Active-screen plasma surface multi-functionalisation of biopolymers and carbon-based materials – An overview

Dashtbozorg, Behnam; Tao, Xiao; Dong, Hanshan

doi:10.1016/j.surfcoat.2022.128188

Cited by 11 publications

(4 citation statements)

References 117 publications

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“…Thus, the plasma is formed on the active screen and the samples (GF separators) are at a floating potential, which can avoid the arcing problem on non‐conductive materials in conventional treatments. [ 20 ] To deposit the oxygen‐deficient SiO x , the Si vapor was produced in H 2 plasma with oxygen from residual air by ion bombardment on a Si wafer that was attached to the top of active screen. The digital photo shows that GF can be fully exposed to the active species in the glow (Figure S1, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Establishing an Ion‐Sieving Separator by Depositing Oxygen‐Deficient SiO_x Layer for Stabilized Zinc Metal Anode

Wang,

Tao

et al. 2023

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Stable plating/stripping of Zn metal anode remains a great challenge owing to uncontrollable dendrite growth and side reactions. Ion‐sieving separators is a unique and promising solution, that possess Zn2+ permeability and promote Zn2+ transport, can effectively alleviate the abovementioned problems. Ion‐sieving on glass fiber separator by deposition of oxygen‐deficient SiOx layer via active screen plasma technology is achieved. While having chemical composition similar to the glass fiber, the SiOx nanoparticles contain oxygen‐rich vacancies that promoted dissociation of the adsorbed water and generation of the hydroxyl groups. The negatively‐charged hydroxylated SiOx layer can repel SO42− and attract Zn2+, which can alleviate the side reactions. The strong interplay between hydroxyl groups and Zn2+ can boost Zn affinity and yield fast Zn2+ transport. Consequently, the SiOx‐deposited GF separator enabled dendrite‐free Zn deposition morphology, which displays lower overpotential of 18 mV and longer cycling life over 2000 h for Zn symmetric cell. Such a separator can also be easily scaled up to prepare the high‐performance large‐area (4 × 6 cm2) pouch Zn‐based devices, showing remarkable flexibility and practicality.

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Section: Resultsmentioning

confidence: 99%

Establishing an Ion‐Sieving Separator by Depositing Oxygen‐Deficient SiO_x Layer for Stabilized Zinc Metal Anode

Wang,

Tao

et al. 2023

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“…As a result, the ester bonds from the PAN polymer are integrated into the PVAG layer. This interaction modi es the vibration of the ester bonds, subsequently causing a discernible alteration in either the peak intensity or position observed within the ATR-FTIR spectrum [39][40][41] .…”

Section: Surface Chemistry Compositionmentioning

confidence: 99%

Enhancing Cell Growth with PAN/PVA-Gelatin 3D Scaffold: A Novel Approach using In-situ UV Radiation Electrospinning and Plasma Treatment

Khavari,

Jahanfar,

Anaghizi

et al. 2023

Preprint

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The hydrophobic nature of synthetic polymers poses a substantial barrier since it limits cell-seeding and proliferation scaffold performance. To overcome this challenge, the present research attempts to employ in-situ UV electrospinning and plasma surface modification techniques to fabricate a three-dimensional PAN/PVA-gelatin scaffold. The proposed scaffold holds great potential in mitigating hydrophobicity limitations, thereby facilitating enhanced cell adhesion and proliferation. The SEM results indicated that exposure to UV irradiation resulted in the formation of wavy shapes in the PAN microstructures and crosslinking between fibers within the scaffold. Moreover, plasma treatment induced the formation of pores on the PAN surface, with an average diameter of 43 µm, corresponding to the size range of mouse fibroblast cells. Furthermore, the plasma treatment provided roughness augmentation of the scaffold surface, which played a crucial role in enhancing cell adhesion and elongation on the modified scaffold surface. Comparatively, the plasma-modified scaffolds exhibited a higher proportion of viable cells than the unmodified scaffolds (p < 0.05). Moreover, the implementation of perforations in the PAN layer via plasma treatment reduced the number of necrosis cells in comparison to the other samples. In contrast, the unmodified scaffold showed a higher percentage of apoptosis cells (p < 0.05).

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“…Numerous studies have shown that plasma treatments are some of the most promising surface modification methods [ 9 , 10 ]. These techniques are capable of altering the physical and chemical properties of a material surface, thereby significantly enhancing the surface wettability and adhesion properties without influencing the bulk properties of the material [ 11 , 12 , 13 , 14 ]. Among the plasma treatments currently available, μPlasma surface modification is particularly interesting because, unlike traditional plasma treatments that require low-pressure conditions (typically 50–400 Pa) [ 15 ], μPlasma modifications can be performed under atmospheric conditions, thus significantly reducing the processing costs [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

The Ageing of μPlasma-Modified Polymers: The Role of Hydrophilicity

Che,

Dashtbozorg,

et al. 2024

Materials

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Thermoplastic polymers exhibit relatively limited surface energies and this results in poor adhesion when bonded to other materials. Plasma surface modification offers the potential to overcome this challenge through the functionalisation of the polymer surfaces. In this study, three polymers of differing hydrophobicity (HDPE, PA12, and PA6) were subjected to a novel, atmospheric, μPlasma surface treatment technique, and its effectiveness at increasing the surface energies was evaluated via measurement of the contact angle. To characterise the physical and chemical changes following μPlasma surface modification, the surface morphology was observed using atomic force microscopy (AFM), and the functionalisation of the surface was evaluated using infrared spectroscopy. Immediately after treatment, the contact angle decreased by 47.3° (HDPE), 42.6° (PA12), and 50.1° (PA6), but the effect was not permanent in that there was a pronounced relaxation or ageing phenomenon in operation. The ageing process over five hours was modelled using a modified stretched exponential function Kohlrausch–Williams–Watts (KWW) model, and it was found that the ageing rate was dependent on the hydrophilicity of polymers, with polyamides ageing more rapidly than polyethylene.

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Active-screen plasma surface multi-functionalisation of biopolymers and carbon-based materials – An overview

Cited by 11 publications

References 117 publications

Establishing an Ion‐Sieving Separator by Depositing Oxygen‐Deficient SiO_x Layer for Stabilized Zinc Metal Anode

Establishing an Ion‐Sieving Separator by Depositing Oxygen‐Deficient SiO_x Layer for Stabilized Zinc Metal Anode

Enhancing Cell Growth with PAN/PVA-Gelatin 3D Scaffold: A Novel Approach using In-situ UV Radiation Electrospinning and Plasma Treatment

The Ageing of μPlasma-Modified Polymers: The Role of Hydrophilicity

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Active-screen plasma surface multi-functionalisation of biopolymers and carbon-based materials – An overview

Cited by 11 publications

References 117 publications

Establishing an Ion‐Sieving Separator by Depositing Oxygen‐Deficient SiOx Layer for Stabilized Zinc Metal Anode

Establishing an Ion‐Sieving Separator by Depositing Oxygen‐Deficient SiOx Layer for Stabilized Zinc Metal Anode

Enhancing Cell Growth with PAN/PVA-Gelatin 3D Scaffold: A Novel Approach using In-situ UV Radiation Electrospinning and Plasma Treatment

The Ageing of μPlasma-Modified Polymers: The Role of Hydrophilicity

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Product

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Establishing an Ion‐Sieving Separator by Depositing Oxygen‐Deficient SiO_x Layer for Stabilized Zinc Metal Anode

Establishing an Ion‐Sieving Separator by Depositing Oxygen‐Deficient SiO_x Layer for Stabilized Zinc Metal Anode