Molecular self-assembly synthesis of nano-sphere of La-containing hexagonal mesoporous solid

Guo, Wusheng; Lai, Chen; Zhao, Naiqin; Li, Xiang

doi:10.1016/j.jallcom.2009.05.054

Cited by 13 publications

(7 citation statements)

References 26 publications

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“…A previously synthesized nano sphere-shaped La-containing hexagonal mesoporous solid was reported by Wusheng Guo. 31 The inorganic part of a human bone, with a major portion of bone containing Ca-decient hydroxyapatite in the form of a plate-shape, was 2-3 nm in thickness and tens of nanometers in length and width. 32,33 Compared with the sphereshaped morphology, the newly synthesized sheet-shaped morphology was similar to the inorganic part of bone, which could provide better toughness during bone repair and regeneration.…”

Section: Introductionmentioning

confidence: 99%

In vitro osteogenesis of mesenchymal stem cells promoted by the release of La3+ and SiO44− from sheet-shaped lanthanum dropped hexagonal mesoporous silicon

Wang

Ling

et al. 2014

RSC Adv.

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In this study, in vitro osteogenesis was successfully promoted in mouse mesenchymal stem cells (BMSCs) by the release of La 3+ and SiO 4 4À from a sheet-shaped lanthanum dropped hexagonal mesoporous silica (La-HMS). In comparison with previous nano-sphere shaped La-HMS, the sheet-shaped morphology was similar to the inorganic component of bone, which could provide better toughness during bone repair and regeneration. The successful incorporation of La 3+ into the HMS was confirmed by the results of XRD and ICP-AES. In vitro proliferation was verified by CCK-8 and osteogenesis was verified by an alkaline phosphatase (ALP) activity assay, ALP staining, a calcium secretion assay and collagen secretion analysis. Considering the renewable source and highly proliferative nature of BMSCs, the achievement of engineered BMSC osteogenesis with this La-HMS could allow new applications in major bone repair and regeneration.La-HMS releasing SiO 4 4À and La 3+ was proposed as a potential therapeutic measure for bone defects.

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Section: Introductionmentioning

confidence: 99%

In vitro osteogenesis of mesenchymal stem cells promoted by the release of La3+ and SiO44− from sheet-shaped lanthanum dropped hexagonal mesoporous silicon

Wang

Ling

et al. 2014

RSC Adv.

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“…EDS verified the existence of Cu, and the mass fraction of Cu accounted for 4.890.52% ( Figures 2g,h ). The above results suggest successful synthesis of 5% Cu-MSN with an ideal structure, which is attributed to the cooperative assembly pattern between Cu and the structure-directing agent (CTAB), leading to a homogeneous distribution of Cu (Wei et al, 2009 ).…”

Section: Resultsmentioning

confidence: 95%

Bifunctional, Copper-Doped, Mesoporous Silica Nanosphere-Modified, Bioceramic Scaffolds for Bone Tumor Therapy

Chen

et al. 2020

Front. Chem.

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In the traditional surgical intervention procedure, residual tumor cells may potentially cause tumor recurrence. In addition, large bone defects caused by surgery are difficult to self-repair. Thus, it is necessary to design a bioactive scaffold that can not only kill residual tumor cells but also promote bone defect regeneration simultaneously. Here, we successfully developed Cu-containing mesoporous silica nanosphere-modified β-tricalcium phosphate (Cu-MSN-TCP) scaffolds, with uniform and dense nanolayers with spherical morphology via 3D printing and spin coating. The scaffolds exhibited coating time- and laser power density-dependent photothermal performance, which favored the effective killing of tumor cells under near-infrared laser irradiation. Furthermore, the prepared scaffolds favored the proliferation and attachment of rabbit bone marrow-derived mesenchymal stem cells and stimulated the gene expression of osteogenic markers. Overall, Cu-MSN-TCP scaffolds can be considered for complete eradication of residual bone tumor cells and simultaneous healing of large bone defects, which may provide a novel and effective strategy for bone tumor therapy. In the future, such Cu-MSN-TCP scaffolds may function as carriers of anti-cancer drugs or immune checkpoint inhibitors in chemo-/photothermal or immune-/photothermal therapy of bone tumors, favoring for effective treatment.

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“…Figure shows the FT-IR spectra of MA-SA-5. The band at 650–550 cm –1 should be attributed to the dual rings, such as the double six-membered rings that are peculiar for zeolite Y. − According to the spectra, the band at 578 cm –1 should be attributed to the double six-membered rings, which is direct evidence that the precursors of Y zeolites have been introduced into the walls of the samples. It is inferred that the characteristics of zeolite Y will be endowed to MA.…”

Section: Results and Discussionmentioning

confidence: 96%

Crystal-Seeds-Based Strategy for the Synthesis of Hydrothermally Stable Mesoporous Aluminosilicates with a Largely Decreased H₂O Amount

Cao

Zhao

Jin

et al. 2014

Ind. Eng. Chem. Res.

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Recent advances in the synthesis of hydrothermally stable mesoporous aluminosilicates (MAs) by assembling precursors shed light on their applications in residue fluid catalytic cracking. Reducing the n(H2O)/n(SiO2) ratio and thus reducing waste discharge is the key for practical applications of MAs. In this study, the synthesis of hydrothermally stable MAs with a decreased n(H2O)/n(SiO2) ratio has been developed based on seed-assisted crystallization. Crystal seeds were partly dissolved to microcrystallites on which a large amount of zeolite precursors are assembled and crystallized. As a direct result of the assembly priority of crystal seeds, the concentration and viscosity of the liquid phase in the synthesis system will be decreased greatly. Afterward, the remaining precursors with proper concentration and viscosity can be assembled with the surfactant micelles. Therefore, the H2O amount could be largely decreased by the introduction of crystal seeds.

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Molecular self-assembly synthesis of nano-sphere of La-containing hexagonal mesoporous solid

Cited by 13 publications

References 26 publications

In vitro osteogenesis of mesenchymal stem cells promoted by the release of La3+ and SiO44− from sheet-shaped lanthanum dropped hexagonal mesoporous silicon

In vitro osteogenesis of mesenchymal stem cells promoted by the release of La3+ and SiO44− from sheet-shaped lanthanum dropped hexagonal mesoporous silicon

Bifunctional, Copper-Doped, Mesoporous Silica Nanosphere-Modified, Bioceramic Scaffolds for Bone Tumor Therapy

Crystal-Seeds-Based Strategy for the Synthesis of Hydrothermally Stable Mesoporous Aluminosilicates with a Largely Decreased H₂O Amount

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Molecular self-assembly synthesis of nano-sphere of La-containing hexagonal mesoporous solid

Cited by 13 publications

References 26 publications

In vitro osteogenesis of mesenchymal stem cells promoted by the release of La3+ and SiO44− from sheet-shaped lanthanum dropped hexagonal mesoporous silicon

In vitro osteogenesis of mesenchymal stem cells promoted by the release of La3+ and SiO44− from sheet-shaped lanthanum dropped hexagonal mesoporous silicon

Bifunctional, Copper-Doped, Mesoporous Silica Nanosphere-Modified, Bioceramic Scaffolds for Bone Tumor Therapy

Crystal-Seeds-Based Strategy for the Synthesis of Hydrothermally Stable Mesoporous Aluminosilicates with a Largely Decreased H2O Amount

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Crystal-Seeds-Based Strategy for the Synthesis of Hydrothermally Stable Mesoporous Aluminosilicates with a Largely Decreased H₂O Amount