Abstract Recently, metallic dry EEG electrodes have been introduced to overcome the limitation of wet electrodes, as conductive gel used causes skin irritation and dries out over time. However, metal a high weight stiff structure that limits them from wearable application. In this work, we developed textile-based electrode (textrode) silver-plated polyamide loop fabric washable up 100 cycles. T...

electrochemical impedance spectroscopy (eis) is a suitable and powerful diagnostic testing method for fuel cells (fcs) since it is non-destructive and provides useful information about fc performance and its components. in this study, for the first time, a 500w cascade type 4 cells stack with integrated humidifier, water separator and internal manifolds was designed, fabricated and tested. the ...

The electrocardiogram (ECG) is sensitive to human body motions when it measured with dry metal electrodes. A common hypothesis in previous literature dealing these subjects postulate that this due the skin-electrode impedance variability. This paper aims verify by investigating origin of noise ECG signal and finding suitable solutions reduce disturbance. For reason, experiments are proposed her...

Electrically interfacing the skin for monitoring personal health condition is the basis of skin-contact electrophysiology. In the clinical practice the use of stiff and bulky pregelled or dry electrodes, in contrast to the soft body tissues, imposes severe restrictions to user comfort and mobility while limiting clinical applications. Here, in this work dry, unperceivable temporary tattoo elect...

BACKGROUND Even though progress has been made, the detection of melanoma still poses a challenge. In light of this situation, the Nevisense electrical impedance spectroscopy (EIS) system (SciBase AB, Stockholm, Sweden) was designed and shown to have the potential to be used as an adjunct diagnostic tool for melanoma detection. OBJECTIVES To assess the effectiveness and safety of the Nevisense...

Two closely-related electro-dermal phenomena constitute the so-called " psycho-galvanic reflex ". These are (a) a decrease in the electrical resistance of the skin, and (b) a change in the skin electromotive force in response to a wide variety of stimuli. Fere (1888) connected two electrodes on the forearm of a subject in series with a weak source of electricity and a galvanometer. He observed ...

BACKGROUND With advances in technology and increasing demand, wearable biosignal monitoring is developing and new applications are emerging. One of the main challenges facing the widespread use of wearable monitoring systems is the motion artifact. The sources of the motion artifact lie in the skin-electrode interface. Reducing the motion and deformation at this interface should have positive e...

in a study of 310 patients with suspected dermatophytic lesions, 110 cases of dermatophytosis, were diagnosed by direct smear in 10% koh and culture by two methods, skin stripping with use of adhesive tape and scrapping with scalpel blade conventional technique). out of 65 positive cultures, in 33 cases, growth was obtained by methods (scraping and stripping), 23 by the conventional technique a...

T HE INCREASE of pulse wave velocity with age is well established1-3 and reflects a loss of the elastic properties of the arterial wall.4 The age trends of pulse wave velocity vary for different arteries.2 8 In view of early localization of atherosclerotic changes in the abdominal aorta, we have compared age trends of the aortic pulse wave velocity, measured by impedance plethysmography in norm...

In electroencephalography (EEG) source analysis, a primary current density generated by the neural activity of the brain is reconstructed from external electrode voltage measurements. This paper focuses on accurate and effective simulations of EEG through the complete electrode model (CEM). The CEM allows for the incorporation of the electrode size, shape and effective contact impedance into th...