CP-FM-BSG

Colloidal AFM probe with borosilicate-glass microsphere on NANOSENSORS™ TL-FM AFM cantilever

Microsphere
Material: Borosilicate Glass
Diameter: 2.5-20 µm
AFM Cantilever
Force constant: 2.8 N/m
Res. Frequency: 75 kHz
Length: 225 µm
Select microsphere diameter:

The CP-FM-BSG colloidal probe features a spherical borosilicate glass (BSG) microparticle attached by a polymer adhesive to the free end of a NANOSENSORS™ TL-FM tipless AFM cantilever.

The microspheres are made of borosilicate glass with density 2.5 to 2.55 g/cm3. They offer good tolerance to chemicals and solvents as well as high mechanical and thermal stability. They are available in 4 different diameter ranges:

  • 0 = 2.5 µm ± 10%
  • A = 5 µm ± 10%
  • B = 10 µm ± 10%
  • C = 20 µm ± 10%

Please choose 0, A, B or C when ordering!

Due to the different microsphere masses, the colloidal probe resonance frequency may be lower than the specified value for the base tipless AFM cantilever.

The NANOSENSORS™ TL-FM AFM cantilevers are designed for special applications where no AFM tip at the end of the AFM cantilever is needed. They are highly doped to dissipate static charge and chemically inert to most common solvents. The holder chip features alignment grooves on the back side which guarantee precise alignment of the AFM cantilever position when used together with the NANOSENSORS™ Alignment chip.

The colloidal probe technique uses single colloids attached to AFM cantilevers for force measurements and offers possibilities for better understanding of many fundamental interactions such as adhesion phenomena, particle-surface interactions, mechanical properties, suspensions, hydrodynamics and boundary slip.