more contacts


Set of 5 pieces, SiO2 spheres, 900nm
€550 +
Аdd to cart

Product Description

Special colloidal probes with spherical particles calibrated by size are fixed on the very end of the needle tip.
SiO2 spheres are glued to High Resolution Silicon AFM Cantilevers FMG01 series specially designed for Force Modulation applications. Typical Resonant Frequency 60 kHz (guaranteed range 40-96kHz), Typical Force Constant 3 N/m (guaranteed range 1-5N/m). Cantilever has Au reflective side coating to increase laser signal.

The possibility to operate in liquid with nanometer spatial resolution makes the AFM a unique instrument
for the living cells studies. The accurate characterization of the mechanical properties of an individual
cell is particularly actual, that can serve as an indicator of the important chemical and biological
processes in the cell. The use of standard sharpened probes for the task is not always the best solution. A
typical threshold for the local pressure that keeps the living cell intact may be just a few kPa. It is substantially
lower than the pressure that locally acts on interacting of the sample with the standard probe. It
can be reached with a so-called bioprobe with the smooth spherical colloidal particle of submicron size
fi xed to the tip of the probe. If the size of the particle is calibrated, the opportunity to make quantitative
researches of mechanical properties of the living cell, as well as of polymers is provided.

Spherical granule is fixed to one of the two front faces, Fig.1b, of pyramidal tip and must pro-trude at a
distance b from the tip, Fig.1a. The bioprobe with the calibrated granule is able to take the load of
several μN. Available diameters of the spherical granules are 270, 650, 900 nm, dispersion - no more than 10%, material - SiO2.



General Features

Material Single Crystal Silicon, N-type, 0.01-0.025 Ohm-cm, Antimony doped
Chip size 3.4x1.6x0.3mm
Reflective side coating Au
Tip coating No

Special Features

Cantilever series Cantilever length, L±10µm Cantilever width, W±5µm Cantilever thickness, T±0.5µm Resonant frequency, kHz Force constant, N/m
min typical max min typical max
FMG01_BIO 225 32 2.5 40 60 96 1 3 5

successfully added to cart!

Continue shoppingGo to cart