Electrospun Nylon Fibers with Integrated Polypyrrole Molecularly Imprinted Polymers for the Detection of GlucoseClick to copy article linkArticle link copied!
- Robert D. CrapnellRobert D. CrapnellFaculty of Science and Engineering, Manchester Metropolitan University, John Dalton Building, Chester Street, Manchester M1 5GD, United KingdomMore by Robert D. Crapnell
- Ryan J. StreetRyan J. StreetFaculty of Science and Engineering, Manchester Metropolitan University, John Dalton Building, Chester Street, Manchester M1 5GD, United KingdomMore by Ryan J. Street
- Valentine Ferreira-SilvaValentine Ferreira-SilvaDepartment of Mechanical Engineering, Institut National Des Sciences Appliquées Lyon, 69100 Villeurbanne, FranceMore by Valentine Ferreira-Silva
- Michael P. DownMichael P. DownFaculty of Science and Engineering, Manchester Metropolitan University, John Dalton Building, Chester Street, Manchester M1 5GD, United KingdomMore by Michael P. Down
- Marloes PeetersMarloes PeetersSchool of Engineering, Newcastle University, Merz Court, Claremond Road, Newcastle Upon Tyne NE1 7RU, United KingdomMore by Marloes Peeters
- Craig E. Banks*Craig E. Banks*Email: [email protected]. Tel: +44 (0)1612 471196.Faculty of Science and Engineering, Manchester Metropolitan University, John Dalton Building, Chester Street, Manchester M1 5GD, United KingdomMore by Craig E. Banks
Abstract

Electrospun nylon 6,6 fibers incorporating polypyrrole (PPy) molecular-imprinted polymers (MIPs) were produced for the selective detection of d-glucose using a thermal detection methodology. PPy MIPs were produced using a facile bulk synthesis approach and electrospun into intricate fibrous scaffolds giving a highly mass-producible sensing interface. The maximum incorporation of MIPs and greatest sensing performance was found to be 12.1 wt % in conjunction with the heat-transfer method (HTM), a low-cost and simple thermal detection method that measures changes in the thermal resistance at the solid–liquid interface. It is demonstrated that a 12.1% incorporation of MIPs into electrospun fibers produces the widest working linear range with a limit of detection of 0.10 ± 0.01 mM. There were no observed changes in the measured thermal resistance response to incubation with a series of structurally similar compounds, providing evidence toward the selectivity of the platform. Additionally, the sensing platform exhibited a linear working response to glucose samples in artificial sweat solutions in the biologically relevant range. This is the first report of the incorporation of MIPs into nylon 6,6 fibers for the detection of glucose and points toward the possibility of developing mass-producible electrospun fibers embedded with low-cost recognition elements of improved thermal and chemical stability for the application of wearable sensor technology.
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