Sulfur hexafluoride plasma surface modification of Gly-Ala and Ala-Gly as Bombyx mori silk model compounds: Mechanism investigations

Sangprasert, Waleepan; Lee, Vannajan Sanghiran; Boonyawan, Dheerawan; Tashiro, Kohji; Nimmanpipug, Piyarat

doi:10.1016/j.molstruc.2009.10.025

Cited by 9 publications

(5 citation statements)

References 32 publications

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“…The result showed that a hydrogen abstraction reaction of radicals at methyl groups from alanine residue is the most preferable pathway in the plasma treatment process. 18,19) The interaction energy of water with the silk irradiated surface is higher than the un-irradiated silk surface and the MD also affirms the incorporation of phosphorus in the structure of silk. 18,20) Polymers such as epoxy resin have low surface free energy and therefore often require a modification of their surface properties before any use.…”

Section: Introductionmentioning

confidence: 75%

Epoxy Resin Surface Functionalization Using Atmospheric Pressure Plasma Jet Treatment

Sangprasert

Nimmanpipug

Yavirach

et al. 2012

Jpn. J. Appl. Phys.

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Atmospheric pressure plasma jet (APPJ) of N2 has been applied to promote adhesion between the epoxy resin post and composite core material due to the chemical active functional groups created. The APPJ was proved to be able to improve adhesive ability of the epoxy resin through the polar groups such as carbonyl group on its surface revealed by decreasing contact angle. The jet was generated from N2/Ar and N2/He gas mixture with ratio as low as 0.40–0.44 vol %, respectively. The optical emission spectrometry showed that the active species which could react with the substrate surface are nitrogen molecules and nitrogen molecules ion. The radial distribution functions (RDFs) calculations indicated that the most probable position of nitrogen active species reacting on the epoxy surface is at hydroxyl group with hydrogen bonding distance less than 35 nm.

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Section: Introductionmentioning

confidence: 75%

Epoxy Resin Surface Functionalization Using Atmospheric Pressure Plasma Jet Treatment

Sangprasert

Nimmanpipug

Yavirach

et al. 2012

Jpn. J. Appl. Phys.

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“…1. The crystal structures of untreated GA and AG and corresponding cell parameters using single crystal X-ray diffraction technique (Sangprasert et al, 2010).…”

Section: Plasma Jet Systemmentioning

confidence: 99%

Advanced Plasma Spray Applications

Jazi¹

2012

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IUT) with B.Sc. (1994) and M.Sc. (1999) in Materials Engineering Department. He received his PhD degree from the Department of Mechanical and Industrial Engineering at the University of Toronto in 2005. Before joining Isfahan University of Technology, he held postdoctoral and instructor positions at the Centre for Advanced Coating Technologies, University of Toronto and collaborated in some research projects with Pratt & Whitney Canada, GE Global research US, PyroGenesis Canada. He joined the Department of Materials Engineering at the Isfahan University of Technology in 2010. His main research interests are the study of thermal spray coatings, near-net shape forming of alloys, composites, and sandwich structures, thermal spray coatings for Solid Oxide Fuel Cells, and nano structure materials.

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“…Motivated by the fact that plasma treatments applied over polyethylene membrane separators improved the performance of LIBs [37,38], and also driven by the fact that the exposure of silk-based materials to several plasmas [39][40][41][42][43][44][45] exerted an important effect on the surface hydrophilicity, we decided to expose Bombyx mori silkworm cocoon separators to oxygen (O2) and nitrogen (N2) plasmas. The selection of these two reactive plasmas aimed at avoiding the introduction of different chemical species at the surface of the native protein fibers.…”

Section: Introductionmentioning

confidence: 99%

Plasma-treated Bombyx mori cocoon separators for high-performance and sustainable lithium-ion batteries

Pereira

Gonçalves

Correia

et al. 2020

Materials Today Sustainability

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Sulfur hexafluoride plasma surface modification of Gly-Ala and Ala-Gly as Bombyx mori silk model compounds: Mechanism investigations

Cited by 9 publications

References 32 publications

Epoxy Resin Surface Functionalization Using Atmospheric Pressure Plasma Jet Treatment

Epoxy Resin Surface Functionalization Using Atmospheric Pressure Plasma Jet Treatment

Advanced Plasma Spray Applications

Plasma-treated Bombyx mori cocoon separators for high-performance and sustainable lithium-ion batteries

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