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Synthesis of bis(4-hydroxycoumarin)methanes using nano-CuO/CeO2 as recyclable catalyst 纳米cuo /CeO2催化合成双羟基香豆素甲烷
Asian Journal of Nanoscience and Materials Pub Date : 2021-07-01 DOI: 10.26655/AJNANOMAT.2021.3.1
B. Baghernejad, Saman Parhizgar
{"title":"Synthesis of bis(4-hydroxycoumarin)methanes using nano-CuO/CeO2 as recyclable catalyst","authors":"B. Baghernejad, Saman Parhizgar","doi":"10.26655/AJNANOMAT.2021.3.1","DOIUrl":"https://doi.org/10.26655/AJNANOMAT.2021.3.1","url":null,"abstract":"Coumarin derivatives have been widely utilized as agrochemicals, cosmetics, and pigments, demonstrating broad spectrum biological and pharmacological activities. In this research study, we reported an efficient and environmentally benign one-pot multi–component reaction for the synthesis of bis(4-hydroxylcoumarin) methanes derivatives from the reaction of 4-hydroxycoumarin and aromatic aldehydes in the presence of a catalytic amount of nano- CuO/CeO2. The advantages of this method are including, good yields (92-97%), short reaction times, simple work-up and reusable catalyst. The catalyst could be recycled and reused for five times without much loss in its activity. As is evident from this research study, the best efficiency for the synthesis of bis(4-hydroxylcoumarin) methanes is achieved with the nano-CuO/CeO2 catalyst in the shortest time.","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75463281","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: 2
The reaction of curcumin-hydrazine and its effect on bone marrow mesenchymal stem cells 姜黄素-肼的反应及其对骨髓间充质干细胞的影响
Asian Journal of Nanoscience and Materials Pub Date : 2021-07-01 DOI: 10.26655/AJNANOMAT.2021.3.7
Sabah Salahvarzi, Keyhan Mohammadpour, Zeynab Dadgar
{"title":"The reaction of curcumin-hydrazine and its effect on bone marrow mesenchymal stem cells","authors":"Sabah Salahvarzi, Keyhan Mohammadpour, Zeynab Dadgar","doi":"10.26655/AJNANOMAT.2021.3.7","DOIUrl":"https://doi.org/10.26655/AJNANOMAT.2021.3.7","url":null,"abstract":"In this work, the interaction between curcumin and hydrazine was studied in three different conditions: In the presence of ultrasonic waves, in the absence of ultrasonic waves, and while refluxing and the effects of the produced materials on the livability of bone marrow mesenchymal stem cells were investigated. Various methods including FT-IR, 1H NMR and 13C NMR were utilized to characterize the material. The results revealed that cell treatments with 40 μM dose of all three samples after 24 h were caused to the more biological ability of rat bone marrow mesenchymal stem cells (MSCs). This indicated that these compounds (curcumin-hydrazine) are effective in the livability of bone marrow mesenchymal stem cells (MSCs).","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79106903","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
Hydrothermal synthesis of ZnO nanoparticles and comparison of its adsorption characteristics with the natural adsorbent (mango peel) 水热合成纳米ZnO及其与天然吸附剂(芒果皮)吸附特性的比较
Asian Journal of Nanoscience and Materials Pub Date : 2021-07-01 DOI: 10.26655/AJNANOMAT.2021.3.2
E. Rezaei-Aghdam, A. Shamel, M. Khodadadi-Moghaddam, Gholamreza Ebrahimzadeh-Rajaei, S. Mohajeri
{"title":"Hydrothermal synthesis of ZnO nanoparticles and comparison of its adsorption characteristics with the natural adsorbent (mango peel)","authors":"E. Rezaei-Aghdam, A. Shamel, M. Khodadadi-Moghaddam, Gholamreza Ebrahimzadeh-Rajaei, S. Mohajeri","doi":"10.26655/AJNANOMAT.2021.3.2","DOIUrl":"https://doi.org/10.26655/AJNANOMAT.2021.3.2","url":null,"abstract":"This study focuses on the utilization of ZnO (as synthetic) and mango peel (natural adsorbent)  to remove blue 221 dye from aqueous solutions. First, ZnO nanoparticles (NPs) were synthesized and detected using the descriptor-based techniques, including scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR), N2 adsorption/desorption isotherms (BET), and X-ray diffraction (XRD). Various operational parameters including adsorbent concentration, pH, adsorbent dose, contact time, and stirring speed were investigated. The obtained kinetic results demonstrated great compatibility of the pseudo-second-order model with the experimental data. The effects of thermodynamic parameters were calculated to confirm the endothermic, spontaneous and physical nature of adsorption process. Langmuir and Freundlich isotherm models were utilized to fit the obtained equilibrium data. Freundlich model was found sufficient to explain the adsorption of blue 221 dye by ZnO NPs and mango peel. The results indicated that the ZnO NPs performed better in blue 221 dye removal as compared with mango peel. The mean size of ZnO NPs was found to be 22.16 nm. The specific surface area of ZnO NPs was obtained 26.85 m2.g-1 and pore volume and pore-size were 0.0581 cm3.g-1 and 1.22 nm, respectively. The maximum adsorption capacity of blue 221 dye on ZnO NPs and mango peel was estimated as 133.33 and 476.19 mg.g-1, respectively.","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":"8 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91504671","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: 2
Synthesis WO3 nanoparticle via the electrochemical method and study its super-hydrophobicity properties 采用电化学方法合成纳米WO3颗粒，并研究其超疏水性
Asian Journal of Nanoscience and Materials Pub Date : 2021-05-27 DOI: 10.26655/AJNANOMAT.2021.3.6
F. Piri, Maria Merajoddin, Somayyeh Piri, Zahra Mokarian
{"title":"Synthesis WO3 nanoparticle via the electrochemical method and study its super-hydrophobicity properties","authors":"F. Piri, Maria Merajoddin, Somayyeh Piri, Zahra Mokarian","doi":"10.26655/AJNANOMAT.2021.3.6","DOIUrl":"https://doi.org/10.26655/AJNANOMAT.2021.3.6","url":null,"abstract":"This work introduces a simple method to prepare WO3 nanoparticles via tungsten rod electrooxidation in the presence of NaCl solution as an electrolyte. In this process, WO3 nanoparticles with sizes between 10nm and 20 nm were prepared and characterized using X-ray diffraction (XRD), scanning electron microscope (SEM), and energy dispersive X-ray spectroscopy (EDX) techniques. WO3 nanoparticles are used to modify polysiloxane surface. The WO3 coated polysiloxane surface showed a very high-water contact angle of 158°.","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79520866","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: 2
A review: Application and production of nanoencapsulation in the food sector 综述:纳米胶囊技术在食品领域的应用与生产
Asian Journal of Nanoscience and Materials Pub Date : 2021-05-21 DOI: 10.26655/ajnanomat.2021.3.4
Monika S. Patel, Sunita Mishra
{"title":"A review: Application and production of nanoencapsulation in the food sector","authors":"Monika S. Patel, Sunita Mishra","doi":"10.26655/ajnanomat.2021.3.4","DOIUrl":"https://doi.org/10.26655/ajnanomat.2021.3.4","url":null,"abstract":"Particle encapsulation is a standard process within the food industry that consists of encapsulating particles within a protective layer, to shield a sensitive ingredient or nucleus from adverse reactions. This consists of encapsulating small particle cores within a protective wall this protective layer may preserve the organoleptic and physico-chemical properties of the products also on improve the palatability of volatile odorous ingredients. Encapsulation of flavors and aromas may be a rapidly expanding process within the food industry. Many aroma compounds must to be converted into solid products before its use as flavouring agents. Nano and microencapsulation technology is very promising area in food industry, which can have an excellent impact on a many category of products including functional foods, packaging, preservatives, antioxidants, flavors and fragrances. Finally, a number of the main challenges within the design and fabrication of nanocapsules & its application in food sector and characterization are highlighted.","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78832263","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
Investigation on physical properties of carbon nanotubes prepared by mechanothermal method 机械热法制备碳纳米管的物理性质研究
Asian Journal of Nanoscience and Materials Pub Date : 2021-05-18 DOI: 10.26655/AJNANOMAT.2021.3.3
S. O. Mirabootalebi, Gholam-Hosein Akbari Fakhrabadi, R. M. Babaheydari
{"title":"Investigation on physical properties of carbon nanotubes prepared by mechanothermal method","authors":"S. O. Mirabootalebi, Gholam-Hosein Akbari Fakhrabadi, R. M. Babaheydari","doi":"10.26655/AJNANOMAT.2021.3.3","DOIUrl":"https://doi.org/10.26655/AJNANOMAT.2021.3.3","url":null,"abstract":"Carbon nanotubes (CNTs) have specific physical properties that make them one of the ideal nano-materials for electronics, magnetic, and optical applications. Produced CNTs via mechanothermal method have a springy and coil-like structure, affecting their physical characteristics and distinguishes them from other carbon nanotubes. In this research study, the optical and magnetic properties of fabricated carbon nanotubes by mechanothermal method were investigated. For this purpose, carbon nanotubes were synthesized by heat treatment of ball-milled graphite powders at 1400 ˚C in the atmosphere of argon. The quality and structure of milled-graphite and the CNTs were investigated using X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), transmission electron microscopy (TEM), atomic force microscopy (AFM) and Raman spectroscopy. Then, the optical and magnetic properties of the fabricated CNTs were assessed by UV-VIS spectrometer and vibrating-sample magnetometer (VSM), respectively. The results of the absorption spectra revealed that the products had not any absorption peak at the visible regime. Furthermore, magnetization curves indicate that coercivity (Hci), magnetization (Ms), and retentivity (Mr) of the CNTs were found to be 84.183 G, 20.531, and 0.73511 emu/g, respectively.","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90184975","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
Synthesis of 2-amino-4H-pyran derivatives in aqueous media with nano-SnO2 as recyclable catalyst 以纳米sno2为可回收催化剂在水介质中合成2-氨基- 4h -吡喃衍生物
Asian Journal of Nanoscience and Materials Pub Date : 2021-04-01 DOI: 10.26655/AJNANOMAT.2021.2.7
B. Baghernejad, M. Fiuzat
{"title":"Synthesis of 2-amino-4H-pyran derivatives in aqueous media with nano-SnO2 as recyclable catalyst","authors":"B. Baghernejad, M. Fiuzat","doi":"10.26655/AJNANOMAT.2021.2.7","DOIUrl":"https://doi.org/10.26655/AJNANOMAT.2021.2.7","url":null,"abstract":"A nano-SnO2 catalyzed environmentally benign strategy for the synthesis of 2-amino-4H-pyran derivatives via the multi-component reaction between aryl aldehydes, β-dicarbonyl compounds and malononitrile in aqueous media under reflux conditions in excellent yields is established. The structures of the synthesized compounds were confirmed using IR, 1H-NMR. The elemental analysis and morphology of the catalyst was characterized using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). This one-pot three component protocol provides an efficient improved pathway for the synthesis of pyrans in the terms of short reaction times, simple working up procedure and recyclability of catalyst.","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81213446","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: 3
Multifunctional additive properties of acrylate based ZnO Nano composite for lubricating oil 丙烯酸酯基ZnO纳米复合润滑油的多功能添加剂性能
Asian Journal of Nanoscience and Materials Pub Date : 2021-04-01 DOI: 10.26655/AJNANOMAT.2021.2.6
K. Dey, S. Paul, P. Ghosh
{"title":"Multifunctional additive properties of acrylate based ZnO Nano composite for lubricating oil","authors":"K. Dey, S. Paul, P. Ghosh","doi":"10.26655/AJNANOMAT.2021.2.6","DOIUrl":"https://doi.org/10.26655/AJNANOMAT.2021.2.6","url":null,"abstract":"Recently, polymer nanocomposites have attracted greater interest as lubricant additives compared to pure polymer. In this work, we synthesized ZnO nanoparticles and characterized them using scanning electron microscope(SEM) and X-ray diffraction (XRD) analysis. The synthesized nanoparticles were then incorporated into the poly dodecylacylate to prepare polymer nanocomposites (PNCs) by sonication. The PNC was characterized using different analytical techniques like FT-IR, NMR, TGA etc. The additive performance of the PNC as viscosity index improver, pour point depressant and anti-wear were evaluated using the standard ASTM methods. The results demonstrated that, the overall performance of the additive was improved byincreasing the concentration of PNC in the base stock. It was observed that PNCs have shown good viscosity modifier characteristics as one of the composite having higher nanoparticles content shown viscosity index value of 137, which is higher than neat polymer. Moreover, up to 28% decrease in wear reduction was observed by applying the PNC.","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":"23 Suppl 1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80270619","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: 1
Chemoselective oxidation of sulfides to sulfoxides using a novel Zn-DABCO functionalized Fe3O4 MNPs as highly effective nanomagnetic catalyst 利用新型锌- dabco功能化Fe3O4 MNPs作为高效纳米磁性催化剂，将硫化物化学选择性氧化为亚砜
Asian Journal of Nanoscience and Materials Pub Date : 2021-04-01 DOI: 10.26655/ajnanomat.2021.2.3
E. Ezzatzadeh
{"title":"Chemoselective oxidation of sulfides to sulfoxides using a novel Zn-DABCO functionalized Fe3O4 MNPs as highly effective nanomagnetic catalyst","authors":"E. Ezzatzadeh","doi":"10.26655/ajnanomat.2021.2.3","DOIUrl":"https://doi.org/10.26655/ajnanomat.2021.2.3","url":null,"abstract":"In the present study, Zn–DABCO@Fe3O4 with a high surface area and readily was synthesized. The morphology, particle size distribution, and phase analysis of the Zn–DABCO@Fe3O4 nanopowders were characterized using the scanning electron microscope (SEM), transmission electron microscope (TEM), vibrating sample magnetometer (VSM) and X-ray diffraction (XRD) analysis. The prepared Zn–DABCO@Fe3O4 nanoparticle was utilized as efficient catalyst for selective oxidation of sulfides to sulfoxides using 30% H2O2 as oxidant. The products were achieved with good to excellent yields at room temperature with no over-oxidation of sulfoxides and disulfides to unexpected by-products. This catalyst can be magnetically recovered by applying an external magnet and reused for eight continuous cycles in both oxidation reactions without a notable loss in its catalytic activity. Furthermore, the oxidation of various sulfides was highly chemoselective, but O,O-acetals remained intact under the described reaction conditions.","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":"365 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80338535","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: 7
Benzoic acid-functionalized α-Fe2O3 nanoparticles: synthesis, characterization, magnetic and optical properties 苯甲酸功能化α-Fe2O3纳米颗粒:合成、表征、磁性和光学性质
Asian Journal of Nanoscience and Materials Pub Date : 2021-04-01 DOI: 10.26655/AJNANOMAT.2021.2.4
A. D. Khalaji, Z. P. Sangdevini, S. M. Mousavi, M. Jarošová, P. Machek
{"title":"Benzoic acid-functionalized α-Fe2O3 nanoparticles: synthesis, characterization, magnetic and optical properties","authors":"A. D. Khalaji, Z. P. Sangdevini, S. M. Mousavi, M. Jarošová, P. Machek","doi":"10.26655/AJNANOMAT.2021.2.4","DOIUrl":"https://doi.org/10.26655/AJNANOMAT.2021.2.4","url":null,"abstract":"In this work, a new iron precursor was prepared, calcinated at 500 °C and 600 °C. The final α-Fe2O3 products (named Fe-500 and Fe-600) were characterized using the Fourier transformed infrared spectroscopy (FT-IR), UV-Vis, X-ray diffraction (XRD), transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM) analysis. The results of the FT-IR analysis demonstrated thet the sharp peaks at wavenumbers 450-650 cm-1 confirmed the stretching vibration of Fe-O. The XRD results revealed that the product prepared at 500 °C was a mixture of 59% rhombohedral and 41% cubic phases of Fe2O3 with only 11% of cubic phase Fe2O3 in the sample processed at 600 °C. TEM images showed a slight increase in particle size by increasing the calcination temperature. The magnetic properties of the products depicted a weak ferromagnetic behavior.","PeriodicalId":8523,"journal":{"name":"Asian Journal of Nanoscience and Materials","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76702474","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: 4
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