62 citations · 483 across the 28 of their papers we have counts for
28 papers
Atomistic modelling and structural characterisation of coated gold nanoparticles for biomedical applications
Matthew D. Dickers, Alexey V. Verkhovtsev, Nigel J. Mason +1
This study presents the results of atomistic structural characterisation of 3.7 nm diameter gold nanoparticles (NP) coated with polymer polyethylene glycol (PEG)-based ligands of d…
Topical Issue "Dynamics of Systems on the Nanoscale (2021)". Editorial
Alexey V. Verkhovtsev, Vincenzo Guidi, Nigel J. Mason +1
Exploration of the structure formation and dynamics of animate and inanimate matter on the nanometer scale is a highly interdisciplinary field of rapidly emerging research. It is r…
Bombardment of CO ice by cosmic rays: I. Experimental insights into the microphysics of molecule destruction and sputtering
Alexei V. Ivlev, Barbara M. Giuliano, Zoltán Juhász +12
We present a dedicated experimental study of microscopic mechanisms controlling radiolysis and sputtering of astrophysical ices due to their bombardment by cosmic ray ions. Such io…
Sulfur Ion Implantations Into Condensed CO2: Implications for Europa
D. V. Mifsud, Z. Kaňuchová, P. Herczku +12
The ubiquity of sulfur ions within the Jovian magnetosphere has led to suggestions that the implantation of these ions into the surface of Europa may lead to the formation of SO2.…
Energetic Electron Irradiations of Amorphous and Crystalline Sulphur-Bearing Astrochemical Ices
Duncan V. Mifsud, Péter Herczku, Richárd Rácz +10
Laboratory experiments have confirmed that the radiolytic decay rate of astrochemical ice analogues is dependent upon the solid phase of the target ice, with some crystalline molec…
Ozone Production in Electron Irradiated CO2:O2 Ices
Duncan V. Mifsud, Zuzana Kaňuchová, Sergio Ioppolo +9
The detection of ozone (O3) in the surface ices of Ganymede, Jupiters largest moon, and of the Saturnian moons Rhea and Dione, has motivated several studies on the route of formati…
Laboratory Experiments on the Radiation Astrochemistry of Water Ice Phases
Duncan V. Mifsud, Perry A. Hailey, Péter Herczku +8
Water (H2O) ice is ubiquitous component of the universe, having been detected in a variety of interstellar and Solar System environments where radiation plays an important role in…
Structural Analysis of Si(OEt)4 Deposits on Au(111)/SiO2 Substrates at Nanometer Scale using Focused Electron Beam Induced Deposition
Po-Shi Yuan, Nigel Mason, Maria Pintea +2
The focused electron beam induced deposition (FEBID) process was used by employing a Gemini SEM with a beam characteristic of 1keV and 24pA for the deposition of pillars and line s…
Dissociative electron attachment to gold(i) based compounds: 4,5-dichloro 1,3-diethyl imidazolylidene trifluoromethyl gold(i)
Maria Pintea, Nigel Mason, Anna Peiro Franch +5
With the use of proton-NMR and powder XRD (XRPD) studies, the suitability of specific Au FEBID precursors has been investigated to low electron energy, structure, excited states an…
Comparative Electron Irradiations of Amorphous and Crystalline Astrophysical Ice Analogues
Duncan V. Mifsud, Perry A. Hailey, Péter Herczku +8
Laboratory studies of the radiation chemistry occurring in astrophysical ices have demonstrated the dependence of this chemistry on a number of experimental parameters. One experim…
Dissociative Electron Attachment Cross Sections for Ni(CO)4, Co(CO)3NO, Cr(CO)6
Maria Pintea, Nigel Mason, Maria Tudorovskaya
The Ni(CO)4, Cr(CO)6, Co(CO)3NO are some of the most common precursors used for the focused electron-induced deposition. Some of the compounds, even though extensively used have hi…
Velocity Map Imaging and Cross Sections of Fe(CO)5 for FEBIP Applications
Maria Pintea, Nigel Mason, Maria Tudorovskaya
The present paper intends to be a new study of a widely used precursor in nanostructure deposition and FEBID processes with a focus on its fragmentation at collisions with low-ener…
Electron Irradiation and Thermal Chemistry Studies of Interstellar and Planetary Ice Analogues at the ICA Astrochemistry Facility
Duncan V. Mifsud, Zoltán Juhász, Péter Herczku +10
The modelling of molecular excitation and dissociation processes relevant to astrochemistry requires the validation of theories by comparison with data generated from laboratory ex…
The Ice Chamber for Astrophysics-Astrochemistry (ICA): A New Experimental Facility for Ion Impact Studies of Astrophysical Ice Analogues
Péter Herczku, Duncan V. Mifsud, Sergio Ioppolo +11
The Ice Chamber for Astrophysics-Astrochemistry (ICA) is a new laboratory end-station located at the Institute for Nuclear Research (Atomki) in Debrecen, Hungary. The ICA has been…
The Role of Terahertz and Far-IR Spectroscopy in Understanding the Formation and Evolution of Interstellar Prebiotic Molecules
Duncan V. Mifsud, Perry A. Hailey, Alejandra Traspas Muina +3
Stellar systems are often formed through the collapse of dense molecular clouds which, in turn, return copious amounts of atomic and molecular material to the interstellar medium.…
Systems Astrochemistry: A New Doctrine for Experimental Studies
Nigel J. Mason, Perry A. Hailey, Duncan V. Mifsud +1
Laboratory experiments play a key role in deciphering the chemistry of the interstellar medium (ISM) and the role that product complex organic molecules (COMs) may play in the orig…
Molecular dynamics characterisation of radiosensitising coated gold nanoparticles in aqueous environment
Alexey V. Verkhovtsev, Adam Nichols, Nigel J. Mason +1
Functionalized metal nanoparticles (NPs) have been proposed as promising radiosensitizing agents for more efficient radiotherapy treatment using photons and ion beams. Radiosensiti…
Sulfur Ice Astrochemistry: A Review of Laboratory Studies
Duncan V. Mifsud, Zuzana Kanuchova, Peter Herczku +6
Sulfur is the tenth most abundant element in the universe and is known to play a significant role in biological systems. Accordingly, in recent years there has been increased inter…
N-Graphene Synthesized in Astrochemical Ices
K K Rahul, M Ambresh, D Sahu +13
Icy mantles of benzonitrile, an aromatic with a cyanide side chain that has recently been detected in the interstellar medium, were subjected to vacuum ultraviolet photon irradiati…
Vacuum ultraviolet photoabsorption spectroscopy of space-related ices: 1 keV electron irradiation of nitrogen- and oxygen-rich ices
S. Ioppolo, Z. Kanuchová, R. L. James +5
Molecular oxygen, nitrogen, and ozone have been detected in the Solar System. They are also expected to be present in ice-grain mantles within star-forming regions. Laboratory expe…
A Systematic Study on the Absorption Features of Interstellar Ices in Presence of Impurities
Prasanta Gorai, Milan Sil, Ankan Das +12
Spectroscopic studies play a key role in the identification and analysis of interstellar ices and their structure. Some molecules have been identified within the interstellar ices…
Complex macroscale structures formed by the shock processing of amino acids and nucleobases -- Implications to the Origins of life
V S Surendra, V Jayaram, S Karthik +10
The building blocks of life, amino acids and nucleobases, are believed to have been synthesized in the extreme conditions that prevail in space starting from simple molecules conta…
Transport of secondary electrons through coatings of ion-irradiated metallic nanoparticles
Kaspar Haume, Pablo de Vera, Alexey Verkhovtsev +3
The transport of low-energy electrons through the coating of a radiosensitizing metallic nanoparticle under fast ion irradiation is analyzed theoretically and numerically. As a cas…
QDB: a new database of plasma chemistries and reactions
Jonathan Tennyson, Sara Rahimi, Christian Hill +31
One of the most challenging and recurring problems when modelling plasmas is the lack of data on key atomic and molecular reactions that drive plasma processes. Even when there are…