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Bezantakos, S. (author), Varnava, C. K. (author), Papaconstantinou, R. (author), Biskos, G. (author)Portable instruments that can measure the number concentration and size of airborne nanoparticles are very useful for assessing their impacts on human health and climate, mainly because they can enable personal monitoring when carried by individuals, and/or 2- or 3-dimensional mappings when employed onboard mobile platforms. Partector 2 (P2),...journal article 2024
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Doust Mohammadi, Mohsen (author), Abdullah, Hewa Y. (author), Biskos, G. (author), Bhowmick, Somnath (author)The density functional theory (DFT) framework was used to investigate the intermolecular interactions between cyanogen chloride (CNCl) pollutant gas molecule with pristine boron nitride nanotubes (BNNT), Al-doped boron nitride nanotubes (BNAlNT), and carbon boron nitride nanotubes (BC<sub>2</sub>NNT). The geometric structures of the resulting...journal article 2023
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Eleftheriou, Andreas (author), Mouzourides, Petros (author), Biskos, G. (author), Yiallouros, Panayiotis (author), Kumar, Prashant (author), Neophytou, Marina K.A. (author)Sand and dust storms (SDS) are a major disruptor in both the source areas where they occur and at distant locations. This critical review aims to address the question of whether mitigation and adaptation measures have been or can be implemented and what is the optimal scale of their implementation to negate the impacts of SDS in Eastern...review 2023
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Mohammadi, Mohsen Doust (author), Bhaskaran, Renjith (author), Abdullah, Hewa Y. (author), Abdallah, Hassan H. (author), Biskos, G. (author), Bhowmick, Somnath (author)We have investigated the potential energy curves (PECs) of the LiN heteronuclear diatomic molecule, including its ionic species LiN<sup>+</sup> and LiN<sup>−</sup>, using explicitly correlated multi-reference configuration interaction (MRCI-F12) calculations in conjunction with the correlation consistent quintuple-𝜁 basis set. The effect of core...journal article 2023
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Doust Mohammadi, Mohsen (author), Louis, Hitler (author), Chukwu, Udochukwu G. (author), Bhowmick, Somnath (author), Rasaki, Michael E. (author), Biskos, G. (author)Atmospheric pollutants pose a high risk to human health, and therefore it is necessary to capture and preferably remove them from ambient air. In this work, we investigate the intermolecular interaction between the pollutants such as CO, CO<sub>2</sub>, H<sub>2</sub>S, NH<sub>3</sub>, NO, NO<sub>2</sub>, and SO<sub>2</sub> gases with the Zn...journal article 2023
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Mohammadi, Mohsen Doust (author), Patsalidis, Nikolaos (author), Bhowmick, Somnath (author), Harmandaris, Vagelis A. (author), Biskos, G. (author)We provide a comprehensive investigation of intermolecular interactions between atmospheric gaseous pollutants, including CH<sub>4</sub>, CO, CO<sub>2</sub>, NO, NO<sub>2</sub>, SO<sub>2</sub>, as well as H<sub>2</sub>O and Ag<sub>n</sub> (n = 1-22) or Au<sub>n</sub> (n = 1-20) atomic clusters. The optimized geometries of all the systems...journal article 2023
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Papaconstantinou, Roubina (author), Demosthenous, Marios (author), Bezantakos, Spyros (author), Hadjigeorgiou, Neoclis (author), Costi, Marinos (author), Stylianou, Melina (author), Symeou, Elli (author), Savvides, Chrysanthos (author), Biskos, G. (author)Modern electrochemical gas sensors hold great potential for improving practices in air quality (AQ) monitoring as their low cost, ease of operation and compact design can enable dense observational networks and mobile measurements. Despite that, however, numerous studies have shown that the performance of these sensors depends on a number of...journal article 2023
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Gutierrez, Claudia Torero (author), Loizides, Charis (author), Hafez, Iosif (author), Biskos, G. (author), Loeschner, Katrin (author), Brostrøm, Anders (author), Roursgaard, Martin (author), Saber, Anne Thoustrup (author), Møller, Peter (author)Inhalation studies are the gold standard for assessing the toxicity of airborne materials. They require considerable time, special equipment, and large amounts of test material. Intratracheal instillation is considered a screening and hazard assessment tool as it is simple, quick, allows control of the applied dose, and requires less test...journal article 2023
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Petallidou, Klito C. (author), Ternero, Pau (author), Messing, Maria E. (author), Schmidt-Ott, A. (author), Biskos, G. (author)Nanoparticles (NPs) mixed at the atomic scale have been synthesized by atmospheric-pressure spark ablation using pairs of Pd and Hf electrodes. Gravimetric analysis of the electrodes showed that the fraction of each material in the resulting mixed NPs can be varied from ca. 15-85 at% to 85-15 at% by employing different combinations of...journal article 2023
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Gutierrez, Claudia Torero (author), Loizides, Charis (author), Hafez, Iosif (author), Brostrøm, Anders (author), Wolff, Henrik (author), Szarek, Józef (author), Berthing, Trine (author), Roursgaard, Martin (author), Biskos, G. (author)Background: Acute phase response (APR) is characterized by a change in concentration of different proteins, including C-reactive protein and serum amyloid A (SAA) that can be linked to both exposure to metal oxide nanomaterials and risk of cardiovascular diseases. In this study, we intratracheally exposed mice to ZnO, CuO, Al<sub>2</sub>O<sub...journal article 2023
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Sørli, Jorid B. (author), Jensen, Alexander C.Ø. (author), Mortensen, Alicja (author), Szarek, Józef (author), Gutierrez, Claudia A.T. (author), Hafez, Iosif (author), Biskos, G. (author), Hougaard, Karin S. (author), Vogel, Ulla (author)Tungsten is used in several applications and human exposure may occur. To assess its pulmonary toxicity, we exposed male mice to nose-only inhalation of tungsten particles at 9, 23 or 132 mg/m<sup>3</sup> (Low, Mid and High exposure) (45 min/day, 5 days/week for 2 weeks). Increased genotoxicity (assessed by comet assay) was seen in...journal article 2023
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Sørli, Jorid B. (author), Jensen, Alexander C.Ø. (author), Mortensen, Alicja (author), Szarek, Józef (author), Gutierrez, Claudia A.T. (author), Givelet, Lucas (author), Loeschner, Katrin (author), Loizides, Charis (author), Biskos, G. (author)Molybdenum disulphide (MoS<sub>2</sub>) is a constituent of many products. To protect humans, it is important to know at what air concentrations it becomes toxic. For this, we tested MoS<sub>2</sub> particles by nose-only inhalation in mice. Exposures were set to 13, 50 and 150 mg MoS<sub>2</sub>/m<sup>3</sup> (=8, 30 and 90 mg Mo/m<sup>3<...journal article 2023
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Bezantakos, S. (author), Biskos, G. (author)One of the most commonly employed instruments in the category of handheld condensation particle counters (CPCs) is the TSI 3007, which employs a simplified system for achieving a temperature difference between its saturator and its condenser in view of increasing portability, energy efficiency and autonomy. As a result, particle growth and...journal article 2022
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Nezis, Ioannis (author), Biskos, G. (author), Eleftheriadis, Konstantinos (author), Fetfatzis, Prodromos (author), Popovicheva, Olga (author), Sitnikov, Nikolay (author), Kalantzi, Olga Ioanna (author)Poor indoor air quality is an important issue for public and occupational health worldwide. Location, air-tightness of the building, ventilation rate and resident activities play an important role on the concentration of indoor pollutants and subsequently on their effects on human health. While indoor air pollution in working environments has...journal article 2022
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Albanes, E. (author), Bezantakos, S. (author), Costi, M. (author), Biskos, G. (author)A sharp-cut cyclone with an aerodynamic cut-off diameter of 1 μm, when operated at a flow rate of 1 L min<sup>−1</sup>, was built by 3D-printing and tested against a metallic (aluminum) counterpart having the same design and dimensions. The penetration efficiency of both cyclones was experimentally determined using quasi-monodisperse aerosol...journal article 2022
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Bhowmick, Somnath (author), Maisser, Anne (author), Suleimanov, Yury V. (author), Schmidt-Ott, A. (author), Biskos, G. (author)Silver oxide cluster cations (AgnOm+) can readily be produced by a number of methods including atmospheric-pressure spark ablation of pure silver electrodes when trace amounts of oxygen are present in the carrier gas. Here we determine the equilibrium geometries of AgnOm+ clusters (n = 1-4; m = 1-5) using accurate coupled cluster with singles...journal article 2022
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Nezis, Ioannis (author), Biskos, G. (author), Eleftheriadis, Konstantinos (author), Fetfatzis, Prodromos (author), Popovicheva, Olga (author), Sitnikov, Nikolay (author), Kalantzi, Olga Ioanna (author)The authors would like to replace <14. W03.31.000 > with <N075-15-2021-574> in the acknowledgement. We apologise for any inconvenience caused.journal article 2022
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Doust Mohammadi, Mohsen (author), Abdullah, Hewa Y. (author), Bhowmick, Somnath (author), Biskos, G. (author)The ability of carbon- and silicon-based nanotubes, including pure carbon, silicon carbide, and Ge-doped silicon carbide nanotubes (CNT, SiCNT, SiCGeNT, respectively), for sensing highly toxic dichlorosilane (H2SiCl2) are investigated using quantum chemistry calculations. The intermolecular interactions between the sensing material and the gas...journal article 2022
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Isaac, N. A. (author), Pikaar, I. (author), Biskos, G. (author)To meet requirements in air quality monitoring, sensors are required that can measure the concentration of gaseous pollutants at concentrations down to the ppb and ppt levels, while at the same time they exhibiting high sensitivity, selectivity, and short response/recovery times. Among the different sensor types, those employing metal oxide...review 2022
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Mohammadi, Mohsen Doust (author), Abdullah, Hewa Y. (author), Biskos, G. (author), Bhowmick, Somnath (author)We have investigated the possibility of utilizing various single-walled pristine and doped carbon nanotubes as adsorbents for the 1-chloro-1,2,2,2-tetrafluoroethane (HCFC-124) gaseous molecule. Three candidates, including pristine carbon nanotube (CNT), silicon carbide nanotube (SiCNT) and germanium-doped SiCNT (SiCGeNT) are identified and...journal article 2021