Hubert Girault and co-workers for constant distance SECM. The probe technology offers the following benefits:
  • Constant distance SECM: SECM imaging without major topographic artifacts. Ideal for tilted, corrugated and rough samples.
  • Soft contact with sample: with a contact force up to 1000 times less than hard probe technology, soft probes are ideal for studying biological samples in constant distance mode SECM.
  • Low cost: no need for additional hardware and special feedback control electronics to control vertical position of the probe with respect to the sample.
  • Faster measurements: no need to measure topography before SECM scans. Fast approach curve to find the sample surface.
  • Flexible and stable Probes: no risk of damaging the probe or sample during positioning and scanning.
  • Small tip-to-substrate distance is easily achieved, greatly enhancing contrast imaging and improving image resolution.
  • Easy Electrode Preparation: The tip of the electrodes can be cut after each use ensuring a clean surface. Replacement probes can be purchased.
  • Documents +

  • Specifications +


    Key Specifications
    Soft disposable electrode (approx. 100 scans per probe)
    Carbon paste as electrode material
    Typical electrode diameter 20 μm
    Up to 3 μm minimum tip sample distance control
    Material: PET with Parylene C coated Electrode Body
    Modes of operation: Constant Distance and Constant Height
    Probe Contact Pressure approx. 2.55 x 104 N m-2
  • Video +

    Watch video demonstrations of the VS Stylus