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International Journal of Green Nanotechnology最新文献

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Synthesis of Nanosized CaZrO3 from Oxalate Precursor 草酸盐前驱体合成纳米CaZrO3
International Journal of Green Nanotechnology Pub Date : 2012-07-01 DOI: 10.1080/19430892.2012.738155
A. Lavand, S. Prajapati, Y. S. Malghe
{"title":"Synthesis of Nanosized CaZrO3 from Oxalate Precursor","authors":"A. Lavand, S. Prajapati, Y. S. Malghe","doi":"10.1080/19430892.2012.738155","DOIUrl":"https://doi.org/10.1080/19430892.2012.738155","url":null,"abstract":"ABSTRACT Nanosized calcium zirconate (CaZrO3) was synthesized from its oxalate precursor, calcium zirconyl oxalate (CZO). Thermogravimetry, differential thermal analysis, and X-ray diffraction techniques were used to characterize the precursor and optimize the processing conditions. Thermogravimetry and differential thermal analysis study shows that CZO precursor decomposes through three steps gives final product CaZrO3 above 700°C. XRD study shows that pure CaZrO3 phase is formed at 800°C. Particle size of CaZrO3 powder was measured using transmission electron microscope and distribution of particles was studied using particle size analyzer. The band gap and dielectric constant of the CaZrO3 were calculated.","PeriodicalId":13985,"journal":{"name":"International Journal of Green Nanotechnology","volume":"4 1","pages":"368-372"},"PeriodicalIF":0.0,"publicationDate":"2012-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87535114","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
Rudraksha Assisted Generation of Silver Nanoparticles for Integrated Application in the Biomedical Landscape Rudraksha辅助生成银纳米颗粒用于生物医学领域的综合应用
International Journal of Green Nanotechnology Pub Date : 2012-07-01 DOI: 10.1080/19430892.2012.706116
Poushpi Dwivedi, S. Narvi, R. P. Tewari
{"title":"Rudraksha Assisted Generation of Silver Nanoparticles for Integrated Application in the Biomedical Landscape","authors":"Poushpi Dwivedi, S. Narvi, R. P. Tewari","doi":"10.1080/19430892.2012.706116","DOIUrl":"https://doi.org/10.1080/19430892.2012.706116","url":null,"abstract":"ABSTRACT Today, there is a call for environmentally-friendly, cost-effective technique to eliminate the use of harsh, toxic reagents and minimize hazardous by-products. We thus allocated to synthesize silver nanoparticles through a green route graced with the mystical properties of five faceted beads of the plant Elaeocarpus granitrus Roxb., the Rudraksha. Positive feature of the Rudraksha bead is that it does not degrade, degenerate, or disintegrate; the same bead can be repeatedly intervened for flabbergasting generation of nanoparticles umpteen times bestowing approximately similar results. The nanoparticles were involved for development of bionanocomposite using chitosan matrix. Various techniques were used for characterization. Antimicrobial assay was completed.","PeriodicalId":13985,"journal":{"name":"International Journal of Green Nanotechnology","volume":"51 1","pages":"248-261"},"PeriodicalIF":0.0,"publicationDate":"2012-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86451808","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
Sol–Gel Processing and Characterization of Z-DL (Zirconium-Doped Lanthanum) Nanocrystallites for Substrate Coating 用于衬底涂层的Z-DL(掺杂锆镧)纳米晶的溶胶-凝胶工艺和表征
International Journal of Green Nanotechnology Pub Date : 2012-07-01 DOI: 10.1080/19430892.2012.706096
A. Bahari, R. Gholipur
{"title":"Sol–Gel Processing and Characterization of Z-DL (Zirconium-Doped Lanthanum) Nanocrystallites for Substrate Coating","authors":"A. Bahari, R. Gholipur","doi":"10.1080/19430892.2012.706096","DOIUrl":"https://doi.org/10.1080/19430892.2012.706096","url":null,"abstract":"ABSTRACT As the dimensions of the MOSFETs gate dielectric are scaled down to 1 nm, resulting in high gate leakage currents due to the quantum tunneling effect, ZrxLa1-xOy can be introduced as a candidate. In the present work, ZrxLa1-xOy nanocrystallites were prepared by sol-gel method. Sol-gel solutions of ZrxLa1-xOy with Zr atomic fractions of x = 5%, 20%, and 50% were synthesized for film deposition. The nanocrystallites were characterized using X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) techniques. The obtained results reveal that ZrxLa1-xOy gate dielectric can be introduced as a suitable gate dielectric for the future of nanotransistor generations due to its high-k dielectric, reduction of leakage current, as well as a tunneling current and an amorphous structure.","PeriodicalId":13985,"journal":{"name":"International Journal of Green Nanotechnology","volume":"42 1","pages":"225-229"},"PeriodicalIF":0.0,"publicationDate":"2012-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77038449","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
Ionic Liquid: Best Alternate to Organic Solvent to Carry Out Organic Synthesis 离子液体:有机溶剂进行有机合成的最佳替代品
International Journal of Green Nanotechnology Pub Date : 2012-07-01 DOI: 10.1080/19430892.2012.706122
K. Kumari, P. Singh, G. K. Mehrotra
{"title":"Ionic Liquid: Best Alternate to Organic Solvent to Carry Out Organic Synthesis","authors":"K. Kumari, P. Singh, G. K. Mehrotra","doi":"10.1080/19430892.2012.706122","DOIUrl":"https://doi.org/10.1080/19430892.2012.706122","url":null,"abstract":"ABSTRACT Ionic liquids, being composed entirely of ions, that is, cations and anions, were once mainly of interest to electrochemists and organic chemists. Ionic liquid has prodigious potential as an environmentally benign reaction medium for sustainable chemical synthesis. Since the end of the 1990s, rapidly increasing research efforts have shown that ionic liquid can replace conventional and potentially hazardous organic solvents in a wide range of organic synthesis due to their versatile applications. There is also increasing evidence that the application of ionic liquid can broaden the scope of catalytic behavior. Recently, however, it has become apparent that, inter-alia, their lack of measurable or low vapor pressure proved them as green solvents for the organic synthesis and that a wide range of chemical reactions can be performed in them as discussed in this review.","PeriodicalId":13985,"journal":{"name":"International Journal of Green Nanotechnology","volume":"3 1","pages":"262-276"},"PeriodicalIF":0.0,"publicationDate":"2012-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75295766","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: 10
Removal of Phosphorus from Contaminated Wastewater Using an Iron-Containing Quaternized Wood Nanocomposite 含铁季铵化木材纳米复合材料去除污染废水中的磷
International Journal of Green Nanotechnology Pub Date : 2012-07-01 DOI: 10.1080/19430892.2012.706005
L. Guzman, G. Gunawan, T. Viswanathan
{"title":"Removal of Phosphorus from Contaminated Wastewater Using an Iron-Containing Quaternized Wood Nanocomposite","authors":"L. Guzman, G. Gunawan, T. Viswanathan","doi":"10.1080/19430892.2012.706005","DOIUrl":"https://doi.org/10.1080/19430892.2012.706005","url":null,"abstract":"ABSTRACT Iron-containing quaternized wood nanocomposites have the ability to remove phos- phorus from water more quickly than non-quaternized versions. They allow for additional complexation of iron besides the o-catechol groups present in wood, where the iron complexes the phosphate ions and allowing for their removal. Quaternization also provides positive charges that attract the phosphate anion to the nanocomposite. These nanocomposites have proven that they can remove up to 100% of the phosphorus present in up to 10 mg/L phosphorus solutions with a 48-hour treatment. In 5 mg/L solutions, they have proven 99% removal capacity can be retained even after two regenerations.","PeriodicalId":13985,"journal":{"name":"International Journal of Green Nanotechnology","volume":"55 1","pages":"207-214"},"PeriodicalIF":0.0,"publicationDate":"2012-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74163308","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
Green Synthesis of Silver Nanoparticles Using Paederia foetida L. Leaf Extract and Assessment of Their Antimicrobial Activities 黄连叶提取物绿色合成纳米银及其抗菌活性评价
International Journal of Green Nanotechnology Pub Date : 2012-07-01 DOI: 10.1080/19430892.2012.706103
M. M. R. Mollick, B. Bhowmick, Dipanwita Maity, D. Mondal, Mrinal Kanti Bain, K. Bankura, J. Sarkar, D. Rana, K. Acharya, D. Chattopadhyay
{"title":"Green Synthesis of Silver Nanoparticles Using Paederia foetida L. Leaf Extract and Assessment of Their Antimicrobial Activities","authors":"M. M. R. Mollick, B. Bhowmick, Dipanwita Maity, D. Mondal, Mrinal Kanti Bain, K. Bankura, J. Sarkar, D. Rana, K. Acharya, D. Chattopadhyay","doi":"10.1080/19430892.2012.706103","DOIUrl":"https://doi.org/10.1080/19430892.2012.706103","url":null,"abstract":"ABSTRACT Silver nanoparticles were successfully synthesized from AgNO3 through a reliable, eco-friendly and simple green route using Paederia foetida L. leaf extract as a reducing cum stabilizing agent. UV-Visible Spectroscopy, dynamic light scattering, atomic force microscopy, transmission electron microscopy, and X-ray diffraction analysis were used for characterization of silver nanoparticles. The synthesized silver nanoparticles were spherical in shape with size range of 4–15 nm. The nanoparticles were face-centered cubic crystal structure. The adopted technique for silver nanoparticle synthesis is suitable for large-scale production. The as-prepared silver nanoparticles revealed excellent antibacterial activity against different gram classes of bacteria and would be a promising candidate for various pharmaceutical, biomedical, and environmental applications.","PeriodicalId":13985,"journal":{"name":"International Journal of Green Nanotechnology","volume":"5 1","pages":"230-239"},"PeriodicalIF":0.0,"publicationDate":"2012-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74486353","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: 44
Study of Thermal Conductivity of Nano-fluids Containing Gold Nanoparticles Using Moiré Deflectometry 用莫尔维尔偏转法研究含金纳米颗粒纳米流体的导热性
International Journal of Green Nanotechnology Pub Date : 2012-07-01 DOI: 10.1080/19430892.2012.739031
M. R. Huyeh, Parisa Goudarzi, S. Rasouli
{"title":"Study of Thermal Conductivity of Nano-fluids Containing Gold Nanoparticles Using Moiré Deflectometry","authors":"M. R. Huyeh, Parisa Goudarzi, S. Rasouli","doi":"10.1080/19430892.2012.739031","DOIUrl":"https://doi.org/10.1080/19430892.2012.739031","url":null,"abstract":"ABSTRACT In this report is presented a simple and accurate method based on moire deflectometry for studying of nanofluids' thermal conductivity, containing gold nanoparticles suspended in a liquid medium. A collimated laser beam passes through a cell of nanofluids and then enters a moire deflectometer. Due to a temperature gradient in the nanofluids, a prism-like medium is formed. The propagation direction of the beam is changed and the moire fringes are displaced. Finally, thermal conductivity of the nano-fluids may be determined from the moire fringe displacement. The temperature gradient is then calculated using a simple model based on the Fourier law of heat transfer. This model is expected to reasonably predict the temporal evolution of nanofluid temperature gradient.","PeriodicalId":13985,"journal":{"name":"International Journal of Green Nanotechnology","volume":"1 1","pages":"385-388"},"PeriodicalIF":0.0,"publicationDate":"2012-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74892573","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
Synthesis and Microwave Absorption Property of the Core-shell Absorber with Hollow Cenosphere as Core 以空心空心空心球为核心的核-壳吸收体的合成及其微波吸收性能
International Journal of Green Nanotechnology Pub Date : 2012-07-01 DOI: 10.1080/19430892.2012.737741
A. Shukla, R. Shukla, M. Patra, R. Jani, C. L. Balwa, S. R. Vadera, Narendra Kumar
{"title":"Synthesis and Microwave Absorption Property of the Core-shell Absorber with Hollow Cenosphere as Core","authors":"A. Shukla, R. Shukla, M. Patra, R. Jani, C. L. Balwa, S. R. Vadera, Narendra Kumar","doi":"10.1080/19430892.2012.737741","DOIUrl":"https://doi.org/10.1080/19430892.2012.737741","url":null,"abstract":"ABSTRACT Core-shell material with hollow cenospheres of low density as the core has been synthesized by depositing a layer of iron oxide shell on the surface of seed hollow cenospheres. The phase structure, morphology, particle size, chemical composition, and magnetic properties of the synthesized material have been characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDS), and vibrating sample magnetometer (VSM). Results confirm the coating of iron oxide on hollow cenospheres. Electromagnetic characterization of synthesized core-shell material was carried out in X band. Dilectric loss (tanδe) and magnetic loss (tanδm) were found in the range of ∼ 0.2 and 0.05, respectively, over 8–12 GHz. Simulation studies show the effective reflection loss (RL) is more than 10 dB over frequency range 9–10.5 GHz at a thickness of 2.2 mm. The low density iron oxide coated cenospheres have potential applications as microwave absorbing materials.","PeriodicalId":13985,"journal":{"name":"International Journal of Green Nanotechnology","volume":"39 1","pages":"354-359"},"PeriodicalIF":0.0,"publicationDate":"2012-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79231635","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 and Characterization of TZD Loaded PNIPAAm-b-PU-b-PNIPAAm Tri-Block Gold Nanopolymer TZD负载PNIPAAm-b-PU-b-PNIPAAm三嵌段金纳米聚合物的合成与表征
International Journal of Green Nanotechnology Pub Date : 2012-07-01 DOI: 10.1080/19430892.2012.706182
P. Singh, K. Kumari, G. K. Mehrotra, R. Chandra
{"title":"Synthesis and Characterization of TZD Loaded PNIPAAm-b-PU-b-PNIPAAm Tri-Block Gold Nanopolymer","authors":"P. Singh, K. Kumari, G. K. Mehrotra, R. Chandra","doi":"10.1080/19430892.2012.706182","DOIUrl":"https://doi.org/10.1080/19430892.2012.706182","url":null,"abstract":"ABSTRACT Block copolymers have been used extensively in the synthesis of different types of nanoparticles. A novel ABA type PNIPAAm-b-PU-b-PNIPAAm tri-block nanopolymer has been synthesized via atom transfer radical polymerization (ATRP) technique using a tertiary bromo-terminated as a macro-initiator and was characterized by nuclear magnetic resonance (NMR) and infrared (IR) techniques. Here, the triblock copolymer was employed as the both reducing as well as the stabilizing agent. Gold-copolymer nanoparticles were synthesized via the reaction between tri-block copolymer, PNIPAAm-b-PU-b-PNIPAAm with tetrachloroauric acid in water. The obtained Au coated copolymer was characterized by transmission electron microscopy (TEM), quasi elastic light scattering (QELS), and UV-Visible spectroscopic techniques. Thiazolidine-2,4-diones (TZDs) are a class of antidiabetic compounds that are derived from the antilipidemic and weakly antihyperglycemic clofibrate. TZDs reduce insulin resistance, increase insulin-stimula...","PeriodicalId":13985,"journal":{"name":"International Journal of Green Nanotechnology","volume":"20 1","pages":"296-301"},"PeriodicalIF":0.0,"publicationDate":"2012-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85709784","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 Plant Parts Mediated Gold Nanoparticles 植物部位介导的金纳米颗粒的合成
International Journal of Green Nanotechnology Pub Date : 2012-07-01 DOI: 10.1080/19430892.2012.706175
D. Shukla, P. S. Vankar
{"title":"Synthesis of Plant Parts Mediated Gold Nanoparticles","authors":"D. Shukla, P. S. Vankar","doi":"10.1080/19430892.2012.706175","DOIUrl":"https://doi.org/10.1080/19430892.2012.706175","url":null,"abstract":"ABSTRACT The present study relates to the production of polymorphic gold nanoparticles from biological sources such as Citrus limon, Murraya koenigii Linn leaves, and Canna indica (red), Quisqualis indica pink flowers. Reaction of biomass extract with Au+3solution under ambient conditions yielded polymorphic, stable gold nanoparticles in the range of 30–130 nm in nonagglomerated form, through a rapid process. These gold nanoparticles were characterized by UV-Visible spectroscopy, FESEM, TEM, EDAX, and AFM techniques. FT-IR authenticated the role of phytochemicals in this synthesis and reduction of Au3+to Au0.","PeriodicalId":13985,"journal":{"name":"International Journal of Green Nanotechnology","volume":"5 1","pages":"277-288"},"PeriodicalIF":0.0,"publicationDate":"2012-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82255779","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: 21
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