|
1
|
Madaci A, Suwannin P, Raffin G, Hangouet M, Martin M, Ferkous H, Bouzid A, Bausells J, Elaissari A, Errachid A, Jaffrezic-Renault N. A Sensitive Micro Conductometric Ethanol Sensor Based on an Alcohol Dehydrogenase-Gold Nanoparticle Chitosan Composite. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2316. [PMID: 37630900 PMCID: PMC10458242 DOI: 10.3390/nano13162316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/07/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023]
Abstract
In this paper, a microconductometric sensor has been designed, based on a chitosan composite including alcohol dehydrogenase-and its cofactor-and gold nanoparticles, and was calibrated by differential measurements in the headspace of aqueous solutions of ethanol. The role of gold nanoparticles (GNPs) was crucial in improving the analytical performance of the ethanol sensor in terms of response time, sensitivity, selectivity, and reproducibility. The response time was reduced to 10 s, compared to 21 s without GNPs. The sensitivity was 416 µS/cm (v/v%)-1 which is 11.3 times higher than without GNPs. The selectivity factor versus methanol was 8.3, three times higher than without GNPs. The relative standard deviation (RSD) obtained with the same sensor was 2%, whereas it was found to be 12% without GNPs. When the air from the operator's mouth was analyzed just after rinsing with an antiseptic mouthwash, the ethanol content was very high (3.5 v/v%). The background level was reached only after rinsing with water.
Collapse
Affiliation(s)
- Anis Madaci
- Institute of Analytical Sciences, University of Lyon, 69100 Villeurbanne, France; (A.M.); (P.S.); (G.R.); (M.H.); (M.M.); (A.E.); (A.E.)
- Laboratory of Materials and Electronics Systems, University El-Bachir El-Ibrahimi Bordj Bou Arreridj, Bordj Bou Arreridj 34000, Algeria;
| | - Patcharapan Suwannin
- Institute of Analytical Sciences, University of Lyon, 69100 Villeurbanne, France; (A.M.); (P.S.); (G.R.); (M.H.); (M.M.); (A.E.); (A.E.)
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Nakhon Pathom 73170, Thailand
| | - Guy Raffin
- Institute of Analytical Sciences, University of Lyon, 69100 Villeurbanne, France; (A.M.); (P.S.); (G.R.); (M.H.); (M.M.); (A.E.); (A.E.)
| | - Marie Hangouet
- Institute of Analytical Sciences, University of Lyon, 69100 Villeurbanne, France; (A.M.); (P.S.); (G.R.); (M.H.); (M.M.); (A.E.); (A.E.)
| | - Marie Martin
- Institute of Analytical Sciences, University of Lyon, 69100 Villeurbanne, France; (A.M.); (P.S.); (G.R.); (M.H.); (M.M.); (A.E.); (A.E.)
| | - Hana Ferkous
- Laboratory of Mechanical Engineering and Materials, Faculty of Technology, University of Skikda, Skikda 21000, Algeria;
| | - Abderrazak Bouzid
- Laboratory of Materials and Electronics Systems, University El-Bachir El-Ibrahimi Bordj Bou Arreridj, Bordj Bou Arreridj 34000, Algeria;
| | - Joan Bausells
- El Consejo Superior de Investigaciones Científicas (CSIC), Centro Nacional de Microelectrónica (CNM), Institut de Microelectrònica de Barcelona (IMB), Campus UAB, 08193 Barcelona, Spain;
| | - Abdelhamid Elaissari
- Institute of Analytical Sciences, University of Lyon, 69100 Villeurbanne, France; (A.M.); (P.S.); (G.R.); (M.H.); (M.M.); (A.E.); (A.E.)
| | - Abdelhamid Errachid
- Institute of Analytical Sciences, University of Lyon, 69100 Villeurbanne, France; (A.M.); (P.S.); (G.R.); (M.H.); (M.M.); (A.E.); (A.E.)
| | - Nicole Jaffrezic-Renault
- Institute of Analytical Sciences, University of Lyon, 69100 Villeurbanne, France; (A.M.); (P.S.); (G.R.); (M.H.); (M.M.); (A.E.); (A.E.)
| |
Collapse
|