Welcome to the Nanoscience Instruments Store! To Return to the Main Website Click Here

PS-Hydrophobic Polystyrene QSensors (QSX 305), Box of 5


Inert packaging, limited shelf life

Box of 5 QSensors

Subtotal: $580.00
Quantity Per Item Price
1-4 $580.00
5-9 $551.00
10+ $522.00
SKU BL-QSX 305 Categories ,


QSensor QSX 305 PS-Hydrophobic Polystyrene

The QSensors are developed and produced to provide you with stable, reliable and reproducible data. Full performance is ensured through extensive quality controls and guaranteed for one-time use according to the recommendations.


Sensor Specifications
Typically ships within 8 weeks
Part Number QSX 305
Top coating material Polystyrene (PS)
Surface roughness < 1 nm RMS
Maximum temperature 90 °C
Pre-cleaning of sensor A new sensor might be contaminated with hydrocarbons and dust. Pre-cleaning the surface will give more reproducible QCM-D results.
Protocol For light cleaning, Deconex or ethanol wash + nitrogen gas drying can be used.

  1. Prepare a solution of 1% Deconex 11 (see www.borer.ch) in milliQ water.
  2. Immerse the sensor surfaces in the solution for 30 min at 30°C temperature.
  3. Rinse with milliQ water.
  4. Keep in milliQ water for at least 2 hours.
  5. Rinse with 99% ethanol.
  6. Dry with nitrogen gas.
Usage QSensors are intended for one-time use only.
Storage The sensor is delivered in inert atmosphere. Store in a cool, dry place out of light.
Shelf life Stable at least 18 months from package date in unopened package, see expiry date on package.
Chemical compatibility Do not expose to organic solvents. There is no guarantee that the coating will be stable under all experimental conditions.
Additional information UV/Ozone treatment of PS might result in new, unwanted chemical composition of the surface.

Please note that PS is very hydrophobic and that air bubbles are easily formed on the surface when working with water-based solutions. To reduce the risk of bubble formation, make sure to degas the solutions and to preheat them when working at temperatures above RT. It is also possible to pre-wet the sensor surfaces with ethanol and then replace ethanol with the water-based solution.


Additional information

Weight 0.2 oz
Dimensions 1.625 × 1.25 × 0.875 in