Lanthanum Strontium Manganese Gold Core Shell (La2/3Sr1/3MnO3/Au, 99.9%, APS: 80-100nm)

Lanthanum Strontium Manganese Gold Core-Shell Nanoparticles

Lanthanum Strontium Manganese Gold core-shell nanoparticles are composite nanomaterials that combine the distinct properties of lanthanum (La), strontium (Sr), manganese (Mn), and gold (Au) into a single, multifunctional particle. These nanoparticles feature a core-shell architecture where the core typically consists of lanthanum-strontium-manganese (LaSrMn) alloy or oxide, while the shell is made of gold (Au).

The combination of these materials results in nanoparticles with unique magnetic, optical, electronic, and chemical properties. The use of gold as the shell material imparts surface plasmon resonance (SPR) properties and biocompatibility, while the LaSrMn core provides important functionalities such as high catalytic activity, magnetic properties, and electronic behavior, which can be tailored for specific applications.

Core Components and Their Properties:

Lanthanum Strontium Manganese (LaSrMn) Core:

Lanthanum (La), strontium (Sr), and manganese (Mn) are elements commonly used in the synthesis of perovskite-like structures or oxide-based materials, which have significant applications in catalysis, energy storage, and magnetic materials.

The LaSrMn core is often synthesized as a perovskite oxide (La₁₋ₓSrₓMnO₃) that exhibits strong magnetic properties (e.g., ferromagnetism or superparamagnetism) and electrochemical activity. These cores have high catalytic activity, making them useful in energy conversion processes (such as fuel cells or batteries) and environmental remediation.

Manganese in the core plays a crucial role in enhancing electronic conductivity and contributes to the material’s magnetic and catalytic properties. The strontium modification tunes the material’s electronic structure and oxidation states, which can enhance its stability and performance.

Gold (Au) Shell:

Gold (Au) is used as a protective shell due to its biocompatibility, chemical stability, and surface plasmon resonance (SPR) properties. The gold shell can significantly enhance the optical properties of the nanoparticles, especially for applications in surface-enhanced Raman spectroscopy (SERS) and imaging.

Gold’s ability to undergo surface functionalization allows for easy modification with biomolecules, such as antibodies, peptides, or DNA, which can be used in biosensing, drug delivery, and diagnostics.

The gold shell also helps protect the core from oxidation or degradation, improving the overall stability of the nanoparticles and expanding their range of potential applications, including in harsh environments.