Ternary blending as one of the most successful strategies has achieved continuous performance breakthroughs in organic solar cells(OSCs)over the past few years.Here,a small molecule featuring a dithieno[3,2-f:2′,3′-...Ternary blending as one of the most successful strategies has achieved continuous performance breakthroughs in organic solar cells(OSCs)over the past few years.Here,a small molecule featuring a dithieno[3,2-f:2′,3′-h]phthalimide derivative as the intermediate unit,named DTP-C8-R,is designed and utilized as the third component to construct ternary OSCs(TOSCs).The increased molecular packing of L8-BO as well as the charge transfer excitons between PM6 and DTP-C8-R lead to a very low nonradiative energy loss of 0.179 eV and a high open-circuit voltage(VOC)of 0.910 V in the TOSCs based on the PM6:L8-BO host blend.Moreover,the DTP-C8-R:PM6:L8-BO film(0.05:0.95:1.2,w/w)possesses better fibrous nanophase separation and the enhancedπ-πstacking ordering of the acceptors with a larger crystal coherence length compared with the PM6:L8-BO blend film,so the TOSCs present more efficient exciton dissociation,longer carrier lifetime,faster carrier transport and less charge recombination.It boosts the power conversion efficiency to 19.22%with a short-circuit current density of 27.10 mA cm-2.This work demonstrates that the small molecule based on a dithieno[3,2-f:2′,3′-h]phthalimide derivative as the minor component is an executable strategy to achieve high-performance TOSCs with high VOC.展开更多
为提升瓦斯抽采利用率、促进煤矿安全生产,采用介质阻挡放电(DBD)试验系统对CH4-O2-N2-H2O反应体系进行低温等离子体转化研究,分析水蒸气与CH4物质的量比、O2/N2物质的量比、放电电压、放电频率,以及气体总流量对CH4转化率及主要产物产...为提升瓦斯抽采利用率、促进煤矿安全生产,采用介质阻挡放电(DBD)试验系统对CH4-O2-N2-H2O反应体系进行低温等离子体转化研究,分析水蒸气与CH4物质的量比、O2/N2物质的量比、放电电压、放电频率,以及气体总流量对CH4转化率及主要产物产率的影响。结果表明:CH4-O2-N2-H2O反应体系DBD的主要产物为H2、CO、CO2、C2H2、C2H4、C2H6和CH3OH;反应参数对CH4转化率和H2、CO、CO2、C2H6、CH3OH产率影响较为显著,而对C2H2、C2H4产率影响不显著;CH4转化率及主要产物产率均在放电频率为9.8 k Hz时取得最大值。展开更多
Two unusual one-dimensional(1-D) compounds,viz.[Co(Medpq)(QUI)·H2O]2n· 2.4nH2O 1 and [Cd(Medpq)(QUI)·H2O]n·nH2O 2,were synthesized by the combination of two different metallic salts and o...Two unusual one-dimensional(1-D) compounds,viz.[Co(Medpq)(QUI)·H2O]2n· 2.4nH2O 1 and [Cd(Medpq)(QUI)·H2O]n·nH2O 2,were synthesized by the combination of two different metallic salts and organic ligands,namely 2,3-pyridinedicarboxylic acid(H2QUI) and 2-methyldipyrido[3,2-f:2',3'-h]quinoxaline(Medpq) ligand.The compounds were characterized by elemental analyses,TG,fluorescent emission and single-crystal X-ray diffraction analyses.展开更多
[目的]探究miR-552-3p调节SETD2对肾细胞癌786-O细胞转移活性的影响。[方法]通过实时的荧光定量PCR方式对正常肾小管上皮细胞株HK-2细胞、透明细胞肾细胞癌细胞株786-O细胞、RCC23细胞、Caki-2细胞中的miR-552-3p与SETD2表达情况进行检...[目的]探究miR-552-3p调节SETD2对肾细胞癌786-O细胞转移活性的影响。[方法]通过实时的荧光定量PCR方式对正常肾小管上皮细胞株HK-2细胞、透明细胞肾细胞癌细胞株786-O细胞、RCC23细胞、Caki-2细胞中的miR-552-3p与SETD2表达情况进行检测。将786-O细胞分为miR NC组、miR-552-3p inhibitor组、pcDNA3.1 NC组以及pcDNA3.1 SETD2组。通过CCK-8实验分析786-O细胞增殖能力;Transwell实验和划痕实验分析786-O细胞侵袭和迁移能力;荧光素酶报告基因实验分析786-O细胞中miR-552-3p与SETD2的靶向关系。[结果]与正常肾小管上皮细胞株相比,miR-552-3p在透明细胞肾细胞癌细胞株中高表达(0.22±0.03 vs 0.92±0.05 vs 0.87±0.06 vs 0.88±0.11),而SETD2在透明细胞肾细胞癌细胞株中低表达(0.93±0.05 vs 0.31±0.03 vs 0.32±0.07 vs 0.29±0.06)。与miR NC组比较,miR-552-3p inhibitor组的786-O细胞的增殖活性降低(2.21±0.08 vs 1.36±0.11)、侵袭和迁移能力降低(103.19±9.38 vs 52.09±5.76个;73.19%±6.35%vs 22.12%±5.21%)。与pcDNA3.1 NC组比较,pcDNA3.1 SETD2组的786-O细胞的增殖活性降低、侵袭和迁移能力降低(P<0.05)。荧光素酶活性测定显示,和miR NC组比较,在SETD2-WT组中转染miR-552-3p mimic后荧光素酶活性降低(P<0.05)。[结论]miR-552-3p在透明细胞肾细胞癌细胞中高表达,而SETD2低表达。miR-552-3p能够抑制透明细胞肾细胞癌细胞的体外增殖、迁移和侵袭,并且这一作用与miR-552-3p抑制SETD2的表达相关。展开更多
基金financially supported by the National Natural Science Foundation of China(51873177,52303252)the Natural Science Foundation of Hunan Province(2024JJ4039)+1 种基金the Advanced Photoelectricity and Supramolecular Functional Materials of the Ministry of Education(IRT-17R90)the Hunan 2011 Collaborative Innovation Centre of Chemical Engineering&Technology with Environmental Benignity and Effective Resource Utilization。
摘要Ternary blending as one of the most successful strategies has achieved continuous performance breakthroughs in organic solar cells(OSCs)over the past few years.Here,a small molecule featuring a dithieno[3,2-f:2′,3′-h]phthalimide derivative as the intermediate unit,named DTP-C8-R,is designed and utilized as the third component to construct ternary OSCs(TOSCs).The increased molecular packing of L8-BO as well as the charge transfer excitons between PM6 and DTP-C8-R lead to a very low nonradiative energy loss of 0.179 eV and a high open-circuit voltage(VOC)of 0.910 V in the TOSCs based on the PM6:L8-BO host blend.Moreover,the DTP-C8-R:PM6:L8-BO film(0.05:0.95:1.2,w/w)possesses better fibrous nanophase separation and the enhancedπ-πstacking ordering of the acceptors with a larger crystal coherence length compared with the PM6:L8-BO blend film,so the TOSCs present more efficient exciton dissociation,longer carrier lifetime,faster carrier transport and less charge recombination.It boosts the power conversion efficiency to 19.22%with a short-circuit current density of 27.10 mA cm-2.This work demonstrates that the small molecule based on a dithieno[3,2-f:2′,3′-h]phthalimide derivative as the minor component is an executable strategy to achieve high-performance TOSCs with high VOC.
摘要为提升瓦斯抽采利用率、促进煤矿安全生产,采用介质阻挡放电(DBD)试验系统对CH4-O2-N2-H2O反应体系进行低温等离子体转化研究,分析水蒸气与CH4物质的量比、O2/N2物质的量比、放电电压、放电频率,以及气体总流量对CH4转化率及主要产物产率的影响。结果表明:CH4-O2-N2-H2O反应体系DBD的主要产物为H2、CO、CO2、C2H2、C2H4、C2H6和CH3OH;反应参数对CH4转化率和H2、CO、CO2、C2H6、CH3OH产率影响较为显著,而对C2H2、C2H4产率影响不显著;CH4转化率及主要产物产率均在放电频率为9.8 k Hz时取得最大值。
摘要Two unusual one-dimensional(1-D) compounds,viz.[Co(Medpq)(QUI)·H2O]2n· 2.4nH2O 1 and [Cd(Medpq)(QUI)·H2O]n·nH2O 2,were synthesized by the combination of two different metallic salts and organic ligands,namely 2,3-pyridinedicarboxylic acid(H2QUI) and 2-methyldipyrido[3,2-f:2',3'-h]quinoxaline(Medpq) ligand.The compounds were characterized by elemental analyses,TG,fluorescent emission and single-crystal X-ray diffraction analyses.
摘要[目的]探究miR-552-3p调节SETD2对肾细胞癌786-O细胞转移活性的影响。[方法]通过实时的荧光定量PCR方式对正常肾小管上皮细胞株HK-2细胞、透明细胞肾细胞癌细胞株786-O细胞、RCC23细胞、Caki-2细胞中的miR-552-3p与SETD2表达情况进行检测。将786-O细胞分为miR NC组、miR-552-3p inhibitor组、pcDNA3.1 NC组以及pcDNA3.1 SETD2组。通过CCK-8实验分析786-O细胞增殖能力;Transwell实验和划痕实验分析786-O细胞侵袭和迁移能力;荧光素酶报告基因实验分析786-O细胞中miR-552-3p与SETD2的靶向关系。[结果]与正常肾小管上皮细胞株相比,miR-552-3p在透明细胞肾细胞癌细胞株中高表达(0.22±0.03 vs 0.92±0.05 vs 0.87±0.06 vs 0.88±0.11),而SETD2在透明细胞肾细胞癌细胞株中低表达(0.93±0.05 vs 0.31±0.03 vs 0.32±0.07 vs 0.29±0.06)。与miR NC组比较,miR-552-3p inhibitor组的786-O细胞的增殖活性降低(2.21±0.08 vs 1.36±0.11)、侵袭和迁移能力降低(103.19±9.38 vs 52.09±5.76个;73.19%±6.35%vs 22.12%±5.21%)。与pcDNA3.1 NC组比较,pcDNA3.1 SETD2组的786-O细胞的增殖活性降低、侵袭和迁移能力降低(P<0.05)。荧光素酶活性测定显示,和miR NC组比较,在SETD2-WT组中转染miR-552-3p mimic后荧光素酶活性降低(P<0.05)。[结论]miR-552-3p在透明细胞肾细胞癌细胞中高表达,而SETD2低表达。miR-552-3p能够抑制透明细胞肾细胞癌细胞的体外增殖、迁移和侵袭,并且这一作用与miR-552-3p抑制SETD2的表达相关。