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How to monitor your biomagnetic separation process

Magnetic bead separation is being used in more and more applications (e.g. immunoassays, collection of genetic material, protein purification). Most of these applications are industrialized and therefore require quality control protocols, validation audits and standard operating procedures. Because of the economic implications, production mistakes are not acceptable, so products must demonstrate reproducibility in order to be viable.

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Why do magnetic beads move faster than expected?

The success of magnetic bead separation technology comes from its simplicity. Magnetic beads capture biomolecules and then they are extracted from the suspension. No filters are needed, there are no disposables, and there are no moving parts.

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Do you have full control of all your steps in your production process?

The cornerstone of any good production process is the ability to have robustness and reproducibility, especially in the biotech industry and in the magnetic bead separation industry.

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The 2 ways you can demagnetize your biomagnetic separation device

Since reproducibility over time is a highly desired trait when using biomagnetic separation, especially when used in the life sciences, it is important to consider all possible disruptions of consistency. Biomagnetic separation devices use permanent magnets which maintain their properties over long periods of time.

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Ensure 100% consistency from lot to lot

Biotech companies such as InVitro Diagnostic aim for 100% reproducibility in every single batch they produce and in every kit test in each batch. In fact, customers expect that they will receive a product that will perform exactly the same as the last time they purchased it. It does not matter what batch the product is or when it was produced.

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The 4 wrong ways to improve magnetic separation time (and 1 way to do it correctly)

It is vitally important for life sciences products to be consistent from lot to lot, so two batches of the same product produced in the same way should have little variability. In order to achieve a high level of quality control, one must define a strict standard operating procedure (SOP). In the case of a permanent magnet magnetic bead separation device, conditions are usually very stable and so the main parameter to control is the time the vessel is exposed to the magnetic field during production.

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How to avoid resuspension problems during biomagnetic separation processes

There are no easy ways to bypass steps or simplify the production process of magnetic bead separation. Steps in the production process that seem easy or easily bypassed, turn the production into a nightmare if one attempts to take short cuts. One of these seemingly easy steps is the resuspension step.

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The two critical points necessary to achieve homogeneous biomagnetic separation conditions

During the development of a magnetic bead separation process, scientists put great effort into reproducing the size of the beads, the magnetic charge on the beads, buffer composition, pH and temperature. What is often overlooked, however, is the importance of homogeneous biomagnetic separation conditions.

This post is about magnetic bead separation and how to validate this process. If you are interested in this topic, and are willing to learn more about it, download our Free Guide The Starting Guide to Validate Biomagnetic Separation Processes:

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The 2 basic points for understanding how magnetic separation works

Separation techniques using magnetic carriers (either beads or particles) are often used in the life sciences to ‘capture’ specific biomolecules. These techniques utilize immunocapture, DNA fragments, or electrical charge in order to specifically target the biomolecule of choice. After magnetic capture of the biomolecule, magnetic forces can separate it from the rest of the milieu. Because of the seeming ease of separation, biomagnetic techniques are used by some as the ‘gold standard’ of separation technology.

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The 6 key factors affecting the behavior of magnetic beads

Biomagnetic separation technology is being widely adopted in many biotech and other life science industries. The managers of these industries spend a lot of energy, time and resources choosing the correct beads for their applications, however they often overlook very important variables that need to be controlled pertaining to the magnetic bead separation process.

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