Plazmid tisztító mágneses rack 5μL PCR-től 50mL maxi-prep-ig

Researchers have long juggled separate magnetic racks for PCR cleanup, minipreps, and maxi-preps—each with different field strength and aggregation behavior. This fragmentation increases CVs, decreases recovery, and endangers valuable samples.

The plasmid purification market has a 10.66% CAGR and a valuation prediction of $5.13 billion by 2034. They need consistent high-purity DNA of a specific scale. It is an inefficient and costly process for labs that don't have a solution for micro-volume to 50 mL purification.

Hosszú fény technológia's MSG Magnetic Rack series closes this gap: one rack family covering 5 μL to 50 mL, with uniform field, low aggregation, and predictable results across the entire workflow.

The Hidden Cost Of Switching Magnetic Racks Mid-Workflow

Magnetic bead-based separation is widely recognized for its efficiency. As the Labroots webinar “The Irresistible Pull of Paramagnetic Beads” highlights, maximizing recovery, consistency, and speed is achievable with manual or automated protocols using SPRI technology, which uses paramagnetic beads to selectively bind nucleic acids by type and size. However, those benefits are fully realized only when the magnetic field itself is stable and predictable.

THE IRRESISTIBLE PULL OF PARAMAGNETIC BEADS

There are three main challenges posed by changing to different racks with different magnets:

•Inconsistent timing of separation: Beads will rush to the wall faster on one rack and slower on another, causing timeline disruptions.

•Inconsistent clumping of beads: Irreversible clumping of beads will entrap nucleic acids and decrease recoverability.

•Wide Range of Coefficients of Variation: Unpredictable results will cause multiple rounds of alternate runs, wasting materials and time.

In 2023, Scientific Reports published an article by Dr. Zhiyuan He and others detailing how variations in magnetic field geometry led to changes in bead behaviors with directed structures and separation rates. It is not an overstatement to say that the only way to achieve consistent results is by employing a Plasmid Purification Magnetic Rack that offers the same degree of magnetic constancy in any tube size.

Effect of transverse magnetic field on hot electron and

ion fluxes generated by laser interactions with disc-double-coil targets | Scientific Reports

MSG Series: Consistency of Magnetic Fields, Regardless of Tube Size

Achieving a uniform and stable magnetic field consistent across all tube types is the primary design goal of the MSG Series. It employs state-of-the-art permanent magnetic technology. The series includes four specifications, each engineered to share the same magnetic behavior:

•MSG-96: Micro-volume (5 μL–200 μL), compatible with 0.2 mL PCR tubes, strips, and 96-well plates.

•MSG-2: Small volume (10 μL–2 mL), for standard 1.5/2.0 mL microcentrifuge tubes.

•MSG-15: Medium volume (1 mL–15 mL), for 5 mL and 15 mL conical tubes.

•MSG-50: Large volume (5 mL–50 mL), for 50 mL conical tubes and cell culture plates.

This design consistency eliminates the need to re-optimize magnetic separation protocols when scaling up or down. A uniform field that reduces bead aggregation in a 50 μL PCR cleanup also predicts similar results in a 50 mL maxi-prep.

Design elements that affect reproducibility include:

•Reduced aggregation of magnetic beads: Magnetic uniformity leads to uniform motion to the wall of the tube in a representational band, not a clumped aggregation which negatively affects elution of beads.

•Improved recovery and consistent low CVs: Less aggregation results in tightening the CVs, meaning reduced artifact loss occurs at CVs, both within a single run and multiple subsequently run.

•Observable aggregation zones: Operators know extremely well the aggregation which occurs.

Ergonomic design: Intuitive hand-feel and positioning reduce operator fatigue during long processing runs.

Meeting the Market's Need For Scale And Automation

The demand for scalable magnetic separation is not academic. The global nucleic acid isolation and purification market, valued at $7.10 billion in 2025, is projected to advance at a CAGR of 9.1% through 2030. Within this market, automated platforms and scalable workflows are no longer optional—they are expected. As noted in industry analysis, there is a widespread adoption of automated purification platforms and clinical-grade workflows replacing manual methods, driven by growing demand from gene therapy and vaccine developers requiring consistent, scalable purification for regulated clinical use.

Effect of transverse magnetic field on hot electron and ion fluxes generated

by laser interactions with disc-double-coil targets | Scientific Reports

The MSG series is built with this automation trend in mind. Magnetic bead-based workflows are inherently automation-friendly. The same paramagnetic bead chemistry that works manually with MSG racks can be transferred to automated liquid handling systems without retooling the separation principle. Uniform operation and minimal aggregation features directly apply to automated environments with consistent bead capture to ensure dependable liquid handling and downstream analysis.

Numerous Applications in Research and Clinical Procedures

The MSG series of Magnetic Racks seamlessly integrates consistent magnetic separation over different volumes for multiple applications:

•Separation and purification of nucleic acids: extraction of DNA/RNA, purification of libraries and PCR, and nucleic acid extraction. When dealing with low input organisms such as cell free DNA (cfDNA), bead aquaculture techniques achieve significantly better recovery and larger precision than column methods, which is paramount when the starting material is from several 100 s of microlitres of plasma.

•Preparation of libraries for next generation sequencing (NGS): Extraction with magnetic beads is essential to the quality of the libraries and sequencing data to ensure nucleic acid purity and removal of PCR inhibitors.

•Separation of proteins as a method of purifying proteins and antibodies.

•Cell sorting: Enrichment and removal of magnetically labeled cells with CD34+ stem cells or T-cells.

The MSG-50 in particular meets the needs of labs performing plasmid maxi-preps from 50 mL bacterial cultures. This is a common stage for transfection-grade plasmid synthesis in gene therapy and protein expression. Also, the MSG-96 is suitable for high-throughput PCR cleanup and NGS library preparation in 96-well formats, indicating that the same equipment meets discovery-phase screening needs and production-purge needs.

Miért a Longlight technológia?

Longlight Technology concentrates on developing magnetic separation tools for all laboratory scales. The MSG Magnetic Rack series has been designed as a system of products where each product embodies the same design philosophy: a uniform magnetic field with low aggregation satisfying reproducibility in all of its outcomes. By eliminating the need to switch between incompatible racks, the MSG series reduces lab equipment costs, simplifies protocol transfer between scales, and, most importantly, protects sample integrity from the first microliter to the last milliliter.

A Final Word On Compatibility egynd Future Readiness

The MSG series is compatible with PCR tubes, strips, plates, microcentrifuge tubes, conical tubes, and cell culture plates. Its uniform magnetic field makes it a long-term solution for labs scaling from small-scale preps to GMP production or from manual to automated systems. Researchers tired of re-optimizing protocols when switching tube sizes get a straightforward answer: one Plasmid Purification Magnetic Rack design, one predictable outcome, from 5 μL to 50 mL. Visit www.longlight.com for details, quotes, or specs.

GYIK

Q1: What tube sizes can be used on the MSG Magnetic Rack?

A: MSG series products can accommodate different sizes (5 μL to 50 mL) including) PCR tube sizes (MSG-96), 1.5/2.0 mL tubes (MSG-2), 5/15 mL conical tubes (MSG-15) and 50 mL conical tubes, and cell culture plates (MSG-50).

Q2: Can the same rack be used for both the manual and automated workflow?

A: For sure. Low bead aggregation and uniformity of the magnetic field in the MSG series the same chemistry of beads can be used for different liquid handlers without having to make major changes in the system.

Q3: Is the MSG rack bead aggregation?

A: Yes. It's high-performance. A number of permanent magnets provide a uniform, stable field and decrease the bead aggregation, improving recovery and tightening CVs.

Q4: Is the MSG series compatible with third party magnetic beads?

A: Yes. The MSG racks are compatible with any sets of paramagnetic beads, which are used for nucleic acids, proteins, or cell separation.