Solubilization of corona discharge- and plasma-treated polystyrene

Onyiriuka, Emmanuel C.; Hersch, Leroy S; Hertl, W.

doi:10.1016/0021-9797(91)90241-y

Cited by 40 publications

(23 citation statements)

References 4 publications

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“…The decreased wettability with Plazlyte was probably due to the release into water of polar (wettable) compounds from the catheter's surface during the first immersion. These compounds may be labile surface residues such as: (1) low-molecular-weight oxidized molecules 22,27 produced by scission during catheter oxidation (mainly methylformate and ␥-lactone 28 ); or (2) peracetic acid residues adsorbed on the catheter surface during sterilization. A further study should involve the systematic verification of peracetic acid levels at below the accepted AAMI limits.…”

Section: Surface and Bulk Modificationsmentioning

confidence: 99%

Plasma-based sterilization: Effect on surface and bulk properties and hydrolytic stability of reprocessed polyurethane electrophysiology catheters

Lerouge

Guignot

Tabrizian

et al. 2000

J. Biomed. Mater. Res.

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Plasma-based sterilization is a promising alternative to ethylene oxide (EO) for reprocessing of electrophysiology catheters. To assess its safety in terms of material damage, modifications of surface and bulk properties as well as hydrolytic stability of sterilized catheters were evaluated. Polyurethane (PU) single-use electrophysiology catheters were subjected to one, five, and ten sterilization cycles by Sterrad-100S and Plazlyte, as well as by pure EO for comparison. Surface analysis techniques (ATR-FTIR, XPS, DCA) showed oxidation limited to the near-surface layer induced by both plasma-based sterilizers, whereas EO induced slight but deeper alkylation. Using bulk analysis techniques (RP-HPLC, SEC), oligomer alteration was observed after all three sterilization techniques, without modification of molecular weights. Hydrolytic stability of catheters was slightly changed by plasma-based sterilization, with a small increase in released oligomers. Finally, although Plazlyte and Sterrad are both plasma-based techniques, they induced different impacts on catheters, such as the degradation of an additive with Sterrad, and a clear difference in coloration with Plazlyte.

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Section: Surface and Bulk Modificationsmentioning

confidence: 99%

Plasma-based sterilization: Effect on surface and bulk properties and hydrolytic stability of reprocessed polyurethane electrophysiology catheters

Lerouge

Guignot

Tabrizian

et al. 2000

J. Biomed. Mater. Res.

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“…• , mirrored by a substantial amount of the surface oxygen being lost (3)(4)(5)(6). This phenomenon is commonly attributed to chain scission reactions producing low molecular weight oxidized material (LMWOM) on the surface (7).…”

Section: Introductionmentioning

confidence: 99%

Stability of Polycarbonate and Polystyrene Surfaces after Hydrophilization with High Intensity Oxygen RF Plasma

Larsson¹,

Dérand²

2002

Journal of Colloid and Interface Science

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“…The surface of Culture PS had some active groups such as -OH, -C=O, and -COOH and a slight negative charge [51,52]. The surface of Collagen PS had the functional groups of the collagen molecules [53,54].…”

mentioning

confidence: 99%

Maintenance of hemiround colonies and undifferentiated state of mouse induced pluripotent stem cells on carbon nanotube-coated dishes

Akasaka

Yokoyama

Matsuoka

et al. 2011

Carbon

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Induced pluripotent stem (iPS) cells have attracted worldwide interest. However, there have been only a few studies investigating effective culture substrates for feeder-free culturing for the maintenance of iPS cells. In this study, we cultured mouse iPS cells under feeder-free conditions on carbon nanotube (CNT)-coated dishes and then evaluated the colony morphology and differentiation state of the cells on the dishes.After 5 d of cultivation in a medium containing 15% fetal bovine serum (FBS) and leukemia inhibitory factor (LIF), the colonies on thick films of multi-walled CNTs (MWCNTs) were observed to be hemiround; further, the cells expressed early undifferentiation markers. On the other hand, the colonies on a cell culture polystyrene dish and a collagen-coated polystyrene dish showed indistinct outline and spread well, and most spreading cells only weakly expressed early undifferentiation markers. These results indicate that the thick films of MWCNTs could maintain hemiround colonies and undifferentiated state of mouse iPS cells cultured under feeder-free conditions.

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Solubilization of corona discharge- and plasma-treated polystyrene

Cited by 40 publications

References 4 publications

Plasma-based sterilization: Effect on surface and bulk properties and hydrolytic stability of reprocessed polyurethane electrophysiology catheters

Plasma-based sterilization: Effect on surface and bulk properties and hydrolytic stability of reprocessed polyurethane electrophysiology catheters

Stability of Polycarbonate and Polystyrene Surfaces after Hydrophilization with High Intensity Oxygen RF Plasma

Maintenance of hemiround colonies and undifferentiated state of mouse induced pluripotent stem cells on carbon nanotube-coated dishes

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