Submicron Laser-Induced Structures and Their Applications

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43915136" target="_blank" >RIV/60461373:22310/17:43915136 - isvavai.cz</a>

Result on the web

<a href="https://waset.org/Publication/submicron-laser-induced-dot-ripple-and-wrinkle-structures-and-their-applications/10007721" target="_blank" >https://waset.org/Publication/submicron-laser-induced-dot-ripple-and-wrinkle-structures-and-their-applications/10007721</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Submicron Laser-Induced Structures and Their Applications

Original language description

For the experiments, two types of materials were chosen, a representative of non-biodegradable polymers, polyethersulphone (PES) and polyhydroxybutyrate (PHB) as biodegradable material. Exposure of solid substrate to laser well below the ablation threshold can lead to formation of various surface structures. The ripples have a period roughly comparable to the wavelength of the incident laser radiation, and their dimensions depend on many factors, such as chemical composition of the polymer substrate, laser wavelength and the angle of incidence. On the contrary, biopolymers may significantly change their surface roughness and thus influence cell compatibility. The focus was on the surface treatment of PES and PHB by pulse excimer KrF laser with wavelength of 248 nm. It was found that the combination of certain input parameters leads not only to the formation of optimal narrow pattern, but to the combination of a ripple and a wrinkle-like structure, which could be an optimal candidate for cell attachment. The interaction of different types of cells and their interactions with the laser exposed surface were studied. It was found that laser treatment contributes as a major factor for wettability/contact angle change. The combination of optimal laser energy and pulse number was used for the construction of a surface with an anti-cellular response. Due to the simple laser treatment, we were able to prepare a biopolymer surface with higher roughness and thus significantly influence the area of growth of different types of cells (U-2 OS cells).

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

International Journal of Materials and Metallurgical Engineering

ISBN

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ISSN

2010-3778

e-ISSN

neuvedeno

Number of pages

7

Pages from-to

2655-2661

Publisher name

World Academy of Science, Engineering and Technology (WASET)

Place of publication

Connecticut

Event location

Sydney

Event date

Jan 26, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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