{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,6]],"date-time":"2026-11-06T10:31:11Z","timestamp":1793961071074,"version":"4.8.0"},"reference-count":0,"publisher":"The Journal of Food and Drug Analysis (JFDA), Food and Drug Administration, Taiwan (TFDA)","issue":"3","license":[{"start":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T00:00:00Z","timestamp":1784678400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Food and Drug Analysis"],"abstract":"<jats:p>Caffeine is a neurotransmitter, important to human health. This compound exists in many food products, has been added to soft drinks, pharmaceutical drugs. For many applications, a field deployable technique for quick detecting caffeine is attractive. In this paper, we report a selective optical fiber caffeine sensor using a molecularly imprinted polymer (MIP) membrane as a transducer. The membrane extracts\/concentrate caffeine from sample solutions significantly improved sensor\u2019s sensitivity with a 95 times sensitivity improvement. The sensor achieved a detection limit of 0.20 \u00b5g\/mL. This sensor was used to directly analyze caffeine in soft drink products without interference from sample matrix.<\/jats:p>","DOI":"10.38212\/2224-6614.3562","type":"journal-article","created":{"date-parts":[[2026,7,26]],"date-time":"2026-07-26T21:23:34Z","timestamp":1785101014000},"source":"Crossref","is-referenced-by-count":0,"title":["An optical fiber caffeine sensor using a molecularly imprinted polymethacrylic acid membrane coated on optical fiber surface as a transducer"],"prefix":"10.38212","volume":"34","author":[{"given":"Josiah W.","family":"Miller","sequence":"first","affiliation":[{"name":"Department of Chemistry and Physics, West Texas A&M University, WTAMU Box 60732, Canyon, TX 79016"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jason D.","family":"McCaslin","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Physics, West Texas A&M University, WTAMU Box 60732, Canyon, TX 79016"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shiquan","family":"Tao","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Physics, West Texas A&M University, WTAMU Box 60732, Canyon, TX 79016"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"25385","published-online":{"date-parts":[[2026,7,22]]},"container-title":["Journal of Food and Drug Analysis"],"original-title":[],"language":"en","deposited":{"date-parts":[[2026,11,6]],"date-time":"2026-11-06T10:14:33Z","timestamp":1793960073000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.jfda-online.com\/journal\/vol34\/iss3\/1"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,7,22]]},"references-count":0,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2026,7,22]]}},"URL":"https:\/\/doi.org\/10.38212\/2224-6614.3562","relation":{},"ISSN":["2224-6614"],"issn-type":[{"value":"2224-6614","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,7,22]]}}}