Atmospheric pressure air plasma treatment to improve the 3D printing of polyoxymethylene

Muro-Fraguas, Ignacio; Sainz‐García, Elisa; Pernía‐Espinoza, Alpha; Alba‐Elías, Fernando

doi:10.1002/ppap.201900020

Cited by 8 publications

(9 citation statements)

References 24 publications

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“…Hence, POM filament was used for parts with increased temperature demands (POM is dimensionally stable up to at least 130 °C [18] ). To meet the known constructional limitations of POM 3D-printing, sharp corners and edges were avoided in the design of the POM parts, because these are particularly prone to warping [19] . The openDSF chassis consisted of 14 different 3D-printed parts ( Fig.…”

Section: Hardware Descriptionmentioning

confidence: 99%

A low-cost 3D-printable differential scanning fluorometer for protein and RNA melting experiments

et al. 2022

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Differential scanning fluorimetry (DSF) is a widely used biophysical technique with applications to drug discovery and protein biochemistry. DSF experiments are commonly performed in commercial real-time polymerase chain reaction (qPCR) thermal cyclers or nanoDSF instruments. Here, we report the construction, validation, and example applications of an open-source DSF system for 176 €, which, in addition to protein-DSF experiments, also proved to be a versatile biophysical instrument for less conventional RNA-DSF experiments. Using 3D-printed parts made of polyoxymethylene, we were able to fabricate a thermostable machine chassis for protein-melting experiments. The combination of blue high-power LEDs as the light source and stage light foil as filter components was proven to be a reliable and affordable alternative to conventional optics equipment for the detection of SYPRO Orange or Sybr Gold fluorescence. The ESP32 microcontroller is the core piece of this openDSF instrument, while the in-built I 2 S interface was found to be a powerful analog-to-digital converter for fast acquisition of fluorescence and temperature data. Airflow heating and inline temperature control by thermistors enabled highaccuracy temperature management in PCR tubes (±0.1 °C) allowing us to perform highresolution thermal shift assays (TSA) from exemplary biological applications.

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Section: Hardware Descriptionmentioning

confidence: 99%

A low-cost 3D-printable differential scanning fluorometer for protein and RNA melting experiments

et al. 2022

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“…In terms of its functional features, such low hygroscopicity, wear resistance, light weight, dimensional stability or tensile strength it can compete successfully with other plastics or even metals. [31] There are several literature reports on the of polyoxyethylene surface properties modification with plasma. Terpiłowski et al studied the effects of air, oxygen, argon and nitrogen cold plasma for the surface free energy of POM.…”

Section: Introductionmentioning

confidence: 99%

Effect of Non‐Thermal Sulfur Hexafluoride Cold Plasma Modification on Surface Properties of Polyoxymethylene

Chodkowski,

Terpiłowski,

Románszki

et al. 2024

ChemPhysChem

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X‐ray photoelectron spectroscopy was employed to reveal the differences in the chemical structure of the topmost layer after plasma modification. It was found out that changes in the surface properties of the polymer could be observed even after 20 seconds of treatment. The surface becomes hydrophobic or superhydrophobic, with the water contact angles up to 160 degrees. Morphological changes and increased roughness can be observed only in the nanoscale, whereas the structure seems to be unaffected in the microscale. As a result of plasma modification a permanent hydrophobic effect was obtained on the polyoxymethylene surface.

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“…Anagreh et al obtained the improved adhesion applying the oxygen and argon low-pressure plasma system [33]. Muro et al made an attempt to improve the 3D printing of polyoxymethylene via the atmospheric pressure air plasma treatment [31]. However, no attempts have been reported on the hydrophobization of polyoxymethylene via the plasma process, whereas a superhydrophobic effect is desirable for many applications in either industrial or household environments [34].…”

Section: Introductionmentioning

confidence: 99%

Effect of non-thermal sulphur hexafluoride cold plasma modification on surface properties of polyoxymethylene

Chodkowski,

Terpiłowski,

Románszki

et al. 2023

Preprint

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This paper deals with the surface modification of polyoxymethylene by the low-pressure non-thermal RF plasma using the sulphur hexafluoride plasma gas. The plasma treatment was performed based on various processing parameters including time, gas flow rate and plasma power. The effects were estimated on the basis of surface wettability determined by the water contact angle measurements. Morphological changes of the material surface were studied by scanning electron microscopy and optical profilometry. X-ray photoelectron spectroscopy was employed to reveal the differences in the chemical structure of the topmost layer after plasma modification. It was found out that changes in the surface properties of the polymer could be observed even after 20 seconds of treatment. The surface becomes hydrophobic or superhydrophobic, with the water contact angles up to 160 degrees. Morphological changes and increased roughness can be observed only in the nanoscale, whereas the structure seems to be unaffected in the microscale. As a result of plasma modification a permanent hydrophobic effect was obtained on the polyoxymethylene surface.

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Atmospheric pressure air plasma treatment to improve the 3D printing of polyoxymethylene

Cited by 8 publications

References 24 publications

A low-cost 3D-printable differential scanning fluorometer for protein and RNA melting experiments

A low-cost 3D-printable differential scanning fluorometer for protein and RNA melting experiments

Effect of Non‐Thermal Sulfur Hexafluoride Cold Plasma Modification on Surface Properties of Polyoxymethylene

Effect of non-thermal sulphur hexafluoride cold plasma modification on surface properties of polyoxymethylene

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