Multifactorial impacts of B-doping on Fe81Ga19 alloys prepared by laser-beam powder bed fusion: Microstructure, magnetostriction, and osteogenesis

Gao, Chengde; Wang, Liyuan; Deng, Youwen; Peng, Shuping; Shuai, Cijun

doi:10.1016/j.jmst.2024.03.063

Cited by 12 publications

(1 citation statement)

References 62 publications

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“…30,31 PLLA and SnSe/rGO were mixed according to a predefined proportion (Table 1), and the mixed powder was collected after ultrasonication, centrifugation (6000 rpm; 5 min), and vacuum drying (50 °C; 10 h). 32,33 Finally, the collected powders were selectively sintered to prepare PLLA/SnSe/rGO scaffolds via SLS (scan velocity: 100 mm/s; laser power: 0.9 W; layer thickness: 100 μm).…”

Section: Scaffold Preparationmentioning

confidence: 99%

Pyroelectric-Inspired SnSe/rGO Nanoparticles for Heat Shock Protein Inhibition in ROS-Assisted Photothermal Tumor Therapy

Shuai,

Zhao,

Zhong

et al. 2024

ACS Appl. Nano Mater.

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Although photothermal therapy is widely employed for tumor treatment because of its high tumor cell selectivity and low apoptosis resistance, heat-shock proteins (HSPs) impart resistance to heat-induced apoptosis in tumor cells, thus diminishing the therapeutic effectiveness. To this end, tin selenide (SnSe) was grown in situ on reduced graphene oxide (rGO) nanosheets to construct a photothermal–thermoelectric SnSe/rGO nanosystem. The rGO component converted near-infrared light energy into localized thermal energy, resulting in the thermal ablation of tumor cells. Meanwhile, SnSe converted temperature fluctuations into pyroelectric charges, which interacted with surrounding O2 molecules to generate reactive oxygen species that oxidized the amino acids on the HSPs, which changed the protein conformation and functionally damaged the tumor cells. In addition, rGO functioned as an efficient electron acceptor to increase electron mobility, thus enhancing the thermoelectric conversion efficiency of SnSe. Then, the SnSe/rGO nanosystem was incorporated into a poly-l-lactic acid bone scaffold to prevent tumor recurrence. Results showed that the composite scaffold not only exhibited good photothermal and thermoelectric effects. In vitro cell tests demonstrated that the scaffold generated 1O2 based on temperature fluctuations and the antitumor rate reached 86.6% against osteosarcoma MG-63 cells.

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Section: Scaffold Preparationmentioning

confidence: 99%

Pyroelectric-Inspired SnSe/rGO Nanoparticles for Heat Shock Protein Inhibition in ROS-Assisted Photothermal Tumor Therapy

Shuai,

Zhao,

Zhong

et al. 2024

ACS Appl. Nano Mater.

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Amino‐functionalized nano‐hydroxyapatite boosts the grafting efficiency of poly (l‐lactic acid) to enhance interfacial bonding in composite bone scaffold

Yang,

Fan,

Qiu

et al. 2024

Polymer Composites

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Nano‐hydroxyapatite (nano‐HAP)/poly (l‐lactic acid) (PLLA) bone scaffold is expected to overcome the deficiencies and achieve the complementary advantages of individual constituents, but the weak interfacial bonding due to their thermodynamic incompatibility is detrimental to the mechanical properties. Herein, the PLLA chains were grafted onto nano‐HAP with 3‐aminopropyltriethoxysilane (KH550) as a coupling reagent to enhance the interfacial bonding with PLLA. Specifically, the silicon hydroxyl group produced by KH550 hydrolysis could form covalent bonding with the hydroxyl group of nano‐HAP, and the amino group of KH550 initiated the ring‐opening polymerization of l‐lactide monomers to graft PLLA chains onto nano‐HAP more effectively, leading to a higher grafting ratio of 16.7% compared with 7.2% in direct grafting without KH550 modification. Consequently, the tensile and compressive strength of the modified nano‐HAP/PLLA scaffold were improved by 40.8% and 59.5% enhancement due to the enhanced interfacial bonding in the composite scaffold, respectively, compared to the original nano‐HAP/PLLA scaffold. Additionally, the bone scaffold was conducive to cell adhesion and proliferation, making it an ideal candidate for bone defect repair.Highlights Amino‐functionalized nano‐HAP boosted the grafting efficiency of PLLA chains. Interfacial bonding between nano‐HAP and matrix was enhanced. Bone scaffold showed better mechanical properties and benign cytocompatibility.

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Magnetostrictive strain-sensitivity synergy for laser-beam powder bed fusion processed Fe81Ga19 alloys by magnetic field annealing

Yao,

Li,

Gao

et al. 2024

Advanced Powder Materials

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Multifactorial impacts of B-doping on Fe81Ga19 alloys prepared by laser-beam powder bed fusion: Microstructure, magnetostriction, and osteogenesis

Cited by 12 publications

References 62 publications

Pyroelectric-Inspired SnSe/rGO Nanoparticles for Heat Shock Protein Inhibition in ROS-Assisted Photothermal Tumor Therapy

Pyroelectric-Inspired SnSe/rGO Nanoparticles for Heat Shock Protein Inhibition in ROS-Assisted Photothermal Tumor Therapy

Amino‐functionalized nano‐hydroxyapatite boosts the grafting efficiency of poly (l‐lactic acid) to enhance interfacial bonding in composite bone scaffold

Magnetostrictive strain-sensitivity synergy for laser-beam powder bed fusion processed Fe81Ga19 alloys by magnetic field annealing

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