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The respiratory activity and lipid metabolism depending on the degree of oocyte maturation can be assessed using resonance Raman spectroscopy in a non-invasive manner.

A composite catalyst with a lamellar Fe 3 O 4 /Pt/ Fe 3 O 4 structure has been prepared from an Al 67 Pt 7 Fe 26 (at.%) alloy by leaching with an aqueous 10 % NaOH solution. The lamellar Fe 3 O 4 /Pt/Fe 3 O 4 phase exhibits significant catalytic performance as measured by activity and selectivity during the steam reforming of methanol SRM :Þ superior to the catalytic performance of Pt obtained from Al 2 Pt and a conventional impregnated Pt/Fe 3 O 4 catalyst under the same reaction conditions. It is clear that the Pt and Fe 3 O 4 were primarily responsible for the catalysis of the decomposition of methanol DM : CH 3 OH ! CO þ 2H 2 ð Þ and the water gas shift reaction WGSR : CO þ H 2 O CO 2 þ H 2 ð Þ , respectively. These two reactions work together in a complementary manner to facilitate the overall SRM reaction due to efficient the heat transfer characteristics of the lamellar Fe 3 O 4 /Pt/Fe 3 O 4 structure. In this study, we demonstrate that a lamellar structure is available to couple two separate reactions to obtain a new catalytic function. Graphical Abstract In order to improve catalytic properties (stability, functionality), we combined with eutectic alloys and leaching treatment to obtain alternately binary phases with nano-architecture for catalytic materials.

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