NDLI: Specially Designed Polyaniline/Polypyrrole Ink for a Fully Printed Highly Sensitive pH Microsensor.

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Specially Designed Polyaniline/Polypyrrole Ink for a Fully Printed Highly Sensitive pH Microsensor.

Content Provider	Europe PMC
Author	Zea, Miguel Texidó, Robert Villa, Rosa Borrós, Salvador Gabriel, Gemma
Copyright Year	2021
Abstract	pH sensing for healthcareapplications requires sensors with mechanicallystable materials of high sensitivity and high reproducibility combinedwith low-cost fabrication technologies. This work proposes a fullyprinted pH sensor based on a specially formulated conducting polymerdeposited on a microelectrode in a flexible substrate. A formulation,which combined polyaniline (PANI) and polypyrrole (PPy) with integratedpolyelectrolyte poly(sodium 4-styrenesulfonate) (PSS), was speciallyprepared to be printed by inkjet printing (IJP). The sensor has goodsensitivity in the physiological region (pH 7–7.5) key forthe healthcare biosensor. This mixture printed over a commercial goldink, which has a singular chemical functionalization with phthalocyanine(Pc), increased the sensor sensitivity, showing an excellent reproducibilitywith a linear super-Nernstian response (81.2 ± 0.5 mV/pH unit)in a wide pH range (pH 3–10). This new ink together with theIJP low-cost technique opens new opportunities for pH sensing in thehealthcare field with a single device, which is disposable, highlysensitive, and stable in the whole pH range.
ISSN	19448244
Journal	ACS Applied Materials & Interfaces
Volume Number	13
PubMed Central reference number	PMC8397255
Issue Number	28
PubMed reference number	34227800
e-ISSN	19448252
DOI	10.1021/acsami.1c08043
Language	English
Publisher	AmericanChemical Society
Publisher Date	2021-07-06
Access Restriction	Open
Rights License	Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). © 2021 The Authors. Published by AmericanChemical Society
Subject Keyword	pH sensor polymeric ink polyaniline polypyrrole inkjet printing
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Medicine Materials Science

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