Pathological observation is necessary for pathological diagnosis. In hospitals, the observation is done under the microscope to find the lesions on a pathological slide. Manual operating suffers from time consuming, unable to preserve and poor repeatability. In order to raise efficiency of pathological observation and be able to locate to the selected areas of slides for more specific investigations, an image expert system is study in this paper. The system is capable of image scanning, image mosaicking, and repeated positioning. A custom-adapted hardware platform is used for pathological slide scanning and image capturing. The scanning error caused by platform and camera is dealt with coordinate compensation. The images are mosaicked as a panorama by image registration and fusion. To realize the repeated positioning, the screen coordinate system and physical coordinate system are proposed. As the experimental results show, the system is able to acquire and store all the pathological images of a slide (20mm × 20mm) within 3 minutes and mosaic them as a panorama for observing and positioning. After repeated positioning, the positioning of those selected areas shown in the middle zone of the camera screen, covered the range of (420pix × 420pix). The success rate of repeated positioning is about 96%. The error is acceptable in pathological slide observation.
{"title":"Study of micromanipulation systemfor observing and positioning pathological slides","authors":"Junhui Zhu, Yong Wang, Fujun Sun, Changhai Ru, Ruihua Chen","doi":"10.1109/3M-NANO.2017.8286289","DOIUrl":"https://doi.org/10.1109/3M-NANO.2017.8286289","url":null,"abstract":"Pathological observation is necessary for pathological diagnosis. In hospitals, the observation is done under the microscope to find the lesions on a pathological slide. Manual operating suffers from time consuming, unable to preserve and poor repeatability. In order to raise efficiency of pathological observation and be able to locate to the selected areas of slides for more specific investigations, an image expert system is study in this paper. The system is capable of image scanning, image mosaicking, and repeated positioning. A custom-adapted hardware platform is used for pathological slide scanning and image capturing. The scanning error caused by platform and camera is dealt with coordinate compensation. The images are mosaicked as a panorama by image registration and fusion. To realize the repeated positioning, the screen coordinate system and physical coordinate system are proposed. As the experimental results show, the system is able to acquire and store all the pathological images of a slide (20mm × 20mm) within 3 minutes and mosaic them as a panorama for observing and positioning. After repeated positioning, the positioning of those selected areas shown in the middle zone of the camera screen, covered the range of (420pix × 420pix). The success rate of repeated positioning is about 96%. The error is acceptable in pathological slide observation.","PeriodicalId":6582,"journal":{"name":"2017 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"12 1","pages":"26-30"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75902245","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}
Gold nanoparticles hold unique optical and electronic properties and have been extensively applied as optical and electrochemical labels for DNA and protein detection. The nanopore based analysis of gold nanoparticles will provide us good insight for further study the conjugation of nanoparticles and DNA. In the present work, we demonstrated gold nanoparticles translocation through silicon nitride (SiN) nanopore via investigation of distribution of current blockage and dwell time of gold nanoparticles with different sizes, 10 nm and 15 nm respectively. 100 mM KCl solution with 0.075% Triton X-100 and 5 mM Tris was used to avoid the aggregation of negatively charged gold nanoparticles caused by van der Waals force. Nanopore based on SiN membrane was fabricated by current dielectric breakdown technology, and the diameter of the nanopore was calculated from an empirical equation, which is 18 nm. Experimental data was analyzed via Clampfit, version 10.6.0.13, and Origin 8 (OriginLab).
{"title":"Detection of gold nanoparticles based on solid-state nanopore","authors":"Feng He, Bohua Yin, Wanyi Xie, Leyong Yu, Shoufeng Tong, Liyuan Liang, Deqiang Wang","doi":"10.1109/3M-NANO.2017.8286306","DOIUrl":"https://doi.org/10.1109/3M-NANO.2017.8286306","url":null,"abstract":"Gold nanoparticles hold unique optical and electronic properties and have been extensively applied as optical and electrochemical labels for DNA and protein detection. The nanopore based analysis of gold nanoparticles will provide us good insight for further study the conjugation of nanoparticles and DNA. In the present work, we demonstrated gold nanoparticles translocation through silicon nitride (SiN) nanopore via investigation of distribution of current blockage and dwell time of gold nanoparticles with different sizes, 10 nm and 15 nm respectively. 100 mM KCl solution with 0.075% Triton X-100 and 5 mM Tris was used to avoid the aggregation of negatively charged gold nanoparticles caused by van der Waals force. Nanopore based on SiN membrane was fabricated by current dielectric breakdown technology, and the diameter of the nanopore was calculated from an empirical equation, which is 18 nm. Experimental data was analyzed via Clampfit, version 10.6.0.13, and Origin 8 (OriginLab).","PeriodicalId":6582,"journal":{"name":"2017 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"35 1","pages":"388-391"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75893835","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 : 2017-08-01DOI: 10.1109/3M-NANO.2017.8286324
Peng Sun, F. Xia, Lili Liu, Lipeng Jiao, Kai Chen, M. Li, Qiyong Liu, Maojin Yun
In this paper, we proposed a perfect absorber composed of a periodic double-layer graphene ribbon arrays placed on a metallic reflector separated by a dielectric layer for infrared sensing. The anti-symmetric dipole-dipole coupling mode is excited as the impedance matchingCnar-rowband absorption spectrum. Numerical simulations show that the absorption and reflection properties of the absorber are sensitive to the refractive index of the surrounding medium. Furthermore, the plasmon resonance wavelength can be tuned by varying the Fermi energy level of graphene. Such a plas-monic absorber with high sensitivity can be beneficial for chemical and biosensor applications.
{"title":"Tunable graphene-based infrared perfect absorber for sensing","authors":"Peng Sun, F. Xia, Lili Liu, Lipeng Jiao, Kai Chen, M. Li, Qiyong Liu, Maojin Yun","doi":"10.1109/3M-NANO.2017.8286324","DOIUrl":"https://doi.org/10.1109/3M-NANO.2017.8286324","url":null,"abstract":"In this paper, we proposed a perfect absorber composed of a periodic double-layer graphene ribbon arrays placed on a metallic reflector separated by a dielectric layer for infrared sensing. The anti-symmetric dipole-dipole coupling mode is excited as the impedance matchingCnar-rowband absorption spectrum. Numerical simulations show that the absorption and reflection properties of the absorber are sensitive to the refractive index of the surrounding medium. Furthermore, the plasmon resonance wavelength can be tuned by varying the Fermi energy level of graphene. Such a plas-monic absorber with high sensitivity can be beneficial for chemical and biosensor applications.","PeriodicalId":6582,"journal":{"name":"2017 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"2 1","pages":"83-86"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75012215","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 : 2017-08-01DOI: 10.1109/3M-NANO.2017.8286298
A. Ibanez, Renxi Qiu, Dayou Li
This paper aims to explore the Simultaneous Localization and Mapping (SLAM) problem in the context of implementation using the Robot Operating System (ROS) framework and the Arduino technology. The implementation of an inexpensive differential drive robot for SLAM is detailed and verified by mapping experiments conducted within domestic environments. Furthermore, a modest, yet convenient, theoretical explanation of the algorithm (Rao-Blackwellization particle filter) behind the platform is also presented. Overall, this report leads to a simple and cost effective way — including a code base and guidelines — to create robots for 2D mapping using modern technologies such as ROS.
{"title":"An implementation of SLAM using ROS and Arduino","authors":"A. Ibanez, Renxi Qiu, Dayou Li","doi":"10.1109/3M-NANO.2017.8286298","DOIUrl":"https://doi.org/10.1109/3M-NANO.2017.8286298","url":null,"abstract":"This paper aims to explore the Simultaneous Localization and Mapping (SLAM) problem in the context of implementation using the Robot Operating System (ROS) framework and the Arduino technology. The implementation of an inexpensive differential drive robot for SLAM is detailed and verified by mapping experiments conducted within domestic environments. Furthermore, a modest, yet convenient, theoretical explanation of the algorithm (Rao-Blackwellization particle filter) behind the platform is also presented. Overall, this report leads to a simple and cost effective way — including a code base and guidelines — to create robots for 2D mapping using modern technologies such as ROS.","PeriodicalId":6582,"journal":{"name":"2017 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"12 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84318078","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 : 2017-08-01DOI: 10.1109/3M-NANO.2017.8286339
Feifei Wang, Ying Wang, Tingting Huang, Fenfen Guo, Jinyun Liu, Zhengxun Song, Z. Weng, Zuobin Wang
This paper presents a method for the stretching of DNA molecules on mica surfaces by magnetic field. In the experiment, the magnetic fields with different intensities were generated using a cylindrical coil and were used to study their effects on DNA molecules. The magnetic field intensity was controlled by the electric current flowing through the coil. The imaging of DNA molecules was performed by atomic force microscope (AFM) in the same position on the mica surface after the treatment with the magnetic field. It was found that the DNA molecules were gradually straightened with the increase of magnetic field intensity, and the straightening performance was better than that of the molecular combing method in the experiment. In addition, the degree of DNA straightening was related to the speed at which DNA molecules were dropped to the mica surface, the amount of DNA charges and the direction of magnetic field.
{"title":"Stretching of DNA molecules on mica surfaces by magnetic field","authors":"Feifei Wang, Ying Wang, Tingting Huang, Fenfen Guo, Jinyun Liu, Zhengxun Song, Z. Weng, Zuobin Wang","doi":"10.1109/3M-NANO.2017.8286339","DOIUrl":"https://doi.org/10.1109/3M-NANO.2017.8286339","url":null,"abstract":"This paper presents a method for the stretching of DNA molecules on mica surfaces by magnetic field. In the experiment, the magnetic fields with different intensities were generated using a cylindrical coil and were used to study their effects on DNA molecules. The magnetic field intensity was controlled by the electric current flowing through the coil. The imaging of DNA molecules was performed by atomic force microscope (AFM) in the same position on the mica surface after the treatment with the magnetic field. It was found that the DNA molecules were gradually straightened with the increase of magnetic field intensity, and the straightening performance was better than that of the molecular combing method in the experiment. In addition, the degree of DNA straightening was related to the speed at which DNA molecules were dropped to the mica surface, the amount of DNA charges and the direction of magnetic field.","PeriodicalId":6582,"journal":{"name":"2017 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"6 1","pages":"174-177"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74403249","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 : 2017-08-01DOI: 10.1109/3M-NANO.2017.8286262
H. Inoue, Takuma Hayashi, T. Nishikawa, Y. Hayashi, M. Hada, T. Tokunaga, G. Amaratunga
This paper presents a growth and characterization of vertically aligned PdxCoi-x alloy encapsulated inside Multi-Walled Carbon Nanotube (MWCNT) arrays on Pd/Co thin layers coated on Si substrate by a dc bias-enhanced plasma chemical vapor deposition (CVD) method. The Metal Alloy Encapsulated within MWCNTs (MAE-MWCNTs) were characterized by a scanning electron microscope (SEM) and a transmission electron microscopy (TEM). The SEM images show the teardrop-shape particles encapsulated within the tube top of MWCNTs. A vibrating sample magnetometer was used to study the magnetism of a large number of MAE-MWCNTs on Si substrate at room temperature. The hysteresis loop of the ME-MWCNTs shows clear ferromagnetic behavior and the easy axis of magnetization is parallel to the MEA-MWCNT tube axis, as can be elucidated from the large coercive fields and remanence values. Moreover, TEM off-axis electron holograms were used to study the magnetism of the individual MAE-MWCNT or the two pair of MAE-MWCNTs. Based on electron holography, we have successfully obtained the saturation magnetization of 0.7 T and 1.12 T for the individual MAE-MWCNT with diameters of 41 nm and 83 nm, respectively.
{"title":"Intentionally encapsulated metal alloys within vertically aligned multi-walled carbon nanotube array via chemical vapor deposition technique","authors":"H. Inoue, Takuma Hayashi, T. Nishikawa, Y. Hayashi, M. Hada, T. Tokunaga, G. Amaratunga","doi":"10.1109/3M-NANO.2017.8286262","DOIUrl":"https://doi.org/10.1109/3M-NANO.2017.8286262","url":null,"abstract":"This paper presents a growth and characterization of vertically aligned PdxCoi-x alloy encapsulated inside Multi-Walled Carbon Nanotube (MWCNT) arrays on Pd/Co thin layers coated on Si substrate by a dc bias-enhanced plasma chemical vapor deposition (CVD) method. The Metal Alloy Encapsulated within MWCNTs (MAE-MWCNTs) were characterized by a scanning electron microscope (SEM) and a transmission electron microscopy (TEM). The SEM images show the teardrop-shape particles encapsulated within the tube top of MWCNTs. A vibrating sample magnetometer was used to study the magnetism of a large number of MAE-MWCNTs on Si substrate at room temperature. The hysteresis loop of the ME-MWCNTs shows clear ferromagnetic behavior and the easy axis of magnetization is parallel to the MEA-MWCNT tube axis, as can be elucidated from the large coercive fields and remanence values. Moreover, TEM off-axis electron holograms were used to study the magnetism of the individual MAE-MWCNT or the two pair of MAE-MWCNTs. Based on electron holography, we have successfully obtained the saturation magnetization of 0.7 T and 1.12 T for the individual MAE-MWCNT with diameters of 41 nm and 83 nm, respectively.","PeriodicalId":6582,"journal":{"name":"2017 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"26 1","pages":"357-361"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84167184","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}
Aluminum nano-wire grid structure based on stokes vector plays an important role in the polarization application technology. In this paper, we present the methods of fabricating aluminum nano-wire grid in a single direction structure and a four-orientation structure using EBL (electron beam lithography) and ICP-RIE (inductively coupled plasma-reactive ion etching). According to the request of visible light polarization, the grating's period was designed to 200nm. Based on the experimental measurement and simulation analysis, the extinction ratio of single direction nano-wire grid structure is higher than multi-orientation nano-wire grid structure in preparation of parameters under the same conditions. Two aspects were optimized to improve the performance of latter grating array structure.
{"title":"Fabrication and evaluation of aluminum nano-wire grid polarizer array in two different structure types","authors":"Shuyi Li, M. Yu, Zhengxun Song, Zuobin Wang, Yinxue Fan, Bingyu Zhao","doi":"10.1109/3M-NANO.2017.8286340","DOIUrl":"https://doi.org/10.1109/3M-NANO.2017.8286340","url":null,"abstract":"Aluminum nano-wire grid structure based on stokes vector plays an important role in the polarization application technology. In this paper, we present the methods of fabricating aluminum nano-wire grid in a single direction structure and a four-orientation structure using EBL (electron beam lithography) and ICP-RIE (inductively coupled plasma-reactive ion etching). According to the request of visible light polarization, the grating's period was designed to 200nm. Based on the experimental measurement and simulation analysis, the extinction ratio of single direction nano-wire grid structure is higher than multi-orientation nano-wire grid structure in preparation of parameters under the same conditions. Two aspects were optimized to improve the performance of latter grating array structure.","PeriodicalId":6582,"journal":{"name":"2017 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"43 1","pages":"91-94"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84056504","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 : 2017-08-01DOI: 10.1109/3M-NANO.2017.8286285
Jiyu Sun, Chao Liu, Wei Wu, Ruijuan Du, Zhijun Zhang
The hindwings are thin and fragile. However, they can display countless folding/unfolding actions during their lifetime. At the root of the Asian ladybeetle (Harmonia axyridis) hindwings, three thicker veins spread out. In this study, laser scanning confocal microscope (LSCM) was used to acquire the cross-section microstructures of the three thinker main veins. And it was found that the thickness of dorsal side (DS) and ventral side (VS) are different. The irregularly shaped vein chambers are observed from the cross-section microstructure of the three veins. Then the reduced modulus (Er) and hardness (H) of DS and VS were investigated along the veins varying from wing base to the region of principal transverse fold by nanoindentation. All the Er and H appear a tendency of linear increasing. In the folding region, the Er and H of DS were larger than that of VS. The results will be useful to the design of new deployable MAV and bioinspired systems.
{"title":"Microstructural characteristics and nanomechanical properties of hindwings of the Asian ladybeetle, harmonia axyridis","authors":"Jiyu Sun, Chao Liu, Wei Wu, Ruijuan Du, Zhijun Zhang","doi":"10.1109/3M-NANO.2017.8286285","DOIUrl":"https://doi.org/10.1109/3M-NANO.2017.8286285","url":null,"abstract":"The hindwings are thin and fragile. However, they can display countless folding/unfolding actions during their lifetime. At the root of the Asian ladybeetle (Harmonia axyridis) hindwings, three thicker veins spread out. In this study, laser scanning confocal microscope (LSCM) was used to acquire the cross-section microstructures of the three thinker main veins. And it was found that the thickness of dorsal side (DS) and ventral side (VS) are different. The irregularly shaped vein chambers are observed from the cross-section microstructure of the three veins. Then the reduced modulus (Er) and hardness (H) of DS and VS were investigated along the veins varying from wing base to the region of principal transverse fold by nanoindentation. All the Er and H appear a tendency of linear increasing. In the folding region, the Er and H of DS were larger than that of VS. The results will be useful to the design of new deployable MAV and bioinspired systems.","PeriodicalId":6582,"journal":{"name":"2017 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"53 5 1","pages":"215-218"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89675878","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 : 2017-08-01DOI: 10.1109/3M-NANO.2017.8286326
M. Li, Xiaoping Zhang, Yaqin Tian, Jie Ren, Jian Liu, Sai Priya Munagala, K. Jiang
Nickel has been widely used as a strong and highly wear resistant material in super alloys, electronics, gas turbines, and automotive industry to name a few. Further improvements on some properties, such as wear and corrosion resistances, of nickel alloys and composites have been performed. The appearance of graphene provides a new possibility to further the exploration of a new nickel composite to suit particular applications. In this paper, research on electrodeposition of graphene platelets (GPLs) and laminates is reported in an effort to study the potential of the nickel composites in electrical conductivity and hardness for applications. The presented research focusses on the electrodeposition of GPL in Ni matrix and characterisation of the composite properties. SEM analysis showed homogenous dispersion of the GPL over the Ni Surface. Characterisation was also carried out by hardness measurements and conductivity test. The results are compared with each other and with pure Ni samples. The comparison shows an increased hardness and conductivity of the surface with the increase in number of graphene layers. This work opens a new window of applications and provides a way to improvise Ni components for better.
{"title":"Surface properties of graphene platelets/nickel composite coatings","authors":"M. Li, Xiaoping Zhang, Yaqin Tian, Jie Ren, Jian Liu, Sai Priya Munagala, K. Jiang","doi":"10.1109/3M-NANO.2017.8286326","DOIUrl":"https://doi.org/10.1109/3M-NANO.2017.8286326","url":null,"abstract":"Nickel has been widely used as a strong and highly wear resistant material in super alloys, electronics, gas turbines, and automotive industry to name a few. Further improvements on some properties, such as wear and corrosion resistances, of nickel alloys and composites have been performed. The appearance of graphene provides a new possibility to further the exploration of a new nickel composite to suit particular applications. In this paper, research on electrodeposition of graphene platelets (GPLs) and laminates is reported in an effort to study the potential of the nickel composites in electrical conductivity and hardness for applications. The presented research focusses on the electrodeposition of GPL in Ni matrix and characterisation of the composite properties. SEM analysis showed homogenous dispersion of the GPL over the Ni Surface. Characterisation was also carried out by hardness measurements and conductivity test. The results are compared with each other and with pure Ni samples. The comparison shows an increased hardness and conductivity of the surface with the increase in number of graphene layers. This work opens a new window of applications and provides a way to improvise Ni components for better.","PeriodicalId":6582,"journal":{"name":"2017 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"33 1","pages":"74-78"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89188473","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 : 2017-08-01DOI: 10.1109/3M-NANO.2017.8286299
Bo Zhang, Fangxin Chen, Haiyang Li, Z. Du, W. Dong
The bevel-tip flexure needle will naturally bend during insertion in soft tissue due to the tip asymmetry. Therefore the needle enables robotically steering by rotating the needle tip resulting from the needle base rotating. However a significant orientation discrepancy between the needle tip and the needle base caused by the friction torque between the needle shaft and the tissue results in inaccurately steering. To address this problem, a tip-separated flexure needle actuated by the shear piezoelectric actuator (SPA) based on the stick-slip theory is proposed in this paper. Compared to the conventional needles, the proposed one is directly driven at the tip end, which will significantly decrease the friction torque in the inserting procedure. Essentially, the separated tip is a rotary motor based on the piezo actuated. To verify the feasibility of the proposed design for the insertion application, the motion performances of the rotary motor such as the load capacity, step characters are analyzed by the established model in this paper. Furthermore, an experimental setup with an enlarged rotary motor is designed and fabricated. Finally, it is verified that the motion performance has no connection to the motor size, i.e., the tip can, in some extent, be downsized according to the actual requirement. The proposed piezo-actuated tip can also been employed in other micro scale application as a rotary actuator.
{"title":"Development and analysis of a tip-separated flexure needle based on piezo actuation","authors":"Bo Zhang, Fangxin Chen, Haiyang Li, Z. Du, W. Dong","doi":"10.1109/3M-NANO.2017.8286299","DOIUrl":"https://doi.org/10.1109/3M-NANO.2017.8286299","url":null,"abstract":"The bevel-tip flexure needle will naturally bend during insertion in soft tissue due to the tip asymmetry. Therefore the needle enables robotically steering by rotating the needle tip resulting from the needle base rotating. However a significant orientation discrepancy between the needle tip and the needle base caused by the friction torque between the needle shaft and the tissue results in inaccurately steering. To address this problem, a tip-separated flexure needle actuated by the shear piezoelectric actuator (SPA) based on the stick-slip theory is proposed in this paper. Compared to the conventional needles, the proposed one is directly driven at the tip end, which will significantly decrease the friction torque in the inserting procedure. Essentially, the separated tip is a rotary motor based on the piezo actuated. To verify the feasibility of the proposed design for the insertion application, the motion performances of the rotary motor such as the load capacity, step characters are analyzed by the established model in this paper. Furthermore, an experimental setup with an enlarged rotary motor is designed and fabricated. Finally, it is verified that the motion performance has no connection to the motor size, i.e., the tip can, in some extent, be downsized according to the actual requirement. The proposed piezo-actuated tip can also been employed in other micro scale application as a rotary actuator.","PeriodicalId":6582,"journal":{"name":"2017 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)","volume":"13 1","pages":"108-112"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85870773","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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