Surface composition XPS analysis of a plasma treated polystyrene: Evolution over long storage periods

Ba, Ousmane M.; Marmey, Pascal; Anselme, Karine; Duncan, A.C.; Ponche, Arnaud

doi:10.1016/j.colsurfb.2016.04.026

Cited by 63 publications

(31 citation statements)

References 27 publications

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“…This may be due to subsequent oxidation reactions in the PDA coating in contact with air or reorganization in the PDA layer, where hydrophobic domains are shifted to the interfacial surface. This phenomenon appears to be like the one observed for the hydrophilization of polymer surfaces by plasma modification [49][50][51]. What is more, variant II of PDA modification on the surface of PU nanofibers results in four times faster water droplet imbibition time (imbibition time of about 100 s) after 28 days of storage of modified materials than on those modified using longer variant I (imbibition time of about 400 s, see Figure 8).…”

Section: Resultssupporting

confidence: 63%

Superhydrophilic Polyurethane/Polydopamine Nanofibrous Materials Enhancing Cell Adhesion for Application in Tissue Engineering

Kopeć

Wojasiński

Ciach

2020

IJMS

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The use of nanofibrous materials in the field of tissue engineering requires a fast, efficient, scalable production method and excellent wettability of the obtained materials, leading to enhanced cell adhesion. We proposed the production method of superhydrophilic nanofibrous materials in a two-step process. The process is designed to increase the wettability of resulting scaffolds and to enhance the rate of fibroblast cell adhesion. Polyurethane (PU) nanofibrous material was produced in the solution blow spinning process. Then the PU fibers surface was modified by dopamine polymerization in water solution. Two variants of the modification were examined: dopamine polymerization under atmospheric oxygen (V-I) and using sodium periodate as an oxidative agent (V-II). Hydrophobic PU materials after the treatment became highly hydrophilic, regardless of the modification variant. This effect originates from polydopamine (PDA) coating properties and nanoscale surface structures. The modification improved the mechanical properties of the materials. Materials obtained in the V-II process exhibit superior properties over those from the V-I, and require shorter modification time (less than 30 min). Modifications significantly improved fibroblasts adhesion. The cells spread after 2 h on both PDA-modified PU nanofibrous materials, which was not observed for unmodified PU. Proposed technology could be beneficial in applications like scaffolds for tissue engineering.

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Section: Resultssupporting

confidence: 63%

Superhydrophilic Polyurethane/Polydopamine Nanofibrous Materials Enhancing Cell Adhesion for Application in Tissue Engineering

Kopeć

Wojasiński

Ciach

2020

IJMS

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“…These results are consistent with previously reported chemical characterization of PS culture plates subjected to nitrogen plasma treatment. [ 33 ]…”

Section: Resultsmentioning

confidence: 99%

Inhibition of biofilm formation on polystyrene substrates by atmospheric pressure plasma polymerization of siloxane‐based coatings

Múgica‐Vidal

Sainz‐García

Muro-Fraguas

et al. 2021

Plasma Processes & Polymers

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Biofilms pose important economic and health risks in biomedical applications and in food industries. In this study, coatings that reduce the biofilm formation of Pseudomonas aeruginosa on polystyrene cell culture plates are deposited by plasma polymerization of (3‐aminopropyl)triethoxysilane using an atmospheric pressure plasma jet system at three different power levels. Surface characterizations and quantification of biofilm formation during 1 week after deposition suggest that the higher concentration of oxygenated carbon groups on the coated samples than on uncoated ones can induce higher levels of oxidative stress in the bacteria in contact with the coatings. This causes an initial overproduction of extracellular polymeric substances that can avoid further bacterial attachment and biofilm formation at later cycles of biofilm development.

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“…The peak area of C-O for PET also decreased. The uctuation of the proportions of C=O and C-O bonds can be attributed to the additives in the polymer or the partial oxidation of the surface of the microplastic PET [35]. It could also be the error of measurement or divided processing and calculation since XPS is a quality other than quantity technology in many cases.…”

Section: Impact Of Arti Cial Digestion On the Chemical Composition Of The Samples' Surfacementioning

confidence: 99%

Impact of Digestion on Surface Microstructures of Microplastics

Chen

Liu

et al. 2021

Preprint

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Recently, there have been more reports and concerns about microplastics from various media and journals in the world. Except for land and water pollutions, much attention has been given to the impact of microplastics on animal and human health. However, previous studies have shown that digestion could not affect the particles of various microplastics due to their stable behavior. This work focuses on the impact of artificial digestion on the surface microstructures of microplastics from well recognized popular sources such as PP, PE, PET, PS and PVC. SEM and AFM were used to study the impact of artificial digestion on the surface morphologies of microplastics; while ATR-FTIR and XPS were used to investigate the impact of artificial digestion on the chemical properties of the surface of the microplastics. There were no physical differences observed by both SEM and AFM. There were no significant chemical differences detected by both FTIR and XPS after treatment. The slight differences of resolved C1s spectra for PS and PET samples detected by XPS should be further investigated. The study results show that the digestion system could not decompose the microplastics. Generally, plastic particles are widely considered to be inert due to their low chemical reactivity.

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Surface composition XPS analysis of a plasma treated polystyrene: Evolution over long storage periods

Cited by 63 publications

References 27 publications

Superhydrophilic Polyurethane/Polydopamine Nanofibrous Materials Enhancing Cell Adhesion for Application in Tissue Engineering

Superhydrophilic Polyurethane/Polydopamine Nanofibrous Materials Enhancing Cell Adhesion for Application in Tissue Engineering

Inhibition of biofilm formation on polystyrene substrates by atmospheric pressure plasma polymerization of siloxane‐based coatings

Impact of Digestion on Surface Microstructures of Microplastics

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