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Chalcone-Benzotriazole Conjugates as New Potential Antimicrobial Agents： Design, Synthesis, Biological Evaluation and Synergism with Clinical Drugs

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Chinese Journal of Chemistry 2017年第4期35卷 483-496页

作者： Hanbo Liu Lavanya Gopala Srinivasa Rao Avula Ponmani Jeyakkumar Xinmei Peng Chenghe Zhou Rongxia Geng institute of Bioorganic & Medicinal Chemistry Key Laboratory of Applied Chemistry of Chongqing Municipality School of Chemistry and Chemical Engineering Southwest University Chongqing 400715 China School of Chemistry and chemical engineering Qiannan Normal University for Nationalities Duyun Guizhou 558000 China

A series of chalcone-benzotriazole conjugates as new potential antimicrobial agents were synthesized and char- acterized by ^1H NMR, ^13C NMR, IR and HRMS spectra. Antimicrobial assay manifested that some target com- pounds gave moderate to good antibacterial and antifungal activities. The N- 1 derived benzotriazole 5e and N-2 de- rived benzotriazole 6a exhibited valuable inhibitory efficacy against some tested strains. Especially, derivative 6a gave superior antifungal efficacies against C. utilis, S. cerevisiae and A. flavus （MIC^0.01, 0.02, 0.02 gmol/mL, respectively） to Fluconazole. The drug combination of compound 5e or 6a with antibacterial Chloromycin, Nor- floxacin and antifungal Fluconazole respectively showed stronger antimicrobial efficiency with less dosage and broader antimicrobial spectrum than their separated use alone. The preliminary interaction with calf thymus DNA revealed that compound 6a could intercalate into DNA to form 6a-DNA supramolecular complex which might be a factor to exert its powerful bioactivity. Molecular docking study indicated strong binding of compound 6a with DNA gyrase. The structural parameters such as molecular orbital energy and molecular electrostatic potential of compound 6a were also investigated, which provided better understanding for its good antimicrobial activity.

关键词： chalcone benzotriazole antimicrobial calf thymus DNA DNA gyrase

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Single-wall carbon nanotube-containing cathode interfacial materials for high performance organic solar cells

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Science China Chemistry 2021年第4期64卷 565-575页

作者： Fei Pan Song Bai Tianhao Liu Dianyong Tang Xian Wei Xiwen Chen Menglan Lv Yongfang Li School of chemical engineering Guizhou Institute of TechnologyGuiyang 550003China Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China Chongqing engineering Laboratory of Targeted and Innovative Therapeutics International Academy of Targeted Therapeutics and InnovationChongqing University of Arts and SciencesChongqing 402160China Guangzhou Polyforte chemical Technology Co.LTD Guangzhou 510520China School of chemical Science University of Chinese Academy of SciencesBeijing 100049China School of Chemistry and chemical engineering Guizhou UniversityGuiyang 550025China

Water/alcohol soluble cathode interfacial materials(CIMs)are playing important roles in optoelectronic devices such as organic light emitting diodes,perovskite solar cells and organic solar cells(OSCs).Herein,n-doped solution-processable single-wall carbon nanotubes(SWCNTs)-containing CIMs for OSCs are developed by dispersing SWCNTs to the typical CIMs perylene diimide(PDI)derivatives PDIN and *** Raman and X-ray photoelectron spectroscopy(XPS)measurement results illustrate the ndoped behavior of SWCNTs by PDIN/PDINO in the blend *** blended and n-doped SWCNTs can tune the work function and enhance the conductivity of the PDI-derivative/SWCNT(PDI-CNT)composite CIMs,and the composite CIMs can regulate and down-shift the work function of cathode,reduce the charge recombination,improve the charge extraction rate and enhance photovoltaic performance of the *** power conversion efficiency(PCE)of 17.1%and 17.7%are obtained for the OSCs based on PM6:Y6 and ternary PM6:Y6:PC_(71) BM respectively with the PDI-CNTcomposites *** results indicate that the ndoped SWCNT-containing composites,like other n-doped nanomaterials such as zero dimensional fullerenes and two dimensional graphenes,are excellent CIMs for OSCs and could find potential applications in other optoelectronic devices.

关键词： organic solar cells cathode interfacial materials n-doped single wall carbon nanotubes silver electrode

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Synthesization and crystallization mechanism of nano-scale γ-AlOOH with various morphologies

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International Journal of Minerals,Metallurgy and Materials 2010年第3期17卷 376-379页

作者： Bao-hong Hao Ke-ming Fang Lan Xiang Qiang Liu School of metallurgical and Ecological engineering University of Science and Technology Beijing Beijing 100083 China Department of Mechanical engineering Beijing Institute of Petrochemical Technology Beijing 102617 China Department of chemical engineering T singhua University Beijing 100084 China

Nano-scale γ-AIOOH with various morphologies, such as whisker, bar, ball, and sheet, was synthesized successfully and control- lably through a facile hydrothermal method just by adjusting the pH value of the solvent. Based on the analysis of the experimental data, the growth mechanism of nano-scale γ-AlOOH in the hydrothermal process was established. It is proposed that the growth unit and the growth direction are determined by the pH value of the solution and the growth unit, respectively. One-dimensional γ-AlOOH, such as whisker and bar, is formed in lower pH ranges, while two-dimensional γ-AlOOH sueli as sheet is formed only in high pH environment following the plane expansion crystallization mechanism.

关键词： boehmite morphology control crystallization mechanism growth unit aggregate

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Zircon U–Pb dating and whole-rock elemental geochemistry of the Shazi anatase deposit in Qinglong,Western guizhou,SW China

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Acta Geochimica 2017年第2期36卷 329-338页

作者： Jun Sun Zhao Jingyu Aiguo Nie College of Resource and Environment engineering Guizhou University College of Resource and Environment engineering Guizhou Institute of Technology Key Laboratory of High-temperature and High-pressure Study of the Earth's Interior Institute of GeochemistryChinese Academy of Sciences

The Shazi deposit is a large-scale anatase deposit in Qinglong, guizhou Province. Zircon grains from this deposit yielded a zircon U–Pb age of *259 Ma, representing the formation age of the deposit's parent *** age is identical to the eruption age of the Emeishan large igneous province, indicating a synchronous magmatic event. The rare-earth-element patterns of laterite samples were similar to those of the weathered basalt sample, and sub-parallel to those of the Emeishan high-Ti basalts,implying a genetic relationship between the laterite and the basalt. The chemical Index of Alteration values of laterite ranged from 96 to 98, suggesting a high degree of weathering. SiO_2, MgO, and alkaline metal elements decreased with increasing degree of weathering, while Al_2O_3, Fe_2O_3,and TiO_2 increased. We found the highest TiO_2 in laterite and the lowest in pillow basalts, indicating that Ti migrated from basalt to *** U–Pb dating and whole-rock elemental geochemistry analyses suggest that the Emeishan basalt is the parent rock of the Shazi anatase ore *** on our analysis, we propose a metallogenic model to explain the ore-forming process, in which the karst terrain formed by the Emeishan mantle plume and the subsequent basaltic magma eruption were the key factors in the formation the Shazi anatase ore deposit.

关键词： Anatase deposit Zircon U-Pb - Emeishan basalt Karst terrain

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Synthesis and Characterization of Polyaniline/Partially Phosphorylated Poly(vinyl alcohol) Nanoparticles

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Chinese Journal of Polymer Science 2014年第1期32卷 35-42页

作者：蒋绪 Bing-chang Li Yong-hui Song Zhi-liang Gao Bei-bei Nan Research institute of Energy chemical Industry Xianyang Vocational Technical College Department of Energy engineering Shaanxi Energy Institute Research Center of metallurgical engineering & Technology of Shaanxi Province Xi'an University of Architecture and Technology Research institute of Shaanxi Yanchang Petroleum (group) Co. Ltd.

The polyaniline/partially phosphorylated poly（vinyl alcohol）（PANI/P-PVA） nanoparticles were prepared by the chemical oxidative dispersion polymerization of aniline monomer in 0.5 mol/L HC1 aqueous media with the partially phosphorylated poly（vinyl alcohol）（P-PVA） as the stabilizer and co-dopant. The PANI/P-PVA nanoparticles were characterized by transmission electron microscopy （TEM）, Fourier transform infrared spectroscopy （FTIR）, thermal gravimetric analysis （TGA）, X-ray diffraction （XRD）, electrical conductivity measurements and re-dispersion stability testing. All the results were compared with the properties of the conventional polyaniline in the emeraldine salt form （PANI ES）. It was found that the feeding ratio of P-PVA obviously affected the morphology, re-dispersion stability and electrical conductivity of the PANI/P-PVA nanoparticles. When the feeding ratio of P-PVA ranged from 40 wt% to 50 wt%, the PANI/P-PVA nanoparticles showed spherical shape with good uniformity, significant re-dispersion stability in aqueous media and good electrical conductivity.

关键词： Conducting polyaniline Phosphorylated poly(vinyl alcohol) Colloidal dispersion.

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Separation of Sc_(2)O_(3) from Bayan Obo tailings through an innovative roasting method

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Rare Metals 2022年第3期41卷 1071-1076页

作者： Xin-Jun Bao Zhi-Jian Wang Liu-Jiang Xi Ji-Bo Liu Zheng-Fu Su Tao Yang Wei Cheng De-Bi Zhou institute for Energy-Storing Materials Research Hunan Rare Earth Metal Material Research InstituteChangsha 410126China College of Chemistry and chemical engineering Central South UniversityChangsha 410083China School of metallurgical engineering Hunan University of TechnologyZhuzhou 412007China

Sc_(2)O_(3)was successfully extracted and separated from Bayan Obo tailings by a CaCl_(2)-reductive carbon powder-combinative roasting *** optimum pro-cess condition was obtained through adjusting specific ef-fect *** is found that Sc_(2)O_(3)with the ratio of 87.51%is leached out under roasting temperature of 800℃for 2 h through adding 73%CaCl_(2),and 20%reductive carbon powder with liquid to solid ratio of ***,the specific reaction mechanism during roasting process was investi-gated by thermogravimetric–differential scanning calorimetry(TG-DSC)and X-ray diffraction(XRD)*** results show that the main phases(SiO_(2),CaF_(2) and NaFeSi_(2)O_(6))as well as important phases(LiScSi_(2)O_(6),REFCO_(3)and REPO_(4))would turn into new phases(CaFe-SiO_(4),Fe,Ca_(3)(PO_(4))_(2),NaCl,RE_(2)O_(3)and Sc_(2)O_(3))after com-plicated reactions,which effectively break up the original mineral compositions and activate the existing state of containing scandium matter,consequently facilitating the subsequent hydrochloric acid leaching process.

关键词： Bayan Obo tailings Roasting Decomposition Sc_(2)O_(3)

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Molecular Structure and Electronic Spectra of CoS under the Radiation Fields

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Computers, Materials & Continua 2018年第6期55卷 393-403页

作者： Qijun Wu Limin Han Lingxuan Wang Xun Gong School of chemical engineering Guizhou Institute of TechnologyGuiyang550003P.R.China Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics Tsinghua UniversityBeijing100084P.R.China School of Food and Pharmaceutical engineering Guizhou Institute of TechnologyGuiyang550003P.R.China

We optimized the ground-state stable configuration of CoS molecule in different external radiation fields(0-0.04 atomic units(a.u.))at the basis set level of 6-311G++(d,p)using the B3LYP density functional *** this basis,the molecular structure,total energy,energy gap,and the intensities of infrared ray(IR)spectra,Raman spectra,and ultraviolet-visible(UV-Vis)absorption spectra of CoS molecule were computed using the same *** results showed that the molecular structure changed greatly under the effect of the external radiation fields and had significant dependency on the radiation *** total energy of CoS molecule grew slightly at first and then significantly decreased in a monotonous *** bond length,dipole moment,and energy gap of the molecule all reduced at first and then increased,with the turning point all at F=0.025 *** the radiation *** absorption peak of IR spectra and Raman optical activity both had maximums at F=0.03 *** significant red *** the external radiation field of F=0.030 a.u.,the absorption wavelength of the UV-Vis absorption spectra showed large blue shift,and a strong absorption peak was observed.

关键词： CoS density functional theory molecular structure radiation field spectra

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Extraction of nickel from molybdenum leaching residue of metalliferous black shale by segregation roasting and acid leaching

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Journal of Central South University 2012年第2期19卷 340-346页

作者：楚广赵思佳杨天足 School of metallurgical Science and engineering Central South University Hunan Research institute of Nonferrous Metals

The recovery of nickel from molybdenum leach residue by the process of segregation roasting-sulfuric acid leaching-solvent extraction was investigated. The residue was characterized by microscopic investigations, using X-ray fluorescence spectrometry （XRF） and X-ray diffractometry （XRD） techniques and the residue after segregation roasting was characterized by chemical phase analysis method. A series of experiments were conducted to examine the mass ratio of activated carbon （AC） to the residue, segregation roasting time and temperature, sulfuric acid concentration, liquid-to-solid ratio, leaching time, leaching temperature, addition amount of 30% H2O2, stirring speed （a constant） on the leaching efficiency of nickel. A maximum nickel leaching efficiency of 90.5% is achieved with the mass ratio of AC to the residue of 1：2.5, segregation roasting time of 2 h, segregation roasting temperature of 850 ℃, sulfuric acid concentration of 4.5 mol/L, liquid-to-solid ratio of 6：1, leaching time of 5 h, leaching temperature of 80 ℃, addition of 30% H202 of 0.6 mL for 1 g dry residue. Under these optimized conditions, the average leaching efficiency of nickel is 89.3%. The nickel extraction efficiency in the examined conditions is about 99.6%, and the nickel stripping efficiency in the examined conditions is about 99.2%.

关键词： metalliferous black shale segregation roasting nickel leaching PC-88A solvent extraction

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Role of Substrate Roughness in ZnO Nanowire Arrays Growth by Hydrothermal Approach

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Acta Metallurgica Sinica(English Letters) 2016年第3期29卷 237-242页

作者： Qiu-Hong Wang Chao-Long Tang Cheng-Ming Jiang Dan-Feng Du Feng Wang Jin-Hui Song Department of metallurgical and Materials engineering Center for Materials for Information Technology(MINT)University of Alabama Department of Mechanical engineering Changzhou Institute of Mechatronic Technology

The role of substrate roughness in ZnO nanowire（NW） arrays hydrothermal growth has been systematically *** silicon substrates with different roughness by chemical etching have been selected to grow ZnO NW arrays hydrothermally after sputtering 5-nm-thick ZnO seed layer as *** as-grown samples reveal that average diameters and number densities of ZnO NW arrays are inversely proportional to the increasing substrate roughness observed by atomic-force microscopy and scanning electron ***,the theoretically derived equations based on nucleation with the Gibbs free energy to describe relations of substrate roughness versus average NW diameter and NW number density match well with experimental *** results in this paper can be used to control the number density and the average diameter of ZnO NW arrays by alternating substrate roughness.

关键词： ZnO nanowire chemical synthesis Atomic-force microscopy Substrate roughness

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Synthesis and antiviral activities of novel 1,4-pentadien-3-one derivatives bearing an emodin moiety

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Chinese chemical Letters 2016年第6期27卷 948-952页

作者： Jian Wu Yun-Ying Zhu Yong-Hui Zhao Wei-Li Shan De-Yu Hu Ji-Xiang Chen Deng-Yue Liu Xiang-Yang Li Song Yang State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering Key Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of Education Research and Development Center for Fine Chemicals Guizhou University School of chemical engineering Guizhou Institute of Technology institute for the Control of Agrochemicals Ministry of Agriculture

A series of 1,5-diaryl-1,4-pentadien-3-one derivatives bearing an emodin group were designed and synthesized by the combination of natural products. The antiviral activities against tobacco mosaic virus（TMV） and cucumber mosaic virus（CMV） in vivo were evaluated. Some of the derivatives displayed promising curative effect and protective activity against TMV. Compound D5 showed appreciable curative bioactivity on TMV approximately of 50% at 306.2 mg/m L, which was superior to ningnanmycin（409.3 mg/m L）.

关键词： 1 4-Pentadien-3-one derivatives Emodin Synthesis Antiviral activity

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