PSI-0.07COOH | Silica microparticles, carboxyl-modified surface, 70 nm diameter


These 70 nm diameter carboxyl-modified silica particles have broad application for ligand separation. They are stable in aqueous buffers and organic solvents and are easy to isolate or re-suspend.

More Information

Many of our silica particles can also be provided in powdered form. Please contact Advance Scientific to see if this product is available as a powder or to request a quotation for bulk quantities of this product in either format.

Silica microparticles up to 1.5 µm are monodisperse and non-porous. Microparticles larger than 1.5 µm are porous and have a wider size distribution.

The image associated with this microparticle is used for illustrative purposes only and is not representative of the physical characteristics of these silica microparticles.


Kisker Biotech
Mean particle diameter
70 nm
Surface chemistry
10 mL
25 mg/mL
Refractive index
1.45 ± 0.02 measured at 589 nm
Aqueous buffers and organic solvents
Hydrofluoric acid and strong basic media
Room temperature
Temperature resistance
Highly resistant up to 1000ºC
Product form
Supplied  in deionised water

About Us

Advance Scientific Products Pty Ltd is based in Queensland and is focused on delivering high-quality products and service to our customers in the life and analytical sciences across Australia.

The company was established in 2013 by experienced instrumentation specialists to provide full distribution and customer support capability to manufacturers seeking to expand their activities in Australia without having to create their own sales and marketing infrastructure.