Ionovation Compact

The bilayer technique
is a method to record electrical currents at a single channel level. The bilayer forms a gigaohm resistance between two saline-buffer filled chambers.  After incorporation of poreforming proteins (ion channels, solute channels, carriers and pumps) protein mediated currents or membranepotentials can be recorded at high resolution.

 

Methods for insertion of membrane proteins into the bilayer:

  • Fusion of membrane vesicles or patches from virtually any membrane preparation
  • Fusion of proteoliposomes; from single channels to channel populations without any background activities
  • Direct incorporation; bacterial toxins like alpha-hemolysin from staphylococcus aureus are simply added to one compartment
     

more infomation

A sweeping example of use

In membrane biology, electrophysiology is one of the central investigation tools. In the past the standard technological approach has primarily consisted of the various alterations of patch clamping of membranes and cells. However, certain limitations with respect to flexibility, throughput, userfriendliness, and information content have become obvious over the years.

 

Now there is an alternative to conventional methods: The Ionovation Compact - a highly flexible bench top system based on the bilayer technique. Ionovation Compact opens up a new dimension; the study of membrane channels and transporters from both animal and plant cells and their organelles. No more limitation to suitable cell lines. The response of channel forming proteins to any effector can be investigated, making the Ionovation Compact a powerful tool in pharmacological research, drug discovery, and in academia.

 

Relevant applications include

  • Membrane transport processes
  • Searching for active drug substances
  • Drug safety
  • Signal transduction
  • Disease related membrane permeabilisation e.g. parkinson and alzheimer’s disease

 

The Ionovation Compact addresses the full range from single to multiple channels

  • Using purified proteins:
    • Unique channel population investigated at a time.
    • No background activities.
    • Both sides of the channel(s) are easily accessible
  • Using membrane preparations:
    • Easy approach to whole-cell like investigations
    • Both sides of the channel(s) are easily accessible
  • Even subcellular compartments / membrane
    fragments can be “bilayered”

Ionovation Compact and HEKA - A strong team -

 

In co-operation with HEKA EPC 10 and Patchmaster Software Ionovation Compact is a highly flexible and fully controlled bench-top device. It is particularly suited for academic and industrial research focussing on high information content applications.

 

Ionovation Compact allows:

  • Precise mesurement of ion channel, transportzer or pore activity.
  • Complete control through user friendly software.
  • User defined experiment workflow with predefined protocols.
  • Fully automated instrument operation, i.e. bilayer production and validation, capacitance control of bilayer integrity, perfusion system for both membrane sides.
  • Visual control of the bilayer possible.
  • Stable low noise Ag/AgCl electrodes with salt bridges recording currents in the range from pA to several nA.

Patchmaster - A powerful software for acquisation and analysis of electrophysical data and highly flexible tool for automation and standardization of experiments

© copyright by Ionovation GmbH, Osnabrück, 2004-2008