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Article

Preliminary Studies on Graphene-Reinforced 3D Products Obtained by the One-Stage Sacrificial Template Method for Bone Reconstruction Applications

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Department of Metallic Materials Science, Physical Metallurgy, University Politehnica of Bucharest, 313 Splaiul Independentei, J Building, RO-060042 Bucharest, Romania
2
National Institute of Materials Physics, 405A Atomistilor Street, RO-077125 Măgurele, Romania
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Polymers Department, National Institute for Research & Development in Chemistry and Petrochemistry, 202 Splaiul Independentei, RO-060021 Bucharest, Romania
4
Prosthetics Technology and Dental Materials Department, “Carol Davila” University of Medicine and Pharmacy, 37 Dionisie Lupu Street, RO-020022 Bucharest, Romania
*
Author to whom correspondence should be addressed.
Academic Editor: Dusan Losic
J. Funct. Biomater. 2021, 12(1), 13; https://0-doi-org.brum.beds.ac.uk/10.3390/jfb12010013
Received: 21 January 2021 / Revised: 4 February 2021 / Accepted: 9 February 2021 / Published: 12 February 2021
(This article belongs to the Special Issue Bioceramics and Bioactive Glass-Based Materials)
The bone remodeling field has shifted focus towards the delineation of products with two main critical attributes: internal architectures capable to promote fast cell colonization and good mechanical performance. In this paper, Luffa-fibers and graphene nanoplatelets were proposed as porogen template and mechanical reinforcing agent, respectively, in view of framing 3D products by a one-stage polymer-free process. The ceramic matrix was prepared through a reproducible technology, developed for the conversion of marble resources into calcium phosphates (CaP) powders. After the graphene incorporation (by mechanical and ultrasonication mixing) into the CaP matrix, and Luffa-fibers addition, the samples were evaluated in both as-admixed and thermally-treated form (compact/porous products) by complementary structural, morphological, and compositional techniques. The results confirmed the benefits of the two agents’ addition upon the compact products’ micro-porosity and the global mechanical features, inferred by compressive strength and elastic modulus determinations. For the porous products, overall optimal results were obtained at a graphene amount of <1 wt.%. Further, no influence of graphene on fibers’ ability to generate at high temperatures internal interconnected-channels-arrays was depicted. Moreover, its incorporation led to a general preservation of structural composition and stability for both the as-admixed and thermally-treated products. The developed CaP-reinforced structures sustain the premises for prospective non- and load-bearing biomedical applications. View Full-Text
Keywords: marble; graphene; biogenic-calcium-phosphate; natural template; reinforced products; mechanical features marble; graphene; biogenic-calcium-phosphate; natural template; reinforced products; mechanical features
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MDPI and ACS Style

Mocanu, A.-C.; Miculescu, F.; Stan, G.E.; Ciocoiu, R.-C.; Corobea, M.C.; Miculescu, M.; Ciocan, L.T. Preliminary Studies on Graphene-Reinforced 3D Products Obtained by the One-Stage Sacrificial Template Method for Bone Reconstruction Applications. J. Funct. Biomater. 2021, 12, 13. https://0-doi-org.brum.beds.ac.uk/10.3390/jfb12010013

AMA Style

Mocanu A-C, Miculescu F, Stan GE, Ciocoiu R-C, Corobea MC, Miculescu M, Ciocan LT. Preliminary Studies on Graphene-Reinforced 3D Products Obtained by the One-Stage Sacrificial Template Method for Bone Reconstruction Applications. Journal of Functional Biomaterials. 2021; 12(1):13. https://0-doi-org.brum.beds.ac.uk/10.3390/jfb12010013

Chicago/Turabian Style

Mocanu, Aura-Cătălina, Florin Miculescu, George E. Stan, Robert-Cătălin Ciocoiu, Mihai C. Corobea, Marian Miculescu, and Lucian T. Ciocan 2021. "Preliminary Studies on Graphene-Reinforced 3D Products Obtained by the One-Stage Sacrificial Template Method for Bone Reconstruction Applications" Journal of Functional Biomaterials 12, no. 1: 13. https://0-doi-org.brum.beds.ac.uk/10.3390/jfb12010013

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