KEU-XE


Price: On request
In Stock

Domains: aquaria zebra fish

This Experiment Unit is a device capable of providing an aquaria-like environment for investigating small aquatic Metazoa (e.g. Xenopus laevis or Zebra fish) or Algae.


The KEU-XE Experiment Unit is a device capable of providing an aquaria-like environment for investigating small aquatic Metazoa (e.g. Xenopus laevis or Zebra fish) or Algae. The KEU-XE features a feeding system relying on osmotic pump. Two walls of the device consist of permeable membranes to guarantee gas homeostasis. The fluidics consisting of a peristaltic pump (external) lined with a filter with active charcoal allows to regenerate the water. The water recirculation rate is tunable and led by the KEU-XE controller electronics following a predefined timeline. At the end of the experiment the XENOPUS Experiment Unit can be stowed at controlled temperatures. Samples can be kept alive until re-entry on Earth.

  • Fluidic systems: 1
  • Fluidic actuators: 0
  • Fluidic actuators type: PERISTALTIC PUMP (required externally)
  • Fluidic reservoirs: 1
  • Levels of Containment (LoC): 1
  • Fluidic System Volume: ask for information
  • Features: integrated OSMOTIC PUMP
  • Automatic control: YES
  • On-Board Electronic Controller: NO
  • Experiment Unit size: ≈ 85x48x57 mm
  • Experiment Unit mass: ≈ 150 grams (fully assembled)
  • Fits into: multiple KEU-XE fits into KIC-DLM (2 LoC)
  • Compatible Controller: KAB

So far, the KEU-XE Experiment Unit has been used to study Xenopous laevis tadpoles.

Each KEU-XE Experiment Unit (EU) backbone is made of semi-crystalline thermoplastic polymer with excellent mechanical and chemical resistance properties, biologically inert. The larger aquarium surfaces, respectively the rear and front wall, are made of a gas permeable membrane. The EU itself provides one level of containment (LoC) that is increased to three by using KIC-DLM containers class. Each aquarium is provided with an independent fluidic system.

On the whole, the fluidic system consists of a peristaltic pump, connecting silicon tubes, an aquarium, an osmotic pump, a filter acting as a waste control device and air permeable membranes for gas exchange. Basically, the force exerted by the peristaltic pump guarantees the fluid exchange within the aquarium; air permeable membranes guarantee gas homeostasis. An osmotic pump releases nutrients for Xenopous laevis tadpoles. A filtering device maintains water quality.



Qualified for:
Manned Flight Carrier (Soyuz) and Manned Flights – Use on ISS

  • 2008 XENOPUS PI: Eberhard Horn (Univ. of Ulm) – Martin Gabriel (Univ. of Göttingen)

Summary


Platform

International Space Station

Hardware

KEU-XE

Price estimation

On request

Timeframe estimation

On request