2013年8月15日 · Pt modified Fe 3 O 4 magnetic nanoparticles (Fe3 O 4@Pt NPs) were synthesized by a simple method. The morphology and crystal structure of the as-prepared nanocomposite were characterized by TEM, XRD and EDS. The peroxidase-like catalytic activity of the synthesized nanoparticles was also investigated.

2021年4月1日 · Fe 3 O 4 @Pt@E5 entered the body through blood circulation, targeted and enriched around AML cells through E5, and was absorbed by AML cells. Fe 3 O 4 @Pt@E5 generated mass ROS through the sequential catalytic reactions, which induced cells apoptosis and prevented AML cells metastasis to bone marrow and spleen.

2009年3月4日 · Monodisperse dumbbell-like Pt−Fe 3 O 4 nanoparticles are synthesized by epitaxial growth of Fe onto Pt nanoparticles followed by Fe oxidation. The nanoparticle size in the structure is tunable from 2 to 8 nm for Pt and 6 to 20 nm for Fe 3 O 4.

Trimetallic nanozyme Fe 3 O 4 @Ag@Pt exhibits OXD-, POD-, and SOD-like activities. The synergistic catalytic system results in enhanced OXD-like activity. The recyclability, good resistance, high stability and low cost assist TAC test. Apply to detect TAC in fruit juice, commercial beverages and cells successfully.

2023年11月11日 · An efficient electrocatalyst was prepared by fabricating Pt-Fe3O4 on NF using hydrothermal method for electrochemical nitrate reduction to ammonia. Pt-Fe3O4/NF showed a remarkable NH4+ yield rate with high Faradaic efficiency at − 0.8 V vs. RHE. Also, the Pt-Fe3O4/NF nanocomposite exhibited outstanding stability and durability.

2019年9月6日 · In comparison with Pt–Fe 3 O 4 dumbbell-like nanoparticles, Pt–Fe 3 O 4 @N-carbon yolk@shell nanoparticles showed improved catalytic activity and stability toward the liquid-phase 4-nitrophenol reduction and β-ionone oxidation, making them a promising candidate for catalysis applications.

2013年3月18日 · Here, we show that solution-mediated chemical transformation reactions, which are well established for pseudomorphically transforming colloidal metal nanoparticles into derivative metal-containing phases, can also be applied to colloidal hybrid nanoparticles.

2021年7月10日 · Fe 3 O 4 @Pt NPs can effectively induce ROS generation based on the catalytic reaction on the surface of Pt nanoparticles triggered by electric field (E), and meanwhile it may catalyze intracellular H 2 O 2 into ROS via Fenton reaction.

External additives (i.e., ionic electride donors) are usually necessary to obtain a high catalytic performance in an electron-density-dependent chemoselective hydrogenation reaction. Here, a sphere-shaped Pt/Fe3O4 catalyst is prepared through a one-pot redox reaction using Pt(iv) and Fe(ii) precursors. The experime

2022年9月28日 · In this research, we constructed a simple approach to detect glucose by preparing uniformly dispersed core (Fe 3 O 4)–shell (Pt) magnetic nanoparticles (Fe 3 O 4 @Pt NPs) as peroxidase mimetics, with which a paper-based colorimetric sensor is used.