TDK Electronics · TDK Europe

CeraPlas for decontamination


TDK CeraPlas®, a cold plasma generator, can be used to develop devices that can inactivate viruses on everyday objects.  Inactivation of the SARS CoV-2 virus requires a logarithmic reduction rate greater than LOG 4*. A technology that has been little used recently to meet these requirements is atmospheric pressure plasma, which generates reactive ionized gases to inactivate the viruses. TDK now offers an Explore Kit for developers, who want to realize their own customized devices based on this decontamination technology.


Explore Kit

Explore Kit App

Detection of decontamination

 Decontamination pic

The strong local electric fields generated when a plasma is ignited ionize the surrounding air and reactive oxygen is formed. In a confined volume, this reactive oxygen has an inactivating effect on viruses.

In a series of experiments conducted in cooperation with the Medical University of Graz, Diagnostic and Research Center for Molecular BioMedicine, the effect was proven. The investigation was concerned with the question of whether viruses on the surface of protective masks made of cotton, for example, or on an FFP3 mask can be inactivated by the method described. The experimental set-up of the investigations was designed as follows:

  1. preparation of the viral load;
  2. application of the viral load to the samples;
  3. determination of the active virus amount by PCR method**;
  4. placement of the samples into the treatment chamber;
  5. deactivation by reactive oxygen;
  6. collection of the samples and determination of the active virus amount by PCR method.

Replicates and positive and negative controls are used to verify the results. The results are shown in the following figure.

CeraPlas Explore Kit

The CeraPlas technology enables solutions for virus decontamination. The basic components required for this, such as the plasma generator and control unit, are now available in an Explore Kit for developers.

The implementation of decontamination is relatively simple. A lockable volume for treatment and the plasma generator with its control unit are the basic building blocks to be able to set up a first functioning inactivation unit. To ensure operation with reproducible results, a locking mechanism that prevents premature opening is helpful. The active oxygen is either degraded by itself over an appropriate waiting period or accelerated by the use of catalysts such as activated carbon or manganese dioxide.

The new Explore Kit for testing is characterized by its user-friendly handling. In addition to the simple procedure and easy accessibility in a closed compartment, the duration, scalability and dry process are well suited for decontamination.

For a treatment volume of about 3.5 liters, a single plasma source is well suited for inactivation. A larger volume requires appropriate scaling of the plasma generators.

Through the Explore Kit, TDK can offer a quick and easy development start to interested partners who want to realize their own customized devices.


Get in touch to co-create with us

Are you interested in the CeraPlas Explore Kit and becoming a TDK business partner?

Please briefly describe your application and fullfill the contact form. Our cold plasma experts will get in contact with you. 

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