Pub Date : 2021-09-05DOI: 10.1109/NAP51885.2021.9568520
O. Bordunova, Y. Samokhina, R. Dolbanosova, Lyudmila S. Patreva, N. Cherniy, Oleksandr O. Chekh, V. Loboda, S. Danilchenko, V. Chivanov
Using the physico-geometric approach in the thermal programmed desorption mass spectrometry (TPD-MS method), the possibility of indirect estimation of the three-dimensional structure of a multilayer heterogeneous composite of “calcium carbonate (calcite) – protein” type of eggshells of a guinea fowl (Numida meleagris) eggs. The method is based on the difference in rates of thermal decomposition rates of calcium carbonate depending on the peculiarities 3-D micro-, nanostructure of each layer. Increased porosity and reduction in the density of crystallite packing in local areas of the shell is accompanied by a shift of maximum peaks in the complex curves of the dependence of carbon dioxide release during process of thermal destruction (thermograms) in the direction of low temperatures. The TPD-MS makes it possible to determine of quality level and mechanical properties of the eggshells in cases where traditional methods of microscopy don’t give reliable results. Thus, this study shows the presence of reliable structural differences in different areas of the nanocomposite layers of the eggshell of guinea fowl (Numida meleagris), distinguished by increased strength. These experimental and theoretical results can be the methodological basis for the development of a new method for assessing the quality of food eggshells, which is needed to prevent losses and prevent contamination with Salmonella.
{"title":"Physico-Geometric Approach to the Processes of Thermal Decomposition of the Guinea Fowl (Numida meleagris) Eggshell’s Bionanocomposites","authors":"O. Bordunova, Y. Samokhina, R. Dolbanosova, Lyudmila S. Patreva, N. Cherniy, Oleksandr O. Chekh, V. Loboda, S. Danilchenko, V. Chivanov","doi":"10.1109/NAP51885.2021.9568520","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568520","url":null,"abstract":"Using the physico-geometric approach in the thermal programmed desorption mass spectrometry (TPD-MS method), the possibility of indirect estimation of the three-dimensional structure of a multilayer heterogeneous composite of “calcium carbonate (calcite) – protein” type of eggshells of a guinea fowl (Numida meleagris) eggs. The method is based on the difference in rates of thermal decomposition rates of calcium carbonate depending on the peculiarities 3-D micro-, nanostructure of each layer. Increased porosity and reduction in the density of crystallite packing in local areas of the shell is accompanied by a shift of maximum peaks in the complex curves of the dependence of carbon dioxide release during process of thermal destruction (thermograms) in the direction of low temperatures. The TPD-MS makes it possible to determine of quality level and mechanical properties of the eggshells in cases where traditional methods of microscopy don’t give reliable results. Thus, this study shows the presence of reliable structural differences in different areas of the nanocomposite layers of the eggshell of guinea fowl (Numida meleagris), distinguished by increased strength. These experimental and theoretical results can be the methodological basis for the development of a new method for assessing the quality of food eggshells, which is needed to prevent losses and prevent contamination with Salmonella.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"36 1 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86506616","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 : 2021-09-05DOI: 10.1109/NAP51885.2021.9568605
M. Kumeda, L. Sukhodub, L. Sukhodub, O. Potapov, Oleksandr Tsyndrenko, Olexii Kmyta
Model samples of nerve conductors with incorporated particles of inorganic origin: chitosan (CS), ZnO, Fullerene C60, dopped with Fe3+ ions multi-walled carbon nanotubes (MWCNTs+Fe) were successfully synthesized and investigated. The inclusion of inorganic particles in the alginate (Alg)-based composites reduces hydration (swelling) degree and affects the material’s resistance, leading to a decrease in the electrical conductivity. The MWCNTs+Fe-containing sample shows the highest electrical conductivity, mainly due to iron ions. ZnO and fullerene C60-containing samples have the lowest electrical conductivity due to high density and lower ability to hydrate. The mechanisms of Trp adsorption on the experimental samples were determined with Langmuir, Freundlich, Slips, and Henri isotherms equations. Sips isotherm model, which predicts the heterogeneity of the adsorption system, provides the best correlation of all experimental sample data, and the $text{r}^{2}$ values of about 99% confirm that. The adsorption on the ZnO-containing sample is well fitted to the Freundlich isotherm model (1/n<1), which means that reversible and non-ideal adsorption is favorable. The heterogeneity of the Alg-ZnO surface, as well as the exponential distribution of the active energies sites, takes place.
{"title":"Biodegradable Nanostructured Nerve Conductors: Electrical Properties And Adsorption Kinetic Models","authors":"M. Kumeda, L. Sukhodub, L. Sukhodub, O. Potapov, Oleksandr Tsyndrenko, Olexii Kmyta","doi":"10.1109/NAP51885.2021.9568605","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568605","url":null,"abstract":"Model samples of nerve conductors with incorporated particles of inorganic origin: chitosan (CS), ZnO, Fullerene C60, dopped with Fe3+ ions multi-walled carbon nanotubes (MWCNTs+Fe) were successfully synthesized and investigated. The inclusion of inorganic particles in the alginate (Alg)-based composites reduces hydration (swelling) degree and affects the material’s resistance, leading to a decrease in the electrical conductivity. The MWCNTs+Fe-containing sample shows the highest electrical conductivity, mainly due to iron ions. ZnO and fullerene C60-containing samples have the lowest electrical conductivity due to high density and lower ability to hydrate. The mechanisms of Trp adsorption on the experimental samples were determined with Langmuir, Freundlich, Slips, and Henri isotherms equations. Sips isotherm model, which predicts the heterogeneity of the adsorption system, provides the best correlation of all experimental sample data, and the $text{r}^{2}$ values of about 99% confirm that. The adsorption on the ZnO-containing sample is well fitted to the Freundlich isotherm model (1/n<1), which means that reversible and non-ideal adsorption is favorable. The heterogeneity of the Alg-ZnO surface, as well as the exponential distribution of the active energies sites, takes place.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"55 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86768867","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 : 2021-09-05DOI: 10.1109/NAP51885.2021.9568536
V. Holovatsky, M. Chubrei, V. Ivanko
The influence of the magnetic field and off-central donor impurity on the energy spectrum and wave functions of an electron in the inverted core-shell QD are calculated. On this basis, the dependence of the binding energy and the absorption coefficient of electromagnetic waves by multilayer QD with an impurity on the magnetic field induction are investigated within the approximation of the effective mass and the rectangular potential profile of the nanosystem by the matrix method using the exact electron wave functions in nanosystem without perturbations.The linear, third-order nonlinear and total optical absorption coefficients (OACs) are calculated taking into account all possible intraband quantum transitions. The combined effect of donor position, magnetic field and core size on binding energies and optical absorption coefficients is observed. The results show that these effects cause significant changes on donor binding energy and optical absorption coefficient
{"title":"Optical Absorption in Core-Shell Quantum Antidot with Donor Impurity under Applied Magnetic Field","authors":"V. Holovatsky, M. Chubrei, V. Ivanko","doi":"10.1109/NAP51885.2021.9568536","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568536","url":null,"abstract":"The influence of the magnetic field and off-central donor impurity on the energy spectrum and wave functions of an electron in the inverted core-shell QD are calculated. On this basis, the dependence of the binding energy and the absorption coefficient of electromagnetic waves by multilayer QD with an impurity on the magnetic field induction are investigated within the approximation of the effective mass and the rectangular potential profile of the nanosystem by the matrix method using the exact electron wave functions in nanosystem without perturbations.The linear, third-order nonlinear and total optical absorption coefficients (OACs) are calculated taking into account all possible intraband quantum transitions. The combined effect of donor position, magnetic field and core size on binding energies and optical absorption coefficients is observed. The results show that these effects cause significant changes on donor binding energy and optical absorption coefficient","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"10 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86611493","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 : 2021-09-05DOI: 10.1109/NAP51885.2021.9568628
A. Masyuk, V. Levytskyi, D. Katruk, U. Khromiak, B. Kulish
Peculiarities of obtaining and modifying Ba, Zn-containing polymer-silicate thermal stabilizers of polyvinyl chloride have been studied. The influence of macromolecular modifiers on the morphology and surface characteristics of thermal stabilizers is shown. The influence of fine Ba, Zn-containing polymer silicate thermal stabilizers on the processes of destruction (weight loss, thermal effect), physical-mechanical (surface hardness, elasticity) and thermophysical (Vicat softening point) properties of polyvinyl chloride materials is revealed.
{"title":"Nano-sized Polymer-Silicate Thermal Stabilizers Of Polyvinyl Chloride Materials","authors":"A. Masyuk, V. Levytskyi, D. Katruk, U. Khromiak, B. Kulish","doi":"10.1109/NAP51885.2021.9568628","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568628","url":null,"abstract":"Peculiarities of obtaining and modifying Ba, Zn-containing polymer-silicate thermal stabilizers of polyvinyl chloride have been studied. The influence of macromolecular modifiers on the morphology and surface characteristics of thermal stabilizers is shown. The influence of fine Ba, Zn-containing polymer silicate thermal stabilizers on the processes of destruction (weight loss, thermal effect), physical-mechanical (surface hardness, elasticity) and thermophysical (Vicat softening point) properties of polyvinyl chloride materials is revealed.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"32 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83450621","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 : 2021-09-05DOI: 10.1109/NAP51885.2021.9568562
M. B. Lodi, A. Fanti
Magneto-responsive biomaterials can play a key role in several biomedical applications, from therapeutic to diagnostic. Despite the several efforts for synthesizing and characterizing bioceramics doped with magnetic ions or polymers loaded with magnetic nanoparticles, there is lack of mathematical and numerical models capable of filling the gap between nanomaterial science and engineering. This work reviews and propose numerical, multiphysics models for studying the use of magnetic scaffolds for the hyperthermia treatment of bone tumors and for magnetically targeted drug delivery.
{"title":"Multiphysics Modeling of Magnetic Scaffolds for Biomedical Applications","authors":"M. B. Lodi, A. Fanti","doi":"10.1109/NAP51885.2021.9568562","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568562","url":null,"abstract":"Magneto-responsive biomaterials can play a key role in several biomedical applications, from therapeutic to diagnostic. Despite the several efforts for synthesizing and characterizing bioceramics doped with magnetic ions or polymers loaded with magnetic nanoparticles, there is lack of mathematical and numerical models capable of filling the gap between nanomaterial science and engineering. This work reviews and propose numerical, multiphysics models for studying the use of magnetic scaffolds for the hyperthermia treatment of bone tumors and for magnetically targeted drug delivery.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"10 2 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83657219","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 : 2021-09-05DOI: 10.1109/NAP51885.2021.9568542
A. Titenko, L. Demchenko, M. Babanli, Tymur Bykanov, Oleksii Titenko, S. Huseynov
The paper presents the functional properties of new Fe-Ni-Co-Ti shape memory nanocomposite, formed as a result of supersaturated solid solution aging. It was found that Fe-Ni-Co-Ti alloys in certain intervals exhibit unusual deformation and electrical effects when exposed to temperature and mechanical stresses. The reasons and factors that contribute to the achievement of large superelastic deformations and reactive stresses are analyzed. The appearance of differential thermo-emf (thermo-electromotive force) signals during the induction of martensitic transformation is studied experimentally. A correlation has been established between the temperature dependences of the differential thermo-emf and the electrical resistance of the studied alloy. Unique thermal power and the effect of deformation on electrical properties are able to compete with mechanical power drives, tools and signaling devices. Their uniqueness lies in the ability to reversibly restore the original shape and dimensions under thermal power loading conditions and, at the same time, perform useful work, signaling changes in external conditions. The formation of the required structure and functional properties is facilitated by the formation of a system of dispersed particles.
{"title":"Functional Properties of Fe-Ni-Co-Ti Nanocomposite under the Influence of Temperature and Mechanical Stress","authors":"A. Titenko, L. Demchenko, M. Babanli, Tymur Bykanov, Oleksii Titenko, S. Huseynov","doi":"10.1109/NAP51885.2021.9568542","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568542","url":null,"abstract":"The paper presents the functional properties of new Fe-Ni-Co-Ti shape memory nanocomposite, formed as a result of supersaturated solid solution aging. It was found that Fe-Ni-Co-Ti alloys in certain intervals exhibit unusual deformation and electrical effects when exposed to temperature and mechanical stresses. The reasons and factors that contribute to the achievement of large superelastic deformations and reactive stresses are analyzed. The appearance of differential thermo-emf (thermo-electromotive force) signals during the induction of martensitic transformation is studied experimentally. A correlation has been established between the temperature dependences of the differential thermo-emf and the electrical resistance of the studied alloy. Unique thermal power and the effect of deformation on electrical properties are able to compete with mechanical power drives, tools and signaling devices. Their uniqueness lies in the ability to reversibly restore the original shape and dimensions under thermal power loading conditions and, at the same time, perform useful work, signaling changes in external conditions. The formation of the required structure and functional properties is facilitated by the formation of a system of dispersed particles.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"49 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74247440","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 : 2021-09-05DOI: 10.1109/NAP51885.2021.9568607
S. Yakovin, S. Dudin, A. Zykova, V. Safonov, T. Kuznetsova, G. Melnikova, A. Petrovskaya, S. A. Chizhik G, N. Donkov
Antimicrobial properties and thrombotic resistance of modern biomaterials depend on the composition and surface properties, such as roughness, topography and wettability. Tantalum oxynitrides demonstrate a wide range of modifications in the structure and elemental composition. Results show the effect of deposition conditions on the structure and surface properties of tantalum oxynitrides and further correlation with the biological response of TaON films in vitro tests.
{"title":"Structure and Surface Properties of Magnetron Sputtered Tantalum Oxynitride Coatings for Biomedical Applications","authors":"S. Yakovin, S. Dudin, A. Zykova, V. Safonov, T. Kuznetsova, G. Melnikova, A. Petrovskaya, S. A. Chizhik G, N. Donkov","doi":"10.1109/NAP51885.2021.9568607","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568607","url":null,"abstract":"Antimicrobial properties and thrombotic resistance of modern biomaterials depend on the composition and surface properties, such as roughness, topography and wettability. Tantalum oxynitrides demonstrate a wide range of modifications in the structure and elemental composition. Results show the effect of deposition conditions on the structure and surface properties of tantalum oxynitrides and further correlation with the biological response of TaON films in vitro tests.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"46 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74674434","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 : 2021-09-05DOI: 10.1109/NAP51885.2021.9568600
V. Kotsyubynsky, B. Rachiy, I. Budzulyak, V. Boychuk, S. Budzulyak, M. Hodlevska
The aim of this paper is the systematic study of the structural properties evolution of porous carbons derived from hemp bast fiber at the different carbonization temperatures with the next chemical activation procedure under the conditions of additional nitrogen doping and thermal treatment. The comparative analysis of SAXS and Raman spectroscopy data was done. The obtained materials have a turbostratic structure and consist of the ultrasmall graphitic fragments separated by amorphous carbon. It was determined that the carbonization temperature in a range of 800-1000°C causes sharp increase in micropores relative content after carbon treatment with nitric acid. The minimal lateral size of graphitic crystallites (of about 5.5 nm along (002) basal plane) is observed for nitrogen-doped carbon obtained at carbonization temperature of 800°C that corresponds to average aggregates size. The control of activated carbons structural properties allows to increase energy and power densities of electrochemical capacitors as well as to create the preconditions for composite electrode materials obtaining with predictable properties.
{"title":"SAXS and Raman Study of the Structural Evolution in Hemp Bast Fiber Derived Porous Carbon","authors":"V. Kotsyubynsky, B. Rachiy, I. Budzulyak, V. Boychuk, S. Budzulyak, M. Hodlevska","doi":"10.1109/NAP51885.2021.9568600","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568600","url":null,"abstract":"The aim of this paper is the systematic study of the structural properties evolution of porous carbons derived from hemp bast fiber at the different carbonization temperatures with the next chemical activation procedure under the conditions of additional nitrogen doping and thermal treatment. The comparative analysis of SAXS and Raman spectroscopy data was done. The obtained materials have a turbostratic structure and consist of the ultrasmall graphitic fragments separated by amorphous carbon. It was determined that the carbonization temperature in a range of 800-1000°C causes sharp increase in micropores relative content after carbon treatment with nitric acid. The minimal lateral size of graphitic crystallites (of about 5.5 nm along (002) basal plane) is observed for nitrogen-doped carbon obtained at carbonization temperature of 800°C that corresponds to average aggregates size. The control of activated carbons structural properties allows to increase energy and power densities of electrochemical capacitors as well as to create the preconditions for composite electrode materials obtaining with predictable properties.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"26 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74725482","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 : 2021-09-05DOI: 10.1109/NAP51885.2021.9568627
K. Paliienko, L. Kalynovska, N. Pozdnyakova, N. Krisanova, A. Tarasenko, A. Pastukhov, Ulana Afonina, O. Gnatyuk, G. Dovbeshko, T. Borisova
Green synthesis is very perspective to produce nano-sized materials and composites. Here, carbon-containing nanoparticles were obtained from grass (grass nanoparticles, GP) by heating in accordance with green principles. Optical and fluorescent properties of GP were characterized and molecular groups at the GP surface were analyzed using FTIR and Raman spectroscopy. Biological effects of GP were assessed using isolated rat cortex nerve terminals (synaptosomes). Generation of spontaneous and H2 O2-evoked reactive oxygen species (ROS) detected using fluorescent dye 2’,7-dichlorofluorescein was decreased by GP in nerve terminals. GP did not change the synaptosomal membrane potential in fluorimetric experiments using potential-sensitive dye rhodamine 6G. Analyzing synaptosomal transporter-mediated uptake of excitatory and inhibitory neurotransmitters, $mathrm{L}-[^{14}mathrm{C}$] glutamate and $[^{3}mathrm{H}$] GABA, respectively, it was revealed that GP did not influence accumulation of $mathrm{L}-[^{14}mathrm{C}$] glutamate by nerve terminals, but decreased that of $[^{3}mathrm{H}$] GABA. Therefore, carbon-containing nanoparticles with antioxidant properties were synthesized from natural resources/agricultural wastes using energy savings approach with low toxicity reagents, and low damage to the environment.
{"title":"Carbon-Containing Nanoparticles From Grass: Green Synthesis, Optical, Spectrospopic, Oxidative Properties And Neurotropic Action In Brain Nerve Terminals","authors":"K. Paliienko, L. Kalynovska, N. Pozdnyakova, N. Krisanova, A. Tarasenko, A. Pastukhov, Ulana Afonina, O. Gnatyuk, G. Dovbeshko, T. Borisova","doi":"10.1109/NAP51885.2021.9568627","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568627","url":null,"abstract":"Green synthesis is very perspective to produce nano-sized materials and composites. Here, carbon-containing nanoparticles were obtained from grass (grass nanoparticles, GP) by heating in accordance with green principles. Optical and fluorescent properties of GP were characterized and molecular groups at the GP surface were analyzed using FTIR and Raman spectroscopy. Biological effects of GP were assessed using isolated rat cortex nerve terminals (synaptosomes). Generation of spontaneous and H2 O2-evoked reactive oxygen species (ROS) detected using fluorescent dye 2’,7-dichlorofluorescein was decreased by GP in nerve terminals. GP did not change the synaptosomal membrane potential in fluorimetric experiments using potential-sensitive dye rhodamine 6G. Analyzing synaptosomal transporter-mediated uptake of excitatory and inhibitory neurotransmitters, $mathrm{L}-[^{14}mathrm{C}$] glutamate and $[^{3}mathrm{H}$] GABA, respectively, it was revealed that GP did not influence accumulation of $mathrm{L}-[^{14}mathrm{C}$] glutamate by nerve terminals, but decreased that of $[^{3}mathrm{H}$] GABA. Therefore, carbon-containing nanoparticles with antioxidant properties were synthesized from natural resources/agricultural wastes using energy savings approach with low toxicity reagents, and low damage to the environment.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"949 ","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91444198","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 : 2021-09-05DOI: 10.1109/NAP51885.2021.9568541
R. Sliz, Mohammad Karzarjeddi, H. Liimatainen, T. Fabritius
The concepts of IoT, AI, I4.0, and 6G provide amazing opportunities for improving our quality of living, but also require tremendous amounts of data to operate as envisioned. To fulfil this demand for information, a large number of sensors and sensing devices is needed. Evolving sensing capabilities are associated with an increasing amount of electronic and plastic waste, which is rapidly becoming one of the major problems of our society. This research utilizes printed electronics as a method that is capable of fabricating high volumes of sensors to fulfil the requirements of emerging technologies. This study introduces printed environmentally friendly (carbon and water-based inks) conductive electrodes that could serve as vital signals’ sensors. Our results indicate that replacement of PET substrates with biodegradable nanocellulose increases the reliability of the printed electrodes, thanks to ink penetration into the nanocellulose structure. Successful utilization of biodegradable materials and printed electronics provides another example that positions printing technologies as one of the sustainable fabrication methods of the future.
{"title":"Nanocellulose as Sustainable Replacement for Plastic Substrates in Printed Electronics Applications","authors":"R. Sliz, Mohammad Karzarjeddi, H. Liimatainen, T. Fabritius","doi":"10.1109/NAP51885.2021.9568541","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568541","url":null,"abstract":"The concepts of IoT, AI, I4.0, and 6G provide amazing opportunities for improving our quality of living, but also require tremendous amounts of data to operate as envisioned. To fulfil this demand for information, a large number of sensors and sensing devices is needed. Evolving sensing capabilities are associated with an increasing amount of electronic and plastic waste, which is rapidly becoming one of the major problems of our society. This research utilizes printed electronics as a method that is capable of fabricating high volumes of sensors to fulfil the requirements of emerging technologies. This study introduces printed environmentally friendly (carbon and water-based inks) conductive electrodes that could serve as vital signals’ sensors. Our results indicate that replacement of PET substrates with biodegradable nanocellulose increases the reliability of the printed electrodes, thanks to ink penetration into the nanocellulose structure. Successful utilization of biodegradable materials and printed electronics provides another example that positions printing technologies as one of the sustainable fabrication methods of the future.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"77 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82841732","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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