Production and characterization of cellulose acetate – titanium dioxide nanotubes membrane fraxiparinized through polydopamine for clinical applications

Dumitriu, Cristina; Voicu, Ştefan Ioan; Muhulet, Alexandru; Nechifor, Gheorghe; Popescu, Simona; Ungureanu, Camelia; Carja, Andrea; Miculescu, Florin; Trușcă, Roxana; Pîrvu, Cristian

doi:10.1016/j.carbpol.2017.10.082

Cited by 48 publications

(31 citation statements)

References 42 publications

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“…Due to PLA's good biocompatibility [18] and bioresorbability [19], polymer composites with HA nanoparticles are focused on the synthesis of materials that improve the osteointegration of the implantable scaffold. Rakmae et al have reported the modification of the surface of HA particles with 3-aminopropyltriethoxysilane (APES) or 3-methacryloxypropyltrimethoxysilane (MPTS) to increase the compatibility between the inorganic filler and the polymer matrix [20].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of PLA-Micro-structured Hydroxyapatite Composite Films

Pandele

Constantinescu

Radu³

et al. 2020

Materials

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This article presents a facile synthesis method used to obtain new composite films based on polylactic acid and micro-structured hydroxyapatite particles. The composite films were synthesized starting from a polymeric solution in chloroform (12 wt.%) in which various concentrations of hydroxyapatite (1, 2, and 4 wt.% related to polymer) were homogenously dispersed using ultrasonication followed by solvent evaporation. The synthesized composite films were morphologically (through SEM and atomic force microscopy (AFM)) and structurally (through FT-IR and Raman spectroscopy) characterized. The thermal behavior of the composite films was also determined. The SEM and AFM analyses showed the presence of micro-structured hydroxyapatite particles in the film’s structure, as well as changes in the surface morphology. There was a significant decrease in the crystallinity of the composite films compared to the pure polymer, this being explained by a decrease in the arrangement of the polymer chains and a concurrent increase in the degree of their clutter. The presence of hydroxyapatite crystals did not have a significant influence on the degradation temperature of the composite film.

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Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of PLA-Micro-structured Hydroxyapatite Composite Films

Pandele

Constantinescu

Radu³

et al. 2020

Materials

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“…TiNTs have potential applications in several fields; they are found in biomaterials, gas sensors, adsorbents, heterogeneous catalysis ( photocatalysis, oxidation reactions, organic synthesis, biomass,…), biological activities to remove bacteria from water, solar cells, Li battery production, and many others. In particular, TiNTs have been used as a catalytic support for different active species (metals, oxides and sulfides).…”

Section: Introductionmentioning

confidence: 99%

Study of 1D Titanate‐Based Materials –New Modification of the Synthesis Procedure and Surface Properties‐Recent Applications

Ameur

Bachir

2020

ChemistrySelect

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This paper represents a general study of titanate nanotubes (TiNTs) which are among the most important materials in the field of catalysis. This research work covers more than 100 publications about the formulation, characterisation and most recent applications of TiNTs. TiNTs can be prepared by different methods, namely the anodic deposition, sol-gel template synthesis and alkaline hydrothermal treatment. The present study focuses on the preparation of this tubular structure by alkaline treatment, using the latest and most recent processes that have been introduced in this method (stirring, acid nature, annealing temperature, etc). The surface properties, such as the point of zero charge (P.Z.C), acid-base nature and light absorption, of TiNTs are also evoked. In the end, some recent and important TiNTs applications in the field of renewable energies are reported (H 2 production and methanation). In addition, NO reduction, CO oxidation, photocatalysis and organic synthesis are also mentioned. Therefore, it may be said that this paper is a structured study about TiNTs for the purpose of making the reader aware of their importance, understand their synthesis, and know their scope of applications. To conclude, the most important data, acquired through various characterization techniques, are provided.[a] Dr.

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“…Cellulose, an important natural biopolymer, is the main biomass with distinctive properties including renewability, high thermal stability, and biodegradability [2,3]. Cellulose films have great potential for applications in food packaging, the biomedical field, conductive materials, and chiral resolution [2,4,5,6,7]. The first challenge for the preparation of cellulose films is the successful dissolution of cellulose by solvents.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Cellulose Films from Sustainable CO2/DBU/DMSO System

Jin

Gan

et al. 2019

Polymers

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Cellulose films are regarded as sustainable materials having wide applications in food packaging, separation, etc. Their preparation substantially relies on sufficient dissolution. Herein, various celluloses adequately dissolved in a new solvent system of carbon dioxide,1, 8-diazabicyclo [5.4.0] undec-7-ene and dimethyl sulfoxide (CO2/DBU/DMSO) were made in to films using different regeneration reagents. The films regenerated from ethanol and methanol presented homogeneous and smooth surfaces, while those from 5 wt % NaOH (aq.) and 5 wt % H2SO4 (aq.) showed rough surfaces, as analyzed using scanning electron microscopy (SEM) and atomic force microscopy (AFM). The films regenerated from 5 wt % NaOH (aq.) and 5 wt % H2SO4 (aq.) rendered cellulose II structures, while those regenerated from alcohols had amorphous structures as evidenced using fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) results. The films made of microcrystalline cellulose had a good light transmittance of about 90% at 800 nm with a tensile strength of 55 MPa and an elongation break of 6.5%, while those from wood pulp cellulose demonstrated satisfactory flexibility with a tensile strength of 91 MPa and an elongation break of 9.0%. This research reports a simple, environmental, and sustainable method to prepare cellulose films of good mechanical properties.

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Production and characterization of cellulose acetate – titanium dioxide nanotubes membrane fraxiparinized through polydopamine for clinical applications

Cited by 48 publications

References 42 publications

Synthesis and Characterization of PLA-Micro-structured Hydroxyapatite Composite Films

Synthesis and Characterization of PLA-Micro-structured Hydroxyapatite Composite Films

Study of 1D Titanate‐Based Materials –New Modification of the Synthesis Procedure and Surface Properties‐Recent Applications

Preparation of Cellulose Films from Sustainable CO2/DBU/DMSO System

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