Simultaneous process of surface modification and sterilization for polystyrene dish

Hosoya, Kazuki; Takahashi, Kazunari; Oya, Kei; Iwamori, Satoru

doi:10.1016/j.vacuum.2017.10.006

Cited by 12 publications

(5 citation statements)

References 54 publications

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“…In contrast, the contact angle after UV treatment gradually decreased with the treatment time but saturated after 5 min. Basing on this result, the required surface modification may be performed by both plasma and AOS excited by UV lamp 12 . Herein, it was confirmed that the surface after the plasma treatment was more hydrophilic as compared with that after the UV treatment.…”

Section: Resultsmentioning

confidence: 63%

“…The contact angles after surface modification are presented in and AOS excited by UV lamp. 12 Herein, it was confirmed that the surface after the plasma treatment was more hydrophilic as compared with that after the UV treatment. Enhancement of the adhesion with copper might be expected due to the PEEK surface modification from hydrophobic to hydrophilic state.…”

Section: Resultsmentioning

confidence: 67%

“…Plasma treatment is a conventional surface modification method; however, it exhibits several disadvantages, including the complexity and high cost of the preparation process and the difficulty of working with surfaces of complicated shapes 10 . Further, the ultraviolet (UV) treatment of various polymers has been reported; however, there are few studies in these reports on PEEK's UV treatment and adhesion to copper metals 11–18 . Therefore, we have focused on PEEK surface modification using active oxygen (AOS) and UV light to replace the plasma processing.…”

Section: Introductionmentioning

confidence: 99%

“…10 Further, the ultraviolet (UV) treatment of various polymers has been reported; however, there are few studies in these reports on PEEK's UV treatment and adhesion to copper metals. [11][12][13][14][15][16][17][18] Therefore, we have focused on PEEK surface modification using active oxygen (AOS) and UV light to replace the plasma processing. Active oxygen is represented by oxygen species possessing a high oxidizing potential.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Enhanced adhesion of copper plating to polyether ether ketone based on active oxygen species generated under ultraviolet irradiation

Yoshida

Nakanishi

Yamanaka

et al. 2022

Surface & Interface Analysis

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Polyether ether ketone (PEEK) is a substrate for metal plating to overcome insulation defects and satisfy the increased demands of mechanically robust electronic circuit boards. However, pristine PEEK is hydrophobic; hence, the adhesion between the metal film and PEEK substrate is poor. Therefore, the PEEK surface should be modified to improve hydrophobicity. We have proposed the active oxygen (AOS) treatment under ultraviolet (UV) light as an alternative to a conventional plasma treatment method. Characteristics of the PEEK surfaces obtained by these methods are compared. We explore the effects of reactive‐oxygen and UV light exposure time on the PEEK surface modification. The contact angle of water drop on PEEK after the AOS treatment is lower than that of untreated PEEK. Furthermore, COO groups are observed on the PEEK surface after the treatment. Although plasma treatment has the effect of roughening the surface, it is desirable not to roughen the surface for use in electronic circuit boards. Moreover, we have reported the adhesion strength between PEEK and copper plating without surface roughening.

show abstract

Section: Resultsmentioning

confidence: 63%

Section: Resultsmentioning

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Enhanced adhesion of copper plating to polyether ether ketone based on active oxygen species generated under ultraviolet irradiation

Yoshida

Nakanishi

Yamanaka

et al. 2022

Surface & Interface Analysis

Self Cite

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“…1) AOS exposure leads to microorganism inactivation. 10) In order to establish this technology for use with AOS, determining the presence of AOS and providing an indicator for the sterilization process is necessary; moreover, technology for detecting reactive AOS is highly necessary. However, the measurement methods for AOS in the atmosphere require specialized and expensive equipment, such as an optical laser system 11) and a vacuum ultraviolet (UV) light source; 12,13) furthermore, electron spin resonance spectroscopy, which is method for detecting radicals with short lifetimes, e.g.…”

Section: Introductionmentioning

confidence: 99%

Chemical stability of a colorimetric indicator based on sodium alginate thin film and methylene blue dye upon active oxygen species exposure

Yenchit

Yamanaka

Temeeprasertkij

et al. 2020

Jpn. J. Appl. Phys.

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Active oxygen species (AOS) generated in the atmosphere can be applied in various industrial processes owing to their extremely strong oxidative ability. Methylene blue (MB) decolors upon exposure to AOS owing to dye degradation; this property can be used to detect the AOS. To detect AOS with higher oxidative ability, it is necessary to stabilize MB by mixing it with sodium alginate. In our previous work, we showed that the OH* concentration in the AOS increased under the high-humidity condition. Herein, the decolorization mechanism of MB-dyed sodium alginate thin films upon exposure to AOS was elucidated under low- and high-humidity conditions; decolorization was observed only under the latter. We analyzed an MB-dyed sodium alginate thin film indicator to elucidate the chemical reactions occurring as well as the decolorization mechanism generated under the high-humidity condition. We found that the decolorization of the film was caused by MB decomposition upon exposure to the AOS generated under the high-humidity condition.

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Correlation between optical constants and cell adhesion on diamond-like carbon films

Ohgoe,

Hiratsuka,

Manome

et al. 2024

Diamond and Related Materials

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Simultaneous process of surface modification and sterilization for polystyrene dish

Cited by 12 publications

References 54 publications

Enhanced adhesion of copper plating to polyether ether ketone based on active oxygen species generated under ultraviolet irradiation

Enhanced adhesion of copper plating to polyether ether ketone based on active oxygen species generated under ultraviolet irradiation

Chemical stability of a colorimetric indicator based on sodium alginate thin film and methylene blue dye upon active oxygen species exposure

Correlation between optical constants and cell adhesion on diamond-like carbon films

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