Polyaniline/poly (2-acrylamido-2-methyl-1-propanesulfonic acid) modified cellulose as promising material for sensors design

I Ragazzini; I Gualandi; G D'Altri; V Di Matteo; L Yeasmin; M C Cassani; E Scavetta; E Bernardi; B Ballarin

doi:10.1016/j.carbpol.2023.121079

Polyaniline/poly (2-acrylamido-2-methyl-1-propanesulfonic acid) modified cellulose as promising material for sensors design

Carbohydr Polym. 2023 Sep 15:316:121079. doi: 10.1016/j.carbpol.2023.121079. Epub 2023 Jun 1.

Authors

I Ragazzini¹, I Gualandi², G D'Altri¹, V Di Matteo¹, L Yeasmin¹, M C Cassani³, E Scavetta¹, E Bernardi⁴, B Ballarin⁵

Affiliations

¹ Department of Industrial Chemistry "Toso Montanari", Bologna University, UdR INSTM of Bologna, Via Risorgimento 4, I-40136, Bologna, Italy.
² Department of Industrial Chemistry "Toso Montanari", Bologna University, UdR INSTM of Bologna, Via Risorgimento 4, I-40136, Bologna, Italy; Center for Industrial Research-Fonti Rinnovabili, Ambiente, Mare e Energia CIRI FRAME University of Bologna, Viale del Risorgimento 2, I-40136 Bologna, Italy. Electronic address: isacco.gualandi2@unibo.it.
³ Department of Industrial Chemistry "Toso Montanari", Bologna University, UdR INSTM of Bologna, Via Risorgimento 4, I-40136, Bologna, Italy; Center for Industrial Research-Advanced Applications in Mechanical Engineering and Materials Technology CIRI MAM University of Bologna, Viale del Risorgimento 2, I-40136 Bologna, Italy.
⁴ Department of Industrial Chemistry "Toso Montanari", Bologna University, UdR INSTM of Bologna, Via Risorgimento 4, I-40136, Bologna, Italy; Center for Industrial Research-Fonti Rinnovabili, Ambiente, Mare e Energia CIRI FRAME University of Bologna, Viale del Risorgimento 2, I-40136 Bologna, Italy.
⁵ Department of Industrial Chemistry "Toso Montanari", Bologna University, UdR INSTM of Bologna, Via Risorgimento 4, I-40136, Bologna, Italy; Center for Industrial Research-Advanced Applications in Mechanical Engineering and Materials Technology CIRI MAM University of Bologna, Viale del Risorgimento 2, I-40136 Bologna, Italy; Center for Industrial Research-Fonti Rinnovabili, Ambiente, Mare e Energia CIRI FRAME University of Bologna, Viale del Risorgimento 2, I-40136 Bologna, Italy. Electronic address: barbara.ballarin@unibo.it.

PMID: 37321752
DOI: 10.1016/j.carbpol.2023.121079

Abstract

A material based on cellulose coated with polyaniline/poly (2-acrylamido-2-methyl-1-propanesulfonic acid) (Cell/PANI-PAMPSA) was synthesized in a simple way starting from cellulose fibres, aniline and using PAMPSA as dopant. The morphology, mechanical properties, thermal stability, and electrical conductivity were investigated by means of several complementary techniques. The obtained results highlight the excellent features of the Cell/PANI-PAMPSA composite with respect to the Cell/PANI one. Based on the promising performance of this material, novel device functions and wearable applications have been tested. We focused on its possible single use as: i) humidity sensors and ii) disposable biomedical sensors to provide immediate diagnostic services as close to the patient as possible for heart rate or respiration activity monitoring. To our knowledge, this is the first time that Cell/PANI-PAMPSA system has been used for such applications.

Keywords: Cellulose; PANI-PAMPSA; Sensors; Transducers.