Where can I buy 50-100 nm silica nanoparticles embedded with fluorophores that have an excitation peak ~445 nm?

12 December 2016 1 3K Report

I am looking for 50-100 nm fluorescent silica nanoparticles for 3D PTV experiments that works with our 445 nm laser. I have looked through various vendors website, but haven't found anything useful for me. Does anyone has any suggestions where can I find them?

Steingrimur Stefansson

Hi Chumki, you can chemically modify the surface of silica particles with amino silanes and then label them with amine reactive fluorescent dyes.

Alternatively, you could use quantum dots.

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