Pub Date : 2023-11-26DOI: 10.18466/cbayarfbe.1327271
Sevtap Çağlar Yavuz, Emre Yavuz, Serkan Dayan
Nanomaterials have been used in catalytic degradation of organic pollutants also act as catalysts in for many years. Due to excellent catalytic performances of metal-based nanoparticles, these materials have been used extensively in various hybrid catalyst synthesis. The main subject of this study, heterogeneous catalysis is a low cost and multi-purpose process for many pollutants. Catalytic degradation of organic pollutants such as; 2-Nitrophenol, Quinolin Yellow and Rhodamine B was investigated by using Ni, Co, Pd nanoparticles modified SiO2 based nanomaterials. The co-doping effect on the prepared nanomaterials has been investigated with different characterization methods in terms of structural and morphological features: scanning electron microscopy, UV/Vis absorption spectroscopy, energy-dispersive X-ray spectroscopy and foruier-transform infrared spectroscopy. The highest catalytic reduction efficiencies (97.6% and 97.5%) for 2-nitrophenol and Rhodamine B was obtained by Pd-PEG-AP@SiO2 respectively. The synthesized Co-PEG-AP@SiO2 illustrated higher catalytic reduction efficiency for Quinolin Yellow (70.1%) at the end of 60s. The prepared M-PEG-AP@SiO2 nanomaterial (M: Pd,Co,Ni) can be able to utilized degradation of organic contaminants effectively.
多年来，纳米材料一直被用作催化降解有机污染物的催化剂。由于金属基纳米颗粒具有出色的催化性能，这些材料已被广泛用于各种混合催化剂合成。本研究的主要课题--异相催化是一种针对多种污染物的低成本、多用途工艺。通过使用镍、钴、钯纳米颗粒修饰的二氧化硅纳米材料，研究了 2-硝基苯酚、喹啉黄和罗丹明 B 等有机污染物的催化降解。通过扫描电子显微镜、紫外/可见吸收光谱、能量色散 X 射线光谱和傅立叶变换红外光谱等不同的表征方法，研究了共掺杂对所制备纳米材料结构和形态特征的影响。Pd-PEG-AP@SiO2 对 2-硝基苯酚和罗丹明 B 的催化还原效率最高（分别为 97.6% 和 97.5%）。合成的 Co-PEG-AP@SiO2 在 60 秒结束时对喹啉黄的催化还原效率更高（70.1%）。所制备的 M-PEG-AP@SiO2 纳米材料（M：Pd、Co、Ni）能够有效地降解有机污染物。
{"title":"Microwave-Assisted Fabrication of Pd, Co and Ni Nanoparticles Modified-SiO2; as Catalysts in the Reduction Reaction of Organic Pollutants","authors":"Sevtap Çağlar Yavuz, Emre Yavuz, Serkan Dayan","doi":"10.18466/cbayarfbe.1327271","DOIUrl":"https://doi.org/10.18466/cbayarfbe.1327271","url":null,"abstract":"Nanomaterials have been used in catalytic degradation of organic pollutants also act as catalysts in for many years. Due to excellent catalytic performances of metal-based nanoparticles, these materials have been used extensively in various hybrid catalyst synthesis. The main subject of this study, heterogeneous catalysis is a low cost and multi-purpose process for many pollutants. Catalytic degradation of organic pollutants such as; 2-Nitrophenol, Quinolin Yellow and Rhodamine B was investigated by using Ni, Co, Pd nanoparticles modified SiO2 based nanomaterials. The co-doping effect on the prepared nanomaterials has been investigated with different characterization methods in terms of structural and morphological features: scanning electron microscopy, UV/Vis absorption spectroscopy, energy-dispersive X-ray spectroscopy and foruier-transform infrared spectroscopy. The highest catalytic reduction efficiencies (97.6% and 97.5%) for 2-nitrophenol and Rhodamine B was obtained by Pd-PEG-AP@SiO2 respectively. The synthesized Co-PEG-AP@SiO2 illustrated higher catalytic reduction efficiency for Quinolin Yellow (70.1%) at the end of 60s. The prepared M-PEG-AP@SiO2 nanomaterial (M: Pd,Co,Ni) can be able to utilized degradation of organic contaminants effectively.","PeriodicalId":9653,"journal":{"name":"Celal Bayar Üniversitesi Fen Bilimleri Dergisi","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139236046","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}
Pub Date : 2023-11-22DOI: 10.18466/cbayarfbe.1258484
Sohayb Abdulkerim, Mohammed QADDOORİ HAMMOODİ, Mussaab M. Alshbib
Recently several resources of sustainable and clean energy have been developed, such as solar panels, wind turbines, and others. The Solar Chimney Power Plant (SCPP), which is among those harnessing solar power where a stream of air is induced by adding heat through solar irradiation using the greenhouse effect, is rarely utilized for generating power. The hot air flows through the chimney under the effect of buoyancy force which in turn drives a vertical axis wind turbine. Although this technique is investigated by many reports, unfortunately, it is still in the laboratory phase. However, it might be an optimal solution for zones where operating other techniques is not efficient for various reasons. In this project, an SCPP prototype was built and tested in Anbar, a central province in Iraq. The impact of various design parameters on power generation was assessed. The experimental results prove the feasibility of SCPPs for generating electricity at low costs and the suitability of building SCPPs in countries technologically less developed with specific weather conditions and scarcity in water resources that are normally needed for cleaning solar panels, for example.
{"title":"Building and Experimenting Solar Chimney Power Plant","authors":"Sohayb Abdulkerim, Mohammed QADDOORİ HAMMOODİ, Mussaab M. Alshbib","doi":"10.18466/cbayarfbe.1258484","DOIUrl":"https://doi.org/10.18466/cbayarfbe.1258484","url":null,"abstract":"Recently several resources of sustainable and clean energy have been developed, such as solar panels, wind turbines, and others. The Solar Chimney Power Plant (SCPP), which is among those harnessing solar power where a stream of air is induced by adding heat through solar irradiation using the greenhouse effect, is rarely utilized for generating power. The hot air flows through the chimney under the effect of buoyancy force which in turn drives a vertical axis wind turbine. Although this technique is investigated by many reports, unfortunately, it is still in the laboratory phase. However, it might be an optimal solution for zones where operating other techniques is not efficient for various reasons. In this project, an SCPP prototype was built and tested in Anbar, a central province in Iraq. The impact of various design parameters on power generation was assessed. The experimental results prove the feasibility of SCPPs for generating electricity at low costs and the suitability of building SCPPs in countries technologically less developed with specific weather conditions and scarcity in water resources that are normally needed for cleaning solar panels, for example.","PeriodicalId":9653,"journal":{"name":"Celal Bayar Üniversitesi Fen Bilimleri Dergisi","volume":"21 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139248352","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}
Pub Date : 2023-11-22DOI: 10.18466/cbayarfbe.1292919
Mehzat Altun, Zerife Orhan
In recent years, it is essential to discover safe and effective antibacterial drugs because of rising antibiotic-resistant bacteria. In traditional medicine, plant extracts including biological active components have been used for therapeutic purposes. We aimed to evaluate the antimicrobial properties of the aqueous seed extract of Momordica charantia (M.charantia) on 9 pathogenic bacteria. The antibacterial activity of the extract was assessed against strains using disc diffusion and broth microdilution tests. A total of 21 constituents were identified from M.charantia seeds. Alcohols, esters, aldehydes, monoterpenes, and monoterpenoids were found as the prevalent groups. The seed extract showed the greatest antimicrobial activity on B.subtilis and S.aureus with an inhibition zone diameter (IZD) value of 15.75±0.50 mm and 15.25±0.957 mm, respectively. The minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) test results ranged from 12.5 to 100 (mg/mL). The seed extract of M.charantia could be used for the cure of bacterial infections as a new natural drug.
{"title":"Determination of phytochemical and antibacterial properties of Momordica charantia seed extracts","authors":"Mehzat Altun, Zerife Orhan","doi":"10.18466/cbayarfbe.1292919","DOIUrl":"https://doi.org/10.18466/cbayarfbe.1292919","url":null,"abstract":"In recent years, it is essential to discover safe and effective antibacterial drugs because of rising antibiotic-resistant bacteria. In traditional medicine, plant extracts including biological active components have been used for therapeutic purposes. We aimed to evaluate the antimicrobial properties of the aqueous seed extract of Momordica charantia (M.charantia) on 9 pathogenic bacteria. The antibacterial activity of the extract was assessed against strains using disc diffusion and broth microdilution tests. A total of 21 constituents were identified from M.charantia seeds. Alcohols, esters, aldehydes, monoterpenes, and monoterpenoids were found as the prevalent groups. The seed extract showed the greatest antimicrobial activity on B.subtilis and S.aureus with an inhibition zone diameter (IZD) value of 15.75±0.50 mm and 15.25±0.957 mm, respectively. The minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) test results ranged from 12.5 to 100 (mg/mL). The seed extract of M.charantia could be used for the cure of bacterial infections as a new natural drug.","PeriodicalId":9653,"journal":{"name":"Celal Bayar Üniversitesi Fen Bilimleri Dergisi","volume":"104 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139249546","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}
Pub Date : 2023-11-07DOI: 10.18466/cbayarfbe.1367147
M. Akyol
Parastigmaeus urmiaensis Mohammad Doustaresharaf and Bagheri, 2019 is founded for the first time from Türkiye and new report to genus Parastigmaeus the mite fauna of Türkiye. One female specimen of the species is collected from soil and litter under Spartium junceum (Fabaceae) Manisa province, Türkiye. P. urmiaensis is redescribed and illustrated based on the adult female.
Parastigmaeus urmiaensis Mohammad Doustaresharaf 和 Bagheri，2019 年首次发现于土耳其，是土耳其螨类群中 Parastigmaeus 属的新报告。该物种的一个雌性标本采集自土耳其马尼萨省Spartium junceum（豆科）下的土壤和垃圾。根据这只成年雌螨对 P. urmiaensis 进行了重新描述并绘制了插图。
{"title":"A New Record of Genus Parastigmaeus (Acariformes: Stigmaeidae) from Türkiye","authors":"M. Akyol","doi":"10.18466/cbayarfbe.1367147","DOIUrl":"https://doi.org/10.18466/cbayarfbe.1367147","url":null,"abstract":"Parastigmaeus urmiaensis Mohammad Doustaresharaf and Bagheri, 2019 is founded for the first time from Türkiye and new report to genus Parastigmaeus the mite fauna of Türkiye. One female specimen of the species is collected from soil and litter under Spartium junceum (Fabaceae) Manisa province, Türkiye. P. urmiaensis is redescribed and illustrated based on the adult female.","PeriodicalId":9653,"journal":{"name":"Celal Bayar Üniversitesi Fen Bilimleri Dergisi","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139286949","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}
Pub Date : 2023-11-06DOI: 10.18466/cbayarfbe.1324800
Savaş Evran
This numerical and statistical study deals with the evaluate the effects of forces and material types on safety factor and equivalent alternating stress of beams made of metal materials. Numerical calculations were performed by using ANSYS Workbench software. Design of analyzes based on different control factors was determined utilizing Taguchi L9 orthogonal array design consisting of two control factors consisting of three levels. The first and second control factors were chosen as applied force and material type, respectively. In the finite element modeling, beams with clamped-free boundary conditions were considered. Determination of optimal levels of all variable control factors was found using signal-to-noise ratio analysis. The contribution rate and significance level of all control factors on the safety factor and equivalent alternating stress were calculated utilizing analysis of variance. According to the results calculated from this study, the optimum results for safety factor and equivalent alternating stress of beams were obtained by using the first levels of all control factors. While the increase in the applied force values causes a decrease in the safety factor, it leads to an increase in the equivalent alternating stress.
{"title":"Effects of Forces and Material Types on Fatigue Analysis of Beams","authors":"Savaş Evran","doi":"10.18466/cbayarfbe.1324800","DOIUrl":"https://doi.org/10.18466/cbayarfbe.1324800","url":null,"abstract":"This numerical and statistical study deals with the evaluate the effects of forces and material types on safety factor and equivalent alternating stress of beams made of metal materials. Numerical calculations were performed by using ANSYS Workbench software. Design of analyzes based on different control factors was determined utilizing Taguchi L9 orthogonal array design consisting of two control factors consisting of three levels. The first and second control factors were chosen as applied force and material type, respectively. In the finite element modeling, beams with clamped-free boundary conditions were considered. Determination of optimal levels of all variable control factors was found using signal-to-noise ratio analysis. The contribution rate and significance level of all control factors on the safety factor and equivalent alternating stress were calculated utilizing analysis of variance. According to the results calculated from this study, the optimum results for safety factor and equivalent alternating stress of beams were obtained by using the first levels of all control factors. While the increase in the applied force values causes a decrease in the safety factor, it leads to an increase in the equivalent alternating stress.","PeriodicalId":9653,"journal":{"name":"Celal Bayar Üniversitesi Fen Bilimleri Dergisi","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139288373","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}
Pub Date : 2023-10-21DOI: 10.18466/cbayarfbe.1338606
Gönül Serdar
In this study, pomegranate (Punica granatum L.) leaf extract and 2% (w/v) aqueous solutions isolated by SFE extraction and microwave extraction were used to create silver nanoparticles (AgNPs). The pomegranate was grown in Turkey's Eastern Black Sea region. AgNO3 solution (0.25, 0.5, and 1 mM) received separate additions of 0.1 and 0.2 mL extract before being microwave-irradiated. Ag nanoparticles made using green chemical techniques were characterized by UV-Visible, , XRD, TEM, Zetasizer and FT-IR. By analyzing the plasmon resonance absorption (SPR) spectra by the UV-Visible technique, the ideal circumstances were identified. The face-centered cubic crystalline silver nanostructures' lattice planes (111), (200), (220), and (311) show that the different Bragg reflection peaks occurred at 2 values of 38.1°, 44.3°, 64.6°, and 77.6°. The average particle size of Ag nanoparticles produced by microwave extraction in an aqueous medium was 86.020.5788 nm, the zeta potential was -140.777 mV, and the polydispersity index was 0.4050.224, according to the results of zeta-Sizer study. The UV-vis absorption spectra of the AuNP solutions, which were kept in a refrigerator, barely altered and remained constant for roughly 4-5 months.
{"title":"Green Biosynthesis of Silver Nanoparticles were Obtained from the Extract of Pomegranate (Punica granatum L.) Leaves by Supercritical Extraction Using Microwave Method","authors":"Gönül Serdar","doi":"10.18466/cbayarfbe.1338606","DOIUrl":"https://doi.org/10.18466/cbayarfbe.1338606","url":null,"abstract":"In this study, pomegranate (Punica granatum L.) leaf extract and 2% (w/v) aqueous solutions isolated by SFE extraction and microwave extraction were used to create silver nanoparticles (AgNPs). The pomegranate was grown in Turkey's Eastern Black Sea region. AgNO3 solution (0.25, 0.5, and 1 mM) received separate additions of 0.1 and 0.2 mL extract before being microwave-irradiated. Ag nanoparticles made using green chemical techniques were characterized by UV-Visible, , XRD, TEM, Zetasizer and FT-IR. By analyzing the plasmon resonance absorption (SPR) spectra by the UV-Visible technique, the ideal circumstances were identified. The face-centered cubic crystalline silver nanostructures' lattice planes (111), (200), (220), and (311) show that the different Bragg reflection peaks occurred at 2 values of 38.1°, 44.3°, 64.6°, and 77.6°. The average particle size of Ag nanoparticles produced by microwave extraction in an aqueous medium was 86.020.5788 nm, the zeta potential was -140.777 mV, and the polydispersity index was 0.4050.224, according to the results of zeta-Sizer study. The UV-vis absorption spectra of the AuNP solutions, which were kept in a refrigerator, barely altered and remained constant for roughly 4-5 months.","PeriodicalId":9653,"journal":{"name":"Celal Bayar Üniversitesi Fen Bilimleri Dergisi","volume":"34 4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139315823","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}
Pub Date : 2023-09-21DOI: 10.18466/cbayarfbe.1336250
M. B. Batır
Abstract: At the core of gene therapy lies the use of viral vectors, engineered viruses serving as delivery vehicles to transport restorative genes into target cells. Therefore, the effect of 7 different rAAV serotypes and their different quantites was analysis here on human prostate cancer cell lines PC-3 and DU-145, which are hard to be transfected. PC-3 and DU-145 cell lines were infected with different multiplicity of infection (MOI) ratios of 7 rAAV serotypes, AAV 2/1, 2/2, 2/3, 2/5, 2/6, and 2/9, which were expressing the green fluorescent protein (GFP) transgene driven by the CMV promoter. The transduction efficiency was analyzed by fluorescent microscopy and flow cytometry. In addition, the cell viability of the infected cells was measured by Muse Cell Analyzer at the MOI of 10.000. rAAV 2/2 and rAAV 2/6 have the most significant ability to transduce PC-3 cells. Although rAAV 2/2 and rAAV 2/6 were also the most transducing serotypes in the DU-145 cell line, the transduction rates did not exceed 20% in this cell line. On the other hand, after viral infection, no difference in cell viability was observed in PC-3 cells compared to the mock group, while a significant decrease in viability was observed in DU-145 cells. This study determined the transduction efficiency of 7 different rAAV serotypes on human cancer cell lines. While rAAV 2/2 and rAAV 2/6 serotypes achieved more than 60% transduction efficiency in PC-3 cells, the transduction efficiency could not exceed 20% in DU-145 cells. Overall, this study demonstrated that rAAV 2/2 and rAAV 2/6 could mediate the expression of a transgene with a high transduction efficiency.
{"title":"Recombinant Adeno-Associated Viral Vector Transduction of Human Prostate Cancer Cell Lines","authors":"M. B. Batır","doi":"10.18466/cbayarfbe.1336250","DOIUrl":"https://doi.org/10.18466/cbayarfbe.1336250","url":null,"abstract":"Abstract: At the core of gene therapy lies the use of viral vectors, engineered viruses serving as delivery vehicles to transport restorative genes into target cells. Therefore, the effect of 7 different rAAV serotypes and their different quantites was analysis here on human prostate cancer cell lines PC-3 and DU-145, which are hard to be transfected. PC-3 and DU-145 cell lines were infected with different multiplicity of infection (MOI) ratios of 7 rAAV serotypes, AAV 2/1, 2/2, 2/3, 2/5, 2/6, and 2/9, which were expressing the green fluorescent protein (GFP) transgene driven by the CMV promoter. The transduction efficiency was analyzed by fluorescent microscopy and flow cytometry. In addition, the cell viability of the infected cells was measured by Muse Cell Analyzer at the MOI of 10.000. rAAV 2/2 and rAAV 2/6 have the most significant ability to transduce PC-3 cells. Although rAAV 2/2 and rAAV 2/6 were also the most transducing serotypes in the DU-145 cell line, the transduction rates did not exceed 20% in this cell line. On the other hand, after viral infection, no difference in cell viability was observed in PC-3 cells compared to the mock group, while a significant decrease in viability was observed in DU-145 cells. This study determined the transduction efficiency of 7 different rAAV serotypes on human cancer cell lines. While rAAV 2/2 and rAAV 2/6 serotypes achieved more than 60% transduction efficiency in PC-3 cells, the transduction efficiency could not exceed 20% in DU-145 cells. Overall, this study demonstrated that rAAV 2/2 and rAAV 2/6 could mediate the expression of a transgene with a high transduction efficiency.","PeriodicalId":9653,"journal":{"name":"Celal Bayar Üniversitesi Fen Bilimleri Dergisi","volume":"66 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139338100","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}
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