In recent years portable potentiostats have increased in popularity allowing to perform electrochemical analyses outside the laboratories, moving them to home or point of care environments. In this context, the idea of performing multiple acquisitions at the same time is particularly attractive to deal with replicates or with simultaneous multiple quantitative assessments of different analytes, shortening the time required for the analyses and/or increasing data reliability. Multiple parallel channels on a compact and wireless device can maximize the overall system usability. In this paper, a multichannel Wi-Fi-based portable potentiostat is described. The device features four independent channels, which can be conditioned with different voltages. The device was designed to minimize the component count and the power consumption, obtaining 23.5mW per channel. The system was electrically characterized, obtaining an excellent linearity (R2 = 0.9999), a maximum channel-to-channel mismatch of 1% when the maximum current range is selected, and a negligible crosstalk among the channels. Moreover, the multichannel potentiostat was tested in the real case scenario of a semi-quantitative evaluation of the anti-tissue transglutaminase target antibodies in celiac disease. Two replicates of IgG and IgA were simultaneously acquired, showing a good capability of separating the positive and the negative samples, with a reduction of the acquisition time of 76% with respect to a single channel solution.
A stand-alone portable potentiostat with parallel channels for smart electrochemical analyses / Boni, A.; Bianchi, V.; Fortunati, S.; Giannetto, M.; Careri, M.; De Munari, I.. - In: IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT. - ISSN 0018-9456. - 72:(2023), pp. 7500112.1-7500112.12. [10.1109/TIM.2022.3228004]
A stand-alone portable potentiostat with parallel channels for smart electrochemical analyses
Boni A.;Bianchi V.;Fortunati S.;Giannetto M.;Careri M.;De Munari I.
2023-01-01
Abstract
In recent years portable potentiostats have increased in popularity allowing to perform electrochemical analyses outside the laboratories, moving them to home or point of care environments. In this context, the idea of performing multiple acquisitions at the same time is particularly attractive to deal with replicates or with simultaneous multiple quantitative assessments of different analytes, shortening the time required for the analyses and/or increasing data reliability. Multiple parallel channels on a compact and wireless device can maximize the overall system usability. In this paper, a multichannel Wi-Fi-based portable potentiostat is described. The device features four independent channels, which can be conditioned with different voltages. The device was designed to minimize the component count and the power consumption, obtaining 23.5mW per channel. The system was electrically characterized, obtaining an excellent linearity (R2 = 0.9999), a maximum channel-to-channel mismatch of 1% when the maximum current range is selected, and a negligible crosstalk among the channels. Moreover, the multichannel potentiostat was tested in the real case scenario of a semi-quantitative evaluation of the anti-tissue transglutaminase target antibodies in celiac disease. Two replicates of IgG and IgA were simultaneously acquired, showing a good capability of separating the positive and the negative samples, with a reduction of the acquisition time of 76% with respect to a single channel solution.File | Dimensione | Formato | |
---|---|---|---|
A_Stand-Alone_Portable_Potentiostat_With_Parallel_Channels_for_Smart_Electrochemical_Analyses.pdf
solo utenti autorizzati
Tipologia:
Versione (PDF) editoriale
Licenza:
NON PUBBLICO - Accesso privato/ristretto
Dimensione
2.4 MB
Formato
Adobe PDF
|
2.4 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
TIM3228004_proof.pdf
accesso aperto
Tipologia:
Documento in Post-print
Licenza:
Creative commons
Dimensione
2.61 MB
Formato
Adobe PDF
|
2.61 MB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.