Surface modification of atmospheric plasma activated BOPP by immobilizing chitosan

Vartiainen, Jari; Rättö, Marjaana; Tapper, Unto; Paulussen, Sabine; Hurme, Eero

doi:10.1007/s00289-005-0382-5

Cited by 51 publications

(26 citation statements)

References 35 publications

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“…In a study by Vartiainen and coworkers, polypropylene films were plasma activated and coupled to medium molecular weight chitosan. 45 The coupling involved plasma treatment with an NH 3 or CO 2 rich atmosphere, with the intent of creating amine and carboxylic acid groups on the polymer surface. Chitosan was coupled to the substrate by using either glutaraldehyde or EDC coupling chemistries, and the samples were characterized via FTIR, SEM, and contact angles.…”

Section: E Chitosanmentioning

confidence: 99%

“…Irreversible immobilization of the antimicrobial agents in the device offers an alternative motif that eliminates patient exposure to elutable active agents and potentially increases the duration of antimicrobial efficacy. 8,9 A wide range of antimicrobial agents have been immobilized, including small molecules (e.g., quaternary ammonium silanes), [10][11][12][13][14][15][16][17] quaternary ammonium polymers, [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35] polyamines, [36][37][38][39][40][41][42] chitosan, [43][44][45][46][47][48][49] enzymes, [50][51][52][53][54][55] peptides, and peptide mimetics. …”

Section: Introductionmentioning

confidence: 99%

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A review of immobilized antimicrobial agents and methods for testing

2011

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Antimicrobial surfaces for food and medical applications have historically involved antimicrobial coatings that elute biocides for effective kill in solution or at surfaces. However, recent efforts have focused on immobilized antimicrobial agents (iAMA) to avoid toxicity, compatibility and reservoir limitations common to elutable agents. This review critically examines the assorted AMAs reported to have been immobilized with an emphasis around interpretation of antimicrobial testing as it pertains to discriminating between eluting and immobilized agents. Immobilization techniques and modes of antimicrobial action are also discussed.

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Section: E Chitosanmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A review of immobilized antimicrobial agents and methods for testing

2011

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“…Often, insufficient surface properties preclude its use in an application to which bulk mechanical properties may be well-suited. For example dyeability, printability, paintability, adhesion, biocompatibility, antifogging, and gas permeability of PP parts can be improved by surface modification [2][3][4][5][6][7][8][9]. Efforts have been made to develop polymer modifications processes which allow the surface properties to be tailored to meet a specific requirement while retaining beneficial mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Poly(acrylic acid) surface grafted polypropylene films: Near surface and bulk mechanical response

Fasce¹,

Costamagna²,

Pettarín³

et al. 2008

Express Polym. Lett.

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Abstract. Radical photo-grafting polymerization constitutes a promising technique for introducing functional groups onto surfaces of polypropylene films. According to their final use, surface grafting should be done without affecting overall mechanical properties. In this work the tensile drawing, fracture and biaxial impact response of biaxially oriented polypropylene commercial films grafted with poly(acrylic acid) (PAA) were investigated in terms of film orientation and surface modification. The variations of surface roughness, elastic modulus, hardness and resistance to permanent deformation induced by the chemical treatment were assessed by depth sensing indentation. As a consequence of chemical modification the optical, transport and wettability properties of the films were successfully varied. The introduced chains generated a PAA-grafted layer, which is stiffer and harder than the neat polypropylene surface. Regardless of the surface changes, it was proven that this kind of grafting procedure does not detriment bulk mechanical properties of the PP film.

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“…These polycations are effective in antibacterial properties. They interfere with permeability There is a limited amount of information in the literature that chitosan can be immobilized onto plasma activated polymer surfaces in a one step by exploiting either carbodiimide or glutaraldehyde chemistries [20][21][22]. The covalent bond between carboxylic groups of the activated surfaces and amino groups of chitosan can be formed.…”

Section: Resultsmentioning

confidence: 99%

Chitosan immobilization to the polypropylene nonwoven after activation in atmospheric – pressure nitrogen plasma

et al. 2014

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Atmospheric-pressure air and nitrogen plasmas generated by surface dielectric barrier discharges have been used to incorporate new functionalities at the surface of polypropylene nonwoven fabric. The main goals were to activate the polymer surfaces for subsequent immobilization of chitosan from water solution without using any crosslinking and wetting agents. The samples were analyzed by diffuse reflectance infrared Fourier transform spectroscopy, scanning electron microscopy, and X-ray photoelectron spectroscopy. The nitrogen plasma treatment resulted in relatively high oxygen incorporation, about 9 atomic % mainly in aliphatic C=O type bonds and about 4 at.% of nitrogen incorporation in amine and other nitrogen functionalities. Chitosan was immobilized on the fabric fibers surfaces very homogeneously in amount of 2 -5 g m -2 . The chitosan coated samples exhibited a good laundering durability and strong antimicrobial activity against Bacillus subtilis and Escherichia coli.

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Surface modification of atmospheric plasma activated BOPP by immobilizing chitosan

Cited by 51 publications

References 35 publications

A review of immobilized antimicrobial agents and methods for testing

A review of immobilized antimicrobial agents and methods for testing

Poly(acrylic acid) surface grafted polypropylene films: Near surface and bulk mechanical response

Chitosan immobilization to the polypropylene nonwoven after activation in atmospheric – pressure nitrogen plasma

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