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Bare Fiber Oxygen Microsensor for Customized Measurement Set-Ups
Implantable Oxygen Microsensor IMP-PSt7
This optical oxygen microsensor can be applied in various customized applications. The tiny probe has a tip size < 50 µm to 230 µm while the outer diameter ranges from 230 µm to 900 µm. The microsensor tip is not mounted into any additional housing. The bare glass fiber tip can be mounted to your own housings, steel tubes and micro respirometer chambers etc. The small outer diameter even allows insertion into implantable Venflon-tubes. Moreover the microsensor can be deployed in sealed containers to measure the oxygen content directly. The IMP-PSt7 has a measurement range of 0 – 100 % oxygen, with a limit of detection of 0.03 % O2.
- High spatial resolution (< 50 μm)
- High temporal resolution (t90 < 3 sec.)
- Integration into customized housings and set-ups
- No consumption of oxygen
- Measurement in headspace & liquids
Technical
| Specifications* | Gaseous & Dissolved O2 | Dissolved O2 |
|---|---|---|
| *data for microsensor TF = flat-broken sensor tip with 230 μm diameter **after two-point calibration as described in the manual | ||
| Measurement range | 0 – 100 % O2 0 – 1000 hPa | 0 – 45 mg/L 0 – 1400 µmol/L |
| Limit of detection | 0.03 % oxygen | 15 ppb |
| Resolution | ± 0.01 % O2 at 1 % O2 | ± 0.005 mg/L at 0.4 mg/L ± 0.025 mg/L at 9.06 mg/L |
| Accuracy at + 20 °C** | ± 0.05 % O2 or ± 3 % rel. | |
| Measurement temperature range | from 0 to + 50 °C | |
| Response time (t90) | < 3 sec. (gas) | < 10 sec. (liquid) |
| Properties | ||
| Compatibility | Aqueous solutions, ethanol, methanol | |
| No cross-sensitivity | pH 1 – 14 | |
| Cross-sensitivity | Organic solvents, such as acetone, toluene, chloroform or methylene chloride | |
| Sterilization procedure | Steam sterilization | |
| Cleaning procedure | 3 % H2O2 | |
| Calibration | Two-point calibration with oxygen-free environment (nitrogen, sodium sulfite) and air-saturated environment | |
| Storage stability | 60 months provided the sensor material is stored in the dark at room temperature | |
Related products
Resources
Publications
Revealing Oxygen Dependency of Bioluminescent TNT-Sensing E. coli K12 MG1655
In vitro evaluation of a novel oxygen-generating biomaterial for chronic rhinosinusitis therapy
A Portable Biosensor for 2,4-Dinitrotoluene Vapors
Perforated Microelectrode Arrays Optimize Oxygen Availability and Signal-to-Noise Ratio in Brain Slice Recordings
Oxygen limitation of thermal tolerance defined by cardiac and ventilatory performance in spider crab, Maja squinado
Temperature-dependent oxygen extraction from the ventilatory current and the costs of ventilation in the cephalopod Sepia officinalis
Legume embryos develop in a hypoxic environment
Temperature-dependent endogenous oxygen concentration regulates microsomal oleate desaturase in developing sunflower seeds
FAQs
Can I integrate an oxygen microsensor into a catheter?
Can I measure inside a tissue with fiber optic microsensors?
Can I use the Manual Micromanipulator with an implantable microsensor as well, or is it only for needle-type microsensors?
How can I prevent oxygen or pH microsensors from breaking when measuring profiles across tissue?
How do I import data into excel from a text file containing measurement data?
How do I use the oxygen microsensor for measurement in ice?
How do I verify whether the oxygen sensor is giving correct readings (performance proof)?
How does an oxygen sensor work?
How does salinity affect the oxygen measurement?
How does temperature affect the oxygen measurement?
How often will I have to exchange the microsensor?
I can see that about 1 mm of the tapered sensor tip of an oxygen microsensor is coated with material. Is all of this coating sensitive to oxygen and where exactly do I measure?
The needle tip of the microsensor is vibrating or not moving smoothly when I try to insert it in the sample with the Manual Micromanipulator. What can I do?
The Stern-Volmer-equation
What are the exact dimensions / diameters of Implantable O2 and pH Microsensors?
What is the correct way for handling an oxygen or pH microsensor?
What is the difference between tapered and flat-broken microsensor tips?
What is the time of delivery?
Which substances can interfere with the optical O2, pH and CO2 measurements?
Manuals
Brochures
Software
PreSens Oxygen Calculator version 3.1.1 - Windows 7/8/10