
Quick Answer: Leading IVD Magnetic Bead Suppliers Serving Thailand
Companies developing diagnostic reagents in Thailand can source IVD magnetic beads from international raw-material manufacturers, specialist particle companies and integrated molecular-diagnostic suppliers.
Ten established companies worth evaluating in 2026 are:
Thermo Fisher Scientific
SANYU GROUP
Merck Estapor
Cytiva
JSR Life Sciences
Bangs Laboratories
Revvity
micromod Partikeltechnologie
Magtivio
QIAGEN
These companies do not all follow the same supply model. Some manufacture functional magnetic particles for use as IVD raw materials, while others provide magnetic beads as part of extraction kits, automated instruments or complete sample-preparation workflows.
The most suitable supplier therefore depends on the intended assay, required surface chemistry, particle size, magnetic response, documentation, customization needs and commercial supply requirements.
This article is an editorial sourcing guide rather than an audited market-share ranking. “Serving Thailand” means that products may be supplied to Thai customers directly or through international, regional or local distribution channels. Buyers should confirm current availability, lead time, importer requirements and product status directly with each supplier.

What Are IVD Magnetic Beads?
IVD magnetic beads are functional particles that can capture, immobilize or separate biological targets under an external magnetic field.
A typical magnetic bead includes:
A magnetic core or magnetic material;
A polymer, silica or composite particle structure;
A functional surface;
An optional biological ligand;
A suspension or storage buffer.
The magnetic component enables rapid separation without repeated centrifugation or filtration. The surface chemistry determines which antibodies, proteins, nucleic acids, cells or other targets the bead can bind.
Common applications include:
Chemiluminescent immunoassays;
Enzyme immunoassays;
Antibody and antigen immobilization;
DNA and RNA extraction;
NGS cleanup and size selection;
Protein purification;
Cell capture and enrichment;
Pathogen testing;
Automated sample preparation.

Choose the Magnetic Bead by Binding Principle
The supplier name alone does not determine assay performance. The first step is to select a surface chemistry that matches the target molecule and workflow.
Magnetic bead type | Binding principle | Typical application |
|---|---|---|
Carboxyl magnetic beads | EDC/NHS-mediated covalent coupling | Antibody, antigen, protein and oligonucleotide immobilization |
NHS-activated magnetic beads | Direct reaction with primary amines | Rapid antibody and protein coupling |
Streptavidin magnetic beads | High-affinity streptavidin–biotin interaction | Capture of biotinylated antibodies, proteins and nucleic acids |
Silica magnetic beads | Nucleic acid adsorption under suitable buffer conditions | DNA and RNA extraction |
Tosyl magnetic beads | Activated-surface covalent coupling | Immunoassay reagent preparation |
Epoxy magnetic beads | Reaction with amino, thiol or hydroxyl groups | Protein and enzyme immobilization |
Amino magnetic beads | Crosslinker-assisted conjugation | Surface modification and biomolecule coupling |
Protein A/G magnetic beads | Affinity binding to immunoglobulins | Antibody purification and immunoprecipitation |
Nickel magnetic beads | Metal-affinity binding | His-tagged protein purification |
Particle size, size distribution, surface-group density, magnetic content, sedimentation and redispersibility must then be evaluated in the actual assay system.
Comparison of 10 IVD Magnetic Bead Suppliers Serving Thailand
Company | Main platform or product type | Main strength | Suitable starting point |
|---|---|---|---|
Thermo Fisher Scientific | Dynabeads | Broad functional surfaces and established workflows | Immunoassays, cell separation and molecular biology |
SANYU GROUP | Functional magnetic beads | Customization and factory-direct raw-bead supply | CLIA, nucleic acid extraction and OEM projects |
Merck Estapor | Magnetic polymer microspheres | Multiple particle and surface options | IVD raw materials and immunoassay development |
Cytiva | Sera-Mag and SpeedBeads | Functional particles and automation compatibility | Immunodiagnostics, affinity capture and NGS workflows |
JSR Life Sciences | Magnosphere particles | Controlled particle and surface characteristics | High-sensitivity diagnostic assays |
Bangs Laboratories | Magnetic microsphere platforms | Custom particle engineering | Diagnostic reagent and custom-development projects |
Revvity | M-PVA beads and chemagic systems | Integrated extraction chemistry and automation | Molecular diagnostics and high-throughput extraction |
micromod Partikeltechnologie | Magnetic nano- and microparticles | Specialized and customized particle development | Custom IVD and bioseparation applications |
Magtivio | MagSi products | Silica and functional magnetic particles | Extraction, purification and OEM workflows |
QIAGEN | MagAttract workflows | Established extraction kits and instruments | Nucleic acid purification and sample preparation |
1. Thermo Fisher Scientific
Thermo Fisher Scientific offers the Dynabeads product family for molecular biology, immunoassays, protein purification and cell separation.
The portfolio includes several chemical and biological surfaces, allowing developers to select beads according to their coupling or affinity mechanism. Dynabeads are widely used in established laboratory and automated workflows.
Thermo Fisher may be suitable for companies that prioritize a globally recognized platform, extensive application documentation and compatibility with established protocols.
Buyers should confirm whether the selected product is supplied for research, further manufacturing or commercial diagnostic development, as well as the available bulk package sizes and change-notification arrangements.
2. SANYU GROUP
SANYU GROUP supplies functional magnetic beads and microspheres for IVD, molecular diagnostics, biomolecule immobilization, purification and bioseparation.
Available magnetic bead technologies include:
Carboxyl magnetic beads;
Silica magnetic beads;
Streptavidin magnetic beads;
NHS-activated magnetic beads;
Amino magnetic beads;
Epoxy magnetic beads;
Tosyl magnetic beads;
Nickel magnetic beads;
Cell-sorting magnetic beads.
For Thai diagnostic developers, an important advantage is the ability to discuss raw-bead requirements directly with the manufacturer. Projects may begin with a standard product and then evaluate relevant adjustments to particle size, surface chemistry, solids concentration, suspension buffer, package size or biological coating.
SANYU is particularly relevant to companies developing CLIA reagents, antibody-coated particles, nucleic acid extraction products or customized OEM magnetic bead systems.
Before scale-up, customers should test representative samples in the intended antibody, sample matrix, buffer system, magnetic separator and analyzer.
3. Merck Estapor
The Estapor portfolio includes polymer microspheres and magnetic particles developed for diagnostic and bioseparation applications.
Different products may vary in particle diameter, magnetic material content, polymer structure, surface functionality and biological coating. This gives assay developers several starting points for immunoassay and separation projects.
Merck Estapor may be appropriate for manufacturers seeking an established microsphere supplier with multiple particle configurations. Buyers should compare magnetic response, coupling chemistry, functional-group density, sedimentation and commercial package availability.
4. Cytiva
Cytiva supplies Sera-Mag magnetic particles and Sera-Mag SpeedBeads for immunodiagnostic, affinity-capture and molecular-biology workflows.
Relevant options include carboxylate-modified particles, streptavidin-coated particles and other affinity-functionalized formats. SpeedBeads are intended for applications in which rapid magnetic collection is important.
Cytiva may be a useful starting point for automated immunoassays, biotin-based capture systems, NGS workflows and high-throughput processing.
Developers should compare conventional particles and faster-separating formats under the actual mixing, washing and magnetic collection conditions of the analyzer.
5. JSR Life Sciences
JSR Life Sciences offers Magnosphere magnetic particles for life-science and diagnostic applications.
The platform includes particles with different surface characteristics and functionalization options. Controlled particle properties can be valuable in assays where surface area, reaction kinetics, background signal and magnetic separation must be carefully balanced.
JSR may be suitable for high-sensitivity immunoassay development and other applications requiring controlled particle and surface performance.
Current specifications, customization options, package sizes and supply arrangements for Thailand should be confirmed directly before evaluation.
6. Bangs Laboratories
Bangs Laboratories develops polymer, silica and magnetic microspheres for diagnostic and life-science applications.
Its magnetic particle platforms are frequently considered for antibody immobilization, affinity capture, bioseparation and custom assay development. The company is particularly relevant when a project requires technical discussion beyond a standard catalogue product.
Thai buyers should request product-specific information covering particle dimensions, surface chemistry, magnetic response, binding capacity, documentation and commercial manufacturing capability.
7. Revvity
Revvity provides M-PVA magnetic beads, chemagic nucleic acid purification chemistry and automated extraction platforms.
This makes Revvity different from a supplier focused only on raw magnetic particles. Its strength lies in combining bead chemistry, extraction reagents and automation into a coordinated molecular-diagnostic workflow.
Revvity may be suitable for laboratories and diagnostic manufacturers seeking high-throughput DNA or RNA extraction rather than an independent raw-bead component.
Companies that intend to formulate their own extraction chemistry should confirm whether standalone beads, OEM materials or customized reagent arrangements are available for the intended project.
8. micromod Partikeltechnologie
micromod Partikeltechnologie specializes in functional nano- and microparticles, including magnetic particles with different matrices, sizes and surface chemistries.
Its portfolio is relevant to specialized IVD, biosensor, bioseparation and custom particle-development projects.
The company may be considered when standard catalogue beads do not provide the required particle dimensions, coating, magnetic properties or surface functionality.
Customization projects should begin with clearly defined acceptance criteria, including target size distribution, magnetic behavior, functional-group density, buffer conditions and required annual volume.
9. Magtivio
Magtivio offers MagSi magnetic particles, nucleic acid extraction products and automation-related solutions.
The portfolio includes silica-based and surface-functionalized magnetic particles for purification, extraction and biomolecule immobilization.
Magtivio may be suitable for customers seeking magnetic beads together with workflow-development, OEM or private-label support.
Thai buyers should distinguish between raw particles, prepared reagents, kits and automated solutions when comparing prices and technical specifications.
10. QIAGEN
QIAGEN is widely associated with magnetic nucleic acid purification through its MagAttract products and sample-preparation workflows.
Its principal strength is the integration of magnetic separation chemistry with established protocols, kits and compatible instruments. It is therefore more accurately evaluated as a workflow and platform supplier than solely as a raw magnetic bead manufacturer.
QIAGEN may be appropriate for laboratories and diagnostic operations that prefer a defined extraction system. Companies developing their own proprietary buffers or kits should confirm whether the required standalone materials and commercial rights are available.
How to Select an IVD Magnetic Bead Supplier for Thailand
Match the surface chemistry to the assay
Begin with the intended binding mechanism.
Carboxyl or NHS-activated beads are common starting points for covalent antibody immobilization. Streptavidin beads are suitable when the ligand is biotinylated. Silica or other nucleic-acid-binding surfaces are commonly evaluated for DNA and RNA extraction.
Do not choose a bead only because another assay uses the same product. Differences in antibodies, sample matrices, buffers, analyzers and magnetic hardware can produce different results.
Evaluate the bead in the complete workflow
Testing should cover more than binding capacity.
Important performance characteristics include:
Signal and background;
Sensitivity and precision;
Target recovery;
Magnetic collection time;
Bead loss during washing;
Sedimentation during storage or incubation;
Redispersibility;
Nonspecific adsorption;
Carryover;
Analyzer compatibility.
Whenever possible, compare several candidates using the same experimental conditions.
Review quality and technical documentation
For commercial IVD development, request product-specific documentation such as:
Technical Data Sheet;
Safety Data Sheet;
Lot-specific Certificate of Analysis;
Particle-size test method;
Surface-functionality information;
Solids concentration;
Storage and transportation conditions;
Shelf-life information;
Batch traceability;
Change-notification procedure.
A quality certificate alone does not replace product-specific performance data.
Confirm supply conditions for Thailand
Before selecting a supplier, confirm:
Whether direct shipment to Thailand is available;
Whether a regional or Thai distributor is involved;
Sample and commercial lead times;
Minimum order quantity;
Bulk packaging options;
Shipping-temperature restrictions;
Customs documentation;
Local inventory or safety-stock arrangements;
Technical support response time.
The regulatory treatment of a raw magnetic bead may differ from that of a finished IVD kit. Importers and manufacturers should confirm the applicable requirements for the intended product, claims and method of sale.
Compare total project cost
The lowest price per gram is not always the lowest total cost.
A technically unsuitable bead may increase antibody consumption, assay background, optimization time, validation work and production losses. Total evaluation should include bead performance, coupling yield, analyzer cycle time, lot consistency, freight, documentation and long-term supply continuity.
Recommended Supplier Qualification Process
Step 1: Define the target specification
Document the intended application, particle size, surface chemistry, concentration, buffer, magnetic response and annual demand.
Step 2: Shortlist three to five suppliers
Include different supply models, such as an established multinational platform, a customizable raw-bead manufacturer and a potential second source.
Step 3: Request representative samples
Confirm that samples reflect the intended commercial product and are accompanied by available technical specifications.
Step 4: Test the beads under identical conditions
Use the same target molecule, coupling method, sample matrix, magnetic separator and analytical method.
Step 5: Evaluate multiple production lots
A strong result from one sample is not sufficient for a commercial IVD project. Compare independent lots for critical performance characteristics.
Step 6: Complete commercial qualification
Review price, minimum order, lead time, production capacity, packaging, quality documentation, change control and delivery arrangements for Thailand.
Frequently Asked Questions
Are all these magnetic bead companies located in Thailand?
No. Most are international manufacturers or suppliers whose products may be available to Thai customers through direct export, regional offices or distributors.
The phrase “serving Thailand” should not be interpreted as confirmation of a local factory, warehouse or registered Thai product.
Which magnetic beads are commonly used for CLIA?
Carboxyl, NHS-activated, tosyl and streptavidin magnetic beads are commonly evaluated for chemiluminescent immunoassays.
The final choice depends on the antibody, coupling strategy, analyzer design, required sensitivity and washing conditions.
Which magnetic beads are suitable for DNA and RNA extraction?
Silica magnetic beads and other nucleic-acid-binding magnetic materials are commonly used for DNA and RNA purification.
Performance depends on the sample type, lysis chemistry, chaotropic salt concentration, alcohol content, washing conditions and elution buffer.
Can research-use magnetic beads be used in a commercial IVD product?
Not automatically.
Commercial developers must evaluate manufacturing continuity, product specifications, lot consistency, stability, documentation, change control and the rights associated with further manufacturing.
Is a larger magnetic bead always easier to use?
Larger particles may separate quickly but can also sediment more rapidly. Smaller particles generally provide more surface area but may require longer magnetic collection.
The correct balance must be established in the intended instrument and assay format.
Should an IVD manufacturer qualify a second magnetic bead supplier?
A second source can reduce long-term supply risk, but magnetic beads from different manufacturers are rarely direct replacements.
Changing suppliers may require coupling optimization, assay bridging, stability studies, analyzer verification and regulatory assessment.
What information should be sent when requesting a magnetic bead recommendation?
Provide the application, target molecule, sample type, coupling method, preferred surface chemistry, particle size, process volume, magnetic hardware, annual quantity and any required technical specifications.
Conclusion
There is no single magnetic bead supplier that is best for every IVD project. Thai buyers should select a supplier by comparing surface chemistry, particle properties, assay performance, documentation, customization, delivery conditions and long-term manufacturing support.
Multinational suppliers may be attractive for established branded platforms and integrated workflows. Specialist particle manufacturers may be more suitable when a project requires customized raw beads, alternative sourcing or direct technical communication.
For companies developing proprietary IVD reagents rather than purchasing a closed kit, SANYU GROUP provides a broad magnetic bead product portfolio for immunoassay, molecular diagnostic, purification and bioseparation applications.
Available starting materials include carboxyl magnetic beads for covalent biomolecule immobilization, silica magnetic beads for nucleic acid extraction and streptavidin magnetic beads for biotin-based capture.
Thai customers can contact the SANYU technical team with their application, target molecule, preferred particle size, surface chemistry, process volume and estimated demand to discuss samples, technical documentation, customization and commercial supply.
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Quick Answer: Leading IVD Magnetic Bead Manufacturers Serving ThailandThe leading IVD magnetic bead manufacturers serving Thailand in 2026 include Thermo Fisher Scientific, SANYU, Merck Estapor, Cytiva, JSR Life Sciences, Bangs Laboratories, Revvity, micromod Partikeltechnologie, Magtivio and QIAGEN



