Product Name
Pt Nanoparticles
Product Overview
Platinum nanoparticles (PtNPs), as a type of noble metal nanoparticle, have garnered widespread attention due to their outstanding properties. For instance, in the biomedical field: PtNPs are highly suitable as radiopharmaceuticals owing to their optical characteristics related to surface plasmon resonance. Additionally, compared to silver nanoparticles, PtNPs exhibit lower cytotoxicity, making them highly biocompatible and suitable for applications such as drug delivery and bioimaging. In the catalytic field: PtNPs demonstrate significantly superior catalytic performance over gold nanoparticles, primarily attributed to their high specific surface area and excellent stability in chemical reactions. Particularly in harsh reaction environments like acidic or oxidative conditions, PtNPs exhibit greater stability than gold nanoparticles, enabling prolonged maintenance of catalytic activity. Consequently, they are more suitable for applications in fuel cell catalysts and organic hydrogenation reactions. For the prepared PtNPs, surface modification with sodium citrate or polyvinylpyrrolidone (PVP) provides charge protection, enhancing the dispersion stability between particles.
Technical Parameter
Concentration 0.1 mg/mL Solvent:Water
Diameter:2.2±0.6 nm;4.5±1 nm(TEM)
Diameter:Dark brown dispersion Stabilizer:PVP or Sodium citrate Zeta potential:2.2 nm: - 11.76 mV/4.5 nm: - 43.71 mV
Product Features
1) High specific surface area: Platinum nanoparticles possess a large specific surface area and abundant active sites, which facilitate interactions with ligand molecules and polymers. Their surfaces are easily functionalized, making them conducive to the construction of composite systems. 2) Chemical and thermal stability: Platinum nanoparticles exhibit excellent chemical and thermal stability, enabling them to remain stable in high-temperature and corrosive environments. 3) Biocompatibility: Platinum nanoparticles exhibit excellent compatibility within the biological system, eliciting no significant immune response, particularly when sized small and surface-modified.
Application Fields
1) Catalytic reactions: Platinum nanoparticles play an important role in heterogeneous catalysis and electrocatalysis. Usually, platinum nanoparticles with small particle sizes (2-8 nm) have the best catalytic performance and have become the primary choice for many studies. 2) Electrochemistry: Although platinum's conductivity is not outstanding compared to gold, silver, and copper, its excellent stability, high temperature resistance, and corrosion resistance make platinum commonly used as an electrode material. 3) Biopharmaceuticals: Platinum nanoparticles can serve as carriers for platinum based chemotherapy drugs such as cisplatin, achieving targeted drug delivery. In addition, platinum nanoparticles can serve as signal amplification markers and nanoenzyme catalysts in immunoassays, significantly improving detection sensitivity, specificity, and response speed.
