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NO Microsensor

Measure minute concentrations of NO

Nitric oxide plays an important role in many biological processes; however, natural concentrations are often in the nanomolar range. The Unisense NO microsensor is characterized by a very high sensitivity, which enables you to measure minute concentrations of NO. Combined with a fast response time the Unisense NO microsensor is an excellent research tool for a broad range of tasks.

The sensor can be used equally well for measurements in tissue, air, or liquid, and is applied in a broad variety of research fields where non-destructive, fast and accurate measurements are required. The NO microsensor is designed for research applications within:

  • Environmental sciences
  • Biomedical sciences
  • Biotechnology
  • Wastewater

Microsensor technology:

The NO micro- and minisensors are Clark-type sensors measuring the external NO partial pressure. The working principle of the sensor is based on diffusion of NO through a silicone membrane to an NO oxidizing anode, which is polarized against an internal counter cathode. The resulting sensor signal is in the pA range and is measured by a high quality picoammeter e.g. the Unisense Microsensor Multimeter.
Compared to other standard NO sensors the Unisense NO microsensor has an extremely low consumption of max. 935 pmol/hour corresponding to 0,1 %/hour in a 1 mL 0,1uM NO sample.

Ordering Information

Standard Glass Sensor Outside tip diameter
NO-15 15-20 µm
NO-50 40-60 µm
NO-100 90-110 µm
NO-500 400-600 µm
NO-MR 400-600 µm
NO-NP 1,6 x 40 mm - needle sensor for piercing
Find the complete list of nitric oxide microsensor specifications, including warranty and expected life time, below and possible microsensor customizations and adaptations under Related Products found to the right.

View NO Microsensor Specifications

Technical information

View sensor specifications

Related products

Sensor Customization

Schreiber, Frank et al (2008), Nitric oxide microsensor for high spatial resolution measurements in biofilms and sediments, Analytical Chemistry, 1152 - 1158, vol. 80 Read abstract

Aamand, Rasmus et al (2009), Generation of nitric oxide from nitrite by carbonic anhydrase: a possible link between metabolic activity and vasodilation, AJP: Heart and Circulatory Physiology, H2068 - H2074, vol. 297 Read abstract

Ettwig, Katharina F. et al (2010), Nitrite-driven anaerobic methane oxidation by oxygenic bacteria, Nature, 543 - 548, vol. 464 Read abstract

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