000 02754nab a2200349 c 4500
001 koha000897207
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007 cr |
008 220629|2021 ru s a eng d
024 7 _a10.18287/JBPE21.07.020303
_2doi
035 _akoha000897207
040 _aRU-ToGU
_brus
_cRU-ToGU
245 1 0 _aEstimation of rabbit pancreas dispersion between 400 and 1000 nm
_cI. A. Martins, H. Silva, V. V. Tuchin, L. Oliveira
336 _aТекст
337 _aэлектронный
504 _aБиблиогр.: 48 назв.
520 3 _aCurrent biophotonics methods cover the entire optical spectrum from the deep ultraviolet to the terahertz. To optimize such methods for diagnostic and therapeutic applications, the need to obtain the wideband dispersion of tissues is high. The pancreas is a very important organ in the human body, since it produces insulin and its malfunction may induce diabetes. A reduced number of biophotonics publications regarding the pancreas is available, meaning that studies to determine its optical properties and their variation during optical clearing treatments are necessary. Considering this fact, we used the total internal reflection method to measure the refractive index of the rabbit pancreas for wavelengths between 400 and 850 nm. The experimental results allowed to calculate the pancreas dispersion with the Cauchy, Conrady and Cornu equations. It was observed that all those equations provided good data fitting in the spectral range of the measurements, but differences were observed outside these limits. Considering the wavelength of 633 nm, the mean value from the three dispersions was 1.3521, while the one published for porcine pancreas is 1.3517. The dispersion calculated with the Conrady equation does not present a fast decreasing behavior for shorter wavelengths as the ones calculated with the Cauchy and Cornu equations, but comparing these curves with a dispersion for a tissue-like material, all seem to have good agreement.
653 _aткань поджелудочной железы
653 _aпоказатель преломления
653 _aполное внутреннее отражение
653 _aдисперсия
655 4 _aстатьи в журналах
_9879358
700 1 _aMartins, Ins Soraia
_9855295
700 1 _aSilva, Hugo Filipe
_9855297
700 1 _aTuchin, Valery V.
_978712
700 1 _aOliveira, Lus Manuel
_9855298
773 0 _tJournal of biomedical photonics & engineering
_d2021
_gVol. 57, № 2. P. 020303-1-020303-10
_x2411-2844
852 4 _aRU-ToGU
856 4 _uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000897207
908 _aстатья
999 _c897207