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Syntheses and cofluorescence of complexes of Eu(Ⅲ)/Y(Ⅲ) with terephthalic acid, 2-thenoyltrifluoroacetone and trioctylphosphine oxide

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中国有色金属学会会刊：英文版 2007年第3期17卷 638-643页

作者：赵学辉黄可龙刘素琴焦飞鹏刘志国胡舜钦李朝建 School of Chemistry and Chemical Engineering Central South University key laboratory of green packaging and Application biological nanotechnology of hunan Province Hunan University of Technology

A series of Eu( Ⅲ )/Y( Ⅲ ) complexes of terephthalic acid(TPA) with 2-thenoyltrifluoroacetone(HTTA) and trioctylphosphine oxide(TPPO) were synthesized. Compositions of these complexes are revealed to be Eu2(1-x)Y2x(TPA)(TTA)4- (TPPO)4 or Eu1-xYx(TPA)(TTA)(TPPO)2. Their IR spectra, fluorescent spectra and the thermal and optical stability were studied. The fluorescent excitation spectra of these complexes show more broad excitation bands than those of Eu2(TPA)3(TPPO)4 and Eu(TTA)3(TPPO)2 corresponding to their formations. In addition, both the binuclear complex EuY(TPA)(TTA)4(TPPO)4 and the chain complex Eu0.4Y0.6(TPA)(TTA)(TPPO)2 present higher thermal stability and better optical stability than the mononuclear complex Eu(TTA)3(TPPO)2 does. And their thermal and optical stabilities are preferably interpreted from the binuclear structure together with the chain polynuclear structure of the complexes. The fluorescence enhancement of cofluorescence Y3+ ions to the Eu(Ⅲ) complexes is clear. The optimum content of Y3+ is 0.6 (molar fraction) for the chain complexes Eu1-xYx(TPA)(TTA)- (TPPO)2 and 0.5 for the binuclear complexes Eu2(1-x)Y2x(TPA)(TTA)4(TPPO)4. The formation of polynuclear structure of the complex Eu1-xYx(TPA)(TTA)(TPPO)2 appears to be responsible for the good cofluorescence effect of Y3+ ions.

关键词：铕元素对酞酸 2-噻吩甲酰基三氟丙酮合成方法

Isolation of Mucor circinelloides Z4 and Mucor racemosus Z8 from heavy metal-contaminated soil and their potential in promoting phytoextraction with Guizhou oilseed rap

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Journal of Central South University 2015年第1期22卷 88-94页

作者：朱生翠汤建新曾晓希魏本杰杨少迪黄斌 hunan key laboratory of green packaging and biological nanotechnology Hunan University of Technology Meteorological Institute of Qinghai Province School of Metallurgy and Environment Central South University

Fungi Z4 and Z8, isolated from the heavy metal polluted soil, have strong resistance to Cd and Pb. The strains were identified on the base of their morphology and internal transcribed spacers(ITS) region. Pot experiments were conducted to study the effect of two strains(Z4 and Z8) on the growth and accumulation of Cd and Pb of Guizhou oilseed rape. The results show that strains Z4 and Z8 belong to Mucor circinelloides and Mucor racemosus, respectively. The heights of Guizhou oilseed rape inoculated with strain Z8 increase by 47.90% than the control. The highest fresh mass is found in the plant with Z4/Z8, which is enhanced by160.81%. Pot experiments show that Z4/Z8 inoculums can accelerate accumulation of heavy metals in the plant. The contents of Cd and Pb are increased by 117.60% and 63.48%, respectively. Meanwhile, the heavy metal concentrations in potting soil with the two strains are found to be lower than those of the control, and the concentrations of Cd and Pb are decreased by 60.57% and 27.12%,respectively.

关键词： phytoextraction fungus cadmium lead oilseed rape

Electrochemically and chemically in-situ interfacial protection layers towards stable and reversible Zn anodes

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Science Bulletin 2025年第1期70卷 104-124页

作者： Yuqing Yang Liping Qin Qiong He Chengjie Yin Yongpeng Lei Shuquan Liang Guozhao Fang School of Materials Science and Engineering Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan ProvinceCentral South UniversityChangsha 410083China College of biological and Chemical Engineering Guangxi University of Science and TechnologyNanning 545006China School of Chemical and Blasting Engineering Anhui University of Science and TechnologyHuainan 232001China State key laboratory of Powder Metallurgy Central South UniversityChangsha 410083China National Energy Metal Resources and New Materials key laboratory Central South UniversityChangsha 410083China

Aqueous zinc metal batteries(AZMBs)have received widespread attention for large-scale sustainable energy storage due to their low toxicity,safety,***,the technology and industrialization of AZMBs are greatly plagued by issues of Zn anode such as persistent dendrites and parasitic side reactions,resulting in rapid capacity degradation or battery *** or chemically in-situ interfacial protection layers have very good self-adaption features for stability and reversibility of Zn anodes,which can also be well matched to current battery ***,the in-situ interfacial strategies are far from the practical design for effective Zn ***,a targeted academic discussion that serves the development of this field is very ***,the comprehensive insights on electrochemically and chemically in-situ interfacial protection layers for Zn anode were proposed in this *** showcased a systematic summary of research advances,followed by detailed discussions on electrochemically and chemically in-situ interfacial protection *** importantly,several crucial issues facing in-situ interfacial protection strategies have been further put *** final section particularly highlighted a systematic and rigorous scheme for precise designing highly stable and reversible in-situ interface for practical zinc anodes.

关键词： In-situ strategy Interfacial layer Zn anode Solid electrolyte interphase Aqueous zinc metal batteries

Syntheses and applications of Eu(Ⅲ) complexes of 2-thienyltrifluoroacetonate, terephthalic acid and phenanthroline as light conversion agents

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Journal of Central South University of Technology 2007年第1期14卷 62-67页

作者：赵学辉黄可龙焦飞鹏杨幼平李朝建刘志国胡舜钦 School of Chemistry and Chemical Engineering Central South University key laboratory of green packaging and Application biological nanotechnology of hunan Province Hunan University of Technology

A series of europium（Ⅲ） complexes of 2-thienyltrifluoroacetonate （HTTA）, terephthalic acid （TPA） and phenanthroline （Phen） were synthesized. The new complexes Eu（TPA）（TTA）Phen and EUE（TPA）（TTA）4Phen2 were characterized by elemental analysis, IR spectrum, scanning electron microscope and thermal stability analysis. The results show that the thermal stability of the Eu（Ⅲ） complexes increases in the following order： the mononuclear complex Eu（TTA）3Phen, the binuclear complex EUE（TPA）（TTA）4Phen2, the chain polynuclear complex Eu（TPA）（TTA）Phen. And the formation of the binuclear/polynuclear structure of the new complexes appears to be responsible for the enhancement of their thermal and optical stability. In addition, The fluorescence excitation spectra of these new complexes show more broad excitation bands than that of the complex Eu（TTA）3Phen corresponding to their formation. The enhancement of Eu^3＋ fluorescence in the new complexes can be observed by the addition of Gd^3＋. The bright red luminescent plastics can be obtained when the complex EuGd（TPA）（TTA）4Phen2 is added above 0.5% （mass fraction）.

关键词： fluorescent properties europium terephthalic acid 2-thienyltrifluoroacetonate

Size-tunable synthesis of gold nanorods using pyrogallol as a reducing agent

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Science China Chemistry 2015年第11期58卷 1759-1765页

作者： Yuanfu Huang Kai Xia Nongyue He Zhuoxuan Lu Liming Zhang Yan Deng Libo Nie Economical Forest Cultivation and Utilization of 2011 Collaborative Innovation Center in hunan Province hunan key laboratory of green packaging and Application of biological nanotechnology hunan University of Technology State key laboratory of Bioelectronics School of biological Science and Medical Engineering Southeast University

A novel and facile seed-mediated method for the preparation of monodispersed gold nanorods(GNRs) is presented by introducing pyrogallol as a reductant. Fast Fourier transformation of high-resolution transmission electron microscopy reveals that the synthesized GNRs are single crystalline. The longitudinal surface plasmon resonance of GNRs can be finely tuned by varying silver ion concentrations or seed amounts. Also, both thick(diameter >30 nm) and thin(diameter <10 nm) GNRs with exceptional monodispersity can be well prepared by this method. These findings indicate that this method has a greater performance in controlling the morphology of GNRs than that of traditional approach with ascorbic acid as a reductant.

关键词： gold nanorods seed-mediated pyrogallol size tunability

Assembling Tunable Time-Resolved Fluorescence Layer onto Nano-Gold

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Journal of Rare Earths 2007年第2期25卷 152-157页

作者：贺全国张永强聂立波 Institute of Optoelectronic Materials and Devices South China University of Technology green packaging biological nanotechnology laboratory School of Packaging and Printing Hunan University of Technology

The assembling of a coating of time-resolved fluorescent chelator BSPDA （ abbreviated for 4, 7-bis （ sulfhydrylphenyl）-1, 10-phenanthroline-2, 9-dicarboxylic acid） onto a nano-gold layer was demonstrated. First, BSPDA was synthesized by simple procedures, and then an approach was developed to immobilize BSPDA onto the nano-gold layer deposited on a silane modified glass substrate, whereby europium ion （Ⅲ, Eu^3＋） was captured and released owing to the interactive process of complexation and dissociation between BSPDA functionalized coating and Eu^3＋ solution. The fluorescence spectra and related lifetimes were determined. Also, the BSPDA functionalized coating＇s specific complexation with Eu^3＋ on the BSPDA assembly layer and the nonspecific adsorption of Eu^3＋ on the nano-gold layer were compared. These results allowed a selective complexation of Eu^3＋ by assembling a BSPDA chelating layer on the nano-gold layer; thus, a tunable time-resolved fluorescent layer was covalently attached, The results of the nanoparticle assembling and probing （or labeling） processes to specific bio-systems were very interesting and had significant implications to time-resolved-fluorescence-based detection on biosensor surfaces such as DNA chip and to arrayed light display devices.

关键词： assembly 4, 7-bis ( sulfhydrylphenyl )-1,10-phenanthroline-2,9-dicarboxylic acid (BSPDA) europium time-resolved fluorescence nano-gold comolexation

Ni-Cr alloy electrodepositing technology on Fe substrate and coating performance

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Journal of Central South University of Technology 2007年第2期14卷 181-185页

作者：许利剑龚竹青汤建新贺全国何农跃杜晶晶 School of Metallurgical Science and Engineering Central South University green packaging and biological nanotechnology laboratory Hunan University of Technology

The Ni-Cr alloy electrodepositing technology on iron substrate in the chlorid-sulfate solution and the impacts of main processing parameters on coating composition were studied. The optimal Ni-Cr alloy electrodepositing conditions are that the cathode current density is 16 A/dm^2,the plating solution temperature is 30℃ and the pH value is 2.5. The bright, compact coating gained under the optimal conditions has good cohesion and 24.1% Cr content. The results show that the coating is composed of crystalline, the average grain size is 82 nm and the higher the Cr content of coating, the larger the rigidity, and the higher the corrosion resistance. The rigidity of coating reaches 78.6(HR30T) and the passivation area broadens to 1.4 V when the Cr content of coating is 24.1%.

关键词： electrodeposition plating Ni-Cr alloy corrosion resistance

In situ Synthesis of Oligonucleotide and Detection of Gold-label-silver-stain on PTFE Slices

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Chinese Journal of Chemistry 2005年第9期23卷 1247-1252页

作者：谭美军汤建新陈洪 key laboratory of green packaging and biological nanotechnology of hunan Province Hunan Polytechnic University Zhuzhou Hunan 412008 China key laboratory of Non-timber Breeding and Cultivation of Ministry of Forestry of China Central South Forestry University Zhuzhou Hunan 412006 China

Poly（tetrafluoroethylene）（PTFE） was treated with plasma in a mixture of nitrogen and hydrogen （1 ： 2 in volume）. X-ray photoelectron spectroscopy （XPS） demonstrated the success of amino group grafting. The as-treated PTFE slices were successively applied to the in situ synthesis of oligonucleotides. With the detection of gold-label-silver-stain, the hybridization signals were recorded with a gel document and analysis system. A target DNA concentration as low as 10 pmol/L could be detected. The complementary and mismatched sequences were distinguished clearly, and the ratio of background-subtracted gray scale values for perfect match ： 1 base mismatch ： 2 base mismatch ： 3 base mismatch was 72 ： 44.4 ： 22.5 ： 11.4. The sensitivity of in situ synthesis system was 1 order of magnitude higher than that of spotting system, and the signal of the former was about 1.5 times stronger than that of the latter under the same target DNA concentration. These plasma modified PTFE slices might open novel prospects for the in situ synthesis of DNA micro-arrays.

关键词： oligonucleotide gold-label-silver-stain in situ synthesis plasma poly(tetrafluoroethylene)

The aptamers generated from HepG2 cells

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Science China Chemistry 2017年第6期60卷 786-792页

作者： Rongrong Huang Zhongsi Chen Mei Liu Yan Deng Song Li Nongyue He State key laboratory of Bioelectronics School of Biological Science and Medical Engineering Southeast University Economical Forest Cultivation and Utilization of 2011 Collaborative Innovation Center in hunan Province Hunan Key Laboratory of Green Chemistry and Application of Biological Nanotechnology Hunan University of Technology

Liver cancer, as the second cause of cancer death all around the world, resulted in a series of chronic liver diseases. More than 80%of the patients cannot receive effective treatment because of their advanced disease or poor liver function. It is time to improve early clinical diagnosis and find optimal therapeutic treatments. As the tumor cells behave differently from the cell-surface molecules, it is necessary to find a highly specific probe. The aptamers, known as "chemical antibodies", can bind to their target molecules with high affinity and high specificity. The apatmers were obtained by Cell-SELEX, which was aimed at finding the aptamers against whole living cells. In the article, after 19 selections, the ssDNA pool was cloned and sequenced. After that, six aptamers were obtained, named apt_A to apt_F. By incubating the aptamers with different cells, except apt_E, the other aptamers showed high specificity. As for apt_E, which showed high affinity to several cancer cells, was a potential probe for the common protein presented by several different cancer cells. The equilibrium dissociation constants(Kd) were evaluated by measuring the flow cytometry signal that characterized the binding ability of aptamers to the target cells at a series of concentrations ranging from 46.3(4.5) nM to 199.4(44.2) nM, which exposed the high binding affinities of these aptamers. The research in the confocal fluorescence images further confirmed the specificity of these aptamers and the fact that the aptamers were combined with the targets on the cell-surface.

关键词： aptamers Cell-SELEX HepG2 cells