MA4500 - Amine Mag Beads - Functionalized Magnetic Beads - Magnetic Beads (50nm-4.5μm) - By Products Type
Contact: 858-689-8808



These are hydrophilic Mono Mag (4.5 µm) with amine groups. These surface groups allow covalent amide bond formation to proteins/peptides via primary amine or thiol groups.


  • Immediate and gentle coupling at low temperature and neutral pH
  • Narrow size distribution, CV≤5%
  • Significant low non-specific binding to proteins and nucleic acid
  • Better or comparable performance with Dynabeads M-450 Epoxy and Dynabeads M-450 Tosylactivated after activation by Sulfo-SMCC.

Typical SEM images of Mono Mag (4.5 µm) Beads


Ideal for isolation of cells. Immobilization of primary amine or thiol groups modified labile proteins/peptides and nucleic acids. Low non-specific binding of proteins and nucleic acids.


Product Description:Amine Modified Monodispersed Superparamagnetic Beads
DI Water, 0.05% NaN3, 0.01% Tween 20 
Concentration:30 mg/mL
Particle Size by SEM:4.5 μm
Surface Group:Amine
Functional Group Density:
0.1 mmol/g
Magnetic Content: >20%
Number of Beads in 1 mL: 6×108
Storage: 2-8 °C; Do not freeze. Keep vial upright.

Catalog# Product Unit Size Unit Price Quantity
MA4501 Amine Mono Mag Magnetic Beads-2 mL 2 mL $189.00
MA4502 Amine Mono Mag Magnetic Beads-10 mL 10 mL $569.00
MA4503 Amine Mono Mag Magnetic Beads-50 mL 50 mL $1,749.00
Particle Size 4.5
Product Description Amine Mono Mag Magnetic Beads, 4.5 µm
Surface Hydrophilic
Functionality Amine


1.1  Product identifiers

Product name:  Amine Mono Mag Magnetic Beads

Catalog Number:  MA0500 – MA4500

 1.2  Relevant identified uses of the substance or mixture and uses advised against

Identified uses:  Laboratory chemicals, Manufacture of substances

1.3  Details of the supplier of the safety data sheet

Company:  Ocean NanoTech

                     7964 Arjons Dr

                     Suite G

                     San Diego, CA 92126

Telephone:  858-689-8808

Fax:  858-689-8809

1.4  Emergency telephone number

Emergency Phone #:  +1-703-527-3887 (CHEMTREC)





1. Can the magnetic beads be sterilized?
Yes, carboxylic acid or amine functionalized and silica coated magnetic beads can be sterilized by washing with 70% ethanol. Protein conjugated beads cannot be sterilized.

2. Can the magnetic beads be sonicated?
Yes, short time sonication (couple seconds up to 5 minutes) is a good way to reduce aggregation of the beads and create homogenous conditions for coating or coupling. However, we don’t recommend to sonicate our magnetic beads over 10 min especially for protein conjugated beads. 

3. Are magnetic beads compatible with organic solvent?
Our magnetic beads are compatible for most polar solvent such as ethanol, methanol, acetone, isopropanol, dimethyl sulfoxide (DMSO), dimethylformamide (DMF), and acetonitrile.

4. Are magnetic beads compatible with urea?
Yes, they are compatible with 6–8 M urea.

5. Are magnetic beads compatible with EDTA?
Yes, our magnetic beads are compatible with EDTA.