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STRUCTURES OF Ni(II) OCTAETHYLPORPHYRIN AND C60 AT Au(111) SURFACE INVESTIGATED BY STM
GE-BO PAN,LI-JUN WAN,HUI-JUAN YAN 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2006 NANO Vol.1 No.1
In situ scanning tunneling microscopy (STM) was employed to investigate the adsorption of C60 on a Ni(II) octaethylporphyrin (NiOEP) adlayer at liquid/Au(111) interface. It was found that C60 molecules tend to form small islands without defined coordination to the underlying NiOEP array. Moreover, increasing the surface coverage of C60 resulted in the formation of multilayers. The mixture of C60 and NiOEP prepared in solution formed separated domains. The results suggested that the C60–C60 interaction is stronger than that of C60–NiOEP and dominated the adsorption of C60 on NiOEP-modified Au(111) surface. This work provides a direct evidence at molecular scale for the coordination of C60 with NiOEP in a two-dimensional assembly, demonstrating that immobilizing C60 at the geometric center of NiOEP on an Au(111) surface in solution is complicated.
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Ling‑Hong Miao,Wen‑Jing Pan,Yan Lin,Bo Liu,Ming‑Chun Ren,Qun‑Lan Zhou,Xian‑Ping Ge 한국유전학회 2017 Genes & Genomics Vol.39 No.12
The objective of this study was to analyze the target genes and regulatory function of miR-34a in Megalobrama amblycephala using second-generation highthroughput sequencing and bioinformatic tools. Functional enrichment analysis was performed by gene ontology. MiR- 34a and target gene expression levels were measured in M. amblycephala fed normal and high-carbohydrate diets. The results revealed that miR-34a was highly conserved in several species, and miR-34a of M. amblycephala has a close evolutionary relationship to that of zebrafish and common carp. miRanda, TargetScan, RNAhybrid predicted 5,185, 6,282 and 2,168 target genes, respectively, and 645 target genes were in common. According to annotation information, the target genes were enriched in phosphate metabolism, glycerophospholipid metabolism, Golgi vesicle transport, cell division, and other biological processes (P < 0.05). Pathway enrichment analysis revealed that these target genes were mainly enriched in alpha-linolenic acid and linoleic acid metabolism, ether lipid metabolism, VEGF signaling pathway, Fc epsilon RI signaling pathway, GnRH signaling pathway, and MAPK signaling pathway (P < 0.05). The regulatory role of miR-34a was more significant in the liver than in the brain of M. amblycephala. MiR-34a regulates glucose lipid homeostasis induced by high glucose diets by upregulating hepatic PI3K/Akt, FOXO, and TOR signaling pathways.
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