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Macromol. Chem. Phys. 2/2015

Macromolecular Chemistry and Physics 2015年第2期216卷

作者： Qiulin Yuan Dan Liu Yong Deng Ying Ling Haoyu Tang Key Laboratory of Polymeric Materials and Application Technology of Hunan Province Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province College of Chemistry Xiangtan University Xiangtan Hunan 411105 China

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Graphene Films Synthesized by Ultrasonic Spray Pyrolysis

Graphene Films Synthesized by Ultrasonic Spray Pyrolysis

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2014中国功能材料科技与产业高层论坛

作者： Wei Liu Xiaohua Chen Weina Deng Aiping Hu Qunli Tang College of Materials Science and Engineering Hunan Province Key Laboratory for Spray Deposition Technology and ApplicationHunan University

Graphene films were synthesized by ultrasonic spray *** well-graphitized Graphene films with different layers from 2 to 8 have been obtained on nickel foam substrate by using ethanol *** images show continual large area graphene films covered whole nickel foam surface,while Raman spectra confirm that as-grown multi-to few-layer graphene films with high quality were obtained at different *** results further show high degree of crystallinity of transferred graphene *** procedure described can be scaled up for large-scale production at low cost.

关键词： Ultrasonic spray pyrolysis graphene films liquid precursor

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Syntheses and Co-Fluorescence of Complexes of Eu (III)/Gd (III) with Thienyltrifluoroacetonate, Terephthalic Acid and Phenanthroline

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American Journal of Analytical Chemistry 2014年第17期5卷 1313-1321页

作者： Xuehui Zhao Zhongliang Hu Haiyun Jiang Feipeng Jiao Zhengxiang Wang Key Laboratory of Green Packaging and Application Biological Nanotechnology of Hunan Province Hunan University of Technology Zhuzhou China College of Chemistry and Chemical Engineering Central South University Changsha China

A series of complexes of europium (III)/gadolinium (III) with 2-thienyltrifluoroacetonate (HTTA), terephthalic acid (TPA) and phenanthroline (Phen) were synthesized by coprecipitation. The resulting complexes including Eu2(TPA)(TTA)4Phen2, Eu1.4Gd0.6(TPA)(TTA)4Phen2, Eu1.0Gd1.0(TPA)(TTA)4Phen2 and Eu0.8Gd1.2(TPA)(TTA)4Phen2 were characterized by elemental analysis, IR spectroscopy and thermal stability analysis. The results of analysis indicate that the complexes obtained have similar binuclear structure with each other. The thermal stability analysis indicates that the complexes Eu2(TPA)(TTA)4Phen2and Eu1.0Gd1.0(TPA)(TTA)4Phen2 possess good thermal stability, which melt at ~241°C and decompose at ~370°C - 430°C corresponding to the formation of the complexes. The fluorescence spectra of Eu2(1-x)Gd2x(TPA)(TTA)4Phen2 (x = 0 - 1) complex powders and their doped silica gels were studied. The co-fluorescence effect of Gd3+ ions in complex powders is different from that of their doped silica gels. The optimum concentration of Gd3+ for complex powders and their doped silica gels is 0.5 and 0.3 (molar fraction), respectively. The co-fluorescence distinction of Gd3+ ions for complex powders and their doped silica gels is preferably interpreted from the proposed binuclear structure together with monomolecular compositions of the complexes for the first time. Both intermolecular energy transfer and intra molecular energy transfer in cross binuclear monomolecular EuGd(TPA)(TTA)4Phen2 are thought to be responsible for the co-fluorescence effect of the complex powders;yet only the latter is thought to be responsible for the co-fluorescence effect in silica gels, for the complex molecules in this case are isolated from each other.

关键词： Co-Fluorescence Europium Terephthalic Acid 2-Thienyltrifluoroacetonate Silica Gel

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The Influence of BCL2 Promoter Polymorphism(-938C>A) on Cervical Cancer Risk and Prognosis in Chinese Women

The Influence of BCL2 Promoter Polymorphism(-938C>A) on Cerv...

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2015 Asia-Pacific Biological Engineering and Biomedical Conference(BEBC 2015)

作者： Pei Jiang Yanchao Liang zhiming Liu Wen Li Xiaoxi Zeng Jianxin Tang Key Laboratory of Green Packaging and Application of Biological Nanotechnology of Hunan Province Hunan University of Technology Department of respiration The Central Hospital of Zhuzhou City

Aims: Expression of the B-cell lymphoma 2(Bcl-2) has been shown to be associated with unfavorable outcome in patients with cervical cancer. However, to our knowledge there is currently no information on the role of the BCL-2-938C/A single nucleotide polymorphism in cervical cancer cases. Therefore, we investigated influence of the BCL-2-938C/A polymorphism on cervical cancer risk and prognosis in Chinese population. Methods: We genotyped BCL-2(-938C>A) polymorphism of peripheral blood DNA from160 cervical cancer patients and 225 healthy controls. Genotyping was confirmed by polymerase chain reaction-restriction fragment length polymorphism(PCR-RFLP) and direct DNA sequencing. Results: There was no difference in the distribution of BCL-2 genotypes and frequencies of the alleles C(50.9% versus 46.7%) and A(49.1% versus 53.3%) in the cervical cancer patients and controls, respectively, suggesting that genotypes of this polymorphism do not increase the susceptibility to cervical cancer. However, there was a significant association of the BCL-2(-938C>A) polymorphism with Lymph node metastasis in cervical cancer cases. Patients harboring the CC genotype showed a significantly higher risk of lymph node metastasis with OR of 4.327, 95% CI 1.654-11.322. Conclusion: To our knowledge this is the first report documenting that the BCL2(-938C>A) polymorphism as an indicator of a high-risk group within cervical cancer patients with lymph node metastasis.

关键词： HPV The Influence of BCL2 Promoter Polymorphism on Cervical Cancer Risk and Prognosis in Chinese Women

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Cadmium adsorption by Rhizopus sp. using magnetic alginate beads as biomass carrier

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Journal of Bionanoscience 2014年第3期8卷 226-229页

作者： Zhang, Fengqin Li, Xiaolong Li, Taotao Ma, Huagui Sauli, Elingarami Economical Forest Cultiv. and Utiliz. of 2011 Collab. Innov. Ctr. in Hunan Province Hunan Key Laboratory of Green Packaging and Application of Biological Nanotechnology Hunan University of Technology Zhuzhou412008 China State Key Laboratory of Bioelectronics Southeast University Nanjing210096 China

The adsorptive removal of Cadmium by magnetic alginate beads attaching Rhizopus sp. was investigated. Rhizopus sp. immobilized on the surface of magnetic alginate beads was confirmed with Scanning electron microscope. Under the optimal conditions (pH 6.5, initial Cd concentration of 200 μg/L, magnetic alginate bead dosage of 15 g/L), 89% of Cd was removed in this study. Addition of Pb can reduce the Cd removal rate under the same condition. The result indicates that magnetic alginate beads attaching Rhizopus sp. might have promising application in metal removal from wastewater. Copyright © 2014 American Scientific Publishers

关键词： Magnetite

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Numerical Modeling of Thermal Conductivity of Diamond Particle Reinforced Aluminum Composite

Numerical Modeling of Thermal Conductivity of Diamond Partic...

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第八届中国功能材料及其应用学术会议

作者： YANG Wu-lin PENG Kun ZHU Jia-jun LI De-yi ZHOU Ling-ping College of Materials Science and Engineering Hunan University Hunan Province Key Laboratory for Spray Deposition Technology and Application Hunan University

ISBN: (纸本)9783037859698

In the present work,the finite element method is employed to predict the effective thermal conductivity of diamond particle reinforced aluminum *** common finite element commercial software ANSYS is used to for this numerical analysis.A body-centered cubic particle arrangement model are constructed to simulate the microstructure of the composite with 60 vol.%*** effect of particle size and inhomogeneous interfacial conductance on the thermal conductivity of diamond particles reinforced aluminum composite is ***-octahedral particles are assumed and interfacial thermal conductance between different diamond faces and aluminum matrix is implemented by real constants of contact *** results show that the numerical results using present model agree reasonably well with the *** into consideration the interfacial thermal conductance,the influence of particle size on total thermal conductivity of composite is obvious,the larger size particles tend to meet requirement of the high thermal conductivity of *** the experimental result with the inhomogeneous interfacial thermal conductance model,the evolution of the composite thermal property is profound studied.

关键词： Finite element method Composite materials Thermal properties Interfaces

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Spatial Distribution and Contamination Evaluation of Heavy Metals in the Soil at the Downwind Direction of One Smelter beside Xiangjiang River

Spatial Distribution and Contamination Evaluation of Heavy M...

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The 12th International Symposium on East Asian Recycling technology(第十二届东亚资源回收技术国际研讨会)

作者： Benjie Wei Xiaoxi Zeng Shengcui Zhu Shaodi Yang Jianxin Tang Key Laboratory of Green Packaging and Application of Biological Nanotechnology of Hunan Province Hunan University of TechnologyZhuzhou 412007China

Remediation of soil contaminated by heavy metals is a complex *** ways should be used in different contamination *** order to safely use cropland and provide a scientific basis for remediation the contaminated soil,the vertical contents of six heavy metals(Cd,Pb,Cr,Cu,Zn and Ni)were detected,which were collected in the depth of 0-100 cm soil at the downwind direction of smelter beside Xiangjiang River.

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Isolation, Identification and Study on Siderophore-producing Ability of Heavy Metal Mobilizing Microbial Pseudomonas sp.K1 from Contaminated Soils

Isolation, Identification and Study on Siderophore-producing...

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The 12th International Symposium on East Asian Recycling technology(第十二届东亚资源回收技术国际研讨会)

作者： Benjie Wei Xiaoxi Zeng Shengcui Zhu Jianxin Tang Key Laboratory of Green Packaging and Application of Biological Nanotechnology of Hunan Province Hunan University of TechnologyZhuzhou 412007China

The cadmium(Cd)and lead(Pb)resistant strains have been isolated from heavy metal contaminated soil around one of the smelters beside Xiangjiang River in *** strains can grew well in the concentration of 2 mmol&#18... 详细信息

关键词： Siderophore-producing bacteria Mobilization Heavy metal-resistant bacteria Pseudomonas sp 16S rDNA

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Study on the potential of antifungal activity of essential oils against fungal pathogens of fruits and vegetables

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Journal of Chemical and Pharmaceutical Research 2013年第12期5卷 443-446页

作者： Deng, Jing Li, Wen Peng, Xi Lin Hao, Xi Hai College of Packaging and Material Engineering Hunan University of Technology Zhuzhou China Key laboratory of Green packaging and Application of Biological Nanotechnology of Hunan Province Hunan University of Technology Zhuzhou China

This research was undertaken to assess the in vitro antifungal potential of the essential oils of clove, cinnamon, aniseed, green prickleyash, Pricklyash peel, cumin and fennel against the five major fungal pathogens of fruits and vegetables using the method of inhibitory zone, the inhibition to the mycelial growth and the minimal inhibitory concentration.i.e, Penicillium italicum, penicillium expansum, Monilinia fructigena, Penicillium sp. and Fusarium spp. The results indicated that clove had significant antifungal activity to all strains, especially against Penicillium italicum. Cinnamon and aniseed had strong antifungal activity to all strains tested except Fusarium spp., especially against Monilinia fructigena. Moreover, Clove could inhibit mycelial growth of all pathogens completely and the minimal inhibitory concentration of clove was less than or equal to 0.5% (v/v). The present results demonstrated that clove oil could be potential sources of natural fungicides to control certain important fungal pathogens of fruits and vegetables.

关键词： Essential oils

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First-principles investigation of cohesive energy and electronic structure in vanadium phosphides

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Journal of Central South University 2012年第7期19卷 1796-1801页

作者：杨振华王先友苏旭平 Faculty of Materials Optoelectronics and PhysicsXiangtan University Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education(Xiangtan University) School of Chemistry Xiangtan University Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education(Xiangtan University) Key Laboratory of Materials Design and Preparation Technology of Hunan Province(Xiangtan University)

First-principles calculations based on the density-functional theory were employed to study the crystal structure of vanadium phosphide compounds,such as V3P,V2P,VP,VP2 and VP4. Cohesive energy of five types of vanadium phosphide compounds was calculated to assess their structural stability. The charge density distribution and densities of states of vanadium phosphides were discussed to study further their electronic structures. The results show that the structure of metal-rich compounds is considerably more stable than the phosphorus-rich compositions,and covalent bond exists between the V and P atoms of V3P,V2P,VP,VP2 and VP4.

关键词： first-principles calculations stability cohesive energy covalent bond

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