Unravelling the origin of the capacitance in nanostructured nitrogen-doped carbon - NiO hybrid electrodes deposited with laser

Lebière, Pablo García; György, E.; Logofatu, C.; Naumenko, Denys; Amenitsch, Heinz; Rajak, Piu; Ciancio, Regina; Pino, A. Pérez del

doi:10.1016/j.ceramint.2022.02.128

Cited by 4 publications

(2 citation statements)

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“…The shape of the FTIR spectrum of GL-pDA-MAPLE does not present significant differences compared with that of the parent GL-pDA, indicating that the spectroscopic features of the hybrid material are overall preserved after the laser deposition. As observed in the case of the GL deposition upon MAPLE technique, the sharp signal attributed to the −NO 2 stretching vibration bands (around 1380 cm –1 ) is reduced, confirming also in this case a possible surface cleaning upon laser ablation as well as the instauration of reactive inverse matrix-assisted pulsed laser evaporation RIMAPLE phenomena …”

Section: Resultssupporting

confidence: 75%

“…As observed in the case of the GL deposition upon MAPLE technique, 17 the sharp signal attributed to the −NO 2 stretching vibration bands (around 1380 cm −1 ) is reduced, confirming also in this case a possible surface cleaning upon laser ablation as well as the instauration of reactive inverse matrix-assisted pulsed laser evaporation RIMAPLE phenomena. 39 The contributions of spectroscopic features from both PVP and GL are clearly discernible in the GL-PVP spectrum (Supporting Information, Figure S3). The shape of the FTIR spectrum of GL-PVP-MAPLE does not present significant differences compared with that of the parent GL-PVP, indicating also in this case that the spectroscopic features of the hybrid material are overall preserved after the laser deposition.…”

Section: Ftir Analysis Of the Gl-pda And Gl-pvp Filmsmentioning

confidence: 99%

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Biocompatible Hybrid Graphenic Thin Coatings on Flexible Substrates through Matrix-Assisted Pulsed Laser Evaporation (MAPLE)

Alfe,

Minopoli,

Tartaglia

et al. 2024

ACS Appl. Mater. Interfaces

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This work reports the production of biocompatible thin layers for biomedical applications based on a graphene-like material (GL), a graphene-related material (GRM) obtained from carbon black. GL was combined in a hybrid fashion with polydopamine (pDA), a mussel-inspired water-resistant wet adhesive bonding obtained by the oxidative polymerization of dopamine (DA), and polyvinyl pyrrolidinone (PVP), a nontoxic synthetic polymer with intrinsic adhesion properties, to obtain a tighter adhesion of the thin layer to the substrate (silicone slices). Matrix-assisted pulsed laser evaporation (MAPLE) was used to coat PDMS slices with thin films of GL-pDA and GL-PVP directly from their frozen suspensions in water. The results indicate that the relevant chemical−physical characteristics of both thin films (evidenced by FTIR and AFM) were maintained after MAPLE deposition and that the films exhibit uniformity also at the nanometric level. After deposition, the GL-pDA and GL-PVP films underwent a biological survey toward murine fibroblasts (NIH3T3), human keratinocytes (HaCAT), and human cervical adenocarcinoma epithelial-like (HeLa) cells to assess the feasibility of this approach. Results indicate that both the GL-pDA and GL-PVP films did not perturb the biological parameters evaluated, including cytoskeleton alterations. Both hybrid films enhanced the effects of GL on cellular vitality across all cell lines. Specifically, the GL-pDA film exhibited a more stable effect over time (up to 72 h), whereas the GL-PVP film behaved similarly to the GL film in NIH3T3 and HeLa cell lines after long-term exposure. These promising results make the GL-pDA and GL-PVP films potential candidates for the manufacture of coated flexible devices for biomedical applications.

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Section: Resultssupporting

confidence: 75%

Section: Ftir Analysis Of the Gl-pda And Gl-pvp Filmsmentioning

confidence: 99%