Shi, Y, Li, Z, Shi, J et al. (6 more authors) (2018) Titanium dioxide-polyaniline/silk fibroin microfiber sensor for pork freshness evaluation. Sensors and Actuators B: Chemical, 260. pp. 465-474. ISSN 0925-4005
Abstract
A novel and low-cost micro-sensor with a diameter of 12 μm was developed based on Titanium dioxide-Polyaniline/Silk fibroin fiber (TiO₂-PANI/SFF). TiO₂-PANI composites were deposited on surfaces of SFFs by in-situ polymerization. The microfibers were characterized by Scanning electron microscopy (SEM), Energy dispersive spectrometer (EDS), Raman spectrometer, Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD), and the formation mechanism of them was illustrated in detail. With ammonia (NH₃) as model gas, the TiO₂-PANI/SFF micro-sensor showed good sensing performance with response value of 0.82 and response time of 10 s to NH₃ of 100 μg/L. When the micro-sensors were applied for pork freshness evaluation, the output response values showed good correlation with the total volatile basic nitrogen (TVB-N) levels in pork (R² = 0.990), and the discriminant results of the micro-sensors for pork freshness based on linear discriminant analysis (LDA) showed the prediction accuracy of calibration and prediction set was 90.73% and 86.38%, respectively, which indicated the great potential of TiO₂-PANI/SFF micro-sensor for pork freshness evaluation.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 Elsevier B.V. All rights reserved. This is an author produced version of an article published in Sensors and Actuators B: Chemical. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Silk fibroin; Titanium dioxide; Polyaniline; Pork freshness; Microfiber sensor |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Food Science and Nutrition (Leeds) > FSN Colloids and Food Processing (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 19 Oct 2021 11:06 |
Last Modified: | 25 Jun 2023 22:47 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.snb.2018.01.078 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:179321 |
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