One-step fluorescent immunoassay for quantitative measurement of 25-hydroxyvitamin D from whole blood samples with 15-minute turnaround time. Validated against Roche platform with linear range 5-100 ng/mL and within-run CV ≤8.5%.
Manufactured by
Sekbio Co., Ltd
Shenzhen, China
Sekbio Co., Ltd., dedicated to high-performance antibodies discovery and manufacturing. With proven expertise in innovative biomarker antibody development, Sekbio transforms scientific insight into scalable diagnostic solutions. Powered by our proprietary CHO cell line technology, Sekbio ensures consistent productivity and exceptional antibody quality, delivering gram-scale quantities for commercial and diagnostic use. Backed by dozens of successful IVD antibody development cases, we are recognized for our precision in antibody engineering, cell line development, and efficient tech transfer from R D to production. Our flexible expression systems, including transient and stable platforms, allow rapid customization and high-yield production. Certified under ISO 13485 and supported by state-of-the-art cleanroom facilities, Sekbio s quality management ensures global compliance and dependable performance. Collaborating closely with Sun Yat-sen University (SYSU), we continuously expand our pipeline with cutting-edge biomarkers such as MxA, HPV oncoprotein antibodies, sandwich vitamin D antibodies, and Chitinase-3-like-1. These innovations have advanced multiple diagnostic assays worldwide. Sekbio s end-to-end capabilities—from antibody discovery and recombinant protein design to CDMO services—empower partners with robust, ready-to-commercialize solutions. Trusted by over 100 IVD brands globally, Sekbio stands as your reliable partner in accelerating innovative biomarker development and advancing next-generation diagnostic excellence.
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OptiBio Co., Ltd. · South Korea
Point-of-care testing kit for rapid quantitative measurement of vitamin D levels using fluorescence immunoassay technology. Enables clinical assessment of vitamin D deficiency and monitoring in diverse healthcare settings with minimal sample preparation. Delivers results suitable for diagnosis and treatment guidance in bone health and metabolic disease management.
Nanjing Okay Biotechnology Co., Ltd. · China
A small molecule sandwich detection product for 25-hydroxyvitamin D (25-OH-VD) testing with superior analytical performance. It demonstrates correlation >0.98 with LC-MS/MS, with linear range up to 200 ng/mL and low-end detection sensitivity reaching 0.002 ng/mL. Signal gain amplitude is improved 15-45 fold compared to traditional methods. The product has obtained invention patent ZL202311497182.3.
Nanjing Poclight Biotechnology Co.,Ltd. · China
A homogeneous chemiluminescence immunoassay for measuring 25-hydroxy vitamin D levels in serum. Used to assess vitamin D status and identify deficiency in clinical practice.
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