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| 1 | Effect of tannic acid on corrosion behavior of carbon steel in NaCl solution显示文摘Corrosion behavior of unrusted Q235 carbon steel was investigated in 3.5% NaCl solutions with 1–5 wt%tannic acid addition, using electrochemical methods including electrochemical impedance spectra(EIS),potentiodynamic polarization and scanning vibrating electrode technique(SVET) combined with surface analysis. Results show that the corrosion rate decreases with increasing tannic acid concentration. As compared with tannic acid-free solution, 1% tannic acid does not provide inhibition effect during the whole immersion, while inhibition effect is observed for 3% tannic acid after 8 h and for 5% tannic acid after 4 h. The inhibition efficiency by weight loss measurements(áw) for 1%, 3%, and 5% tannic is around-17.2%, 40.3%, and 51.5%, respectively. Corrosion of unrusted carbon steel in the presence of tannic acid is attributed to the joint effect of tannic acid adsorption and pH decrease. Formation of ferric-tannates is verified by X-ray photoelectron spectroscopy(XPS) and Raman spectra. The reaction mechanism between tannic acid and unrusted carbon steel is proposed. | Wenhua Xu En-Hou Han Zhenyu Wang | 2019 | Journal of Materials Science & Technology2019,35,1: | 16 |
| 2 | Paleomagnetic results of Late Paleozoic rocks from northern Qiangtang Block in Qinghai-Tibet Plateau, China显示文摘Tectonic evolution of the Tethys and the boundary between the Gondwanaland and the Eurasia during the Carboniferous and Permian remain hotly debated. Qiangtang region in the Qinghai-Tibet Plateau may be a key place to study these problems. A paleomagnetic study was conducted on the Late Paleozoic rocks in the northern Qiangtang region (33.7°N, 86.7°W), Tibet. Two sites (21 samples) in the Upper Carboniferous, eleven sites (101 samples) in the Permian, and two sites (16 samples) in the Lower Triassic were investigated. The rock magnetic data revealed hematite and magnetite as the main magnetic carriers. In stepwise thermal demagnetization and/or combined alternating field (AC) demagnetization, two characteristic components in the majority of the samples were identified as (1) the Low-temperature Component (LTC), characterized by northerly decli- nation and moderate to steep inclination, corresponding to a pole position overlay with the present North Pole. A minority of the samples present single component, and their directions are the same as (2) the High-temperature Component (HTC) of double components. The combined single-component and HTC data of the Permian can pass the R-test at 95% level and the F-test at 99% level, as well as the BC-test. The pole position from the Late Carboniferous is at 31.8°S, 45.7°E with dp=2.1, dm=3.9, that from the Early and Middle (Late) Permian is at 31.7°S, 46.8°E with dp=9.2, dm=16.9 (34.4°N, 54.1°E with dp=6.9, dm=12.5) respectively, and that from the Early Triassic is at 16.9°S, 22.5°E with dp=4.9, dm=9.2. These pole positions are different from the other poles for the Qiangtang Block, which suggests the single-component and HTC directions are probably a primary magnetization and the northern Qiangtang Block was paleogeographically situated at low latitudes in the Northern Hemisphere in the Late Paleozoic. | CHENG Xin WU HanNing GUO Qiang HOU BaoNing XIA LingYan WANG HaiJun DIAO ZongBao HUO FeiFei JI WenHua LI RongShe CHEN ShouJian ZHAO ZhenMing LIU XiaoJi | 2012 | Science China Earth Sciences2012,55,1: | 9 |
| 3 | Paleomagnetic data from the Late Carboniferous-Late Permian rocks in eastern Tibet and their implications for tectonic evolution of the northern Qiangtang-Qamdo block显示文摘We report paleomagnetic results from the Late Carboniferous-Late Permian strata in eastern Tibet (China), and aim to clarify the tectonic and paleogeographic evolution of the northern Qiangtang-Qamdo block, which is the key to the study of plate boundary between the Gondwanaland and the Eurasia during the late Paleozoic. Two hundred and nineteen samples-including limestone, muddy siltstone, basalt, lava, and tuff-were collected at 24 sites in the Upper Carboniferous and Middle-Upper Permian successions. A systematic study of rock magnetism and paleomagnetism yields three reliable paleomagnetic pole positions. Both hematite and magnetite occurred in the Late Carboniferous limestone samples. The demagnetization curve shows a characteristic double-component, with the remanent magnetization (ChRM) exhibiting a positive polarity (negative inclination). In the Late Permian limestone, tuff, and basalt, magnetic information were recorded primarily in magnetite, although a small fraction of them was found in hematite in basalt. The demagnetization curve illustrates a double or single component, with the ChRM showing a negative polarity (positive inclination), which has passed the classic fold test successfully. The single polarity features of the ChRM directions of the Late Carboniferous and Middle-Late Permian rocks are respectively related to the Kiaman positive and reversed polarities under the stratigraphic coordinates. This, in turn, indicates that both ChRMs directions represent the original remanence directions. By comparison with the previously published paleomagnetic results from the late Paleozoic rocks in the northern Qiangtang Range, we suggest that: (1) Qamdo and northern Qiangtang block were independent of each other during the Late Carboniferous to the Early Permian periods. The north Lancangjiang ocean basin between the two blocks may have closed before the Middle Permian and been involved in the continent-continent collision stage in the Late Permian-Early Triassic periods. (2) The northern Qiangtang-Qamdo Block paleogeographically was situated at low to intermediate latitudes in the Southern Hemisphere in the Late Carboniferous-Late Permian periods, and began to displace northward in the Early Triassic, with an amount of more than 5000 km northward transport from its current location. | CHENG Xin WU HanNing DIAO ZongBao WANG HaiJun MA Lun ZHANG XiaoDong YANG Gang HONG JingJing JI WenHua LI RongShe CHEN ShouJian ZHAO ZhenMing | 2013 | Science China Earth Sciences2013,56,7: | 8 |
| 4 | Species-specific Response of Photosynthesis to Burning and Nitrogen Fertilization显示文摘The present study was conducted to examine photosynthetic characteristics of three dominant grass species (Agropyron cristatum,Leymus chinensis,and Cleistogenes squarrosa) and their responses to burning and nitrogen fertilization in a semiarid grassland in northern China. Photosynthetic rate (Pn),stomatal conductance (gs),and water use efficiency (WUE) showed strong temporal variability over the growing season. C. squarrosa showed a significantly higher Pn and WUE than A. cristatum and L. chinensis. Burning stimulated Pn of A. cristatum and L. chinensis by 24–59% (P < 0.05) in the early growing season,but not during other time periods. Light-saturated photosynthetic rate (Pmax) in A. cristatum and the maximum apparent quantum yield (Φmax) in A. cristatum and L. chinensis were significantly enhanced by burning (16–67%) in both the fertilized and unfertilized plots. The main effect of burning on Pn,Pmax and Φmax was not significant in C. squarrosa. The burning-induced changes in soil moisture could explain 51% (P =0.01) of the burning-induced changes in Pn of the three species. All three species showed positive responses to N fertilization in terms of Pn,Pmax,and Φmax. The stimulation of Pn under N fertilization was mainly observed in the early growing season when the soil extractable N content was significantly higher in the fertilized plots. The N fertilization-induced changes in soil extractable N content could explain 66% (P = 0.001) of the changes in Pn under N fertilization. The photosynthetic responses of the three species indicate that burning and N fertilization will potentially change the community structure and ecosystem productivity in the semiarid grasslands of northern China. | Yanfang Zhang Shuli Niu Wenhua Xu Yi Han | 2008 | Journal of Integrative Plant Biology2008,50,5: | 8 |
| 5 | Accuracy of triage strategies for human papillomavirus DNA-positive women in low-resource settings:A cross-sectional study in China显示文摘Objective: Care HPV is a human papillomavirus(HPV) DNA test for low-resource settings(LRS).This study assesses optimum triage strategies for care HPV-positive women in LRS.Methods: A total of 2,530 Chinese women were concurrently screened for cervical cancer with visual inspection with acetic acid(VIA),liquid-based cytology and HPV testing by physician-and self-collected care HPV,and physician-collected Hybrid Capture 2(HC2).Screen-positive women were referred to colposcopy with biopsy and endocervical curettage as necessary.HPV-positivity was defined as ≥1.0 relative light units/cutoff(RLU/CO) for both care HPV and HC2.Primary physician-HC2,physician-care HPV and self-care HPV and in sequential screening with cytology,VIA,or increased HPV test-positivity performance,stratified by age,were assessed for cervical intraepithelial neoplasia(CIN) grade 2/3 or worse(CIN2/3+) detection.Results: The sensitivities and specificities of primary HPV testing for CIN2+ were: 83.8%,88.1% for physiciancare HPV; 72.1%,88.2% for self-care HPV; and 97.1%,86.0% for HC2.Physician-care HPV test-positive women with VIA triage had a sensitivity of 30.9% for CIN2+ versus 80.9% with cytology triage.Self-care HPV testpositive women with VIA triage was 26.5% versus 66.2% with cytology triage.The sensitivity of HC2 test-positive women with VIA triage was 38.2% versus 92.6% with cytology triage.The sensitivity of physician-care HPV testing for CIN2+ decreased from 83.8% at ≥1.0 RLU/CO to 72.1% at ≥10.00 RLU/CO,while the sensitivity of selfcare HPV testing decreased from 72.1% at ≥1.0 RLU/CO to 32.4% at ≥10.00 RLU/CO; similar trends were seen with age-stratification.Conclusions: VIA and cytology triage improved specificity for CIN2/3 than no triage.Sensitivity with VIA triage was unsuitable for a mass-screening program.VIA provider training might improve this strategy.Cytology triage could be feasible where a high-quality cytology program exists.Triage of HPV test-positive women by increased test positivity cutoff adds another LRS triage option. | Margaret Wang Shangying Hu Shuang Zha o Wenhua Zhang Qinjing Pan Xun Zhang FengChen Jinxiu Han Junfei Ma Jennifer S.Smith Youlin Qiao Caihong Zhou Fanghui Zhao | 2017 | Chinese Journal of Cancer Research2017,29,6: | 6 |
| 6 | Comparison of two methods for detection of fecal indicator bacteria used in water quality monitoring of the Three Gorges Reservoir显示文摘Scientifically sound methods to rapidly measure fecal indicator bacteria are important to ensure safe water for drinking and recreational purposes.A total of 200 water samples obtained from the Three Gorges Reservoir during three successive one-year study periods(October 2009 to September 2012) were analyzed using multiple-tube fermentation(MTF)and most probable numbers combined with polymerase chain reaction(MPN–PCR).The MPN–PCR method was found to be significantly more sensitive than the MTF method for detecting Escherichia coli and Enterococcus spp.,and of equal sensitivity for detecting total coliforms when all surface water samples were grouped together.The two analytical methods had a strong,significant relationship,but MPN–PCR took only 12–18 hr,compared with the 3–8 days needed using the MTF method.Bacterial concentrations varied per sampling site but were significantly lower in the mainstream of the Yangtze River than those in the backwater areas of tributaries.The water quality of 85.8% of water samples from the mainstream was suitable for use as a centralized potable water source,while the water quality of 52.5% of water samples from the backwater areas was unsuitable for recreational activities.Relationships between fecal indicator bacteria showed significant correlation(r = 0.636–0.909,p < 0.01,n = 200),while a weak but significant correlation was found between fecal indicators and water turbidity,water temperature,daily inflow,and total dissolved solids(r = 0.237–0.532,p < 0.05,n = 200).The study indicated that MPN–PCR is a rapid and easily performed deoxyribonucleic acid(DNA)-based method for quantitative detection of viable total coliforms,E.coli,and Enterococcus spp.in surface water. | Zhaodan Wang Guosheng Xiao Nong Zhou Wenhua Qi Lin Han Yu Ruan Dongqin Guo Hong Zhou | 2015 | Journal of Environmental Sciences2015,27,12: | 4 |
| 7 | Studies on Cataclastic Lithofacies and Copper Metallogenic Regularity for the Glutenite-type Sareke Copper deposit, Xinjiang显示文摘1 Introduction Large-size glutenite-type copper deposit was controlled by the Mesozoic Sarekebayi intracontinental pull-apart basin in Xinjiang.Strata exposed in the study area include the Mesoproterozoic Akesu Group Complex, | HAN Wenhua FANG Weixuan ZHANG Guishan Lu jia Wang lei JIA Runxing LI Tiancheng | 2017 | Acta Geologica Sinica(English Edition)2017,91,S1: | 3 |
| 8 | Oxamate-mediated inhibition of lactate dehydrogenase induces protective autophagy in gastric cancer cells: Involvement of the Akt–mTOR signaling pathway显示文摘 | Zhi Zhao Fanghai Han Shibin Yang Jianhai Wu Wenhua Zhan | 2014 | Cancer Letters2014,,: | 1 |
| 9 | Real-Time Supervision for STATCOM Installation显示文摘 | Xie Xiaorong Liu Wenhua Qian Hua Han Yingduo | 2000 | IEEE Computer Application in Power2000,,2: | 1 |
| 10 | Cloning and Expression of Douchi Fibrinolytic Enzyme (DFE)Gene from Bacillus subtilis 显示文摘 | Luo Wenhua Guo Yong Han Shuangyan | 2007 | Journal of South China University of Technology (Nature Science Edition)2007,35,11: | 1 |
| 11 | Angular dependent NEXAFS study of the molecular orientation of PTCDA multilayers on Au (111) surface显示文摘The molecular orientation of perylene-3,4,9,10-tetracarboxylic acid dianhydride (PTCDA) multilayers adsorbed on Au (111) surface has been investigated using angular dependent O K-edge near edge X-ray absorption fine structure (NEXAFS) spectroscopy. The significant angular dependence of important resonant structures (π* and σ*) reveals that PTCDA molecules adopt an ordered geometry on the substrate surface. The average tilt angle of the PTCDA molecular planes is 27°±10° from the Au (111) surface. | CAO Liang ZHANG WenHua HAN YuYan CHEN TieXin ZHENG ZhiYuan WAN Li XU FaQiang IBRAHIM Kurash QIAN HaiJie WANG JiaOu | 2011 | Chinese Science Bulletin2011,56,33: | 1 |
| 12 | Tailoring optical and photocatalytic properties by single-Ag-atom exchange in Au_(13)Ag_(12)(PPh_(3))_(10)C_(l8) nanoclusters显示文摘Precise mono-doping of metal atom into metal particles at a specific particle position(e.g.,the central site)in a highly controllable manner is still a challenge.In this work,we develop a highly controllable strategy for exchanging a single Ag atom into the central gold site of Au_(13)Ag_(12)(PPh_(3))_(10)C_(l8)(Ph=phenyl)nanoclusters.Interestingly,a“pigeon-pair”cluster of{[Au_(13)Ag_(12)(PPh_(3))_(10)C_(l8)]·[Au_(12)Ag_(13)(PPh_(3))_(10)C_(l8)]}^(2+)is obtained and confirmed by electrospray ionization mass spectrometry(ESI-MS),thermogravimetric analysis(TGA)and single crystal X-ray diffraction(SCXRD)analysis.The experimental results and density functional theory(DFT)calculations suggest that the single-metal-atom exchanging from[Au_(13)Ag_(12)(PPh_(3))_(10)C_(l8)]^(+)to[Au_(12)Ag_(13)(PPh_(3))_(10)C_(l8)]^(+)occurs at the central position through the side entry of theμ_(3)-bridging Cl atoms.Finally,the effects on the electronic structure and properties caused by the single-atom exchange at the central site are shown by the enhancement of fluorescence and catalytic activity in the photocatalytic oxidation of ethanol. | Zhaoxian Qin Song Hu Wenhua Han Zhiwen Li Wen Wu Xu Jingjing Zhang Gao Li | 2022 | Nano Research2022,15,4: | 1 |
| 13 | Late Iransifion metal complexes bearing 2,9-bis (imino)-1,10-phenanthrolinyl ligands: synthesis, characterization and their ethylene activity显示文摘 | Wang Leyong Sun Wenhua Han Lingqin | 2002 | J Organomet Chem2002,658,12: | 1 |
| 14 | Bacteria-mediated tumor-targeted delivery of tumstatin(54-132)significantly suppresses tumor growth in mouse model by inhibiting angiogenesis and promoting apoptosis显示文摘Tumor growth is an angiogenesis-dependent process and accompanied by the formation of hypoxic areas.Tumstatin is a tumor-specific angiogenesis inhibitor that suppresses the proliferation and induces the apoptosis of tumorous vascular endothelial cells.VNP20009,an attenuated Salmonella typhimurium strain,preferentially accumulates in the hypoxic areas of solid tumors.In this study,a novel Salmonella-mediated targeted expression system of tumstatin(VNP-Tum5)was developed under the control of the hypoxia-induced J23100 promoter to obtain anti-tumor efficacy in mice.Treatment with VNP-Tum5 effectively suppressed tumor growth and prolonged survival in the mouse model of B16F10 melanoma.VNP-Tum5 exhibited a higher efficacy in inhibiting the proliferation and inducing the necrosis and apoptosis of B16F10 cells in vitro and in vivo compared with VNP(control).VNP-Tum5 significantly inhibited the proliferation and migration of mouse umbilical vascular endothelial cells to impede angiogenesis.VNP-Tum5 downregulated the expression of anti-vascular endothelial growth factor A,platelet endothelial cell adhesion molecule-1,phosphorylated phosphoinositide 3 kinase,and phosphorylated protein kinase B and upregulated the expression of cleaved-caspase 3 in tumor tissues.This study is the first to use tumstatin-transformed VNP20009 as a tumor-targeted system for treatment of melanoma by combining anti-tumor and anti-angiogenic effects. | Feifei Bao Mengjie Liu Wenhua Gai Yuwei Hua Jing Li Chao Han Ziyu Zai Jiahuang Li Zichun Hua | 2022 | Frontiers of Medicine2022,16,6: | 0 |
| 15 | Mass spectrometry analysis of intact protein N-glycosylation signatures of cells and sera in pancreatic adenocarcinomas显示文摘Pancreatic cancer is among the most malignant cancers,and thus early intervention is the key to better survival outcomes.However,no methods have been derived that can reliably identify early precursors of development into malignancy.Therefore,it is urgent to discover early molecular changes during pancreatic tumorigenesis.As aberrant glycosylation is closely associated with cancer progression,numerous efforts have been made to mine glycosylation changes as biomarkers for diagnosis;however,detailed glycoproteomic information,especially site-specific N-glycosylation changes in pancreatic cancer with and without drug treatment,needs to be further explored.Herein,we used comprehensive solid-phase chemoenzymatic glycoproteomics to analyze glycans,glycosites,and intact glycopeptides in pancreatic cancer cells and patient sera.The profiling of N-glycans in cancer cells revealed an increase in the secreted glycoproteins from the primary tumor of MIA PaCa-2 cells,whereas human sera,which contain many secreted glycoproteins,had significant changes of glycans at their specific glycosites.These results indicated the potential role for tumor-specific glycosylation as disease biomarkers.We also found that AMG-510,a small molecule inhibitor against Kirsten rat sarcoma viral oncogene homolog(KRAS)G12C mutation,profoundly reduced the glycosylation level in MIA PaCa-2 cells,suggesting that KRAS plays a role in the cellular glycosylation process,and thus glycosylation inhibition contributes to the anti-tumor effect of AMG-510. | Mingming XU Zhaoliang LIU Wenhua HU Ying HAN Zhen WU Sufeng CHEN Peng XIA Jing DU Xumin ZHANG Piliang HAO Jun XIA Shuang YANG | 2024 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2024,25,1: | 0 |
| 16 | Expression of CXCL12-CXCR4 in osteosarcoma and its correlation with angiogenesis显示文摘Objective The expression of CXCL12(stromal cell-derived factor-1)-CXCR4(chemokine receptors-4) in osteosarcoma and its role in angiogenesis were examined.Methods The expression of CXCR4 and CXCL12 in 40 cases of osteosarcoma was detected by immunohistochemistry and real-time fluorescence quantitative PCR.The expression of CD34 in osteosarcoma was detected by immunohistochemistry.Morphometric image analysis was performed to measure microvessel density(MVD).Additionally,the relationship between CXCL12 and CXCR4 expression and MVD of osteosarcoma and pulmonary metastasis were analyzed.Results The positive rates of CXCL12 and CXCR4 protein expression in osteosarcoma were 40.0%(16/40) and 60.0%(24/40),respectively.Fluorescence quantitative real-time PCR indicated that the expression level of CXCR4 m RNA in pulmonary metastatic osteosarcoma was higher than that in nonpulmonary metastatic osteosarcoma(P < 0.01).The level of MVD in pulmonary metastatic osteosarcoma was higher than that in non-pulmonary metastatic osteosarcoma(P < 0.01).Conclusion The expression level of CXCR4 was significantly associated with pulmonary metastasis and angiogenesis of osteosarcoma. | Lu Han Yangyang Shen Wenhua Zhao Baoyong Sun Xin Zhang Kai Cui Lei Zhou Sheng Li | 2017 | Oncology and Translational Medicine2017,3,6: | 0 |
| 17 | Isomerism: Minor Changes in the Bromine Substituent Positioning Lead to Notable Differences in Photovoltaic Performance显示文摘An isomerism strategy was employed to develop single,end‐group bromine-substituted non‐fullerene two isomeric acceptors,2,2′-((2Z,2′Z)-((12,13-bis(2-ethylhexyl)-3,9-diundecyl-12,13-dihydro-[1,2,5]thiadiazolo[3,4-e]thieno[2,'3′′:4′,5′]thieno[2′,3′:4,5]pyrrolo[3,2-g]thieno[2′,3′:4,5]thieno[3,2-b]indole-2,10-diyl)bis(methanylylidene))bis(4-bromo-3-oxo-2,3-dihydro-1H-inden-1-ylidene)dimalononitrile(BTIC-2Br-β)and 2,2′-((2Z,2′Z)-((12,13-bis(2-ethylhexyl)-3,9-diundecyl-12,13-dihydro-[1,2,5]thiadiazolo[3,4-e]thieno[2,'3′′:4′,5′]thieno[2′,3′:4,5]pyrrolo[3,2-g]thieno[2′,3′:4,5]thieno[3,2-b]indole-2,10-diyl)bis(methanylylidene))bis(5-bromo-3-oxo-2,3-dihydro-1Hinden-1-ylidene)dimalononitrile(BTIC-2Br-γ). | Huan Wang Liang Han Jiadong Zhou Tao Liu Daize Mo Hui Chen Haijian Lai Nan Zheng Zengqi Xie Wenhua Zheng Feng He | 2021 | CCS Chemistry2021,3,9: | 0 |
| 18 | Serosurvey of SARS-CoV-2 among hospital visitors in China显示文摘Dear Editor,In China,the epidemic of COVID-19 has been temporarily brought under control due to strong measures,while there are few new cases except some imported ones(http://gffzz49e061632b4f43absnkwvqf6xpx9c6qfc.ffgz.tsg.suse.edu.cn/wuhan-haiwai-pre/dist/index.html#/).The PCR-based test result combined with clinical symptoms has widely been used for the detection and confirmation of COVID-19.1 However,the prevalence of asymptomatic or subclinical SARS-CoV-2 infection in China remained unknown. | Wenhua Liang Yongping Lin Jianping Bi Jianfu Li Ying Liang Sook-San Wong Mark Zanin Zifeng Yang Caichen Li Ran Zhong Guowu Jiang Guang Han Desheng Hu Jianxing He Nanshan Zhong | 2020 | Cell Research2020,30,9: | 0 |
| 19 | Experimental study on the uptake and effects of arsenic originated from poultry litter on the growth of Brassica napus in greenhouse pot cultivation and health risk assessment显示文摘Organoarsenics are widely used as growth promoters in poultry industry,resulting in arsenic(As)accumulation in poultry litter.A greenhouse pot study was implemented to investigate the fate of arsenic originated from poultry litter and their effects on the growth of Brassica napus(oilseed rape),and assess their potential health risks.Five poultry litter application rates(0,5%,10%,20%and 40%)were used,dividing into two groups:one for soil incubation(SI)and the other for plant cultivation(PC).Experimental results indicated that the total arsenic for composted poultry litter was(10.94±0.23)mg/kg,As(V)and As(III)decreased while methylated arsenic increased after 21 d in SI and PC treatments.Seed germination rates were negatively correlated with monomethylarsenic acid(MMA,R2=0.63,p<0.05).The length and biomass of roots and shoots were significantly inhibited by poultry litter,but plant length of 5%treatments was slightly stimulated.Within an average weekly intake of 0.5 kg Brassica napuss,the risk quotient(RQ)values induced from roots nearly all surpassed the acceptable limit(1),were two orders magnitude higher than shoots.According to the potential risk to order,child exhibited the highest risk,adolescent ranked secondly,and adult exhibited the lowest risk.Hence,people should better avoid intake Brassica napus roots to reduce arsenic potential risk. | Xie Haiyun Han Deming Cheng Jinping Wang Liang Zhou Pei Wang Wenhua | 2016 | International Journal of Agricultural and Biological Engineering2016,9,3: | 0 |
| 20 | Synthesis,structure,and optical properties of manganese phthalocyanine thin films and nanostructures显示文摘Manganese phthalocyanine(MnPc) nanostructures with different morphologies were prepared on porous anodic alumina oxide(AAO) at different substrate temperature(T_S=50 ℃,80 ℃,120 ℃,180 ℃,240 ℃) in an organic molecular beam deposition(OMBD) system.The nanostructures morphologies were studied using scanning electron microscopy(SEM) and the results showed that the nanostructures morphologies could be modulated by the control of T_S,as a result,the continuous film was obtained at 50 ℃,whereas the nanorods(NRs),nanoribbons(NBs),nanowires(NWs),nanosheets(NSs) and nanoparticles(NPs) were facilely generated as T_S increased.At the same time,the density and the uniformity of the nanostructures decreased.The results of X-ray diffraction(XRD) indicated that only the(3-phase polymorph formed throughout the growth process irrelevant to the T_S.Additionally,the ultraviolet visible(UV-Vis) absorption spectra demonstrated that the main absorption bands of MnPc nanostructures showed a remarkable band broadening as the T_S was increased. | Lu Meng Kai Wang Yuyan Han Yi Yao Pin Gao Chao Huang Wenhua Zhang Faqiang Xu | 2017 | Progress in Natural Science:Materials International2017,27,3: | 0 |