2015 1st Workshop on Nanotechnology in Instrumentation and Measurement (NANOFIM)最新文献_第3页

CVD Diamond Photo-Thermionic Cathodes for High Temperature Solar Cells 高温太阳能电池用CVD金刚石光热离子阴极

2015 1st Workshop on Nanotechnology in Instrumentation and Measurement (NANOFIM) Pub Date : 2015-07-01 DOI: 10.1109/NANOFIM.2015.8425279

A. Bellucci, P. Calvani, M. Girolami, D. M. Trucchi

引用次数: 0

Using Ultrasound Wave Propagation to Estimate the Dispersion of Nanostructures in Polymers with Complex Molecular Architectures 利用超声波传播估计复杂分子结构聚合物中纳米结构的分散

2015 1st Workshop on Nanotechnology in Instrumentation and Measurement (NANOFIM) Pub Date : 2015-07-01 DOI: 10.1109/NANOFIM.2015.8425327

C. Espinoza-González, C. Ávila‐Orta, G. Martínez-Colunga, F. Lionetto, F. Montagna, A. Maffezzoli

{"title":"Using Ultrasound Wave Propagation to Estimate the Dispersion of Nanostructures in Polymers with Complex Molecular Architectures","authors":"C. Espinoza-González, C. Ávila‐Orta, G. Martínez-Colunga, F. Lionetto, F. Montagna, A. Maffezzoli","doi":"10.1109/NANOFIM.2015.8425327","DOIUrl":"https://doi.org/10.1109/NANOFIM.2015.8425327","url":null,"abstract":"One of the key points for the successful development of nanocomposites is to obtain a good dispersion of the nanofillers in the polymer matrix. However, because of complex polymer-polymer and polymer-nanostructure interactions, the estimation of the dispersion is far from trivial. Dynamic rheological functions are mostly used to estimate the quality of dispersion. However, these rheological functions are sensitive to complex molecular architectures such as branching; thus, the accuracy of these rheological functions is limited for nanocomposites obtained using polymer matrices with these molecular architectures. Therefore, an estimation of the dispersion using other approaches needs to be explored. In this work, carbon nanotubes (CNTs) are firstly dispersed in a polyamide matrix by a low-frequency ultrasound-assisted extrusion process (kHz range). Then, high-frequency ultrasound wave propagation (MHz range) is used to estimate the dispersion of CNTs in polyamide matrices with different branching architectures. The quality of dispersion observed through the ultrasonic attenuation coefficient of the material matches with optical microscopy studies, in contrast with results obtained using dynamic rheological functions. Dynamic mechanical deformation induced by high-frequency ultrasound seems to be less sensitive to branching architectures, thus giving a better estimation of the quality of dispersion.","PeriodicalId":413629,"journal":{"name":"2015 1st Workshop on Nanotechnology in Instrumentation and Measurement (NANOFIM)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130360530","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

Nanofilled polyethylene terephthalate fibers for the production of hierarchical polymer based composites 纳米填充聚对苯二甲酸乙二醇酯纤维用于生产层次化聚合物基复合材料

2015 1st Workshop on Nanotechnology in Instrumentation and Measurement (NANOFIM) Pub Date : 2015-07-01 DOI: 10.1109/NANOFIM.2015.8425364

A. Greco, F. Lionetto, A. Maffezzoli

{"title":"Nanofilled polyethylene terephthalate fibers for the production of hierarchical polymer based composites","authors":"A. Greco, F. Lionetto, A. Maffezzoli","doi":"10.1109/NANOFIM.2015.8425364","DOIUrl":"https://doi.org/10.1109/NANOFIM.2015.8425364","url":null,"abstract":"The potential improvement of physical and mechanical properties in nanostructured composites can be fully exploited by proper distribution of the nanofillers in the polymer matrix, which strongly affects both their final properties and processability. A nanofilled thermosetting polymer can be used as a matrix for continuous fibers when the alignment of a high aspect ratio nanofiller is achieved: in this case a hierarchical composite is obtained. In this work a new processing technology for the production of hierarchical polymer based composites is proposed. First, the alignment of graphene nanoplatelets (GNPs) in thermoplastic fibers of amorphous polyetylene terephthalate (PETg) is achieved by a fiber spinning process. The obtained nanocomposite fibers with a very high filler content (10 wt%) are then transferred into a reactive epoxy resin. After dissolution of PETg, the nanofillers remained oriented in the thermosetting matrix. The characterization of the obtained nanocomposites has been carried by means of different experimental techniques which provided complementary results.","PeriodicalId":413629,"journal":{"name":"2015 1st Workshop on Nanotechnology in Instrumentation and Measurement (NANOFIM)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128085337","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

Structural characterization of MOVPE-grown GaAs/AlGaAs core-shell nanowires through transmission electron microscopy 通过透射电镜表征movpe生长的GaAs/AlGaAs核壳纳米线的结构

2015 1st Workshop on Nanotechnology in Instrumentation and Measurement (NANOFIM) Pub Date : 2015-07-01 DOI: 10.1109/NANOFIM.2015.8425360

M. Scuderi, P. Prete, Ilio Miccoli, N. Lovergine, C. Spinella, G. Nicotra

引用次数: 0

Cytocompatible SiC/SiOx nanowires for X-ray-excited photodynamic therapy 用于x射线激发光动力治疗的细胞相容性SiC/SiOx纳米线

2015 1st Workshop on Nanotechnology in Instrumentation and Measurement (NANOFIM) Pub Date : 2015-07-01 DOI: 10.1109/NANOFIM.2015.8425366

F. Rossi, F. Ravanetti, E. Bedogni, P. Lagonegro, F. Fabbri, T. Rimoldi, S. Pinelli, R. Alinovi, G. Benecchi, A. Cacchioli, L. Cristofolini, F. Bigi, G. Salviati

{"title":"Cytocompatible SiC/SiOx nanowires for X-ray-excited photodynamic therapy","authors":"F. Rossi, F. Ravanetti, E. Bedogni, P. Lagonegro, F. Fabbri, T. Rimoldi, S. Pinelli, R. Alinovi, G. Benecchi, A. Cacchioli, L. Cristofolini, F. Bigi, G. Salviati","doi":"10.1109/NANOFIM.2015.8425366","DOIUrl":"https://doi.org/10.1109/NANOFIM.2015.8425366","url":null,"abstract":"The development of innovative nanosystems paves the way to multidisciplinary applications at the frontier between materials science and nanomedicine. In this work we present a novel hybrid nanosystem based on cytocompatible inorganic SiC/SiOx core/shell nanowires conjugated via click-chemistry procedures with an organic photosensitizer belonging to the class of porphyrins. We show that the bare nanowires do not elicit either midterm (72 h) or long-term (10 days) cytotoxic activity leading to irreversible cellular damages or death. The hybrid nanosystem upon irradiation with 6 MV X-Rays at low doses (0.4-2 Gy) is able to generate singlet oxygen, acting therefore as an effective agent for X-Ray-excited photodynamic therapy exploitable to treat deep-seated tumors. In-vitro tests on lung adenocarcinoma cells show that the nanosystem enhances the effects of radiation therapy. As evaluated by clonogenic survival assay 12 days after irradiation at a dose of 2 Gy, the cell population is reduced with respect to control cells by about 75%.","PeriodicalId":413629,"journal":{"name":"2015 1st Workshop on Nanotechnology in Instrumentation and Measurement (NANOFIM)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126622001","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

Cell elasticity change as a biomarker for cancer detection: an AFM metrological approach 细胞弹性变化作为癌症检测的生物标志物:AFM计量方法

2015 1st Workshop on Nanotechnology in Instrumentation and Measurement (NANOFIM) Pub Date : 2015-07-01 DOI: 10.1109/NANOFIM.2015.8425323

A. Demichelis, C. Divieto, L. Mortati, S. Pavarelli, M. Sassi, G. Sassi

引用次数: 0

Vertical One-Dimensional Photonic Crystal Platforms for Label-Free (Bio)Sensing: Towards Drop-and-Measure Applications 用于无标签(生物)传感的垂直一维光子晶体平台:面向投放和测量应用

2015 1st Workshop on Nanotechnology in Instrumentation and Measurement (NANOFIM) Pub Date : 2015-07-01 DOI: 10.1109/NANOFIM.2015.8425341

G. Barillaro

引用次数: 0

Analytical characterization of silver-nanoparticle antimicrobial coatings for fiordilatte cheese fiordilatte奶酪用纳米银抗菌涂层的分析表征

2015 1st Workshop on Nanotechnology in Instrumentation and Measurement (NANOFIM) Pub Date : 2015-07-01 DOI: 10.1109/NANOFIM.2015.8425345

B. Introna, G. D. De Benedetto, A. Genga, A. Pennetta, S. Rella, T. Siciliano, C. Malitesta, A. Conte, M. D. Del Nobile

引用次数: 1

Nanostructured Al-doped ZnO coatings on PLA films for food packaging applications PLA薄膜上掺杂al - ZnO纳米涂层的食品包装应用

2015 1st Workshop on Nanotechnology in Instrumentation and Measurement (NANOFIM) Pub Date : 2015-07-01 DOI: 10.1109/NANOFIM.2015.8425326

D. Valerini, L. Tammaro, F. Di Benedetto, L. Capodieci, R. Terzi, A. Rizzo

{"title":"Nanostructured Al-doped ZnO coatings on PLA films for food packaging applications","authors":"D. Valerini, L. Tammaro, F. Di Benedetto, L. Capodieci, R. Terzi, A. Rizzo","doi":"10.1109/NANOFIM.2015.8425326","DOIUrl":"https://doi.org/10.1109/NANOFIM.2015.8425326","url":null,"abstract":"Food quality and safety are key issues when dealing with materials for food packaging applications. Polylactic acid (PLA) is widely used in food packaging, since it is considered safe for contact with food and it is flexible and optically highly transparent. Further improvements can be achieved through functionalization of the PLA surface with suitable materials. For example, coatings based on zinc oxide (ZnO) have been reported to show significant antimicrobial effects. With this aim, PLA films were extruded starting from commercial pellets and then functionalized by thin coatings made of nanostructured aluminum-doped zinc oxide (AZO). A set of AZO coatings was deposited at different sputtering power, and analyzed by scanning electron microscopy (SEM) inspection. X-ray diffraction was used to evaluate the structural properties of the AZO coatings. Optical transmission measurements revealed high transparency of the AZO-coated PLA films, with transmittance values around 80-90% in the visible range. Preliminary release tests were conducted by putting the coated films in contact with a fixed volume of a physiological saline solution and the amount of released AZO particles was evaluated by spectrophotometric measurements.","PeriodicalId":413629,"journal":{"name":"2015 1st Workshop on Nanotechnology in Instrumentation and Measurement (NANOFIM)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126479895","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

Nanodiamonds and Conducting Polymers: a new paradigm for multifunctional nanomaterials 纳米金刚石和导电聚合物:多功能纳米材料的新范例

2015 1st Workshop on Nanotechnology in Instrumentation and Measurement (NANOFIM) Pub Date : 2015-07-01 DOI: 10.1109/NANOFIM.2015.8425333

E. Tamburri, G. Reina, T. Lavecchia, S. Orlanducci, M. Terranova, D. Passeri, R. Matassa, M. Rossi

引用次数: 0