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Because it can present a serious threat to people\u2019s health, finding a fast, convenient, and economical means of detection is important. This paper proposes a label- and spectrophotometer-free apparatus that uses optical biological detection based on porous silicon microcavities. In this approach, the refractive index change induced by the biological reactions of a sample in a porous silicon microcavity is detected by measuring the change in the incidence angle corresponding to the maximum transmitted intensity of a near-infrared probe laser. This paper reports that the proposed method can achieve the label-free detection of 43\u2009kDa molecular weight hydatid disease antigens with high sensitivity.<\/jats:p>","DOI":"10.1038\/srep44798","type":"journal-article","created":{"date-parts":[[2017,3,20]],"date-time":"2017-03-20T10:37:47Z","timestamp":1490006267000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Hydatid detection using the near-infrared transmission angular spectra of porous silicon microcavity biosensors"],"prefix":"10.1038","volume":"7","author":[{"given":"Peng","family":"Li","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhenhong","family":"Jia","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guodong","family":"L\u00fc","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2017,3,20]]},"reference":[{"key":"BFsrep44798_CR1","doi-asserted-by":"publisher","first-page":"1295","DOI":"10.1016\/S0140-6736(03)14573-4","volume":"362","author":"DP McManus","year":"2003","unstructured":"McManus, D. 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