Surface functionalized barium sulfate nanoparticles: controlled in situ synthesis and application in bone cement

Fang, Chao; Hou, Ruixia; Zhou, Kefeng; Hua, Feibin; Cong, Yang; Zhang, Jianfeng; Cheng, Ya‐Jun

doi:10.1039/c3tb21544j

Cited by 32 publications

(24 citation statements)

References 36 publications

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“…The volume shrinkage, as a major drawback of PMMA bone cement, has been tackled by its expansion property as the introduction of the expandable substances into the solid or liquid phase. The solid phase modification of PMMA bone cement mainly focused on the improvement of the hydrophilicity like hydrophilic bone cements (HBCs),3,4 and also the additives of the filling materials, such as barium sulfate, bioactive hydroxyapatite (HA) nanoparticles and BMP 2,5–7 could reduce the shrinkage of the matrix. In our previous studies, PAAS fibers and poly(methyl methacrylate‐ co ‐acrylic acid) [P(MMA‐AA)] microspheres were incorporated into the solid phase of commercial PMMA bone cement to eliminate its shrinkage 8,9.…”

Section: Introductionmentioning

confidence: 99%

HEMA‐Modified Expandable P(MMA‐AA) Bone Cement with Dual Water Absorption Networks

Chen

Tang

Zhao

et al. 2020

Macro Materials & Eng

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Although the shrinkage of polymethyl methacrylate (PMMA) bone cement has been tackled by the poly(methyl methacrylate‐co‐acrylic acid) [P(MMA‐AA)] bone cement due to the expandable P(MMA‐AA) copolymer in the solid phase, the hydrophobicity of PMMA and its solidification restrict simulated body fluid (SBF) diffusion and expansion properties. In this research, hydroxyethyl methacrylate (HEMA)‐modified P(MMA‐AA) bone cement (HMBC) is obtained by introducing HEMA into the liquid phase of P(MMA‐AA) bone cement. It is assumed that the dual water absorption networks can promote the SBF absorption capacity, thus resulting in the increased expansion behavior. The results demonstrate that the introduction of HEMA improves the hydrophilicity of the bulk. SBF absorption efficiency and swelling efficiency are promoted in the primary step of expansion. The porous structure of HMBC contributes to the increased SBF absorption and swelling in the second step of expansion behavior. Meanwhile, the remarkable absorption ratio and expansion ratio reach 88.5% and 97.4%, respectively. Furthermore, enhanced biocompatibility and osteogenesis activity provide HMBC as a promising biomaterial in the clinical setting.

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Section: Introductionmentioning

confidence: 99%

HEMA‐Modified Expandable P(MMA‐AA) Bone Cement with Dual Water Absorption Networks

Chen

Tang

Zhao

et al. 2020

Macro Materials & Eng

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“…[5,6] Especially, the transformation of waste products into high-quality products such as activated carbons has gained high importance during the last years. [7][8][9] Hydrothermal carbonization (HTC) has advantages compared with other carbonization methods such as pyrolysis [10][11][12] or hydrothermal liquification. [13][14][15] HTC takes place in autoclaves at reaction temperatures <300 C and allows the direct carbonization of wet biomasses (e.g., manure, sewage sludge) without any drying step.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal Carbonization‐Derived Carbon from Waste Biomass as Renewable Pt Support for Fuel Cell Applications: Role of Carbon Activation

et al. 2019

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Pt catalysts in proton exchange membrane fuel cells (PEMFCs) typically use carbon blacks such as Vulcan (Vulcan is a registered trademark of the company Cabot Corporation) based on fossil sources. Thus, an important research task is using sustainable supports in PEMFCs. Hydrothermal carbonization (HTC) converts biomasses into chars, which are possible substitutes for fossil‐based carbons. Herein, a Pt catalyst derived from HTC of coconut shells is developed for catalysis of O2 reduction in acidic media. Thermal activation enlarges the specific surface area by factor of 7 to 546 m2 g−1 and generates electrical conductivity making the material suitable for catalysis. Pt particles of 1.8 ± 0.5 nm are distributed well on the activated carbon. Cyclic and CO stripping voltammetry show an electrochemical surface area (ECSA) of 69 ± 21 m2 gPt−1, almost identical to that of the commercial catalyst using Vulcan (69 ± 6 m2 gPt−1). Although ECSAs are highly comparable, the activity for O2 reduction is lower compared with the commercial catalyst. HTC‐derived carbon has a lower degree of graphitization, less functional oxygen groups on its surface, and a lower electrical conductivity than Vulcan. This suggests different Pt–support interactions.

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“…The prospect of commercial application has drastically accelerated the growing demand of multifunctional barium sulphate (BaSO 4 ) nanoparticles. BaSO 4 is important in various applications such as catalyst carrier, adsorbent materials, biomedical devices, engineering plastics and so on [1][2][3]. Due to its ability to increase the density of fluid and hydrostatic pressure of a well it reduces blowout and applied as a drilling fluid in off-shore oil production [4].…”

Section: Introductionmentioning

confidence: 99%

Novel sonochemical green approach for synthesis of highly crystalline and thermally stable barium sulphate nanoparticles using Azadirachta indica leaf extract

2019

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Nanomaterial synthesized using plant extract is a viable and better alternative to chemical synthesis methods. A simple, nontoxic and inexpensive strategy, which meets the standard of green chemistry, has been introduced for the synthesis of highly crystalline and thermally stable barium sulphate (BaSO 4) nanoparticles. This work reports ultrasonic-assisted green synthesis of BaSO 4 nanoparticles using Azadirachta indica leaf extract at room temperature. The as-synthesized BaSO 4 nanoparticles were subjected to various physiochemical characterization using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), field emission gun-scanning electron microscopy (FEG-SEM), thermogravimetric analysis (TGA) and energy-dispersive X-ray spectroscopy (EDX). XRD explored orthorhombic, highly crystalline and pure BaSO 4 (JCPDS: 24-1035) with average crystallite size of 55.6 nm. FEG-SEM study revealed about size (>80 nm) of BaSO 4 nanoparticles. Co-precipitation method was also employed to synthesize BaSO 4 for comparison between biogenic and chemical methods. The size of BaSO 4 nanoparticles obtained using co-precipitation method was very large with rod shape morphology. Novel sonochemical green method is preferable because of its control over particle size as well as morphology. FTIR study confirmed the formation of BaSO 4 nanoparticles. High thermal tolerance and stability of BaSO 4 nanoparticles was evidenced from single step weight loss in TGA. In addition, strong characteristic signals of barium, sulphur and oxygen in EDX confirmed the purity of ultrasonic-assisted green synthesized BaSO 4 nanoparticles. Overall, this one pot, inexpensive and green sonochemical approach is a promising method for the synthesis of BaSO 4 nanoparticles, which might be used for various commercial applications.

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Surface functionalized barium sulfate nanoparticles: controlled in situ synthesis and application in bone cement

Abstract: Controlled in situ synthesis of MSAH-coated BaSO4 nanoparticles improves the mechanical properties and in vitro biocompatibility of the bone cements.

Cited by 32 publications

References 36 publications

HEMA‐Modified Expandable P(MMA‐AA) Bone Cement with Dual Water Absorption Networks

HEMA‐Modified Expandable P(MMA‐AA) Bone Cement with Dual Water Absorption Networks

Hydrothermal Carbonization‐Derived Carbon from Waste Biomass as Renewable Pt Support for Fuel Cell Applications: Role of Carbon Activation

Novel sonochemical green approach for synthesis of highly crystalline and thermally stable barium sulphate nanoparticles using Azadirachta indica leaf extract

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