To: 17/04/2019 12:00
We propose a general theoretical framework that enables us to describe self-assembling behaviour of hybrid macromolecules comprising dendritically-branched and linear blocks in selective solvents. Structural properties of resulting nano-assemblies are predicted as a function of intramolecular solvophilic/solvophobic balance and molecular architecture of the blocks. In particular, we demonstrate that macromolecules with highly branched solvophilic blocks exhibit a stronger trend to assemble into spherical micellar-like aggregates as compared to their linear chain homologs. The diagram of morphological states of the solution nanostructures comprising ranges of thermodynamic stability of spherical and cylindrical micelle-like aggregates and polymersomes is constructed and its systematic evolution as a function of degree of branching of soluble bock is analysed. We demonstrate that increasing degree of branching of solvophilic block leads to stabilization of spherical aggregates as compared to cylindrical or lamellar-like ones. At the same time, the number of functionalizable terminal groups exposed to the surrounding media increases only weakly upon increasing branching degree of the soluble block due to simultaneous decrease in the aggregation number. This theoretical predictions provides important guide lines for design of vector systems for targeted delivery of biologicaly active molecules (e.g. anticancer drugs)
Abstract
Model VPF-100 liquid nitrogen variable temperature cryostat with sample in vacuum.
Technical Characteristics
Temperature range: 77K-500K
Typical LN2 hold time: 8 hours at 77K
Typical Stability:+/-50mK
(Specifications assume no radiational or experimental heat load)
This system includes:
- 0.4 liter nitrogen reservoir with built-in charcoal getter
- Funner for filling reservoir
- Refill displacer assembly (to permit refill without affecting temperature control)
- 3.0" O.D. sample area with 1.25" diameter sample mount, 50 ohm control heater, and one (1) standard curve silicon diode temperature sensor
- Outer shroud with 3.25" square window block and four (4) 1.63" diameter clear vew fused Quartz windows
- Instrumentation skirt with one (1) 10-pin electrical feedthrough for heater and sensor wires, three (3) blank ports, and evacuation valve and a sefety pressure relief valve.
- Gold plated OFHC copper optical sample holder with M3 tapped hole for temperature sensor
Procedure
Eπί της καθαρής αξίας του τιμολογίου οι ακόλουθες νόμιμες κρατήσεις διενεργούνται υπέρ της Ελληνικής Ενιαίας Ανεξάρτητης Αρχής Δημοσίων Συμβάσεων, μία κράτηση ίση προς 0,06% σύμφωνα με το άρθρο 4 παρ.3 του ν. 4013/2011, καθώς και μία κράτηση ίση προς 3,6% επί του ως άνω ποσού (του 0,06% δηλαδή) υπέρ χαρτοσήμου και ΟΓΑ.
Κριτήριο επιλογής θα είναι η συμφερότερη προσφορά. Θα ληφθούν υπόψιν η συμφωνία της προσφοράς με τις τεχνικές προδιαγραφές, η ποιότητα, o χρόνος παράδοσης και εγγύησης, η τιμή.
Contact Persons
To: 26/03/2019 17:00
Systematic conservation planning tools have been recently broadly used to spatially identify management priorities and help minimize potential impacts from surrounding human activities. Fine-filter approaches that focus on specific species are most commonly used for setting nature conservation priorities worldwide. Alternatively, instead of using species as biodiversity surrogates, coarse-filter approaches focus on preserving environmental characteristics and have recently gained increasing attention yet their connection to conservation planning still remains limited. I will present examples from the two approaches based on my previous and present work. The case studies will focus on how and which biodiversity and environmental surrogates are useful and how to select them. They will also illustrate how combining conservation with land use (ex. urban) planning may provide guidelines to avoid losing irreplaceable, high nature value areas and give concrete management tools to evaluate the efficiency of the existing protected areas network and set future conservation priorities.
Position Description
The candidate will develop high frequency measurement setup with the emphases on 2D material systems.
Related Project
NANOSMART -Required Qualifications
- BS in Physics, Electrical Engineering or Material Science 30%
Desirable Qualifications
- Fluency in English language 30%
- Computer and automation programming skills (Vee) 40%
Application Procedure
In order to be considered, the application must include:
- Application Form (Form Greek or Form English)
- Brief CV
- Scanned copies of academic titles
- University department certificate for enrollment in a Master’s program
Appointment Duration
3 monthsFunding
Position Description
Μετρήσεις σε κατάλληλη πειραματική διάταξη για λειτουργία συστήματος διαχείρισης ποιότητας αέρα εσωτερικού χώρου
Required Qualifications
- Εργαστηριακή Προϋπηρεσία μεγαλύτερη των 2 ετών
- Εμπειρία και γνώσεις κατ' ελάχιστο στα παρακάτω πεδία:Οξείδια μετάλλων
- Επικαλύψεις /εναποθέσεις με τεχνικές sputtering, spin coating & dip coating,thermal evaporation, stencil/screen printed
- Χαρακτηρισμός με τεχνικές SEM, AFM, UV- Vis - NIR, XRD, Optical microscope
- Μελέτη αισθητήρων αερίων με τεχνικές Conductometric & SAW
Desirable Qualifications
- Αναλυτικές διατάξεις μελέτης αερίων ρύπων
- Εμπειρία στην αλληλεπίδραση αερίων με επιφάνειες υλικών
Application Procedure
Στο φάκελο υποβολής της πρότασης θα πρέπει να εμπεριέχονται τα ακόλουθα:
- Αίτηση (Formgr) με αναφορά στον κωδικό της θέσης και στο όνομα του προγράμματος
- Αναλυτικό Βιογραφικό Σημείωμα
- Ευκρινή φωτοαντίγραφα τίτλων σπουδών (πτυχίο και μεταπτυχιακό)
- Πρόσφατη βεβαίωση υποψήφιου διδάκτορα
