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Elabscience® Launches PolyHRP-Streptavidin Conjugate for Enhanced Biomarker Detection

Elabscience® Bionovation Inc. has just announced a significant advancement in biomarker detection with the launch of its self-developed PolyHRP-Streptavidin conjugate. This innovative signal amplification reagent is tailored for enzyme-linked immunosorbent assays (ELISA), primarily focused on low-abundance biomarkers. Given the challenges researchers face in detecting minimal biomarker concentrations, the PolyHRP-Streptavidin conjugate aims to drastically improve detection sensitivity.

The Challenge of Low-Abundance Biomarkers

In the realm of biomedical research, detecting low-abundance biomarkers has always posed a notable challenge. Often, increasing signal output can inadvertently elevate background noise, complicating results. To tackle this issue, Elabscience® has engineered a solution based on its proprietary covalent polymerization technology. This technology results in a unique one-to-many amplification structure, which significantly boosts detection signals while keeping background interference at bay.

Superior Sensitivity and Stability

The newly developed PolyHRP-Streptavidin conjugate stands out against competitor products due to its exceptional sensitivity and stability. Elabscience® initiated its development focusing on improving ELISA performance. The conjugate begins with the polymerization of numerous highly active horseradish peroxidase (HRP) enzymes to create a PolyHRP backbone, which is subsequently conjugated to streptavidin. The end result is a robust enzyme-to-protein ratio, enabling a cascade signal amplification effect that can greatly enhance assay sensitivity.

Dr. Yang Fei, the General Manager of Elabscience®, highlighted the importance of both sensitivity and stability in ELISA reagent development. He stated, "When researchers work with low-abundance targets, having a reliable signal amplification tool is paramount. Our PolyHRP-Streptavidin conjugate is designed explicitly for this purpose, ensuring improved detection performance, low background interference, and sustained stability over time."

Validation and Testing Data

Validation studies conducted by Elabscience® underscore the high performance of the PolyHRP-Streptavidin conjugate. Analyzing three independent batches via Size Exclusion Chromatography-High-Performance Liquid Chromatography (SEC-HPLC) revealed an impressive recovery rate of nearly 90%, coupled with a peak area coefficient of variation of just 2.9%. This indicates a remarkable consistency across batches. In addition to this, the nanoparticle tracking analysis demonstrated a narrow particle size distribution centered at approximately 155 nm, further supporting the uniformity of the PolyHRP-Streptavidin polymer structure.

Internal testing has also proven that the PolyHRP-Streptavidin conjugate generates strong signal intensity while minimizing background signals. Accelerated stability tests at 37°C indicated that over 90% of the activity remains intact after 11 days, showcasing the reagent’s robust stability in high-temperature conditions.

Compatibility and Availability

The PolyHRP-Streptavidin conjugate is compatible with various ELISA workflows, including standard, high-sensitivity, and competitive assays. It is now introduced under Catalog No. E-ELIR-020, available in trial sizes of 50 μL and standard formats of 250 μL, with provisions for custom volumes exceeding 1 mL. The product is stored at -20°C with a two-year shelf life. Elabscience® also plans to launch a ready-to-use PolyHRP-Streptavidin detection reagent to further enhance the ease of implementation in routine and high-throughput ELISA applications.

About Elabscience® Bionovation Inc.

Founded in 2011, Elabscience® Bionovation Inc. focuses on the design, development, and sale of innovative research reagents and services for cell detection and life sciences applications. Their comprehensive product range is geared towards protein detection, immunoassays, metabolism analysis, and studies on cell function. Elabscience® has successfully established a strong presence, serving clients across more than 150 countries and regions worldwide. For additional information, visit www.elabscience.com and connect on LinkedIn, YouTube, Facebook, and Instagram.