Pub Date : 2021-01-01DOI: 10.37904/nanocon.2021.4323
,. Anju, Raghvendra Singh Yadav, I. Kuřitka, J. Vilčáková, David Škoda, P. Urbánek, M. Machovský, M. Masař, M. Urbánek
Lightweight and flexible material with enhanced electromagnetic interference shielding effectiveness is highly in demand in the electronics and communication industry. Herein, we synthesized CoFe2O4 and ZnFe2O4 nanoparticles using the sonochemical method, and further, these nanoparticles were embedded inside thermoplastic polyurethane (TPU) along with reduced graphene oxide (rGO) by a melt-mixing approach using a microcompounder. CoFe2O4 or ZnFe2O4 nanocomposites in the TPU matrix with rGO showed outstanding electromagnetic shielding performance having a constant thickness of 0.80 mm, only. The maximum total shielding effectiveness (SET) was 48.3 dB for ZnFe2O4 nanocomposite and 50.76 dB for CoFe2O4 nanocomposite. These results indicate that the developed nanocomposite can be potentially utilized for electromagnetic shielding applications.
{"title":"Lightweight, Flexible and High-Performance Nanocomposites based on Reduced Graphene Oxide and Spinel Ferrite (ZnFe2O4 / CoFe2O4) Nanoparticles in Thermoplastic Polyurethane Matrix for Electromagnetic Interference Shielding Applications","authors":",. Anju, Raghvendra Singh Yadav, I. Kuřitka, J. Vilčáková, David Škoda, P. Urbánek, M. Machovský, M. Masař, M. Urbánek","doi":"10.37904/nanocon.2021.4323","DOIUrl":"https://doi.org/10.37904/nanocon.2021.4323","url":null,"abstract":"Lightweight and flexible material with enhanced electromagnetic interference shielding effectiveness is highly in demand in the electronics and communication industry. Herein, we synthesized CoFe2O4 and ZnFe2O4 nanoparticles using the sonochemical method, and further, these nanoparticles were embedded inside thermoplastic polyurethane (TPU) along with reduced graphene oxide (rGO) by a melt-mixing approach using a microcompounder. CoFe2O4 or ZnFe2O4 nanocomposites in the TPU matrix with rGO showed outstanding electromagnetic shielding performance having a constant thickness of 0.80 mm, only. The maximum total shielding effectiveness (SET) was 48.3 dB for ZnFe2O4 nanocomposite and 50.76 dB for CoFe2O4 nanocomposite. These results indicate that the developed nanocomposite can be potentially utilized for electromagnetic shielding applications.","PeriodicalId":168169,"journal":{"name":"NANOCON 2021 Conference Proeedings","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127733162","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 : 2021-01-01DOI: 10.37904/nanocon.2021.4369
T. Sitek, Klaudia Köbölová, Ján Poláčik, Stela Valovič
Domestic boilers are generally characterized by higher emissions of airborne dust. A commonly used secondary method of reducing emissions in the energy sector is a cyclone. However, its wider expansion in households is limited by, among other things, the low efficiency of particle capture below 1 micrometre in diameter, and it is these sizes that dominate in the flue gas of domestic heating devices. By sharply lowering the temperature of the flue gas below the dew point of the vapour, it condenses on all available surfaces. This effect could increase the diameter of the particles, which could be separated with higher efficiency. A change in the numerical distribution of the fine particles with a temperature and thus the supersaturation of the flue gas was sought. The flue gas passed through an impinger filled with water and isopropyl alcohol at three different temperature regimes. The impinger also served to capture the condensate, which was then subjected to morphology analysis using an electron microscope and determination of particle distribution in the condensate.
{"title":"Controlled nanoparticle growth by vapour condensation","authors":"T. Sitek, Klaudia Köbölová, Ján Poláčik, Stela Valovič","doi":"10.37904/nanocon.2021.4369","DOIUrl":"https://doi.org/10.37904/nanocon.2021.4369","url":null,"abstract":"Domestic boilers are generally characterized by higher emissions of airborne dust. A commonly used secondary method of reducing emissions in the energy sector is a cyclone. However, its wider expansion in households is limited by, among other things, the low efficiency of particle capture below 1 micrometre in diameter, and it is these sizes that dominate in the flue gas of domestic heating devices. By sharply lowering the temperature of the flue gas below the dew point of the vapour, it condenses on all available surfaces. This effect could increase the diameter of the particles, which could be separated with higher efficiency. A change in the numerical distribution of the fine particles with a temperature and thus the supersaturation of the flue gas was sought. The flue gas passed through an impinger filled with water and isopropyl alcohol at three different temperature regimes. The impinger also served to capture the condensate, which was then subjected to morphology analysis using an electron microscope and determination of particle distribution in the condensate.","PeriodicalId":168169,"journal":{"name":"NANOCON 2021 Conference Proeedings","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133126043","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 : 1900-01-01DOI: 10.37904/nanocon.2021.4337
Petra Závodská, M. Klučáková
This contribution is focused on superabsorbent materials based on polymerization of partially neutralized acrylic acid. Several types of superabsorbents were prepared. They differed by content of inorganic (NPK fertilizer) and organic (lignohumate) nutrients for their release in soil systems. Superabsorbents were characterized from point of view of their swelling capacity in order to evaluate their ability to control water management soil. Gradual release of incorporated nutrient into water was monitored in time and complemented by measurements of pH and conductivity, UV-VIS, ICP-OES and Ion chromatography. It was found that the nutrients were released from superabsorbents for the duration of several days in the dependence on the type of prepared superabsorbent. In conclusion, simple pot experiments with corn were realized. Corn was grown in presence of each type of superabsorbent and even without it to get differences not only between samples but between samples and corn itself. It was confirmed that the application of superabsorbents can improve soil properties, water management, nutrient uptake, and growth of plants.
{"title":"SUPERABSORBENTS ENRICHED BY ANORGANIC (NPK) AND ORGANIC (LIGNOHUMATE) NUTRIENTS IN ENVIRONMENTAL SYSTEMS","authors":"Petra Závodská, M. Klučáková","doi":"10.37904/nanocon.2021.4337","DOIUrl":"https://doi.org/10.37904/nanocon.2021.4337","url":null,"abstract":"This contribution is focused on superabsorbent materials based on polymerization of partially neutralized acrylic acid. Several types of superabsorbents were prepared. They differed by content of inorganic (NPK fertilizer) and organic (lignohumate) nutrients for their release in soil systems. Superabsorbents were characterized from point of view of their swelling capacity in order to evaluate their ability to control water management soil. Gradual release of incorporated nutrient into water was monitored in time and complemented by measurements of pH and conductivity, UV-VIS, ICP-OES and Ion chromatography. It was found that the nutrients were released from superabsorbents for the duration of several days in the dependence on the type of prepared superabsorbent. In conclusion, simple pot experiments with corn were realized. Corn was grown in presence of each type of superabsorbent and even without it to get differences not only between samples but between samples and corn itself. It was confirmed that the application of superabsorbents can improve soil properties, water management, nutrient uptake, and growth of plants.","PeriodicalId":168169,"journal":{"name":"NANOCON 2021 Conference Proeedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125556305","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 : 1900-01-01DOI: 10.37904/nanocon.2021.4379
N. Lambert, V. Mortet
{"title":"Study of Dynamic Gas Response of Microwave Plasma Enhanced Chemical Vapor Deposition Systems by Optical Emission Spectroscopy","authors":"N. Lambert, V. Mortet","doi":"10.37904/nanocon.2021.4379","DOIUrl":"https://doi.org/10.37904/nanocon.2021.4379","url":null,"abstract":"","PeriodicalId":168169,"journal":{"name":"NANOCON 2021 Conference Proeedings","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129599097","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 : 1900-01-01DOI: 10.37904/nanocon.2021.4310
R. Mušálek, T. Tesar, J. Medricky, J. Cizek, F. Lukáč
Plasma spraying of liquid feedstocks allows deposition of materials with novel microstructures. Due to the combination of a liquid carrier and ultrafine powders (in case of suspensions) or in-situ formation of the final material in the plasma jet (in case of solutions), preparation of ultrafine composites is possible, typically in a form of coatings on the substrates. Moreover, both suspension and solution spraying routes can be easily combined, either together or even with conventional plasma spraying of coarse dry powders, thus merging benefits of “nanometric” and “micrometric” constituents in the final composite microstructure. As a consequence, liquid feedstock plasma spraying represents an industrially-relevant deposition process with wide variability, providing coatings with properties tailored for various applications ranging from compact wearresistant layers, porous thermal barrier coatings, bio-compatible medical coatings, catalyst carriers, fuel-cells, etc. The paper introduces several examples of such ultrafine coatings recently deposited at IPP CAS using hybrid water-stabilized plasma torch.
{"title":"Composite coatings containing nanometric constituents prepared by plasma spraying with liquid feedstocks","authors":"R. Mušálek, T. Tesar, J. Medricky, J. Cizek, F. Lukáč","doi":"10.37904/nanocon.2021.4310","DOIUrl":"https://doi.org/10.37904/nanocon.2021.4310","url":null,"abstract":"Plasma spraying of liquid feedstocks allows deposition of materials with novel microstructures. Due to the combination of a liquid carrier and ultrafine powders (in case of suspensions) or in-situ formation of the final material in the plasma jet (in case of solutions), preparation of ultrafine composites is possible, typically in a form of coatings on the substrates. Moreover, both suspension and solution spraying routes can be easily combined, either together or even with conventional plasma spraying of coarse dry powders, thus merging benefits of “nanometric” and “micrometric” constituents in the final composite microstructure. As a consequence, liquid feedstock plasma spraying represents an industrially-relevant deposition process with wide variability, providing coatings with properties tailored for various applications ranging from compact wearresistant layers, porous thermal barrier coatings, bio-compatible medical coatings, catalyst carriers, fuel-cells, etc. The paper introduces several examples of such ultrafine coatings recently deposited at IPP CAS using hybrid water-stabilized plasma torch.","PeriodicalId":168169,"journal":{"name":"NANOCON 2021 Conference Proeedings","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116325203","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 : 1900-01-01DOI: 10.37904/nanocon.2021.4351
Radek Jirkovec, P. Holec, T. Kalous, J. Chvojka
The study is focused on the wetting of nanofibrous layers of polycaprolactone. In the study, we proceeded to compare layers from direct current spinning and alternating current spinning. During the study, it was found that direct current spinning produces hydrophilic layers, and alternating current spinning produces hydrophobic layers. The study also found that the contact angle is affected by the solvent system. Due to the widespread use of polycaprolactone in tissue engineering, wetting of the fibrous layers with a gelatin hydrogel was also performed in the experiment. During the study, the Kwok-Neumann and Li-Neumann models were used to calculate the surface energy of the fibrous layers, and these models were also used to calculate the theoretical contact angles that the gelatin hydrogel will make on the fibrous layers. The study showed that the used models could predict how the fibre layers will be wetted with the prepared hydrogel.
{"title":"The theoretical and experimental wetting of polycaprolactone nanofibre layers by gelatin hydrogel","authors":"Radek Jirkovec, P. Holec, T. Kalous, J. Chvojka","doi":"10.37904/nanocon.2021.4351","DOIUrl":"https://doi.org/10.37904/nanocon.2021.4351","url":null,"abstract":"The study is focused on the wetting of nanofibrous layers of polycaprolactone. In the study, we proceeded to compare layers from direct current spinning and alternating current spinning. During the study, it was found that direct current spinning produces hydrophilic layers, and alternating current spinning produces hydrophobic layers. The study also found that the contact angle is affected by the solvent system. Due to the widespread use of polycaprolactone in tissue engineering, wetting of the fibrous layers with a gelatin hydrogel was also performed in the experiment. During the study, the Kwok-Neumann and Li-Neumann models were used to calculate the surface energy of the fibrous layers, and these models were also used to calculate the theoretical contact angles that the gelatin hydrogel will make on the fibrous layers. The study showed that the used models could predict how the fibre layers will be wetted with the prepared hydrogel.","PeriodicalId":168169,"journal":{"name":"NANOCON 2021 Conference Proeedings","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127895431","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 : 1900-01-01DOI: 10.37904/nanocon.2021.4361
Hasan Ufuk Celebioglu, Rizvan İmamoğlu, R. Taş
{"title":"Biogenic synthesis of silver nanoparticles using Trachystemon orientalis L. and their antibacterial activities","authors":"Hasan Ufuk Celebioglu, Rizvan İmamoğlu, R. Taş","doi":"10.37904/nanocon.2021.4361","DOIUrl":"https://doi.org/10.37904/nanocon.2021.4361","url":null,"abstract":"","PeriodicalId":168169,"journal":{"name":"NANOCON 2021 Conference Proeedings","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126407475","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 : 1900-01-01DOI: 10.37904/nanocon.2021.4311
O. Galmiz, M. Fleischer, D. Pavliňák, J. Kelar, Ali Jamaati Kenari, J. Svobodová, M. Černák, D. Kováčik
Nanofiber membranes are made of synthetic polymers mainly by electrospinning technology. The key point for creating a functional nanofiber membrane for water and air filters is to meet basic key properties such as filtration efficiency, mechanical resistance, and resistance to fouling and chemicals. Design and manufacturing of the advanced nanofiber-based filters urgently require new environment-friendly and cost-effective surface treatments without the use of organic solvents and caustic solutions. To address this need, as an alternative, the atmospheric-pressure plasma treatment offers to be used for surface activation of polymer textile materials serving as a substrate for electrospun nanofiber. Nanofiber carriers represented by polypropylene non-woven were pre-treated by dielectric barrier discharge in continuous mode to improve the adhesion between the produced nanofibers and substrate. The increased adhesive forces to carrier substrate were confirmed by two peeling tests. The fact that the robust and effective atmospheric-pressure diffuse coplanar surface barrier discharge technology, primarily developed and optimized for the plasma treatment of textile and fibrous material, can be easily implemented in the industrial production lines predetermines this technology for in-line a large throughput manufacturing of advanced nanofiber-based filters.
{"title":"DIFFUSE COPLANAR SURFACE BARRIER DISCHARGE PLASMA TREATMENT AS A PART OF TECHNOLOGY FOR MANUFACTURING OF NANOFIBER-BASED FILTERS","authors":"O. Galmiz, M. Fleischer, D. Pavliňák, J. Kelar, Ali Jamaati Kenari, J. Svobodová, M. Černák, D. Kováčik","doi":"10.37904/nanocon.2021.4311","DOIUrl":"https://doi.org/10.37904/nanocon.2021.4311","url":null,"abstract":"Nanofiber membranes are made of synthetic polymers mainly by electrospinning technology. The key point for creating a functional nanofiber membrane for water and air filters is to meet basic key properties such as filtration efficiency, mechanical resistance, and resistance to fouling and chemicals. Design and manufacturing of the advanced nanofiber-based filters urgently require new environment-friendly and cost-effective surface treatments without the use of organic solvents and caustic solutions. To address this need, as an alternative, the atmospheric-pressure plasma treatment offers to be used for surface activation of polymer textile materials serving as a substrate for electrospun nanofiber. Nanofiber carriers represented by polypropylene non-woven were pre-treated by dielectric barrier discharge in continuous mode to improve the adhesion between the produced nanofibers and substrate. The increased adhesive forces to carrier substrate were confirmed by two peeling tests. The fact that the robust and effective atmospheric-pressure diffuse coplanar surface barrier discharge technology, primarily developed and optimized for the plasma treatment of textile and fibrous material, can be easily implemented in the industrial production lines predetermines this technology for in-line a large throughput manufacturing of advanced nanofiber-based filters.","PeriodicalId":168169,"journal":{"name":"NANOCON 2021 Conference Proeedings","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133953269","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 : 1900-01-01DOI: 10.37904/nanocon.2021.4315
Klaudia Köbölová, V. Adamec, Michal Urbanek, T. Zeman, J. Drbohlavová
With the development of new technologies, the requirements for safety and health at workplaces are also increasing. One of these sectors are also industrial plants which process or use fine and ultrafine particles (<2.5 μm) during their activities or where these particles are created unintentionally as a by-product of the production processes. In the case of risk assessment of these particles, it is not only a matter of health risks associated with direct exposure to these particles but can have negative effects on mental health of employees. This could lead to stress, increase mental discomfort, reduce attention, performance, and motivation to work. The aim of the methodology is to evaluate the health and safety management system, increase its level and efficiency in operations loaded with fine and ultrafine particles. The methodology includes both the assessment of risks associated with the exposure of workers and the rate of perception of risks by employees in the field of information about the risks associated with fine and ultrafine particles. It also includes perception of the adequacy of existing safety measures to reduce worker exposure to these particles. The proposal of basic measures to reduce exposure of workers is also an integral part of methodology. The proposed methodology is in line with OECD guidelines focused on nanosafety.
{"title":"Methodology for decreasing the level of risk in workplaces with the occurrence of fine and ultrafine particles.","authors":"Klaudia Köbölová, V. Adamec, Michal Urbanek, T. Zeman, J. Drbohlavová","doi":"10.37904/nanocon.2021.4315","DOIUrl":"https://doi.org/10.37904/nanocon.2021.4315","url":null,"abstract":"With the development of new technologies, the requirements for safety and health at workplaces are also increasing. One of these sectors are also industrial plants which process or use fine and ultrafine particles (<2.5 μm) during their activities or where these particles are created unintentionally as a by-product of the production processes. In the case of risk assessment of these particles, it is not only a matter of health risks associated with direct exposure to these particles but can have negative effects on mental health of employees. This could lead to stress, increase mental discomfort, reduce attention, performance, and motivation to work. The aim of the methodology is to evaluate the health and safety management system, increase its level and efficiency in operations loaded with fine and ultrafine particles. The methodology includes both the assessment of risks associated with the exposure of workers and the rate of perception of risks by employees in the field of information about the risks associated with fine and ultrafine particles. It also includes perception of the adequacy of existing safety measures to reduce worker exposure to these particles. The proposal of basic measures to reduce exposure of workers is also an integral part of methodology. The proposed methodology is in line with OECD guidelines focused on nanosafety.","PeriodicalId":168169,"journal":{"name":"NANOCON 2021 Conference Proeedings","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132733340","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 : 1900-01-01DOI: 10.37904/nanocon.2021.4376
M. Kalina, Petr Hrubý, J. Smilek, L. Kalina, V. Bílek
{"title":"Light scattering techniques as a key in providing insights into the interactions and stability of alkali-activated materials based on blast furnace slag","authors":"M. Kalina, Petr Hrubý, J. Smilek, L. Kalina, V. Bílek","doi":"10.37904/nanocon.2021.4376","DOIUrl":"https://doi.org/10.37904/nanocon.2021.4376","url":null,"abstract":"","PeriodicalId":168169,"journal":{"name":"NANOCON 2021 Conference Proeedings","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124433716","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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