Nanotechnology, Science and Applications最新文献_第10页

Cold Plastic Forming of ABS Plastic Pipe ABS塑料管的冷塑性成形

IF 4.9

Nanotechnology, Science and Applications Pub Date : 2018-12-30 DOI: 10.33425/2639-9466.1012

Kentaro Tsunoda, S. Nishida, J. Ichikawa, Yuta Kashitani, Yuto Horigome, Naoki Ikeda, Hideto Harada, Nobuyuki Kamei

{"title":"Cold Plastic Forming of ABS Plastic Pipe","authors":"Kentaro Tsunoda, S. Nishida, J. Ichikawa, Yuta Kashitani, Yuto Horigome, Naoki Ikeda, Hideto Harada, Nobuyuki Kamei","doi":"10.33425/2639-9466.1012","DOIUrl":"https://doi.org/10.33425/2639-9466.1012","url":null,"abstract":"This paper describes about cold plastic forming of ABS plastic pipe. Experiment and Finite element method (FEM) analysis of pipe expansion process were operated. The application of ABS plastic pipe for air conditioner is under consideration instead of metal pipe in Japan because of weight saving of air conditioner for lowering the gravity point against earthquake. The parts of ABS plastic pipe is generally produced by injection molding. The processes need the cooling time, and it takes much time. In addition, expensive mold die is needed for each application. Thus, cold plastic forming of ABS plastic pipe was proposed. The cold plastic forming of ABS plastic pipe chosen for this study is hardly studied by other authors. Product ability of cold plastic forming is higher than the injection molding or hot working. And the punch and die shape is simple comparing to these process. In this study, pipe expansion process was operated. The ABS plastic pipe has a 10 mm diameter and 8mm inner diameter and 1 mm thickness. At first, true stress and true strain curves at any strain rate were measured by ring compression test. Obtained flow stresses was used to FEM analysis. Experimental device for pipe expansion process was made by Dip Inc.. Objective inner diameter was 10 mm. FEM analysis was operated to clarify the deformation behavior such as load-stroke diagram. It was possible to produce the expanded ABS pipe. The whitening of worked pipe and strain recovery was observed. Analysis result was indicated the good agreement comparing to experimental result in load-stroke diagram.","PeriodicalId":18881,"journal":{"name":"Nanotechnology, Science and Applications","volume":"106 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2018-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76077119","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

Smart Materials and Structures: State of the Art and Applications 智能材料与结构:技术现状与应用

IF 4.9

Nanotechnology, Science and Applications Pub Date : 2018-10-31 DOI: 10.21767/2471-9838.100034

N. Ghareeb, M. Farhat

引用次数: 6

Chemical Bonding Character of Love Herbal Medicine: A Prominent Medicine Candidate for Preventing HIV Virus 爱情草药的化学键特性:预防HIV病毒的重要候选药物

IF 4.9

Nanotechnology, Science and Applications Pub Date : 2018-06-30 DOI: 10.33425/2639-9466.1003

Arend L. Mapanawang, Hendry. I. Elim

{"title":"Chemical Bonding Character of Love Herbal Medicine: A Prominent Medicine Candidate for Preventing HIV Virus","authors":"Arend L. Mapanawang, Hendry. I. Elim","doi":"10.33425/2639-9466.1003","DOIUrl":"https://doi.org/10.33425/2639-9466.1003","url":null,"abstract":"Anti-oxidant with a very high concentration of IC50 = 6.54 ng/ml extracted from zingiberaceae fruit (Halmahera Golobe) had made this local fruit a very good candidate for improving human health. Based on this finding, a medicine named as love herbal had been fabricated with a multitasking healing in human body problems. In order to analyze the physical working system of this medicine, one investigated the optical properties of it by using chemical bonding spectroscopy method. We obtain that such medicine has optical uniqueness behaviors contributed by 4 main types of chemical bonds named as N-H (Bending) at 1562 cm-1, C=C at 1697 cm-1, C C at 2070 cm-1, and C-H at 3013 cm-1 which might be closely in conjunction with multitasking healing of human body problems, for example in improving antibody protection of human body from cancer deceases, viruses problems, and the health of heart and liver. Such finding was then tested for handling HIV virus as a result with a new discovery that such virus can be reduced dramatically from ~8 million virus to be just about ~8000 virus as the concentration of the medicine increased.","PeriodicalId":18881,"journal":{"name":"Nanotechnology, Science and Applications","volume":"144 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2018-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73309247","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: 16

Preparation, Characterization and In-Vivo Antiplasmodial Activity of Magnesium Oxide Nanoparticles on Plasmodium Berghei Infected Mice 氧化镁纳米颗粒制备、表征及对伯氏疟原虫感染小鼠体内抗疟原虫活性研究

IF 4.9

Nanotechnology, Science and Applications Pub Date : 2018-06-30 DOI: 10.33425/2639-9466.1002

Hadiza Am, Taura Dw, B. Muhammad

{"title":"Preparation, Characterization and In-Vivo Antiplasmodial Activity of Magnesium Oxide Nanoparticles on Plasmodium Berghei Infected Mice","authors":"Hadiza Am, Taura Dw, B. Muhammad","doi":"10.33425/2639-9466.1002","DOIUrl":"https://doi.org/10.33425/2639-9466.1002","url":null,"abstract":"Magnesium oxide (MgO) nanoparticles were synthesized and assayed for antiplasmodial activity in vivo. MgO nanoparticles were synthesized using sol-gel process and characterized using SEM, FTIR AND UV-VIS spectral study to confirm the formation and size of the nanoparticles. 20% of LD50 value was used to formulate a graded dose of 300, 200 and 100mg/kg. Then 30 mice were group into 5 containing six mice each and were inoculated with 0.2ml of ANKA strain of plasmodium berghei intraperitoneally and were left for the next 7 days before treatment with the graded doses based on their body weight.20/120mg/kg standard dose of Artemether lumefantrine was use as positive control while negative control were given no treatment at all. Data were analyses using mean percentage parasite clearance rate, analysis of variance (ANOVA) and Tukey honestly significant difference test. MgO nanoparticles showed a remarkable clearance rate of 98.8% just after 24hours of administration and at the end of the four day curative model all the parasites were cleared from the blood. There was statistically significant difference between groups as determine by oneway ANOVA F (3,16) =24.30,p=3.36E-06. This clearly showed that MgO nanoparticles are superior in the clearance of the ANKA strain of plasmodium berghei in infected mice.","PeriodicalId":18881,"journal":{"name":"Nanotechnology, Science and Applications","volume":"65 3","pages":""},"PeriodicalIF":4.9,"publicationDate":"2018-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72417447","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

Design of the SLS-machine for PEEK PEEK的SLS-machine设计

IF 4.9

Nanotechnology, Science and Applications Pub Date : 2018-06-30 DOI: 10.33425/2639-9466.1006

A. Nazarov, I. Skornyakov, I. Shishkovsky

引用次数: 1

Biodegradable Synthetic Polymers and their Application in Advanced Drug Delivery Systems (DDS) 生物可降解合成聚合物及其在先进给药系统中的应用

IF 4.9

Nanotechnology, Science and Applications Pub Date : 2018-06-30 DOI: 10.33425/2639-9466.1007

I. Š. Jerbić

{"title":"Biodegradable Synthetic Polymers and their Application in Advanced Drug Delivery Systems (DDS)","authors":"I. Š. Jerbić","doi":"10.33425/2639-9466.1007","DOIUrl":"https://doi.org/10.33425/2639-9466.1007","url":null,"abstract":"Natural and synthetic polymers have been used in pharmaceutical industry for many years and have important role in the development of the conventional dosage forms or for manufacturing of various drug packaging materials. In recent years, their important application resides in the development of the most sophisticated drug delivery systems where polymers are used as a drug carrier. Biodegradable polymers are particularly attractive for application in drug delivery systems since, once introduced into the human body, they do not require removal or additional manipulation. Their degradation products are normal metabolites of the body or products that can be metabolized and easily cleared from the body. Among that, synthetic polymers offer a wide variety of compositions with adjustable properties. These materials open the possibility of developing new drug delivery systems with specific properties (chemical, interfacial, mechanical and biological) for a given application, simply by changing the building blocks or the preparation technique. Such designed complex drug delivery systems where polymers are used as functional excipients have numerous advantages such as localized delivery of drug, sustained delivery of drug, stabilization of the drug, prevention of drug’s adverse side-effects, reduction of dosing frequency, minimization of drug concentration fluctuations in plasma level, improved drug utilization and patient compliance. There are range of differently designed drug delivery systems and their description and mechanism of action will be presented in this paper together with the prominent role of the polymers for each particular system. Additionally, most commonly used synthetic biodegradable polymers in drug delivery systems will be presented together with their degradation mechanism.","PeriodicalId":18881,"journal":{"name":"Nanotechnology, Science and Applications","volume":"22 6","pages":""},"PeriodicalIF":4.9,"publicationDate":"2018-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72621860","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

Effect of Alkaline Pre-Treatment on the Surface Modification of Napier Grass Fibres for the Properties of Medium Density Fibreboard (MDF) 碱性预处理对纳皮草纤维表面改性对中密度纤维板性能的影响

IF 4.9

Nanotechnology, Science and Applications Pub Date : 2018-06-30 DOI: 10.33425/2639-9466.1005

A. Bono, Roselyn Gubal

{"title":"Effect of Alkaline Pre-Treatment on the Surface Modification of Napier Grass Fibres for the Properties of Medium Density Fibreboard (MDF)","authors":"A. Bono, Roselyn Gubal","doi":"10.33425/2639-9466.1005","DOIUrl":"https://doi.org/10.33425/2639-9466.1005","url":null,"abstract":"In this study, Napier grass (Pennisetum purpureum) fibres which hold 59.19% cellulose, 21.35% hemicellulose and 7.26% lignin were comprehensively characterized to evaluate their potential as building material for medium density fibreboard (MDF). The purpose of this work was to examine the effects of sodium hydroxide solution as an alkali pre-treatment in determining the best condition for lignin removal in Napier fibres. The treatments were conducted using NaOH concentrations of 0.5, 3.0, 5.5, 8.0, 10.0 and 10.5 wt. %. The morphology of the fibres was observed using scanning electron microscope (SEM) and its chemical compositional changes was confirmed by Fourier transform infrared spectroscopy (FTIR) analysis. The study showed that the morphological observation demonstrated that the best concentration for the removal of lignin in Napier fibre was 10.5 wt. % NaOH solutions. It has been found that as the alkali concentration increased, the surface of the fibre becomes rougher which reduced the void content in the fibres. The fibres that were alkali-treated using NaOH solutions of various concentrations as well as the untreated one were subjected to single fibre testing. From the results of the single fibre testing, it is revealed that the 10.5% alkali-treated Napier grass fibres yielded the maximum and highest strength. This further signifies that alkali pre-treatment has significant impact on the production of MDF board from the non-wood fibres biomass such as Napier fibre.","PeriodicalId":18881,"journal":{"name":"Nanotechnology, Science and Applications","volume":"11 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2018-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83123591","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

Development and Structural Integration of Electrospun Carbon Nanofibers with Multi-layer Graphene Patches 多层石墨烯贴片电纺碳纳米纤维的研制与结构集成

IF 4.9

Nanotechnology, Science and Applications Pub Date : 2018-06-30 DOI: 10.33425/2639-9466.1001

Alieze A.B., B. Dreyer, J. Aprojanz, C. Tegenkamp, F. Renz, R. Sindelar

{"title":"Development and Structural Integration of Electrospun Carbon Nanofibers with Multi-layer Graphene Patches","authors":"Alieze A.B., B. Dreyer, J. Aprojanz, C. Tegenkamp, F. Renz, R. Sindelar","doi":"10.33425/2639-9466.1001","DOIUrl":"https://doi.org/10.33425/2639-9466.1001","url":null,"abstract":"Among the carbon based nanostructured materials, Carbon Nanofibers (CNF) have got unique prominence since past decade due to excellent mechanical and electrical properties combined by their cheap and easy fabrication process. CNF with graphene layered structure were developed by electrospinning of PAN (Polyacrylonitrile) and subsequent post treatments under specialized conditions. The assembly of graphene layers in the form of patches on the CNF surface was examined by Raman spectroscopy and TEM. Structural changes of CNF under different temperatures from 800°C 1500°C in reducing atmosphere have been investigated. Crystallite size, ID/IG, and FWHM for D and G characteristic bands were evaluated via Raman peak fitting and X-ray diffraction spectroscopy. Results have shown that CNF carbonized at 1500°C with prior external straining (creep stress) applied during the oxidative stabilization process showed emergence of a symmetrical sharp 2D peak in Raman spectrum with I2D/IG ratio of nearly multi-layer graphene. High temperature heat treatment along with creep stress during the stabilization process results in transforming more of the amorphous carbon into the ordered graphitic domains, leading to assembly of graphene layers on carbon nanofiber surface.","PeriodicalId":18881,"journal":{"name":"Nanotechnology, Science and Applications","volume":"66 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2018-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91233613","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 re-emergence of sodium ion batteries: testing, processing, and manufacturability. 钠离子电池的重新出现：测试、加工和可制造性。

IF 4.9

Nanotechnology, Science and Applications Pub Date : 2018-06-01 eCollection Date: 2018-01-01 DOI: 10.2147/NSA.S146365

Samuel Roberts, Emma Kendrick

引用次数: 0

Hybrid structures based on gold nanoparticles and semiconductor quantum dots for biosensor applications. 生物传感器中基于金纳米粒子和半导体量子点的混合结构。

IF 4.9

Nanotechnology, Science and Applications Pub Date : 2018-04-27 eCollection Date: 2018-01-01 DOI: 10.2147/NSA.S155045

Margarita Kurochkina, Elena Konshina, Aleksandr Oseev, Soeren Hirsch

{"title":"Hybrid structures based on gold nanoparticles and semiconductor quantum dots for biosensor applications.","authors":"Margarita Kurochkina, Elena Konshina, Aleksandr Oseev, Soeren Hirsch","doi":"10.2147/NSA.S155045","DOIUrl":"https://doi.org/10.2147/NSA.S155045","url":null,"abstract":"Background: The luminescence amplification of semiconductor quantum dots (QD) in the presence of self-assembled gold nanoparticles (Au NPs) is one of way for creating biosensors with highly efficient transduction.Aims: The objective of this study was to fabricate the hybrid structures based on semiconductor CdSe/ZnS QDs and Au NP arrays and to use them as biosensors of protein.Methods: In this paper, the hybrid structures based on CdSe/ZnS QDs and Au NP arrays were fabricated using spin coating processes. Au NP arrays deposited on a glass wafer were investigated by optical microscopy and absorption spectroscopy depending on numbers of spin coating layers and their baking temperature. Bovine serum albumin (BSA) was used as the target protein analyte in a phosphate buffer. A confocal laser scanning microscope was used to study the luminescent properties of Au NP/QD hybrid structures and to test BSA.Results: The dimensions of Au NP aggregates increased and the space between them decreased with increasing processing temperature. At the same time, a blue shift of the plasmon resonance peak in the absorption spectra of Au NP arrays was observed. The deposition of CdSe/ZnS QDs with a core diameter of 5 nm on the surface of the Au NP arrays caused an increase in absorption and a red shift of the plasmon peak in the spectra. The exciton-plasmon enhancement of the QDs' photoluminescence intensity has been obtained at room temperature for hybrid structures with Au NPs array pretreated at temperatures of 100°C and 150°C. It has been found that an increase in the weight content of BSA increases the photoluminescence intensity of such hybrid structures.Conclusion: The ability of the qualitative and quantitative determination of protein content in solution using the Au NP/QD structures as an optical biosensor has been shown experimentally.","PeriodicalId":18881,"journal":{"name":"Nanotechnology, Science and Applications","volume":"11 ","pages":"15-21"},"PeriodicalIF":4.9,"publicationDate":"2018-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2147/NSA.S155045","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36074738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10