CUED Publications database

Polyelectrolyte Layer-by-Layer Assembly on Organic Electrochemical Transistors.

Pappa, A-M and Inal, S and Roy, K and Zhang, Y and Pitsalidis, C and Hama, A and Pas, J and Malliaras, GG and Owens, RM (2017) Polyelectrolyte Layer-by-Layer Assembly on Organic Electrochemical Transistors. ACS Appl Mater Interfaces, 9. pp. 10427-10434. ISSN 1944-8244

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Abstract

Oppositely charged polyelectrolyte multilayers (PEMs) were built up in a layer-by-layer (LbL) assembly on top of the conducting polymer channel of an organic electrochemical transistor (OECT), aiming to combine the advantages of well-established PEMs with a high performance electronic transducer. The multilayered film is a model system to investigate the impact of biofunctionalization on the operation of OECTs comprising a poly(3,4-ethylenedioxythiophene) polystyrenesulfonate (PEDOT:PSS) film as the electrically active layer. Understanding the mechanism of ion injection into the channel that is in direct contact with charged polymer films provides useful insights for novel biosensing applications such as nucleic acid sensing. Moreover, LbL is demonstrated to be a versatile electrode modification tool enabling tailored surface features in terms of thickness, softness, roughness, and charge. LbL assemblies built up on top of conducting polymers will aid the design of new bioelectronic platforms for drug delivery, tissue engineering, and medical diagnostics.

Item Type: Article
Uncontrolled Keywords: conducting polymer layer-by-layer nucleic acid organic transistor polyelectrolyte Drug Delivery Systems Electrodes Polyelectrolytes
Subjects: UNSPECIFIED
Divisions: UNSPECIFIED
Depositing User: Cron Job
Date Deposited: 10 Sep 2017 20:11
Last Modified: 08 Apr 2021 06:51
DOI: 10.1021/acsami.6b15522