LunaLEC AB started

posted Aug 21, 2012, 11:11 PM by Nathaniel Robinson   [ updated Aug 30, 2012, 2:45 AM ]

The commercialization of light-emitting electrochemical cells (LECs) has progressed to the point where we are ready to take in external investors, and have therefore spun-off LunaLEC AB.

LunaLEC AB is  led by Patric Stafshede (  

Update: News, etc. for LunaLEC can be found on our google plus page: +LunaLEC

Electroosmotic pump patent approved in Sweden

posted Nov 1, 2011, 11:34 AM by Nathaniel Robinson

Lunavation has been granted a Swedish patent (SE 534 488 C2) for an electroosmotic pump invented at Linköping University.

The pump, which has a wide range of applications including point-of-care medical diagnostics and microfluidic chemical and biological systems, has several distinct advantages:
  • Wide voltage range - the pump has been tested to work with simple DC voltages ranging from below 2 V to over 15o V.  This means that the pump can be operated by batteries in small, portable devices without requiring sophisticated electronics to drive it.
  • Easily manufactured - the materials in the pump are solution processable, meaning that devices can be made with relatively inexpensive processes such as inkjet printing.
  • No electrolysis - the device eliminates or minimizes the electrolysis of solvent, meaning that the production of gas bubbles or acid, base and peroxide are avoided.  This allows the device to safely handle sensitive chemical and biological samples such as blood or proteins.
We are currently evaluating potential commercial partners to help us develop this technology. Please do not hesitate to contact us if you have an interesting application.

Graphene LEC Patent approved by PRV in Sweden

posted Jun 22, 2011, 1:27 AM by   [ updated Nov 1, 2011, 11:16 AM by Nathaniel Robinson ]

The Lunavation patent "Graphene electrodes in light-emitting electrochemical cells" has been officially approved by the Swedish Patent- and Registration Office PRV (Patent- och registreringsverket).
More information:
The official note can also be found in the attachment below.

Flexible metal-free LECs demonstrated

posted Feb 17, 2011, 5:51 AM by Nathaniel Robinson

In a recent article published in ACS Nano, we demonstrate that the metal-free LEC recently developed can be fabricated on flexible plastic substrate.  Although not entirely unexpected, this result shows that LECs have applications in a wide range of situations beyond the reach of traditional lighting.

In the picture to the right, such a device is shown operating while wrapped around a test tube filled with a solution of nanoparticles.

Electrolysis-free pumps for lab-on-a-chip applications

posted Nov 29, 2010, 12:37 PM by Nathaniel Robinson   [ updated Apr 13, 2011, 5:06 AM ]

We have presented a new electroosmotic pump / electrokinetic system for use in lab-on-a-chip (microfluidic and nanofluidic) applications.  The new pump features electrochemically active electrodes that eliminate electrolysis of the solvent (e.g. water).  This, in turn, alleviates many of the disadvantages of electroosmotic pumps in microfluidic systems, e.g. that they generate gas bubbles and change the solution's pH.  Additionally, the materials we use are solution processable, meaning that they are compatible with e.g. inkjet printing, allowing for inexpensive and simple integration with existing manufacturing processes.

Update: These results can be found in an article in the journal Electrophoresis.

P. G. Erlandsson and N. D. Robinson, Electrolysis-Reducing Electrodes for Electrokinetic Devices. Electrophoresis 32 pp. 784-790 (2011)

For more information, contact Nathaniel Robinson.

Metal-free light-emission demonstrated

posted Feb 9, 2010, 9:58 AM by Nathaniel Robinson   [ updated Apr 26, 2011, 3:45 AM ]

In a publication in ACS Nano, we have shown how light-emitting compenents called polymer LECs can be made without any metal electrode.  In this case we used graphene as a cathode, which allowed us to use the printable polymer PEDOT:PSS as the anode.  The mobile ions in the LEC allow a variety of materials to be used as these electrodes, in sharp contrast to OLED technology.

More information is available in the original article, or via media reports.  A few are listed below.

Image commissioned from

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