Metal oxide semiconductors have attracted a lot of research interest over the last decades in an effort either to improve their properties in existing applications or to render them realizable in novel ones. Applicable fields include, but are not limited to, optoelectronics, renewable energy, food and clothing, cosmetics and medicine. The first part of my presentation will show the results of our effort to hydrothermally grow spiky nanostructures of tungsten trioxide for use as cold electron emitters. The growth technique is known to be very simple but also very time consuming thus we focused on finding the proper conditions to produce good quality material at reasonable amounts of time. The second and biggest part of my presentation will be devoted to the deposition and study of vanadium dioxide. The material is thermochromic i.e. at a certain temperature/range both its infrared transmittance/reflectance and its electrical resistivity change, the former by many decades and the latter by several orders of magnitude! We used the atmospheric pressure chemical vapor deposition method and focused our research in finding proper precursor gas flow conditions and favorable substrates for fabrication of nanostructured VO2 having as steep thermochromic changes and as narrow hysteresis loops as possible.
Time:
12:00
Description:
Speaker 1: Kyriakos PETRATOS
Title: "Structure and psychrophilic adaptation of alcohol dehydrogenase from the antarctic Moraxella sp. TAE123".
UNIVERSITY OF CRETE, SCHOOL OF HEALTH SCIENCES
FACULTY OF MEDICINE, DEPT. OF BASIC SCIENCES
ΠΑΝΕΠΙΣΤΗΜΙΟ ΚΡΗΤΗΣ, ΣΧΟΛΗ ΕΠΙΣΤΗΜΩΝ ΥΓΕΙΑΣ
ΤΜΗΜΑ ΙΑΤΡΙΚΗΣ, ΤΟΜΕΑΣ ΒΑΣΙΚΩΝ ΙΑΤΡΙΚΏΝ ΕΠΙΣΤΗΜΩΝ
SEMINAR
ΣΕΜΙΝΑΡΙΟ
“Small molecule targeting of ion channels and GPCRs”
Dr Diomedes E. Logothetis
Professor and Chair
Dept of Pharmaceutical Sciences Northeastern University Boston, MA
Abstract
Graphene based nanostructured systems comprise a material class of growing technological and scientific importance. Joining materials with vastly different properties, polymer graphene heterosystems promise diverse applications in surface and nanotechnology, including, for example, thin films, nanocomposites, organic photovoltaics or nanotribology. Here we present results from a molecular simulation approach for the detailed study of hybrid graphene/polymer materials at the molecular level, over a broad range of time and length scales. Results concerning structure-properties relations are presented, for various hybrid multi-phase systems: (a) Thin polymer films supported by multi-layer graphene sheets, (b) Graphene based polymer nanocomposites with different types of functionalized graphene layers, and (c) Crystallization and ultra-fast melting of a single polymer chain adsorbed on freestanding graphene. The spatial and dynamical heterogeneities of the hybrid systems are analyzed, resolving their effect on the structural and dynamical (Brownian motion) behavior of both polymer chains and graphene layers.
For forthcoming colloquia, please visit:
http://www.materials.uoc.gr/en/colloquia
TITLE: ‘ Growth Hacking: the future of Marketing in Tech ‘
HOST: Stefano Iellamo, TNL, ICS/FORTH
ABSTRACT: The modern marketing evolved significantly from the days of
standard 4P concept. Nowadays a marketer has to deal with product,
engineering, automation, data and tons of experimentation. This deep
integration of marketing, product and data gives to the tech businesses
more viability, adaptability and sustainability. That’s why tech
companies and start-ups are embracing the growth hacking toolkit as it
allows them to establish product-market fit, acquire customer faster and
then retain them better.
In this talk I will de-mystify the growth hacking concept focusing on
the lean marketing funnel, the growth hacking tools and great examples
from the US Tech companies, UK FinTech start-ups and my own experience.
Additional focus will be on data science and how marketing can leverage
the data to make the right decisions.
BIO: With over 10 years of marketing experience in FMCG, Telecom,
FinTech and tech start-ups, Victoria’s expertise lies in integrated
marketing strategies, branding, advertising, product management, digital
marketing, consumer empathy and business model innovation. She is proud
of having worked with exciting brands as KitKat, Nesquik, Orange, EE and
now QuickBooks. Recently at EE Victoria was in charge of launching from
scratch a digital-focused “EE pay as you go” brand.
In her free time Victoria is passionate about start-up scene: she is a
marketing strategic at the London Venture Factory, a mentor at Virgin
StartUp and a speaker at marketing conferences and events.
Victoria holds an Executive MBA from the London Business School.
Time:
12:00
Location:
Chemistry Seminar Room
Description:
CHEMISTRY SEMINAR
SPEAKER:Professor Vangelis G. Daskalakis
Department of Environmental Science & Technology, Cyprus University of Technology
TITLE:Oxygen Evolution and Reduction: Common Principles
Abstract
Liquid, ion or particle transport, or transfers between phases, inside civil engineering materials, play a critical role on their properties or their durability. Our recent developments in NMR and MRI in Laboratoire Navier allow us to obtain internal measures which provide a direct quantification of several of these physical phenomena. The results sometimes question the usual assumptions relying on macroscopic observations in each case. I will present a few examples: homogeneous desaturation in drying nanoporous systems, subflorescence dramatically slowing down plaster drying, direct internal measurements showing lower dispersion than assumed so far, direct observation of colloid transport and adsorption in model soils, liquid transfers inside a composite concrete, peculiar characteristics of wood imbibition, breakage of the non-Newtonian characteristics of yield stress fluids flowing through a porous medium.
Successive pictures in a longitudinal cross-section of the distribution of paramagnetic nanoparticles injected (bottom) as a step in the liquid flow through a bead packing. The flow is first from bottom to top then inverted twice. The progressive dispersion is observed in the vertical step thickness which continuously increases.
For forthcoming colloquia, please visit:
http://www.materials.uoc.gr/en/colloquia
Time:
12:00
Location:
“Seminar Room 1”, FORTH’s bldg
Description:
IMBB COLLOQUIA
Vassiliki THEODOROU
Delidakis' Lab
Title: "Regulation of embryonic neurogenesis by proneural transcription factors and the counteracting action of Notch signaling".