title: Electrolyte-Sensing Transistor Decals Enabled by Ultrathin Microbial Nanocellulose.
abstract: We report an ultra-thin electronic decal that can simultaneously collect, transmit and interrogate a bio-fluid. The described technology effectively integrates a thin-film organic electrochemical transistor (sensing component) with an ultrathin microbial nanocellulose wicking membrane (sample handling component). As far as we are aware, OECTs have not been integrated in thin, permeable membrane substrates for epidermal electronics. The design of the biocompatible decal allows for the physical isolation of the electronics from the human body while enabling efficient bio-fluid delivery to the transistor via vertical wicking. High currents and ON-OFF ratios were achieved, with sensitivity as low as 1 mg·L-1.
authors.affiliation: Center for Bio/Molecular Science and Engineering, U.S. Naval Research Laboratory, 4555 Overlook Ave. SW, Washington D.C. 20375, USA.
authors.forename: Jonathan D
authors.initials: JD
authors.lastname: Yuen
authors.affiliation: Center for Bio/Molecular Science and Engineering, U.S. Naval Research Laboratory, 4555 Overlook Ave. SW, Washington D.C. 20375, USA.
authors.forename: Scott A
authors.initials: SA
authors.lastname: Walper
authors.affiliation: Center for Bio/Molecular Science and Engineering, U.S. Naval Research Laboratory, 4555 Overlook Ave. SW, Washington D.C. 20375, USA.
authors.forename: Brian J
authors.initials: BJ
authors.lastname: Melde
authors.affiliation: Department of Electrical and Computer Engineering, North Carolina State University, Raleigh, NC 27695, USA.|Joint Department of Biomedical Engineering, North Carolina State University and University of North Carolina at Chapel Hill, Raleigh, NC, 27695, USA.
authors.forename: Michael A
authors.initials: MA
authors.lastname: Daniele
authors.affiliation: Center for Bio/Molecular Science and Engineering, U.S. Naval Research Laboratory, 4555 Overlook Ave. SW, Washington D.C. 20375, USA.
authors.forename: David A
authors.initials: DA
authors.lastname: Stenger
mesh_terms: D000818:Animals; D015374:Biosensing Techniques / Q000295:instrumentation / Q000379:methods*; D002482:Cellulose / Q000737:chemistry*; D002645:Chickens; D055664:Electrochemical Techniques; D004573:Electrolytes / Q000032:analysis*; D041822:Gluconacetobacter xylinus / Q000378:metabolism; D049329:Nanostructures / Q000737:chemistry*; D016062:Porosity; D012867:Skin / Q000378:metabolism; D014173:Transistors, Electronic
chemical_list: D004573:Electrolytes; D002482:Cellulose