PMID- 33896556 OWN - NLM STAT- MEDLINE DCOM- 20210514 LR - 20210514 IS - 1873-4324 (Electronic) IS - 0003-2670 (Linking) VI - 1161 DP - 2021 May 29 TI - A silicon nitride ISFET based immunosensor for tumor necrosis factor-alpha detection in saliva. A promising tool for heart failure monitoring. PG - 338468 LID - S0003-2670(21)00294-4 [pii] LID - 10.1016/j.aca.2021.338468 [doi] AB - According to the European statistics, approximately 26 million patients worldwide suffer from heart failure (HF), and this number seems to be steadily increasing. Inflammation plays a central role in the development of HF, and the pro-inflammatory cytokine Tumor necrosis factor-alpha (TNF-alpha) represents inflammation gold-standard biomarker. Early detection plays a crucial role for the prognosis and treatment of HF. An Ion Sensitive Field Effect Transistor (ISFET) based on silicon nitride transducer and biofunctionalized with anti-TNF-alpha antibody for label-free detection of salivary TNF-alpha is proposed. Electrochemical impedance spectroscopy (EIS) was used for TNF-alpha detection. Our ImmunoFET offered a detection limit of 1 pg mL(-1), with an analytical reproducibility expressed by a coefficient of variance (CV) resulted < 10% for the analysis of saliva samples, and an analyte recovery of 94 +/- 6%. In addition, it demonstrated high selectivity when compared to other HF biomarkers such as Inteleukin-10, N-terminal pro B-type natriuretic peptide, and Cortisol. Finally, ImmunoFET accuracy in determining the unknown concentration of TNF-alpha was successfully tested in saliva samples by performing standard addition method. The proposed ImmunoFET showed great promise as a complementary tool for biomedical application for HF monitoring by a non-invasive, rapid and accurate assessment of TNF-alpha. CI - Copyright (c) 2021. Published by Elsevier B.V. FAU - Ben Halima, Hamdi AU - Ben Halima H AD - Institute of Analytical Sciences (ISA) - UMR 5280, Claude Bernard Lyon 1 University, 69100, Villeurbanne, Lyon, France. FAU - Bellagambi, Francesca G AU - Bellagambi FG AD - Institute of Analytical Sciences (ISA) - UMR 5280, Claude Bernard Lyon 1 University, 69100, Villeurbanne, Lyon, France. Electronic address: francesca.bellagambi@univ-lyon1.fr. FAU - Alcacer, Albert AU - Alcacer A AD - Institute of Microelectronics of Barcelona (IMB-CNM, CSIC), Campus UAB, 08193, Bellaterra, Barcelona, Spain. FAU - Pfeiffer, Norman AU - Pfeiffer N AD - Fraunhofer IIS, Fraunhofer Institute for Integrated Circuits, Am Wolfsmantel 33, 91058, Erlangen, Germany. FAU - Heuberger, Albert AU - Heuberger A AD - Information Technology (LIKE), Friedrich-Alexander-Universitat Erlangen-Nurnberg (FAU), Am Wolfsmantel 33, 91058, Erlangen, Germany. FAU - Hangouet, Marie AU - Hangouet M AD - Institute of Analytical Sciences (ISA) - UMR 5280, French National Centre for Scientific Research (CNRS), 69100, Villeurbanne, Lyon, France. FAU - Zine, Nadia AU - Zine N AD - Institute of Analytical Sciences (ISA) - UMR 5280, Claude Bernard Lyon 1 University, 69100, Villeurbanne, Lyon, France. FAU - Bausells, Joan AU - Bausells J AD - Institute of Microelectronics of Barcelona (IMB-CNM, CSIC), Campus UAB, 08193, Bellaterra, Barcelona, Spain. FAU - Elaissari, Abdelhamid AU - Elaissari A AD - Institute of Analytical Sciences (ISA) - UMR 5280, Claude Bernard Lyon 1 University, 69100, Villeurbanne, Lyon, France. FAU - Errachid, Abdelhamid AU - Errachid A AD - Institute of Analytical Sciences (ISA) - UMR 5280, Claude Bernard Lyon 1 University, 69100, Villeurbanne, Lyon, France. Electronic address: abdelhamid.errachid-el-salhi@univ-lyon1.fr. LA - eng PT - Journal Article DEP - 20210402 PL - Netherlands TA - Anal Chim Acta JT - Analytica chimica acta JID - 0370534 RN - 0 (Silicon Compounds) RN - 0 (Tumor Necrosis Factor-alpha) RN - QHB8T06IDK (silicon nitride) SB - IM MH - *Biosensing Techniques MH - *Heart Failure/diagnosis MH - Humans MH - Immunoassay MH - Reproducibility of Results MH - Saliva MH - Silicon Compounds MH - Tumor Necrosis Factor-alpha OTO - NOTNLM OT - Biosensor OT - Electrochemical impedance spectroscopy OT - Heart failure OT - ImmunoFET OT - Saliva analysis OT - Tumor necrosis factor-alpha COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2021/04/27 06:00 MHDA- 2021/05/15 06:00 CRDT- 2021/04/26 05:32 PHST- 2021/01/15 00:00 [received] PHST- 2021/03/15 00:00 [revised] PHST- 2021/03/29 00:00 [accepted] PHST- 2021/04/26 05:32 [entrez] PHST- 2021/04/27 06:00 [pubmed] PHST- 2021/05/15 06:00 [medline] AID - S0003-2670(21)00294-4 [pii] AID - 10.1016/j.aca.2021.338468 [doi] PST - ppublish SO - Anal Chim Acta. 2021 May 29;1161:338468. doi: 10.1016/j.aca.2021.338468. Epub 2021 Apr 2.