Inorganic supports such as silica microspheres have become increasingly important for a variety of applications. They offer the combined benefits of working with a bead platform and the unique properties of a silica substrate, including: flexibility, large specific surface area, improved binding kinetics over planar surfaces, robust statistics, flexible silanization chemistries, unique refractive index and density, low autofluorescence, low nonspecific binding of many biomolecules, hydrophilicity, and easy manipulation.

Bangs offers a range of silica bead sizes (from ~0.15µm-5µm) to meet the requirements of a variety of applications.

Non-Fuctionalized Silica

SiO2 with natural hydroxyl or silanol (SiOH) surface groups for adsorption of nucleotides with low protein binding. Non-functionalized silica microspheres are available in these standard amounts: 0.5g, 1.0g, 1.5g, and 5.0g.

Catalog Code Diameter (µm) Product Data Sheet Safety Data Sheet
SS02N ≤ 0.49 PDS 702.pdf SDS SG140.pdf or SDS SG141.pdf (dry silica)
SS03N 0.50-0.99 PDS 702.pdf SDS SG140.pdf or SDS SG141.pdf (dry silica)
SS04N 1.00-2.49 PDS 702.pdf SDS SG140.pdf or SDS SG141.pdf (dry silica)
SS05N 2.50-4.99 PDS 702.pdf SDS SG140.pdf or SDS SG141.pdf (dry silica)
SS06N ≥ 5.00 PDS 702.pdf SDS SG140.pdf or SDS SG141.pdf (dry silica)

Carboxyl Silica

SiO2 with carboxyl (COOH) surface groups for the covalent attachment of biomolecules. Carboxyl silica microspheres are sold in 1.0g amounts. Supplied dry, they are available in these nominal mean diameters: ~0.5µm, ~1.0µm, ~2.0µm, and ~5.0µm.

Catalog Code Diameter (µm) Product Data Sheet Safety Data Sheet
SC02N ≤ 0.49 PDS 702.pdf SDS SG141.pdf
SC03N 0.50-0.99 PDS 702.pdf SDS SG141.pdf
SC04N 1.00-2.49 PDS 702.pdf SDS SG141.pdf
SC05N 2.50-4.99 PDS 702.pdf SDS SG141.pdf
SC06N ≥ 5.00 PDS 702.pdf SDS SG141.pdf

Amine Silica

SiO2 with amine (NH2) surface groups for the covalent attachment of biomolecules. Amine silica microspheres are sold in 1.0g amounts. Supplied dry, they are available in these nominal mean diameters: ~0.5µm, ~1.0µm, and ~5.0µm.

Catalog Code Diameter (µm) Product Data Sheet Safety Data Sheet
SA02N ≤ 0.49 PDS 702.pdf SDS SG141.pdf
SA03N 0.50-0.99 PDS 702.pdf SDS SG141.pdf
SA04N 1.00-2.49 PDS 702.pdf SDS SG141.pdf
SA05N 2.50-4.99 PDS 702.pdf SDS SG141.pdf
SA06N ≥ 5.00 PDS 702.pdf SDS SG141.pdf

Streptavidin-Coated Silica

SiO2 with a streptavidin-coated surface for the attachment of biomolecules. Silica streptavidin microspheres are sold in these standard volumes: 1mL, 2mL, 5mL, and 10mL. Available at 1% solids, in these nominal mean diameters: ~0.5µm, ~1.0µm, and ~5.0µm.

Catalog Code Product Data Sheet Safety Data Sheet
CS01N PDS 702.pdf SDS SG142.pdf

Silica Bind-IT™

Silica Bind-IT™ are pure SiO2 microspheres with a pre-activated surface that allows ready binding of antibody without sacrificing stability. Silica Bind-IT™ microspheres are sold in these standard volumes: 2mL, 5mL, and 10mL. Available at 2.5% solids, in two nominal mean diameters: ~1.0µm and ~5.0µm.

Catalog Code Diameter (µm) Product Data Sheet
SB04N 1µm PDS 737.pdf
SB06N 5µm PDS 737.pdf