Pub Date : 2017-07-01DOI: 10.1109/NANO.2017.8117395
A. Abburi, Visweswara Rao Abburi
The objective of this study was to demonstrate a proof of concept for a technology platform which could produce engineered hydroxyapatite nanoparticles with respect to size, shape and morphology with ease and adapt it to a continuous production line. The conventional processes that are used in the production of hydroxyapatite are not only cumbersome but also expensive since the precursors are of high cost. It appears that none of the processes are capable of producing materials with different size, shape, porosity and more importantly the surface charge which is a very important characteristic for materials particularly used in medical applications. This paper shows that a single process line could eventually produce a designed nano product. The experiments were limited to producing Hydroxyapatite using inexpensive starting materials and simple unit operations. The results obtained demonstrate that nano Hydroxyapatite could be produced with variations in size, morphology and surface charge with the same experimental set up by changing several variables in the process conditions. Hydroxyapatite nanoparticles of varying crystal size, in different shapes such as needles, flakes and rhombic, surface charge from negative to positive were obtained in the same set up. The results demonstrated that by changing the conditions, it is possible to seamlessly vary the characteristic of nanomaterials. Bulk and continuous process line makes the process platform amenable for economical production.
{"title":"Surfactant-assisted synthesis and characterization of hydroxyapatite nanoparticles","authors":"A. Abburi, Visweswara Rao Abburi","doi":"10.1109/NANO.2017.8117395","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117395","url":null,"abstract":"The objective of this study was to demonstrate a proof of concept for a technology platform which could produce engineered hydroxyapatite nanoparticles with respect to size, shape and morphology with ease and adapt it to a continuous production line. The conventional processes that are used in the production of hydroxyapatite are not only cumbersome but also expensive since the precursors are of high cost. It appears that none of the processes are capable of producing materials with different size, shape, porosity and more importantly the surface charge which is a very important characteristic for materials particularly used in medical applications. This paper shows that a single process line could eventually produce a designed nano product. The experiments were limited to producing Hydroxyapatite using inexpensive starting materials and simple unit operations. The results obtained demonstrate that nano Hydroxyapatite could be produced with variations in size, morphology and surface charge with the same experimental set up by changing several variables in the process conditions. Hydroxyapatite nanoparticles of varying crystal size, in different shapes such as needles, flakes and rhombic, surface charge from negative to positive were obtained in the same set up. The results demonstrated that by changing the conditions, it is possible to seamlessly vary the characteristic of nanomaterials. Bulk and continuous process line makes the process platform amenable for economical production.","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"8 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134389778","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}
Pub Date : 2017-07-01DOI: 10.1109/NANO.2017.8117459
Hongyu An, Zhen Zhou, Yang Yi
3D integration technology offers a near term strategy for bypassing Moore's Law. Applying 3D integration to neuromorphic computing (NC) could provide a low power consumption, high-connectivity, and massively parallel processed system that can accommodate high demand computational tasks. This paper proposes a novel analog spiking nanoscale 3D NC system, wherein both neurons and synapses are stacked three-dimensionally, with monolithic inter-tier via (MIV) technology, and vertical resistive random-access memory (V-RRAM) structures. An application of the proposed system to associative memory learning is performed to demonstrate its capability in high demand computational tasks. The computational efficiency and performance improvement of the proposed architecture are demonstrated.
{"title":"Memristor-based 3D neuromorphic computing system and its application to associative memory learning","authors":"Hongyu An, Zhen Zhou, Yang Yi","doi":"10.1109/NANO.2017.8117459","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117459","url":null,"abstract":"3D integration technology offers a near term strategy for bypassing Moore's Law. Applying 3D integration to neuromorphic computing (NC) could provide a low power consumption, high-connectivity, and massively parallel processed system that can accommodate high demand computational tasks. This paper proposes a novel analog spiking nanoscale 3D NC system, wherein both neurons and synapses are stacked three-dimensionally, with monolithic inter-tier via (MIV) technology, and vertical resistive random-access memory (V-RRAM) structures. An application of the proposed system to associative memory learning is performed to demonstrate its capability in high demand computational tasks. The computational efficiency and performance improvement of the proposed architecture are demonstrated.","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134593347","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}
Pub Date : 2017-07-01DOI: 10.1109/NANO.2017.8117312
Jiayu Ye, Zhongyi Chu, Jing Cui
Gecko-inspired adhesive pads have a wide range of application with their characteristics of low preload, strong adhesion and easy detachment. However, the appearance of adhesive force needs adhesive pads with a micro-scale displacement to engage. Therefore, the microstroke table must be designed. In order to have a better adaptability for several surface structures, it is necessary to optimize the microstroke table. In this paper, the relationship between the model of the microstroke table and three kinds of surface structures has been presented. On this basis, key parameters of the model has been optimized by the Sequential Quadratic Programming (SQP) method. With the optimized parameters, the microstroke table can have a better adaptability for different kinds of surface structures and improve the efficiency of the driving energy.
{"title":"Optimization design of microstroke table for gecko adhesives actuating","authors":"Jiayu Ye, Zhongyi Chu, Jing Cui","doi":"10.1109/NANO.2017.8117312","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117312","url":null,"abstract":"Gecko-inspired adhesive pads have a wide range of application with their characteristics of low preload, strong adhesion and easy detachment. However, the appearance of adhesive force needs adhesive pads with a micro-scale displacement to engage. Therefore, the microstroke table must be designed. In order to have a better adaptability for several surface structures, it is necessary to optimize the microstroke table. In this paper, the relationship between the model of the microstroke table and three kinds of surface structures has been presented. On this basis, key parameters of the model has been optimized by the Sequential Quadratic Programming (SQP) method. With the optimized parameters, the microstroke table can have a better adaptability for different kinds of surface structures and improve the efficiency of the driving energy.","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133049537","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}
Pub Date : 2017-07-01DOI: 10.1109/NANO.2017.8117303
Teng Chen, Wei Jiang
In this study, NiFe2O4/RGO (reduced graphene oxide) were prepared successfully via a facile method based on solvothermal method. The as-synthesized NiFe2O4/RGO nanoparticles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N2 adsorption/desorption. To investigate the catalytic activity of the as-synthesized NiFe2O4/RGO nanoparticles, the thermal decomposition of ammonium perchlorate (AP) was characterized by differential thermal analyzer (DTA). The results indicated that the low-temperature exothermic peak and the high-temperature exothermic peak were merged into a sole exothermic process with the addition of NiFe2O4/RGO nanoparticles, though there was no change in the position of the phase transition temperature of AP. Moreover, the catalytic activity of NiFe2O4/RGO nanoparticles can make the high temperature exothermic peak of ammonium perchlorate decrease remarkably. The calculated HTD kinetic parameters indicate that NiFe2O4/RGO nanoparticles can decrease the activation energy of AP and increase the reaction rate constant, which further confirms the remarkable catalyst activity. Hence, NiFe2O4/RGO nanoparticles could be a promising addictive in modifying the burning behavior of Solid composite propellant.
{"title":"A facile solvothermal synthesis of NiFe2O4/RGO and its enhanced catalytic activity on thermal decomposition of ammonium perchlorate","authors":"Teng Chen, Wei Jiang","doi":"10.1109/NANO.2017.8117303","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117303","url":null,"abstract":"In this study, NiFe<inf>2</inf>O<inf>4</inf>/RGO (reduced graphene oxide) were prepared successfully via a facile method based on solvothermal method. The as-synthesized NiFe<inf>2</inf>O<inf>4</inf>/RGO nanoparticles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N2 adsorption/desorption. To investigate the catalytic activity of the as-synthesized NiFe<inf>2</inf>O<inf>4</inf>/RGO nanoparticles, the thermal decomposition of ammonium perchlorate (AP) was characterized by differential thermal analyzer (DTA). The results indicated that the low-temperature exothermic peak and the high-temperature exothermic peak were merged into a sole exothermic process with the addition of NiFe<inf>2</inf>O<inf>4</inf>/RGO nanoparticles, though there was no change in the position of the phase transition temperature of AP. Moreover, the catalytic activity of NiFe<inf>2</inf>O<inf>4</inf>/RGO nanoparticles can make the high temperature exothermic peak of ammonium perchlorate decrease remarkably. The calculated HTD kinetic parameters indicate that NiFe<inf>2</inf>O<inf>4</inf>/RGO nanoparticles can decrease the activation energy of AP and increase the reaction rate constant, which further confirms the remarkable catalyst activity. Hence, NiFe<inf>2</inf>O<inf>4</inf>/RGO nanoparticles could be a promising addictive in modifying the burning behavior of Solid composite propellant.","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125629388","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}
Pub Date : 2017-07-01DOI: 10.1109/NANO.2017.8117479
Kailey Shara, Y. Choi, Yongkun Sui, C. Zorman
This paper reports the development of electrically conductive, polymer nanofibers fabricated by electrospinning and electroless copper plating. The electrospun nanofibers were made using a precursor consisting of styrene-isoprene-styrene (SIS) block copolymer and silver trifluoroacetate. For process development and materials characterization, the fibers were electrospun as a thin membrane on glass slides. After electrospinning, each sample was exposed to an argon plasma in order to stimulate the formation of Ag metal within the fibers. Using Ag as a catalyst, copper coatings were formed on the fibers by electroless plating. It was found that high quality copper could readily form on the polymer nanofibers, rendering the originally highly resistive nanofiber membranes electrically conductive while simultaneously optically translucent. To characterize the electrical behavior of the plated fibers under mechanical load, samples were electrospun on a solid, elastic SIS thick film, plasma treated, electroless plated and subjected to elongation. One sample maintained measurable resistances for elongations of up to 167% of its unstretched value.
{"title":"Electrically conductive, polymer nanofibers fabricated by electrospinning and electroless copper plating","authors":"Kailey Shara, Y. Choi, Yongkun Sui, C. Zorman","doi":"10.1109/NANO.2017.8117479","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117479","url":null,"abstract":"This paper reports the development of electrically conductive, polymer nanofibers fabricated by electrospinning and electroless copper plating. The electrospun nanofibers were made using a precursor consisting of styrene-isoprene-styrene (SIS) block copolymer and silver trifluoroacetate. For process development and materials characterization, the fibers were electrospun as a thin membrane on glass slides. After electrospinning, each sample was exposed to an argon plasma in order to stimulate the formation of Ag metal within the fibers. Using Ag as a catalyst, copper coatings were formed on the fibers by electroless plating. It was found that high quality copper could readily form on the polymer nanofibers, rendering the originally highly resistive nanofiber membranes electrically conductive while simultaneously optically translucent. To characterize the electrical behavior of the plated fibers under mechanical load, samples were electrospun on a solid, elastic SIS thick film, plasma treated, electroless plated and subjected to elongation. One sample maintained measurable resistances for elongations of up to 167% of its unstretched value.","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121374095","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}
Pub Date : 2017-07-01DOI: 10.1109/NANO.2017.8117322
Ning Yu, Qing Shi, M. Nakajima, Huaping Wang, Zhan Yang, Qiang Huang, T. Fukuda
Field-effect transistors (FETs) have been developed from silicon based to carbon nanotubes (CNTs) based, and the fabrication space became three-dimensionl (3D). Such fabrication process requires to accurately assemble a single CNT in 3D. However, most of the current assembly technologies were used for planar structures but not for 3D structures. In this study, we aim to use nanomanipulation based on a scanning electron microscopy (SEM) to realize the 3D assembly. To achieve this goal, we first proposed a novel 3D structure named Tri-gate CNT-FET. The Tri-gate CNT-FET has three cuboid micro-electrodes and it is wrapped by CNTs with front, top and back sides. After fabrication of the electrodes, a single CNT was picked up by an Au-coated probe and placed on the front side of the three micro-electrodes by suspending over a substrate to a certain height. The CNT pick-up and placement highly depended on attractive interactions at a CNT-metal contact interface by van der Waals force. Electron beam induced deposition (EBID) technique was then used to deposit Tungsten at the interface to fix CNT. Mechanical cutting was finally carried out to release the probe from the assembled structure. The whole assembly was achieved by using only one nanomanipulator. Experiment results validated our proposed 3D assembly method for the fabrication of Tri-gate CNT-FET.
{"title":"Nanomanipulation of a single carbon nanotube for the fabrication of a field-effect transistor","authors":"Ning Yu, Qing Shi, M. Nakajima, Huaping Wang, Zhan Yang, Qiang Huang, T. Fukuda","doi":"10.1109/NANO.2017.8117322","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117322","url":null,"abstract":"Field-effect transistors (FETs) have been developed from silicon based to carbon nanotubes (CNTs) based, and the fabrication space became three-dimensionl (3D). Such fabrication process requires to accurately assemble a single CNT in 3D. However, most of the current assembly technologies were used for planar structures but not for 3D structures. In this study, we aim to use nanomanipulation based on a scanning electron microscopy (SEM) to realize the 3D assembly. To achieve this goal, we first proposed a novel 3D structure named Tri-gate CNT-FET. The Tri-gate CNT-FET has three cuboid micro-electrodes and it is wrapped by CNTs with front, top and back sides. After fabrication of the electrodes, a single CNT was picked up by an Au-coated probe and placed on the front side of the three micro-electrodes by suspending over a substrate to a certain height. The CNT pick-up and placement highly depended on attractive interactions at a CNT-metal contact interface by van der Waals force. Electron beam induced deposition (EBID) technique was then used to deposit Tungsten at the interface to fix CNT. Mechanical cutting was finally carried out to release the probe from the assembled structure. The whole assembly was achieved by using only one nanomanipulator. Experiment results validated our proposed 3D assembly method for the fabrication of Tri-gate CNT-FET.","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129101292","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}
Pub Date : 2017-07-01DOI: 10.1109/NANO.2017.8117333
Q. Gao, Guangfu Wu, K. Lai
Atomic force microscope (AFM) is a useful apparatus for measuring interaction forces between an AFM tip and samples at nanoscale. These forces can be classified into a normal force and a lateral force based on the deformation of AFM cantilever. The reliability of the measurement result is influenced by calibrating the spring constant of the AFM probe directly. However, it is still a challenge to quantitative lateral force because current calibration of lateral signal is complicated. Here, we present a simple experimental procedure to calculate a calibration factor of lateral force of a cantilever, and the method can be applied to most commercial AFM probes with rectangular cantilever.
{"title":"Calibration of lateral force of AFM measurement","authors":"Q. Gao, Guangfu Wu, K. Lai","doi":"10.1109/NANO.2017.8117333","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117333","url":null,"abstract":"Atomic force microscope (AFM) is a useful apparatus for measuring interaction forces between an AFM tip and samples at nanoscale. These forces can be classified into a normal force and a lateral force based on the deformation of AFM cantilever. The reliability of the measurement result is influenced by calibrating the spring constant of the AFM probe directly. However, it is still a challenge to quantitative lateral force because current calibration of lateral signal is complicated. Here, we present a simple experimental procedure to calculate a calibration factor of lateral force of a cantilever, and the method can be applied to most commercial AFM probes with rectangular cantilever.","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116036455","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}
Pub Date : 2017-07-01DOI: 10.1109/NANO.2017.8117474
S. Ganguly, Yunkun Xie, Avik W. Ghosh
STT-RAMs show the promise to be the universal memory device with applications in embedded devices. There are outstanding challenges that need to be addressed before a wide-scale adoption of this technology happens. The solution to these challenges lie in integration of emerging high performance spintronic materials as well as clever circuit based techniques to operate these devices at their peak performance. In this work we present a material-device-circuit co-design framework that connects the properties of materials and transport physics to circuits and systems performance. To illustrate the use of this framework we study present and next generation STT-RAM technology in terms of energy-delay-reliability performance metrics and suggest possible directions for future generation devices.
{"title":"Energy-delay-reliability of present and next generation STT-RAM technology","authors":"S. Ganguly, Yunkun Xie, Avik W. Ghosh","doi":"10.1109/NANO.2017.8117474","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117474","url":null,"abstract":"STT-RAMs show the promise to be the universal memory device with applications in embedded devices. There are outstanding challenges that need to be addressed before a wide-scale adoption of this technology happens. The solution to these challenges lie in integration of emerging high performance spintronic materials as well as clever circuit based techniques to operate these devices at their peak performance. In this work we present a material-device-circuit co-design framework that connects the properties of materials and transport physics to circuits and systems performance. To illustrate the use of this framework we study present and next generation STT-RAM technology in terms of energy-delay-reliability performance metrics and suggest possible directions for future generation devices.","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127243956","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}
Pub Date : 2017-07-01DOI: 10.1109/NANO.2017.8117412
J. Niu, P. Rasmussen
Understanding the behavior and fate of engineered nanomaterials (ENMs) released to the environment requires measurement of their physicochemical properties in relevant media. Specialized instrumentation is required to be able to detect their changes in physicochemical characteristics (such as agglomeration and dissolution) as ENMs move from the manufactured state to the exposure pathway and ultimately interact with biological systems. This study combined electrospray with dynamic mobility analysis (ES-DMA) for characterizing ENMs in dispersions. The capability of this approach to measure different size ranges of silica, gold, silver and cerium dioxide nanoparticles in dispersions was evaluated. The proposed approach was found to be capable of accurately characterizing nanoparticle size and size distributions in monomodal, polymodal and polydispersed samples. The capability of ES-DMA to resolve polymodal nanoparticle size distributions over a wide size range (from 6 to 217 nm) in a single run facilitates the detection of aggregation/agglomeration processes. Results obtained using ES-DMA were compared with those using single particle inductively-coupled plasma mass spectrometry (SP-ICP-MS). Measurements of particle size and size distribution obtained using ES-DMA compared well with reference values and with results obtained using SP-ICP-MS, showing that this technique is capable of reliable characterization of dispersed ENMs.
{"title":"Electrospray-dynamic mobility analysis for characterization of engineered nanomaterials in aqueous samples","authors":"J. Niu, P. Rasmussen","doi":"10.1109/NANO.2017.8117412","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117412","url":null,"abstract":"Understanding the behavior and fate of engineered nanomaterials (ENMs) released to the environment requires measurement of their physicochemical properties in relevant media. Specialized instrumentation is required to be able to detect their changes in physicochemical characteristics (such as agglomeration and dissolution) as ENMs move from the manufactured state to the exposure pathway and ultimately interact with biological systems. This study combined electrospray with dynamic mobility analysis (ES-DMA) for characterizing ENMs in dispersions. The capability of this approach to measure different size ranges of silica, gold, silver and cerium dioxide nanoparticles in dispersions was evaluated. The proposed approach was found to be capable of accurately characterizing nanoparticle size and size distributions in monomodal, polymodal and polydispersed samples. The capability of ES-DMA to resolve polymodal nanoparticle size distributions over a wide size range (from 6 to 217 nm) in a single run facilitates the detection of aggregation/agglomeration processes. Results obtained using ES-DMA were compared with those using single particle inductively-coupled plasma mass spectrometry (SP-ICP-MS). Measurements of particle size and size distribution obtained using ES-DMA compared well with reference values and with results obtained using SP-ICP-MS, showing that this technique is capable of reliable characterization of dispersed ENMs.","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127538626","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}
This paper presents a multifunctional nanotransfer printing (nTP) method based on a simple stick-and-peel procedure that allows fast production of multiple optical nanodevices using Scotch tape. In addition to the capabilities of forming single- and multi-layer nanopatterned films on a tape, the present technique facilitates the transfer of nanostructures onto unconventional substrates (such as cleaved fiber facets and curved fiber sides) and fabrication of more complex optical devices, including Fabry-Perot cavities. Moreover, our stick-and-peel method can be applicable to various metallic and dielectric structures, including metamaterials with the feature size below 100 nm and TiO2 nanopatterned films.
{"title":"Tape-based flexible metallic and dielectric nanophotonic devices and metamaterials","authors":"Qiugu Wang, Weikun Han, Yifei Wang, Meng Lu, Liang Dong","doi":"10.1109/NANO.2017.8117339","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117339","url":null,"abstract":"This paper presents a multifunctional nanotransfer printing (nTP) method based on a simple stick-and-peel procedure that allows fast production of multiple optical nanodevices using Scotch tape. In addition to the capabilities of forming single- and multi-layer nanopatterned films on a tape, the present technique facilitates the transfer of nanostructures onto unconventional substrates (such as cleaved fiber facets and curved fiber sides) and fabrication of more complex optical devices, including Fabry-Perot cavities. Moreover, our stick-and-peel method can be applicable to various metallic and dielectric structures, including metamaterials with the feature size below 100 nm and TiO2 nanopatterned films.","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126917905","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}
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