Pub Date : 2019-10-30DOI: 10.1109/NanofIM49467.2019.9233477
A. Bouhamed, Ajay, Yudi Shi, S. Naifar, J. R. Bautista-Quijano, O. Kanoun
Recently, the demand for flexible and wearable nanogenerators (NGs) have been paid great of attention to convert mechanical energy such as human motion into electrical energy. NGs are known by their simple structure and excellent piezoelectric performance after polarization. However, the polarization is very long and unsafe. In order to avoid that, the proposed solution was to dope multiwalled carbon nanotubes (MWCNTs) for better distribution of piezoelectric nanoparticles. In this work, piezoelectric nanocomposite generators were prepared using solution mixing and mold casting. A comparative study was performed to investigate the impact of MWCNTs via morphological and mechanical testing. Both nanogenerators shows good performance due to high uniformity of nanoparticle distribution within the polymer matrix showing the efficiency of the adapted fabrication process. In addition, doping multiwalled carbon nanotube (MWCNTs) within the piezoelectric nanocomposite leads to increase the output voltage by about 20% comparing to the NG without carbon nanotube (CNTs) which corresponds to 6.6 V and a power of ~37.87 μW at a load resistance of about 660 kΩ due to the enhanced distribution of the nanoparticle and better electro-mechanical coupling.
{"title":"Carbon nanotubes for high performance flexible piezoelectric polymer composite nanogenerators","authors":"A. Bouhamed, Ajay, Yudi Shi, S. Naifar, J. R. Bautista-Quijano, O. Kanoun","doi":"10.1109/NanofIM49467.2019.9233477","DOIUrl":"https://doi.org/10.1109/NanofIM49467.2019.9233477","url":null,"abstract":"Recently, the demand for flexible and wearable nanogenerators (NGs) have been paid great of attention to convert mechanical energy such as human motion into electrical energy. NGs are known by their simple structure and excellent piezoelectric performance after polarization. However, the polarization is very long and unsafe. In order to avoid that, the proposed solution was to dope multiwalled carbon nanotubes (MWCNTs) for better distribution of piezoelectric nanoparticles. In this work, piezoelectric nanocomposite generators were prepared using solution mixing and mold casting. A comparative study was performed to investigate the impact of MWCNTs via morphological and mechanical testing. Both nanogenerators shows good performance due to high uniformity of nanoparticle distribution within the polymer matrix showing the efficiency of the adapted fabrication process. In addition, doping multiwalled carbon nanotube (MWCNTs) within the piezoelectric nanocomposite leads to increase the output voltage by about 20% comparing to the NG without carbon nanotube (CNTs) which corresponds to 6.6 V and a power of ~37.87 μW at a load resistance of about 660 kΩ due to the enhanced distribution of the nanoparticle and better electro-mechanical coupling.","PeriodicalId":438378,"journal":{"name":"2019 5th International Conference on Nanotechnology for Instrumentation and Measurement (NanofIM)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130709465","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 : 2019-10-30DOI: 10.1109/NanofIM49467.2019.9233488
A. Lay-Ekuakille
Measurements in the field of micro and nanotechnologies are performed under specific conditions in order to obtain high reduction of noise and interferences. In particular for bio-nanosensing devices, measurements should take into account the impact of instrumentation within the chain allowing to characterize bio-nanodevices. The paper presents the design of nanosensor based on ISFET technology for blood characterization and proposes architectural solutions for its characterization.
{"title":"Measurement chains of a Bio-nanosensor for Blood Characterization","authors":"A. Lay-Ekuakille","doi":"10.1109/NanofIM49467.2019.9233488","DOIUrl":"https://doi.org/10.1109/NanofIM49467.2019.9233488","url":null,"abstract":"Measurements in the field of micro and nanotechnologies are performed under specific conditions in order to obtain high reduction of noise and interferences. In particular for bio-nanosensing devices, measurements should take into account the impact of instrumentation within the chain allowing to characterize bio-nanodevices. The paper presents the design of nanosensor based on ISFET technology for blood characterization and proposes architectural solutions for its characterization.","PeriodicalId":438378,"journal":{"name":"2019 5th International Conference on Nanotechnology for Instrumentation and Measurement (NanofIM)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117229875","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 : 2019-10-30DOI: 10.1109/NanofIM49467.2019.9233481
R. Munjal, F. Wendler, O. Kanoun
When the metal undergoes the process of cold work and temperature treatment, the magnetic properties of the metal changes. The determination of metal hardness is vital in these processes. Thus, the need for non-destructive metallic material hardness analyzers is increasing.In this paper, we propose to design, test and evaluate an inductive sensor system, which can analyze the hardness level of metallic materials in relation to the lift-off between metal surface and coil sensor. In this work, we have used an eddy current inductive sensor, which can differentiate between unhardened and hardened metal surface on the basis of magnetic properties like ‘permeability’. The eddy current sensor was designed and tested with an impedance analyzer in the frequency range of 4 kHz to 4 MHz over the metallic surface and the inductance results were compared to the Dodd and Deeds model simulation on MATLAB. The system evaluation shows the different permeability values for unhardened and hardened metal surfaces thus, Dodd and Deeds model together with non-contact inductive sensor system design can be used for analysing hardness level of ferromagnetic materials.
{"title":"Non-Contact Evaluation of Hardened Steel Samples using Inductive Spectroscopy","authors":"R. Munjal, F. Wendler, O. Kanoun","doi":"10.1109/NanofIM49467.2019.9233481","DOIUrl":"https://doi.org/10.1109/NanofIM49467.2019.9233481","url":null,"abstract":"When the metal undergoes the process of cold work and temperature treatment, the magnetic properties of the metal changes. The determination of metal hardness is vital in these processes. Thus, the need for non-destructive metallic material hardness analyzers is increasing.In this paper, we propose to design, test and evaluate an inductive sensor system, which can analyze the hardness level of metallic materials in relation to the lift-off between metal surface and coil sensor. In this work, we have used an eddy current inductive sensor, which can differentiate between unhardened and hardened metal surface on the basis of magnetic properties like ‘permeability’. The eddy current sensor was designed and tested with an impedance analyzer in the frequency range of 4 kHz to 4 MHz over the metallic surface and the inductance results were compared to the Dodd and Deeds model simulation on MATLAB. The system evaluation shows the different permeability values for unhardened and hardened metal surfaces thus, Dodd and Deeds model together with non-contact inductive sensor system design can be used for analysing hardness level of ferromagnetic materials.","PeriodicalId":438378,"journal":{"name":"2019 5th International Conference on Nanotechnology for Instrumentation and Measurement (NanofIM)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123457785","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 : 2019-10-30DOI: 10.1109/NanofIM49467.2019.9233486
Anurag Adiraju, A. Al-Hamry, O. Kanoun
The existence of nitrite in food, water and environment can cause toxic effects on humans and there is a need for detection. Several approaches such as optical, chromatography and electrochemical techniques have been followed to detect nitrite. Electrochemical sensors are attractive because of their ease of preparation, low cost, fast response time and on/field measurement ability. We introduce the use of polyaniline polymer and carbon screen-printed electrode for detection of nitrite. Polyaniline is a conducting polymer with high environmental stability and conducting properties. The working electrode was electrochemically polymerized in different acid solutions. Here we show the effect of the different acids on the electro polymerization of aniline towards the electrochemical sensing properties for nitrite. It was investigated that polymerization in sulphuric acid was found to achieve the best sensitivity towards nitrite detection. The effect of number of scans and scan rate of electropolymerization had a significant effect on the detection of nitrite.
{"title":"Investigation of electrochemical behaviour of polyaniline on carbon screen-printed electrodes for the detection of nitrite","authors":"Anurag Adiraju, A. Al-Hamry, O. Kanoun","doi":"10.1109/NanofIM49467.2019.9233486","DOIUrl":"https://doi.org/10.1109/NanofIM49467.2019.9233486","url":null,"abstract":"The existence of nitrite in food, water and environment can cause toxic effects on humans and there is a need for detection. Several approaches such as optical, chromatography and electrochemical techniques have been followed to detect nitrite. Electrochemical sensors are attractive because of their ease of preparation, low cost, fast response time and on/field measurement ability. We introduce the use of polyaniline polymer and carbon screen-printed electrode for detection of nitrite. Polyaniline is a conducting polymer with high environmental stability and conducting properties. The working electrode was electrochemically polymerized in different acid solutions. Here we show the effect of the different acids on the electro polymerization of aniline towards the electrochemical sensing properties for nitrite. It was investigated that polymerization in sulphuric acid was found to achieve the best sensitivity towards nitrite detection. The effect of number of scans and scan rate of electropolymerization had a significant effect on the detection of nitrite.","PeriodicalId":438378,"journal":{"name":"2019 5th International Conference on Nanotechnology for Instrumentation and Measurement (NanofIM)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116899512","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 : 2019-10-30DOI: 10.1109/NanofIM49467.2019.9233478
Ghada Bouattour, Xuandong Chen, Houda Ben Jmeaa Derbel, O. Kanoun
Wireless power transmission systems via inductive link provide nowadays an interesting option for charging devices wirelessly. The power transmission can be realized by using a couple of coils placed in proximity of each other. These coils may differ in their materials, technology, and geometries. In this paper, an investigation of different flexible coils geometries has been carried out. In fact, we investigate circular, square hexagonal and octagonal shapes with similar design parameters such as an internal radius of 2.4 cm, an external radius of 4 cm and six turns. The coils comparison is based on the measurement of the self-inductances and quality factors of the coils in different situations, such as number of used coils sides, damping and ideal states. The results show a similar behavior of the singular and dual-sided coils. The highest coil’s quality factor was in the case of a circular coil shape, whereas the highest self-inductance was in the case of a square coil shape. The coil with circular shape shows the lowest self-inductance and quality factor variation in the case of maximum coil damping.
{"title":"Investigation on Flexible Coils Geometries for Inductive Power Transmission Systems","authors":"Ghada Bouattour, Xuandong Chen, Houda Ben Jmeaa Derbel, O. Kanoun","doi":"10.1109/NanofIM49467.2019.9233478","DOIUrl":"https://doi.org/10.1109/NanofIM49467.2019.9233478","url":null,"abstract":"Wireless power transmission systems via inductive link provide nowadays an interesting option for charging devices wirelessly. The power transmission can be realized by using a couple of coils placed in proximity of each other. These coils may differ in their materials, technology, and geometries. In this paper, an investigation of different flexible coils geometries has been carried out. In fact, we investigate circular, square hexagonal and octagonal shapes with similar design parameters such as an internal radius of 2.4 cm, an external radius of 4 cm and six turns. The coils comparison is based on the measurement of the self-inductances and quality factors of the coils in different situations, such as number of used coils sides, damping and ideal states. The results show a similar behavior of the singular and dual-sided coils. The highest coil’s quality factor was in the case of a circular coil shape, whereas the highest self-inductance was in the case of a square coil shape. The coil with circular shape shows the lowest self-inductance and quality factor variation in the case of maximum coil damping.","PeriodicalId":438378,"journal":{"name":"2019 5th International Conference on Nanotechnology for Instrumentation and Measurement (NanofIM)","volume":"45 22","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120882897","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 : 2019-10-30DOI: 10.1109/NanofIM49467.2019.9233484
Rim Barioul, Sameh Fakhfakh Gharbi, Muhammad Bilal Abbasi, A. Fasih, Houda Ben-Jmeaa-Derbel, O. Kanoun
The Force Myography (FMG) is an non-invasive technique where force sensitive resistors (FSRs) are used on the surface of the skin to detect the volumetric variations in the underlying muscles and tendons complex. Recent works have proposed various FMG systems for gesture recognition with a big number of sensors or combined systems with other sensors such as electromyography to identify gestures with objects interaction or force level variation. This paper propose two FMG detection systems with minimal number of FSR sensors (four and eight) for American sign language recognition based on raw FMG with implementation of Extreme learning machine (ELM) for evaluating the accuracy of nine ALS alphabet recognition. The first feasibility test for ALS sign detection with FMG systems was tested with one subject with an ELM accuracy of 78% with four sensors and 97.90 % with eight and the minimal efficient sensor number was preliminary investigated in the second band. Other nine subjects tested the sight sensor band which resulted an ELM accuracy of 83,30% for identification of nine ALS signs from 10 subjects while the SVM resulted an accuracy of 64,9 with the same database.
{"title":"Wrist Force Myography (FMG) Exploitation for Finger Signs Distinguishing","authors":"Rim Barioul, Sameh Fakhfakh Gharbi, Muhammad Bilal Abbasi, A. Fasih, Houda Ben-Jmeaa-Derbel, O. Kanoun","doi":"10.1109/NanofIM49467.2019.9233484","DOIUrl":"https://doi.org/10.1109/NanofIM49467.2019.9233484","url":null,"abstract":"The Force Myography (FMG) is an non-invasive technique where force sensitive resistors (FSRs) are used on the surface of the skin to detect the volumetric variations in the underlying muscles and tendons complex. Recent works have proposed various FMG systems for gesture recognition with a big number of sensors or combined systems with other sensors such as electromyography to identify gestures with objects interaction or force level variation. This paper propose two FMG detection systems with minimal number of FSR sensors (four and eight) for American sign language recognition based on raw FMG with implementation of Extreme learning machine (ELM) for evaluating the accuracy of nine ALS alphabet recognition. The first feasibility test for ALS sign detection with FMG systems was tested with one subject with an ELM accuracy of 78% with four sensors and 97.90 % with eight and the minimal efficient sensor number was preliminary investigated in the second band. Other nine subjects tested the sight sensor band which resulted an ELM accuracy of 83,30% for identification of nine ALS signs from 10 subjects while the SVM resulted an accuracy of 64,9 with the same database.","PeriodicalId":438378,"journal":{"name":"2019 5th International Conference on Nanotechnology for Instrumentation and Measurement (NanofIM)","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123275134","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 : 2019-10-30DOI: 10.1109/NanofIM49467.2019.9233492
Hanen Nouri, Emna ben Ayed, D. Bouchaala, H. Derbel, O. Kanoun
Embedded bioimpedance devices are in high demand for the improvement of the healthcare systems. These devices require an accurate and stable current source with a high output impedance in the frequency range from 5 kHz to 1 MHz for a load range from 100 Ω to 10 kΩ. The output impedance should be higher than 10 MΩ at 5kHz and 1 MΩ at 1 MHz. In this paper, a comparison between the inverting single configuration and the inverting dual configuration of the Howland current source is discussed. For the evaluation of the circuit performances, two parameters are considered: resistor configurations and amplifier characteristics. The results shows that the inverting dual configuration using the operational amplifier AD8021 with a very high bandwidth has the highest output impedance values (higher than 1 MΩ at 1 MHz).
{"title":"Comparative Study of Howland Current Source Configurations for Accurate Biomedical Devices","authors":"Hanen Nouri, Emna ben Ayed, D. Bouchaala, H. Derbel, O. Kanoun","doi":"10.1109/NanofIM49467.2019.9233492","DOIUrl":"https://doi.org/10.1109/NanofIM49467.2019.9233492","url":null,"abstract":"Embedded bioimpedance devices are in high demand for the improvement of the healthcare systems. These devices require an accurate and stable current source with a high output impedance in the frequency range from 5 kHz to 1 MHz for a load range from 100 Ω to 10 kΩ. The output impedance should be higher than 10 MΩ at 5kHz and 1 MΩ at 1 MHz. In this paper, a comparison between the inverting single configuration and the inverting dual configuration of the Howland current source is discussed. For the evaluation of the circuit performances, two parameters are considered: resistor configurations and amplifier characteristics. The results shows that the inverting dual configuration using the operational amplifier AD8021 with a very high bandwidth has the highest output impedance values (higher than 1 MΩ at 1 MHz).","PeriodicalId":438378,"journal":{"name":"2019 5th International Conference on Nanotechnology for Instrumentation and Measurement (NanofIM)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125620771","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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