Nanoporous polymers are extensively coated on various substrates to deliver optical,permselective,or other functions.However,it remains desired to fast produce uniform nanoporous polymer coatings on substrates with co...Nanoporous polymers are extensively coated on various substrates to deliver optical,permselective,or other functions.However,it remains desired to fast produce uniform nanoporous polymer coatings on substrates with complex surfaces.Herein,by manipulating the interactions between block copolymers and selective solvents,we prepare repairable nanoporous polymers on arbitrary substrates.This is realized by an extremely simple sequential coating process:sequential coating of block copolymers and their swelling agents on substrate surfaces.The swelling agents are comprised of two solvents that swell the constituent blocks of the copolymers to different degrees,rapidly producing polymer coatings with uniform,interconnected,sub-50 nm pores.This sequential coating process is able to conformally build nanoporous polymers on nonplanar substrates with large lateral sizes and complex surface features,and also to in situ repair defects arising during usages.We further demonstrate that the nanoporous coatings show excellent antireflective and membrane separation performances.This sequential coating process is dictated by polymer–solvent interactions,and is expected to find applications in diverse fields for its simplicity,adaptability,and the capability to produce well-defined nanoporosities.展开更多
目的通过分析tsRNA在肺腺癌中的差异表达情况及其表达水平与患者预后的关系,进一步筛选并验证肺腺癌相关tsRNA,以了解其在肺腺癌发生和进展中的相关机制。方法基于计算医学中心数据库筛选出在肺腺癌组织和正常组织中差异表达的tsRNA;基...目的通过分析tsRNA在肺腺癌中的差异表达情况及其表达水平与患者预后的关系,进一步筛选并验证肺腺癌相关tsRNA,以了解其在肺腺癌发生和进展中的相关机制。方法基于计算医学中心数据库筛选出在肺腺癌组织和正常组织中差异表达的tsRNA;基于癌症基因组图谱(The Cancer Genome Atlas,TCGA)数据库分析tsRNA表达水平对肺腺癌患者预后的影响;基于TRFtarget2.0和tRFTar数据库预测靶基因;基于DAVID、KOBA KEGG在线网站进行基因本体论(Gene Ontology,GO)富集分析和京都基因和基因组百科全书(Kyoto Encyclopedia of Genes and Genomes,KEGG)通路分析;基于阿拉巴马大学伯明翰分校癌症数据分析门户(the University of Alabama at Birmingham CANcer data analysis Portal,UALCAN)分析靶基因在肺腺癌组织和正常组织中的表达水平。采用增殖实验、迁移实验、侵袭实验验证tRF-19-69M8LOJX在肺腺癌细胞中的生物学功能。结果与正常组织相比,tRF-19-69M8LOJX在肺腺癌组织中表达上调(log2FC=4.28,FDR<0.05)。高表达水平的tRF-19-69M8LOJX预示着更短的无进展生存期(HR=1.565,95%CI=1.142~2.145,P=0.005);过表达tRF-19-69M8LOJX促进A549细胞的增殖、迁移(P<0.001)和侵袭(P=0.009);COL1A1(P=0.002)和VCAN(P=0.022)在tRF-19-69M8LOJX过表达细胞模型中显著上调。结论tRF-19-69M8LOJX在肺腺癌组织的表达水平上调,与患者不良预后密切相关,可能在肺腺癌的发生发展中起着重要作用。展开更多
基金support from National Science Foundation of China(22438005)the Natural Science Foundation of Jiangsu Province(BE2022056-3)is gratefully acknowledged.
文摘Nanoporous polymers are extensively coated on various substrates to deliver optical,permselective,or other functions.However,it remains desired to fast produce uniform nanoporous polymer coatings on substrates with complex surfaces.Herein,by manipulating the interactions between block copolymers and selective solvents,we prepare repairable nanoporous polymers on arbitrary substrates.This is realized by an extremely simple sequential coating process:sequential coating of block copolymers and their swelling agents on substrate surfaces.The swelling agents are comprised of two solvents that swell the constituent blocks of the copolymers to different degrees,rapidly producing polymer coatings with uniform,interconnected,sub-50 nm pores.This sequential coating process is able to conformally build nanoporous polymers on nonplanar substrates with large lateral sizes and complex surface features,and also to in situ repair defects arising during usages.We further demonstrate that the nanoporous coatings show excellent antireflective and membrane separation performances.This sequential coating process is dictated by polymer–solvent interactions,and is expected to find applications in diverse fields for its simplicity,adaptability,and the capability to produce well-defined nanoporosities.
文摘目的通过分析tsRNA在肺腺癌中的差异表达情况及其表达水平与患者预后的关系,进一步筛选并验证肺腺癌相关tsRNA,以了解其在肺腺癌发生和进展中的相关机制。方法基于计算医学中心数据库筛选出在肺腺癌组织和正常组织中差异表达的tsRNA;基于癌症基因组图谱(The Cancer Genome Atlas,TCGA)数据库分析tsRNA表达水平对肺腺癌患者预后的影响;基于TRFtarget2.0和tRFTar数据库预测靶基因;基于DAVID、KOBA KEGG在线网站进行基因本体论(Gene Ontology,GO)富集分析和京都基因和基因组百科全书(Kyoto Encyclopedia of Genes and Genomes,KEGG)通路分析;基于阿拉巴马大学伯明翰分校癌症数据分析门户(the University of Alabama at Birmingham CANcer data analysis Portal,UALCAN)分析靶基因在肺腺癌组织和正常组织中的表达水平。采用增殖实验、迁移实验、侵袭实验验证tRF-19-69M8LOJX在肺腺癌细胞中的生物学功能。结果与正常组织相比,tRF-19-69M8LOJX在肺腺癌组织中表达上调(log2FC=4.28,FDR<0.05)。高表达水平的tRF-19-69M8LOJX预示着更短的无进展生存期(HR=1.565,95%CI=1.142~2.145,P=0.005);过表达tRF-19-69M8LOJX促进A549细胞的增殖、迁移(P<0.001)和侵袭(P=0.009);COL1A1(P=0.002)和VCAN(P=0.022)在tRF-19-69M8LOJX过表达细胞模型中显著上调。结论tRF-19-69M8LOJX在肺腺癌组织的表达水平上调,与患者不良预后密切相关,可能在肺腺癌的发生发展中起着重要作用。
