A5063441865- Anodic Oxide Films and Nanostructures
- Photonic Crystals and Applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Optical Coatings and Gratings
- Plasmonic and Surface Plasmon Research
- Advanced biosensing and bioanalysis techniques
- Advanced Fiber Optic Sensors
- Optical and Acousto-Optic Technologies
- Nanofabrication and Lithography Techniques
- Photonic and Optical Devices
- Quantum Dots Synthesis And Properties
- Topological Materials and Phenomena
- Optical Systems and Laser Technology
- Nanowire Synthesis and Applications
- Advanced Electron Microscopy Techniques and Applications
- Analytical Chemistry and Sensors
- Advanced Radiotherapy Techniques
- Mycorrhizal Fungi and Plant Interactions
- Advanced Surface Polishing Techniques
- Molecular Junctions and Nanostructures
- Fungal Biology and Applications
- Force Microscopy Techniques and Applications
- Ga2O3 and related materials
- Forest Ecology and Biodiversity Studies
- Semiconductor materials and devices
University of Latvia
2014-2025
Vilnius University
2024
Liga Contra el Cancer
2022
Background/Objectives: Despite advances in diagnostic techniques, accurate classification of lung cancer subtypes remains crucial for treatment planning. Traditional methods like genomic studies face limitations such as high cost and complexity. This study investigates whether integrating atomic force microscopy (AFM) measurements with conventional clinical histopathological data can improve subtype classification. Methods: We developed analyzed a novel dataset combining clinical,...
This study demonstrates a new, robust, and accessible deposition technique of metal nanoparticle arrays (NPAs), which uses nanoporous anodic alumina (NAA) as template for capillary force-assisted convective colloid (40, 60, 80 nm diameter Au) assembly. The NPA density size can be independently tuned by the anodization conditions synthesis protocols. enables production non-touching variable-density NPAs with controllable gaps in 20-60 range. nearest neighbor center distance present was fixed...
We present a systematic study of membrane structure (pore diameter and arrangement) in anodized aluminum oxide (AAO) layers obtained by anodization voltages 8–20 V sulfuric 15–40 oxalic acid electrolyte solutions. Anodization bulk at 10 potential was found to be optimal for production or ultrathin freestanding membranes with pore sub-20 nm range. The developed process slow electrochemical reaction results AAO thickness below 70 nm. minimum required time formation continuous determined...
An electrochemically synthesised porous anodic aluminium oxide (pAAO) layer has been analysed by means of spectroscopic ellipsometry. The determined thickness the formed pAAO obtained from ellipsometry measurements and modelling was 322.75 ± 0.12 nm. radius nanopores estimated SEM images 39 5 nm distance between 107 6 investigation human serum albumin (HSA) adsorption on coating showed that: (i) protein concentration inside nanopores, depending exposure time, approximately 200 up to 600...
Enhanced plasmonic attenuation of reflection is observed in a gold–alumina–aluminum multilayer system near the interferometric anti-reflection condition.
Continuously variable thickness porous anodic aluminum oxide (PAAO) films were obtained using electrochemical oxidation of bulk sheet while both electrodes simultaneously withdrawn from the electrolyte solution. The gradient was controlled by withdrawal rate (1-10 mm/min range) and variation demonstrated below 50 nm to above 1 micrometer. increased linearly with sample lateral coordinate, whereas nanopore structure (diameter interpore distance) remained unchanged. Effects initial pore growth...
Abstract In the present work, a catalyst-free physical vapour deposition method is used to synthesize high yield of Bi 2 Se 3 nanoribbons. By replacing standard glass or quartz substrates with aluminium covered ultrathin porous anodized oxide (AAO), number synthesized nanoribbons per unit area can be increased by 20–100 times. The mechanisms formation and on AAO having different arrangement size pores are analysed discussed. It shown that average length base tuned adjustment synthesis...
Zinc oxide (ZnO) and porous anodic aluminum (PAAO) are technologically important materials, rich with features that of interest in optical applications, for example, light-emitting sensing devices. Here, we present synthesis method aligned ZnO nanorods (NR) 40 nm diameter variable length 150 to 500 range obtained by atomic layer deposition (ALD) pores continuously thickness PAAO. The relative intensity yellow (1.99 eV), green (2.35 blue (2.82 eV) photoluminescence (PL) components originating...
A new composite metal-insulator-metal (MIM) system consisting of exceptionally dense non-close-packed (NCP) arrays gold or silver nanoparticles, porous anodic aluminum oxide (PAAO), and bulk substrate interacts strongly with visible light may become a very useful component for optical applications. The proposed MIM structure can be synthesized using accessible lithography-free chemical physical processes (anodization capillary force assisted colloidal particle deposition) that are suitable...
Electrochemical etching of metal wires is widely used to fabricate sharp probes for use in scanning tunnelling microscopy. In this work an electrochemical fabrication method aluminium coated with nanoporous anodised oxide (AAO) layer described. The presented here involves simultaneous anodisation and wires. probe apex radius as well the nanopore length diameter depend on mode, which could be direct current (DC), alternating (AC), or pulsed voltage mode (PVM). probes, a AAO layer, were...
Porous anodic aluminum oxide (PAAO), sometimes referred to as nanoporous alumina, serves a cost-effective template for nanofabrication in many fields of science and engineering. However, production ultrathin PAAO membranes with precise thickness the optical sub-wavelength range remains challenging because difficulties regarding process control at initial stage oxidation. In this study, we demonstrate technique consistently manufacturing targeted thickness. An electrochemical cell an window...
We report on light scattering by dense short-range ordered gold and silver nanoparticle arrays with 25 nm diameter 50 center separation produced masked deposition through anodized aluminum oxide membranes. Local resonant regions are formed, which scatter polarization components perpendicular to the incident wave due electromagnetic coupling between particles at random angles. The observed cross-polarized far-field images have a granular structure that morphs in response environmental...
We examine the influence of colloidal Au and Ag nanoparticles (NP) on hydrothermally grown ZnO nanorods (NR). Individual 60 nm diameter NP small assemblies without formation large aggregates were deposited poly-L-lysine covered NR films using dip-coating method. The evaluation morphological optical properties obtained ZnO-metal hybrids was done scanning electron microscopy, photoluminescence (PL) diffuse reflection spectroscopy. presence selectively suppressed PL components near 560...