Surface modification of polymeric substrates by plasma-based ion implantation

Okuji, S.; Sekiya, Mitsuaki; Nakabayashi, Masahito; Endo, H.; Sakudo, N.; Nagai, Kazukiyo

doi:10.1016/j.nimb.2005.08.153

Cited by 21 publications

(9 citation statements)

References 6 publications

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“…Moreover, The Linear Energy Transfer (LET) was calculated on the basis of nitrogen ion penetration into the PET raw material. Simulating 1 keV of nitrogen ion energy, the maximum ions penetration is less than 200 Angstrom (target depth), owing to the energy loss, which can be estimated by the application of a modified Kinchin-Pease model of recoils [55,56], and a phenomenological model based on formulas from Lindhard, Scharff and Schiott (LSS) and Brandt-Kitagawa theories for electronic stopping [57].…”

Section: Srim Simulationmentioning

confidence: 99%

Surface Properties and Morphology of PET Treated by Plasma Immersion Ion Implantation for Food Packaging

SantAna¹

2018

NNOA

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In this work, surface properties of PET (Polyethylene Terephthalate) modified by Plasma Immersion (PI), and Plasma Immersion Ion Implantation (PIII) were studied. Nitrogen and sulfur hexafluoride plasmas were used in a vacuum system coupled to a radiofrequency (rf) generator (13.56 MHz). Infrared spectroscopy (ATR-FTIR) detected the presence of new molecular groups on the PET surface after the treatment. Measurements of the contact angle, Ɵ, revealed a strong dependence of the surface wettability on the plasma parameters, control of which allows the production of hydrophilic or hydrophobic surfaces. The ion fluence was modelled as function of the penetration depth using suitable software (SRIM 2008) and is useful to understand the damage caused by ion implantation of the PET (ρ = 1.39 g/cm 3). The optical transmittance of the treated material in the visible region, T (λ), depends on the gas used and the electrical configuration of the plasma. Water-vapor transmission rate (WVTR) revealed an increase in the barrier properties of the treated PET. PIII technique and N2 bombardment are more appropriate than plasma immersion and SF6 bombardment to increase T (λ) of PET in the visible region.

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Section: Srim Simulationmentioning

confidence: 99%

Surface Properties and Morphology of PET Treated by Plasma Immersion Ion Implantation for Food Packaging

SantAna¹

2018

NNOA

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“…PIII is superior to conventional beam-line ion implantation when dealing with specimens of irregular shape [1,2]. For instance, it has been successfully applied for the inner surface modification of polyethylene terephthalate (PET) bottles, and the gas-barrier property of the PET was improved greatly [3][4][5]. However, PIII of the interior of cylindrical tubes, especially ones that are electrically insulating materials, is technically difficult.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of plasma immersion ion implantation on the inner surface of a cylindrical dielectric target

Wang

2013

Surface and Coatings Technology

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“…Functionalization of such surface is therefore necessary. Oxygen plasma or UV/ozone treatment results in a formation of thin, oxidized and hydrophilic layer, which can be used to adsorb proteins and oligonucleotides [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

PECVD coatings for functionalization of point-of-care biosensor surfaces

Gandhiraman

Gubala

O’Mahony

et al. 2012

Vacuum

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In early stage disease diagnosis, an accurate and reliable measurement of low concentrations of specific biomarkers is a key need. The detection technique requires the reaction of an antibody, which is generally covalently bound to the biosensor platform, with its antigen. The application of Zeonor®, a cyclo olefin copolymer (COP) with very low autofluorescence, good optical properties and high precision molding characteristics, as a biosensor platform has been demonstrated recently. Highly reproducible, industrial scale surface chemical modification of the COP plastic for covalent attachment of the biomolecules for specific recognition of the target, together with low non specific binding of other proteins that may be present in the sample is a key challenge. In this work, the applicability of plasma enhanced chemical vapor deposition (PECVD) process has been demonstrated by depositing varying surface functionalities including amines, carboxylic, mercapto, epoxy and polyethylene glycol functionalities.The plasma functionalized coatings thus created possess both reactive and repellent sites on the biosensor chip, allowing the chip to be configured either for fluorescence or light scattering-based detection or for label-free surface plasmon resonance detection techniques. The versatility of the gas phase deposition process for building sequential chemistries on low cost and disposable plastic chips is presented in detail. * Corresponding Author: Vladimir.gubala@dcu.ie , Ph: +35317006337 IntroductionWith parameters. The effect of ion bombardment on the growing film and the plasma electron density are crucial and could lead to dissociation of functional groups in the plasma as well as on the growing film. In this article, synthetic approaches for modification of COP substrates with -NH 2 and -SH functional groups will be discussed. Perhaps more importantly, we will also provide a review on the analytical tools used to assess the quality of the prepared films. For a design of sensitive bioassay device, it is critical to understand interaction forces in real systems, and how these relate on the one hand to the surface composition and chemistry, and on the other hand to the specificity, sensitivity and resistance to non-specific binding. 2.Materials and methods Plasma Enhanced Chemical Vapor DepositionThe vacuum chamber is an aluminum based container. The pressure in the chamber was measured using a Granville-Phillips gauge. An Edwards EH mechanical booster pump backed by an Edwards E1M40 rotary pump was used to pump down the chamber.The rotary pump was connected through a port at the bottom of the chamber.The powered electrode, 24cm x 21cm plate with a 6cm diameter with a hole in the middle, was placed slightly below the top of the chamber and the chamber wall was grounded. The powered electrode is cooled with running water. Also a 24cm X 21cm X 1.2cm electrically isolated, water cooled hollow metallic setup placed 10 cm away from the powered electrode is used as the substrate holder. The powered electrod...

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Surface modification of polymeric substrates by plasma-based ion implantation

Cited by 21 publications

References 6 publications

Surface Properties and Morphology of PET Treated by Plasma Immersion Ion Implantation for Food Packaging

Surface Properties and Morphology of PET Treated by Plasma Immersion Ion Implantation for Food Packaging

Numerical simulation of plasma immersion ion implantation on the inner surface of a cylindrical dielectric target

PECVD coatings for functionalization of point-of-care biosensor surfaces

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