Journal of The Serbian Chemical Society最新文献_第2页

Identification of organic compounds using artificial neural networks and refractive index 利用人工神经网络和折射率识别有机化合物

IF 1 4区化学

Journal of The Serbian Chemical Society Pub Date : 2023-01-01 DOI: 10.2298/jsc230201049k

Innocent Kirigiti, N. Aminah, Samson Thomas

引用次数: 0

Chemical characterization and antimicrobial activity of Juglans nigra L. nut and green husk 核桃果仁和青皮的化学性质及抑菌活性研究

IF 1 4区化学

Journal of The Serbian Chemical Society Pub Date : 2023-01-01 DOI: 10.2298/jsc230210024r

K. Rajkovic, M. Drobac, P. Milić, V. Vučić, A. Arsic, Mirijana Peric, M. Radunović, Sanja Jeremić, J. Arsenijević

{"title":"Chemical characterization and antimicrobial activity of Juglans nigra L. nut and green husk","authors":"K. Rajkovic, M. Drobac, P. Milić, V. Vučić, A. Arsic, Mirijana Peric, M. Radunović, Sanja Jeremić, J. Arsenijević","doi":"10.2298/jsc230210024r","DOIUrl":"https://doi.org/10.2298/jsc230210024r","url":null,"abstract":"Juglans nigra (Black walnut) is a source of health-promoting biologically active compounds used in traditional medicine. The investigation of bioactive compounds in black walnut could lead to its broader application, as well as application of its by-products. Therefore, this study aimed to characterize J. nigra nut and green husk based on chemical analysis of their petroleum ether and ethanol extracts obtained by ultrasonic and reflux extraction methods, respectively. Different extract fractions were tested for their antimicrobial activities using Gram-negative bacteria (Escherichia coli, Pseudomonas aeruginosa), Gram-positive bacteria (Enterococcus faecalis Staphylococcus aureus) and yeast (reference strain and clinical isolates of Candida albicans). Ethanol extracts analysis, performed by High Performance Liquid Chromatography (HPLC), singled out the ellagic acid as the most dominant compound in nut (55.0 ? 1.3 ? 10-3 kg m-3) and green husk (114.1 ? 0.5? 10-3 kg m-3) extracts. Non-polar compounds were evaluated using Gas Chromatography (GC) analysis of petroleum ether extracts. Juglans nigra nut and green husk contained two saturated fatty acids, palmitic acid (C16:0) and stearic acid (C18:0), then, monounsaturated fatty acids, palmitoleic (C16:1n-7), oleic (C18:1n-9), and vaccenic acid (C18:1n-7), as well as polyunsaturated fatty acids, linoleic (C18:2n-6), ?-linolenic (C18:3n-6), and ?-linolenic (C18:3n-3) acids. Ethanol extracts of both J. nigra nut and green husk showed antimicrobial activity against C. albicans which is the most common cause of yeast infections.","PeriodicalId":17489,"journal":{"name":"Journal of The Serbian Chemical Society","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68517178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Kinetic investigation of reactions of a 3-arylidene-2-thiohydantoin derivative with palladium (II) salts 3-芳基醚-2-硫代氢酰英衍生物与钯盐反应动力学研究

IF 1 4区化学

Journal of The Serbian Chemical Society Pub Date : 2023-01-01 DOI: 10.2298/jsc230626052s

P. Stanić, Darko P Ašanin, T. Soldatović, Marija D. Živković

{"title":"Kinetic investigation of reactions of a 3-arylidene-2-thiohydantoin derivative with palladium (II) salts","authors":"P. Stanić, Darko P Ašanin, T. Soldatović, Marija D. Živković","doi":"10.2298/jsc230626052s","DOIUrl":"https://doi.org/10.2298/jsc230626052s","url":null,"abstract":"1H NMR spectroscopy was used to monitor the reactions of an arylidene 2-thiohydantoin derivative, 3-((phenylmethylene)amino)-2-thioxo-4- imidazolidinone (3), with PdCl2, cis-[PdCl2(dmso-S)2] and K2[PdCl4] in DMSO-d6 in order to elucidate the reaction kinetics and mechanism. The 2-thiohydantoin derivative 3 formed cis-[Pd(3-N,S)(dmso-S)2]+ complex (5) in reactions with PdCl2 and cis-[PdCl2(dmso-S)2], while no reaction with K2[PdCl4] was observed. A two-step mechanism for the reactions of 3 with PdCl2 and cis-[PdCl2(dmso- S)2] is proposed, in which fast coordination to the side chain nitrogen occurs in the first step, while chelation and coordination to the sulfur atom in the 2- thiohydantoin ring is the second, slower, rate-determining step. The reaction rate constants were calculated and reactivities of the 2-thiohydantoin derivative 3 towards the palladium(II) salts were compared and discussed. Reaction of 3 with cis-[PdCl2(dmso-S)2] was faster than with PdCl2. The investigated palladium(II) salts also react with the solvent, DMSO-d6, and the influence of these side reactions on the outcome and kinetics of the 2-thiohydantoin derivative complexation reaction is discussed in detail. The obtained results of this study can have an impact in explanation of the coordination behavior of antitumor active palladium(II) and platinum(II) complexes","PeriodicalId":17489,"journal":{"name":"Journal of The Serbian Chemical Society","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68517907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

DBUH+I3 complex an efficient catalyst for the synthesis of 2-phenyl benzimidazole and benzothiazole derivatives DBUH+I3配合物是合成2-苯基苯并咪唑和苯并噻唑衍生物的有效催化剂

IF 1 4区化学

Journal of The Serbian Chemical Society Pub Date : 2023-01-01 DOI: 10.2298/jsc220526007g

R. Gawade, P. Kulkarni

引用次数: 0

Waste hemp and flax fibers and cotton and cotton/polyester yarns for removal of methylene blue from wastewater: Comparative study of adsorption properties 废麻、废亚麻纤维与棉、棉/涤纱对废水中亚甲基蓝的吸附性能比较研究

IF 1 4区化学

Journal of The Serbian Chemical Society Pub Date : 2023-01-01 DOI: 10.2298/jsc221213015v

M. Vukčević, Marina Maletic, Biljana Pejić, N. Karic, K. Trivunac, A. Perić-Grujić

{"title":"Waste hemp and flax fibers and cotton and cotton/polyester yarns for removal of methylene blue from wastewater: Comparative study of adsorption properties","authors":"M. Vukčević, Marina Maletic, Biljana Pejić, N. Karic, K. Trivunac, A. Perić-Grujić","doi":"10.2298/jsc221213015v","DOIUrl":"https://doi.org/10.2298/jsc221213015v","url":null,"abstract":"Waste hemp and flax fibers, and cotton and cotton/polyester yarns, available in large quantities from the textile industry, were used as cheap and effective sorbents for the removal of methylene blue from wastewater. Waste fibers and yarns were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, iodine sorption, water retention, and point of zero charge, as well as through the determination of crystallinity index and degree of surface crystallinity. Adsorption of methylene blue was optimized by examining the influence of contact time, initial concentration, temperature, and pH value. It was found that the more ordered structure of cotton and cotton/polyester yarns leads to lower adsorption capacities and better agreement with pseudo-second order kinetic and Langmuir isotherm model, while the more heterogeneous structure of flax and hemp fibers show higher capacities for methylene blue adsorption, better described by the pseudo-first order kinetic and Freundlich isotherm model. Based on the obtained results, waste lignocellulosic fibers and yarns can be utilized for the discoloration of wastewater, thereby solving the problem of waste generated in the textile industry.","PeriodicalId":17489,"journal":{"name":"Journal of The Serbian Chemical Society","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68515961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The influence of geological setting and land use on the physical and chemical properties of the soil at the Fruska gora Mountain 地质环境和土地利用对弗鲁斯卡戈拉山土壤理化性质的影响

IF 1 4区化学

Journal of The Serbian Chemical Society Pub Date : 2023-01-01 DOI: 10.2298/jsc221221012g

M. Kašanin-Grubin, G. Veselinović, Nevena Antić, G. Gajica, S. Stojadinović, A. Šajnović, S. Štrbac

{"title":"The influence of geological setting and land use on the physical and chemical properties of the soil at the Fruska gora Mountain","authors":"M. Kašanin-Grubin, G. Veselinović, Nevena Antić, G. Gajica, S. Stojadinović, A. Šajnović, S. Štrbac","doi":"10.2298/jsc221221012g","DOIUrl":"https://doi.org/10.2298/jsc221221012g","url":null,"abstract":"Soil erosion is a problem that affects the landscape at different scales and represents a serious challenge for land management and soil conservation in both natural forests and meadows. The aim of this study was to determine how the parent material and land use affect the physical and chemical properties of the soil in the area of the Fruska gora Mountain. The soils were developed on five bedrock types: serpentinite, marl, trachyte, shale, loess and two land use types: forest and meadow. Twenty-three forest soil and 24 meadow soil from a depth of 0-20 cm were sampled from the Fruska gora Mt. Following properties were determined: pH, electrical conductivity, oxidation-reduction potential, content of organic carbon, sodium adsorption ratio, aggregate size and stability. There is no statistically significant difference in pH, Eh, EC, and SAR values between the analyzed forest and meadow soils, but there is a statistically significant difference in the content of Corg. It can be conculded that both the parent matrial, and to a slightly less extent, land use have a great influence on physico-chemical properties of the soil.","PeriodicalId":17489,"journal":{"name":"Journal of The Serbian Chemical Society","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68516079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chemically-assisted DNA transfection methods-an overview 化学辅助DNA转染方法综述

IF 1 4区化学

Journal of The Serbian Chemical Society Pub Date : 2023-01-01 DOI: 10.2298/jsc221222019b

Sofija Bekic, S. Jovanović-Šanta

{"title":"Chemically-assisted DNA transfection methods-an overview","authors":"Sofija Bekic, S. Jovanović-Šanta","doi":"10.2298/jsc221222019b","DOIUrl":"https://doi.org/10.2298/jsc221222019b","url":null,"abstract":"Non-viral chemical-based methods for in vitro cell transfection are commonly used to incorporate foreign gene of interest into mammalian cells due to numerous benefits - high efficiency, low cost and simple methodology. These powerful transfection methods generally do not possess safety risks as virus-based, and cell toxicity is significantly reduced. To obtain transfectants, host cells are usually treated with biocompatible DNA carriers such as calcium phosphate, cationic lipids, DEAE-dextran, polyethylenimine or dendrimers, classifying these methods based on chemical reagents used. All these different approaches are based on the similar principle, formation of encapsulated amphiphilic complexes between DNA and various particles, following cell uptake, most likely mediated by endocytosis. Depending on the aim and design of experiment, the choice of appropriate method is made. This review article outlines strategies of the most widely used chemical transfection techniques, pointing out advantages and limitations of different DNA carriers, as well as findings of researchers how to optimize and enhance efficiency of gene delivery procedure. With methodology constantly being improved, transfection methods described here find their main, biomedical application in gene therapy, a promising way to introduce functional copy of exogenous gene to genetically defective target cells.","PeriodicalId":17489,"journal":{"name":"Journal of The Serbian Chemical Society","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68516247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and antiproliferative activity of new thiazole hybrids with [3.3.0]furofuranone or tetrahydrofuran scaffolds 以[3.3.0]呋喃或四氢呋喃为支架的新型噻唑杂合体的合成及抗增殖活性研究

IF 1 4区化学

Journal of The Serbian Chemical Society Pub Date : 2023-01-01 DOI: 10.2298/jsc221130002k

V. Kojić, Miloš Svirčev, Sanja Djokić, Ivana Kovacevic, M. Rodić, Bojana Sreco-Zelenovic, V. Popsavin, Mirjana Popsavin

{"title":"Synthesis and antiproliferative activity of new thiazole hybrids with [3.3.0]furofuranone or tetrahydrofuran scaffolds","authors":"V. Kojić, Miloš Svirčev, Sanja Djokić, Ivana Kovacevic, M. Rodić, Bojana Sreco-Zelenovic, V. Popsavin, Mirjana Popsavin","doi":"10.2298/jsc221130002k","DOIUrl":"https://doi.org/10.2298/jsc221130002k","url":null,"abstract":"New thiazole hybrids were synthesized and evaluated for their in vitro cytotoxicity against a panel of human malignant cell lines. The key steps in the synthesis of hybrids 3-7 involved the initial condensation of appropriate aldononitriles with cysteine ethyl ester hydrochloride, followed by subsequent treatment of resulting thiazolines with DBU to form the thiazole ring. Bioiso-steres 8 and 14 have been prepared after the stereoselective addition of 2-(tri-methylsilyl)thiazole to the hemiacetals obtained by periodate cleavage of terminal diol functionality in the suitably protected D-glucose derivatives. The obtained analogues showed various antiproliferative activities in the cultures of several tumour cell lines. Hybrid 6 was the most potent in HeLa cells, exhibiting more than 10 and 4 times stronger activity than both leads 1 and 2, respectively. The most active compound in Raji cells was hybrid 12, which was nearly 2-fold more potent than the clinical antitumour drug doxorubicin. All analogues were more potent in A549 cells with respect to lead 1, while compounds 6 and 7 were slightly more active than DOX. Preliminary SAR analysis revealed that the presence of a cinnamate group at the C-3 position in analogues of type 7 increases the activity of resulting molecular hybrids.","PeriodicalId":17489,"journal":{"name":"Journal of The Serbian Chemical Society","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68516261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and antiproliferative activity of (5R)-cleistenolide and analogues (5R)-丁香烯内酯及其类似物的合成及抗增殖活性研究

IF 1 4区化学

Journal of The Serbian Chemical Society Pub Date : 2023-01-01 DOI: 10.2298/jsc230126018f

引用次数: 0

Quantum-mechanical study of the electronic properties of UxPuyOz compounds formed during the recovery of spent nuclear fuel 废核燃料回收过程中形成的UxPuyOz化合物电子特性的量子力学研究

IF 1 4区化学

Journal of The Serbian Chemical Society Pub Date : 2023-01-01 DOI: 10.2298/jsc230213038g

A. Galashev, A. Vorob’ev, Y. Zaikov

引用次数: 0