{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T02:17:18Z","timestamp":1760235438703,"version":"build-2065373602"},"reference-count":20,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2021,8,31]],"date-time":"2021-08-31T00:00:00Z","timestamp":1630368000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["11874332, 61727816"],"award-info":[{"award-number":["11874332, 61727816"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Key R &amp; D plan of Zhejiang Province","award":["2021C01179"],"award-info":[{"award-number":["2021C01179"]}]},{"name":"Zhejiang Provincial Natural Science Foundation of China","award":["LY21F050006"],"award-info":[{"award-number":["LY21F050006"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A 3-aminopropyl-triethoxysilane (APES) fiber-optic sensor based on a Mach\u2013Zehnder interferometer (MZI) was demonstrated. The MZI was constructed with a core-offset fusion single mode fiber (SMF) structure with a length of 3.0 cm. As APES gradually attaches to the MZI, the external environment of the MZI changes, which in turn causes change in the MZI\u2019s interference. That is the reason why we can obtain the relationships between the APES amount and resonance dip wavelength by measuring the transmission variations of the resonant dip wavelength of the MZI. The optimized amount of 1% APES for 3.0 cm MZI biosensors was 3 mL, whereas the optimized amount of 2% APES was 1.5 mL.<\/jats:p>","DOI":"10.3390\/s21175870","type":"journal-article","created":{"date-parts":[[2021,8,31]],"date-time":"2021-08-31T22:58:15Z","timestamp":1630450695000},"page":"5870","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Optical Fiber Based Mach-Zehnder Interferometer for APES Detection"],"prefix":"10.3390","volume":"21","author":[{"given":"Huitong","family":"Deng","sequence":"first","affiliation":[{"name":"Institute of Optoelectronic Technology, China Jiliang University, Hangzhou 310018, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaoman","family":"Chen","sequence":"additional","affiliation":[{"name":"Institute of Optoelectronic Technology, China Jiliang University, Hangzhou 310018, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6772-0876","authenticated-orcid":false,"given":"Zhenlin","family":"Huang","sequence":"additional","affiliation":[{"name":"Institute of Optoelectronic Technology, China Jiliang University, Hangzhou 310018, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shiqi","family":"Kang","sequence":"additional","affiliation":[{"name":"Institute of Optoelectronic Technology, China Jiliang University, Hangzhou 310018, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Weijia","family":"Zhang","sequence":"additional","affiliation":[{"name":"Institute of Optoelectronic Technology, China Jiliang University, Hangzhou 310018, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hongliang","family":"Li","sequence":"additional","affiliation":[{"name":"Institute of Optoelectronic Technology, China Jiliang University, Hangzhou 310018, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fangzhou","family":"Shu","sequence":"additional","affiliation":[{"name":"Institute of Optoelectronic Technology, China Jiliang University, Hangzhou 310018, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tingting","family":"Lang","sequence":"additional","affiliation":[{"name":"Institute of Optoelectronic Technology, China Jiliang University, Hangzhou 310018, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chunliu","family":"Zhao","sequence":"additional","affiliation":[{"name":"Institute of Optoelectronic Technology, China Jiliang University, Hangzhou 310018, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4684-4156","authenticated-orcid":false,"given":"Changyu","family":"Shen","sequence":"additional","affiliation":[{"name":"Institute of Optoelectronic Technology, China Jiliang University, Hangzhou 310018, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,8,31]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"11142","DOI":"10.1021\/la061240g","article-title":"Optimization of silica silanization by 3-aminopropyltriethoxysilane","volume":"22","author":"Howarter","year":"2006","journal-title":"Langmuir ACS J. 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