Induced wettability and surface-volume correlation of composition for bovine bone derived hydroxyapatite particles

Maidaniuc, Andreea; Miculescu, Florin; Voicu, Ştefan Ioan; Andronescu, Corina; Miculescu, Marian; Matei, Ecaterina; Mocanu, Aura-Cătălina; Pencea, Ion; Csáki, Ioana; Machedon-Pisu, Teodor; Ciocan, Lucian Toma

doi:10.1016/j.apsusc.2017.07.074

Cited by 50 publications

(50 citation statements)

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“…HA can be synthesized from various renewable resources (e.g. fish, sheep, cattle or bovine bones [17,18] or marine shells [19,20]). Along with the development of new biomaterials, the cost-efficient and highly performant processing techniques for final products manufacturing are also in need of improvement.…”

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confidence: 99%

“…The diameter of both full structure filaments (not tubular) specified by the manufacturer is of 1.75 ± 0.05 mm.The filaments were placed on a bed of bovine-bone-derived HA powder (synthesized through an established and completely reproductible method, as previously reported [44]), with a particle size of >125 µm, on top of which a new powder layer was added (necessary to completely cover the filament). HA powder was obtained after three thermal processes, one of boiling, one of deproteinization and one of calcination in electric oven, followed by grinding in ball mill and granulometric sorting [20,45,46].The soaked filaments were pressed under the action of different pressing forces (see Figure 1 and Table 1). The next step involved the thermal treatment of these samples into an electrical oven for different periods of time (30', 60', and 120') and different temperatures (195, 205, and 215 • C).…”

mentioning

confidence: 99%

“…HA can be synthesized from various renewable resources (e.g. fish, sheep, cattle or bovine bones [17,18] or marine shells [19,20]).…”

mentioning

confidence: 99%

“…The filaments were placed on a bed of bovine-bone-derived HA powder (synthesized through 104 an established and completely reproductible method, as previously reported [44]), with a particle size 105 of >125 μm, on top of which a new powder layer was added (necessary to completely cover the 106 filament). HA powder was obtained after three thermal processes, one of boiling, one of 107 deproteinization and one of calcination in electric oven, followed by grinding in ball mill and 108 granulometric sorting [20,45,46].…”

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confidence: 99%

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Novel Synthesis of Core-Shell Biomaterials from Polymeric Filaments with a Bioceramic Coating for Biomedical Applications

et al. 2020

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Bone tissue engineering is constantly in need of new material development with improved biocompatibility or mechanical features closer to those of natural bone. Other important factors are the sustainability, cost, and origin of the natural precursors involved in the technological process. This study focused on two widely used polymers in tissue engineering, namely polylactic acid (PLA) and thermoplastic polyurethane (TPU), as well as bovine-bone-derived hydroxyapatite (HA) for the manufacturing of core-shell structures. In order to embed the ceramic particles on the polymeric filaments surface, the materials were introduced in an electrical oven at various temperatures and exposure times and under various pressing forces. The obtained core-shell structures were characterized in terms of morphology and composition, and a pull-out test was used to demonstrate the particles adhesion on the polymeric filaments structure. Thermal properties (modulated temperature and exposure time) and the pressing force's influence upon HA particles' insertion degree were evaluated. More to the point, the form variation factor and the mass variation led to the optimal technological parameters for the synthesis of core-shell materials for prospect additive manufacturing and regenerative medicine applications.Coatings 2020, 10, 283 2 of 18 importance. Among these, PLA was widely used, mainly due to its biocompatibility with the human organism and the advantageous synthesis alternative from sustainable natural resources (e.g., beet or maize) [14]. Along with PLA, TPU was remarked in the additive manufacturing technology [15]. The TPU applications in the medical field spread from blood vessels, implants, and prosthetics, to scaffolding in tissue engineering, dialysis membranes, or breast implants [16].Furthermore, naturally derived hydroxyapatite (HA) is a bioactive ceramic, with similar chemical and structural properties to the mineral component of the natural bone tissue, and exceptional biocompatibility and osteoconductivity. HA can be synthesized from various renewable resources (e.g. fish, sheep, cattle or bovine bones [17,18] or marine shells [19,20]).Along with the development of new biomaterials, the cost-efficient and highly performant processing techniques for final products manufacturing are also in need of improvement. Additive manufacturing (AM) or 3D printing can be considered 21st century technology due to the possibility to attain patient-customized and adapted products [14]. However, the most widely and accessible used technique in orthopedics is fused deposition modeling (FDM) or fused filler fabrication (FFF) [8,14,21,22], which provide 3D scaffolds with a well-defined design by extruding a digital 3D model from thermoplastic polymeric materials heated to their melting point [22].This study aims to provide a new core-shell material that can be used in the FDM technique, targeted due to its rigorous control of parameters (temperature, bed temperature, feed rate, printing speed, etc.) [23][24][25][26][27].Therefore, thi...

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confidence: 99%

mentioning

confidence: 99%

“…HA can be synthesized from various renewable resources (e.g. fish, sheep, cattle or bovine bones [17,18] or marine shells [19,20]).…”

mentioning

confidence: 99%

mentioning

confidence: 99%

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Novel Synthesis of Core-Shell Biomaterials from Polymeric Filaments with a Bioceramic Coating for Biomedical Applications

et al. 2020

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“…A paper specimen always contains certain amount of water and organic volatile substances that could impair the vacuum into the SEM specimen chamber. The Environmental SEM technique, denoted ESEM, has been used to avoid this drawback taking into account that ESEM can operate at higher pressure within the sample chamber, even with a certain humidity of the specimen as recent studies have demonstrated for biological samples [27][28][29].…”

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Studies Concerning the Usage of the Intrinsic Morphological and Chemical Features of Some Common and Document Paper Types as Security Items

Pencea¹,

Turcu²,

Miculescu³

et al. 2018

Rev. Chim.

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The paper addresses the usage of the intrinsic security features which is a challenge for lowering the document protection costs. Three types of papers were investigated using ESEM-EDS and ED(P)-XRFS in order to identify and characterize overt and covert intrinsic items. The paper shows that some of the intrinsic morphological features of document paper can be successfully used as taggants. The chemical compositions can be used as internal marks for forensic authentication of the ballpoint pen imprints. Two new ways are proposed for enhancing the document safety protection: the usage of the fractal dimension of the paper pattern and the intentional admixture into paper mass of cheaper substances as taggants in conjunction with SEM and XRF techniques.

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Biopolymers in Dentistry

Onwubu,

Okonkwo,

Makgobole

et al. 2024

Biopolymers for Biomedical Applications

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Induced wettability and surface-volume correlation of composition for bovine bone derived hydroxyapatite particles

Cited by 50 publications

References 30 publications

Novel Synthesis of Core-Shell Biomaterials from Polymeric Filaments with a Bioceramic Coating for Biomedical Applications

Novel Synthesis of Core-Shell Biomaterials from Polymeric Filaments with a Bioceramic Coating for Biomedical Applications

Studies Concerning the Usage of the Intrinsic Morphological and Chemical Features of Some Common and Document Paper Types as Security Items

Biopolymers in Dentistry

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