Encapsulated nanoparticles
Colloidal nanoparticles can be encapsulated to prevent degradation and agglomeration. The addition of a protective layer ensures a clean spectroscopic pattern, preventing molecules leakage and contamination interferences, and a homogeneous signal intensity in case of Raman applications.
Most common encapsulation is the entrapment of the core metallic nanoparticle into a shell of silicon oxide (silica). Silica encapsulation provides particle stabilization, monodispersity and facilitates cargo capacity and molecular conjugation.
Characteristics of the encapsulated nanoparticles
- Quasi-spherical nanoparticles
- Silica-shell 5-30 nm
- High Raman cross-section for SERS NPs
- High colloidal stability
- Improved biocompatibility
Encapsulated nanoparticles
Non-encapsulated silver nanoparticles,
70 nm diameter
Encapsulated silver nanoparticles, 70 nm diameter, 5 nm silica-shell
Encapsulated silver nanoparticles, 70 nm diameter, 25 nm silica-shell
Example of our catalogue
Silica-shell silver nanoparticles
Unit Size: 1 mg
Catalog Núm. SiNP001-1MG
230€
