Nano Magnetic Beads (100-500 nm)

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Product Introduction:
The size of nano magnetic beads provided by Alfa Chemistry varies from 100 nm to 500 nm. They are specially designed magnetic particles for the fields of biotechnology, life sciences and medical research. The surface of the magnetic beads can be modified with various coatings or functional groups to achieve specific binding to target molecules.

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Carboxyl Nano Magnetic Beads

Amino Nano Magnetic Beads

Silanol Nano Magnetic Beads

Streptavidin Nano Magnetic Beads

PEI Modified Nano-magnetic Beads

Carboxylated Dextran Coated Fe₃O₄ Nanoparticles

Hollow Magnetic Beads

Our Products

Carboxyl nano magnetic beads can be covalently coupled with biological ligands such as peptides, proteins, and antibodies under the action of chemical coupling reagents (e.g., EDC), and are used in immunochromatography, affinity purification, cell sorting, and biosensors.

Product Name	Catalog Number	Surface Group	Particle Size	Concentration	Solvent
100 nm Carboxyl Nano Magnetic Beads	NM-Mag001	-COOH	100±20 nm	10 mg/mL	Ultrapure water
200 nm Carboxyl Nano Magnetic Beads	NM-Mag002	-COOH	200±50 nm	10 mg/mL	Ultrapure water
300 nm Carboxyl Nano Magnetic Beads	NM-Mag003	-COOH	300±50 nm	10 mg/mL	Ultrapure water

Amino nano magnetic beads can be covalently coupled with biological ligands such as peptides, proteins, oligonucleotides, biological enzymes, and drug molecules through the action of chemical coupling reagents (e.g., glutaraldehyde), and can be used as a good basic material for functional modification.

Product Name	Catalog Number	Surface Group	Particle Size	Concentration	Solvent
100 nm Amino Nano Magnetic Beads	NM-Mag004	-NH₂	100±20 nm	10 mg/mL	Ultrapure water
200 nm Amino Nano Magnetic Beads	NM-Mag005	-NH₂	200±50 nm	10 mg/mL	Ultrapure water
300 nm Amino Nano Magnetic Beads	NM-Mag006	-NH₂	300±50 nm	10 mg/mL	Ultrapure water

Silanol nano magnetic beads can be used for nucleic acid extraction and purification of plants, animals, whole blood, serum free, saliva, viruses, bacteria, plasmids, soil, forensic samples, as well as PCR product purification and fragment sorting. They can be combined with automated nucleic acid extraction workstation for high-throughput and automatic operation.

Product Name	Catalog Number	Surface Group	Particle Size	Concentration	Solvent
100 nm Silanol Nano Magnetic Beads	NM-Mag007	-SiOH	100±20 nm	10 mg/mL	Ultrapure water
200 nm Silanol Nano Magnetic Beads	NM-Mag008	-SiOH	200±50 nm	50 mg/mL	Ultrapure water
300 nm Silanol Nano Magnetic Beads	NM-Mag009	-SiOH	300±50 nm	10 mg/mL	Ultrapure water

Streptavidin nano magnetic beads can be efficiently coupled with biotinylated peptides, proteins, antibodies and other biological ligands, and can be used for immunoassay, gene analysis and purification of PCR products.

Product Name	Catalog Number	Surface Group	Particle Size	Concentration	Solvent
100 nm Streptavidin Nano Magnetic Beads	NM-Mag010	SA	100±20 nm	10 mg/mL	Ultrapure water
200 nm Streptavidin Nano Magnetic Beads	NM-Mag011	SA	200±50 nm	10 mg/mL	Ultrapure water
300 nm Streptavidin Nano Magnetic Beads	NM-Mag012	SA	300±50 nm	10 mg/mL	Ultrapure water

PEI modified nano-magnetic beads have high specific surface area, high loading and high surface positive charge. The surface of the product has a large number of amino groups, which can be covalently coupled with biological ligands such as peptides, proteins, oligonucleotides, enzymes, and drug molecules through the action of chemical coupling reagents (e.g., glutaraldehyde), and can be used as a good basic material for functional modification.

Product Name	Catalog Number	Surface Group	Particle Size	Concentration	Solvent
100 nm PEI Modified Nano-magnetic beads	NM-Mag013	-NH₂	100±20 nm	1 mg/mL	Ultrapure water
200 nm PEI Modified Nano-magnetic beads	NM-Mag014	-NH₂	200±50 nm	1 mg/mL	Ultrapure water
300 nm PEI Modified Nano-magnetic beads	NM-Mag015	-NH₂	300±50 nm	1 mg/mL	Ultrapure water

Carboxylated dextran coated Fe₃O₄ nanoparticles are superparamagnetic. This type of magnetic nanoparticles can effectively ensure efficient coupling of antibodies and high anti-nonspecific adsorption, as well as homogeneity of reaction and consistency of detection. The product can be used in biomedical fields such as magnetic resonance imaging, magnetic separation, cell labeling and separation.

Product Name	Catalog Number	Surface Group	Particle Size	Concentration	Solvent
100 nm Carboxylated Dextran Coated Fe₃O4 Nanoparticles	NM-Mag016	Carboxylated dextran	100±20 nm	4 mg/mL	Ultrapure water

Hollow magnetic beads have the characteristics of high magnetism, low density and high specific surface area. In addition, their hollow portions can accommodate a large number of guest molecules or large-sized guests. These characteristics make hollow magnetic beads have important application prospects in many technological fields such as microwave absorbing materials and drug delivery.

Product Name	Catalog Number	Surface Group	Particle Size	Concentration	Solvent
400 nm Hollow Magnetic Beads	NM-Mag017	-OH	400±20 nm	10 mg/mL	Ultrapure water

You Need to Know

Before using magnetic beads, they should be thoroughly mixed to prevent changes in bead concentration during the usage and to avoid prolonged ultrasound damage to the surface of the magnetic beads.
After retrieving the magnetic beads, please perform magnetic separation and wash them 2-3 times with pure water or the specified buffer solution before use.
Unless otherwise stated, our nano magnetic beads are usually stored in a 4 °C refrigerator.