Cold Plasma Systems and Their Application in Surface Treatments for Medicine

Tabarés, F.L.; Junkar, Ita

doi:10.3390/molecules26071903

Cited by 89 publications

(48 citation statements)

References 47 publications

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“…The phrase “plasma treatment” summarizes numerous methods/processes that generate (partially) ionized gas and/or radicals, which are frequently applied to various materials for surface modification, for example, for surface hydrophilization. [ 8,9 ] However, plasma processes often require specialized devices to provide either low ambient pressure (or even vacuum) [ 8 ] or high treatment temperatures (greater than or equal to several hundred degrees Celsius) [ 9 ] , and these harsh conditions are not always suitable. For instance, when the inside of a hollow, flexible sample (like a balloon) or temperature‐sensitive materials (i.e., most polymeric materials based on, e.g., polymethylmethacrylate, polystyrene, or polyvinylchloride) is to be treated, a different approach needs to be chosen.…”

Section: Introductionmentioning

confidence: 99%

Wetting behavior and stability of surface‐modified polyurethane materials

Bauer

Reithmeir

Lutz

et al. 2021

Plasma Processes & Polymers

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Even though polyurethanes (PU) constitute a class of highly versatile and customizable polymeric materials, being able to modify their surface properties, for example, their wettability, without altering the composition of the bulk material would often be desirable. However, PU‐based materials can be both rather diverse and resilient to chemical modification. Thus, in this study, three PU variants are subjected to three different treatments that aim at altering the wetting properties of the materials: We assess the feasibility of plasma treatment, dopamine incubation, and chemical etching, and evaluate the stability of the obtained surface modifications with regard to wet and dry storage, UV exposure, and application‐specific properties such as lubricity and colonization with eukaryotic cells. The results obtained here can be used to achieve an additional customization of PU surfaces to tailor their behavior for selected applications where dedicated surface properties are required.

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Section: Introductionmentioning

confidence: 99%

Wetting behavior and stability of surface‐modified polyurethane materials

Bauer

Reithmeir

Lutz

et al. 2021

Plasma Processes & Polymers

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“…The surface modification of polymer films by plasma is the most effective method of uniform and controlled treatment. The surface energy of the films is controlled to enhance the wettability and adhesion of coatings by plasma treatment under different processing conditions [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Different Plasma Cell Discharges on the Performance Quality of Surgical Gown Samples

Asghar

Galaly

2021

Materials

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An experimental study was performed on a low-density plasma discharge using two different configurations of the plasma cell cathode, namely, the one mesh system electrodes (OMSE) and the one mesh and three system electrodes (OMTSE), to determine the electrical characteristics of the plasma such as current–voltage characteristics, breakdown voltage (VB), Paschen curves, current density (J), cathode fall thickness (dc), and electron density of the treated sample. The influence of the electrical characteristics of the plasma fluid in the cathode fall region for different cathode configuration cells (OMSE and OMTSE) on the performance quality of a surgical gown was studied to determine surface modification, treatment efficiency, exposure time, wettability property, and mechanical properties. Over a very short exposure time, the treatment efficiency for the surgical gown surface of plasma over the mesh cathode at a distance equivalent to the cathode fall distance dc values of the OMTSE and for OMSE reached a maximum. The wettability property decreased from 90 to 40% for OMTSE over a 180 s exposure time and decreased from 90 to 10% for OMSE over a 160 s exposure time. The mechanisms of each stage of surgical gown treatment by plasma are described. In this study, the mechanical properties of the untreated and treated surgical gown samples such as the tensile strength and elongation percentage, ultimate tensile strength, yield strength, strain hardening, resilience, toughness, and fracture (breaking) point were studied. Plasma had a more positive effect on the mechanical properties of the OMSE reactor than those of the OMTSE reactor.

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“…Compared with most other treatments, a significant advantage of plasma surface modification, compared with most other treatments, is that it is free of harmful sub-products from the operation process and does not destroy the bulk structure of materials [ 37 , 42 , 43 ]. To enhance the different applications of materials, surface modification plays a critical role in various fields such as optical, electronics, automotive, aerospace, textile industry, packaging technology, 3D printing, pharmaceutical, and medical [ 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 ].…”

Section: Introductionmentioning

confidence: 99%

Surface Modification of Bamboo Charcoal by O2 Plasma Treatment and UV-Grafted Thermo-Sensitive AgNPs Hydrogel to Improve Antibacterial Properties in Biomedical Application

Liu

Liao

2021

Nanomaterials

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With the advancement of science and modern medical technology, more and more medical materials and implants are used in medical treatment and to improve human life. The safety of invasive medical materials and the prevention of infection are gradually being valued. Therefore, avoiding operation failure or wound infection and inflammation caused by surgical infection is one of the most important topics in current medical technology. Silver nanoparticles (AgNPs) have minor irritation and toxicity to cells and have a broad-spectrum antibacterial effect without causing bacterial resistance and other problems. They are also less toxic to the human body. Bamboo charcoal (BC) is a bioinert material with a porous structure, light characteristics, and low density, like bone quality. It can be used as a lightweight bone filling material. However, it does not have any antibacterial function. This study synthesized AgNPs under the ultraviolet (UV) photochemical method by reducing silver nitrate with sodium citrate. The formation and distribution of AgNPs were confirmed by UV-visible spectroscopy and X-ray diffraction measurement (XRD). The BC was treated by O2 plasma to increase the number of polar functional groups on the surface. Then, UV light-induced graft polymerization of N-isopropyl acrylamide (NIPAAm) and AgNPs were applied onto the BC to immobilize thermos-/antibacterial composite hydrogels on the BC surface. The structures and properties of thermos-/antibacterial composite hydrogel-modified BC surface were characterized by Scanning Electron Microscopy (SEM), Fourier Transform Infrared spectrum (FT-IR), and X-ray photoelectron spectroscopy (XPS). The results show that thermos-/antibacterial composite hydrogels were then successfully grafted onto BC. SEM observations showed that the thermos-/antibacterial composite hydrogels formed a membrane structure between the BC. The biocompatibility of the substrate was evaluated by Alamar Blue cell viability assay and antibacterial test in vitro.

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Cold Plasma Systems and Their Application in Surface Treatments for Medicine

Cited by 89 publications

References 47 publications

Wetting behavior and stability of surface‐modified polyurethane materials

Wetting behavior and stability of surface‐modified polyurethane materials

The Influence of Different Plasma Cell Discharges on the Performance Quality of Surgical Gown Samples

Surface Modification of Bamboo Charcoal by O2 Plasma Treatment and UV-Grafted Thermo-Sensitive AgNPs Hydrogel to Improve Antibacterial Properties in Biomedical Application

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