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- 저자 : Jiangnan Huang (검색결과 2 건)
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Construction of amphiphilic networks in blend membranes for CO2 separation
Jiangnan Wang,Xia Lv,Lu Huang,Long Li,Xueqin Li,Jinli Zhang 한국화학공학회 2023 Korean Journal of Chemical Engineering Vol.40 No.1
Blend membranes have attracted great attention because they can combine the advantages of different polymers. To investigate the effect of amphiphilic polymer on the separation performance of blend membranes, a series of blend membranes were designed and fabricated by blending an amphiphilic polymer of poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) into poly(ether-block-amide) (Pebax) polymer for CO2 separation. For the as-prepared Pebax/PEDOT:PSS blend membranes, the interconnected CO2-philic networks were constructed by hydrophilic anionic chains of PSS− for accelerating CO2 transport. Meanwhile, non-CO2-philic networks were constructed by the hydrophobic cationic chains of PEDOT+, which distributed around the PSS− chains to provide low friction diffusion for CO2. Therefore, the amphiphilic polymer of PEDOT:PSS was an excellent material for improving CO2 separation performance of blend membranes. The results showed that the Pebax/PEDOT:PSS blend membranes were endowed with excellent CO2 separation performance. Pebax/PEDOT:PSS blend membrane demonstrated the optimal separation performance with a CO2 permeability of 440.2±3.3 Barrer and a CO2/CH4 separation factor of 28±0.6. This study indicates that introducing the amphiphilic polymer into the blend membranes is an efficient strategy for gas separation.
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Xiaoping Li,Zongping Zhang,Jiangnan Huang,Lijie Su,Mengjin Zhu,Mei Yu 한국유전학회 2013 Genes & Genomics Vol.35 No.3
In pigs, complex molecular cross-talk between the mother and embryo(s) especially maternal immunotolerance at the maternal-fetal interface has been postulated to play important roles on embryo/fetal loss during the peri-implantation and midgestation. In this study, we collected the endometrium samples in implantation sites at gestational day 15 (gd15), 26 (gd26)) and 50 (gd50)from Meishan pigs to evaluate the contribution of the genes participating in immune response by using porcine Affymetrix GeneChip.The results showed that totally 68immune related genes showed significantly differential expression at three stages, and the expression of these genes underwent drastic changes during the peri-implantation period (between gd15 and gd26). The identified genes including IL6 proinflammatory cytokine family,inflammatory chemokines (CCL28), IGF/IGFBP system,growth factors (FGF7) and adhesion molecules (ITGB3,PCDH15) may prove valuable for further investigations of porcine prenatal mortality.
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