Plasma polymer for enhancing adhesion bonds of a metal/elastomer assembly

2021 ◽  
Author(s):  
Marisol Ji ◽  
Lazhar Benyahia ◽  
Fabienne Poncin‐Epaillard
Keyword(s):  
Plasma Polymer

scholarly journals Bioactive Plasma Coatings on Orthodontic Brackets: In Vitro Metal Ion Release and Cytotoxicity

Coatings ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 857
Author(s):  
Lasni Samalka Kumarasinghe ◽  
Neethu Ninan ◽  
Panthihage Ruvini Lakshika Dabare ◽  
Alex Cavallaro ◽  
Esma J. Doğramacı ◽  
...  
Keyword(s):  
Metal Ion ◽  
Prolonged Exposure ◽  
Orthodontic Brackets ◽  
Plasma Polymer ◽  
Functional Coatings ◽  
Key Factors ◽  
Ion Release ◽  
Metal Ion Release ◽  
Surface Functionalisation

The metal ion release characteristics and biocompatibility of meta-based materials are key factors that influence their use in orthodontics. Although stainless steel-based alloys have gained much interest and use due to their mechanical properties and cost, they are prone to localised attack after prolonged exposure to the hostile oral environment. Metal ions may induce cellular toxicity at high dosages. To circumvent these issues, orthodontic brackets were coated with a functional nano-thin layer of plasma polymer and further immobilised with enantiomers of tryptophan. Analysis of the physicochemical properties confirmed the presence of functional coatings on the surface of the brackets. The quantification of metal ion release using mass spectrometry proved that plasma functionalisation could minimise metal ion release from orthodontic brackets. Furthermore, the biocompatibility of the brackets has been improved after functionalisation. These findings demonstrate that plasma polymer facilitated surface functionalisation of orthodontic brackets is a promising approach to reducing metal toxicity without impacting their bulk properties.

scholarly journals Deposition of 2‐oxazoline‐based plasma polymer coatings using atmospheric pressure helium plasma jet

2019 ◽  
Vol 16 (10) ◽  
pp. 1900104 ◽  
Author(s):  
Sameer A. Al‐Bataineh ◽  
Alex A. Cavallaro ◽  
Andrew Michelmore ◽  
Melanie N. Macgregor ◽  
Jason D. Whittle ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Plasma Jet ◽  
Polymer Coatings ◽  
Plasma Polymer ◽  
Helium Plasma

Surface Immobilization of Synthetic Proteins Via Plasma Polymer Interlayers

1998 ◽  
Vol 544 ◽  
Author(s):  
Hans J Griesser ◽  
Keith M McLean ◽  
Gerrit J Beumer ◽  
Xiaoyi Gong ◽  
Peter Kingshot ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Cell Attachment ◽  
Plasma Layer ◽  
Polymeric Materials ◽  
Covalent Immobilization ◽  
Biologically Active ◽  
Plasma Polymer ◽  
Rf Plasma ◽  
Bulk Materials ◽  
Synthetic Proteins

AbstractCoatings of biologically active molecules on synthetic ”bulk“materials are of much interest for biomedical applications since they can in principle elicit specific, predictable. controlled responses of the host environment to an implanted device. However, issues such as shelf life. storage conditions, biological safety, and enzymatic attack in the biological environment must be considered; synthetic proteins may offer advantages. In this study we investigated the covalent immobilization onto polymeric materials of synthetic proteins which possess some properties that mimic those of the natural protein collagen, particularly the ability to form triple helical structures, and thus may provide similar bio-responses while avoiding enzymatic degradation. In order to perform immobilization of these collagen-like molecules (CLMs) under mild reaction conditions, the bulk materials are first equipped with suitable surface groups using rf plasma methods. Plasma polymer interlayers offer advantages as versatile reactive platforms for the immobilization of proteins and other biologically active molecules. Application of a thin plasma polymer coating from an aldehyde monomer is particularly suitable as it enables direct immobilization of CLMs by reaction with their terminal amine groups, using reductive amination chemistry. An alternative route is via plasma polymer layers that contain carboxylic acid groups and using carbodiimnide chemistry. A third route makes use of alkylamme plasma polymer interlayers, which are less process sensitive than aldehyde and acid plasma coatings. A layer of poly-carboxylic acid compounds such as carboxylic acid terminated PAMAM-starburst dendrimers or carboxymethylated dextran is then attached by carbodiimide chemistry onto the amine plasma layer. Amine-terminated CLMs can then be immobilized onto the poly-carboxylic acid layer. Surface analytical methods have been used to characterize the immobilization steps and to assess the surface coverage. Initial cell attachment and growth assays indicate that the biological performance of the CLMs depends on their amino acid sequence.

Allylamine Plasma Polymer Coatings of Interior Surfaces in Small Trench Structures

2008 ◽  
Vol 5 (1) ◽  
pp. 105-112 ◽  
Author(s):  
Wilfried Besch ◽  
Rüdiger Foest ◽  
Karsten Schröder ◽  
Andreas Ohl
Keyword(s):  
Polymer Coatings ◽  
Plasma Polymer

Metal clusters in plasma polymer matrices

2002 ◽  
Vol 4 (11) ◽  
pp. 2438-2442 ◽  
Author(s):  
Dirk Salz ◽  
Michael Wark ◽  
Alfred Baalmann ◽  
Ulrich Simon ◽  
Nils Jaeger
Keyword(s):  
Metal Clusters ◽  
Polymer Matrices ◽  
Plasma Polymer

Enhanced moisture-barrier property of a hybrid nanolaminate composed of aluminum oxide and plasma polymer

2014 ◽  
Vol 134 ◽  
pp. 142-145 ◽  
Author(s):  
Seung-Woo Seo ◽  
Kyu-Hyun Hwang ◽  
Eun Jung ◽  
Sang Joon Seo ◽  
Heeyeop Chae ◽  
...  
Keyword(s):  
Aluminum Oxide ◽  
Barrier Property ◽  
Plasma Polymer ◽  
Moisture Barrier ◽  
Moisture Barrier Property
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