Top 10 Silica Magnetic Bead Manufacturers Serving Europe in 2026

Quick Answer: Leading Silica Magnetic Bead Manufacturers Serving Europe

The leading silica magnetic bead manufacturers and nucleic acid purification technology suppliers serving Europe in 2026 include Cytiva, QIAGEN, Magtivio, Chemicell, SANYU, EURx, New England Biolabs, Promega, Bangs Laboratories and KleverLab.

These suppliers represent several different purchasing models:

• Standalone silica-coated magnetic beads;

• Magnetic silica particles for proprietary extraction buffers;

• Application-specific DNA and RNA extraction kits;

• OEM magnetic bead manufacturing;

• Manual and automated nucleic acid purification systems;

• Research-use and IVD-oriented raw material supply.

The most appropriate starting point depends on the intended project:

• Cytiva is a strong option for established SeraSil-Mag silica-coated particles, sensitive DNA extraction and OEM development.

• QIAGEN is particularly relevant to validated silica-based extraction workflows, high-molecular-weight DNA and automated sample preparation.

• Magtivio offers multiple MagSi-DNA particle sizes for open protocol development, automation and customized sample-preparation projects.

• Chemicell provides SiMAG magnetic silica particles and geneMAG extraction technologies for DNA and RNA purification.

• SANYU supplies customizable silica magnetic beads in development and commercial quantities.

• EURx offers GeneMAGNET silica-coated particles for manual and automated DNA/RNA purification.

• New England Biolabs supplies silica-coated Monarch Mag Beads and complete nucleic acid extraction workflows.

• Promega provides MagneSil particles and established genomic DNA, plasmid and sequencing cleanup systems.

• Bangs Laboratories manufactures Magnefy Mach I Silica particles for silica-based nucleic acid isolation and custom diagnostic development.

• KleverLab offers ExtraMag silica-coated superparamagnetic beads and supporting molecular diagnostic reagents.

This ranking is an editorial sourcing guide. It is based on publicly available product information, relevance to silica-based nucleic acid purification, standalone bead availability, automation compatibility, customization and potential commercial supply.

It is not an audited market-share ranking, revenue ranking or independent laboratory comparison.

“Serving Europe” does not mean that every company manufactures its particles inside the European Union. It means that the supplier may be considered by European laboratories, IVD developers and biotechnology companies, subject to current availability, import arrangements and regulatory suitability.

SANYU is the only Chinese manufacturer included in this ranking.

How We Selected the Top 10 Manufacturers

Confirmed silica or silanol surface chemistry

Priority was given to suppliers that explicitly identify their products as:

• Silica-coated magnetic particles;

• Magnetic silica beads;

• Silanol-functionalized magnetic beads;

• Silica-shell superparamagnetic particles;

• Silica-based magnetic nucleic acid purification systems.

This distinction matters because not every magnetic bead used for nucleic acid purification is a silica magnetic bead.

Carboxylated SPRI particles, oligo(dT) beads and affinity-coated magnetic particles can also capture nucleic acids, but they rely on different surface chemistries and binding mechanisms.

Relevance to DNA and RNA extraction

The selected suppliers publicly position their beads or purification systems for one or more of the following applications:

• Genomic DNA extraction;

• High-molecular-weight DNA purification;

• Total RNA isolation;

• Viral DNA and RNA extraction;

• Plasmid purification;

• PCR product cleanup;

• Cell-free DNA or RNA extraction;

• NGS sample preparation;

• Molecular diagnostic sample preparation.

Standalone bead availability

Additional consideration was given to companies that sell magnetic particle suspensions separately from complete extraction kits.

Standalone beads are particularly important to:

• IVD reagent manufacturers;

• OEM extraction kit developers;

• Automated instrument manufacturers;

• Laboratories developing proprietary buffer systems;

• Companies qualifying an alternative raw material source.

Automation compatibility

Silica magnetic beads are widely used in automated sample preparation because magnetic separation eliminates many centrifugation and filtration steps.

The evaluation considered compatibility with:

• Magnetic rod extractors;

• 96-well extraction platforms;

• Liquid-handling workstations;

• Open robotic systems;

• Microfluidic systems;

• Proprietary molecular diagnostic analyzers.

Customization and scale-up

Manufacturers received additional consideration when they offered one or more of the following:

• Customized particle diameter;

• Customized solids concentration;

• Alternative suspension buffers;

• Surface modification;

• Bulk packaging;

• OEM production;

• Private labeling;

• Commercial manufacturing;

• Quality agreements;

• Advance change notification.

European procurement suitability

European buyers may prefer suppliers offering:

• EU-based manufacturing or distribution;

• Shorter transport routes;

• European-language documentation;

• Technical support within European time zones;

• Reliable customs and VAT handling;

• IVDR-related supplier documentation;

• Stable commercial supply.

However, local location alone does not guarantee superior bead performance. Final selection should be based on extraction yield, purity, automation behavior, lot consistency and long-term supply.

Comparison of the Top 10 Silica Magnetic Bead Manufacturers

Top 10 Silica Magnetic Bead Manufacturers Serving Europe in 2026

1. Cytiva

Cytiva supplies SeraSil-Mag silica-coated superparamagnetic beads for nucleic acid isolation.

The particles are designed to provide a silica binding surface combined with rapid magnetic collection. Cytiva positions SeraSil-Mag for high-purity DNA extraction in sensitive applications, including situations where only small or trace quantities of nucleic acid are available.

Main products

Relevant products include:

• SeraSil-Mag 400;

• SeraSil-Mag 700;

• Laboratory and bulk package sizes;

• Silica-coated superparamagnetic bead suspensions;

• Customized Sera-Mag particle services.

SeraSil-Mag products are available in different nominal particle sizes, allowing developers to compare surface area, suspension behavior and magnetic separation characteristics.

Cytiva also supports customized particle dimensions, conjugation and quality-control specifications for commercial kit manufacturers.

Suitable applications

SeraSil-Mag may be evaluated for:

• Low-input DNA extraction;

• Genomic DNA purification;

• Liquid-biopsy sample preparation;

• NGS workflows;

• Molecular diagnostic extraction;

• Manual bead-based purification;

• Automated nucleic acid extraction;

• OEM diagnostic reagents.

Cytiva identifies biofluids, liquid-biopsy samples and diagnostic extraction as relevant SeraSil-Mag applications.

Key strengths

• Established international particle platform;

• True silica-coated magnetic beads;

• Multiple particle sizes;

• Fast magnetic response;

• Standalone bead availability;

• OEM and customization support;

• European distribution infrastructure.

Best suited for

Cytiva is particularly suitable for European IVD manufacturers seeking an established raw particle platform, international technical support and a development path from laboratory evaluation to commercial supply.

Points to confirm

Before qualification, request:

• Current particle specifications;

• Binding-capacity information;

• Magnetic separation data;

• Lot-release documentation;

• Available commercial package sizes;

• Change-notification terms;

• Custom manufacturing lead time;

• Quality-agreement availability.

2. QIAGEN

QIAGEN’s MagAttract technology combines silica-based nucleic acid purification with magnetic particle handling.

Under suitable chaotropic conditions, nucleic acids bind to the silica surface of the magnetic particles. After magnetic separation and washing, purified nucleic acids are released using low-salt elution conditions.

Main products and platforms

Relevant products include:

• MagAttract Suspension G;

• MagAttract HMW DNA Kit;

• MagAttract Viral RNA products;

• MagAttract DNA purification systems;

• Automated BioSprint and related workflows;

• Application-specific magnetic particle protocols.

Suitable applications

QIAGEN’s MagAttract technology may be evaluated for:

• Genomic DNA extraction;

• High-molecular-weight DNA;

• Viral RNA purification;

• Blood, cell and tissue samples;

• Plant DNA extraction;

• Long-read sequencing;

• Automated nucleic acid purification;

• Research and diagnostic workflow development.

The MagAttract HMW DNA Kit is designed to isolate high-molecular-weight genomic DNA from samples including blood, cells, tissues and bacteria. QIAGEN reports recovery of DNA above 150 kb in its published product information.

Key strengths

• Extensive nucleic acid purification experience;

• Silica-based magnetic particle platform;

• Broad sample-specific workflow selection;

• HMW DNA capabilities;

• Manual and automated extraction;

• European commercial infrastructure;

• Detailed supporting protocols.

Best suited for

QIAGEN is particularly relevant when the customer prefers an integrated extraction system with validated buffers, enzymes and sample-specific procedures.

Points to confirm

Buyers should determine:

• Whether the required project uses standalone Suspension G or a complete kit;

• Whether proprietary buffers are required;

• Whether commercial further manufacturing is permitted;

• Available bulk packaging;

• Automation restrictions;

• OEM support;

• Intended-use and regulatory status.

3. Magtivio

Magtivio is a European magnetic sample-preparation specialist offering MagSi magnetic silica bead products, extraction kits, magnetic separators and automated systems.

Its MagSi-DNA particles are designed as solid support phases for nucleic acid purification using a bind–wash–elute workflow. The company offers several bead sizes and magnetic characteristics for protocol development.

Main products

The MagSi-DNA range includes:

• MagSi-DNA 600;

• MagSi-DNA allround;

• MagSi-DNA 3.0;

• MagSi-DNA mf;

• Carboxylated magnetic silica variants;

• Trial kits for comparative testing;

• Nucleic acid extraction kits;

• Magnetic separation and PurePrep automation products.

Published product information lists particle options around 600 nm, 1.2 µm and 3 µm, together with ferrimagnetic formats intended for microfluidic or chip-based applications.

Suitable applications

• Genomic DNA extraction;

• Total nucleic acid purification;

• Blood and cell samples;

• Pathogen DNA and RNA;

• Manual extraction;

• Magnetic rod instruments;

• Microplate automation;

• Microfluidic systems;

• Protocol development;

• OEM extraction projects.

Key strengths

• European magnetic bead specialist;

• Multiple silica particle sizes;

• Different suspension and separation profiles;

• Standalone beads and complete kits;

• Automation hardware;

• Trial kit for bead screening;

• Protocol-development support.

Best suited for

Magtivio is particularly suitable for European companies developing open extraction protocols and needing to compare several bead sizes before selecting a commercial particle.

Points to confirm

Ask for:

• Exact silica surface specification;

• Particle-size distribution;

• Magnetic content;

• Suspension time;

• Separation time;

• Available bulk volume;

• OEM terms;

• IVD versus research-use product status.

4. Chemicell

Chemicell manufactures SiMAG magnetic silica particles and geneMAG nucleic acid purification products.

The SiMAG platform includes magnetic silica beads with porous or nonporous surfaces and different magnetic properties. Chemicell positions these particles for DNA/RNA purification, biomolecule adsorption and biochromatography.

Main products

Relevant products include:

• SiMAG/MP-DNA;

• SiMAG Basic;

• Silanol-functionalized magnetic silica particles;

• geneMAG-DNA extraction products;

• geneMAG-RNA/DNA products;

• Sample-specific DNA purification kits.

SiMAG/MP-DNA beads were developed for automatic separation of genomic DNA, plasmid DNA, total RNA and PCR products.

Suitable applications

• Genomic DNA extraction;

• Plasmid DNA purification;

• Total RNA isolation;

• PCR product purification;

• Blood DNA extraction;

• Saliva DNA extraction;

• Bacterial DNA purification;

• Manual and automated sample preparation.

Chemicell also offers sample-specific geneMAG kits using magnetic silica beads for blood, saliva, bacteria and combined RNA/DNA isolation.

Key strengths

• European particle manufacturer;

• Porous and nonporous silica surfaces;

• Raw beads and complete extraction products;

• Multiple surface chemistries;

• Automation-oriented particles;

• Broad biomagnetic product portfolio.

Best suited for

Chemicell is well suited to European laboratories and OEM developers seeking magnetic silica particles from a specialized particle manufacturer rather than only a complete extraction kit supplier.

Points to confirm

Request:

• Current SiMAG catalog specifications;

• Recommended binding chemistry;

• Particle concentration;

• Binding capacity;

• Magnetic separation time;

• Scale-up volume;

• Lot consistency;

• Commercial-use and OEM terms.

5. SANYU

SANYU manufactures functional microspheres and magnetic beads for nucleic acid purification, molecular diagnostics, biotechnology and IVD reagent development.

Its silica magnetic bead portfolio includes silica-coated magnetic particles in nano- and microscale formats. The company supports customization of particle size, concentration, surface characteristics, dispersion medium and packaging.

SANYU is the only Chinese manufacturer included in this ranking.

Main products

A representative SANYU product is AMS200-10, a nominally 200 nm silica magnetic bead supplied as a 5% solids aqueous suspension.

Public product information lists package options ranging from small development volumes to larger commercial packages and positions the beads for DNA extraction, RNA extraction, molecular diagnostics, PCR preparation and automated magnetic separation.

Customization capabilities

SANYU offers customization involving:

• Particle diameter;

• Solids concentration;

• Surface modification;

• Suspension formulation;

• Packaging volume;

• OEM manufacturing;

• Bulk production support.

Suitable applications

SANYU silica magnetic beads may be evaluated for:

• Genomic DNA extraction;

• Total RNA purification;

• Viral DNA and RNA extraction;

• Microbial nucleic acid purification;

• Molecular diagnostic reagent development;

• PCR sample preparation;

• NGS sample preparation;

• Automated nucleic acid extraction;

• OEM extraction kits.

Key strengths

• Direct bead manufacturing;

• Standalone raw particle supply;

• Custom particle dimensions;

• Multiple packaging options;

• OEM and ODM support;

• Factory-direct technical communication;

• Sample-to-commercial-volume supply;

• Flexible formulation development.

Best suited for

SANYU is particularly suitable for European extraction kit manufacturers seeking:

• A customized raw silica bead;

• An alternative or second-source material;

• Factory-direct supply;

• Custom concentration or packaging;

• OEM and private-label production;

• Flexible commercial quantities.

Points to confirm

Before commercial qualification, request:

• Particle-size distribution;

• Silica coating characterization;

• Magnetic response;

• Binding-capacity data;

• Solids concentration;

• Bead carryover data;

• Microbial-control information;

• Shelf life;

• Lot-release specifications;

• Change-notification policy;

• EU import and customs documentation.

6. EURx

EURx supplies GeneMAGNET Magic Beads, which are silica-coated superparamagnetic particles for nucleic acid purification.

The beads are designed for double-stranded DNA, single-stranded DNA, RNA isolation and PCR cleanup. EURx identifies both manual and automated applications.

Product characteristics

Published GeneMAGNET specifications include:

• Silica-coated superparamagnetic particles;

• Concentration of 50 mg/mL;

• DNA/RNA binding capacity above 20 µg per milligram of beads;

• Manual and automated compatibility;

• Recommended storage at 2–8°C;

• Shipment conditions of 2–25°C;

• Use with high-salt and ethanol-based binding chemistry.

Suitable applications

• Genomic DNA purification;

• RNA isolation;

• PCR cleanup;

• Manual extraction;

• Automated nucleic acid purification;

• Development of proprietary extraction buffers;

• Laboratory and molecular biology workflows.

Key strengths

• European manufacturing and supply;

• Standalone bead availability;

• Published concentration and binding-capacity information;

• Manual and automated use;

• Supporting extraction buffers and kits;

• Convenient supply for European laboratories.

Best suited for

EURx is particularly relevant to European research and biotechnology laboratories that want standalone silica magnetic beads from an EU-based molecular biology supplier.

Points to confirm

Commercial buyers should ask about:

• Bulk packaging;

• Standard production batch size;

• DNase/RNase control;

• Lot-release criteria;

• OEM availability;

• IVD further-manufacturing support;

• Quality agreements;

• Advance change notification.

7. New England Biolabs

New England Biolabs supplies Monarch Mag Beads M1 and M2 and integrates silica-coated magnetic beads into multiple DNA and RNA purification products.

NEB states that Monarch Mag Beads M1 and M2 use silica coatings with silanol groups for nucleic acid binding. Their submicron format is intended to provide high surface area and rapid magnetic separation.

Main products and workflows

Relevant products include:

• Monarch Mag Beads M1;

• Monarch Mag Beads M2;

• Genomic DNA extraction kits;

• Viral DNA/RNA extraction products;

• PCR and DNA cleanup products;

• Cell-free DNA extraction;

• Cell-free RNA extraction;

• Manual and automated workflows.

NEB introduced dedicated cell-free DNA and cell-free RNA extraction workflows using silica-coated magnetic beads for plasma and related low-concentration samples.

Suitable applications

• Genomic DNA extraction;

• Viral nucleic acid purification;

• Cell-free DNA;

• Cell-free RNA;

• PCR cleanup;

• Sequencing preparation;

• Manual extraction;

• Automated liquid-handling workflows.

Key strengths

• Clearly identified silica-coated particles;

• Standalone bead products;

• Complete extraction kits;

• Extensive protocol documentation;

• Strong molecular biology support;

• Broad downstream application compatibility.

Best suited for

NEB is particularly suitable for laboratories that want both standalone silica beads and complete, documented workflows for comparison during development.

Points to confirm

Ask about:

• Differences between M1 and M2;

• Bulk supply;

• OEM rights;

• Commercial diagnostic suitability;

• Binding capacity;

• Sample-specific recovery;

• Instrument scripts;

• Long-term product continuity.

8. Promega

Promega develops MagneSil paramagnetic particle technology for genomic DNA, plasmid DNA and sequencing-reaction purification.

MagneSil paramagnetic particles can be purchased separately and are also supplied as components of established purification systems.

Main products and platforms

Relevant products include:

• MagneSil Paramagnetic Particles;

• MagneSil Blood Genomic systems;

• MagneSil PMPs—Fixed Yield;

• Wizard MagneSil Plasmid systems;

• MagneSil GREEN sequencing cleanup;

• High-throughput automated workflows.

Promega has documented automated genomic DNA purification using MagneSil particles in 96-well workflows on liquid-handling systems.

Suitable applications

• Genomic DNA extraction;

• Blood DNA purification;

• Plasmid DNA isolation;

• Sequencing cleanup;

• High-throughput sample preparation;

• Automated extraction;

• Laboratory-developed purification methods.

Key strengths

• Established nucleic acid purification technology;

• Standalone particle availability;

• Application-specific kits;

• High-throughput automation experience;

• Detailed technical documentation;

• Broad European distribution.

Best suited for

Promega is particularly relevant to European laboratories seeking a well-documented purification platform for genomic DNA, plasmids and sequencing applications.

Points to confirm

Commercial developers should clarify:

• Exact surface chemistry of the selected MagneSil product;

• Research-use restrictions;

• Further-manufacturing rights;

• Bulk package sizes;

• Quality-agreement availability;

• Long-term supply arrangements;

• OEM development support.

9. Bangs Laboratories

Bangs Laboratories manufactures magnetic, silica and polymer microspheres for diagnostics, life sciences and custom assay development.

Its Magnefy Mach I Silica particles are approximately 1 µm magnetic beads encased in a silica shell and designed for solid-phase nucleic acid extraction using silica-based or Boom-method chemistry.

Main product characteristics

Magnefy Mach I Silica particles offer:

• Approximately 1 µm particle size;

• Silica shell;

• High surface area;

• Rapid magnetic separation;

• Standalone particle suspension;

• Compatibility with DNA and RNA isolation workflows.

Bangs also manufactures alternative magnetic particle surfaces for SPRI cleanup, affinity capture and other molecular assay applications. Buyers should ensure that the selected product is the silica version rather than a carboxylated SPRI product.

Suitable applications

• Genomic DNA extraction;

• Total nucleic acid purification;

• PCR and qPCR sample preparation;

• NGS workflows;

• Automated extraction;

• Diagnostic reagent development;

• Custom OEM particle projects.

Key strengths

• Specialized microsphere manufacturer;

• Explicit silica-shell product;

• Rapid magnetic response;

• Diagnostic application expertise;

• Custom synthesis and surface engineering;

• Commercial scale-up support.

Best suited for

Bangs Laboratories is particularly suitable for European IVD developers seeking a customized particle or detailed collaboration on bead design and assay integration.

Points to confirm

Request:

• Current product specifications;

• Binding capacity;

• Magnetic separation profile;

• Available concentration;

• Standard package sizes;

• Bulk production capacity;

• Stability data;

• EU shipping arrangements;

• Quality and change-control terms.

10. KleverLab

KleverLab is a European biotechnology supplier offering molecular diagnostic products, nucleic acid purification kits and standalone extraction reagents.

Its ExtraMag product consists of silica-coated superparamagnetic particles intended for rapid and high-throughput nucleic acid extraction.

Main product characteristics

Published ExtraMag information includes:

• Average particle size of approximately 1 µm;

• Silica-coated superparamagnetic construction;

• Concentration of 25 mg/mL;

• Rapid magnetic separation;

• High-throughput extraction positioning;

• Use for DNA and RNA purification.

KleverLab also markets itself as a European biotechnology company offering OEM and customized solutions, with ISO 9001 and ISO 13485 certifications stated on its website.

Suitable applications

• DNA extraction;

• RNA extraction;

• High-throughput purification;

• Manual protocols;

• Automated extraction;

• Molecular diagnostic reagent development;

• OEM extraction solutions.

Key strengths

• European supplier;

• Standalone silica magnetic beads;

• Molecular diagnostic product portfolio;

• OEM and customization services;

• Supporting enzymes and purification reagents;

• Potentially shorter European supply routes.

Best suited for

KleverLab is relevant to European molecular diagnostic developers seeking beads, buffers, enzymes and PCR reagents from one regional supplier.

Points to confirm

Request:

• Current ExtraMag specification;

• Binding-capacity test method;

• Lot-release criteria;

• RNase/DNase controls;

• Commercial batch size;

• Bulk packaging;

• IVD intended-use status;

• Quality-agreement availability.

How Silica Magnetic Beads Extract DNA and RNA

Silica magnetic beads combine a nucleic acid-binding surface with a magnetic core.

The silica or silanol-rich surface binds nucleic acids under suitable chemical conditions, while the magnetic component allows the particles to be collected without centrifugation.

The basic process includes five stages.

1. Sample lysis

Cells, viruses, bacteria or tissues are disrupted to release nucleic acids.

The lysis formulation may contain:

• Chaotropic salts;

• Detergents;

• Proteinase K;

• Reducing agents;

• Carrier RNA;

• Nuclease inhibitors.

2. Nucleic acid binding

The lysate is mixed with silica magnetic beads under high-salt conditions, frequently with an alcohol.

These conditions promote adsorption of DNA or RNA onto the silica surface.

Silica magnetic purification systems commonly use a bind–wash–elute workflow in which nucleic acids bind under high-salt conditions and are released under low-salt conditions.

3. Magnetic separation

A magnetic rack, magnetic rod or automated extractor collects the particles.

The supernatant containing proteins, lipids, inhibitors and cellular debris can then be removed.

4. Washing

The bead–nucleic acid complex is washed while DNA or RNA remains attached.

Washing removes substances such as:

• Proteins;

• Detergents;

• Chaotropic salts;

• Lipids;

• Heme;

• Polysaccharides;

• PCR inhibitors.

5. Elution

Water or a low-salt buffer releases the purified nucleic acid.

The eluate can then be used in:

• PCR;

• RT-qPCR;

• Digital PCR;

• Sequencing;

• Cloning;

• Hybridization;

• Other enzymatic workflows.

The bead cannot be evaluated independently from the buffer system, magnet, mixing program, sample matrix and automation platform.

Which Manufacturer Is Best for Your Application?

Best for established OEM and commercial IVD projects

Cytiva, SANYU and Bangs Laboratories are strong starting points when the buyer needs standalone particles, technical collaboration and a potential path toward commercial-volume supply.

Cytiva offers an established global platform, SANYU emphasizes flexible customization, and Bangs specializes in custom particle development.

Best for European raw-bead sourcing

Magtivio, Chemicell, EURx and KleverLab provide relevant European options.

They may offer advantages involving:

• Shorter lead times;

• Easier communication;

• Simplified European delivery;

• Regional technical support;

• Reduced import complexity.

The final choice must still be based on extraction performance rather than geographic proximity alone.

Best for validated kit-based workflows

QIAGEN, NEB and Promega are particularly relevant when the buyer prefers optimized buffers, established protocols and application-specific extraction products.

These systems may reduce development time but can offer less flexibility than purchasing standalone beads and developing proprietary chemistry.

Best for high-molecular-weight DNA

QIAGEN’s MagAttract HMW platform is specifically designed for high-molecular-weight genomic DNA.

HMW DNA performance also depends on gentle lysis, controlled mixing and limited mechanical shearing.

Best for cfDNA and cfRNA

NEB provides dedicated Monarch cell-free DNA and cell-free RNA workflows.

Cytiva also positions SeraSil-Mag for low-input and liquid-biopsy-related DNA extraction applications.

Best for comparing particle sizes

Magtivio offers several MagSi particle diameters, while SANYU supports customized particle sizing.

Smaller particles may provide more surface area and improved suspension stability, while larger particles may separate faster. The optimum balance depends on the magnet, viscosity, instrument and dispensing process.

Best for open automated extraction

Magtivio, EURx, SANYU and KleverLab are relevant to developers building open-platform extraction protocols around their own buffers and instruments.

Important Specifications to Compare

Particle diameter

Particle size affects:

• Available surface area;

• Nucleic acid-binding kinetics;

• Sedimentation;

• Dispensing uniformity;

• Magnetic separation speed;

• Bead carryover;

• Automation performance.

The nominal diameter alone is insufficient. Request the particle-size distribution and coefficient of variation.

Silica coating

A consistent silica layer influences:

• Nucleic acid binding;

• Surface uniformity;

• Chemical stability;

• Exposure of the magnetic core;

• Downstream PCR inhibition;

• Lot-to-lot performance.

Ask how the manufacturer measures and controls silica coating consistency.

Solids concentration

The concentration of beads affects:

• Binding capacity per microliter;

• Dispensing volume;

• Extraction cost;

• Suspension stability;

• Automation design.

Compare products on both price per milliliter and effective bead mass.

Magnetic response

Magnetic separation should be evaluated using the actual:

• Tube or well;

• Sample volume;

• Magnet;

• Extraction instrument;

• Lysate viscosity;

• Bead concentration.

A separation time measured in water may not predict performance in blood, stool or viscous tissue lysate.

Suspension stability

Rapid sedimentation can cause inconsistent dispensing across plates or cartridges.

Evaluate:

• Settling rate;

• Ease of redispersion;

• Mixing requirements;

• Uniformity during automated dispensing;

• Particle aggregation.

Nucleic acid recovery

Measure recovery using the intended:

• Nucleic acid type;

• Fragment-size range;

• Sample matrix;

• Input concentration;

• Elution volume;

• Downstream assay.

A bead optimized for genomic DNA may not provide equivalent recovery of small RNA or short cfDNA.

Bead carryover

Residual magnetic particles in the eluate may interfere with:

• Optical measurements;

• PCR;

• RT-qPCR;

• Enzyme reactions;

• Sequencing;

• Microfluidic analysis.

Evaluate carryover with the actual magnet and automation program.

How to Choose a Supplier for the European Market

Define the target product profile

Before contacting suppliers, specify:

• Target DNA or RNA;

• Sample matrix;

• Required recovery;

• Required purity;

• Fragment-size range;

• Bead diameter;

• Solids concentration;

• Magnetic separation time;

• Automation platform;

• Annual demand;

• Regulatory market.

Separate raw bead suppliers from kit suppliers

Raw bead manufacturers provide greater formulation flexibility.

Complete kit suppliers provide:

• Optimized buffers;

• Established protocols;

• Sample-specific workflows;

• Faster implementation.

The appropriate model depends on whether the buyer is developing proprietary extraction chemistry or purchasing a ready-to-use system.

Review EU distribution

Confirm:

• EU warehouse availability;

• Shipping origin;

• Delivery lead time;

• Minimum order quantity;

• VAT handling;

• Import responsibility;

• Temperature-controlled shipping;

• Local technical support.

Compare total cost of ownership

The lowest bead price may not produce the lowest extraction cost.

Consider:

• Bead consumption;

• Binding-buffer cost;

• Wash-buffer consumption;

• Magnetic separation time;

• Automation cycle time;

• Nucleic acid recovery;

• Repeat-test rate;

• Lot qualification;

• Freight and customs;

• Quality-control testing.

Establish a second source

A second supplier is advisable when silica magnetic beads are critical to commercial production.

Particles from different manufacturers are rarely identical, so the alternative source must be validated through:

• Buffer optimization;

• Extraction recovery;

• Purity testing;

• Downstream amplification;

• Stability;

• Automation;

• Pilot manufacturing.

EU IVDR and EUDAMED Considerations

Regulation (EU) 2017/746 governs in-vitro diagnostic medical devices placed on the European Union market.

A standalone silica magnetic bead sold as a general laboratory or manufacturing raw material is not automatically regulated in the same way as a finished IVD extraction kit.

The regulatory status depends on:

• Intended purpose;

• Labeling;

• Product claims;

• Packaging;

• Whether it is sold as a general raw material;

• Whether it is supplied as an IVD reagent or component;

• Whether it forms part of a finished diagnostic device.

Critical raw material control

Even when the bead supplier is not the legal manufacturer of the finished IVD, the finished-device manufacturer should determine whether bead variability could affect:

• Analytical sensitivity;

• Nucleic acid recovery;

• Limit of detection;

• Precision;

• Inhibition;

• Sample failure rate;

• Shelf life;

• Clinical performance.

If the bead is a critical raw material, appropriate incoming specifications, supplier qualification and change control are needed.

EUDAMED in 2026

As of May 28, 2026, four EUDAMED modules became mandatory:

• Actor registration;

• UDI/device registration;

• Notified bodies and certificates;

• Market surveillance.

These obligations apply according to the roles and products defined under the medical device and IVD regulations. Raw bead suppliers should not automatically claim that their materials are IVDR-compliant finished devices.

Finished IVD manufacturers remain responsible for determining the correct regulatory status and documenting how raw materials are controlled.

Supplier change notification

Commercial supply agreements should address changes involving:

• Magnetic core material;

• Silica precursor;

• Particle diameter;

• Surface chemistry;

• Surfactant;

• Preservative;

• Manufacturing site;

• Production scale;

• Test method;

• Packaging;

• Storage conditions.

A change that remains within the supplier’s broad specification may still affect the finished extraction assay.

Lot traceability

The finished-device manufacturer should be able to connect each reagent lot with:

• Bead supplier;

• Product code;

• Supplier lot number;

• Certificate of analysis;

• Incoming inspection result;

• Extraction reagent batch;

• Finished IVD lot.

Recommended Silica Magnetic Bead Qualification Process

Step 1: Define the extraction requirements

Document:

• Target nucleic acid;

• Sample type;

• Input volume;

• Required yield;

• Required purity;

• Elution volume;

• Automation platform;

• Throughput;

• Downstream assay.

Step 2: Select three to five suppliers

Include:

• An established international supplier;

• A European regional supplier;

• A customizable raw bead manufacturer;

• A possible second-source candidate.

Step 3: Request comparable samples

Request enough material for:

• Buffer screening;

• Extraction optimization;

• Automation testing;

• Analytical validation;

• Stability testing;

• Pilot production;

• Retention samples.

Step 4: Characterize the particles

Testing may include:

• Mean particle diameter;

• Size distribution;

• Solids concentration;

• Sedimentation;

• Redispersion;

• Magnetic response;

• Suspension pH;

• Visual appearance;

• Binding capacity;

• Bead carryover.

Step 5: Optimize binding chemistry

Evaluate:

• Chaotropic salt type;

• Salt concentration;

• Binding pH;

• Alcohol type;

• Alcohol concentration;

• Bead volume;

• Mixing time;

• Mixing speed;

• Sample-to-bead ratio.

Step 6: Optimize washing and elution

Evaluate:

• Wash-buffer composition;

• Number of washes;

• Drying time;

• Residual alcohol;

• Elution buffer;

• Elution temperature;

• Elution volume;

• Elution mixing.

Step 7: Test realistic samples

Do not qualify a particle using only purified DNA.

Use representative matrices such as:

• Whole blood;

• Plasma;

• Serum;

• Swabs;

• Tissue;

• Saliva;

• Stool;

• Microbial cultures;

• Environmental samples.

Step 8: Evaluate downstream performance

Measure:

• DNA/RNA yield;

• Purity;

• PCR or RT-qPCR cycle values;

• Inhibition;

• Precision;

• Recovery;

• Fragment integrity;

• Bead carryover.

Step 9: Test multiple lots

Compare several independent production lots for:

• Extraction yield;

• Purity;

• Magnetic behavior;

• Dispensing;

• Redispersion;

• Downstream amplification.

Step 10: Perform pilot-scale manufacturing

Run the selected bead on the final instrument or production process using commercial-scale reagent volumes.

Step 11: Complete supplier qualification

Review:

• Quality questionnaire;

• Product specification;

• Certificate of analysis;

• Manufacturing controls;

• Change notification;

• Complaint handling;

• Traceability;

• Stability;

• Supply capacity;

• Business continuity.

Questions to Ask Potential Suppliers

Particle specifications

1. Is the surface a true silica or silanol surface?

2. What is the magnetic core material?

3. What is the nominal particle diameter?

4. What is the particle-size distribution?

5. What is the solids concentration?

6. What is the bead concentration per milliliter?

7. What is the magnetic separation time?

8. How is silica coating consistency controlled?

9. What is the suspension medium?

10. Are preservatives or surfactants present?

Extraction performance

11. What is the DNA-binding capacity?

12. What is the RNA-binding capacity?

13. Which fragment-size range is recovered?

14. Is the bead suitable for cfDNA?

15. Is it suitable for HMW DNA?

16. Has it been tested with viral RNA?

17. Which sample matrices have been evaluated?

18. What elution conditions are recommended?

19. Is bead carryover data available?

20. Is downstream PCR inhibition data available?

Automation

21. Which extraction instruments have been tested?

22. Is the bead compatible with magnetic rod systems?

23. How rapidly does it sediment?

24. Does it redisperse completely?

25. Is a prefilled plate format available?

26. Can concentration be customized?

27. Are automation scripts available?

28. Can the beads be supplied under nuclease-controlled conditions?

Quality and commercial supply

29. Is a certificate of analysis supplied for every lot?

30. Which quality system covers manufacturing?

31. What are the release specifications?

32. What is the standard production batch size?

33. What is the minimum commercial order?

34. Can one lot be reserved?

35. What is the production lead time?

36. Is a quality agreement available?

37. Which changes require advance notification?

38. Is EU warehouse stock available?

39. Is bulk packaging available?

40. Are OEM or private-label services available?

Frequently Asked Questions

What are silica magnetic beads?

Silica magnetic beads are magnetic nano- or microparticles with a silica or silanol-rich outer surface.

The surface reversibly binds DNA or RNA under suitable chemical conditions, while the magnetic core allows particles to be collected using an external magnet.

Which companies manufacture silica magnetic beads in Europe?

Important Europe-based manufacturers and suppliers include QIAGEN, Magtivio, Chemicell, EURx and KleverLab.

Cytiva also has a strong European commercial presence, while SANYU, NEB, Promega and Bangs Laboratories serve European customers through international supply channels.

Which manufacturer is best for standalone beads?

Cytiva, Magtivio, Chemicell, SANYU, EURx, NEB, Promega, Bangs Laboratories and KleverLab all provide relevant standalone magnetic particle products.

The exact intended-use restrictions and commercial availability should be confirmed for each catalog number.

Which manufacturer is best for custom silica magnetic beads?

Cytiva, SANYU, Bangs Laboratories, Magtivio and Chemicell are relevant starting points for customized particle or OEM projects.

The final selection depends on particle size, concentration, surface specifications, annual demand and quality requirements.

Can silica magnetic beads extract both DNA and RNA?

Yes.

Silica magnetic beads can bind both DNA and RNA when used with suitable lysis, binding, washing and elution conditions.

One protocol may not recover genomic DNA, viral RNA, small RNA and cfDNA equally well, so application-specific optimization is required.

Are silica magnetic beads suitable for automated extraction?

Yes.

Magnetic beads are widely used in automated nucleic acid extraction because magnetic collection can replace centrifugation and filtration.

Performance depends on sedimentation, magnetic response, redispersion, sample viscosity and instrument design.

What is the difference between silica and carboxyl magnetic beads?

Silica beads commonly bind nucleic acids under chaotropic salt and alcohol conditions.

Carboxylated SPRI beads generally use polyethylene glycol and salt-mediated nucleic acid precipitation or adsorption.

The two bead types should not be substituted without validating the complete chemistry.

Which particle size is best?

There is no universal best size.

Smaller beads may provide more surface area and remain suspended longer. Larger beads may collect faster under a magnetic field.

The optimum size depends on the sample, buffer viscosity, magnet strength, automation platform and required binding capacity.

Do raw silica magnetic beads need CE marking?

A general raw material does not automatically require CE marking as a finished IVD.

The regulatory status depends on its intended purpose, claims, labeling and how it is placed on the European market.

The finished-device manufacturer should determine the status of the exact component under the IVDR.

Does IVDR apply to nucleic acid extraction kits?

An extraction product marketed for a medical diagnostic intended purpose may fall within the IVDR framework, depending on its claims, configuration and role in the diagnostic process.

A research-use product and a finished IVD product may have different regulatory requirements.

Should an IVD manufacturer qualify a second supplier?

Yes, when the magnetic bead is critical to assay performance and supply interruption could stop production.

The second bead should undergo complete extraction, stability, automation and downstream assay qualification.

Final Recommendations

The best silica magnetic bead manufacturer serving Europe depends on whether the buyer needs a standard raw particle, a complete extraction system or a customized OEM solution.

Cytiva is a strong overall option for established silica-coated particles, sensitive DNA extraction and OEM development.

QIAGEN is particularly relevant to validated silica-based workflows, high-molecular-weight DNA and automated sample preparation.

Magtivio offers a strong European portfolio of different MagSi particle sizes for open protocol development and automation.

Chemicell provides specialized SiMAG magnetic silica particles and sample-specific geneMAG extraction technologies.

Ranked fifth, SANYU supplies customizable silica magnetic beads, multiple package volumes and OEM or ODM support. It may be particularly relevant to European kit manufacturers seeking factory-direct supply, custom particle dimensions or an alternative raw material source.

EURx offers standalone GeneMAGNET silica-coated beads for manual and automated purification from a European molecular biology supplier.

New England Biolabs combines silica-coated Monarch beads with documented DNA, RNA, cfDNA and cfRNA workflows.

Promega offers established MagneSil particles for genomic DNA, plasmid and sequencing applications.

Bangs Laboratories provides Magnefy Mach I Silica and custom particle-development capabilities for diagnostic projects.

KleverLab offers ExtraMag particles together with European molecular diagnostic and OEM support.

Before approving a supplier, European buyers should compare candidate beads using the actual:

• Sample matrix;

• Lysis chemistry;

• Binding buffer;

• Wash system;

• Magnet;

• Extraction instrument;

• Elution conditions;

• PCR or sequencing assay;

• Storage conditions;

• Commercial production process.

The final supplier should be selected according to extraction performance, lot consistency, automation behavior, quality documentation, IVDR strategy, commercial scalability, total delivered cost and long-term supply security.