Unit:
Τομέας ΙΙ [Οργανική Χημεία – Οργανική Χημική Τεχνολογία – Χημεία Τροφίμων]Library of the School of Science
Author:
Ηλιόπουλος Νικόλαος
Dissertation committee:
Μαρίνος Πιτσικάλης Αναπληρωτής Καθηγητής ΕΚΠΑ, Ερμόλαος Ιατρού Αναπληρωτής Καθηγητής ΕΚΠΑ, Νικόλαος Κανελλόπουλος Ερευνητής Α΄ ΕΚΕΦΕ «Δημόκριτος»
Original Title:
Ανάπτυξη και μελέτη νανοσύνθετων κλωστοϋφαντουργικών πολυμερικών υλικών, με χρήση συμβατικών και τροποποιημένων νανοπληρωτικών προσθέτων
Translated title:
Development and characterization of novel modified textiles using polymers nanocomposites based on conventional and multifunctional nanofillers
Summary:
The subject of this thesis is the use and study of nanomaterials in finishes of
textile materials, in order to improve their properties and especially their
protection from bacteria.
For this purpose, they were added to wool fabric and wool fabric coated with
alginate, known antibacterial substances, such as ions and copper
nanoparticles, as well as innovative substances, such as modified dendritic
polymers and hybrid nanocomposite materials based on coal.
The finished fabrics were characterized for their textile and antibacterial
properties. For the determination of their antibacterial properties were used
two standard methods. Alongside it was developed and used an inventive method
of quantitative determination of bacterial protection that offers any substance
(organic, inorganic, natural or synthetic) that is applied in any material or
substrate to give bacterial protection, using the fluorescence of chlorophyll a
of cyanobacteria. In this way, finishes of wool fabric that offer from good
(80% inhibition of growth of bacteria) to complete bacterial protection (100%
inhibition of growth of bacteria) were achieved.
Furthermore, in the context of this thesis has been studied the antibacterial
activity of new hybrid nanocomposite substances in the growth of liquid
cultures of cyanobacteria and algae and was investigated the way in which these
substances inhibit the photosynthetic function of cyanobacteria and superior
plants. Special interest presents the inhibition of Photosystem’s II activity
(until 50 %) and the complete inhibition of Photosystem’s I activity in the
presence of new nanocomposite hybrid substances, owning to the fact that never
before has a similar inhibitory effect been reported.
Keywords:
Wool, Antibacterial properties, Cyanobacteria, Chlorophyll fluorescence, Inhibitors of photosynthesis
Number of index pages:
1-11
Number of references:
279
