Laser-assisted grafting onto polycarbonate: application to metallization by chemical means

Charbonnier, M.; Alami, M.; Romand, M.; Girardeau-Montaut, J.P.; Afif, M.

doi:10.1016/s0169-4332(96)00661-7

Cited by 15 publications

(3 citation statements)

References 8 publications

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“…49 This methodology is based on the possibility of chemisorption of Palladium (Pd 2þ ) on the surface of bioinert polymers (1), which acts as the catalyst to induce the precipitation of calciumphosphate on its surface (2). [50][51][52][53] Since it is known that CMC is able to chelate metal ions, 40 we expect CMC to bind Pd 2þ . As illustrated in Figure 1 the resulting excess of positive charge from the CMC/ Pd 2þ complex may build up an adjacent layer of negative charges (phosphate groups), which can create a residual charge responsible for attracting other calcium ions.…”

Section: Introductionmentioning

confidence: 99%

Novel hydroxyapatite/carboxymethylchitosan composite scaffolds prepared through an innovative “autocatalytic” electroless coprecipitation route

Oliveira

Costa

Leonor

et al. 2008

J Biomedical Materials Res

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A developmental composite scaffold for bone tissue engineering applications composed of hydroxyapatite (HA) and carboxymethylchitosan (CMC) was obtained using a coprecipitation method, which is based on the "autocatalytic" electroless deposition route. The results revealed that the pores of the scaffold were regular, interconnected, and possess a size in the range of 20-500 microm. Furthermore, the Fourier transform infra-red spectrum of the composite scaffolds exhibited all the characteristic peaks of apatite, and the appearance of typical bands from CMC, thus showing that coprecipitation of both organic and inorganic phases was effective. The X-ray diffraction pattern of composite scaffolds demonstrated that calcium-phosphates consisted of crystalline HA. From microcomputed tomography analysis, it was possible to determine that composite scaffolds possess a 58.9% +/- 6% of porosity. The 2D morphometric analysis demonstrated that on average the scaffolds consisted of 24% HA and 76% CMC. The mechanical properties were assessed using compressive tests, both in dry and wet states. Additionally, in vitro tests were carried out to evaluate the water-uptake capability, weight loss, and bioactive behavior of the composite scaffolds. The novel hydroxyapatite/carboxymethylchitosan composite scaffolds showed promise whenever degradability and bioactivity are simultaneously desired, as in the case of bone tissue-engineering scaffolding applications.

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Section: Introductionmentioning

confidence: 99%

Novel hydroxyapatite/carboxymethylchitosan composite scaffolds prepared through an innovative “autocatalytic” electroless coprecipitation route

Oliveira

Costa

Leonor

et al. 2008

J Biomedical Materials Res

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“…This techniques promotes the formation of radicals which leads to chemical reactions, subsequently modifying the surface chemistry. Charbonnier et al [159] used laser grafting of nitrogen atoms onto the surface of polycarbonate to show that, by increasing the laser fluence, the grafting of nitrogen onto the polycarbonate surface could be increased. Most of the investigations on CO 2 laser grafting have been conducted by Mirzadeh and coworkers [21,159,160].…”

Section: Radiation Graftingmentioning

confidence: 99%

“…Charbonnier et al [159] used laser grafting of nitrogen atoms onto the surface of polycarbonate to show that, by increasing the laser fluence, the grafting of nitrogen onto the polycarbonate surface could be increased. Most of the investigations on CO 2 laser grafting have been conducted by Mirzadeh and coworkers [21,159,160]. In their work they performed investigations of grafting 2-hydroxyethyl methacrylate (HEMA), N-vinyl-2-pyrrolidone (NVP), acrylamide (AAm) onto ethylene-propylene rubber (EPR).…”

Section: Radiation Graftingmentioning

confidence: 99%

Surface Treatments to Modulate Bioadhesion: A Critical Review

Waugh¹,

Toccaceli²,

Gillett³

et al. 2016

rev adhes adhesives

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On account of the recent increase in importance of biological and microbiological adhesion in industries such as healthcare and food manufacturing many researchers are now turning to the study of materials, wettability and adhesion to develop the technology within these industries further. This is highly significant as the stem cell industry alone, for example, is currently worth £3.5 million in the United Kingdom (UK) alone. This paper reviews the current state-of-the-art techniques used for surface treatment with regards to modulating biological adhesion including laser surface treatment, plasma treatment, micro/nano printing and lithography, specifically highlighting areas of interest for further consideration by the scientific community. What is more, this review discusses the advantages and disadvantages of the current techniques enabling the assessment of the most attractive means for modulating biological adhesion, taking in to account cost effectiveness, complexity of equipment and capabilities for processing and analysis.

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Fundamentals of Laser‐Polymer Interactions and their Relevance to Polymer Metallization

Rytlewski

2014

Laser Surface Modification and Adhesion

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Laser-assisted grafting onto polycarbonate: application to metallization by chemical means

Cited by 15 publications

References 8 publications

Novel hydroxyapatite/carboxymethylchitosan composite scaffolds prepared through an innovative “autocatalytic” electroless coprecipitation route

Novel hydroxyapatite/carboxymethylchitosan composite scaffolds prepared through an innovative “autocatalytic” electroless coprecipitation route

Surface Treatments to Modulate Bioadhesion: A Critical Review

Fundamentals of Laser‐Polymer Interactions and their Relevance to Polymer Metallization

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