We can supply everything from nitrocellulose membranes, backing cards, sample pads, conjugate pads, cassettes, pouches, and desiccants.

We stock many standard reagents for use in immunoassays. Blocking proteins such as high-grade Bovine serum albumin (BSA), secondary antibodies, and avidin biotin reagents. KBS can source diagnostic reagents from our trusted suppliers in order to save you time and cost.

K. Biosciences has decades of experience producing 20 & 40 nm colloidal gold ideal for applications with lateral flow and flow-through assays. Our colloidal gold is manufactured under ISO 13485 standards, giving consistent batch-to-batch quality and excellent sensitivity results for your assay needs.

In-house, gold colloids for rapid assays in 20 nm, 30nm and 40nm sizes. (Custom sizes available in bulk orders).

We can custom conjugate your protein (antibodies, antigens and proteins to any of our particles, gold.

We can custom laminate and cut your membrane.

We prepare custom-sprayed conjugate pads and membranes for all your assay needs! Adjustable dispense rate (charged by volume of protein/conjugate used) *customer-supplied protein not included