Introduction
- Magnetic bead nucleic acid purification technology utilizes nano or micron superparamagnetic material as the matrix, often using black or yellowish-brown ferric oxide.
- The surface of the beads is coated with functional groups such as carboxyl, hydroxyl, or silicon groups, which facilitate nucleic acid adsorption.
- Silicon-based magnetic beads are the most common, working similarly to classical glass milk or glass fiber filter membrane purification methods.
- Magpure particles are polydisperse silica magnetic beads, comprising 50% ferric oxide at the core and 50% silica on the surface.
- This product serves various purposes including plasmid extraction, gel DNA recovery, product purification, genomic DNA and RNA extraction, as well as viral nucleic acid extraction.
Specifications
| Features | Specifications |
| Concentration | 100 mg/ml |
| Appearance | Suspension of black particles |
| Surface functional group | Si-OH, Silanol |
| Dispersibility | Polydisperse Amorphous |
| Particle size | 1.5-5 μm |
| Preservation conditions | Room Temperature, valid for up to 2 years. It is recommended to store at 2-8°C to prevent microbial growth. |
| Magnetic response speed | 15-30 seconds |
| Settling velocity | >5 minutes |
| High salt-mediated binding | >2M guanidine isothiocyanate, DNA recovery up to 80% |
| Alcohol mediated binding | 2M guanidine hydrochloride/isopropanol (30%), and the recovery of DNA / RNA was as high as 85% |
| PEG8000 mediated binding | The recovery of DNA/RNA was up to 85% |
| DNase/RNase | Not detected |
| DNA residue | <1 ppm |
| Recommended application | Plasmid extraction, gel DNA recovery, genomic DNA extraction, and RNA extraction. |
Principle
- High salt mediated binding: Magpure particles can selectively recover DNA molecules in solutions containing 2-4M guanidine isothiocyanate, while impurities like protein polysaccharides are not adsorbed.
- Alcohol-mediated binding: Magpure particles can selectively recover DNA/RNA molecules in solutions containing guanidine salt and alcohol (>25%), with proteins and other impurities not being adsorbed.
- After treating biological samples with a digestive solution or lysis buffer, DNA/RNA is released into the reagents from cells, organelles, and protein complexes (ribosomes and nucleosomes).
- Upon adding Magpure particles and binding solution, DNA/RNA adheres to the surface of the particles, forming the DNA/RNA bead complex.
- The magnetic field then separates and collects the magnetic beads, removing impurities such as protein with the waste liquid.
- Following two or three additional cleaning steps, the DNA/RNA magnetic bead complex is resuspended in sterilized water or TE buffer.
- DNA/RNA falls off from the surface of the magnetic beads, achieving purification.
Ordering information
| CAT.No. | Product Name | Package |
| C14100 | MagPure Particles | 100 ml |
| C14101 | MagPure Particles | 400 ml |
| C14102 | MagPure Particles | 3 x 400 ml |
| C14103 | MagPure Particles | 10 x 400 ml |
Purchase Guide
| Features | MagPure Particles | MagPure Particles N | MagPure Particles G | MagPure Particles F | MagBind Particles |
| Cat.No. | C1410 | C1411 | C1412 | C1414 | C1413 |
| Concentration | 100mg/ml | 70mg/ml | 40mg/ml | 50mg/ml | 10mg/ml |
| Form | Amorphous and Porous | Amorphous and Porous | Porous | Amorphous | Nonporous |
| Surface function | Si-OH, Silica Beads | Si-OH, Silica Beads | Si-OH, Silica Beads | Si-OH, Silica Beads | COOH, Carboxyl Beads |
| Dispersion | Polydisperse | Polydisperse | Monodisperse | Monodisperse | Monodisperse |
| Particle Size | 1.5-5μm | 0.2-2μm | 1-1.5μm | 0.2-1.5μm | 0.8-1μm |
| Color | Black | Yellowish Brown | Dark Brown | Dark Brown | Yellowish Brown |
| Magnetic response | 15-30s | ~60s | ~30s | 20s | 120s |
| Settling Time (1ml) | >5min | >10min | >3min | >3min | >2h |
| Usage (0.2ml Sample) | 20μl | 20μl | 20-30μl | 20-30μl | 20-30μl |
| DNA Recover Rate (only 4M GITC) | >80% | >80% | >80% | >80% | 0 |
| DNA Recover Rate (10% PEG8000/NaCl) | >85% | >85% | >85% | >85% | >90% |
| Recommended Use |
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- MagPure magnetic-particle technology combines the speed and efficiency of silica-based DNA purification with the convenience of magnetic particles.
- DNA binds to the silica surface of the magnetic particles in the presence of a chaotropic salt.
- Bound DNA is efficiently washed, significantly enhancing DNA purity.
- High-quality DNA is eluted from the magnetic particles.
- The automated purification procedure removes enzymes, nucleotides, and other contaminants and inhibitors completely.
- Purified DNA is ready for direct use in downstream applications, including sequencing and microarray analysis.
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