{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,24]],"date-time":"2026-01-24T15:15:44Z","timestamp":1769267744209,"version":"3.49.0"},"reference-count":155,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2012,11,29]],"date-time":"2012-11-29T00:00:00Z","timestamp":1354147200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Optical chemical sensors have promoted escalating interest in the determination of various pollutants in the environment, which are creating toxicity and may cause serious health problems. This review paper focuses particularly on the recent progress and developments in this field; the working principles and basic classes of optical chemical sensors have been briefly described.<\/jats:p>","DOI":"10.3390\/s121216522","type":"journal-article","created":{"date-parts":[[2012,11,29]],"date-time":"2012-11-29T11:43:01Z","timestamp":1354189381000},"page":"16522-16556","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":107,"title":["Recent Progress in Optical Chemical Sensors"],"prefix":"10.3390","volume":"12","author":[{"given":"Hummad","family":"Qazi","sequence":"first","affiliation":[{"name":"Infocomm Research Alliance (ICRA), Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Abu","family":"Mohammad","sequence":"additional","affiliation":[{"name":"Infocomm Research Alliance (ICRA), Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Muhammad","family":"Akram","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2012,11,29]]},"reference":[{"key":"ref_1","unstructured":"Yin, S., Ruffin, P.B., and Yu, F.T.S. 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