{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,19]],"date-time":"2026-10-19T19:47:04Z","timestamp":1792439224654,"version":"4.5.0"},"reference-count":129,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2025,11,27]],"date-time":"2025-11-27T00:00:00Z","timestamp":1764201600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biosensors"],"abstract":"<jats:p>It is well known that nitrite is widely used in industrial and agricultural sectors as a preservative, corrosion inhibitor, and intermediate in chemical synthesis; consequently, nitrite residues are often present in food, water, and the environment as a result of meat curing, fertilizer use, and wastewater discharge. Despite having several applications, nitrite exerts toxic effects on human beings and aquatic life. Therefore, the monitoring of nitrite is of particular significance to avoid negative impacts on human health, the environment, and aquatic life. Previously, the electrochemical method has been extensively used for the development of nitrite sensors using various advanced electrode materials. Additionally, zinc oxide (ZnO), cerium oxide (CeO2), titanium dioxide (TiO2), copper oxide (CuO), iron oxides, nickel oxide (NiO), polymers, MXenes, reduced graphene oxide (rGO), carbon nanotubes (CNTs), graphitic carbon nitride (gCN), metal\u2013organic frameworks (MOFs), and other composites have been utilized as electrocatalysts for the fabrication of nitrite electrochemical sensors. This review article provides an overview of the construction of nitrite sensors using advanced electrode materials. The electrochemical activities of the reported nitrite sensors are discussed. Furthermore, limitations and future perspectives regarding the determination of nitrite are discussed.<\/jats:p>","DOI":"10.3390\/bios15120783","type":"journal-article","created":{"date-parts":[[2025,11,28]],"date-time":"2025-11-28T09:56:02Z","timestamp":1764323762000},"page":"783","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Progress in Electrode Modifiers for Nitrite Electrochemical Sensing Applications"],"prefix":"10.3390","volume":"15","author":[{"given":"Mohammad","family":"Aslam","sequence":"first","affiliation":[{"name":"School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3887-905X","authenticated-orcid":false,"given":"Saood","family":"Ali","sequence":"additional","affiliation":[{"name":"School of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6670-740X","authenticated-orcid":false,"given":"Khaled","family":"Hamdy","sequence":"additional","affiliation":[{"name":"School of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"family":"Danishuddin","sequence":"additional","affiliation":[{"name":"Department of Biotechnology, Yeungnam University, Gyeongsan 38541, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8603-3572","authenticated-orcid":false,"given":"Khursheed","family":"Ahmad","sequence":"additional","affiliation":[{"name":"Discipline of Chemistry, Indian Institute of Technology Indore, Indore 453552, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rohit Kumar Singh","family":"Gautam","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Teerthanker Mahaveer University, Moradabad 244001, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,11,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Guerrieri, N., Mazzini, S., and Borgonovo, G. 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