Simultaneous electrophysiological recording and self-powered biosignal monitoring using epidermal, nanotexturized, triboelectronic devices.

The fabrication of multifunctional epidermal electronic devices capable of efficiently reading electrophysiological signals and converting low-amplitude mechanical signals into electric outputs promises to pave the way towards the development of self-powered wearable sensors, smart consumer electronics, and human-machine interfaces. This article describes the scalable and cost-effective fabrication of epidermal, nanotexturized, triboelectronic devices (EnTDs). EnTDs can be conformably worn on the skin and efficiently monitor electrophysiological signals, temperature, and hydration levels.

Cellobiose/mannitol sugar permeability test in children in relation to jejunal morphometry.

The ability of the sugar permeability test to detect minor degrees of mucosal damage is uncertain, particularly in children. This paper reviews experience with the cellobiose/mannitol test at a referral centre of paediatric gastroenterology, relating the results of intestinal permeability to the jejunal morphometry. Two hundred patients underwent the cellobiose/mannitol test at the same time as jejunal biopsy; morphometric analysis of the biopsy specimens was performed by a computerized image analysis system.