Open Journal of Nano最新文献

Colloidal Silica Production with Resin from Sodium Silicate and Optimization of Process 用硅酸钠树脂生产胶体二氧化硅及优化工艺

Open Journal of Nano Pub Date : 2024-01-01 DOI: 10.56171/ojn.1402531

Buse Akkaya, Jiyan Aslan, Rukiye Taşdemi̇r, İlker Erdem, Mehmet Gönen

引用次数: 0

Investigation of the Effect of Huntit Filler on Flame Retardancy and Mechanical Properties of Silicone Rubber-based Materials in Cable Applications 研究 Huntit 填充剂对电缆应用中硅橡胶基材料阻燃性和机械性能的影响

Open Journal of Nano Pub Date : 2023-12-18 DOI: 10.56171/ojn.1400079

Halil Can Uğraşkan, Fatma Sevde Duman, S. Emik

{"title":"Investigation of the Effect of Huntit Filler on Flame Retardancy and Mechanical Properties of Silicone Rubber-based Materials in Cable Applications","authors":"Halil Can Uğraşkan, Fatma Sevde Duman, S. Emik","doi":"10.56171/ojn.1400079","DOIUrl":"https://doi.org/10.56171/ojn.1400079","url":null,"abstract":"Silicone rubber is an organic/inorganic hybrid macromolecular polymer with properties such as fire resistance, strength, flexibility, chemical resistance, thermal stability, hydrophobicity, dielectric characteristics, resistance to environmental conditions, and biocompatibility. It is an elastomer and exhibits high-performance characteristics compared to most materials in its class. Its current properties and the relative ease of enhancing its characteristics have significantly increased the industrial utilization of silicone rubber. Due to its mineral structure, silicone rubber is frequently used as an insulating material to ensure circuit integrity in the production of fire-resistant cables. It exhibits low smoke zero halogen (LSZH) characteristics, with low level release of toxic gases as a result of combustion reactions. In this study, silicone rubber compounds including a natural mineral Huntite with improved fire-resistant properties compared to standard silicone materials suitable for cable production were prepared. After cable production the fire performance properties alongside the physico-mechanical characteristics of the final products were examined. To determine the flame retardancy of the material, limiting oxygen index (LOI%) and fire performance tests were performed according to the ISO 4589-2 and BS 6387 standards, respectively. The results show that Huntite is a suitable alternative material to improve silicone materials' flame resistance.","PeriodicalId":448411,"journal":{"name":"Open Journal of Nano","volume":"22 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139174248","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: 0

Al-5Ti-0,2B ve Al-5Ti-1B Tane İncelticilerin AA 1050 Alüminyum Alaşımının Mekanik Özellikleri Üzerine Etkileri Al-5Ti-0,2B 和 Al-5Ti-1B 晶粒细化剂对 AA 1050 铝合金机械性能的影响

Open Journal of Nano Pub Date : 2023-12-05 DOI: 10.56171/ojn.1395366

Tuğçe Yunak, Erhan Duru, Samet Sevi̇nç, S. Aslan

{"title":"Al-5Ti-0,2B ve Al-5Ti-1B Tane İncelticilerin AA 1050 Alüminyum Alaşımının Mekanik Özellikleri Üzerine Etkileri","authors":"Tuğçe Yunak, Erhan Duru, Samet Sevi̇nç, S. Aslan","doi":"10.56171/ojn.1395366","DOIUrl":"https://doi.org/10.56171/ojn.1395366","url":null,"abstract":"Öz – Bu kapsamlı çalışma, tane incelticilerin alüminyum alaşımlarının üzerindeki etkisini araştırmakta ve hem alaşım geliştirme hem de çeşitli endüstriyel uygulamalar için önemli çıkarımlar ortaya koymaktadır. Araştırmada, alüminyum levhalar üretmede hassasiyeti ve verimliliği ile tanınan ikiz merdaneli döküm metodundan yararlanılmıştır. İncelenen alaşımların kimyasal bileşiminin kesin olarak anlaşılması için spektrometrik analiz kullanılmıştır. Araştırma daha sonra Al-5Ti-0,2B ve Al-5Ti-1B olan iki farklı tane incelticili 1050 alüminyum alaşımının mikroyapı ve mekanik incelemesine girmektedir. Bu alaşımlar gelişmiş optik mikroskop ve SEM altında incelenmiş ve mekanik özelliklerinin bütünsel bir değerlendirmesini sağlamak için de sertlik analizi yapılmıştır. Sonuçlar, Al-5Ti-1B alaşımında daha fazla bulunan borun belirgin etkisini ortaya çıkarmıştır. Bu alaşımı SEM analizinde incelediğimizde intermetalik yapıların azaldığını ve daha homojen bir yapının ortaya çıktığı net bir şekilde görülmüştür. Bunun ile birlikte optik mikroskop görüntülerinde tane boyutlarının küçüldüğü ve daha tanecikli bir yapı oluşmasına sebebiyet vermesinin yanında akma, çekme ve sertlik değerinin artması Al-5Ti-1B alaşımının mikroyapı ve mekanik özelliklerindeki iyileşmelerin net bir göstergesi haline gelmiştir. Mikroyapıda elde edilen bu gelişmeler ile özellikle ikiz merdane döküm tekniği ile üretilen malzemelerde eloksallama yüzey işleminin uygulanabilirliğini ortaya koymuştur.","PeriodicalId":448411,"journal":{"name":"Open Journal of Nano","volume":"97 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138985093","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: 0

Effect of Different Passivation Treatments on Alkali Zn-Ni Coatings: Corrosion Resistance and Adhesion Performance of Geomet 321 and ML Black Coatings 不同钝化处理对碱性锌镍镀层的影响：Geomet 321 和 ML 黑色涂层的耐腐蚀性和附着性能

Open Journal of Nano Pub Date : 2023-11-14 DOI: 10.56171/ojn.1363454

İbrahim Usta, Oğuz Yilmaz, Minel Gül, Ahmet Can, Harun Gül

{"title":"Effect of Different Passivation Treatments on Alkali Zn-Ni Coatings: Corrosion Resistance and Adhesion Performance of Geomet 321 and ML Black Coatings","authors":"İbrahim Usta, Oğuz Yilmaz, Minel Gül, Ahmet Can, Harun Gül","doi":"10.56171/ojn.1363454","DOIUrl":"https://doi.org/10.56171/ojn.1363454","url":null,"abstract":"This study aims to improve the corrosion properties of iron materials used in the automotive industry. For this purpose, two different coating techniques were applied to the same surface. As part of the research, different passivation processes (transparent, blue, yellow, and black) were applied to alkaline Zn-Ni coatings. Geomet 321 and Geomet ML Black coatings were deposited on the passivation layer to form a double-layer coating. In order to investigate the adhesion and corrosion effects of these coatings, a dry adhesion test, a water test, a humidity test, and a salt spray/spray test were carried out, and cross-cut adhesion tests were carried out after each corrosion test. After all these tests, rust formation was analyzed by visual analysis, and atomic weight percentages and coating thicknesses were examined by X-ray. Geomet 321 and ML Black coatings, which were tested using different passivation processes, successfully passed. The transparent passivation after the Zn-Ni coating fully satisfied both adhesion and corrosion protection requirements for the 321 and ML Black coatings. No red rust formation was observed on the coating samples after the test; only partial white rust formation was observed, and no peeling of the coating layer was detected in the adhesion tests. As a result, the most favorable results were obtained for the transparent, blue, and black passivated coatings.","PeriodicalId":448411,"journal":{"name":"Open Journal of Nano","volume":"2011 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139276831","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: 0

The Effect of 1-hydroxybenzotriazole on the Decolorization of Anthraquinone and Diazo Dyes Using Peroxidase Enzyme 1-hydroxybenzotriazole 对使用过氧化物酶使蒽醌和重氮染料脱色的影响

Open Journal of Nano Pub Date : 2023-11-05 DOI: 10.56171/ojn.1364230

Mithat Çelebi, M. Altikatoğlu

引用次数: 0

Sıvı kristaller ve nanopartikül arasındaki etkileşimlerin belirlenmesi üzerine çalışma: Nanopartikül katkılı sıvı kristallerin floresan spektrumları

Open Journal of Nano Pub Date : 2023-03-28 DOI: 10.56171/ojn.1225833

{"title":"Sıvı kristaller ve nanopartikül arasındaki etkileşimlerin belirlenmesi üzerine çalışma: Nanopartikül katkılı sıvı kristallerin floresan spektrumları","authors":"","doi":"10.56171/ojn.1225833","DOIUrl":"https://doi.org/10.56171/ojn.1225833","url":null,"abstract":"Liquid crystals, which are between the solid state of matter and the liquid state, are materials with interesting molecular structures. They are molecular materials that show both the properties of solid crystals and the properties of liquids. Materials whose physical properties change depending on the particle size, whose dimensions are at the nanometer level, are nanoparticles. Nanoparticles can be produced in many different types, depending on their size and structural shape. We obtained fluorescence graphs by combining liquid crystals and nanoparticles in solvents with three different characteristics. The liquid crystals we used in this study are 4-Pentylphenyl 4-Methoxybenzoate (4PP4MetoxB), 4-Pentylphenyl 4-Pentylbenzote (4PP4PentB), and 4-Pentylphenyl 4-(Octyloxy)Benzoate (4PP4OctoxB). Other materials we use are ZnS, CdSe, and CdS nanoparticles. We created new materials by combining these liquid crystals and nanoparticles in solvents. We examined whether the liquid crystals and nanoparticles in the newly formed materials interact in solvents and how the fluorescence graphs change according to the fluorescence graphs of liquid crystals.","PeriodicalId":448411,"journal":{"name":"Open Journal of Nano","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115303891","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: 0

Sonochemical Removal of Highly Toxic Aqueous Cd2+ and Cr6+ Ions Using Dandelion-like Co3O4 Nanoflowers 用类似蒲公英的Co3O4纳米花声化学去除水中高毒性Cd2+和Cr6+离子

Open Journal of Nano Pub Date : 2023-01-05 DOI: 10.56171/ojn.1192105

Elif Aybike Berberoğlu, M. M. Koç, N. Kurnaz Yetim, Cemile Özcan

引用次数: 1

Miyeloid Lösemi Tedavisinde Etkili Bir İlaç Olan Midostaurinin Moleküler Kenetlenme Çalışması

Open Journal of Nano Pub Date : 2022-07-14 DOI: 10.56171/ojn.1102513

Sefa Celik, Gözde Yılmaz, A. Özel, Sevim Akyüz

{"title":"Miyeloid Lösemi Tedavisinde Etkili Bir İlaç Olan Midostaurinin Moleküler Kenetlenme Çalışması","authors":"Sefa Celik, Gözde Yılmaz, A. Özel, Sevim Akyüz","doi":"10.56171/ojn.1102513","DOIUrl":"https://doi.org/10.56171/ojn.1102513","url":null,"abstract":"Midostaurin (C35H30N4O4), diğer kemoterapi ajanları ile birlikte bazı akut miyeloid lösemi tiplerini tedavi etmek için kullanılan multi-target kinaz inhibitörüdür. Biyoaktif bir molekülün biyoaktivitesini gösterdiği en kararlı konformerinin belirlenmesinin önemi dolayısıyla ilk olarak Midostaurin’in yapısal tercihleri bulunup değerlendirilmiştir. Midostaurin molekülünün konformasyonel analizi, yarı deneysel bir metot olan PM3 kullanılarak yapılmıştır. En kararlı üç konformer ve bunların bağıl enerjileri belirlenmiştir. Bütünleyici bir zar proteini olan Epitermal Büyüme faktörü reseptörü (EGFR) ve aşırı ekspresyonu, çok çeşitli tümörlerin gelişimi ile ilişkilidir. Bu nedenle, EGFR inhibitörleri, EGFR eksprese eden tümörlerin büyümesini önleyerek ve hastaların hayatta kalma oranlarını artırarak antikanser ilaçlar olarak işlev görebilir. Ek olarak, DNA antikanser ilaçlar için önemli bir hedeftir. Midostaurin’in antikanser özelliklerini aydınlatmak için EGFR ve DNA’ya karşı moleküler kenetlenme simülasyonları yapılmıştır. Ligand-hedef reseptör komplekslerinin bağlanma modları ve bağlanma afiniteleri belirlenmiştir. Midostaurin, DNA (ΔG = -8.6 kcal/mol) ve EGFR (ΔG = - 9.6 kcal/mol) ile güçlü bağlanma afinitesi göstermiştir. Sonuçlar, Midostaurin'in önemli anti-tümör etkisini ortaya çıkarmıştır.","PeriodicalId":448411,"journal":{"name":"Open Journal of Nano","volume":"407 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125259518","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: 0

Determination of Metal Content and Biological Activities of Radish Plant Consumed as Turnip by Public in Siirt Region 锡尔特地区公众食用萝卜中金属含量及生物活性测定

Open Journal of Nano Pub Date : 2022-06-30 DOI: 10.56171/ojn.1035703

İ. Teği̇n, Bülent Hallaç, Hasan Özden, M. Fidan

{"title":"Determination of Metal Content and Biological Activities of Radish Plant Consumed as Turnip by Public in Siirt Region","authors":"İ. Teği̇n, Bülent Hallaç, Hasan Özden, M. Fidan","doi":"10.56171/ojn.1035703","DOIUrl":"https://doi.org/10.56171/ojn.1035703","url":null,"abstract":"This study was carried out on turnip (avtitu) obtained from a radish ecotype grown in Eruh region of Siirt. Antioxidant capacities, total phenolic and flavonoid amounts of DPPH (free radical scavenging), Ferric ion reducing antioxidant power (FRAP) analyses were performed in extracts obtained from radish with different solvents. In addition, the metal content of the samples and the elemental analysis of the soil samples taken in the area where they were collected were made. In this study, the content of total phenolic, total flavonoid, DPPH highest % inhibition values and the highest values of the ferric ion reducing antioxidant power (FRAP) were 71.97 ± 14.54 mg / mL Gallic acid equivalents, 298.17 ± 12.81 mg / mL routine equivalent, 66.88% and 3.29 ± 0.01 mg / mL FeSO4 equivalents were detected in the aboveground fractions methanol extract, respectively. Samples of the turnip beverage traditionally produced by the people from the Eruh region of Siirt were randomly obtained from eleven families. Some physicochemical tests such as pH, water activity, Oxidation-Reduction (O / R; Eh) Potential Value, colour analysis, dry matter content and % salt ratio and microbiological tests such as TMAB, yeast, mould, Staphylococcus species, Lactobacillus spp., coliform group bacteria and E. coli were applied to these avtitu samples.","PeriodicalId":448411,"journal":{"name":"Open Journal of Nano","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133592746","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: 0

Optimization of Cutting Parameters Affecting Cutting Force and Surface Roughness in Machining of AISI P20 Die Steel 影响aisip20模具钢切削力和表面粗糙度的切削参数优化

Open Journal of Nano Pub Date : 2022-06-30 DOI: 10.56171/ojn.1039567

Mahir Akgün, Barış Özlü

引用次数: 0