检索结果-南通市图书馆

Cd3(C3N3S3)2 coordination polymer/graphene nanoarchitectures for enhanced photocatalytic H2O2 production under visible light

在线全文

学校读者我要写书评

暂无评论

Science Bulletin 2017年第9期62卷 610-618页

作者： Jie Xu Zhenye Chen Hongwen Zhang Guibin lin huaxiang lin Xuxu Wang Jinlin Long State Key Laboratory of Photocatalysis on Energy and Environment College of ChemistryFuzhou UniversityFuzhou 350116China The Institute of Scientific and Industrial Research(SANKEN) Osaka UniversityOsaka 567-0047Japan

For a long time, there has been global concern over the environment and energy problems. Recently, the problems, which have brought about serious effect on the global living condition, have been in the ‘‘spotlight" and given impetus to the universal's efforts to head for the same direction: stem the worst warming and strive for the renewable energy source. Hydrogen peroxide(H_2O_2) is undoubtedly a good choice,which holds the promise as a clean, efficient, safe and transferrable energy carrier. Octahedral coordination polymer, Cd_3(C_3N_3S_3)_2, was found to be a robust photocatalyst for H_2O_2 generation under visible light irradiation. To further improve the H_2O_2 generation efficiency, adhering the octahedron to reduced graphene(rGO) was applied as the strategy herein. The study shows that by adhering Cd_3(C_3N_3S_3)_2to rGO, the formation of H_2O_2 is 2.5-fold enhanced and its deformation is concurrently suppressed. This work not only demonstrates the effectiveness of adhering Cd_3(C_3N_3S_3)_2polymer to rGO for the improvement of the polymer's photocatalytic performance, but also proposes a general way for the fabrication of graphene/coordination compound hybrids for maximizing their synergy.

关键词： Photocatalysis Coordination polymer rGO Cd3(C3N3S3)2 H2O2 generation

Rare loss-of-function variants in FLNB cause non-syndromic orofacial clefts

在线全文

学校读者我要写书评

暂无评论

Journal of Genetics and Genomics 2024年第2期51卷 222-229页

作者： Wenbin Huang Shiying Zhang Jiuxiang lin Yi Ding Nan Jiang Jieni Zhang huaxiang Zhao Feng Chen Department of Orthodontics Peking University School and Hospital of StomatologyBeijing100081China Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research College of StomatologyXi’an Jiaotong UniversityXi’anShaanxi710004China Guangdong Provincial High-level Clinical Key Specialty Guangdong Province Engineering Research Center of Oral Disease Diagnosis and TreatmentDepartment of OrthodonticsStomatological CenterPeking University Shenzhen HospitalShenzhen Peking University-The Hong Kong University of Science and Technology Medical CenterShenzhenGuangdong 518036China Department of Physiology and Pathophysiology School of Basic Medical SciencesXi'an Jiaotong UniversityXi'anShaanxi710049China National Center for Stomatology National Clinical Research Center for Oral DiseasesNational Engineering Laboratory for Digital and Material Technology of StomatologyBeijing Key Laboratory for Digital StomatologyResearch Center of Engineering and Technology for Computerized Dentistry Ministry of HealthNMPA Key Laboratory for Dental MaterialsBeijing100101China Central Laboratory Peking University School and Hospital of StomatologyBeijing100081China

Orofacial clefts (OFCs) are the most common congenital craniofacial disorders, of which the etiology is closely related to rare coding variants. Filamin B (FLNB) is an actin-binding protein implicated in bone formation. FLNB mutations have been identified in several types of syndromic OFCs and previous studies suggest a role of FLNB in the onset of non-syndromic OFCs (NSOFCs). Here, we report two rare heterozygous variants (p.P441T and p.G565R) in FLNB in two unrelated hereditary families with NSOFCs. Bioinformatics analysis suggests that both variants may disrupt the function of FLNB. In mammalian cells, p.P441T and p.G565R variants are less potent to induce cell stretches than wild type FLNB, suggesting that they are loss-of-function mutations. Immunohistochemistry analysis demonstrates that FLNB is abundantly expressed during palatal development. Importantly, Flnb^(−/−) embryos display cleft palates and previously defined skeletal defects. Taken together, our findings reveal that FLNB is required for development of palates in mice and FLNB is a bona fide causal gene for NSOFCs in humans.

关键词： Or ofacial clefts FLNB Loss-of-function mutati on Cleft palate Filamin B Actin flannent Knockout mouse

THE PREPARATION OF DOXORUBICIN-POLYVINYLPYRROLIDONE-NANOPARTICLES BY INVERSE EMULSION POLYMERIZATION

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Reactive Polymers 2006年第1期15卷 76-80页

作者： LV Fengjiao lin huaxiang XU Xiaoping CHEN Xiaogeng School of Chemistry and Chemical Engineering Fuzhou University Fuzhou 350002 China Fujian Provincial Hospital Fuzhou 350000 China

Doxorubicin-loaded nanoparticles, using doxorubicin （ADM） as model drug and vinylpyrrolidone as matrix, were prepared by inverse emulsion polymerization in the paper. The nanoparticles were characterized by telescope electron microscopy （TEM）, laser light scattering technique （LLS） and infrared spectrum （IR）. LLS test showed that the optimal prepared ADM-loaded nanoparticles had an average size 18.8nm and a narrow size distribution between 15nm and 32nm, which was consistent with the result obtained by TEM. And 1R results indicated that the nanoparticles consisted of ADM and polyvinylpyrrolidone （PVP）.

关键词： Nanoparticles Polyvinylpyrrolidone Inverse emulsion polymerization

Coating of Medical-Grade PVC Material with ZnO for Antibacterial Application

在线全文

学校读者我要写书评

暂无评论

Advances in Chemical Engineering and Science 2013年第4期3卷 236-241页

作者： huaxiang lin Luyao Ding Weihua Deng Xuxu Wang Jinlin Long Qun lin Research Institute of Photocatalysis Fujian Provincial Key Laboratory of Photocatalysis

The ZnO sol well-crystallized was prepared by the sol-gel method. The ZnO films were coated on medical-grade PVC surface by the improved organic-inorganic interfacial adhesion method. The physical and photocatalytic properties of the samples were characterized by XRD, SEM, DRS spectra and measured by the photodegradation reaction of Rho-damine B (RhB) and anti-bacteria for Escherichia coli (E. coli), respectively. The results show that pretreatment of PVC by the mix solution of THF-PVC helps to improve the amount and adhesion strength of ZnO suspension to PVC surface. The photocatalytic and antibacterial properties of the THF-ZnO/PVC film are better than that of the ZnO/PVC and neat PVC. Under UV irradiation, the THF-ZnO/PVC film shows the best antibacterial properties with 99% kill rate of bacteria.

关键词： ZnO PVC Photocatalysis Antibacterial

PREPARATION AND CHARACTERIZATION OF DOXORUBICIN-LOADED MAGNETIC ANTICANCER NANOPARTICLES

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Reactive Polymers 2007年第1期16卷 96-100页

作者： LV Fengjiao lin huaxiang CHEN Xiaogeng XU Xiaoping School of Chemistry and life sciences Quanzhou Normal University Quanzhou362000 China School of Chemistry and Chemical Engineering Fuzhou University Fuzhou 350002 China Fujian Provincial Hospital Fuzhou 350000 China

Doxorubicin（ADM）-loaded magnetic anticancer nanoparticles, using Fe3O4 as core, doxorubicin as model drug and polyvinylpyrrolidone （PVP） as matrix, were prepared by inverse emulsion polymerization. The experimental results showed that the average diameter of Fe3O4 particles was 19.8nm. The X-ray diffraction itzdicated that the prepared Fe3O4 particle was pure cubic Fe3O4, The results obtained by SEM showed the magnetic nanoparticles under optimal operating condition had a smooth spherical surface, LLS showed an average size of 78. 7nm. And IR results demonstrated that they consisted of ADM, PVP and Fe3O4.

关键词： Magnetic nanoparticles Polyvinylpyrrolidone Inverse emulsion polymerization.

一种新型聚γ谷氨酸-壳聚糖纳米可食膜的制备及特性研究

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中国食品学报 2015年第6期15卷 83-88页

作者：武红伟林彬彬汪少芸林华香福州大学生物科学与工程学院福州350108 光催化国家重点实验室培育基地福州350002

目的:安全无毒、可降解是消费者近年来对食品包装提出的新要求。以一种新型的天然聚合物聚γ谷氨酸为原料制备食品包装膜,通过添加壳聚糖与之形成聚电解质复合物,达到降低膜吸湿性,改善膜稳定性的目的。方法:通过考察CS与PGA的配比对复... 详细信息

目的:安全无毒、可降解是消费者近年来对食品包装提出的新要求。以一种新型的天然聚合物聚γ谷氨酸为原料制备食品包装膜,通过添加壳聚糖与之形成聚电解质复合物,达到降低膜吸湿性,改善膜稳定性的目的。方法:通过考察CS与PGA的配比对复合膜各物理性能指标,包括水分含量(WC,%)、可溶性物质含量(TSM,%)、透光率(Tr,%)、水蒸气透过率【WVP,(g·mm)/(m2·d·k Pa)】、颜色、抗拉强度(TS,MPa)以及断裂伸长率(EB,%)的影响,确定CS的最佳添加量。结果:当CS以1∶3的比例添加到PGA溶液中,制得的复合膜具较好的物理机械性能。其WC(17.78±1.10)%,Tr%(70.77±0.38)%,TSM(42.85±1.05)%,WVP(1.63±0.07)g·mm/(m2·d·k Pa),TS(8.69±2.27)MPa,EB%(46.24±5.37)%。

关键词：聚γ谷氨酸壳聚糖纳米可食膜

在线全文

学校读者我要写书评

暂无评论

TiO_2表面羟基及其性质

化学进展 2007年第5期19卷 665-670页

作者：林华香王绪绪付贤智福州大学光催化研究所福州350002

TiO2表面含有丰富的羟基基团,研究表面羟基的分布和性质对理解TiO2的吸附和光催化作用本质有非常重要的意义。本文简要总结了国内外近年来关于TiO2表面羟基的研究进展,如不同晶相结构TiO2的表面羟基状态及不同晶面上羟基的种类、表面吸... 详细信息

TiO2表面含有丰富的羟基基团,研究表面羟基的分布和性质对理解TiO2的吸附和光催化作用本质有非常重要的意义。本文简要总结了国内外近年来关于TiO2表面羟基的研究进展,如不同晶相结构TiO2的表面羟基状态及不同晶面上羟基的种类、表面吸附水对羟基分布的影响、表面羟基的光电化学性质及其在光催化反应中的作用等。最后对TiO2表面羟基研究中存在的问题进行了分析。

关键词：二氧化钛表面羟基光催化

Unveiling the oral-gut connection: chronic apical periodontitis accelerates atherosclerosis via gut microbiota dysbiosis and altered metabolites in apoE-/-Mice on a high-fat diet

在线全文

学校读者我要写书评

暂无评论

International Journal of Oral Science 2024年第03期 515-527页

作者： Guowu Gan Shihan lin Yufang Luo Yu Zeng Beibei Lu Ren Zhang Shuai Chen huaxiang Lei Zhiyu Cai Xiaojing Huang Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatology Key Laboratory of Fujian College and University School and Hospital of Stomatology Fujian Medical University Institute of Stomatology & Research Center of Dental and Craniofacial Implants School and Hospital of Stomatology Fujian Medical University Department of Stomatology Fujian Medical University Union Hospital

The aim of this study was to explore the impact of chronic apical periodontitis(CAP) on atherosclerosis in apoE-/-mice fed high-fat diet(HFD). This investigation focused on the gut microbiota, metabolites, and intestinal barrier function to uncover potential links between oral health and cardiovascular disease(CVD). In this study, CAP was shown to exacerbate atherosclerosis in HFD-fed apoE-/-mice, as evidenced by the increase in plaque size and volume in the aortic walls observed via Oil Red O staining. 16S rRNA sequencing revealed significant alterations in the gut microbiota, with harmful bacterial species thriving while beneficial species declining. Metabolomic profiling indicated disruptions in lipid metabolism and primary bile acid synthesis, leading to elevated levels of taurochenodeoxycholic acid(TCDCA), taurocholic acid(TCA), and tauroursodeoxycholic acid(TDCA). These metabolic shifts may contribute to atherosclerosis development. Furthermore, impaired intestinal barrier function, characterized by reduced mucin expression and disrupted tight junction proteins, was observed. The increased intestinal permeability observed was positively correlated with the severity of atherosclerotic lesions, highlighting the importance of the intestinal barrier in cardiovascular *** conclusion, this research underscores the intricate interplay among oral health, gut microbiota composition, metabolite profiles,and CVD incidence. These findings emphasize the importance of maintaining good oral hygiene as a potential preventive measure against cardiovascular issues, as well as the need for further investigations into the intricate mechanisms linking oral health, gut microbiota, and metabolic pathways in CVD development.

关键词：

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

无溶剂复合常见异常工艺现象分析和预防

包装前沿 2018年第2期 35-37页

作者：林华祥广州通泽机械有限公司

本文主要分析了无溶剂复合工艺常见工艺问题，包括白点和气泡、复合膜剥离力不够、复合膜摩擦系数增加、印刷油墨被“晕染”等问题产生的原因及控制方法，并提出企业在应用无溶剂复合工艺时，有任何变化，都必须先进行工艺试验，以便发... 详细信息

本文主要分析了无溶剂复合工艺常见工艺问题，包括白点和气泡、复合膜剥离力不够、复合膜摩擦系数增加、印刷油墨被“晕染”等问题产生的原因及控制方法，并提出企业在应用无溶剂复合工艺时，有任何变化，都必须先进行工艺试验，以便发现潜在问题，提早调整解决，确保批量生产的顺利和高效。

关键词：无溶剂复合工艺问题预防异常复合工艺摩擦系数印刷油墨工艺试验