Post-graduate theses

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Identifier	000361100
Title	Laser-assisted fabrication of Si biomimetic hierarchical surfaces for tissue engineering applications
Alternative Title	Κατασκευή βιομιμητικών ιεραρχικών δομών πυριτίου με χρήση λέιζερ με ερφαρμογές στην αναγεννητική ιστών
Author	Μπακογιάννη, Σοφία Κ
Thesis advisor	Φωτάκης, Κώστας
Abstract	This dissertation deals with ultrafast laser micro / nano-structuring of crystalline silicon. Irradiation of crystalline Si with intense ultrafast laser light in the presence of a reactive gas (sulfur hexafluoride, SF6) or in water environment leads to a change in its surface morphology. Upon laser irradiation, silicon surface is covered with a quasi-ordered array of micrometer-sized structures (Si spikes), when processing occurs in SF6, or with high density regular arrays of nanometer-scale structures (Si ripples, Si rods) when processing occurs in water. The microstructured Si surface has near-unity absorptance from the near-ultraviolet to the near-infrared and acquires increased hydrophobicity. Finally, we report on the potential biological applications that laser-structured Si may have. We investigate the fibroblast cell adhesion and viability on the laser-textured Si surfaces as well as the covalent attachment of amyloid peptides on them.
Language	English
Subject	Cell response surface functionalization
	Laser micro/nano-structuring
	Si biological applications
	Βιολογικές εφαρμογές
	Επιφανειακή ενεργοποίηση
	Κυτταρική απόκριση
	Πυρίτιο μικρο/νανο-δόμηση με χρήση λέιζερ
Issue date	2010-11-19
Collection	School/Department--School of Sciences and Engineering--Department of Physics--Post-graduate theses
	Type of Work--Post-graduate theses
Permanent Link	https://elocus.lib.uoc.gr//dlib/d/c/7/metadata-dlib-dd736732bd3ac2152d91374e0ce274a0_1286783510.tkl
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