Effect of plasma treatment on the surface properties of polydimethylsiloxane

Kaczorowski, W.; Szymański, W.; Batory, D.; Niedzielski, P.

doi:10.1002/app.41635

Cited by 18 publications

(17 citation statements)

References 64 publications

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“…In the case of the last, the most frequent processes include etching [ 16 , 32 , 33 ], cross-linking [ 16 , 34 , 35 ] and the deposition of thin coatings (e.g., DLC, gold or SiOx) [ 20 , 21 , 22 , 36 ]. Unfortunately, not all of the available modifications can produce stable properties for the surface, and their ageing manifests through a change in the water contact angle of the surface and its surface free energy [ 37 , 38 ]. When PDMS is, for instance, subject only to plasma pre-treatment, it is also necessary to determine the time and ageing rate of the surface, which is affected by various factors, including, in particular, the storage environment and the type and parameters of the modification [ 37 , 38 ].…”

Section: Introductionmentioning

confidence: 99%

“…Unfortunately, not all of the available modifications can produce stable properties for the surface, and their ageing manifests through a change in the water contact angle of the surface and its surface free energy [ 37 , 38 ]. When PDMS is, for instance, subject only to plasma pre-treatment, it is also necessary to determine the time and ageing rate of the surface, which is affected by various factors, including, in particular, the storage environment and the type and parameters of the modification [ 37 , 38 ]. The ageing effect is not observed after the production of DLC coatings on the PDMS substrate [ 16 , 38 ].…”

Section: Introductionmentioning

confidence: 99%

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Impact of Plasma Pre-Treatment on the Tribological Properties of DLC Coatings on PDMS Substrates

et al. 2021

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The processes of the deposition of carbon coatings on PDMS (polydimethylsiloxane) substrates using plasma techniques are widely used in a large number of studies, in applications ranging from electronic to biological. That is why the potential improvement of their functional properties, including tribological properties, seems very interesting. This paper presents an analysis of the impact of plasma pre-treatment on the properties of the produced diamond-like carbon (DLC) coatings, including changes in the coefficients of friction and wear rates. The initial modification processes were performed using two different techniques based on low-pressure plasma (RF PACVD, radio-frequency plasma-assisted chemical vapour deposition) and dielectric barrier discharge (DBD) plasma. The effects of the above-mentioned treatments on the geometric structure of the PDMS surface and its water contact angles and stability over time were determined. The basic properties of the DLC coatings produced on unmodified substrates were compared to those of the coatings subjected to plasma pre-treatment. The most interesting effects in terms of tribological properties were achieved after the DBD process and production of DLC coatings, achieving a decrease in wear rates to 2.45 × 10−8 mm3/Nm. The tests demonstrate that the cross-linking of the polymer substrate occurs during plasma pre-treatment.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impact of Plasma Pre-Treatment on the Tribological Properties of DLC Coatings on PDMS Substrates

et al. 2021

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“…Consequently, this procedure could reduce the amount of potential nucleation sites for AuTTF. Second, plasma treatment was found to damage the PDMS surface by creating cracks . A detailed inspection of the plasma‐treated surfaces by atomic force microscopy and scanning electron microscopy (SEM) revealed that the cracks were as deep as 18 nm and were visible all over the surface under the conditions used here (Figure S3 of the Supporting Information).…”

Section: Resultsmentioning

confidence: 88%

Formation of Single Micro‐ and Nanowires with Extreme Aspect Ratios in Microfluidic Channels

Lenz

Sebastian

Dittrich

2019

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Shown here is the site‐specific formation of single extraordinarily long metal–organic micro‐ and nanowires using a microfluidic device made of poly(dimethylsiloxane) (PDMS). This approach exploits two concepts, i) the diffusion of organic precursor molecules through PDMS and ii) the use of microfluidic channels as a growth template. To initiate wire formation, metal and organic precursor solutions are filled into different supply channels that are separated by PDMS. As the precursor diffuses through PDMS, and thereby infiltrates the adjacent channel, the growth of micro‐ and nanowires starts at the side walls of this adjacent channel. The formation yields single wires with sizes ranging from several hundreds of micrometers to millimeters at diameters of 0.5–2 µm. The principles of this formation pathway are demonstrated with the reaction of tetrathiafulvalene (TTF) and gold(III) ions that yields Au‐TTF wires. The influence of various reaction parameters including the choice of solvents and the chip fabrication protocol on the reaction are evaluated. Based on these findings, a further microfluidic device design with orthogonally arranged channels is developed, and the formation of single wires in a channel‐defined pattern is demonstrated. Moreover, the possibility of pulsed precursor supply allows for advanced control over the growth of the wires.

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“…The other two carbon peaks located at binding energies of ~286.1 eV and ~288 eV were associated with oxygen adsorbed on the coatings surface (Foong et al 2011;Takabayashi and Takahagi 2015). Thus, the results of XPS made it possible to evaluate the mutual share of sp 2 and sp Kaczorowski et al 2015). The quantitative analysis results of deconvoluted spectra are presented in Table 3.…”

Section: Materials Characteristicsmentioning

confidence: 99%

Physicochemical and Biological Investigation of Different Structures of Carbon Coatings Deposited onto Polyurethane

Kaczorowski

Batory

Jakubowski

et al. 2016

Braz. arch. biol. technol.

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The aim of this study was to examine the thrombogenic properties of polyurethane that was surface modified with carbon coatings. Physicochemical properties of manufactured coatings were investigated using transmission electron microscopy (TEM), atomic force microscopy (AFM), X-ray Photoelectron Spectroscopy (XPS), Raman spectroscopy and contact angle measurement methods. Samples were examined by the Impact-R method evaluating the level of platelets activation and adhesion of particular blood cell elements. The analysis of antimicrobial resistance against

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Effect of plasma treatment on the surface properties of polydimethylsiloxane

Cited by 18 publications

References 64 publications

Impact of Plasma Pre-Treatment on the Tribological Properties of DLC Coatings on PDMS Substrates

Impact of Plasma Pre-Treatment on the Tribological Properties of DLC Coatings on PDMS Substrates

Formation of Single Micro‐ and Nanowires with Extreme Aspect Ratios in Microfluidic Channels

Physicochemical and Biological Investigation of Different Structures of Carbon Coatings Deposited onto Polyurethane

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