Technical articles

Project PAPERLIGHT: Atmospheric Cold Plasma for Separating Mold-Induced Blocking in Historical Paper Documents. New Approaches for Preserving Our Written Cultural Heritage. 

How cold plasma functionalizes 3D-printed PCL scaffolds for tissue engineering.

The combination of additive manufacturing and plasma technology opens up new avenues in regenerative medicine and tissue engineering. A particularly innovative approach is the cold plasma surface modification of 3D-printed polycaprolactone (PCL) scaffolds, as is currently being researched at the Cabral Laboratory of the University of Otago (New Zealand).

New study on nanoparticle emission in plasma jets. A research team from relyon plasma GmbH and the Ostbayerische Technische Hochschule (OTH) Regensburg has investigated the emission of nanoparticles from atmospheric pressure plasma jets (APPJ) using the PlasmaBrush PB3 integration with four different nozzles.

To make it easier for a system developer to work with MediPlas, relyon plasma provides the MediPlas evaluation kit. This kit is primarily intended for research laboratories, standardization institutes, material testing laboratories, didactics/training, PAW manufacturers and many others. With this plug-and-play board, a plasma can be created to generate gases with a variable composition of reactive oxygen and nitrogen species (RONS).

Oxidation during plasma cleaning of metal – Publication in the April 2025 issue of the trade journal Galvanotechnik Pitch black instead of shiny silver – many metallic surfaces can oxidise undesirably when cleaned with an air-driven atmospheric plasma. Ways of cleaning easily oxidising surfaces with plasma without this effect are presented in detail in the […]

relyon plasma article ‘Hybrid Dielectric Barrier Discharge Reactor’ has been named Editor’s Choice in the journal Plasma (MDPI)!

How long does a plasma treatment last? This depends heavily on the material, the plasma device used and other influencing factors.

Prof. Dr. Bender examines the interaction of surface roughness and surface energy with polyethylene and how better bonding with atmospheric pressure plasma can be achieved.

Over the last few weeks, the Versuchs- und Lehranstalt für Brauerei in Berlin (VLB) e.V. has carried out extensive tests with the MediPlas RONS generator to reduce live cell counts. The experiments showed that the MediPlas system achieved a reduction in live cell counts of more than 6 log levels after just 5 minutes.

Cold atmospheric pressure plasmas (ADP) are widely used for the conditioning of polymer surfaces; prolonged interaction leads to changes in material properties in the form of erosion.

The study investigates the generation of ozone using a plasma reactor based on a novel hybrid dielectric barrier discharge (HDBD). Ozone generation was investigated for a variety of parameters.

Piezoeletric cold atmospheric plasma induces apoptosis and autophagy in human hepatocellular carcinoma cells through blocking glycolysis and AKT/mTOR/HIF-1α pathway

The study investigated the effects of cold atmospheric plasma (CAP) on the shelf life of pork. Different treatment times were tested for the pork samples to evaluate their effects on the natural microbiota and the quality of the meat.

The publication deals with the evaluation of the UV emission of a pulsed atmospheric plasma jet, using the example of the PG-31 plasma generator, which is part of the PlasmaBrush PB3 atmospheric plasma system.

The chemistry of the plasma discharge is influenced by numerous parameters. The MediPlas system allows for customizing certain parameters, thus optimizing the output gas.

This article describes the operation of the MediPlas Reactor. Depending on the chosen input gas, the MediPlas Reactor converts it into a mixture of ozone, nitrogen oxide components, nitric acid, and peroxides.

When using PAA® technology, the ignited plasma bridge can be used for electrical grounding of conductive substrates.

The objective of this study was to investigate the influences of non-thermal plasma on the shear bond strength of PAEKs to composite resin.

In this study, the effect of the application of atmospheric pressure plasma on the strength of the bonded joint of galvanised and non-galvanised steels was investigated.

In their study, Jungbauer et al. investigated the use of the cold-atmospheric plasma device piezobrush® PZ3 against periodontal and peri-implant diseases.

Summary of an interesting publication on basic research on the possible use of plasma as an adjuvant therapy for head and neck carcinomas.

Summary of an interesting publication on basic research with our industrial product piezobrush® PZ2 for possible use in the medical field: This study investigates the efficacy of cold atmospheric plasma treatment with the piezobrush® PZ2 in oncotherapy for human colon and lung cancer.

Summary of an interesting publication on basic research on the possible use of plasma in dermatology with exemplary application of the piezobrush® PZ3. The applications of cold atmospheric plasma (KAP) have expanded in plasma medicine. As an emerging branch, plasma dermatology takes advantage of the beneficial complexity of plasma components, their technical versatility and practical feasibility.

Tinsley and Harris used computer-controlled localised plasma treatment with the piezobrush® PZ2-i to selectively modify the chemical behaviour of silicone and PET to produce pneumatic soft actuators.

In this study, the effect of sandblasting and cold atmospheric plasma on the shear bond strength of adhesive resin cement to zirconia was investigated. Both methods showed a positive effect of the shear bond strength. The best results could be achieved by combining the two methods.

Takao et al. investigate in vivo and in vitro the effects of plasma treatment on the bioactivity of zirconia/alumina nanocomposites (NANOZR) used as implant materials.

A visualization of activated area on polymers is done with test ink to evaluate atmospheric pressure plasma jets (APPJ). The shrinkage characteristics of the test ink are collected using activation image recording (AIR).

The work from Tsujita et al. investigates the effect of surface modification of titanium implants on bone formation. Especially cold atmospheric plasma treatment shows promising results.

The group of A. Stratakos investigated the inactivation of the foodborne pathogens Listeria monocytogenes and Salmonella on stainless steel after a treatment with cold plasma.

In the casestudy Dynamic Contact Angle Measuring the effect of plasma treatment on the dynamic contact angle and thus the wetting was determined.

Dariusz Korezc explains in the whitepaper Multi-Device Piezoelectric Direct Discharge for Large AreaPlasma Treatment

The piezobrush® PZ3, powered by the CeraPlasTM F-type piezoelectric transformer (PT), is used to generate an atmosphere with a high concentration of chemically active species and ions.

Matsuomo et al. investigated plasma and UV-light surface modification of titanium surfaces by using quartz crystal microbalance system

One of the most common applications of cold plasma is the activation of polyolefines, such as polypropylene (PP) prior to an adhesive process.

The piezoelectric direct discharge (PDD) is a comparatively new type of atmospheric pressure gaseous discharge for production of cold plasma.

The subject of this whitepaper is the atmospheric pressure plasma jet piezobrush® PZ3, developed by relyon plasma GmbH in Regensburg

Cold atmospheric plasma (CAP), the core technology of plasma medicine, is attracting tremendous attention due to its ability and versatility to manipulate various types of cells, including stem cells.

Enhanced Osseointegration and Bio-Decontamination of Nanostructured Titanium based on Non-Thermal Atmospheric Pressure Plasma.

In the following report the service life of the plasmabrush® PB3 A250 nozzle was examined. Flame pattern and temperature hardly change.

With low-energy surfaces such as silicone, polypropylene or Teflon, a strong increase in surface energy is achieved after surface activation with the piezobrush PZ2 handheld plasma device.

The article describes the development of a method for deposition of low‐density polyethylene (LDPE) on rotating three‐dimensional aluminum alloy substrates is presented.

Atmospheric pressure plasma can be used in a variety of ways to achieve good adhesion and improve bondings. This makes the process an attractive alternative to chemical bonding agents and solvents.

Without the application of plasma technologies, many industrial processes cannot be realized, or can only be realized at great expense. That is why Relyon Plasma has developed a concept to automate the handling of plasma generators – with robots of Kawasaki.

Scientists of Osaka Dental University researched on the effect of plasma treatment of titanium surface on biocompatibility. The entire test series was performed with the piezobrush PZ2 from relyon plasma.

Industrial parts cleaning with plasma is an environmentally friendly and inline-capable cleaning technology that ensures high quality in downstream processes.

We are really proud that the expert for surface treatment Dr. Richard Suchentrunk has published an interesting article about relyon plasma in the magazine Galvanotechnik.

This paper examines the probability of failure of the PS2000OEM power source in the event of a short-term power failure of the power grid.

How can you prepare glass for digital printing to create a durable product? We provide a brief overview of pre-treatment for glas printing.

Roding Automobile GmbH is an internationally active technology company in the field of lightweight construction and electromobility. Read how they use plasmatechnology.

Paint and clean with plasma! With a special pulse technique even coarse dirt or thicker layers can be removed.

Surface energy  Determination of surface energy by means of test inks and contact angle measurement, enhancement through plasma treatment Wettability is of major importance for all kinds of surface treatments like printing, varnishing and gluing. It describes the behaviour of liquids on solid surfaces which is dependent on the surface tension of the liquid and […]

If plasma activation is used for composite materials during the production of beverage and food packaging,
very high process speeds will be required.

Many thermoplastic materials are very difficult to glue. Activation with atmospheric plasma significantly increases the adhesive force of the joint in just one process step.

Using a risk assessment methodology applied on empirical data and failure scenarios, we have been able to prove that our plasma systems reach a high performance level and safety. Using the modern approach of redundant safety circuits critical hazard can be avoided efficiently.

The reduction of metal surfaces with atmospheric plasma processes is suitable for a variety of metals and alloys.

Plastics are usually characterized by inert surfaces with surface energies between 20 and 40 mN/m. In order to wet a surface, however, the surface energy of the polymer must exceed the one of the paint or the adhesive. This condition can be achieved through a plasma treatment of the surface and is called “activation“ in plasma technology.

Cold atmospheric pressure plasmas are now being widely used for many types of surface disinfection and sterilization. Despite the wide area of applications and high demand for new effective treatments, the understanding of interactions of plasmas with living cells and tissue remains rather limited.

The high temperatures which are reached in most plasma applications make many users wonder about process safety, especially when highly sensitive materials are treated. This article addresses open questions concerning temperature and heat conduction during plasma applications and cites critical examples which substantiate the suitability of plasma for temperature-critical processes.

Our Plasmabrush® system, particularly the PS2000 high voltage unit, supplies meaningful digital process data from which valuable process information can be gained based on our years of expertise. In close collaboration with you, we define the operating points for your production steps and provide a working area designed to achieve the desired results.

The Plasmadust technology of relyon plasma enables the gentle deposition of powdery plastics on the metal.

Is the surface treatment of electronic devices with atmospheric pressure plasma possible? We have started a series of tests.

Plasma technology in dentistry: Devices with PDD® technology can be used particularly efficiently in medical applications and especially in dentistry.

We have developed a wear-free plasma source, the piezobrush® PZ2, for the plasma functionalization and disinfection of implants. Plastverarbeiter.de

In orthopedics PEEK implants are standard. Meanwhile, dental implants are made increasingly from the high-performance plastic.

Plasma technology and soldering: Plasma technology keeps assembly production free from harmful chemicals when applying flux.

For the functionalization of PEEK implants, we have developed a transportable and easy-to-use plasma device (piezobrush® PZ2).