NDLI: Photothermal and Structural Comparative Analysis of Chitinous Exoskeletons of Marine Invertebrates

Content Provider	Springer Nature Link
Author	Juárez de la Rosa, B. A. Yañez Limón, J. M. Tiburcio More, J. A. Zambra, M. Ardisson, P. L. Quintana, P. Alvarado Gil, J. J.
Copyright Year	2012
Abstract	Chitinous materials are common in nature and provide different functions including protection and support of many invertebrate animals. Exoskeletons in these organisms constitute the boundary regulating interaction between the animal and the external environment. For this reason, it is important to study the physical properties of these skeletons, in particular, thermal properties. The objective of this study is to investigate the thermal diffusivity of the skeletons of four species of marine invertebrates, Antipathes caribbeana (black coral), Panulinus argus (lobster), Callinectes sapidus (crab), and Limulus polyphemus (xiphosure). Thermal characterization is performed using photothermal radiometry (PTR) and laser-flash techniques. The measurements are complemented with structural characterization using X-ray diffraction. The results using both laser flash and PTR are consistent. These indicate that the thermal properties are strongly dependent on the presence of biogenic minerals (calcium and/or magnesium) and on the crystallinity index of the structure. The thermal-diffusivity values show an increase as a function of the crystallinity index.
Starting Page	1856
Ending Page	1863
Page Count	8
File Format	PDF
ISSN	0195928X
Journal	International Journal of Thermophysics
Volume Number	33
Issue Number	10-11
e-ISSN	15729567
Language	English
Publisher	Springer US
Publisher Date	2012-07-07
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chitin skeleton Laser-flash technique Photothermal radiometry Thermal diffusivity Condensed Matter Physics Mechanics Physical Chemistry Industrial Chemistry/Chemical Engineering
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics

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