Επιλογή Σελίδας

Γκιώκας Δημοσθένης

Μαρ 23, 2020


Καθηγητής
Χ2-305β
Ανόργανης και Αναλυτικής Χημείας
ΤΜΗΜΑ ΧΗΜΕΙΑΣ
Πανεπιστήμιο Ιωαννίνων
ΙΩΑΝΝΙΝΑ ΤΚ 45110
 e-mail: dgiokas@uoi.gr
 Τηλέφωνο: +30-2651008402, +30-2651008400
 Fax: +30-2651008781




ΑΝΑΛΥΤΙΚΗ ΧΗΜΕΙΑ

1. Μοριακή Φασματοσκοπία
2. Ατομική Φασματοσκοπία
3. Υγρή Χρωματογραφία
4. Χημειοφωταύγεια και Αναλυτικές Εφαρμογές.
5. Τεχνικές Ανάλυσης σε Ροή
6. Μέθοδοι Εκχύλισης / Μικροεκχύλισης και Διαχωρισμού
7. Χημειομετρία και Αναλυτικές Εφαρμογές
8. Νανοτεχνολογία και εφαρμογές της στην Αναλυτική Χημεία
9. Μικρο-ρευστονική και Αναλυτικές Εφαρμογές
10. Περιβαλλοντική αποκατάσταση




ΕΠΑΓΓΕΛΜΑΤΙΚΗ ΕΞΕΛΙΞΗ

  • Απρίλιος 2024-σήμερα: Καθηγητής, Τομέας Ανόργανης και Αναλυτικής Χημείας, Τμήμα Χημείας, Πανεπιστήμιο Ιωαννίνων (Γνωστικό αντικείμενο: Αναλυτική Χημεία)
  • 2020-2024: Αναπληρωτής Καθηγητής, Τομέας Ανόργανης και Αναλυτικής Χημείας, Τμήμα Χημείας, Πανεπιστήμιο Ιωαννίνων (Γνωστικό αντικείμενο: Αναλυτική Χημεία)
  • 2015-2020:  Επίκουρος Καθηγητής, Τομέας Ανόργανης και Αναλυτικής Χημείας, Τμήμα Χημείας, Πανεπιστήμιο Ιωαννίνων (Γνωστικό αντικείμενο: Αναλυτική Χημεία)
  • Μάιος 2013-Μάρτιος 2015:  Λέκτορας, Τομέας Ανόργανης και Αναλυτικής Χημείας, Τμήμα Χημείας, Πανεπιστήμιο Ιωαννίνων (Γνωστικό αντικείμενο: Αναλυτική Χημεία)
  • 2007-2013:  Μονάδα Χρωματογραφίας, Τμήμα Χημείας, Πανεπιστήμιο Ιωαννίνων
  • 2008:  Διδάσκων ΠΔ 407/80, Τμήμα Διαχείρισης Πολιτισμικού Περιβάλλοντος και Νέων Τεχνολογιών, Πανεπιστήμιο Ιωαννίνων
  • 2005-2006:  Εργαστηριακός Συνεργάτης, Τμήμα Φυτικής Παραγωγής, Σχολή Τεχνολογίας Γεωπονίας, ΤΕΙ Ηπείρου
  • 2003-2007:  Μεταδιδακτορικός ερευνητής, Εργαστήριο Αναλυτικής Χημείας,  Τμήμα Χημείας, Πανεπιστήμιο Ιωαννίνων
  • 1999-2003:  Συνεργάτης με αναθέσεις έργου στα πλαίσια ερευνητικών προγραμμάτων, Εργαστήριο Αναλυτικής Χημείας, Τμήμα Χημείας, Πανεπιστήμιο Ιωαννίνων

 

ΥΠΟΤΡΟΦΙΕΣ

  • Yπότροφος στα πλαίσια του προγράμματος INTERREG II, Ελλάδα-Ιταλία, Μέτρο 5-2. (Τμήμα Βιολογίας, Πανεπιστήμιο Lecce, Ιταλία)
  • Πυθαγόρας: Ενίσχυση Ερευνητικών Ομάδων στα Πανεπιστήμια, Υπότροφος Ερευνητής «Μελέτη προσδιορισμού των στοιχείων της ομάδας του Λευκόχρυσου ως υπολείμματα των καταλυτικών μετατροπέων στο αστικό περιβάλλον» (2004-2006)

 

ΞΕΝΕΣ ΓΛΩΣΣΕΣ

  • Άριστη γνώση της Αγγλικής γλώσσας (Michigan Certificate of Proficiency in English και Certificate in Proficient Communication – EDEXCEL International London Examinations).

 

ΚΡΙΤΗΣ ΣΕ ΕΠΙΣΤΗΜΟΝΙΚΑ ΠΕΡΙΟΔΙΚΑ / ΜΕΛΟΣ ΤΟΥ EDITORIAL BOARD

  • ΚΡΙΤΗΣ  σε >40 διεθνή επιστημονικά περιοδικά με σύστημα ανωνύμων κριτών.
  • Associate Editor Microchimica Acta (https://link.springer.com/journal/604).
  • Section Editor-In Chief  “Environmental Separations” – Separations (https://www.mdpi.com/journal/separations/sections/environmental_separations)
  • ΜΕΛΟΣ ΤΟΥ EDITORIAL BOARD των περιοδικών Journal of Chemistry, International Journal of Analytical Chemistry και International Journal of Environmental Monitoring and Analysis.

 

ΔΗΜΟΣΙΕΥΣΕΙΣ

  1. D.L. Giokas, P.A. Sikos, M.I. Karayannis. “Environmental Education and Research in Greece” Environmental Science and Pollution Research 8(4), 2001, 289-294
  2. D.L.Giokas, E.K. Paleologos, S.M. Tzouwara-Karayanni and M.I. Karayannis “Single-Sample Cloud Point Determination of Iron, Cobalt And Nickel by Flow Injection Analysis Flame Atomic Absorption Spectrometry – Application to Real Samples and Certified Reference Materials” Journal of Analytical Atomic Spectrometry 16(5), 2001, 521-526
  3. E.K.Paleologos, D.L.Giokas, S.M.Tzouwara-Karayanni, M.I.Karayannis “Spectrofluorometric Determination of Vanadium Based on the Formation of a Ternary Complex between Vanadium, Peroxides and 2-a-Pyridylthioquinaldinamide. Application to the Determination of Hydrogen Peroxide and Peroxy Acids” Analytical Chemistry 74(1), 2002, 100-106
  4. D.L.Giokas, E.K.Paleologos, P.G.Veltsistas, M.I.Karayannis “Micelle Mediated Extraction of Magnesium with Trizma-Chloranilate and Determination by Flame Atomic Absorption Spectrometry” Talanta 56(3), 2002, 415-424
  5. D.L.Giokas, E.K.Paleologos, M.I.Prodromidis, M.I.Karayannis “Development of 1-(2-Pyridylazo)-2-Naphthol-Modified Polymeric Membranes for the Effective Batch Preconcentration and Determination of Zinc Traces with Flame Atomic Absorption Spectrometry” Talanta 56(3), 2002, 491-498.
  6. E.K.Paleologos, D.L.Giokas, S.M. Tzouwara-Karayanni M.I. Karayannis “Micelle Mediated Methodology for the Determination of Free and Bound iron in Wines by Flame Atomic Absorption Spectrometry”Analytica Chimica Acta 458(1), 2002, 241-248
  7. D.L. Giokas, E.K. Paleologos, M.I. Karayannis “Speciation of Fe(II) and Fe(III) based on the modified ferrozine method after cloud point extraction by FIA- spectrophotometry and Flame AAS” Analytical and Bioanalytical Chemistry 373(4-5), 2002, 237-243
  8. D.L. Giokas, E.K. Paleologos, P.G. Veltsistas, M.I. Karayannis” Micellar Enhanced Analytical Application of Bismuthiol-II for the Spectrophotometric Determination of Trace Copper in Nutritional Matrices” Microchimica Acta 140(1-2), 2002, 81-86
  9. D.L. Giokas, Y.Kim, P.A. Paraskevas, E.K. Paleologos, T.D. Lekkas “A simple empirical model for activated sludge thickening in secondary clarifiers” Water Research 36(13), 2002, 3245-3252
  10. D.L.Giokas, A.D.Vlessidis, M.O.Angelidis, G.Tsimarakis, M.I.Karayannis “Systematic analysis of the operational response of activated sludge process to variable wastewater flows. A case study” Clean Technologies and Environmental Policy 4, 2002, 183-190
  11. E.K. Paleologos, M.I. Prodromidis, D.L. Giokas, A.Ch. Pappas, M.I. Karayannis “Highly Selective Photometric Determination of Trace Cobalt and Development of a Reagentless Fiber-Optic Sensor”Analytica Chimica Acta 467(1-2), 2002, 205-215
  12. D.A. Lambropoulou, D.L. Giokas, V.A. Sakkas, T.A. Albanis, M.I. Karayannis “Gas Chromatographic Determination of 2-hydroxy-4methoxybenzophenone and Octyl Dimethyl-p-aminobenzoic acid Sunscreen Agents in Swimming Pool and Bathing Waters by Solid-Phase Microextraction” Journal of Chromatography A 967(2), 2002, 243-253
  13. P.A. Paraskevas, D.L. Giokas, T.D. Lekkas “Wastewater management in coastal urban areas. The case of Greece” Water Science and Technology 46(8), 2002, 177-186 .
  14. D.L. Giokas, J. Antelo, E.K. Paleologos, F. Arce, M.I. Karayannis “Copper fractionation with dissolved organic matter in natural waters and wastewaters – a mixed micelle mediated methodology (cloud point extraction) employing Flame Atomic Absorption Spectrometry” Journal of Environmental Monitoring 4(4), 2002, 505-510
  15. D. L. Giokas, E.K. Paleologos, M.I. Karayannis “Micelle Mediated Extraction of Heavy Metals from Environmental Samples. An Environmental-Green Chemistry Laboratory Experiment” Journal of Chemical Education 80(1), 2003, 61-64
  16. C.Z. Katsaounos, D.L.Giokas. A.G. Vlessidis, E.K. Paleologos, M.I.Karayannis “The Use of Surfactant-Based Separation Techniques for Monitoring of Orthophosphate in Natural Waters and Wastewater” The Science of the Total Environment 305(1-3), 2003, 157-167.
  17. D.L. Giokas, E.K. Paleologos, M. I. Karayannis “Monitoring of ortho-phosphates in wastewater based on the oxidising effect of molybdenum on diphenilamine in a formic acid solution environment” International Journal of Environmental Analytical Chemistry 83(2), 2003, 167-175
  18. Ch. Z. Katsaounos, E.K. Paleologos, D.L. Giokas, M.I. Karayannis “The 4-Aminoantipyrene Method Revisited. Determination of Trace Phenols by Micellar Assisted Preconcentration” International Journal of Environmental Analytical Chemistry 836(6), 2003, 507-514
  19. D.L. Giokas, G.T. Daigger, M. von Sperling, Y. Kim, P.A. Paraskevas “Comparison and evaluation of empirical zone settling velocity parameters based on sludge volume index using a unified settling characteristics database” Water Research 37(16), 2003, 3821-3836
  20. V.A. Sakkas, D.L. Giokas, D.A. Lambropoulou and T.A. Albanis “Aqueous photolysis of the sunscreen agent octyl-dimethyl-p-amino-benzoic acid (ODPABA). Formation of disinfection byproducts in chlorinated swimming pool water” Journal of Chromatography A 1016(2), 2003, 211-222.
  21. Y. Kim, D. L. Giokas, Paul-Gene Chung, Dong-Ryul Lee “Design of the water hyacinth ponds for removing algal particles from waste stabilization ponds” Water Science and Technology 48(11-12), 2004, 115-123
  22. D.L. Giokas, V.A. Sakkas, T.A. Albanis “Determination of Residues of UV-Filters in Natural Waters by Solid Phase Extraction coupled to coupled to liquid chromatography–photodiode array detection (HPLC/UV-DAD) and gas chromatography–mass spectrometry (GC/MS)” Journal of Chromatography A 1026(1-2), 2004, 289-293
  23. D.L.Giokas, L.P. Eksperiandova,  A.B.Blank, M.I.Karayannis “Comparison and evaluation of cloud point extraction and low-temperature directed crystallization as preconcentration tools for the determination of trace elements in environmental samples” Analytica Chimica Acta 505(1), 2004, 51-58
  24. D.L. Giokas*, G.Z. Tsogas, A.G. Vlessidis, M. I. Karayannis “Metal Ion Determination by Flame Atomic Absorption Spectrometry Through Reagentless Coacervate Phase Separation-Extraction into Lamellar Vesicles” Analytical Chemistry 76(5), 2004, 1302-1309
  25. Y. Kim, D.L.Giokas, J. Park, T.A. Albanis “Performance Evaluation and Mathematical Modeling of Nitrogen Reduction in Waste Stabilization Ponds in Conjunction with Other Treatment Systems” Journal of Environmental Science and Health-Part A: Toxic/Hazardous Substances and Environmental Engineering 39(3), 2004, 741-758
  26. Y. Kim, D.-R. Lee and D. Giokas “Agricultural reuse of the secondary effluent polished by an algal pond system coupled with constructed wetland” Water Science and Technology 50(6), 2004, 79-86
  27. G.Z. Tsogas, D.L. Giokas*, A.G. Vlessidis, N.P. Evmiridis “A Single-Reagent Method for the Speciation of Chromium in Natural Waters by Flame Atomic Absorption Spectrometry Based on Vesicular Liquid Coacervate Extraction” Spectrochimica Acta Part B – Atomic Spectrometry 59(7), 2004, 957-965
  28. G.Z. Tsogas, D.L. Giokas*, E.K. Paleologos, A.G. Vlessidis, N.P. Evmiridis “Single – step coacervate – mediated preconcentration of metals and metal chelates in supramolecular vesicular surfactant assemblies and determination by flame atomic absorption spectrometry” Analytica Chimica Acta 537(1-2), 2005, 239-248
  29. D.L. Giokas, E.K. Paleologos, M.I. Karayannis “Optimization of a multi-elemental preconcentration procedure for the monitoring survey of dissolved metal species in natural waters” Analytica Chimica Acta 537, Issue 1-2, 2005, Pages 249-257
  30. E.K. Paleologos, D.L. Giokas, M.I. Karayannis “Micelle mediated separation and cloud point extraction” TRAC-Trends in Analytical Chemistry 24(5), 2005, 426-436 REVIEW ARTICLE
  31. D.L. Giokas*, V.A. Sakkas, T.A. Albanis, D.A. Lampropoulou “Determination of UV-Filter Residues in Bathing Waters by Liquid Chromatography UV-Diode Array and Gas Chromatography-Mass Spectrometry after Micelle Mediated Extraction – Solvent Back Extraction” Journal of Chromatography A 1077(1), 2005, 19-27
  32. N.A. Parisis, D.L. Giokas*, A.G. Vlessidis, N.P. Evmiridis, “Concentration of Organic Compounds in Water with Solid Phase Dispersion based on Advesicle Modified Silica prior to Liquid Chromatography” Journal of Chromatography A 1097(1-2), 2005, 17-24
  33. Y. Kim, D.L. Giokas*, J-W Lee, P.A. Paraskevas “Potential of natural treatment systems for the reclamation of domestic wastewater in irrigated agriculture” Desalination 189(1-3), 2006, 229-242
  34. G.Z. Tsogas, D.L. Giokas*, A.G. Vlessidis, N.P. Evmiridis “Sensitivity enhancement of liquid chromatographic-direct chemiluminescence detection by on-line post-column solvent mediated pre-oxidative chemiluminescence” Journal of Chromatography A 1107(1-2), 2006, 208-215
  35. G.Z. Tsogas, D.L. Giokas*, A.G. Vlessidis, Nicholaos P. Evmiridis “The effects of solvent preoxidation on inhibited chemiluminescence of pyrogallol oxidation in flow injection analysis and liquid chromatography” Analytica Chimica Acta 565(1), 2006, 56-62
  36. G.Z. Tsogas, D.L. Giokas, P.G. Nikolakopoulos, A.G. Vlessidis, N.P. Evmiridis “Determination of the pesticide carbaryl and its photodegradation kinetics in natural waters by flow injection-direct chemiluminescence detection” Analytica Chimica Acta 573-574, 2006, 354-359
  37. C.Z. Katsaounos, D.L. Giokas*, A.G. Vlessidis, M.I. Karayannis “Identification of longitudinal and temporal patterns of phosphorus fractionation in river sediments by non-parametric statistics and pattern recognition techniques” Desalination 213(1-3), 2007, 311-333
  38. D.L. Giokas, A.G. Vlessidis “Application of a novel chemometric approach to the determination of aqueous photolysis rates of organic compounds in natural waters” Talanta 71(1), 2007, 288-295
  39. C.Z. Katsaounos, D.L. Giokas*, I.D. Leonardos, M.I. Karayannis “Speciation of phosphorus fractionation in river sediments by explanatory data analysis” Water Research 41(2), 2007, 406-418 .
  40. A.G. Vlessidis, M. Kotti, D.L. Giokas, N.P. Evmiridis “Fast screening of municipal wastewater components by reversed phase chromatography coupled to UV-diode array detection” Water and Environment Journal 21 (2), 2007, 157-164
  41. D.L. Giokas, A.G. Vlessidis, N.P. Evmiridis “On-line selective detection of antioxidants free-radical scavenging activity based on Co(II)/EDTA-induced luminol chemiluminescence by flow injection analysis”  Analytica Chimica Acta 589(1), 2007, 59-65
  42. D.L. Giokas*, A. Salvador, A. Chisvert “UV filters: from sunscreens to human body and the environment” TrAC Trends in Analytical Chemistry 26(5), 2007, 360-374 REVIEW ARTICLE.
  43. I.A. Tsoulfanidis, G.Z. Tsogas, D.L. Giokas, A.G. Vlessidis “Design of a field flow system for the on-line spectrophotometric determination of phosphate, nitrite and nitrate in natural water and wastewater” Microchimica Acta 160(4), 2008, 461-469
  44. A.I. Stamou, D.L. Giokas, Y. Kim, P.A. Paraskevas “Validation and application of a simple model for circular secondary settling tanks” Global Nest Journal 10(1), 2008, 62-72
  45. G.Z. Tsogas, D.L. Giokas*, A.G. Vlessidis, N.P. Evmiridis “On the re-assessment of the optimum conditions for the determination of platinum, palladium and rhodium in environmental samples by electrothermal atomic absorption spectrometry and microwave digestion” Talanta 76(3), 2008, 635-641
  46. N.I. Kapakoglou, D.L. Giokas*, G.Z. Tsogas, A.G. Vlessidis “Coacervation of surface-functionalized polymerized vesicles derived from ammonium bromide surfactants. Application to the selective speciation of chromium in environmental samples” Analytical Chemistry 80(24), 2008, 9787-9796
  47. G.Z. Tsogas, D.L. Giokas, A.G. Vlessidis “Graphite furnace and hydride generation atomic absorption spectrometric determination of cadmium, lead, and tin traces in natural surface waters: Study of preconcentration technique performance” Journal of Hazardous Materials 163(2-3), 2009, 988–994
  48. G.Z. Tsogas, D.L.Giokas*, A.G. Vlessidis, M. Aloupi and M.O. Angelidis “Survey of the distribution and time-dependent increase of platinum-group element accumulation along urban roads in Ioannina (NW Greece)” Water Air and Soil Pollution 201(1-4), 2009, 265-281
  49. E.G. Zisimopoulos, G.Z. Tsogas, D.L. Giokas, N.I. Kapakoglou, A.G. Vlessidis “Indirect chemiluminescence-based detection of mefenamic acid in pharmaceutical formulations by flow injection analysis and effect of gold nanocatalysts” Talanta 79(3), 2009, 893-899
  50. D.L. Giokas, G.Z. Tsogas, A.G. Vlessidis “On-line derivatization coupled to flow injection permanganate chemiluminescence detection of total carbonyl compounds in natural waters and drinking water” Analytica Chimica Acta 651(2), 2009, 188-195
  51. N.I. Kapakoglou, D.L. Giokas*, G.Z. Tsogas, A.K. Ladavos, A.G. Vlessidis  “Development of a chromium speciation probe based on morphology-dependent aggregation of polymerized vesicle-functionalized gold nanoparticles” Analyst 134(12), 2009, 2475-2483
  52. G.Z. Tsogas, D.L. Giokas, A.G. Vlessidis “A fast assay of water hardness ions based on alkaline earth metal induced coacervation (HALC)”  Talanta  80(5), 2010, 2049–2056
  53. N.I. Kapakoglou, D.L. Giokas, G.Z. Tsogas, A.G. Vlessidis “Analytical application of surface-affinity polymerized vesicular membranes to trace metal analysis by electrothermal atomic absorption spectrometry” Microchimica Acta  169(1), 2010, 99-107
  54. G. Z. Tsogas, D. L Giokas, N. I. Kapakoglou, D. E. Efstathiou, A. G. Vlessidis, G. N. Dimitrellos, T. D. Georgiadis, A. V. Charchanti “Land-based classification of herb’s origin based on supervised and unsupervised pattern recognition of plant and soil chemical profiling” Analytical Letters 43(13), 2010, 2031-2048
  55. N.P. Koutsoulis, D.L. Giokas, A.G. Vlessidis, G.Z. Tsogas “Alkaline earth metal effect on the size and color transition of citrate-capped gold nanoparticles and analytical implications in periodate-luminol chemiluminescence” Analytica Chimica Acta 669(1-2), 2010, 45–52
  56. C.M. Tsoumanis, D.L. Giokas, At.G. Vlessidis “Monitoring and classification of wastewater quality using supervised pattern recognition techniques and deterministic resolution of molecular absorption spectra based on multiwavelength UV spectra deconvolution” Talanta 82(2), 2010, 575–581
  57. D.L. Giokas, A.G. Vlessidis, G.Z. Tsogas, N.P. Evmiridis “Nanoparticle-assisted chemiluminescence and its applications in Analytical Chemistry” TRAC-Trends in Analytical Chemistry 29(10), 2010, 1113-1126 REVIEW ARTICLE.
  58. D.L. Giokas*, N.C. Thanasoulias, A.G. Vlessidis “Multivariate chemometric discrimination of cigarette tobacco blends based on the uv-vis spectrum of their hydrophilic extracts” Journal of Hazardous Materials 185(1), 2011, 86-92
  59. D.L. Giokas*, A.G. Vlessidis “Synthetic membranes (vesicles) in inorganic ions analysis. A review” Analytica Chimica Acta 683(2), 2011, 156-169 INVITED REVIEW.
  60. A.A. Akrivi, G.Z Tsogas, D.L. Giokas, A.G. Vlessidis “Analytical determination and bio-monitoring of platinum group elements in roadside grass using microwave assisted digestion and electrothermal atomic absorption spectrometry” Analytical Letters 45(5-6), 2012, 526-538
  61. D.L. Giokas*, Q. Zhu, Q. Pan, A. Chisvert “Cloud point-dispersive μ-solid phase extraction of hydrophobic organic compounds onto highly hydrophobic core-shell Fe2O3@C magnetic nanoparticles” Journal of Chromatography A 1251, 2012, 33-39 .
  62. K.M. Giannoulis, G.Z. Tsogas, D.L. Giokas*, A.G. Vlessidis “Dispersive micro-solid phase extraction of ortho-phosphate ions onto magnetite nanoparticles and determination as its molybdenum blue complex. Talanta 99, 2012, 62–68
  63. A. Chisvert, Z. León-González, I. Tarazona, A. Salvador,  D. Giokas “An overview of the analytical methods for the determination of organic ultraviolet filters in biological fluids and tissues” Analytica Chimica Acta 752, 2012, 11–29
  64. D.L. Giokas*, D.C. Christodouleas, I. Vlachou, A.G. Vlessidis, A.C. Calokerinos “Development of a generic assay for the determination of total trihydroxybenzoate derivatives based on gold-luminol chemiluminescence” Analytica Chimica Acta 764, 2013, 70–77
  65.  K.M. Giannoulis, D.L. Giokas, Q. Zhu, G.Z. Tsogas, A.G. Vlessidis, Q.Pan “Surfactant-enhanced liquid-liquid microextraction coupled to micro-solid phase extraction onto highly hydrophobic magnetic nanoparticles” Microchimica Acta 180, 2013, 775-782
  66. E.K. Pefkianakis, D. Christodouleas, D.L. Giokas, K. Papadopoulos, G.C. Vougioukalakis “A family of RuII photosensitizers with high singlet oxygen quantum yield: Synthesis, characterization, and evaluation” European Journal of Inorganic Chemistry 26, 2013, 4628-4635.
  67.  K.M. Giannoulis, D.L. Giokas*, G.Z. Tsogas, A.G. Vlessidis “Ligand-free gold nanoparticles as colorimetric probes for the non- destructive determination of total dithiocarbamate pesticides after solid phase extraction” Talanta 119, 2014, 276–283 .
  68. F.A. Kappi, G.Z. Tsogas, D.L. Giokas*, D.C. Christodouleas, A.G. Vlessidis “Colorimetric and visual read-out determination of cyanuric acid exploiting the interaction between melamine and silver nanoparticles” Microchimica Acta, 181, 2014, 623-629
  69. V.A. Gatselou, D.L. Giokas*, A.G. Vlessidis “Determination of dissolved organic matter based on UV-light induced reduction of ionic silver to metallic nanoparticles by humic and fulvic acids” Analytica Chimica Acta 812, 2014, 121–128
  70. G.Z. Tsogas, D.L. Giokas*, A.G. Vlessidis “Ultratrace determination of silver, gold, and iron oxide nanoparticles by micelle mediated preconcentration/selective back- extraction coupled with flow injection chemiluminescence detection” Analytical Chemistry 86, 2014, 3484-3492.
  71. G.Z. Tsogas, D.L. Giokas*, A.G. Vlessidis “Derivatization coupled to chemiluminescence detection” Current Analytical Chemistry 10(6), 2014, 305-319 INVITED REVIEW ARTICLE.
  72. D.L. Giokas*, G.Z. Tsogas, A.G. Vlessidis “ Programming fluid transport in paper-based microfluidic devices using razor-crafted open channels”, Analytical Chemistry, 86, 2014, 6202–6207
  73. J.L. Benedé, A. Chisvert, D.L. Giokas*, A. Salvador “Development of stir bar sorptive-dispersive microextraction mediated by magnetic nanoparticles and its analytical application to the determination of hydrophobic organic compounds in aqueous media” Journal of Chromatography A 1362, 2014, 25-33
  74. D.C. Christodouleas, D.L. Giokas, V. Garyfali, K. Papadopoulos, A.C. Calokerinos “An automatic FIA-CL method for the determination of antioxidant activity of edible oils based on peroxyoxalate chemiluminescence” Microchemical Journal 118 (2015) 73-79
  75. T.G. Choleva, F.A. Kappi, D.L. Giokas*, A.G. Vlessidis “Paper-based assay of antioxidant activity using analyte-mediated on-paper nucleation of gold nanoparticles as colorimetric probes» Analytica Chimica Acta 860, 2015, 61–69
  76. V.A. Gatselou, D.L. Giokas, A.G. Vlessidis, M.I. Prodromidis “Rhodium nanoparticle-modified screen-printed graphite electrodes for the determination of hydrogen peroxide in tea extracts in the presence of oxygen” Talanta 134, 2015, 482-487
  77. J.L. Benedé, D. L. Giokas*, A. Chisvert, A. Salvador “In-situ suspended aggregate microextraction: A sample preparation approach for the enrichment of organic compounds in aqueous solutions” Journal of Chromatography A 1408, 2016, 63-71
  78. J.L. Benedé, A. Chisvert, D.L. Giokas, A. Salvador “Determination of ultraviolet filters in bathing waters by stir bar sorptive–dispersive microextraction coupled to thermal desorption–gas chromatography–mass spectrometry” Talanta 147, 2016 246-252
  79. T.G. Choleva, F.A. Kappi, G.Z. Tsogas, A.G. Vlessidis, D.L. Giokas*, “In-situ suspended aggregate microextraction of gold nanoparticles from water samples and determination by electrothermal atomic absorption spectrometry” Talanta 151, 2016, 91-99
  80. G.Z.,Tsogas, D.L. Giokas, A.G Vlessidis, A.Badeka, “Flow through fluorescence detection of phosphate in human saliva based on sensitized turn-on photoluminescence of CdS quantum dots” Analytical Letters, 49, 2016, 618-626
  81. J.L.Benedé, A. Chisvert, D.L. Giokas, A. Salvador, “Stir bar sorptive-dispersive microextraction mediated by magnetic nanoparticles-nylon 6 composite for the extraction of hydrophilic organic compounds in aqueous media” Analytica Chimica Acta, 926, 2016, 63-71.
  82. V. Gatselou, D.C. Christodouleas, A. Kouloumpis, D. Gournis, D.L. Giokas*, “Determination of phenolic compounds using spectral and color transitions of rhodium nanoparticles” Analytica Chimica Acta, 932, 2016, 80-87
  83. F.A. Kappi, G.Z. Tsogas, D.C. Christodouleas, D.L. Giokas*, “Calibrant-loaded paper-based analytical devices for standard addition quantitative assays” Sensors and Actuators B: Chemical, 253, 2017, 860-867
  84. S.P. Mandyla, G.Z. Tsogas, A.G. Vlessidis, D.L. Giokas*, “Determination of gold nanoparticles in environmental water samples by second-order optical scattering using dithiotreitol-functionalized CdS quantum dots after cloud point extraction” Journal of Hazardous Materials, 323, 2017, 67-74
  85. F.A. Kappi, G.A. Papadopoulos, G.Z., Tsogas, D.L. Giokas*, “Low-cost colorimetric assay of biothiols based on the photochemical reduction of silver halides and consumer electronic imaging devices” Talanta, 172, 2017, 15-22.
  86. A. Voulgari, V.A. Gatselou, F.A. Kappi, T.G. Choleva, G.Z. Tsogas, A.G. Vlessidis, D.L. Giokas*, “Solid ink-printed filter paper as a green adsorbent material for the solid-phase extraction of UV filters from water samples” International Journal of Environmental Analytical Chemistry, 9, 2017, 1163-1177 .
  87. T.G. Choleva, V.A. Gatselou, G.Z. Tsogas, D.L. Giokas*, “Intrinsic peroxidase-like activity of rhodium nanoparticles, and their application to the colorimetric determination of hydrogen peroxide and glucose” Microchimica Acta, 185, 2017,  (1), art. no. 22.
  88. C.T. Kokkinos, D.L. Giokas, A.S. Economou, P.S. Petrou, S.E. Kakabakos, “Paper-Based Microfluidic Device with Integrated Sputtered Electrodes for Stripping Voltammetric Determination of DNA via Quantum Dot Labeling” Analytical Chemistry, 90, 2018, 1092-1097.
  89. G.Z. Tsogas, F.A. Kappi, A.G. Vlessidis, D.L. Giokas*, “Recent Advances in Nanomaterial Probes for Optical Biothiol Sensing: A Review” Analytical Letters, 51, 2018, 443-468
  90. C.T. Kokkinos, A.S. Economou, D.L. Giokas, “Paper-based device with a sputtered tin-film electrode for the voltammetric determination of Cd(II) and Zn(II)” Sensors and Actuators B: Chemical, 260, 2018, 223-226
  91. J.l. Benedé, A. Chisvert, C. Moyano, D.L. Giokas, A. Salvador, “Expanding the application of stir bar sorptive-dispersive microextraction approach to solid matrices: Determination of ultraviolet filters in coastal sand samples”  Journal of Chromatography A, 1564, 2018, 25-33
  92. F.A. Kappi, G.Z. Tsogas, A-M. Routsi, D.C. Christodouleas, D.L. Giokas*, “Paper-based devices for biothiols sensing using the photochemical reduction of silver halides” Analytica Chimica Acta, 1036, 2018, 89-96
  93. A. Kostara, G.Z. Tsogas, A.G. Vlessidis, D.L. Giokas*, “Generic Assay of Sulfur-Containing Compounds Based on Kinetics Inhibition of Gold Nanoparticle Photochemical Growth” ACS Omega, 3, 2018, 16831-16838
  94. T.G. Choleva, G.Z. Tsogas, D.L. Giokas*, “Determination of silver nanoparticles by atomic absorption spectrometry after dispersive suspended microextraction followed by oxidative dissolution back-extraction” Talanta, 196, 2019, 255-261
  95. G. Giannoulas, G.Z. Tsogas, D.L. Giokas*, “Single-point calibration and standard addition assays on calibrant-loaded paper-based analytical devices” Talanta, 201, 2019, 149-155
  96. A. Votani, A. Chisvert, D.L. Giokas*, “On-line extraction coupled to liquid chromatographic analysis of hydrophobic organic compounds from complex solid samples—Application to the analysis of UV filters in soils and sediments” Journal of Chromatography A, 1610, 2020, 460561
  97. T.G. Choleva, D.L. Giokas*, “Application of dissolvable Mg/Al layered double hydroxides as an adsorbent for the dispersive solid phase extraction of gold nanoparticles prior to their determination by atomic absorption spectrometry” Analytical Methods, 12, 2020, 368-375.
  98. T.G. Choleva, G.Z. Tsogas, A.G. Vlessidis, D.L. Giokas*, Development of a sequential extraction and speciation procedure for assessing the mobility and fractionation of metal nanoparticles in soils, Environmental Pollution 263,2020, 114407.
  99. S. Tzoka, M. Tarara, D.L. Giokas*, Photography-based photometry: High throughput UV photometric analysis without scientific equipment based on contact printing photography and common imaging devices, Sensors and Actuators, B: Chemical, 328, 2021, art. no. 129018.
  100. E.Akrivi, F. Kappi, V. Gouma, A.G. Vlessidis, D.L. Giokas*, N.Kourkoumelis, “Biothiol modulated growth and aggregation of gold nanoparticles and their determination in biological fluids using digital photometry” Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 249, 2021, 119337.
  101. E.A. Akrivi, A.G. Vlessidis, D.L. Giokas, N. Kourkoumelis, “Gold-Modified Micellar Composites as Colorimetric Probes for the Determination of Low Molecular Weight Thiols in Biological Fluids Using Consumer Electronic Devices” Applied Sciences, 11, 2021, 2705.
  102. A.D. Pournara, S. Rapti, A. Valmas, I. Margiolaki, E. Andreou, G.S. Armatas, A.C. Tsipis, J.C. Plakatouras, D.L. Giokas, M.J. Manos, “Alkylamino-terephthalate ligands stabilize 8-connected Zr4+ MOFs with highly efficient sorption for toxic Se species” Journal of Materials Chemistry A, 9, 2021, 3379-3387.
  103. V. Vállez-Gomis, J. Grau, J.L. Benedé, D.L.Giokas, A. Chisvert A. Salvador, “Fundamentals and applications of stir bar sorptive dispersive microextraction: A tutorial review” Analytica Chimica Acta 1153, 2021, 338271.
  104. T.G. Choleva, A. Sfakianaki, A.G. Vlessidis, D.L. Giokas*, “Evaluation of Photosensitive Paper Coatings as Detectors for Instrumentation-Free UV Photometric Analysis Based on Photography-Based Photometry” Chemosensors 9, 2021, 233.
  105. Gkogkou D., Rizogianni S., Tziasiou C., Gouma V., Pournara A.D., Tsoukleris D., Giokas D.L.*, Manos M.J. “Highly efficient removal of crude oil and dissolved hydrocarbons from water using superhydrophobic cotton filters” Journal of Environmental Chemical Engineering, 9 (5), 2021, art. no. 106170.
  106. T.G. Choleva, C. Matiaki, A. Sfakianaki, A.G. Vlessidis, D.L. Giokas*, “Paper-Based Device for Sweat Chloride Testing Based on the Photochemical Response of Silver Halide Nanocrystals” Chemosensors, 9, 2021, 286.
  107. V. Gouma, Ch. Tziasiou, A.D. Pournara, D.L. Giokas*, “A novel approach to sorbent-based remediation of soil impacted by organic micropollutants and heavy metals using granular biochar amendment and magnetic separation” Journal of Environmental Chemical Engineering, 10(2), 2022, 107316
  108. M. Tarara, D.L. Giokas, G.Z Tsogas, “Wax-Printed Fluidic Controls for Delaying and Accelerating Fluid Transport on Paper-Based Analytical Devices” Chemosensors, 10, 2022, 155.
  109. V. Gouma, A.D. Pournara, M. J. Manos, D. L. Giokas, “Fabric phase sorpitive extraction and passive sampling of ultraviolet filters from natural waters using a zirconium metal organic framework-cotton composite” Journal of Chromatography A, 1670, 2022, 462945
  110. A.D. Pournara, E. Moisiadis, V. Gouma, M.J. Manos, D.L. Giokas*, “Cotton fabric decorated by a Zr4+ MOF for selective As(V) and Se(IV) removal from aqueous media” Journal of Environmental Chemical Engineering, 10(3), 2022, 107705.
  111. E.A. Akrivi, A.G. Vlessidis, N. Kourkoumelis, D.L. Giokas, G.Z. Tsogas, “Gold-activated luminol chemiluminescence for the selective determination of cysteine over homocysteine and glutathione” Talanta, 245, 2022, 123464
  112. G.Z. Tsogas, A.G. Vlessidis, D.L. Giokas, “Analyte-mediated formation and growth of nanoparticles for the development of chemical sensors and biosensors” Microchimica Acta 189 2022, 434. REVIEW ARTICLE.
  113. E. Moisiadis, A.D. Pournara, M.J. Manos, D.L. Giokas, “Development of a New Method to Estimate the Water Purification Efficiency of Bulk-Supported Nanosorbents under Realistic Conditions” Separations, 10, 2023, 140.
  114. T. Choleva, C. Matiaki, D. L. Giokas, “UV photometric assays on paper-based analytical devices by contact printing photography through transparent cellophane” Sensors and Actuators B: Chemical, 386, 2023, 133729.
  115. T.G. Choleva, Ch.Tziasiou, V. Gouma, A. G. Vlessidis, D. L. Giokas*, “In-Vitro Assessment of the Physiologically Relevant Oral Bioaccessibility of Metallic Elements in Edible Herbs Using the Unified Bioaccessibility Protocol”, Molecules, 28(14), 2023, 5396
  116. E. Moisiadis, A.D. Pournara, M.J. Manos, D.L. Giokas, “Development of a New Method to Estimate the Water Purification Efficiency of Bulk-Supported Nanosorbents under Realistic Conditions”, Separations, 10(2), 2023, 140.
  117. Ch. Tziasiou, E.K. Andreou, G.S. Armatas, M.J. Manos, A.D. Pournara, D. L. Giokas*, “Zr4+-mercaptosuccinate MOF for the uptake and recovery of gold nanoparticles and gold ions under batch and continuous flow conditions”, Chemical Engineering Journal, 489, 2024, 151107.

 

Πατέντες – Διπλώματα Ευρεσιτεχνίας

1.    Οργανισμός Βιομηχανικής Ιδιοκτησίας (ΟΒΙ), “Μέθοδος ταυτόχρονης αδιαβροχοποίησης και εισαγωγής αντι-βακτηριδιακών/αντι-ικών ιδιοτήτων σε βαμβακερά υφάσματα” (αρ. 1010262).

 

Επιστημονικές εκθέσεις σε Διεθνείς Τεχνολογικές – Βιομηχανικές Εκδόσεις (με ανώνυμους κριτές)

1.   Y. Kim, D.L. Giokas “Separation of algal particles from waste stabilization ponds by floating aquatic plant: Design approach” Environmental Engineering Research 8(3), 2003, 152-161  INVITED ARTICLE

2.   A. Chisvert, D.L. Giokas*, A. Salvador “Analytical determination of UV absorbing chemicals in the environment.” Household and Personal Care Today 4, 2010, 26-30. INVITED ARTICLE.

 

Editorial

1.    D. L. Giokas, M. I. Prodromidis, “From the bench to the hand: Point of need/point of care technologies and analytical assays for field testing and medical diagnostics”, Microchimica Acta, 189 (2022), Article: 280

2. D.L. Giokas, “Separation Science and Technology for Environmental Applications”, Separations 10(8), 2023, 419

 

Κεφάλαια σε βιβλία

1.   A. Chisvert, D. Giokas, J.L. Benedé, A. Salvador, “Environmental Monitoring of Cosmetic Ingredients”, Chapter 16 in Analysis of cosmetic products, 2nd Edition (Eds. A. Chisvert, A. Salvador), Elsevier, 2017, p. 632.

 

Επιστημονική Επιμέλεια βιβλίων

1.    Environmental Chemistry, 11th Edition, Stanley E. Manahan, 2022, CRC Press, p. 730 (Εκδόσεις Τζιόλα), σε συνεργασία με: Δ. Χελά (Πανεπιστήμιο Ιωαννίνων) και Ε. Ρεμουντάκη (Ε.Μ.Π.).

 

Ειδικές εκδόσεις

1.  Special Issue: “Optical Diagnostics with Point-of-Care and Point- of-Need Applications” στο διεθνές επιστημονικό περιοδικό Biosensors (I.F. 3.240, https://www.mdpi.com/journal/biosensors). Editors: D.L. Giokas (Department of Chemistry, University of Ioannina), N. Kourkoumelis (Medical Physics Laboratory, School of Medicine, University of Ioannina).

2. Special issue: “Development of Analytical Methods Based on Microextraction Techniques” στο διεθνές επιστημονικό περιοδικό Separations (I.F. 1.9, https://www.mdpi.com/journal/separations). Editors: Prof. A. Chisvert and Dr. J. Benede (Department of Analytical Chemistry, University of Valencia, Spain), D.L. Giokas (Department of Chemistry, University of Ioannina, Greece).

 

ΔΙΑΚΡΙΣΕΙΣ

Certificate of Outstanding Contribution in Reviewing από τα διεθνή επιστημονικά περιοδικά: Analytica Chimica Acta, Science of the Total Envirnment, Sensors and Actuators B: Chemical, Talanta, Spectrochimica Acta Part B: Atomic Spectroscopy, Microchemcal Journal, Journal of Pharmaceutical and Biomedical Analysis, Journal of Hazardous Materials

Certificate of Excellence in Reviewing από το διεθνές επιστημονικό περιοδικό Chemosphere.

Highligted Article in Microextraction Tech: (Link: http://microextraction.blogspot.com/2014/11/stir-bar-sorptive-dispersive.html)

Highligted Article in SeparationsNOW  (Link: http://www.separationsnow.com/details/ezine/14f033f64a1/In-situ-suspended-aggregate-microextraction-Generic-method-for-organic-compounds.html?tzcheck=1)

Best Oral Communication Award της εργασίας με τίτλο: “Novel and versatile microextraciton appraoches based on dispersion of magnetic materials coating stir bars” που παρουσιάτηκε στο XXI Meeting of the Spanish Society of Analytical Chemistry (SEQA 2017), Valencia, Spain, 5-7 September 2017.




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