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Your brain controls everything you do, and it is much more powerful than any computer you can find. This complex organ sends messages using cells called neurons, and it never stops analyzing data, even as you sleep. Scientists are trying to understand the brain to create a digital version. But is it possible for computers to do the same things our brains can? For computers to do so, we need to create something called an artificial neural network, which has digital neurons connected into a complex net that resembles the structure of the brain. To make an artificial neural network, we need to use the most universal language—mathematics.
Agnieszka Pregowska; Magdalena Osial. What Is An Artificial Neural Network And Why Do We Need It? Frontiers for Young Minds 2021, 9, 1 .
AMA StyleAgnieszka Pregowska, Magdalena Osial. What Is An Artificial Neural Network And Why Do We Need It? Frontiers for Young Minds. 2021; 9 ():1.
Chicago/Turabian StyleAgnieszka Pregowska; Magdalena Osial. 2021. "What Is An Artificial Neural Network And Why Do We Need It?" Frontiers for Young Minds 9, no. : 1.
In recent years, you have likely heard that some people are eating gluten-free foods. Have you ever wondered why? Coeliac disease is one of the main reasons for this dietary choice. It affects people of all ages from all around the world. It is a genetic disorder that causes inflammation in the intestines and results in various symptoms that can be observed in other parts of the body. Unfortunately, people often ignore coeliac disease or treat it like a simple allergy. Some people may view gluten-free dietary choices as just a trend. Some food allergies can manifest like coeliac disease, but these have different causes. Coeliac disease should be taken seriously, because it may not only lead to life-threatening symptoms, but also have a chronic impact on health and quality of life.
Magdalena Osial; Agnieszka Pregowska. Coeliac Disease—What is it and How Can People Deal With it? Frontiers for Young Minds 2021, 9, 1 .
AMA StyleMagdalena Osial, Agnieszka Pregowska. Coeliac Disease—What is it and How Can People Deal With it? Frontiers for Young Minds. 2021; 9 ():1.
Chicago/Turabian StyleMagdalena Osial; Agnieszka Pregowska. 2021. "Coeliac Disease—What is it and How Can People Deal With it?" Frontiers for Young Minds 9, no. : 1.
(1) Background: Free space optics communication (FSO) has improved wireless communication and data transfer thanks to high bandwidth, low power consumption, energy efficiency, a high transfer capacity, and a wide applicability field. The FSO systems also have their limitations, including weather conditions and obstacles in the way of transmission. (2) Methods: This research assesses the atmospheric conditions’ influence on the intensity of received radiation, both experimentally and theoretically. The construction of a laboratory test stand of the FSO system, which is operating in the third-atmosphere transmission window (8–12 µm), is proposed. Next, considering different atmospheric conditions, the experimental validation was conducted, both in a laboratory and real conditions. (3) Results: The measurements were carried out for two optical links working with wavelengths of 1.5 µm and 10 µm. It was found that optical radiation with a wavelength of about 10 µm is characterized by better transmission properties in the case of limited visibility (e.g., light rain and fogs) than in the case of near-infrared waves. The same conclusion was found in analytical investigations. (4) Conclusions: The results obtained show that optical radiation with a wavelength of about 10 µm in limited visibility is characterized by better transmission properties than near-infrared waves. This demonstrates the validity of designing FSO links operating in the range 8–12 µm band, e.g., based on quantum cascade lasers and HgCdTe photodiodes.
Magdalena Garlinska; Agnieszka Pregowska; Izabela Gutowska; Magdalena Osial; Janusz Szczepanski. Experimental Study of the Free Space Optics Communication System Operating in the 8–12 µm Spectral Range. Electronics 2021, 10, 875 .
AMA StyleMagdalena Garlinska, Agnieszka Pregowska, Izabela Gutowska, Magdalena Osial, Janusz Szczepanski. Experimental Study of the Free Space Optics Communication System Operating in the 8–12 µm Spectral Range. Electronics. 2021; 10 (8):875.
Chicago/Turabian StyleMagdalena Garlinska; Agnieszka Pregowska; Izabela Gutowska; Magdalena Osial; Janusz Szczepanski. 2021. "Experimental Study of the Free Space Optics Communication System Operating in the 8–12 µm Spectral Range." Electronics 10, no. 8: 875.
Cancer is one of the most common causes of death worldwide, thus new solutions in anticancer therapies are highly sought after. In this work, superparamagnetic iron oxide nanoparticles (SPIONs) conjugated with anticancer drugs are synthesized and investigated as potential magnetic drug nanocarriers for local drug delivery and mild magnetic hyperthermia. We have obtained a hybrid system loaded with holmium and anticancer drugs and thoroughly studied it with respect to the size, morphology, surface modifications and magnetic properties, and interactions with the model of biological membranes, cytotoxicity. We present that nanoparticles having a round shape and size 15 nm are successfully stabilized to avoid their agglomeration and modified with doxorubicin or epirubicin within a controlled way. The number of drugs loaded into the SPIONs was confirmed with thermogravimetry. The hybrid based on SPIONs was investigated in touch with model biological membranes within the Langmuir-Blodgett technique, and results show that modified SPION interacts effectively with them. Results obtained with magnetic hyperthermia and biological studies confirm the promising properties of the hybrid towards future cancer cell treatment.
Dorota Nieciecka; Joanna Celej; Michał Żuk; Agnieszka Majkowska-Pilip; Kinga Żelechowska-Matysiak; Antoni Lis; Magdalena Osial. Hybrid System for Local Drug Delivery and Magnetic Hyperthermia Based on SPIONs Loaded with Doxorubicin and Epirubicin. Pharmaceutics 2021, 13, 480 .
AMA StyleDorota Nieciecka, Joanna Celej, Michał Żuk, Agnieszka Majkowska-Pilip, Kinga Żelechowska-Matysiak, Antoni Lis, Magdalena Osial. Hybrid System for Local Drug Delivery and Magnetic Hyperthermia Based on SPIONs Loaded with Doxorubicin and Epirubicin. Pharmaceutics. 2021; 13 (4):480.
Chicago/Turabian StyleDorota Nieciecka; Joanna Celej; Michał Żuk; Agnieszka Majkowska-Pilip; Kinga Żelechowska-Matysiak; Antoni Lis; Magdalena Osial. 2021. "Hybrid System for Local Drug Delivery and Magnetic Hyperthermia Based on SPIONs Loaded with Doxorubicin and Epirubicin." Pharmaceutics 13, no. 4: 480.
Over the recent decades, conducting polymers have received great interest in many fields including microelectronics, energy conversion devices, and biosensing due to their unique properties like electrical conductivity, stability, and simple synthesis. Modification of conducting polymers with noble metals e.g. gold enhances their properties and opens new opportunities to also apply them in other fields like electrocatalysis. Here, we focus on the synthesis of hybrid material based on polyindole (PIN) nanobrush modified with gold nanoparticles and its application towards electrooxidation of ethanol. The paper presents systematic studies from synthesis to electrochemical sensing applications. For the characterization of PIN–Au composites, scanning electron microscopy and X-ray diffraction analyses were used. The electrocatalytic performance of the proposed hybrid material towards alcohol oxidation was studied in alkaline media by cyclic voltammetry, chronoamperometry, and electrochemical impedance spectroscopy techniques. The results show that PIN–Au hybrid can be employed as an effective and sensitive platform for the detection of alcohols, which makes it a promising material in electrocatalysis or sensors. Moreover, the proposed composite exhibits electrocatalytic activity towards ethanol oxidation, which combined with its good long-term stability opens the opportunity for its application in fuel cells.
Magdalena Warczak; Marianna Gniadek; Kamil Hermanowski; Magdalena Osial. Well-defined polyindole–Au NPs nanobrush as a platform for electrochemical oxidation of ethanol. Pure and Applied Chemistry 2021, 93, 497 -507.
AMA StyleMagdalena Warczak, Marianna Gniadek, Kamil Hermanowski, Magdalena Osial. Well-defined polyindole–Au NPs nanobrush as a platform for electrochemical oxidation of ethanol. Pure and Applied Chemistry. 2021; 93 (4):497-507.
Chicago/Turabian StyleMagdalena Warczak; Marianna Gniadek; Kamil Hermanowski; Magdalena Osial. 2021. "Well-defined polyindole–Au NPs nanobrush as a platform for electrochemical oxidation of ethanol." Pure and Applied Chemistry 93, no. 4: 497-507.
The XXIst century might be called the Plastic Era. With the continually growing consumption and production, low recycling level, one observes the continuous transformation of the Blue Planet into the Ocean of Plastics. Among various problems related to the presence of synthetic materials in the environment, the ghost nets draw particular attention. They are present in the global ocean due to lost or abandoned fishing gear. Their impact on the environment is represented by the tones of animals caught. Moreover, they are an abundant source of secondary marine microplastic and release a considerable amount of toxic chemical compounds. To resolve this issue, an interdisciplinary approach is needed. Chemical research enables a better understanding of polymer behaviour and their weathering, whereas spectroscopy helps in qualitative analyses and proposes solutions. This paper aims to present the interdisciplinary study of this phenomenon and its broad context, including social awareness but underlines the crucial role of chemical research. One focuses on the basic studies of chemical and physical properties as this knowledge provides the first and essential step to tackle the problem.
Agnieszka Dąbrowska; Iwona Łopata; Magdalena Osial. The ghost nets phenomena from the chemical perspective. Pure and Applied Chemistry 2021, 93, 479 -496.
AMA StyleAgnieszka Dąbrowska, Iwona Łopata, Magdalena Osial. The ghost nets phenomena from the chemical perspective. Pure and Applied Chemistry. 2021; 93 (4):479-496.
Chicago/Turabian StyleAgnieszka Dąbrowska; Iwona Łopata; Magdalena Osial. 2021. "The ghost nets phenomena from the chemical perspective." Pure and Applied Chemistry 93, no. 4: 479-496.
Surprisingly, distance education is quite an old concept. Its origins date back to the first correspondence-based course, which took place via the postal service in Boston, USA, in the 18th century. Rapid technological developments, especially in video and audio streaming, have increased the availability of such courses and moved learning into the virtual world. Due to the ongoing COVID-19 pandemic, we are witnessing an accelerated revolution in the learning process, as nearly all forms of education have been shifted online. Will this have a destructive effect on the human psyche? Is humanity sufficiently aware and ready for such a dramatic change? Will we return to physical in-classroom studies, or is remote distance education set to become the new norm? In particular, in medicine, computer science, fine arts, or architectural design, such a rapid change in the way students learn can be quite challenging. In this paper, we provide an overview of the history of distance learning, taking into account teachers’ and students’ points of view in both secondary and higher education.
Agnieszka Pregowska; Karol Masztalerz; Magdalena Garlińska; Magdalena Osial. A Worldwide Journey through Distance Education—From the Post Office to Virtual, Augmented and Mixed Realities, and Education during the COVID-19 Pandemic. Education Sciences 2021, 11, 118 .
AMA StyleAgnieszka Pregowska, Karol Masztalerz, Magdalena Garlińska, Magdalena Osial. A Worldwide Journey through Distance Education—From the Post Office to Virtual, Augmented and Mixed Realities, and Education during the COVID-19 Pandemic. Education Sciences. 2021; 11 (3):118.
Chicago/Turabian StyleAgnieszka Pregowska; Karol Masztalerz; Magdalena Garlińska; Magdalena Osial. 2021. "A Worldwide Journey through Distance Education—From the Post Office to Virtual, Augmented and Mixed Realities, and Education during the COVID-19 Pandemic." Education Sciences 11, no. 3: 118.
Lithium-ion batteries are currently one of the most important mobile energy storage units for portable electronics such as laptops, tablets, smartphones, etc. Their widespread application leads to the generation of large amounts of waste, so their recycling plays an important role in environmental policy. In this work, the process of leaching with sulfuric acid for the recovery of metals from spent Li-ion batteries in the presence of glutaric acid and hydrogen peroxide as reducing agents is presented. Experimental results indicate that glutaric-acid application improves the leaching performance compared to the use of just hydrogen peroxide under the same conditions. Obtained samples of leaching residues after mixed inorganic-organic leaching were characterized with Scanning Electron Microscopy, Fourier Transform Infrared Spectroscopy, and X-ray diffraction.
Weronika Urbańska; Magdalena Osial. Investigation of the Physico-Chemical Properties of the Products Obtained after Mixed Organic-Inorganic Leaching of Spent Li-Ion Batteries. Energies 2020, 13, 6732 .
AMA StyleWeronika Urbańska, Magdalena Osial. Investigation of the Physico-Chemical Properties of the Products Obtained after Mixed Organic-Inorganic Leaching of Spent Li-Ion Batteries. Energies. 2020; 13 (24):6732.
Chicago/Turabian StyleWeronika Urbańska; Magdalena Osial. 2020. "Investigation of the Physico-Chemical Properties of the Products Obtained after Mixed Organic-Inorganic Leaching of Spent Li-Ion Batteries." Energies 13, no. 24: 6732.
Comparative photoelectrochemical studies of cadmium sulfide (CdS) nanoparticles with either hydrophilic or hydrophobic surface properties are presented. Oleylamine organic shells provided CdS nanoparticles with hydrophobic behavior, affecting the photoelectrochemical properties of such nanostructured semiconductor. Hydrophilic CdS nanoparticles were drop-cast on the electrode, whereas the hydrophobic ones were transferred in a controlled manner with Langmuir-Blodgett technique. The substantial hindrance of photopotential and photocurrent was observed for L-B CdS films as compared to the hydrophilic, uncoated nanoparticles that were drop-cast directly on the electrode surface. The electron lifetime in both hydrophilic and hydrophobic nanocrystalline CdS was determined, revealing longer carrier lifetime for oleylamine coated CdS nanoparticles, ascribed to the trapping of charge at the interface of the organic shell/CdS nanoparticle and to the dominant influence of the resistance of the organic shell against the flux of charges. The “on” transients of the photocurrent responses, observed only for the oleylamine-coated nanoparticles, were resolved, yielding the potential-dependent rate constants of the redox processes occurring at the interface.
Momoka Nagamine; Magdalena Osial; Justyna Widera-Kalinowska; Krystyna Jackowska; Paweł Krysiński. Photosensitive Thin Films Based on Drop Cast and Langmuir-Blodgett Hydrophilic and Hydrophobic CdS Nanoparticles. Nanomaterials 2020, 10, 2437 .
AMA StyleMomoka Nagamine, Magdalena Osial, Justyna Widera-Kalinowska, Krystyna Jackowska, Paweł Krysiński. Photosensitive Thin Films Based on Drop Cast and Langmuir-Blodgett Hydrophilic and Hydrophobic CdS Nanoparticles. Nanomaterials. 2020; 10 (12):2437.
Chicago/Turabian StyleMomoka Nagamine; Magdalena Osial; Justyna Widera-Kalinowska; Krystyna Jackowska; Paweł Krysiński. 2020. "Photosensitive Thin Films Based on Drop Cast and Langmuir-Blodgett Hydrophilic and Hydrophobic CdS Nanoparticles." Nanomaterials 10, no. 12: 2437.
ast communication is of high importance. Recently, increased data demand and crowded radio frequency spectrum have become crucial issues. Free-Space Optical Communication (FSOC) has diametrically changed the way people exchange information. As an alternative to wire communication systems, it allows efficient voice, video, and data transmission using a medium like air. Due to its large bandwidth, FSOC can be used in various applications and has therefore become an important part of our everyday life. The main advantages of FSOC are a high speed, cost savings, compact structures, low power, energy efficiency, a maximal transfer capacity, and applicability. The rapid development of the high-speed connection technology allows one to reduce the repair downtime and gives the ability to quickly establish a backup network in an emergency. Unfortunately, FSOC is susceptible to disruption due to atmospheric conditions or direct sunlight. Here, we briefly discuss Free-Space Optical Communication from mirrors and optical telegraphs to modern wireless systems and outline the future development directions of optical communication.
Magdalena Garlinska; Agnieszka Pregowska; Karol Masztalerz; Magdalena Osial. From Mirrors to Free-Space Optical Communication—Historical Aspects in Data Transmission. Future Internet 2020, 12, 179 .
AMA StyleMagdalena Garlinska, Agnieszka Pregowska, Karol Masztalerz, Magdalena Osial. From Mirrors to Free-Space Optical Communication—Historical Aspects in Data Transmission. Future Internet. 2020; 12 (11):179.
Chicago/Turabian StyleMagdalena Garlinska; Agnieszka Pregowska; Karol Masztalerz; Magdalena Osial. 2020. "From Mirrors to Free-Space Optical Communication—Historical Aspects in Data Transmission." Future Internet 12, no. 11: 179.
The present paper demonstrates the feasibility of application of hybrid material based on polyindole and gold nanoparticles as a low-cost and attractive alternative of electrocatalyst utilized for electrooxidation of potential fuel, such as ascorbic acid (AA) for low-temperature fuel cell technology. Polyindole (PIN) has been deposited electrochemically with and without a hard-template method forming nanobrush with well-defined wires. The PIN nanobrush has been decorated with gold nanoparticles and used for AA oxidation. Hybrid material created within this work offers high surface area, thus increasing the current densities recorded during CV experiments, in comparison to those characteristic of the hybrid created without hard-template. The proposed high-surface-area material is a promising substrate for electrooxidation processes.
M. Osial; M. Warczak; P.J. Kulesza; P. Krysiński; M. Gniadek. Hybrid polyindole‑gold nanobrush for electrochemical oxidation of ascorbic acid. Journal of Electroanalytical Chemistry 2020, 877, 114664 .
AMA StyleM. Osial, M. Warczak, P.J. Kulesza, P. Krysiński, M. Gniadek. Hybrid polyindole‑gold nanobrush for electrochemical oxidation of ascorbic acid. Journal of Electroanalytical Chemistry. 2020; 877 ():114664.
Chicago/Turabian StyleM. Osial; M. Warczak; P.J. Kulesza; P. Krysiński; M. Gniadek. 2020. "Hybrid polyindole‑gold nanobrush for electrochemical oxidation of ascorbic acid." Journal of Electroanalytical Chemistry 877, no. : 114664.
Industrialization and the growing consumption of medicines leads to global aquatic contamination. One of the antibiotics widely used against bacterial infections in both human and veterinary medicine is tetracycline. Despite its positive antibiotic action, tetracycline is resistant against degradation, and therefore it accumulates in the environment, including the aquatic environment, creating great health hazards, possibly stimulating antibiotic resistance of pathogenic organisms. In this research, aqueous suspensions of semiconductor nanoparticles CdS were used for photocatalytic activity studies in the presence of methylene blue as a model compound, and finally, in the presence of tetracycline, a broad-spectrum antibiotic widely used against bacterial infections, as well as a live-stock food additive. The mechanism and kinetic rate constants of photocatalytic degradation processes of methylene blue and tetracycline were described in correlation with the energy diagram of CdS nanoparticles.
Momoka Nagamine; Magdalena Osial; Krystyna Jackowska; Pawel Krysinski; Justyna Widera-Kalinowska. Tetracycline Photocatalytic Degradation under CdS Treatment. Journal of Marine Science and Engineering 2020, 8, 483 .
AMA StyleMomoka Nagamine, Magdalena Osial, Krystyna Jackowska, Pawel Krysinski, Justyna Widera-Kalinowska. Tetracycline Photocatalytic Degradation under CdS Treatment. Journal of Marine Science and Engineering. 2020; 8 (7):483.
Chicago/Turabian StyleMomoka Nagamine; Magdalena Osial; Krystyna Jackowska; Pawel Krysinski; Justyna Widera-Kalinowska. 2020. "Tetracycline Photocatalytic Degradation under CdS Treatment." Journal of Marine Science and Engineering 8, no. 7: 483.
Efficient electrochemical generation of hydrogen peroxide via oxygen reduction is of great interest for industrial and clean energy applications. In this work, we report the application of conducting polymer - polyindole (PIN) films for electrogeneration of hydrogen peroxide. Polyindole films were electrochemically polymerized on gold substrates in non-aqueous electrolytes and then tested for electrocatalytic properties in acidic aqueous solutions. We find that PIN can serve as an electrocatalyst for oxygen reduction reaction via a two-electron pathway. Electrolysis performance indicates that PIN is an efficient, selective, and stable electrocatalyst for hydrogen peroxide generation at low pH, and suggests PIN as a conducting polymer with useful electrocatalytic properties in scientific experiments and applications.
Magdalena Warczak; Magdalena Osial; Magnus Berggren; Eric Daniel Głowacki. Electrogeneration of Hydrogen Peroxide via Oxygen Reduction on Polyindole Films. Journal of The Electrochemical Society 2020, 167, 086502 .
AMA StyleMagdalena Warczak, Magdalena Osial, Magnus Berggren, Eric Daniel Głowacki. Electrogeneration of Hydrogen Peroxide via Oxygen Reduction on Polyindole Films. Journal of The Electrochemical Society. 2020; 167 (8):086502.
Chicago/Turabian StyleMagdalena Warczak; Magdalena Osial; Magnus Berggren; Eric Daniel Głowacki. 2020. "Electrogeneration of Hydrogen Peroxide via Oxygen Reduction on Polyindole Films." Journal of The Electrochemical Society 167, no. 8: 086502.
Iron oxide-based nanoparticles have been modified in their core with holmium(III) in an amount affecting only slightly their magnetic properties. Nanoparticles were conjugated covalently with biomolecule of trastuzumab (Herceptin®), the monoclonal antibody that recognizes cancer cells overexpressing HER2 receptors targeting such nanoparticles to the specified tumor tissues. Systematic studies of Ho3+-doped bioconjugates were carried out as a preliminary step for future replacement of ‘cold’ Ho with 166Ho radionuclide, emitting ‘soft’ beta(-) radiation for possible targeted radionuclide therapy. Physicochemical properties of the obtained bioconjugates were subsequently tested for use in magnetic hyperthermia, considered as an effective, low-invasiveness anticancer therapy. With such a system we expect to achieve both: active targeting and multimodal action by simultaneous internal and localized irradiation and magnetic hyperthermia of specific cancers.
Weronika Gawęda; Magdalena Osial; Michał Żuk; Marek Pękała; Aleksander Bilewicz; Pawel Krysinski. Lanthanide-Doped SPIONs Bioconjugation with Trastuzumab for Potential Multimodal Anticancer Activity and Magnetic Hyperthermia. Nanomaterials 2020, 10, 288 .
AMA StyleWeronika Gawęda, Magdalena Osial, Michał Żuk, Marek Pękała, Aleksander Bilewicz, Pawel Krysinski. Lanthanide-Doped SPIONs Bioconjugation with Trastuzumab for Potential Multimodal Anticancer Activity and Magnetic Hyperthermia. Nanomaterials. 2020; 10 (2):288.
Chicago/Turabian StyleWeronika Gawęda; Magdalena Osial; Michał Żuk; Marek Pękała; Aleksander Bilewicz; Pawel Krysinski. 2020. "Lanthanide-Doped SPIONs Bioconjugation with Trastuzumab for Potential Multimodal Anticancer Activity and Magnetic Hyperthermia." Nanomaterials 10, no. 2: 288.
The exceptional magnetic properties of superparamagnetic iron oxide nanoparticles (SPIONs) make them promising materials for biomedical applications like hyperthermia, drug targeting and imaging. Easy preparation of SPIONs with the controllable, well-defined properties is a key factor of their practical application. In this work, we report a simple synthesis of Ho-doped SPIONs by the co-precipitation route, with controlled size, shape and magnetic properties. To investigate the influence of the ions ratio on the nanoparticles’ properties, multiple techniques were used. Powder X-ray diffraction (PXRD) confirmed the crystallographic structure, indicating formation of an Fe3O4 core doped with holmium. In addition, transmission electron microscopy (TEM) confirmed the correlation of the crystallites’ shape and size with the experimental conditions, pointing to critical holmium content around 5% for the preparation of uniformly shaped grains, while larger holmium content leads to uniaxial growth with a prism shape. Studies of the magnetic behaviour of nanoparticles show that magnetization varies with changes in the initial Ho3+ ions percentage during precipitation, while below 5% of Ho in doped Fe3O4 is relatively stable and sufficient for biomedicine applications. The characterization of prepared nanoparticles suggests that co-precipitation is a simple and efficient technique for the synthesis of superparamagnetic, Ho-doped SPIONs for hyperthermia application.
Magdalena Osial; Paulina Rybicka; Marek Pękała; Grzegorz Cichowicz; Michał K. Cyrański; Paweł Krysiński. Easy Synthesis and Characterization of Holmium-Doped SPIONs. Nanomaterials 2018, 8, 430 .
AMA StyleMagdalena Osial, Paulina Rybicka, Marek Pękała, Grzegorz Cichowicz, Michał K. Cyrański, Paweł Krysiński. Easy Synthesis and Characterization of Holmium-Doped SPIONs. Nanomaterials. 2018; 8 (6):430.
Chicago/Turabian StyleMagdalena Osial; Paulina Rybicka; Marek Pękała; Grzegorz Cichowicz; Michał K. Cyrański; Paweł Krysiński. 2018. "Easy Synthesis and Characterization of Holmium-Doped SPIONs." Nanomaterials 8, no. 6: 430.
Span>Organic inhibitors have attracted considerable attention due to their promising application as admixtures in concrete protecting against corrosion of rebars. Over the last decade the use of those inhibitors significantly raised. The inhibition efficiency depends on their physical and chemical properties. This paper gives short overview of the protection of steel in concrete against the ingress of chlorides, oxygen and carbon dioxide in concrete, as species causing the corrosion of rebars. This work involves only organic inhibitors.
Magdalena Osial. Organic substances as corrosion inhibitors for steel in concrete – an overview. 2016, 1 .
AMA StyleMagdalena Osial. Organic substances as corrosion inhibitors for steel in concrete – an overview. . 2016; ():1.
Chicago/Turabian StyleMagdalena Osial. 2016. "Organic substances as corrosion inhibitors for steel in concrete – an overview." , no. : 1.
Magdalena Osial. Room temperature two-step synthesis of cadmium telluride films. 2014, 1 .
AMA StyleMagdalena Osial. Room temperature two-step synthesis of cadmium telluride films. . 2014; ():1.
Chicago/Turabian StyleMagdalena Osial. 2014. "Room temperature two-step synthesis of cadmium telluride films." , no. : 1.
Magdalena Osial; Justyna Widera; Krystyna Jackowska. Synthesis, characterization and photoelectrochemical properties of polyindole-CdTe hybrid material. Electrochimica Acta 2014, 122, 275 -281.
AMA StyleMagdalena Osial, Justyna Widera, Krystyna Jackowska. Synthesis, characterization and photoelectrochemical properties of polyindole-CdTe hybrid material. Electrochimica Acta. 2014; 122 ():275-281.
Chicago/Turabian StyleMagdalena Osial; Justyna Widera; Krystyna Jackowska. 2014. "Synthesis, characterization and photoelectrochemical properties of polyindole-CdTe hybrid material." Electrochimica Acta 122, no. : 275-281.
The results of the influence of electrodeposition conditions on the structural, compositional, optical, and photoelectrochemical properties of CdTe thin films deposited in one-step electrochemical method are presented. The CdTe films were prepared electrochemically from aqueous acidic solution with low ratios of Cd2+ ions to Te(IV) ions concentration. Instead of commonly used TeO2, water-soluble Na2TeO3 was used as a source of tellurium ions. The cathodic deposition of CdTe was performed at different constant potentials from solutions containing different cadmium and tellurium ions concentration. As-deposited CdTe thin films were studied by different analytical techniques. The X-ray photoelectron spectroscopy spectra exhibited CdTe formation on the electrode with some amount of tellurium oxides and cadmium oxides. The best quality CdTe deposits, free of TeO2, were formed in bath containing excess of Cd2+ ions and at the potential of −0.65 V vs. saturated calomel electrode, slightly more positive than E eq of Cd/Cd2+ system. Structural X-ray diffraction studies revealed polycrystallinity of deposits with the highest content of the (111)-oriented cubic (111) form. Optical band gap energy values were found in the range from 1.36 to 1.6 eV for CdTe films prepared at various synthesis conditions. The preliminary photoelectrochemical studies have shown that the variation of the deposition potential as well as bath composition leads to the formation of p- or n-type CdTe films. As-deposited CdTe films were not stable in polysulfide solution under illumination.
Magdalena Osial; Justyna Widera; Krystyna Jackowska. Influence of electrodeposition conditions on the properties of CdTe films. Journal of Solid State Electrochemistry 2013, 17, 2477 -2486.
AMA StyleMagdalena Osial, Justyna Widera, Krystyna Jackowska. Influence of electrodeposition conditions on the properties of CdTe films. Journal of Solid State Electrochemistry. 2013; 17 (9):2477-2486.
Chicago/Turabian StyleMagdalena Osial; Justyna Widera; Krystyna Jackowska. 2013. "Influence of electrodeposition conditions on the properties of CdTe films." Journal of Solid State Electrochemistry 17, no. 9: 2477-2486.
In this work we examined the electrochemical properties of poly(indole-5-carboxylic acid), PIn5COOH. The polymer was produced by electrochemical polymerisation using cyclic voltammetry (CV). It was shown that PIn5COOH is electroactive in aqueous solutions showing two redox processes in acidic solution and one redox process in solutions with pH > 4. The oxidation of catechol (CT) on Pt/In5COOH modified electrodes was investigated by cyclic voltammetry (CV) and rotating disc electrode (RDE) voltammetry. It was established that CT was oxidised only after the oxidation of polymer film was initiated and that polymer significantly enhanced the oxidation and reduction peak currents in comparison with bare Pt electrode. The variation of peak currents (i pa, i pc) as a function of CT concentration was found to be linear up to 6 mM. Experiments with a rotating disk electrode show that the oxidation reaction of catechol occures not only at the polymer/electrolyte interface but also in the polymer film.
A. Bieguñki; A. Frydrychewicz; Magdalena Osial; K. Jackowska. Electrochemical oxidation of catechol at poly(indole-5-carboxylic acid) electrode. Russian Journal of Electrochemistry 2010, 46, 1297 -1305.
AMA StyleA. Bieguñki, A. Frydrychewicz, Magdalena Osial, K. Jackowska. Electrochemical oxidation of catechol at poly(indole-5-carboxylic acid) electrode. Russian Journal of Electrochemistry. 2010; 46 (11):1297-1305.
Chicago/Turabian StyleA. Bieguñki; A. Frydrychewicz; Magdalena Osial; K. Jackowska. 2010. "Electrochemical oxidation of catechol at poly(indole-5-carboxylic acid) electrode." Russian Journal of Electrochemistry 46, no. 11: 1297-1305.