There are different tests and experiments which are done these days at different laboratories. In order to conduct these tests and experiments in the safest possible manner and to receive accurate outcome, we have to use the right kind of materials, vessels and other equipments. When it comes to the use of the aqueous solutions, the use of the iron oxide beads coated with silica is must. While using this, the overall stability of the magnetic NPs can be enhanced and this is very necessary. This type of coated silica also creates a scaffold that is very handy for different functional sections.

• Different methods are followed to prepare them

These silica coated beads can be prepared while following different methods. However, it’s the Stober process that is mostly preferred to produce this type of coated silica beads. While seeding a proper mixture of water and ethanol and while adding the catalyst like iron oxide and by adding the silica precursor, these coated silica beads are produced. Silica coating for the nano particles has become very vital these days. As silica is a photochemically stable material, chemically inert and transparent, while coating it on the iron oxide beads, proper micro particles can be formed. This helps to arrange or organize the plasmonic nano particles in a proper harmony in the periodic structures.

• Silica is everywhere

Amine-terminated magnetic silica beads are also in demand these days. Silica is the material that is chemically inert and transparent and that’s why it is used to coat the nano particles these days. Now you can avail these nano particles online in affordable price and use them for different applications.