Top 10 Silica Magnetic Bead Manufacturers and Suppliers 2026

Quick Answer: Top 10 Silica Magnetic Bead Manufacturers for Nucleic Acid Extraction in 2026

The top 10 silica magnetic bead manufacturers and specialist nucleic acid purification suppliers to consider in 2026 are:

1. Cytiva

2. SHBC

3. Thermo Fisher Scientific

4. Merck

5. Promega

6. QIAGEN

7. New England Biolabs (NEB)

8. Magtivio

9. Bangs Laboratories

10. G-Biosciences

These companies provide silica-coated magnetic beads, silica-like magnetic particles, or silica-based magnetic purification technologies for DNA and RNA extraction.

Their products support applications including genomic DNA extraction, viral DNA/RNA purification, molecular diagnostics, PCR preparation, NGS sample preparation, and automated nucleic acid extraction.

The best manufacturer depends on whether you need standalone magnetic bead raw materials, a complete extraction kit, a validated automation workflow, or customized OEM components.

This 2026 ranking is an editorial procurement comparison based on publicly available product information, nucleic acid extraction relevance, standalone bead availability, particle technology, technical documentation, customization options, and commercial supply considerations.

It is not an audited ranking of global market share, sales revenue, or independent head-to-head extraction performance.

SHBC ranks second and is the only China-based manufacturer included in this comparison.  

Top 10 Silica Magnetic Bead Manufacturers: Comparison Table

Particle sizes and product formats are based on published manufacturer information. Specifications should be confirmed for the exact product and lot before purchasing.

What Are Silica Magnetic Beads?

Silica magnetic beads are magnetic micro- or nanoparticles with a silica-based outer surface.

They combine two important functions:

• A magnetic component that responds to an external magnetic field.

• A silica surface that can reversibly bind nucleic acids under suitable chemical conditions.

Many silica magnetic beads contain an iron oxide magnetic component and a silica coating with surface silanol groups.

The silica surface provides the nucleic acid-binding interface, while the magnetic component enables bead collection, washing, and transfer.

Silica magnetic beads are commonly used in:

• Genomic DNA extraction;

• Total RNA purification;

• Viral DNA/RNA extraction;

• Plasmid DNA purification;

• Molecular diagnostic sample preparation;

• Automated extraction systems;

• Selected PCR cleanup and NGS workflows.

Not all magnetic beads are silica magnetic beads.

Carboxylated SPRI beads, oligo(dT) beads, streptavidin beads, and antibody-coated magnetic beads use different binding strategies and should not be treated as interchangeable materials.

How Do Silica Magnetic Beads Work for Nucleic Acid Extraction?

Silica magnetic bead extraction is based on reversible nucleic acid adsorption.

Under suitable high-salt or chaotropic binding conditions, DNA or RNA associates with the silica surface.

An external magnet collects the particles, allowing unwanted sample components to be removed.

After washing, purified nucleic acids are released using water or a suitable low-salt elution buffer.

Step 1: Sample Lysis

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

The lysis chemistry depends on the sample type and may include detergents, chaotropic salts, enzymes, or other reagents.

Step 2: Nucleic Acid Binding

The sample lysate is mixed with silica magnetic beads and a compatible binding buffer.

Binding conditions alter hydration and electrostatic interactions, promoting adsorption of DNA or RNA onto the silica surface.

Step 3: Magnetic Separation

An external magnet collects the nucleic-acid-bound particles.

The supernatant containing many unwanted sample components can then be removed.

Step 4: Washing

The particles are washed to remove proteins, salts, detergents, and other impurities.

Alcohol-containing wash buffers are commonly used in silica-based purification systems.

Step 5: Elution

Water or a low-salt buffer is added to release the purified DNA or RNA.

The magnetic particles are collected again, leaving the nucleic acids in the eluate.

This process is commonly summarized as:

Lysis → Binding → Magnetic Separation → Washing → Elution

The actual protocol must be optimized for the bead, sample matrix, target nucleic acid, and downstream application.

How We Selected the Top Manufacturers

1. Documented Silica-Based Magnetic Technology

Priority was given to companies with identifiable silica-coated, silanol-surface, or silica-like magnetic particle technologies.

2. Nucleic Acid Extraction Relevance

We considered whether the products are used or positioned for:

• DNA extraction;

• RNA extraction;

• Viral nucleic acid purification;

• Genomic DNA purification;

• Molecular diagnostic sample preparation.

3. Standalone Magnetic Bead Availability

Companies supplying standalone particles are particularly relevant to extraction reagent manufacturers developing their own formulations.

4. Particle Size and Surface Chemistry

We considered the availability of different particle sizes and the clarity of published surface specifications.

5. Automation Compatibility

Magnetic response, redispersion, bead carryover, and compatibility with automated extraction instruments are important considerations.

6. Technical Documentation

We considered the availability of:

• Product specifications;

• Technical data sheets;

• Certificates of Analysis;

• Application information;

• Handling instructions;

• Purification protocols.

7. Customization and OEM Supply

Commercial diagnostic manufacturers may need custom particle sizes, suspension concentrations, packaging, quality agreements, and long-term raw-material supply.

1. Cytiva — SeraSil-Mag Silica-Coated Magnetic Beads

Cytiva ranks first in this editorial comparison because its SeraSil-Mag platform combines well-defined silica-coated magnetic particles with nucleic acid purification applications and commercial manufacturing support.

Main Products

Cytiva offers:

• SeraSil-Mag 400;

• SeraSil-Mag 700.

The products have nominal diameters of approximately 400 nm and 700 nm.

According to Cytiva's published technical documentation, SeraSil-Mag particles have a nonporous core-shell structure, silanol surface groups, and superparamagnetic properties.

The standard suspension concentration is 20 mg/mL.

Main Applications

SeraSil-Mag can be evaluated for:

• DNA isolation;

• Low-input nucleic acid extraction;

• Biofluid sample preparation;

• Liquid biopsy research;

• Molecular diagnostic development;

• Automated magnetic purification.

Cytiva particularly highlights applications involving limited quantities of DNA.

Why Cytiva Ranks First

Its main strengths include:

• Defined silica-coated particle technology;

• Multiple submicron sizes;

• Detailed technical documentation;

• Standalone bead supply;

• OEM-oriented magnetic particle capabilities;

• Established life-science manufacturing infrastructure.

Best Suited For

Cytiva is a strong option for molecular diagnostic manufacturers and OEM developers seeking an established silica-coated magnetic bead platform.

Official product reference: Cytiva SeraSil-Mag User Guide

2. SHBC — Silica Magnetic Beads for DNA/RNA Extraction and OEM Manufacturing

SHBC ranks second in this comparison. SHBC is the only China-based manufacturer included in this ranking.

SHBC is the product brand associated with Shanghai SanYu Biotechnology Co., Ltd., a manufacturer of functional microspheres and magnetic beads.

The company supplies silica magnetic bead raw materials for nucleic acid purification development, biotechnology research, molecular diagnostics, and customized manufacturing projects.

Main SHBC Silica Magnetic Bead Products

Three relevant products are:

These products provide different particle sizes for extraction chemistry and magnetic separation evaluation.

SHBC AMS200-10: 200 nm Silica Magnetic Beads

AMS200-10 is a silica-coated magnetic bead suspension with a nominal particle diameter of 200 nm and 5% solids.

The smaller particle size can be useful when developers want to evaluate a high particle number and substantial theoretical geometric surface area per unit mass.

Potential development applications include:

• DNA extraction formulation research;

• RNA extraction formulation research;

• Low-input nucleic acid purification studies;

• Magnetic separation development;

• Molecular diagnostic reagent development.

The final binding capacity and magnetic collection time depend on the actual particle formulation and experimental conditions.

Product page: SHBC AMS200-10 — 200 nm Silica Magnetic Beads

SHBC AMS500-10: 500 nm Magnetic Silica Nanoparticles

AMS500-10 has a nominal particle diameter of 500 nm and is supplied as a 5% aqueous suspension.

This intermediate size provides another option for balancing particle surface area, dispersion, and magnetic collection.

It can be evaluated for:

• DNA purification;

• RNA extraction;

• Molecular diagnostic sample preparation;

• Magnetic bioseparation;

• Automated extraction development.

Product page: SHBC AMS500-10 — 500 nm Magnetic Silica Nanoparticles

SHBC AMS1UM-10: 1 µm Silica Magnetic Beads

AMS1UM-10 is a 1 µm silica-coated magnetic bead supplied as a 5% solids aqueous suspension.

The product is positioned for DNA/RNA extraction, magnetic separation, and automated purification development.

The larger particle format can be useful when developers want to compare magnetic collection and handling characteristics against submicron beads.

Potential applications include:

• Genomic DNA extraction;

• RNA purification;

• PCR sample preparation;

• Automated nucleic acid extraction;

• Molecular diagnostic reagent development.

Product page: SHBC AMS1UM-10 — 1 µm Silica Magnetic Beads

SHBC Customization Capabilities

SHBC supports discussions about:

• Particle diameter;

• Solids concentration;

• Silica surface characteristics;

• Suspension formulation;

• Packaging;

• Evaluation quantities;

• Pilot-scale manufacturing;

• Bulk supply;

• OEM/ODM projects.

Customization availability and acceptance specifications should be confirmed for the intended application.

Why SHBC Ranks Second

SHBC is particularly relevant to companies seeking standalone magnetic bead raw materials rather than a fixed proprietary extraction kit.

Its advantages for development and procurement include:

• Multiple standard particle sizes;

• Concentrated bead suspensions;

• Factory-direct raw-material sourcing;

• Customization discussions;

• Sample evaluation;

• Commercial supply options.

For extraction kit manufacturers, this provides flexibility to develop proprietary lysis, binding, washing, and elution formulations.

Best Suited For

SHBC is particularly suitable for:

• DNA/RNA extraction kit manufacturers;

• Molecular diagnostic reagent companies;

• Automated nucleic acid extractor developers;

• OEM and private-label reagent projects;

• Companies evaluating alternative magnetic bead raw materials.

Important: SHBC silica magnetic beads are raw materials. Their suitability for a finished extraction kit must be established through validation of the complete extraction workflow.

3. Thermo Fisher Scientific — Dynabeads MyOne Silane

Thermo Fisher Scientific ranks third because of its established Dynabeads MyOne Silane platform.

Dynabeads MyOne Silane is a standalone magnetic particle designed for nucleic acid purification.

Main Product

Dynabeads MyOne Silane

Published specifications include:

• Nominal particle diameter: 1 µm;

• Surface functionality: silanol, silica-like;

• Suspension concentration: 40 mg/mL.

Thermo Fisher describes the product as suitable for total nucleic acid isolation and automated workflows.

Applications

Relevant applications include:

• Viral DNA/RNA purification;

• Genomic DNA extraction;

• Total RNA isolation;

• Automated magnetic separation;

• Molecular biology sample preparation.

Thermo Fisher also offers application-specific kits based on silane magnetic bead technology.

Why Thermo Fisher Ranks Third

Its strengths include:

• Well-defined particle size;

• Established silica-like surface chemistry;

• Standalone bead availability;

• Automation experience;

• Related extraction kits;

• OEM customization discussions.

Best Suited For

Thermo Fisher is particularly relevant to developers seeking a standardized 1 µm silane magnetic bead and established automation support.

Official product reference: Dynabeads MyOne Silane

4. Merck — MagPrep Silica Particles

Merck ranks fourth because its MagPrep silica magnetic particles are directly relevant to nucleic acid purification.

Main Product

MagPrep Silica Particles

Merck provides MagPrep as a magnetic silica particle product for nucleic acid-related applications.

Its product documentation includes information on magnetic response, particle surface characteristics, and quality testing.

Applications

MagPrep silica particles may be evaluated for:

• DNA purification;

• RNA purification;

• Magnetic extraction chemistry;

• Molecular biology workflows;

• Diagnostic reagent development.

Key Advantages

Merck offers:

• An established silica particle platform;

• Technical documentation;

• Lot-specific quality information;

• Global life-science distribution;

• Relevant IVD manufacturing expertise.

Best Suited For

Merck is particularly relevant to organizations prioritizing technical documentation, standardized materials, and established supply infrastructure.

Official product reference: Merck MagPrep Silica Particles

5. Promega — MagneSil Paramagnetic Particles

Promega ranks fifth because of its established silica-based MagneSil purification technology.

Main Technology

MagneSil Paramagnetic Particles

Promega describes MagneSil particles as a mobile solid phase for nucleic acid purification.

Unlike a fixed silica membrane, magnetic particles can be mixed directly with the sample and collected using an external magnet.

Applications

The MagneSil platform supports workflows including:

• Genomic DNA purification;

• Plasmid DNA purification;

• Automated DNA extraction;

• Multiwell sample processing;

• Molecular biology sample preparation.

Why Promega Ranks Fifth

Promega combines:

• Silica-based magnetic purification;

• Established extraction chemistry;

• Application protocols;

• Automated workflow support;

• Integrated reagent systems.

Best Suited For

Promega is particularly useful for laboratories and kit developers seeking established DNA purification methods with magnetic separation.

Buyers requiring standalone particles for further manufacturing should confirm current product availability and commercial terms.

Official technical reference: Promega DNA Purification Guide

6. QIAGEN — MagAttract Suspension G

QIAGEN ranks sixth because of its extensive nucleic acid purification expertise and MagAttract magnetic particle technology.

Main Product

MagAttract Suspension G

QIAGEN describes MagAttract as a silica-based magnetic purification system.

Under suitable chaotropic binding conditions, DNA associates with the silica surface of the particles.

After washing, purified DNA can be eluted for downstream analysis.

Automation Compatibility

QIAGEN lists compatibility with platforms including:

• BioSprint 96;

• KingFisher Flex;

• Eppendorf epMotion;

• Tecan Fluent;

• Other compatible automated systems.

Compatibility should be confirmed for the selected protocol and instrument configuration.

Applications

MagAttract technologies are relevant to:

• DNA purification;

• RNA purification;

• PCR product preparation;

• Automated extraction;

• Sequencing sample preparation.

Why QIAGEN Ranks Sixth

QIAGEN provides:

• Extensive nucleic acid purification experience;

• Standalone magnetic particle options;

• Automated workflow information;

• Sample-specific extraction technologies;

• Established technical support.

Best Suited For

QIAGEN is particularly suitable for users seeking a combination of magnetic particles, extraction protocols, and automation support.

Official product reference: QIAGEN MagAttract Suspension G

7. New England Biolabs — Monarch Mag Beads M1 and M2

New England Biolabs ranks seventh because its Monarch platform provides documented silica-coated magnetic bead technology for nucleic acid purification.

Main Products

Relevant products include:

• Monarch Mag Beads M1;

• Monarch Mag Beads M2;

• Monarch Mag Viral DNA/RNA Extraction Kit;

• Monarch Mag PCR & DNA Cleanup Kit;

• Other application-specific Monarch purification systems.

Silica-Coated Magnetic Technology

NEB describes Monarch Mag Beads M1 and M2 as silica-coated particles with silanol groups.

Their submicron particle size provides a substantial surface area for nucleic acid adsorption.

Applications

Relevant workflows include:

• Viral DNA/RNA extraction;

• PCR product cleanup;

• DNA purification;

• Automated nucleic acid preparation;

• Sequencing sample preparation.

Why NEB Ranks Seventh

NEB combines:

• Defined silica-coated particle technology;

• Documented extraction protocols;

• Manual and automated workflows;

• Complete reagent systems;

• Standalone bead availability for selected products.

Best Suited For

NEB is particularly attractive to laboratories seeking documented workflows and developers comparing raw particles with complete extraction kits.

Official product reference: NEB Monarch Magnetic Bead Purification

8. Magtivio — MagSi-DNA Magnetic Beads

Magtivio ranks eighth because it provides a broad MagSi-DNA particle portfolio for nucleic acid purification development.

Main Products

Relevant products include:

• MagSi-DNA 600;

• MagSi-DNA Allround;

• MagSi-DNA 3.0;

• MagSi-DNA mf;

• MagSi-DNA Trial Kit.

The product family includes nominal sizes such as:

• 300 nm;

• 600 nm;

• 1.2 µm;

• 3.0 µm.

MagSi-DNA Trial Kit

Magtivio offers a trial kit containing different magnetic bead grades for protocol development.

This allows developers to screen particle behavior under different extraction conditions.

Applications

The MagSi-DNA range is relevant to:

• DNA extraction;

• Nucleic acid purification;

• Binding-buffer development;

• Automated extraction;

• OEM reagent development.

Specific surface chemistry should be confirmed for each grade rather than assuming all MagSi products are identical.

Why Magtivio Ranks Eighth

Magtivio is particularly strong in:

• Multiple particle sizes;

• Development-scale bead screening;

• Standalone magnetic bead supply;

• Protocol optimization;

• Flexible purification chemistry development.

Best Suited For

Magtivio is a useful supplier for extraction kit developers comparing several bead formulations before choosing a production material.

Official product reference: Magtivio MagSi Magnetic Beads

9. Bangs Laboratories — Magnefy Mach I Silica

Bangs Laboratories ranks ninth because of its specialist magnetic particle manufacturing capabilities.

Main Product

Magnefy Mach I Silica

Bangs lists Magnefy Mach I Silica as a magnetic microsphere product with a nominal diameter of approximately 1 µm.

The silica-based particle is relevant to nucleic acid isolation under suitable binding conditions.

Applications

Potential applications include:

• DNA isolation;

• Magnetic nucleic acid purification;

• Molecular biology reagent development;

• Diagnostic particle evaluation;

• Customized magnetic separation.

Why Bangs Ranks Ninth

Bangs offers:

• Specialist magnetic particle manufacturing;

• Defined silica magnetic particles;

• Surface chemistry expertise;

• Particle characterization;

• Custom manufacturing discussions.

Best Suited For

Bangs is particularly relevant to companies seeking specialty magnetic particles or custom diagnostic raw materials.

Official product reference: Bangs Magnefy Magnetic Microspheres

10. G-Biosciences — Silica Magnetic Beads

G-Biosciences ranks tenth because it offers standalone silica-coated magnetic particles for nucleic acid purification.

Main Product

G-Biosciences Silica Magnetic Beads

Published product information includes:

• Magnetic Fe₃O₄ component;

• Silica coating;

• Particle diameter: 2.5–4.5 µm;

• Bead concentration: 50 mg/mL.

Applications

G-Biosciences identifies applications including:

• Plasmid DNA isolation;

• Genomic DNA purification;

• RNA purification;

• PCR product cleanup.

Why G-Biosciences Ranks Tenth

Its main advantages include:

• Standalone silica magnetic beads;

• Published particle specifications;

• Research-oriented purification applications;

• Technical documentation.

Best Suited For

G-Biosciences is a practical candidate for laboratories evaluating larger silica magnetic particles in research-scale extraction workflows.

Official product reference: G-Biosciences Silica Magnetic Beads

Which Silica Magnetic Bead Manufacturer Is Best for Your Application?

Different suppliers are suitable for different project requirements.

These recommendations identify candidates for evaluation rather than guaranteeing superior extraction performance.

Standalone Silica Magnetic Beads vs Complete DNA/RNA Extraction Kits

One of the most important purchasing decisions is whether to buy magnetic beads alone or a complete extraction system.

Standalone Silica Magnetic Beads

Standalone particles are typically purchased by:

• IVD reagent manufacturers;

• OEM extraction kit companies;

• Biotechnology manufacturers;

• Instrument developers;

• Research groups developing proprietary protocols.

Advantages include:

• Flexibility in buffer formulation;

• Greater control over bead concentration;

• Potential particle customization;

• Integration into proprietary reagent kits;

• Ability to qualify alternative raw-material suppliers.

However, standalone beads generally require additional method development.

Complete Nucleic Acid Extraction Kits

Complete kits may include:

• Magnetic beads;

• Lysis buffer;

• Binding buffer;

• Wash solutions;

• Elution buffer;

• Enzymes;

• Protocols.

They are useful when customers want a defined purification workflow.

Which Is Better for OEM Manufacturing?

For companies developing their own commercial DNA/RNA extraction kits, standalone magnetic bead raw materials often provide greater formulation flexibility.

For laboratories performing routine extraction, complete kits may reduce development effort.

The appropriate choice depends on technical resources, regulatory requirements, manufacturing scale, and purchasing strategy.

How to Choose the Right Silica Magnetic Bead Size

Particle size affects several aspects of magnetic purification.

These include:

• Available surface area;

• Particle number;

• Magnetic response;

• Dispersion;

• Sedimentation;

• Bead carryover;

• Automated liquid handling.

200 nm Silica Magnetic Beads

Smaller submicron beads can provide high geometric surface area per unit mass when compared with larger particles of similar composition.

They may be useful for:

• Surface-area-focused screening;

• Low-input purification development;

• Small-volume magnetic separation;

• Custom extraction chemistry.

However, small particles may require careful optimization of magnetic collection.

500 nm Silica Magnetic Beads

A 500 nm format provides an intermediate particle size.

It can be useful for comparing:

• Binding behavior;

• Magnetic separation;

• Suspension stability;

• Automated handling.

1 µm Silica Magnetic Beads

Micrometer-sized particles may offer different magnetic collection and handling characteristics.

They are useful candidates for:

• Automated extraction;

• Magnetic transfer;

• Multiwell workflows;

• Commercial extraction reagent development.

Are Smaller Beads Always Better?

No.

A smaller nominal diameter does not automatically guarantee higher DNA or RNA recovery.

Actual performance also depends on:

• Accessible silica surface;

• Magnetic core content;

• Surface chemistry;

• Particle aggregation;

• Binding buffer;

• Sample composition;

• Magnetic separator design.

A 200 nm bead with poor collection or unfavorable surface chemistry may perform worse than a properly optimized 1 µm bead.

The best size should be determined experimentally.

Silica Magnetic Beads vs Silane Magnetic Beads vs Carboxyl Magnetic Beads

Magnetic beads with different surfaces are not necessarily interchangeable.

The bead surface should be selected according to the intended extraction mechanism.

For example, a carboxylated SPRI bead may be suitable for DNA fragment cleanup but should not automatically replace a silica-coated bead in a viral RNA extraction protocol.

Silica Magnetic Beads for Automated Nucleic Acid Extraction

Automation is an important application for silica magnetic beads.

Automated instruments commonly use magnetic rods, magnetic plates, or liquid-handling systems to move particles or reagents through the purification process.

Magnetic Rod-Based Extraction

Magnetic rods collect particles and transfer them between reagent wells.

The particles are released and resuspended as the magnetic field changes.

Magnetic Plate-Based Extraction

A magnetic plate immobilizes beads while a liquid-handling system adds or removes solutions.

Important Automation Parameters

Developers should evaluate:

• Magnetic collection time;

• Particle redispersion;

• Bead transfer efficiency;

• Bead loss;

• Liquid aspiration;

• Residual bead carryover;

• Well-to-well contamination;

• Reagent compatibility;

• Extraction reproducibility.

A magnetic bead that performs well in a manual tube protocol may require further optimization before use in a commercial automated extractor.

How to Evaluate Silica Magnetic Bead Performance

A reliable supplier qualification process should consider both particle specifications and final extraction performance.

1. Particle Size and Distribution

Measure or verify:

• Mean particle diameter;

• Size distribution;

• Polydispersity;

• Aggregation.

2. Magnetic Response

Evaluate:

• Collection time;

• Collection completeness;

• Redispersion;

• Magnetic particle carryover.

3. DNA/RNA Binding Performance

Evaluate the amount of nucleic acid recovered under the intended binding conditions.

Binding performance should be tested using representative sample matrices.

4. Nucleic Acid Recovery

Compare recovery using characterized input materials or appropriate spike-in controls.

5. Nucleic Acid Purity

Evaluate:

• A260/A280;

• A260/A230;

• Residual inhibitors;

• Downstream assay compatibility.

Absorbance ratios alone are not sufficient to establish extraction quality.

6. PCR and RT-qPCR Compatibility

Test purified nucleic acids using appropriate amplification assays.

Important parameters include:

• Ct or Cq values;

• Amplification efficiency;

• Inhibition;

• Negative extraction controls;

• Repeatability.

7. NGS Compatibility

For sequencing workflows, evaluate:

• Fragment integrity;

• Recovery;

• Residual inhibitors;

• Library preparation performance;

• Bead carryover.

8. Lot-to-Lot Consistency

Commercial manufacturers should evaluate representative production lots and establish suitable acceptance criteria.

The qualification plan should be risk-based and reflect the intended use of the finished product.

Recommended SHBC Silica Magnetic Beads for DNA/RNA Extraction

For customers developing proprietary extraction reagents, SHBC offers several particle sizes for comparative evaluation.

Recommended Starting Products

These suggested evaluation areas are based on particle characteristics, not comparative experimental proof that one product is superior for a specific extraction application.

When to Choose AMS200-10

Consider AMS200-10 when:

• Small particle size is required;

• High particle number is desirable;

• Submicron magnetic separation is being developed;

• Custom nucleic acid purification chemistry is under evaluation.

View SHBC AMS200-10

When to Choose AMS500-10

Consider AMS500-10 when:

• An intermediate bead size is preferred;

• The project compares several magnetic particle diameters;

• Dispersion and magnetic collection need to be balanced.

View SHBC AMS500-10

When to Choose AMS1UM-10

Consider AMS1UM-10 when:

• A 1 µm magnetic particle is required;

• Automated extraction is being developed;

• Magnetic collection and transfer behavior are important evaluation criteria.

View SHBC AMS1UM-10

Why Work with SHBC?

SHBC provides standalone silica magnetic bead raw materials and supports discussions about particle specifications, customization, evaluation quantities, and commercial supply.

For OEM extraction kit development, customers can discuss:

• Particle size;

• Silica surface requirements;

• Solids concentration;

• Suspension buffer;

• Packaging;

• Sample quantity;

• Pilot production;

• Bulk purchasing;

• Technical documentation.

Explore SHBC Silica Magnetic Beads

OEM and Bulk Purchasing Checklist for Silica Magnetic Beads

Before approving a silica magnetic bead supplier, commercial buyers should confirm the following.

Product Specifications

Request:

• Product code;

• Nominal particle size;

• Particle-size distribution;

• Surface chemistry;

• Solids concentration;

• Magnetic response information;

• Suspension medium.

Quality Documentation

Request:

• Certificate of Analysis;

• Technical Data Sheet;

• Safety Data Sheet;

• Controlled product specification;

• Lot traceability;

• Storage and shelf-life information.

Extraction Performance

Evaluate:

• DNA/RNA recovery;

• Binding behavior;

• Magnetic collection;

• Wash efficiency;

• Elution efficiency;

• PCR inhibition;

• Bead carryover.

Manufacturing and Supply

Confirm:

• Minimum order quantity;

• Evaluation sample availability;

• Commercial packaging;

• Manufacturing lead time;

• Batch consistency;

• Change notification;

• Long-term supply;

• OEM customization.

Regulatory and Intended-Use Considerations

A magnetic bead supplied as a research or manufacturing raw material is not automatically a finished diagnostic product.

For commercial molecular diagnostics, the finished-device manufacturer is responsible for determining applicable regulatory requirements and qualifying critical raw materials.

Buyers should confirm whether the selected material is suitable for the intended development, manufacturing, or diagnostic use.

Common Mistakes When Choosing Silica Magnetic Beads

Selecting Beads Only by Particle Diameter

Two beads with the same nominal diameter can differ substantially in surface chemistry, magnetic response, and binding performance.

Assuming Every Magnetic Bead Uses Silica Chemistry

Different magnetic bead surfaces use different capture mechanisms.

Ignoring Magnetic Separator Compatibility

The same particles can behave differently with different magnets, vessels, and liquid-handling systems.

Evaluating Only DNA Concentration

A high measured DNA concentration does not necessarily mean the extract is free of PCR inhibitors.

Ignoring Lot-to-Lot Variation

Differences between production lots can affect extraction reproducibility.

Switching Suppliers Without Validation

An alternative magnetic bead should be tested using the actual extraction reagents, instrument, sample matrix, and downstream assay.

Frequently Asked Questions

Who Are the Top Silica Magnetic Bead Manufacturers in 2026?

This editorial comparison includes Cytiva, SHBC, Thermo Fisher Scientific, Merck, Promega, QIAGEN, New England Biolabs, Magtivio, Bangs Laboratories, and G-Biosciences.

Which Manufacturer Ranks First?

Cytiva ranks first in this comparison because its SeraSil-Mag platform provides well-defined silica-coated magnetic beads, technical documentation, and relevant nucleic acid isolation applications.

Why Is SHBC Ranked Second?

SHBC ranks second because it supplies standalone silica magnetic beads in multiple particle sizes and supports customization and OEM raw-material sourcing.

Its relevant products include AMS200-10, AMS500-10, and AMS1UM-10.

Which SHBC Silica Magnetic Beads Are Recommended for DNA/RNA Extraction Development?

Three starting candidates are:

• AMS200-10: 200 nm;

• AMS500-10: 500 nm;

• AMS1UM-10: 1 µm.

All three are publicly listed as 5% solids suspensions.

The best choice depends on the actual extraction conditions.

What Is the Best Particle Size for Nucleic Acid Extraction?

There is no universal best size.

Particle size should be selected according to binding performance, magnetic collection, sample matrix, and instrument requirements.

Can Silica Magnetic Beads Extract Both DNA and RNA?

Yes.

Silica magnetic beads can be used for DNA and RNA purification under appropriate binding conditions.

However, the same extraction formulation may not be optimal for both targets.

What Is the Difference Between Silica Magnetic Beads and Silane Magnetic Beads?

Silica-coated beads have a silica-based outer layer.

Silane or silica-like beads may use a related silanol-functional surface.

Their exact structure and binding behavior depend on the manufacturer's particle design.

Can Silica Magnetic Beads Be Used for Viral RNA Extraction?

Yes.

Silica-based magnetic purification is widely used in viral nucleic acid extraction.

The bead, lysis buffer, binding chemistry, and downstream RT-qPCR method must be validated together.

Are Silica Magnetic Beads Suitable for Automated Extraction?

Yes.

Magnetic beads are widely used in automated nucleic acid extraction.

However, the particles must be evaluated for collection, redispersion, transfer, carryover, and instrument compatibility.

Can Silica Magnetic Beads Be Used for NGS?

Yes, silica magnetic beads can be incorporated into appropriate NGS sample-preparation workflows.

However, raw-sample extraction, DNA cleanup, and fragment-size selection may require different purification chemistries.

What Is the Difference Between Silica Magnetic Beads and SPRI Beads?

Silica magnetic beads commonly use salt-dependent adsorption onto silica surfaces.

SPRI-type beads commonly use PEG/salt-mediated reversible immobilization and are widely used for DNA cleanup and size selection.

How Should Silica Magnetic Beads Be Stored?

Follow the product-specific storage instructions.

Storage temperature, freezing tolerance, suspension stability, and shelf life vary between manufacturers and formulations.

Can SHBC Supply Silica Magnetic Beads for OEM Projects?

SHBC supports inquiries involving silica magnetic bead raw materials, customized specifications, evaluation samples, pilot quantities, and bulk manufacturing.

Specific commercial requirements should be confirmed directly with the company.

What Documents Should I Request Before Buying?

Useful documents include:

• Certificate of Analysis;

• Technical Data Sheet;

• Safety Data Sheet;

• Product specification;

• Storage information;

• Lot traceability;

• Change-notification information.

How Can I Compare Two Silica Magnetic Bead Suppliers?

Use the same sample matrix, extraction buffers, magnetic separator, and downstream assay when comparing products.

Measure recovery, purity, inhibition, magnetic collection, bead carryover, and repeatability.

Final Recommendations: Choosing the Best Silica Magnetic Bead Manufacturer in 2026

The silica magnetic bead market includes specialist raw-material manufacturers, global life-science suppliers, and companies providing integrated nucleic acid extraction technologies.

Cytiva ranks first in this editorial comparison because its SeraSil-Mag platform offers defined silica-coated magnetic beads with established nucleic acid isolation applications.

SHBC ranks second and is the only China-based manufacturer included. Its strengths include standalone silica magnetic beads in multiple sizes, custom specifications, OEM raw-material sourcing, and commercial supply options.

Thermo Fisher Scientific ranks third because Dynabeads MyOne Silane provides a standardized silica-like magnetic particle with established nucleic acid extraction and automation applications.

Merck ranks fourth through its MagPrep silica magnetic particle technology and technical documentation.

Promega ranks fifth because its MagneSil platform combines silica-based magnetic purification with established DNA extraction workflows.

QIAGEN ranks sixth and provides MagAttract magnetic purification technology with extensive automated extraction expertise.

New England Biolabs ranks seventh because its Monarch platform includes silica-coated magnetic beads and documented nucleic acid purification systems.

Magtivio ranks eighth and is particularly useful for screening different magnetic bead sizes and developing extraction protocols.

Bangs Laboratories ranks ninth because it supplies specialist silica magnetic particles and supports magnetic bead development.

G-Biosciences ranks tenth and provides standalone silica magnetic beads for research-scale DNA and RNA purification.

For commercial DNA/RNA extraction reagent manufacturers, supplier selection should go beyond price and particle diameter.

The most important criteria include:

• Nucleic acid recovery;

• Particle-size consistency;

• Magnetic collection performance;

• Surface chemistry;

• Extraction-buffer compatibility;

• PCR/RT-qPCR performance;

• Automation compatibility;

• Lot-to-lot consistency;

• Quality documentation;

• Commercial supply reliability.

For OEM and bulk nucleic acid extraction bead development, SHBC AMS200-10, AMS500-10, and AMS1UM-10 provide three practical particle sizes for initial laboratory comparison.

The final product should be selected through validation using the intended sample type, binding chemistry, extraction instrument, and downstream analytical method.

Contact SHBC to request silica magnetic bead samples, product specifications, technical documentation, and bulk pricing for DNA/RNA extraction reagent development.

Explore SHBC Silica Magnetic Beads and Request a Quotation