E-journal of Chemistry最新文献_第4页

Synthesis of Schiff Bases of 2-amino-5-aryl-1,3,4-thiadiazole and Its Analgesic, Anti-Inflammatory and Anti-Bacterial Activity 2-氨基-5-芳基-1,3,4-噻二唑席夫碱的合成及其镇痛、抗炎和抗菌活性

E-journal of Chemistry Pub Date : 2012-01-01 DOI: 10.1155/2012/145028

Alok Pandey, R. Rajavel, Sandeep Chandraker, D. Dash

引用次数: 57

Nitrate Removal from Ground Water: A Review 地下水中硝酸盐的去除研究进展

E-journal of Chemistry Pub Date : 2012-01-01 DOI: 10.1155/2012/154616

Archna, Sur Sharma, R. Sobti

引用次数: 110

Optimization conditions of extracellular proteases production from a newly isolated streptomyces pseudogrisiolus NRC-15 新分离伪灰链霉菌NRC-15胞外蛋白酶生产条件的优化

E-journal of Chemistry Pub Date : 2012-01-01 DOI: 10.1155/2012/168540

E. Mostafa, M. Saad, H. Awad, M. Selim, H. Hassan

{"title":"Optimization conditions of extracellular proteases production from a newly isolated streptomyces pseudogrisiolus NRC-15","authors":"E. Mostafa, M. Saad, H. Awad, M. Selim, H. Hassan","doi":"10.1155/2012/168540","DOIUrl":"https://doi.org/10.1155/2012/168540","url":null,"abstract":"Microbial protease represents the most important industrial enzymes, which have an active role in biotechnological processes. The objective of this study was to isolate new strain of Streptomyces that produce proteolytic enzymes with novel properties and the development of the low-cost medium. An alkaline protease producer strain NRC-15 was isolated from Egyptian soil sample. The cultural, morphological, physiological characters and chemotaxonomic evidence strongly indicated that the NRC-15 strain represents a novel species of the genus Streptomyces, hence the name Strptomyces pseudogrisiolus NRC-15. The culture conditions for higher protease production by NRC-15 were optimized with respect to carbon and nitrogen sources, metal ions, pH and temperature. Maximum protease production was obtained in the medium supplemented with 1% glucose, 1% yeast extract, 6% NaCl and 100 μmol/L of Tween 20, initial pH 9.0 at 50 °C for 96 h. The current results confirm that for this strain, a great ability to produce alkaline proteases, which supports the use of applications in industry.","PeriodicalId":11519,"journal":{"name":"E-journal of Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2012/168540","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64298115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 22

Microwave Synthesis, Spectral, Thermal and Antimicrobial Studies of Some Co(II), Ni(II) and Cu(II) Complexes Containing 2-Aminothiazole Moiety 含2-氨基噻唑基团Co(II)、Ni(II)和Cu(II)配合物的微波合成、光谱、热及抗菌研究

E-journal of Chemistry Pub Date : 2012-01-01 DOI: 10.1155/2012/106460

A. Mishra, H. Purwar, R. Jain, S. Gupta

{"title":"Microwave Synthesis, Spectral, Thermal and Antimicrobial Studies of Some Co(II), Ni(II) and Cu(II) Complexes Containing 2-Aminothiazole Moiety","authors":"A. Mishra, H. Purwar, R. Jain, S. Gupta","doi":"10.1155/2012/106460","DOIUrl":"https://doi.org/10.1155/2012/106460","url":null,"abstract":"Some new Schiff base metal complexes of Co(II), Ni(II) and Cu(II) derived from 4-chlorobenzylidene-2-aminothiazole (CAT) and 2-nitrobenzylidene-2-aminothiazole (NAT) have been synthesized by conventional as well as microwave methods. These compounds have been characterized by elemental analysis, FT-IR, FAB-mass, molar conductance, electronic spectra, ESR, magnetic susceptibility, thermal, electrical conductivity and XRD analysis. The complexes are coloured and stable in air. Analytical data revealed that all the complexes exhibited 1:2 (metal:ligand) ratio with coordination number 4 or 6. FAB-mass and thermal data show degradation pattern of the complexes. The thermal behavior of metal complexes shows that the hydrated complexes loses water molecules of hydration in the first step; followed by decomposition of ligand molecules in the subsequent steps. The crystal system, lattice parameter, unit cell volume and number of molecules in unit cell in the lattice of complexes have been determined by XRD analysis. XRD patterns indicate crystalline nature for the complexes. The solid state electrical conductivity of the metal complexes has also been measured. Solid state electrical conductivity studies reflect semiconducting nature of the complexes. The Schiff base and metal complexes show a good activity against the Gram-positive bacteria; Staphylococcus aureus and Gram-negative bacteria; Escherichia coli and fungi Aspergillus niger and Candida albicans.","PeriodicalId":11519,"journal":{"name":"E-journal of Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2012/106460","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64293434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Neodymium(III) PVC Membrane Electrodchemical Sensor Based on N-benzoylethylidene-2-aminobenzylamine 基于n -苯甲酰乙基-2-氨基苄胺的钕(III) PVC膜电化学传感器

E-journal of Chemistry Pub Date : 2012-01-01 DOI: 10.1155/2012/145812

H. Zamani, Mojdeh Zaferoni, S. Meghdadi

引用次数: 16

Health Risk Assessment for Trace Metals, Polycyclic Aromatic Hydrocarbons and Trihalomethanes in Drinking Water of Cankiri, Turkey 土耳其坎基里市饮用水中痕量金属、多环芳烃和三卤甲烷的健康风险评估

E-journal of Chemistry Pub Date : 2012-01-01 DOI: 10.1155/2012/172135

E. Caylak

{"title":"Health Risk Assessment for Trace Metals, Polycyclic Aromatic Hydrocarbons and Trihalomethanes in Drinking Water of Cankiri, Turkey","authors":"E. Caylak","doi":"10.1155/2012/172135","DOIUrl":"https://doi.org/10.1155/2012/172135","url":null,"abstract":"Lifetime exposure to trace metals, pesticides, polycyclic aromatic hydrocarbons (PAHs), trihalomethanes (THMs), and the other chemicals in drinking water through ingestion, and dermal contact may pose risks to human health. In this study, drinking water samples were collected from 50 sampling sites from Cankiri and its towns during 2010. The concentrations of all pollutants were analyzed, and then compared with permissible limits set by Turkish and WHO. For health risk assessment of trace metals, chronic daily intakes (CDIs) via ingestion and dermal contact, hazard quotient (HQ), and hazard index (HI) were calculated by using statistical formulas. For ingestion pathway, the maximum HQ values of As-non cancer in central Cankiri and Kursunlu town were higher than one. Considering dermal adsorption pathway, the mean and maximum HQ values were below one. HI values of As-non cancer in central Cankiri and Kursunlu town were also higher than one. Each trace metal (As-non cancer, B, Cd, Cr, Pb, and Sb) of the mean HI values were slightly below unity. Risks of As, PAHs, THMs, and benzene on human health were then evaluated using carcinogenic risk (CR). It is indicated that CRs of As and THMs were also found >10−5 in drinking water of Cankiri might exert potential carcinogenic risk for people. These assessments would point out required drinking water treatment strategy to ensure safety of consumers.","PeriodicalId":11519,"journal":{"name":"E-journal of Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2012/172135","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64298789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 43

Adsorption of U(VI) from Aqueous Solution onto Hydrotalcite-Like Compounds 水滑石类化合物对水溶液中铀(VI)的吸附

E-journal of Chemistry Pub Date : 2012-01-01 DOI: 10.1155/2012/182585

Nguyen Van Suc

引用次数: 4

Validated LC Method for the Estimation of Dorzolamide HCl (Carbonic Anhydrase Inhibitor) in Ophthalmic Solutions 有效液相色谱法测定眼液中多唑胺HCl(碳酸酐酶抑制剂)含量

E-journal of Chemistry Pub Date : 2012-01-01 DOI: 10.1155/2012/258261

A. Narendra, D. Deepika, M. Annapurna

引用次数: 2

Effects of Zinc Binding on the Structure and Stability of Glycylglycine Dipeptide: A Computational Study 锌结合对甘氨酸二肽结构和稳定性影响的计算研究

E-journal of Chemistry Pub Date : 2012-01-01 DOI: 10.1155/2012/295846

M. T. Baei, S. Z. Sayyad-Alangi