Recent Advancements in the Use of Aerosol-Assisted Atmospheric Pressure Plasma Deposition

Palumbo, Fabio; Porto, Chiara Lo; Fracassi, Francesco; Favia, Pietro

doi:10.3390/coatings10050440

Cited by 43 publications

(46 citation statements)

References 113 publications

(135 reference statements)

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“…The deposition of PEO-like coatings, in aerosol, assisted DBD, produces rough coatings in our experimental conditions, probably due to the contribution of aerosol droplets to the polymerization or deposition of the monomer vapors that can lead to the formation of aggregates. [35,36]. Stallard et al [37] deposited PEO-like coatings on Si wafer surface using TEGDME and diethylene glycol vinyl ether monomers in a non-equilibrium AP plasma jet and reported the formation of particulate in the process as a result of a high degree of polymerization.…”

Section: Discussionmentioning

confidence: 99%

How to Confer a Permanent Bio-Repelling and Bio-Adhesive Character to Biomedical Materials through Cold Plasmas

et al. 2020

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Plasma Enhanced–Chemical Vapor Deposition (PE-CVD) of polyethylene oxide-like (PEO)-like coatings represent a successful strategy to address cell-behavior on biomaterials. Indeed, one of the main drawbacks of organic and hydrophilic films, like PEO-like ones, often consists in their poor adhesion to the substrate, especially in biological fluids where the biomaterial is required to operate. In this paper, low pressure (LP) and aerosol-assisted atmospheric pressure (aerosol-assisted AP) PE-CVD of PEO-like coatings is compared. The stability of the two different classes of coatings was investigated, both in water and in the cell culture media, during cell culture experiments. The obtained results show that, when deposited at atmospheric pressure (AP), the adhesion of the PEO-like coatings to the substrate has to be granted by an intermediate gradient layer. This interlayer can match the properties of the substrate with that of the topmost coatings, and, in turn, can dramatically improve the coating’s stability in complex biological fluids, like the cell culture medium. An accurate modulation of the experimental conditions, both at LP and AP, allowed control of the film chemical structure and surface properties, to permanently promote or discourage the cellular adhesion on the surfaces of biomaterials.

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Section: Discussionmentioning

confidence: 99%

How to Confer a Permanent Bio-Repelling and Bio-Adhesive Character to Biomedical Materials through Cold Plasmas

et al. 2020

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“…The recently developed aerosol-assisted plasma deposition approach has also shown high potential for the simple fabrication of antimicrobial agent release surfaces [27 ].…”

Section: Reactive Agent Release Surfacesmentioning

confidence: 99%

Plasma for biomedical decontamination: from plasma-engineered to plasma-active antimicrobial surfaces

Nikiforov

Morent

et al. 2022

Current Opinion in Chemical Engineering

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Modern society is suffering from many infectious microbes. Developing antimicrobial surfaces for biomedical decontamination and sterilization is one of the strategic solutions to mitigate the spread of infectious pathogens. Here, we outline the paradigm of plasmas for biomedical decontamination by presenting approaches of plasmaengineered antimicrobial surfaces and novel plasma-active antimicrobial surfaces. Low-temperature plasma can not only be used as a material fabrication tool for antimicrobial surface engineering but also be used directly for microbial inactivation by specially designed plasma-active surfaces that can effectively destroy microorganisms through exposure to plasma. The role of plasmas in the two different kinds of antimicrobial surfaces is discussed along with their associated advantages and disadvantages. Future research directions, challenges, and opportunities in both plasma-based antimicrobial surfaces are also critically evaluated. This analysis contributes to the development of next-generation antimicrobial surfaces for future bio-safety.

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“…In either case, the precursor is introduced into the gas discharge for the polymerization and direct deposition on the substrate. In recent studies, the precursor monomer is not introduced into the plasma, but deposited on the substrate and subsequently polymerized by atmospheric pressure plasmas [11][12][13][14][15]. Compared to gas-phase processes, liquid processes require a liquid handling technology to dispense the fluid homogeneously on the substrate.…”

Section: Introductionmentioning

confidence: 99%

Functional Thin Films Synthesized from Liquid Precursors by Combining Mist Chambers and Atmospheric-Pressure Plasma Polymerization

Barillas¹,

Makhneva²,

An³

et al. 2021

Coatings

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For the creation of thin films, the use of precursors in liquid phase offers a viable alternative when these chemicals are sensitive to high temperatures and phase changes. However, it requires appropriate liquid handling and deposition technologies capable of dispensing the fluid homogeneously to produce a uniform thin film. We report different tailor-made mist chamber designs integrated in an atmospheric-pressure plasma polymerization process for the synthesis of functional thin polymer films from liquid precursors. A systematic investigation, evaluated by performance indicators, is presented on the characteristics and suitability of metallic 3D-printed mist chambers depending on inner volume, geometry and surface post-treatment, for the deposition of a thin liquid monomer film. To assess the quality of the subsequently obtained plasma-polymerized (pp) films, their properties were characterized in terms of thickness, chemical composition, surface morphology and stability in aqueous environment. It was found that the specification of the mist chambers along with the plasma process parameters influences the pp film’s thickness, surface morphology and degree of monomer conversion. This study is one of the first demonstrations of a controllable process able to tune the cross-linked polymeric chains of plasma-polymers at atmospheric pressure, highlighting the opportunities of using mist chambers and plasma technology to discover tailored organic thin films to materials sciences and life sciences.

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Recent Advancements in the Use of Aerosol-Assisted Atmospheric Pressure Plasma Deposition

Cited by 43 publications

References 113 publications

How to Confer a Permanent Bio-Repelling and Bio-Adhesive Character to Biomedical Materials through Cold Plasmas

How to Confer a Permanent Bio-Repelling and Bio-Adhesive Character to Biomedical Materials through Cold Plasmas

Plasma for biomedical decontamination: from plasma-engineered to plasma-active antimicrobial surfaces

Functional Thin Films Synthesized from Liquid Precursors by Combining Mist Chambers and Atmospheric-Pressure Plasma Polymerization

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