Open Access Conference Proceedings

Abstract: Plasmonic nanoantennas represent advanced structures that allow sub-diffraction manipulation with light energy and its simultaneous focus below the diffraction limit. Gigantic focusing of light energy in the desired targeted place allows for the realization of several phenomena, such as plasmon-induced charge energy transfer of excitation/injection of so-called hot electrons. [..] Read more

Abstract: This study is focused on how the application of pulsed substrate bias during cathodic arc deposition affects the microstructure, texture, grain size and phase composition of (Ti,Al)N coatings. A series of Tix-1AlxN, 0.25≤x≤0.55 coatings were deposited on WC-Co cemented carbide substrates with -30 V, -60 V and -300 V pulsing bias (duty cycle 10 % and a frequence of 1 kHz) under controlled chamber conditions at 4.5 Pa N2-gas and a substrate temperature about 400 °C. [..] Read more

Abstract: In this contribution, we examine the diffusion dynamics of methylene blue dye through a layered membrane, constructed with a specific count of nonwoven polypropylene textiles and intervening layers of gelatin hydrogel. The hydrogel ostensibly functions as the diffusion medium, while the nonwoven textile provides structural reinforcement. [..] Read more

Abstract: The field of tissue engineering has witnessed significant progress in the development of vascular grafts for critical applications in cardiovascular surgery; however, the current vascular grafts still suffer from certain inadequacies such as thrombosis, intimal hyperplasia, and compliance mismatch. Among the various fabrication techniques, coaxial electrospinning has emerged as a promising method to produce vascular grafts due to its ability to tailor the architecture and composition of fibers for creating core-shell fibers, enabling the incorporation of both miscible and immiscible polymers and functional properties within the same fiber. [..] Read more

Abstract: Disorders and diseases of the brain present an enormous challenge due to the physical and physiological properties of the blood-brain barrier (BBB), making entry for therapeutics difficult. In recent years, increased research has focused on using magnetic ferrite nanoparticles (NPs) in various biomedical applications. [..] Read more

Abstract: The development of nanomaterials for various purposes has led to the diversification of their fields of application but has also raised questions regarding the environmental safety of releasing NPs into the environment. In the biotechnology of microalgae and cyanobacteria, NPs can serve as biotechnological tools to control specific processes. [..] Read more

Abstract: Plastic waste has been a growing threat to the environment and society. As most plastics are made from petroleum, eco-friendlier material, named bio-based plastics, made fully or partially from renewable sources, have been introduced and expected to be more biodegradable. [..] Read more

Abstract: Despite the importance of thiorphan as a small molecule with vital biological roles, its interactions with zinc oxide (ZnO) nanomaterials that are prospective in drug delivery and theranostic applications have not yet been sufficiently explored. Here the impact of surface polarity of different ZnO surfaces on thiorphan adsorption is studied experimentally by combined in-situ scanning electron microscope (SEM) and atomic force microscope (AFM). [..] Read more

Abstract: Correlative Probe Electron Microscopy (CPEM) was used to investigate the topographical and electronic emission properties of gallium-doped zinc oxide nanorods (ZnO:Ga) after low pressure hydrogen or oxygen plasma treatment. Simultaneous secondary electron (SE) and back-scattered electron (BSE) emission information from the same nanorods enabled true correlation with the topographical information obtained by atomic force microscopy (AFM). [..] Read more

Abstract: The study focuses on the synthesis of metallic nanoparticles (NPs) by gas aggregation of magnetron sputtered atoms. Such NPs have gained significant attention because of their wide potential applications. [..] Read more

Abstract: Atomic Force Microscopy (AFM) belongs to the nanoimaging methods employing the fine driving of the probe movement, where its interaction with the sample gives a detailed view of the surface structure. The ability to control the motion of the sample and thus its force interaction with the surface provides the possibility to map the sample's mechanical properties at the nanoscale, but also, for example, to influence the sample, even destructively, which can provide further interesting information. [..] Read more

Abstract: The extensive studies in nanoscience in the last decades are dedicated to the development of new protocols for the preparation of nanoparticles (NPs) with controlled size and shape. The dimensions and steric parameters influence the reactivity, catalytic, electrical, and optical properties and define the application of NPs in various fields: catalysis, sensing, medicine, electronics, etc. [..] Read more

Abstract: This paper describes the performance of the chemical-mechanical processing of GO, rGO and biochar (ball mill grinding in (NH4)2SO4) to obtain a nanomaterial for application as a supercapacitor. The synthesis of carbon nanomaterials, including their characterization according to available measurement techniques, is presented in this paper as well. [..] Read more

Abstract: We report the optical and dielectric properties of a multilayer system constituted by ITO, an square-arrangement of Ag nanoparticles (NPs) on the uniaxial LiNbO3, the polymer PMMA and the substrate SiO2. We investigate the compositional and geometrical parameters dependences on the optical absorption of the stacked layers. [..] Read more

Abstract: In this paper we present a comparative study of the magneto-optical properties of quasi-two-dimensional electrons in a graphene-like semiconductor superlattice composed of circular and elliptical quantum dots. The effect of transverse magnetic field on the band structure and absorption coefficient of the considered structures is studied. [..] Read more

Abstract: Recently, vanadium oxides and other semiconductor substrates have been intensively studied for surface-enhanced Raman scattering (SERS) spectroscopy due to their advantages such as greater uniformity, stability, and measurement reproducibility compared to plasmonic substrates. Combining vanadium oxide substrates with nanostructures of various noble metals has shown promise for enhancing the signal while retaining the previously mentioned advantages. [..] Read more

Abstract: Heaters are an indispensable part of gas sensing platforms. It serves to heat the sensor, which increases the sensitivity of the active layer and helps in the desorption of the detected gas. [..] Read more

Abstract: Single-crystalline silicon with a porous structure at the micrometer to nanometer level is currently used as a sensor for electrochemical or optical-based detection because of its exceptional optical, surface, and electronic properties. However, further research into this structured nanomaterial is ongoing and points to its potential use in other detection and sensor fields. [..] Read more

Abstract: Organic thermoelectric (TE) materials combine TE conversion with flexibility, and could facilitate development of self-sustainable wearable electronic devices. In these systems, organic TE materials-based flexible TE generators could generate power from the temperature differences between human body and ambient environment for non-stop operation of self-sustainable wearable electronics without the necessity of external recharging. [..] Read more

Abstract: Recent technological advancements require development of cost-effective and high-performance magnets which ideally do not contain rare earth metals or noble metals. The promising candidates are Fe-Ni-based alloys, in particular, the Fe50Ni50 L10 phase (tetrataenite), which has a great perspective for producing hard magnetic materials. [..] Read more