VOYIATZIS, George

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VOYIATZIS, George

Research Director

Tel: +30 2610-965 253

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EDUCATION

1992: PhD in Chemical Engineering, Univ. of Patras, Greece
1983: Module de la Chimie Macromoléculaire Appliquée, Univ. Paris VI, France
1983: Maitrise de Chimie-Physique, Univ. Paris VII, France

RESEARCH ACTIVITIES

Physical Chemistry and Materials; Materials Characterization

Risk Assessment: (1) Migration Control of Nano-Structured Materials Incorporated Biopolymer Packaging, (2) Quantification of the Release of Food Packaging Components into relevant Simulants

Circular Economy: (1) Circular Economy through combination of High-Sensitivity Analytical Research Tools, (2) Assessment of the feasibility of Recycling Strategies or Wastes Valorization via specialty spectroscopic probes

Specialty Spectroscopic Probes: (1) Development of Flexible Spectro-Probes & Innovative On-Line Monitoring Methods, (2) Non-Invasive Detection of Drugs in the Aqueous Humor of the Eye, (3) Application of an Oscillating Cell and 90o Raman Scattered Light Collection Geometry in Ag/Au Nanocolloidal Solutions for Quantitative SERS Measurements (4) Quantification of DNA bases and of drugs in corporal fluids

Advanced Modified Polymers: (1) Food packaging materials – T-indicators/sensors via spin-cross-over (SCO) phenomenon, (2) Spectroscopic & Electrochemical study of the Acid/Base Doping Ability of High-T Polymer Electrolyte Membranes, (3) Anti-microbial Polymeric Materials with Controlled Release Characteristics, (4) Dispersion of Carbon Nanotubes and Nanoparticles in Polymer Matrixes, (5) Infiltration/Embedment of CNTs in Porous Polymer Membranes, (6) Protective textiles – Assessment of stabbing & shooting impact on the materials at the molecular level

PARTICIPATION IN RESEARCH PROJECTS

In the year 2021
2006-2023: ERANET INCOMERA 3rd Transnational Call 2017 NMP Thematic: Protective Textiles based on Carbon Nanotube Composites (PROTECT); Competitiveness, Entrepreneurship and Innovation” (NSRF 2014-2020): Development of Surface Coating Processes in Cotton Yarns / Fabrics for Single Stage Dyeing with Reduced Environmental Impact (ChromaSurf); Specific Action ‘Industrial Materials’ ” (NSRF 2014-2020): Development of nano carbon embedded breathable polyolefin films for industrial/construction roofing membranes (ROOF-BREATH); FP7-SEC- 2013.1.4-1: Smart and protective clothing for law enforcement and first responders – Capability Project (SMARTPRO); FP-7 LeadEra 2013 Lead Markets European Research Area Network (INPROTEX); FP7 -SME-2013, Research for the benefit of specific groups (WOOD-FLARETCOAT); NMP-2011-1.1-1-Large Smart and multifunctional packaging concepts using nanotechnology (NanoBarrier); NMP-2009-2.6-1-SICA Novel membranes for water technologies (BioNexGen); 261-SMS R&D support group in Added Value Products & Production Technologies in Traditional Greek Sectors (KLIMAX); 09ΣΥΝ-82-1156 New applications of textiles (SYNERGASIA-BREATH); 09ΣΥΝ-42-620 Nanotechnology applications to the environment (SYNERGASIA-MEKKA); ΗΡΑΚΛΕΙΤΟΣ-ΙΙ; NEST-Adventure-STREP (NERBIOS); Operational Program of Western Greece (MULTIFUNCTIONAL); Cooperation with S&T Institutions in non-European Countries (GR-USA); Bilateral Cooperation Program (GR-CZ); STREP for fuel cells (APOLLON-B); Network of Excellence (NanoMemPro); Industrial projects; Educational projects.

PUBLICATIONS IN SCIENTIFIC JOURNALS

96 Refereed Journal Papers; 1 chapter in book; 8 Papers in Referred Conference Proceedings; 2 Journal publication of referred conference proceedings; Patents: 3 Greek granted; 1 European withdrawn.

PRESENTATIONS AT CONFERENCES

Presentation in 40 International (10 invited) and 23 National (5 invited) Conferences.

PROFESSIONAL AFFILIATIONS

Editorial Board Member of Molecules (2019-); Topic Editor of Nanomaterials (2019-2021); Regional Editor of Recent Patents on Drug Delivery & Formulation (2010-2017); Controlled Release Society (CRS) 2006, 2008; European Society of Nanomedicine (ESNAM) 2009; European Foundation for Clinical Nanomedicine (CLINAM) 2008, 2009; American Chemical Society (ACS) 1994-2004; Hellenic Polymer Society; Hellenic Optical Society; Association of Greek Researchers.

TEACHING ACTIVITIES

1998-2021: Polymer characterization (Interdepartmental Operational Program for Education and Initial Vocational Training on Polymer Science and Technology, Univ. of Patras, Greece).
2018-2021: Material Characterization Techniques AND Technological Applications of Functional Materials (Materials Chemistry and Technology with Applications to Industry, Energy and the Environment, Chemistry Department, Univ. of Patras, Greece)

SELECTED PUBLICATIONS

 

  • “Miscibility behavior of Polybenzimidazole / Sulfonated Polysulfone blends for use in Fuel Cell Applications”, V. Deimede, G.A. Voyiatzis, J.K Kallitsis, L. Oingfeng, and N. J. Bjerrum, Macromolecules, 33: 7609-7617 (2000).
  • “Molecular orientation of Poly(ethylene terephthalate) / Poly(ethylene naphthalate) (PEN/PET) Copolymers utilizing Polarized Raman Spectra”, A. Soto and G.A. Voyiatzis, Macromolecules, 35: 2095-2104 (2002).
  • “Fast monitoring of the Molecular Orientation in Drawn Polymers using micro-Raman spectroscopy”, G.A. Voyiatzis and K.S. Andrikopoulos, Appl. Spectr., 56: 528-535 (2002).
  • “Incorporation of low molecular weight biocides into polystyrene-divinyl benzene beads with controlled release characteristics”, S.M. Iconomopoulou, A.K. Andreopoulou, A. Soto, J.K. Kallitsis, and G.A. Voyiatzis, J. Controlled Release, 102: 223-233 (2005).
  • “The effect of the molecular orientation on the release of antimicrobial substances from uniaxially drawn polymer matrixes” S.M. Iconomopoulou and G.A. Voyiatzis, J. Controlled Release, 103: 451-464 (2005).
  • “Non-invasive detection of antibiotics in the aqueous humour by Raman spectroscopy”, Th.I. Sideroudi, N. Pharmakakis, G.N. Papatheodorou and G.A. Voyiatzis, Laser Surg. Med., 38: 695-703 (2006).
  • “Quantitative analysis by Surface Enhanced Raman Scattering utilizing an oscillating-cell and right angle collection geometry” A.C. Manikas, A. Soto Beobide and G.A. Voyiatzis, Analyst 134: 587-592 (2009).
  • “Raman Spectroscopic Methodology for the Assessment of Multi-walled Carbon Nanotubes Dispersion in Polymer Nanocomposites” G. Bounos, K.S. Andrikopoulos, T.K. Karachalios and G.A. Voyiatzis, Carbon (2014).
  • “Enhancing Water Vapor Permeability in Mixed Matrix Polypropylene Membranes Through Carbon Nanotubes Dispersion” G. Bounos, K.S. Andrikopoulos, H. Moschopoulou, G.Ch. Lainioti, D. Roilo, R. Checchetto, T. Ioannides, J.K. Kallitsis and G.A. Voyiatzis, J. Membr. Sci., 524: 576-584 (2017).
  • “A known Iron(II) Complex in Different Nanoparticle Sizes: Variable-Temperature Raman Study of its Spin-Crossover Behavior” Z.G. Lada, K.S. Andrikopoulos, A. Chrissanthopoulos, S.P. Perlepes and G.A. Voyiatzis, Inorg. Chem., 58(8) 5183-5195 (2019).
  • “Poly(ethylene terephthalate) carbon-based nanocomposites: a crystallization and molecular orientation study” V. Alexiou, G.N. Mathioudakis, K.S. Andrikopoulos, A. Soto Beobide and G.A. Voyiatzis, Polymers, 12: 2626-14 (2020).
  • “Surface Enhanced Raman Scattering of Brilliant Green: packing density and stabilizing effect of the cationic surfactant CTAB on the “hotspot” spacing” G.N. Mathioudakis, A. Soto Beobide, S.H. Anastasiadis and G.A. Voyiatzis, Colloids Surf A: Physicochem Eng Asp, 610: 125912-8 (2021).
  • “Collagen orientation probed by polarized Raman spectra can serve as differential diagnosis indicator between different grades of meniscus degeneration” N. Prokopi, K.S. Andrikopoulos, A. Soto Beobide, G.A. Voyiatzis and D.J. Papachristou, Scientific Reports, 11: 20299-10 (2021).