Magnesium phosphate-based cements containing Halloysite nanotubes for cracks repair

Tonelli, Monica; Gelli, Rita; Ridi, Francesca

doi:10.1016/j.conbuildmat.2021.124056

Cited by 21 publications

(5 citation statements)

References 56 publications

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“…These studies also proved that CAPP treatments increase the biological activity of MPC scaffolds in terms of the osteogenic stimulus. Overall, we demonstrated that MPCs, already proven as injectable and moldable materials, 15,40 preserve a good biocompatibility upon CAPP treatment despite modifying their phase composition. As a future perspective, the comparison of the effect of CAPP toward MPCs vs CPCs would also be of great interest to further demonstrate the potential of such materials and the use of CAPP treatments on them.…”

Section: Discussionmentioning

confidence: 62%

“…MPC samples were prepared upon reaction of trimagnesium phosphate [TMP, Mg 3 (PO 4 ) 2 ] and a 3.5 M aqueous solution of DAHP. TMP was obtained from the calcination of Mg(OH) 2 with MgHPO 4 ·3H 2 O, as described elsewhere . Cement samples were prepared by mixing 0.5 g of TMP with 0.333 mL of DAHP 3.5 M (powder/liquid ratio 1.5 g/mL).…”

Section: Materials and Methodsmentioning

confidence: 99%

“…TMP was obtained from the calcination of Mg(OH) 2 with MgHPO 4 ·3H 2 O, as described elsewhere. 40 Cement samples were prepared by mixing 0.5 g of TMP with 0.333 mL of DAHP 3.5 M (powder/liquid ratio 1.5 g/mL). The reaction that takes place is the following …”

Section: Materials and Methodsmentioning

confidence: 99%

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Effect of Atmospheric Pressure Plasma Jet Treatments on Magnesium Phosphate Cements: Performance, Characterization, and Applications

Gelli,

Tonelli,

Ridi

et al. 2023

ACS Biomater. Sci. Eng.

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Atmospheric pressure plasma treatments are nowadays gaining importance to improve the performance of biomaterials in the orthopedic field. Among those, magnesium phosphate-based cements (MPCs) have recently shown attractive features as bone repair materials. The effect of plasma treatments on such cements, which has not been investigated so far, could represent an innovative strategy to modify MPCs’ physicochemical properties and to tune their interaction with cells. MPCs were prepared and treated for 5, 7.5, and 10 min with a cold atmospheric pressure plasma jet. The reactive nitrogen and oxygen species formed during the treatment were characterized. The surfaces of MPCs were studied in terms of the phase composition, morphology, and topography. After a preliminary test in simulated body fluid, the proliferation, adhesion, and osteogenic differentiation of human mesenchymal cells on MPCs were assessed. Plasma treatments induce modifications in the relative amounts of struvite, newberyite, and farringtonite on the surfaces on MPCs in a time-dependent fashion. Nonetheless, all investigated scaffolds show a good biocompatibility and cell adhesion, also supporting osteogenic differentiation of mesenchymal cells.

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Section: Discussionmentioning

confidence: 62%

Section: Materials and Methodsmentioning

confidence: 99%

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Effect of Atmospheric Pressure Plasma Jet Treatments on Magnesium Phosphate Cements: Performance, Characterization, and Applications

Gelli,

Tonelli,

Ridi

et al. 2023

ACS Biomater. Sci. Eng.

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“…Qiao et al [ 22 ] studied MPC with different Mg/P ratio and found that the flexural bonding strength between MPC and concrete substrates reached maximum with Mg/P ratio of 6, and the concrete substrate was 9.1 MPa at 7 days (see Table 6 ), also much higher than OPC and SAC. Recently, Monica et al [ 23 ] developed an innovative repair material by adding halloysite nanotubes (HNTs) into MPC mortar. It was illustrated that the introduction of HNTs into MPC mortar can improve the consistency and the handling properties of the mortar without affecting the setting time, which is significant, as the fast hardening of MPC is one of the main advantages for concrete repair.…”

Section: Concrete Repair Materialsmentioning

confidence: 99%

Cement-Based Repair Materials and the Interface with Concrete Substrates: Characterization, Evaluation and Improvement

Song

Líu

et al. 2022

Polymers

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Surface damages usually occur in concrete structures. In order to restore the functions and prolong the service life of concrete structures, their surface damages should be repaired in time. This paper reviews the main requirements for repair materials for concrete structures and the most used inorganic repair materials, such as cement-based materials, alkali-activated materials and polymer modified inorganic repair materials. Moreover, techniques to characterize and even improve the interfaces between these repair materials and concrete substrate are summarized. Cement-based material has the advantages of good mechanical properties and consistency with concrete substrate while having the problems of high shrinkage and low flexibility. Polymer modified materials were found as having lower shrinkage and higher flexural strength. Increasing the roughness or humidity of the surface, adding fibers and applying interfacial agents can improve the bond strength between cement-based repair materials and concrete substrates. All of these repair materials and techniques can help to build a good interfacial bonding, and mechanisms of how they improve the interface are discussed in this article. These are of great importance in guaranteeing the effectiveness of the repair of the concrete surface and to guide the research and development of new repair materials.

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“…[44][45][46][47] Moreover, these nanoclays have been used as reinforcing additives in cement composites, dental matrices, and bone tissue engineering. [48][49][50][51] Considering these properties, we envisioned that HNTs and CNCs could form composite films with intriguing mechanical and optical properties.…”

Section: Introductionmentioning

confidence: 99%

Halloysite nanotubes enhance the mechanical properties and thermal stability of iridescent cellulose nanocrystal films

et al. 2023

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Magnesium phosphate-based cements containing Halloysite nanotubes for cracks repair

Cited by 21 publications

References 56 publications

Effect of Atmospheric Pressure Plasma Jet Treatments on Magnesium Phosphate Cements: Performance, Characterization, and Applications

Effect of Atmospheric Pressure Plasma Jet Treatments on Magnesium Phosphate Cements: Performance, Characterization, and Applications

Cement-Based Repair Materials and the Interface with Concrete Substrates: Characterization, Evaluation and Improvement

Halloysite nanotubes enhance the mechanical properties and thermal stability of iridescent cellulose nanocrystal films

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