Non-Thermal Plasma Surface Modification of Biodegradable Polymers

Morent, Rino

doi:10.5772/18407

Cited by 6 publications

(4 citation statements)

References 108 publications

(163 reference statements)

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“…4 ) with increasing polarity after plasma treatment, while partial recovery to their untreated state during 10 day storage in air was evidenced, in accordance with similar work of the literature. 46 In Fig. 5, the SPM image of surface for 180 s of etching time is presented; nanoindentation points were carefully selected after SPM imaging so as to obtain accurate results.…”

Section: Resultsmentioning

confidence: 99%

“…After plasma treatment in air, the concentration of C-O and O-C ¼ O groups increases, while the C-C and C-H functional groups decrease. 46 In Fig. 9, the hardness versus etching time for oxygen plasma etched PLA, at *100 nm of displacement, is presented.…”

Section: Resultsmentioning

confidence: 99%

“…air (so called hydrophobic recovery), and they will also undergo post-plasma oxidation reactions. 46 The etching rate (A ˚min 21 ) of a polymer largely depends on the plasma treatment conditions (e.g. discharge gas, pressure, discharge power, substrate temperature and treatment time) and on the polymer's chemical and physical properties.…”

Section: Introductionmentioning

confidence: 99%

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Nanomechanical properties of plasma treated polylactic acid

Koumoulos

Valentin

Dragatogiannis

et al. 2015

Plastics, Rubber and Composites

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In this work, a radio frequency discharged plasma generated in air atmosphere by pressure has been used to modify polylactic acid (PLA) surface. The results were evaluated through nanoindentation testing. Contact angle measurements revealed a gradual transition to a more hydrophilic state with increasing polarity after plasma treatment, while partial recovery to their untreated state during 10 day storage in air was evidenced. The results were evaluated through nanoindentation testing. All PLA samples exhibited an almost hard-like surface area where hardness and elastic modulus are enhanced. The activity of the plasma creates a higher cross-linking density within the material in the surface region. For higher displacements, both H and E tend to reach pristine PLA's values. Hardness values reveal surface hardening due to plasma treatment except for 180 s etching time, where hardness is slightly decreased possibly due to surface deformation. The change of H/E slope reveals the strengthening of oxygen plasma etched PLA with 180 s of etching time with increasing displacement.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Nanomechanical properties of plasma treated polylactic acid

Koumoulos

Valentin

Dragatogiannis

et al. 2015

Plastics, Rubber and Composites

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“…In this Review, we highlight research from the past decade (2010–2020) on nonthermal RF plasma modification of polymer surfaces for biomedical applications (Figure ). Although nonthermal plasma strategies have been explored for polymer surface modification well before 2010 (as has been summarized in previously published reviews and book chapters), − the synergy between those strategies and the field of biomaterials has grown considerably over the past decade. More specifically, Web of Science lists over 1000 entries for the search terms “plasma surface modification + polymer + bio*” from 2010 to 2020, more than double that from the previous decade.…”

Section: Introductionmentioning

confidence: 99%

Utilizing Radio Frequency Plasma Treatment to Modify Polymeric Materials for Biomedical Applications

Morelli

Hawker

2021

ACS Biomater. Sci. Eng.

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Studies that utilize radio frequency plasma modification as a strategy to tune the surface properties of polymeric constructs with the goal of enhancing their use as biomedical devices have grown considerably in number over the past decade. In this Review, we present the importance of plasma surface treatment to biomedical applications, including tissue engineering and wound healing. First, we introduce several key polymeric materials of interest for use as biomaterials, including those that are naturally derived and synthetic. We, then, provide an overview of possible outcomes of plasma modification, such as surface activation, etching, and deposition of a thin film, all of which can be used to alter the surface properties of a given polymer. Following this discussion, we review the methods used to characterize plasma-treated polymer surface properties, as well as the techniques used to evaluate their interactions with biological species of interest such as mammalian cells, bacteria, and blood components. To close, we provide a perspective on future outlooks of this exciting and rapidly evolving field.

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