{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,24]],"date-time":"2026-06-24T08:06:46Z","timestamp":1782288406971,"version":"3.54.5"},"reference-count":24,"publisher":"The Company of Biologists","issue":"1","license":[{"start":{"date-parts":[[1976,6,1]],"date-time":"1976-06-01T00:00:00Z","timestamp":202435200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/www.biologists.com\/user-licence-1-1\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[1976,6,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n               <jats:p>Electron microscopy has revealed that chitin from a representative selection of insect orders (plus one crustacean and one arachnid) is localized in crystallites about 2\u20198 nm across. Furthermore, these crystallites are arranged on an hexagonal or pseudo-hexagonal lattice, the lateral order of which varies considerably. The lattice becomes secondarily reoriented during cuticle expansion following an ecdysis. The size of the \u2018unit cell\u2019 has been measured both by optical diffraction and direct measurements of the micrographs, permitting an estimate of the chitin and resilin content for locust rubberlike cuticle. The number of poly-N-acetyl-glucosamine chains per sheet and sheets per crystallite can be estimated from the physical dimensions of the crystallite. Each crystallite is unlikely to comprise more than 3 sheets and 6 chains per sheet. The calculated and measured density of \u03b1-chitin can be shown to be in close agreement.<\/jats:p>","DOI":"10.1242\/jcs.21.1.73","type":"journal-article","created":{"date-parts":[[2021,4,24]],"date-time":"2021-04-24T05:17:36Z","timestamp":1619241456000},"page":"73-82","source":"Crossref","is-referenced-by-count":148,"title":["The chitin crystallite in arthropod cuticle"],"prefix":"10.1242","volume":"21","author":[{"given":"A. C.","family":"Neville","sequence":"first","affiliation":[{"name":"Department of Zoology, Woodland Road, Bristol, England"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D. A. D.","family":"Parry","sequence":"additional","affiliation":[{"name":"Department of Zoology, Woodland Road, Bristol, England"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.","family":"Woodhead-Galloway","sequence":"additional","affiliation":[{"name":"Department of Zoology, Woodland Road, Bristol, England"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"237","published-online":{"date-parts":[[1976,6,1]]},"reference":[{"key":"2023062603471762300_JOCES_21_1_73C1","doi-asserted-by":"publisher","first-page":"669","DOI":"10.1083\/jcb.3.5.669","article-title":"The crystal structure of a-chitin (poly-N-acetyl-D-glucosaminc)","volume":"3","author":"Carlstrom","year":"1957","journal-title":"J. biophys. biochem. Cytol"},{"key":"2023062603471762300_JOCES_21_1_73C2","first-page":"in","article-title":"The structure of insect cuticles","volume":"134","author":"Fraenkel","year":"1947","journal-title":"Proc. R. Soc. 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