Sekbio | Committed to making diagnostics more accurate

Supply Covid-19 antigen since Feb 2020

We have supplied grams of COVID-19 protein to global IVD brands, and our clients adopted our COVID-19 antibody pair to get FDA and BfArM approved. Millions of our client's rapid tests have been sold at home and abroad.

Our team was impressed by the day a German client shared that they published an article using our Covid-19 antibody, and we know what we do is valuable. We help you develop more accurate and affordable diagnostic tests!

Featured products

Covid-19 antibodies pair: Well-proven with high sensitivity; Bulk orders from global clients

Covid-19 uncut sheet: 10 pg/ml detection sensitivity; Massive supply each month; Competitive price


COVID-19 Protein Products


Product name



Mouse Anti-2019-ncov NP Antibody /1 mg

1 gram


Rabbit Anti-2019-ncov NP Antibody /1 mg

1 gram


Humanized anti-covid -19 mAb IgM protein N

Recombinant Spike Antigen (RBD)

For immunodiagnostic: ELISA, LFA, CLIA

Recombinant Nucleocapsid Antigen
Recombinant COVID-19 RBD-his Protein
Recombinant COVID-19 Spike T His Full Length Protein
Humanized anti-human COVID-19 mAb IgG protein N
Humanized anti-human COVID-19 mAb IgM protein N
Humanized anti-human COVID-19 mAb IgG protein S
Humanized Anti-human COVID-19 mAb IgM Protein S
Recombinant COVID-19 Spike 1 His Full Length Protein
Recombinant COVID-19 Spike 1 mFc Full Length Protein

COVID-19 Rapid Antigen POCT Test

The COVID-19 Rapid Antigen POCT Test can detect whether human samples contain the COVID-19 virus. The diagnosis is rapid and accurate, with low requirements for equipment and personnel. The double-antibody sandwich method uses two antigen-specific antibodies to identify and bind to a target. Different epitopes of the antigen can significantly reduce the probability of cross-reaction, thereby effectively improving its specificity.

Compared with nucleic acid testing, the most significant advantage of the COVID-19 Rapid Antigen POCT Test is detection speed. Its detection time is about 15 minutes, one-tenth of nucleic acid detection. And, it does not rely on equipment, laboratories, and human transportation; only test strips are required.