Ag SiO2 core shell Nanoparticle (Ag/SiO2, Purity: 99.9%, APS: 80-100nm)

Ag SiO2 core-shell Nanoparticle

Applications

Biomedical Applications

Drug Delivery and Controlled Release: The SiO₂ shell can be functionalized to allow for the controlled release of drugs. The porous nature of SiO₂ can encapsulate drugs or therapeutic agents, which can be released in a controlled manner, making these nanoparticles suitable for targeted drug delivery and controlled release systems.

Cancer Therapy: The plasmonic properties of the silver core can be used for photothermal therapy, where the nanoparticles are used to generate localized heat upon light irradiation, killing cancer cells. The SiO₂ shell provides stability and biocompatibility, making the system safer for in vivo applications.

Biosensing: Ag/SiO₂ nanoparticles are widely used in biosensors, leveraging the plasmonic resonance of silver for surface-enhanced Raman spectroscopy (SERS), immunoassays, and DNA detection. The SiO₂ shell can be functionalized with biomolecules, enhancing specificity and sensitivity.

Wound Healing: The antimicrobial properties of silver, combined with the biocompatibility of the SiO₂ shell, make Ag/SiO₂ nanoparticles useful for wound healing applications. They can be incorporated into wound dressings to prevent infection and promote faster healing.

Environmental Applications

Water Purification: The antimicrobial properties of the silver core can be utilized for water purification, where Ag/SiO₂ nanoparticles are used to remove bacteria and other pathogens from water sources. The SiO₂ shell provides stability and protects the silver from leaching, which ensures long-term use.

Pollutant Removal: The porous nature of the SiO₂ shell makes Ag/SiO₂ nanoparticles useful for adsorbing pollutants or organic molecules from water or air. They can be used in catalysis or environmental remediation to remove harmful substances.

Electronics and Optoelectronics

Nanoelectronics: The high electrical conductivity of the silver core makes Ag/SiO₂ nanoparticles suitable for applications in nanoelectronics, such as sensors, conductive coatings, and photodetectors.

Plasmonic Devices: The silver core’s plasmonic resonance can be exploited in the design of plasmonic sensors and optical devices. Ag/SiO₂ nanoparticles can enhance light absorption and improve the performance of devices like solar cells or photodetectors.

Surface-Enhanced Raman Spectroscopy (SERS): Due to their strong plasmonic properties, Ag/SiO₂ nanoparticles are used as SERS substrates to enhance Raman signals for highly sensitive detection of molecules in chemical analysis and biosensing.