The science

We have built our research on the shoulders of fundamental papers such as Dry-contact and noncontact biopotential electrodes: Methodological review (2010) by Chi YM, Jung TP, Cauwenberghs G.

We recommend this paper as it sets the scene for the work we have done, both with the ETH and in-house.

Our academic publications

Clinical gold-standard signal quality

In our academic publication Skin conformal polymer electrodes for clinical ECG and EEG recordings (2018) we were able to show how our dry electrodes provide signal quality on par with, or better than, the clinical gold standard of gel electrodes. We also show that we outperform all competing products in terms of motion artifact reduction, and work well in non-lab conditions such as under water.

We have since iterated further on this technology and no longer use the same characteristics for our electrodes, but we maintain the same performance.

We have more academic papers in review, and hold three patents.

Comparative impedance measurements
Comparative signal quality measurements
EMG activity of a pinch grasp movement recorded at the forearm with
conventional hydrogel electrodes and IDUN electrodes.

3rd party validation

Our electrodes are used in research

Tecnalia, of the Wearplex consortium, in collaboration with Aalborg University of Denmark, have performed extensive comparative work of IDUN’s electrodes with standard hydrogel electrodes, with the use case of gesture detection in the forearm area. They have shown we are comparable in signal clarity and strength, and this without need for disposable electrodes or gel application.

Our electrodes are also seeing use in further research due to their comfort levels and ability to work in non-lab conditions. We are co-authoring a paper with the Heart Clinic of Hirslanden Hospital Zurich, entitled Heart Rate and Heart Rate Variability in Divers.

Sleep Loop, of the Mobile Health Systems Lab of ETH Zurich has partnered with the University Hospital of Zurich, for a study entitled Evaluation of novel dry electrodes to monitor brain activity during sleep at home. Both papers are currently in review and should be published in the coming months.

Comparative signal quality measurements

The future of EEG

Innovation in wearable technology

The recent publication Dry-contact electrode ear-EEG (2018) by Kappel SL, et al. is foundational in proving the validity of EEG measurements via in-ear electrodes. It shows that in-ear electrodes are capable of comparable EEG signal recording relative to scalp measurements.

Building on this research, as well as extensive in-house testing, we have developed further improvements on the technology. Much like the DryodeTM was significantly better than competing products, we bring equivalently disruptive in-ear EEG electrodes to the market, targeted at wearable technology for the every-day consumer.

Our form factors

All biopotentials

The form factors we have developed allow us to measure all kinds of biopotentials to clinical standards and provide us the full spectrum of measurements possible. We can perform Electroencephalography (EEG), Electrocardiography (ECG) and Electromyography (EMG) measurements.

All body locations

We developed form factors suitable for all relevant body locations. The in-ear is suited for EEG and ECG measurements, the scalp one is suited for EEG measurements where hair is dense, and the DryodeTM is suited for EEG, ECG and EMG measurements on the rest of the skin areas where hair is less dense.

Unobtrusive and integrates easily

We have a “forgettables” philosophy, having created products you forget you are wearing. Our form factors allow for maximum comfort and wearability, and we have integrated them into existing platforms such as earbuds or headsets.

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