http://helios.eie.gr:80/helios The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. Mon, 12 Oct 2026 02:47:55 GMT 2026-10-12T02:47:55Z https://hdl.handle.net/10442/19909 Title: Mechanical and Electrical Properties of Red Blood Cells Under Oxidative Stress Using Optical Tweezers Creator: Giannakis, Theodoros; Fortis, Sotirios P; Kosma, Maria-Aspasia; Meletis, Evangelos; Kriebardis, Anastasios G; Κάνδυλα, Μαρία Tue, 18 Aug 2026 00:00:00 GMT https://hdl.handle.net/10442/19909 2026-08-18T00:00:00Z Giannakis, Theodoros Fortis, Sotirios P Kosma, Maria-Aspasia Meletis, Evangelos Kriebardis, Anastasios G Κάνδυλα, Μαρία https://hdl.handle.net/10442/19912 Title: ENVESOME Harmonized Data Dictionary and Codebook Creator: Polanska, Kinga ; Gabriel, Catherine ; Papaioannou, Nafsika ; Ramirez, Noelia; Ramis, Rebeca ; Leondiadis, Leondios ; Καρακίτσιος, Σπύρος; Σαρηγιάννης, Δημοσθένης Thu, 30 Jul 2026 00:00:00 GMT https://hdl.handle.net/10442/19912 2026-07-30T00:00:00Z Polanska, Kinga Gabriel, Catherine Papaioannou, Nafsika Ramirez, Noelia Ramis, Rebeca Leondiadis, Leondios Καρακίτσιος, Σπύρος Σαρηγιάννης, Δημοσθένης Εναρμονισμένο λεξικό δεδομένων και τυποποιημένα μεταδεδομένα για τις μεταβλητές που συλλέγονται στις ανθρώπινες μελέτες του ENVESOME. Υποστηρίζει τη συνεπή συλλογή, διαχείριση, εναρμόνιση και ενοποίηση δεδομένων μεταξύ των κοορτών. Δεν περιέχει δεδομένα σε επίπεδο συμμετέχοντα. Έργο Horizon Europe ENVESOME (101157269). The codebook provides a harmonised data dictionary and standardized metadata for variables collected across the ENVESOME human studies, supporting consistent data collection, management, harmonisation, and integration across participating cohorts. This resource is intended for use by ENVESOME consortium partners and the wider scientific community as a reference for data harmonisation, metadata standardisation, and FAIR data management in exposome and human biomonitoring research. Future versions may include additional variables, updated coding schemes, and expanded metadata as the project evolves. https://hdl.handle.net/10442/19904 Title: Electrostatic polyelectrolyte-myoglobin complexes: relaxation dynamics and viscosity under hydrated and aqueous conditions Creator: Pipertzis, Achilleas; Chroni, Angeliki; Marcinkowski, Andrzej; Trzebicka, Barbara; Pispas, Stergios; Swenson, Jan Wed, 29 Jul 2026 00:00:00 GMT https://hdl.handle.net/10442/19904 2026-07-29T00:00:00Z Pipertzis, Achilleas Chroni, Angeliki Marcinkowski, Andrzej Trzebicka, Barbara Pispas, Stergios Swenson, Jan https://hdl.handle.net/10442/19906 Title: Cooperative stability, many-body expansion, and σ-aromaticity of (LiH)n clusters (n = 1-6): A CCSD(T) study at the complete basis set limit Creator: Semidalas, Emmanouil; Drakopoulos, Filippos; Routsi, E Alexandros; Tzeli, Demeter Tue, 28 Jul 2026 00:00:00 GMT https://hdl.handle.net/10442/19906 2026-07-28T00:00:00Z Semidalas, Emmanouil Drakopoulos, Filippos Routsi, E Alexandros Tzeli, Demeter https://hdl.handle.net/10442/19887 Title: H Ελληνική Παλαιογραφία Tue, 28 Jul 2026 00:00:00 GMT https://hdl.handle.net/10442/19887 2026-07-28T00:00:00Z https://hdl.handle.net/10442/19905 Title: In Silico Docking and Spectroscopic Evaluation of a Thiocarbohydrazone Derivative: Structural Elucidation and Enzyme Inhibitory Mechanisms Creator: Karatzia, Maria; Georgiou, Nikitas; Apostolou, Ektoras Vasileios; Papamichalis, Eleftherios; Hayes, Sophia C; Mavromoustakos, Thomas; Tzeli, Demeter Fri, 17 Jul 2026 00:00:00 GMT https://hdl.handle.net/10442/19905 2026-07-17T00:00:00Z Karatzia, Maria Georgiou, Nikitas Apostolou, Ektoras Vasileios Papamichalis, Eleftherios Hayes, Sophia C Mavromoustakos, Thomas Tzeli, Demeter https://hdl.handle.net/10442/19889 Title: Ιστορίες Κατάβασης στον Κάτω Κόσμο Tue, 14 Jul 2026 00:00:00 GMT https://hdl.handle.net/10442/19889 2026-07-14T00:00:00Z https://hdl.handle.net/10442/19913 Title: ENVESOME Inventory of Existing Cohorts for Exposome and Environmental Health Research Creator: Polanska, Kinga; Gabriel, Catherine; Papaioannou, Nafsika; Ramirez, Noelia; Snoj Tratnik, Janja; Paulo Teixeira, Joao; Grimalt, Joan; Stratidakis, Antonios; Ramis, Rebeca; Horvat, Milena; Papageorgiou, Sokratis; Briz, Verónica; Kocman, David; Maggos, Thomas; Saraga, Dikaia; Reis, Ana; Kevrekidou, Alkistis; Kermenidou, Marianthi; Chatzimpaloglou, Anthoula; Arca-Lafuente, Sonia; Stamelos, Ioannis; Angelopoulou, Efthalia; Leondiadis, Leondios; Deepika; Kumar, Vikas; Karakitsios, Spyros; Sarigiannis, Dimosthenis Tue, 07 Jul 2026 00:00:00 GMT https://hdl.handle.net/10442/19913 2026-07-07T00:00:00Z Polanska, Kinga Gabriel, Catherine Papaioannou, Nafsika Ramirez, Noelia Snoj Tratnik, Janja Paulo Teixeira, Joao Grimalt, Joan Stratidakis, Antonios Ramis, Rebeca Horvat, Milena Papageorgiou, Sokratis Briz, Verónica Kocman, David Maggos, Thomas Saraga, Dikaia Reis, Ana Kevrekidou, Alkistis Kermenidou, Marianthi Chatzimpaloglou, Anthoula Arca-Lafuente, Sonia Stamelos, Ioannis Angelopoulou, Efthalia Leondiadis, Leondios Deepika Kumar, Vikas Karakitsios, Spyros Sarigiannis, Dimosthenis Ο κατάλογος συγκεντρώνει εναρμονισμένα μεταδεδομένα για τις υφιστάμενες ανθρώπινες κοορτές της κοινοπραξίας ENVESOME: χαρακτηριστικά των κοορτών, διαθέσιμα βιολογικά δείγματα, δεδομένα βιοπαρακολούθησης έκθεσης, χημικές αναλύσεις και σύνολα δεδομένων omics. Διευκολύνει την αναζήτηση και σύγκριση ερευνητικού υλικού για την εναρμόνιση, τις ολοκληρωμένες μελέτες multi-omics και την ανακάλυψη βιοδεικτών. Αποτελεί παράγωγη έκδοση του Συνόλου Δεδομένων που έχει κατατεθεί στο zenodo (doi: 10.5281/zenodo.21701916). Η παρούσα έκδοση δεν περιέχει δεδομένα σε επίπεδο συμμετέχοντα. Τα ονόματα και τα email των υπευθύνων επικοινωνίας έχουν αφαιρεθεί. Έργο Horizon Europe ENVESOME (101157269). The inventory compiles harmonised metadata describing existing human cohorts available within the consortium, including cohort characteristics, available biological samples, exposure biomonitoring data, chemical analyses, omics datasets, and associated metadata relevant to exposome and environmental health research. The inventory has been developed to facilitate the identification, comparison, and reuse of existing research resources across the ENVESOME consortium. It supports data harmonisation, cross-cohort analyses, and the planning of integrated multi-omics and human biomonitoring studies by providing standardized information on sample availability, analytical measurements, and metadata collected across participating cohorts. This resource is intended for use by ENVESOME consortium partners and the wider scientific community as a reference for identifying existing cohorts and biological resources suitable for exposome research, environmental epidemiology, and biomarker discovery. Future versions may incorporate additional cohorts, updated metadata, and newly available analytical resources as the project progresses. This dataset is a derived version of the dataset deposited in Zenodo (doi: 10.5281/zenodo.21701916). This version does not contain participant-level data, and the names and email addresses of contact points have been removed. Horizon Europe ENVESOME project (101157269). https://hdl.handle.net/10442/19860 Title: CNC-Printed Metasurface-Based Device for Potential Application in pH Sensing Creator: Viskadourakis, Z.; Orfanou, M.; Pitilakis, A.; Τσιλιπάκος Οδυσσέας; Κoudoumas, E.; Kenanakis, G. Wed, 01 Jul 2026 00:00:00 GMT https://hdl.handle.net/10442/19860 2026-07-01T00:00:00Z Viskadourakis, Z. Orfanou, M. Pitilakis, A. Τσιλιπάκος Οδυσσέας Κoudoumas, E. Kenanakis, G. In the current study, a microwave device based on a metasurface is investigated regarding its potential application as a pH sensor. The device was developed on a typical double-sided, Cu−coated FR-4 slide, utilizing the mechanical engraving method. It was electromagnetically characterized in the microwave band, i.e., 1–5 GHz. Furthermore, theoretical simulations were performed to confirm the measured electromagnetic response. Moreover, the fabricated device was tested against standard buffer solutions, such as those used for the calibration of conventional potentiometric pH meters, as well as against home-made acidic and basic aqueous solutions, with pH levels ranging from 2 up to 12. By analyzing the corresponding electromagnetic response, it is evident that the aforementioned pH device demonstrates a gradual response in varying pH levels. Furthermore, it exhibits adequate quality factor, sensitivity, and figure of merit values, indicating a measurable and application-relevant electromagnetic performance. Considering the above, it is evidently shown that the proposed metasurface−based device could be potentially used for the detection of pH levels in aqueous solutions. https://hdl.handle.net/10442/19919 Title: Alginate and Chitosan-Based Hydrogels: Effects on the Stability of Encapsulated Quercetin Under Multiple Stress Conditions Creator: Tsirigotis-Maniecka, Marta; Zoumpanioti, Maria; Pawlaczyk-Graja, Izabela Wed, 01 Jul 2026 00:00:00 GMT https://hdl.handle.net/10442/19919 2026-07-01T00:00:00Z Tsirigotis-Maniecka, Marta Zoumpanioti, Maria Pawlaczyk-Graja, Izabela