Chemical characterization of plasma-activated polymeric surfaces via XPS analyses: A review

Ghobeira, Rouba; Tabaei, Parinaz Saadat Esbah; Morent, Rino

doi:10.1016/j.surfin.2022.102087

Cited by 53 publications

(35 citation statements)

References 144 publications

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“…The satellite peaks were located on the high energy side. 41 The binding energies of La 3d 3/2 and La 3d 5/2 differed by 17 eV. The difference between the peaks at low energies and the satellite peaks at high energies was 3.5 eV, which is consistent with the characteristics of La 3+ .…”

Section: Resultssupporting

confidence: 71%

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Construction of Lanthanide Magnetic Bio-Based Porous Carbon Materials with Beam and Column Structure and Its Synergistic Adsorption Performance

Zhang,

Guo,

Jia

et al. 2023

ACS Appl. Mater. Interfaces

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Biochar porous carbon material (BPCM) has extraordinary adsorption properties and is being widely used in different fields around the world. The pore structure of BPCM is liable to collapse, and mechanical properties are inferior; hence, the focus is on developing a new ″powerful″ structure of functional BPCM. Rare earth elements with characteristic f orbitals are used as pore and wall strengthening units in this work. The new ″beam and column structure″ BPCM was synthesized by the aerothermal method, and then, the magnetic BPCM was prepared. The results showed that the designed synthesis route was reasonable, BPCM with a steady-state beam and column structure was attained, and the La element played a stabilizing role in maintaining the overall BPCM. The La hybridization exhibits the characteristic of ″the stronger column and weaker beam″, and the La group is the ″column″ to strengthen the BPCM as the ″beam″. The functionalized BPCM (lanthanum-loaded magnetic chitosan-based porous carbon materials, MCPCM@La2O2CO3) obtained exhibited a transcendent efficient adsorption capacity with an average adsorption rate of 6.640 mg·g–1·min–1 and over 85% removal of different types of dye pollutants, which exceeded the adsorption performance of the materials of most other BPCMs. Ultrastructural analysis revealed that MCPCM@La2O2CO3 has a huge specific surface area of 1458.513 m2·g–1 and a magnetization value of 16.560 emu·g–1 for MCPCM@La2O2CO3. A new theoretical model for the adsorption of MCPCM@La2O2CO3 (multiple adsorption coexistence equation) was established. The theoretical equations clarify that the mechanism of pollutant removal by MCPCM@La2O2CO3 is different from the traditional adsorption model, presenting a mechanism of coexistence of multiple adsorption types, displaying a monolayer–multilayer adsorption mechanism, influenced by the synergistic effects of H bonding, electrostatic attraction, π–π conjugation, and ligand interaction. The rapid coordination of the d orbitals of La is an obvious factor in enhancing the adsorption efficiency.

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Section: Resultssupporting

confidence: 71%

“…Such bimodal peaks are used in Figure to be present in the La 3d orbitals of La 2 O 2 . The satellite peaks were located on the high energy side . The binding energies of La 3d 3/2 and La 3d 5/2 differed by 17 eV.…”

Section: Resultsmentioning

confidence: 92%

Construction of Lanthanide Magnetic Bio-Based Porous Carbon Materials with Beam and Column Structure and Its Synergistic Adsorption Performance

Zhang,

Guo,

Jia

et al. 2023

ACS Appl. Mater. Interfaces

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“…Since the PLA/PDAEA scaffold showed a water contact angle similar to that obtained of pristine PLA (about 120°), scaffolds were treated with cold plasma at low pressure of N 2 in order to increase their wettability. It is reasonable to suppose that, because of the use of N 2 , the scaffold surface is functionalized with amine groups [ 48 , 49 , 50 ], which contributed to provide hydrophilic properties to the electrospun fibers, increasing their wettability.…”

Section: Resultsmentioning

confidence: 99%

Developing Antibiofilm Fibrillar Scaffold with Intrinsic Capacity to Produce Silver Nanoparticles

Pitarresi

Barberi

Palumbo

et al. 2022

IJMS

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The development of biomedical systems with antimicrobial and antibiofilm properties is a difficult medical task for preventing bacterial adhesion and growth on implanted devices. In this work, a fibrillar scaffold was produced by electrospinning a polymeric organic dispersion of polylactic acid (PLA) and poly(α,β-(N-(3,4-dihydroxyphenethyl)-L-aspartamide-co-α,β-N-(2-hydroxyethyl)-L-aspartamide) (PDAEA). The pendant catechol groups of PDAEA were used to reduce silver ions in situ and produce silver nanoparticles onto the surface of the electrospun fibers through a simple and reproducible procedure. The morphological and physicochemical characterization of the obtained scaffolds were studied and compared with virgin PLA electrospun sample. Antibiofilm properties against Pseudomonas aeruginosa, used as a biofilm-forming pathogen model, were also studied on planar and tubular scaffolds. These last were fabricated as a proof of concept to demonstrate the possibility to obtain antimicrobial devices with different shape and dimension potentially useful for different biomedical applications. The results suggest a promising approach for the development of antimicrobial and antibiofilm scaffolds.

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“…To distinguish the distinct functional groups created in this work, high-resolution N1 s spectra of APPJ/DBD-treated PLA were curve-fitted as shown in Figure S3 . It should be noted that the positioning of similar nitrogen-bonded component peaks within the N1s envelope shows a lot of inconsistencies in literature, i.e., one can observe some discrepancies in binding energies in different publications [ 68 ]. The binding energies adopted in this work were the most consistently reported in literature: primary amine, secondary amine, amide and charged amine peaks were positioned at 398.7 eV, 400.0 eV, 400.9 eV and 401.6 eV, respectively [ 63 , 64 ] ( Table S1 ).…”

Section: Resultsmentioning

confidence: 99%

Polylactic Acid/Polyaniline Nanofibers Subjected to Pre- and Post-Electrospinning Plasma Treatments for Refined Scaffold-Based Nerve Tissue Engineering Applications

et al. 2022

Self Cite

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Composite biopolymer/conducting polymer scaffolds, such as polylactic acid (PLA)/ polyaniline (PAni) nanofibers, have emerged as popular alternative scaffolds in the electrical-sensitive nerve tissue engineering (TE). Although mimicking the extracellular matrix geometry, such scaffolds are highly hydrophobic and usually present an inhomogeneous morphology with massive beads that impede nerve cell-material interactions. Therefore, the present study launches an exclusive combinatorial strategy merging successive pre- and post-electrospinning plasma treatments to cope with these issues. Firstly, an atmospheric pressure plasma jet (APPJ) treatment was applied on PLA and PLA/PAni solutions prior to electrospinning, enhancing their viscosity and conductivity. These liquid property changes largely eliminated the beaded structures on the nanofibers, leading to uniform and nicely elongated fibers having average diameters between 170 and 230 nm. After electrospinning, the conceived scaffolds were subjected to a N2 dielectric barrier discharge (DBD) treatment, which significantly increased their surface wettability as illustrated by large decreases in water contact angles for values above 125° to values below 25°. X-ray photoelectron spectroscopy (XPS) analyses revealed that 3.3% of nitrogen was implanted on the nanofibers surface in the form of C–N and N–C=O functionalities upon DBD treatment. Finally, after seeding pheochromocytoma (PC-12) cells on the scaffolds, a greatly enhanced cell adhesion and a more dispersive cell distribution were detected on the DBD-treated samples. Interestingly, when the APPJ treatment was additionally performed, the extension of a high number of long neurites was spotted leading to the formation of a neuronal network between PC-12 cell clusters. In addition, the presence of conducting PAni in the scaffolds further promoted the behavior of PC-12 cells as illustrated by more than a 40% increase in the neurite density without any external electrical stimulation. As such, this work presents a new strategy combining different plasma-assisted biofabrication techniques of conducting nanofibers to create promising scaffolds for electrical-sensitive TE applications.

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Chemical characterization of plasma-activated polymeric surfaces via XPS analyses: A review

Cited by 53 publications

References 144 publications

Construction of Lanthanide Magnetic Bio-Based Porous Carbon Materials with Beam and Column Structure and Its Synergistic Adsorption Performance

Construction of Lanthanide Magnetic Bio-Based Porous Carbon Materials with Beam and Column Structure and Its Synergistic Adsorption Performance

Developing Antibiofilm Fibrillar Scaffold with Intrinsic Capacity to Produce Silver Nanoparticles

Polylactic Acid/Polyaniline Nanofibers Subjected to Pre- and Post-Electrospinning Plasma Treatments for Refined Scaffold-Based Nerve Tissue Engineering Applications

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