Surface modification of polyethylenterephthalate film with primary amines using gamma radiation and aminolysis reaction for cell adhesion studies

Rodríguez‐Alba, Efraín; Dionisio, Nestor; Pérez-Calixto, Mitzi; Huerta, L.; García-Uriostegui, Lorena; Hautefeuille, Mathieu; Vázquez‐Victorio, Genaro; Burillo, Guillermina

doi:10.1016/j.radphyschem.2020.109070

Cited by 10 publications

(8 citation statements)

References 34 publications

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“…Moreover, due to its own porosity PET is conducive to microbial adhesion and subsequent bacteria colonization [16]. Therefore, for improvement of antimicrobial properties PET was subjected to several surface modification technologies [17,18], the majority based on functionalization [19,20], grafting [21][22][23][24][25][26][27][28], surface topography modification [29][30][31][32][33], coating [34][35][36][37] and their combinations [38][39][40].…”

Section: Introductionmentioning

confidence: 99%

Deposition of Copper on Polyester Knitwear Fibers by a Magnetron Sputtering System. Physical Properties and Evaluation of Antimicrobial Response of New Multi-Functional Composite Materials

et al. 2020

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In this study, copper films were deposited by magnetron sputtering on poly(ethylene terephthalate) knitted textile to fabricate multi-functional, antimicrobial composite material. The modified knitted textile composites were subjected to microbial activity tests against colonies of Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria and antifungal tests against Chaetomium globosum fungal molds species. The prepared samples were characterized by UV/VIS transmittance, scanning electron microscopy (SEM), tensile and filtration parameters and the ability to block UV radiation. The performed works proved the possibility of manufacturing a new generation of antimicrobial textile composites with barrier properties against UV radiation, produced by a simple, zero-waste method. The specific advantages of using new poly(ethylene terephthalate)-copper composites are in biomedical applications areas.

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Section: Introductionmentioning

confidence: 99%

Deposition of Copper on Polyester Knitwear Fibers by a Magnetron Sputtering System. Physical Properties and Evaluation of Antimicrobial Response of New Multi-Functional Composite Materials

et al. 2020

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“…The high-resolution XPS of W 4f in Figure c illustrated two peaks at 35 and 37.5 eV due to W VI 4f 7/2 and W VI 4f 5/2 , respectively . As shown in Figure d, a N 1s peak was observed in the range of 398–404 eV related to sp 3 hybridization in the amine group …”

Section: Resultsmentioning

confidence: 88%

“…54 As shown in Figure 5d, a N 1s peak was observed in the range of 398−404 eV related to sp 3 hybridization in the amine group. 55 Electrochemistry and electrocatalytic behaviors of CoPOM− APTS−rGO in the water oxidation reaction were investigated with cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), linear sweep voltammetry (LSV), Tafel plot, and chronoamperometric analysis (CA).…”

Section: ■ Results and Discussionmentioning

confidence: 99%

New Water Oxidation Electrocatalyst Based on the Cobalt-Containing Polyoxometalate-Reduced Graphene Oxide Hybrid Nanomaterial

2021

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A new hybrid nanomaterial based on the immobilization of cobalt-containing polyoxometalate (CoPOM) on the surface of reduced graphene oxide (rGO) was designed for an efficient electrocatalytic water splitting reaction. First, the surface of rGO was functionalized with aminopropylsilyl groups and protonated with hydrochloric acid to produce ammonium groups. Then, the electrostatic interaction of positively charged rGO-supported ammonium groups with anionic CoPOM produced a CoPOM−APTS−rGO hybrid nanomaterial. The achieved hybrid nanomaterial exhibited a low overpotential of 128 mV versus NHE at a current density of 10 mA cm −2 in the electrocatalytic water oxidation at pH 7. In addition, a fast reaction kinetic with a Tafel slope of 74 mV dec −1 was seen in the presence of the prepared hybrid nanomaterial. Linear sweep voltammetry analysis revealed the long-term stability and activity of CoPOM−APTS−rGO for water oxidation in neutral conditions.

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“…CasaXPS software was used to analyze the information. Curve fitting was done with a linear background and a GL [ 30 ] lineshape. The binding energy was calculated using the C1 S of hydrocarbon at 285.0 eV.…”

Section: Methodsmentioning

confidence: 99%

Amination of Polymeric Braid Structures to Improve Tendon Healing: An Experimental Comparison

Peixoto

Silva

Rodrigues

et al. 2022

Macro Materials & Eng

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Several polymers are researched for tendon repair as polyethylene terephthalate (PET) and polylactic acid (PLA). These are biocompatible and useful in scaffolding repair though with minimal success due to long-term failure. There is a need to improve such scaffolds' design and physical-chemical nature. This work concerns surface functionalization of polymeric braids (PET and PLA) that fulfill the high mechanical demands of tissues such as tendons. The functionalization aims to incorporate amine groups in the braids' surface, improve cell adhesion, and consequently, the poor healing rate of these tissues and the biointegration of the braids. Two approaches are compared: the direct application of NH 3 plasma and the surface grafting of EDA after O 2 plasma activation. X-ray photoelectron spectroscopy (XPS) shows that amine groups are effectively introduced onto the samples' surfaces. Besides, the plasma parameters chosen do not compromise the topography and tensile behavior of the braids. Resazurin assay and scanning electron microscopy show that the NH 3 treatment improves cell-biomaterial interaction as improved cell adhesion and proliferation are observed. Both approaches are safe for biomedical applications. The NH 3 plasma approach is more environmentally friendly, faster, and easier to scale-up, showing potential for application in the final hybrid medical device.

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Surface modification of polyethylenterephthalate film with primary amines using gamma radiation and aminolysis reaction for cell adhesion studies

Cited by 10 publications

References 34 publications

Deposition of Copper on Polyester Knitwear Fibers by a Magnetron Sputtering System. Physical Properties and Evaluation of Antimicrobial Response of New Multi-Functional Composite Materials

Deposition of Copper on Polyester Knitwear Fibers by a Magnetron Sputtering System. Physical Properties and Evaluation of Antimicrobial Response of New Multi-Functional Composite Materials

New Water Oxidation Electrocatalyst Based on the Cobalt-Containing Polyoxometalate-Reduced Graphene Oxide Hybrid Nanomaterial

Amination of Polymeric Braid Structures to Improve Tendon Healing: An Experimental Comparison

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