Athanasios Smyrnakis

ORCID: 0000-0003-1677-4214
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About
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Research Areas
  • Surface Modification and Superhydrophobicity
  • Nanowire Synthesis and Applications
  • Mass Spectrometry Techniques and Applications
  • Analytical Chemistry and Chromatography
  • Genomics and Phylogenetic Studies
  • Advanced Proteomics Techniques and Applications
  • Glycosylation and Glycoproteins Research
  • Flavonoids in Medical Research
  • Aluminum Alloys Composites Properties
  • Plasma Diagnostics and Applications
  • Semiconductor materials and devices
  • Diamond and Carbon-based Materials Research
  • Advancements in Semiconductor Devices and Circuit Design
  • Additive Manufacturing and 3D Printing Technologies
  • Additive Manufacturing Materials and Processes
  • Carbohydrate Chemistry and Synthesis
  • Nanofabrication and Lithography Techniques
  • Receptor Mechanisms and Signaling
  • Cell Adhesion Molecules Research
  • Semiconductor materials and interfaces
  • Marine Biology and Environmental Chemistry
  • Metal and Thin Film Mechanics
  • Calcium Carbonate Crystallization and Inhibition
  • X-ray Spectroscopy and Fluorescence Analysis
  • Advanced X-ray Imaging Techniques

National Centre of Scientific Research "Demokritos"
2012-2023

National Technical University of Athens
2015-2017

Multidimensional multiple-stage tandem processing of ions is demonstrated successfully in a novel segmented linear ion trap. The enhanced performance enabled by incorporating the entire range activation methods into single platform highly dynamic fashion. network comprises external injection reagent ions, radical neutral species, photons, electrons, and collisions with neutrals. Axial segmentation two-dimensional trapping field provides access to unique functionality landscape through system...

10.1021/jasms.2c00214 article EN cc-by-nc-nd Journal of the American Society for Mass Spectrometry 2022-09-16

In this work we investigate both experimentally and theoretically the optical properties of aligned, perpendicular to substrate, high aspect ratio (AR), plasma etched Si nanowires (SiNWs) with controlled variability. We focus on role imperfections in fabrication, which manifest themselves as dimensional variability SiNW, lattice defects or positional randomization. SiNW arrays are fabricated by e-beam lithography (perfectly ordered array) colloidal particle self-assembly (quasi-ordered...

10.1088/0957-4484/26/8/085301 article EN Nanotechnology 2015-02-03

We present the concept of combined synthesis organic–inorganic nanocomposite coatings and atmospheric pressure plasma etching/nanotexturing for tailoring surface topography fabricating multifunctional surfaces. As demonstration, we fabricated superhydrophobic ZnO/poly(methyl methacrylate) (PMMA) coatings. Composite differing in ZnO content were synthesized etched a dielectric barrier discharge operating He/O2 an open-air environment. The phase selective etching organic over inorganic matter...

10.1021/acsanm.9b00381 article EN ACS Applied Nano Materials 2019-04-25

We describe an instrument configuration based on the Orbitrap Exploris 480 mass spectrometer that has been coupled to Omnitrap platform. The possesses three distinct ion-activation regions can be used perform resonant-based collision-induced dissociation, several forms of electron-associated fragmentation, and ultraviolet photodissociation. Each section also combined with infrared multiphoton dissociation. In this work, we demonstrate all these modes operation in a range peptides proteins....

10.1021/acs.analchem.3c01899 article EN cc-by Analytical Chemistry 2023-08-03

EED MS 2 spectra were used to generate candidate topologies and guide selection of fragment(s) for 3 analysis. Isotoplogies indistinguishable at the level may be differentiated by CID-EED

10.1039/d3sc00870c article EN cc-by Chemical Science 2023-01-01

MS SPIDOC is a novel sample delivery system designed for single (isolated) particle imaging at X-ray Free-Electron Lasers that adaptable towards most large-scale facility beamlines. Biological samples can range from small proteins to MDa particles. Following nano-electrospray ionization, ionic be m/z-filtered and structurally separated before being oriented the interaction zone. Here, we present simulation package developed alongside this prototype. The first part describes how front-to-end...

10.1007/s00216-023-04658-y article EN cc-by Analytical and Bioanalytical Chemistry 2023-04-04

Abstract Hierarchical micro-nanostructured surfaces are key components of ‘smart’ multifunctional materials, used to control wetting, adhesion, tactile, friction, optical, antifogging, antibacterial, and many more surface properties. comprise random or ordered structures ranked by their length scale spanning the range from a few nanometers micrometers, with larger microstructures typically embedding smaller nanostructures. Despite importance hierarchical surfaces, there have been studies on...

10.1088/1361-6528/abe6ca article EN Nanotechnology 2021-02-16

We propose a new route for pattern formation based on atmospheric pressure plasma directed assembly during photoresist removal. Atmospheric etching of AZ5214E resist coated Silicon leads to the periodic, oxygen-plasma resistant residuals underlying substrate. The O2 content in He/O2 gas feed was found play significant role size and density formed structures. Fourier analysis spatial morphology surfaces confirmed quantitatively approximate periodicity its dependence content. XPS revealed...

10.1016/j.mne.2019.03.001 article EN cc-by-nc-nd Micro and Nano Engineering 2019-03-11

Abstract Long‐lasting underwater superhydrophobicity involves stable‐in‐time air layer trapped and retained between a submersed surface the overlying liquid. Due to its nature, it is rather difficult accurately observe this in submerged systems, let alone measure it. Here, white light reflectance spectroscopy used for real‐time monitoring (acquisition speed 50–200 ms) of as well calculation entrapped thickness on “everlasting” polymeric superhydrophobic surfaces fabricated by plasma...

10.1002/admi.202101393 article EN Advanced Materials Interfaces 2021-12-17

Abstract We describe an instrument configuration based on the Orbitrap Exploris 480 mass spectrometer that has been coupled to Omnitrap platform. The possesses three distinct ion-activation regions, can be used perform resonant collision induced dissociation, several forms of electron associated fragmentation, and ultraviolet photodissociation. Each section also combined with infrared multiphoton dissociation. In this work, we demonstrate all these modes operation a range peptides proteins....

10.1101/2023.05.15.540788 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2023-05-18

Comprehensive de novo glycan sequencing remains an elusive goal due to the structural diversity and complexity of glycans. Present strategies employing collision-induced dissociation (CID) higher energy collisional (HCD)-based multi-stage tandem mass spectrometry (MSn) or MS/MS combined with sequential exoglycosidase digestion are inherently low-throughput difficult automate. Compared CID HCD, electron transfer (ETD) capture (ECD) each generate more cross-ring cleavages informative about...

10.26434/chemrxiv-2022-f8n3b-v2 preprint EN cc-by-nc-nd 2023-05-22

Not available

10.3384/wcc2.262-265 article EN Linköping Electronic Press Workshop and Conference Collection 2013-03-04

Comprehensive de novo glycan sequencing remains an elusive goal due to the structural diversity and complexity of glycans. Present strategies employing collision-induced dissociation (CID) higher energy collisional (HCD)-based multi-stage tandem mass spectrometry (MSn) or MS/MS combined with sequential exoglycosidase digestion are inherently low-throughput difficult automate. Compared CID HCD, electron transfer (ETD) capture (ECD) each generate more cross-ring cleavages informative about...

10.26434/chemrxiv-2022-f8n3b preprint EN cc-by-nc-nd 2022-11-04
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