Results found: 3

Number of results on page

Search results

Sort By:

Limit search:

Extreme Ultraviolet Surface Modification of Polyethylene Terephthalate (PET) for Surface Structuring and Wettability Control

100%

Ahad I., Fiedorowicz H., Budner B., Kaldonski T., Vázquez M., Bartnik A., Brabazon D.

Acta Physica Polonica A

2016

vol. 129

issue 2

241-243

The surface modification of polyethylene terephthalate (PET) polymer films has been performed by irradiation of extreme ultraviolet photons to investigate the effect of surface structuring on wettability control. For biomedical engineering applications, surface structuring and wettability control of PET films could enhance the polymer biocompatibility by promoting cell adhesion and consequently proliferation. The PET films are irradiated with laser plasma extreme ultraviolet source based on double stream gas puff target under different environments. The extreme ultraviolet modified PET film surfaces are characterized by atomic force microscopy and WCA goniometer. The extreme ultraviolet surface modification resulted in the formation of nano- and microstructuring on the polymer surfaces. The surface structuring consequently increased WCA making the PET surfaces more hydrophobic. The results demonstrate the direct relationship between surface roughness and hydrophobicity for extreme ultraviolet modified PET samples.

Characteristics of Carbon Films Deposited by Magnetron Sputtering

100%

Mróz W., Burdyńska S., Prokopiuk A., Jedyński M., Budner B., Korwin-Pawlowski M.

Acta Physica Polonica A

2009

vol. 116

issue S

S-120-S-122

Carbon thin films are often called in the literature, "diamond-like carbon" films. They consist of two basic allotropic forms of carbon, which are graphite and diamond. Carbon atoms with sp^{2} bonds form after deposition of a graphite-like phase. Atoms with sp^{3} bonds form a diamond-like phase. Diamond-like crystallites are built into a graphite-like phase matrix. In this paper there are presented experimental results of deposition of carbon films by the magnetron sputtering method and the results of analysis of the surface and phase structures of the deposited films. The amorphous carbon films were deposited from graphite targets on 316L steel substrates. The films were deposited at room temperature, in vacuum. The deposition time was 3 h; the depositions were conducted at two different distances between the substrate and the magnetron target.

Polycarbonate Polymer Surface Modification by Extreme Ultraviolet (EUV) Radiation

84%

Ahad I., Budner B., Korczyc B., Fiedorowicz H., Bartnik A., Kostecki J., Burdyńska S., Brabazon D.

Acta Physica Polonica A

2014

vol. 125

issue 4

924-928

The degree of the biocompatibility of polycarbonate (PC) polymer used as biomaterial can be controlled by surface modification for various biomedical engineering applications. In the past, PC samples were treated by excimer laser for surface reorganization however associated process alteration of bulk properties is reported. Extreme ultraviolet radiation can be employed in order to avoid bulk material alteration due to its limited penetration. In this study, a 10 Hz laser-plasma EUV source based on a double-stream gas-puff target irradiated with a 3 ns and 0.8 J Nd:YAG laser pulse was used to irradiate PC samples. The PC samples were irradiated with different number of EUV shots. Pristine and EUV treated samples were investigated by scanning electron microscopy and atomic force microscopy for detailed morphological characterization of micropatterns introduced by the EUV irradiation. Associated chemical modifications were investigated by X-ray photoelectron spectroscopy. Pronounced wall-type micro- and nanostructures appeared on the EUV modified surface resulting in a change of surface roughness and wettability.

Refine search results

3 Acta Physica Polonica A

1 2016

1 2014

1 2009

3 Budner B.

2 Ahad I.

2 Bartnik A.

2 Brabazon D.

2 Burdyńska S.

2 Fiedorowicz H.

1 Jedyński M.

1 Kaldonski T.

1 Korczyc B.

1 Korwin-Pawlowski M.

1 Kostecki J.

1 Mróz W.

1 Prokopiuk A.

1 Vázquez M.

Search results

Extreme Ultraviolet Surface Modification of Polyethylene Terephthalate (PET) for Surface Structuring and Wettability Control

Characteristics of Carbon Films Deposited by Magnetron Sputtering

Polycarbonate Polymer Surface Modification by Extreme Ultraviolet (EUV) Radiation