BIOLINK PW-G100: Redefining Density Gradient Preparation and Fraction Collection for High-Precision Centrifugation Workflows

Density gradient centrifugation remains a cornerstone technique in molecular biology, virology, and cell organelle separation. Yet, researchers in academic labs often struggle with time-consuming gradient preparation, manual collection errors, and limited detection resolution. The BIOLINK PW-G100 Density Gradient Preparation and Collection System introduces a fully integrated, automation-ready solution that elevates both the precision and reproducibility of your ultracentrifugation workflow.

Composed of two core modules — a rotational density gradient preparation unit and a full-spectrum optical collection system — the PW-G100 is engineered to meet the stringent demands of high-level academic research.

System Overview:

🔹 Part 1: Gradient Preparation Module
Utilizes a multi-angle rotational mixing principle to create highly uniform and reproducible gradients in just minutes. Compatible with commonly used density media such as sucrose, iodixanol, cesium chloride, and more than 10 gradient media types, this module is ideal for both rate-zonal and isopycnic centrifugation protocols.

🔹 Part 2: Full-Spectrum Fraction Collector
Post-centrifugation, the separated gradient is analyzed in real-time using a UV-visible full-spectrum detection system (200–1100 nm) powered by a 5W xenon lamp — requiring no warm-up time and offering over 1 billion activation cycles. The unique hydraulic aspiration mechanism enables smooth, undisturbed sample retrieval with intelligent fractionation, collection, and automated tubing cleaning to eliminate cross-contamination.

Why University Labs Choose BIOLINK PW-G100:

✅ Real-Time Optical Monitoring
• Adjustable wavelength detection (200–1100 nm)
• Enables precise identification of fraction bands and complex gradients
• Ideal for virus purification, exosome isolation, and organelle studies

✅ Programmable Gradient Protocols
• Each rotor supports ≥12 built-in gradient profiles
• Up to 30 programmable routines, with 10 sub-steps per protocol
• Speed, segment length, collection timing — all customizable

✅ Smart Sample Fractionation
• 1–99 individual bands per run
• Up to 10 sub-segments per band
• Fraction volume, flow rate, and piston motion are user-defined

✅ Fully Automated Cleaning
• Program-controlled tube flushing and air-drying
• No carry-over or contamination between samples

✅ Zero-Waste Collection Design
• Hydraulic-driven aspiration ensures gentle, disturbance-free sample acquisition
• Integrated software tracks every stage: gradient prep → optical detection → fraction collection

Technical Specifications (Snapshot):

Applications in University Labs:

🔬 Virology Labs — Density-based separation of virus particles, VLPs, lentiviral vectors
🧫 Cell Biology Departments — Organelle separation: mitochondria, nuclei, Golgi, lysosomes
🧪 Nanomedicine & Drug Delivery Labs — Isolation of liposomes, nanoparticles, EVs
📚 Biochemistry Teaching Labs — Demonstration of classical and modern centrifugation principles with live spectral feedback

Conclusion:

The BIOLINK PW-G100 provides university researchers with a robust, intuitive, and fully programmable platform for gradient preparation and fraction collection. By combining advanced optics, hydraulic control, and intuitive software into one system, it eliminates technical guesswork and elevates scientific reproducibility — from classroom instruction to cutting-edge research.

🎓 Ready to modernize your centrifugation workflow?
Contact us to schedule a virtual demo or request an academic quote.