نتایج جستجو برای: cuttlebone
تعداد نتایج: 69 فیلتر نتایج به سال:
Six out of seven cuttlefish acquired by the Smithsonian National Zoological Park in July 1998 died before 1 November 1998. Postmortem examinations showed mantle ulcers, secondary bacterial infections, inanition, and cuttlebone fractures. The surviving cuttlefish developed a progressive focal mantle ulcer, was treated with oral chloramphenicol intermittently for 9 wk, and maintained a normal app...
The synthesis of ceramic materials combining high porosity and permeability with good mechanical stability is challenging, as optimising the latter requires compromises regarding the first two properties. Nonetheless, significant progress can be made in this direction by taking advantage of the structural design principles evolved by nature. Natural cellular solids achieve good mechanical stabi...
Three types of chitin as α (exoskeleton of crustaceans), β (cuttlebone of cephalopods) and γ (some fungal cell wall) exist in nature. Chitosan is the most important derivative of chitin, which has various biological activities. In this study, α, β and γ-chitosans were extracted from Portunus segnis exoskeleton, Sepia pharonis cuttlebone and Aspergillus niger ce...
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