The NANOSENSORS uniqprobe combines the well-known features of the other NANOSENSORS AFM probe series such as high application versatility and compatibility with most commercial SPMs with the additional advantage of a strongly reduced dispersion of force constant and resonance frequency. The unsurpassed uniformity of the mechanical characteristics of the uniqprobe series is particularly important for applications, where a large number of probes with known and near identical force constants or resonance frequencies are needed. The sensors of the uniqprobe series are especially adapted for molecular biology, biophysics and quantitative nano-mechanical studies.
The reflex gold coating deposited on the detector side of the cantilever covers only the free end above where the tip is located. Main advantages of the uniqprobe coating are considerably less cantilever bending and reduced drift particularly for measurements in liquid environments.
NANOSENORS qp-SCONT AFM probes are designed for contact mode AFM imaging in air or liquid environments. The SCONT type features a very low force constant offering the possibility of contact mode measurements on soft biological materials with high sensitivity.
The probe offers unique features:
- small dispersion of force constant and resonance frequency
- typical tip height 7µm
- typical tip radius of curvature smaller than 10nm
- stress free cantilevers with considerably less bending
- tip and cantilevers are made of a quartz-like material
- reduced drift for applications in liquid environments
- tip repositioning accuracy of better than ± 8 µm (in combination with Alignment Chip)
- chemically inert
Special handling information for NANOSENSORS™ uniqprobes
Due to their unique geometry the tips of the uniqprobes are more susceptible to tip damage by electrostatic discharge (ESD) than other Silicon-SPM-Probes.
Electric fields near the probe chip may lead to field evaporation which can blunt the tip apex of the probe tip. Therefore the NANOSENSORS™ uniqprobes are shipped in specially designed ESD-safe chip carriers.
NANOSENSORS™ recommends to their customers to take appropriate precautions to avoid tip damage due to electrostatic discharge when handling the probes. This can for example be done by using anti-electrostatic mats, wrist bands and tweezers.