Producer
BBI Solutions
UK-based manufacturer of gold colloid and lateral flow assay reagents; headquartered in Crumlin, South Wales; ISO 13485:2015 certified; supplies gold nanoparticles used in over 500 million diagnostic assays globally per year; pioneer in commercial colloidal gold production for 30+ years; offers proprietary large-batch manufacturing with high particle uniformity; acquired IBEX Technologies (Canada) in 2024 and Biotez GmbH (Germany) to expand biochemistry capabilities; key supplier to Roche, Abbott, Siemens Healthineers and other major IVD manufacturers
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Colloidal Gold (Diagnostic Grade)
55%Lateral Flow Assay Components
30%Biochemistry (IBEX, Biotez)
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Origin2023
BBI Solutions in Crumlin, South Wales is the leading independent manufacturer of diagnostic-grade colloidal gold -- the gold nanoparticles that produce the visible colored lines in hundreds of millions of home pregnancy tests, COVID antigen tests, influenza tests, and other rapid point-of-care diagnostics every year. The characteristic pink-red color of the test line on a lateral flow assay is visible aggregated 40nm gold nanoparticles, manufactured in batch reactors using chemistry developed from Michael Faraday's 1857 gold colloid preparations. A South Wales company produces the gold nanoparticles in Roche, Abbott, Siemens, and private-label rapid test products sold globally -- the Welsh town of Crumlin is a quiet component of the global diagnostic infrastructure for everything from home pregnancy detection to HIV monitoring in sub-Saharan Africa.
BBI Solutions ↗