{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,20]],"date-time":"2026-02-20T07:28:56Z","timestamp":1771572536181,"version":"3.50.1"},"reference-count":56,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2022,2,21]],"date-time":"2022-02-21T00:00:00Z","timestamp":1645401600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["FCT-UIDB\/04730\/2020"],"award-info":[{"award-number":["FCT-UIDB\/04730\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Photonics"],"abstract":"<jats:p>The pancreas is a highly important organ, since it produces insulin and prevents the occurrence of diabetes. Although rare, pancreatic cancer is highly lethal, with a small life expectancy after being diagnosed. The pancreas is one of the organs less studied in the field of biophotonics. With the objective of acquiring information that can be used in the development of future applications to diagnose and treat pancreas diseases, the spectral optical properties of the rabbit pancreas were evaluated in a broad-spectral range, between 200 and 1000 nm. The method used to obtain such optical properties is simple, based almost on direct calculations from spectral measurements. The optical properties obtained show similar wavelength dependencies to the ones obtained for other tissues, but a further analysis on the spectral absorption coefficient showed that the pancreas tissues contain pigments, namely melanin, and lipofuscin. Using a simple calculation, it was possible to retrieve similar contents of these pigments from the absorption spectrum of the pancreas, which indicates that they accumulate in the same proportion as a result of the aging process. Such pigment accumulation was camouflaging the real contents of DNA, hemoglobin, and water, which were precisely evaluated after subtracting the pigment absorption.<\/jats:p>","DOI":"10.3390\/photonics9020122","type":"journal-article","created":{"date-parts":[[2022,2,21]],"date-time":"2022-02-21T20:47:45Z","timestamp":1645476465000},"page":"122","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Fast Estimation of the Spectral Optical Properties of Rabbit Pancreas and Pigment Content Analysis"],"prefix":"10.3390","volume":"9","author":[{"given":"In\u00eas Soraia","family":"Martins","sequence":"first","affiliation":[{"name":"Faculty of Engineering, University of Porto, FEUP, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal"},{"name":"Center of Innovation in Engineering and Industrial Technology, ISEP, Rua Dr. Ant\u00f3nio Bernardino de Almeida 431, 4249-015 Porto, Portugal"}]},{"given":"Hugo Filipe","family":"Silva","sequence":"additional","affiliation":[{"name":"Faculty of Engineering, University of Porto, FEUP, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal"},{"name":"Center of Innovation in Engineering and Industrial Technology, ISEP, Rua Dr. Ant\u00f3nio Bernardino de Almeida 431, 4249-015 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7479-2694","authenticated-orcid":false,"given":"Valery Victorovich","family":"Tuchin","sequence":"additional","affiliation":[{"name":"Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia"},{"name":"Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin\u2019s Av., 634050 Tomsk, Russia"},{"name":"Laboratory of Laser Diagnostics of Technical and Living Systems, Institute of Precision Mechanics and Control, FRC \u201cSaratov Scientific Centre of the Russian Academy of Sciences\u201d, 24 Rabochaya, 410028 Saratov, Russia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0667-3428","authenticated-orcid":false,"given":"Lu\u00eds Manuel","family":"Oliveira","sequence":"additional","affiliation":[{"name":"Center of Innovation in Engineering and Industrial Technology, ISEP, Rua Dr. Ant\u00f3nio Bernardino de Almeida 431, 4249-015 Porto, Portugal"},{"name":"Physics Department, School of Engineering, Polytechnic Institute of Porto, Rua Dr. Ant\u00f3nio Bernardino de Almeida 431, 4249-015 Porto, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2022,2,21]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Popp, J., Tuchin, V.V., Chiou, A., and Heinemann, S.H. 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