IVD Particles & Beads
Plain Latex Microspheres
Colored Microspheres
Fluorescent Microspheres
Magnetic Particles
Plain Latex Microspheres
Product Positioning & Value Proposition
High-Performance Latex Microspheres
Core Value: Exceptional particle uniformity and a highly controllable, functionalizable surface—an essential building block for developing robust diagnostic assays and reagents.
Technical Description
We specialize in polystyrene microspheres with narrow size distribution (monodisperse) and high-purity or precisely modifiable surface chemistry. Through deep control of polymerization and surface engineering, we ensure excellent batch-to-batch consistency and enable customizable functional group density to support a wide range of process development needs—from physical adsorption to chemical conjugation.
1. Core Physical Properties
Particle Size Range
Range:50 nm – 10 μm (Precisely customizable)
Solid Content
Content:5 – 10% w/v (Adjustable)
Matrix Material
Material:Polystyrene (PS) & other polymers
2. Surface Chemistry & Functionality
Surface Groups
Options:Plain or functionalized options (-COOH, -NH₂, -CH₂Cl, etc.)
Key Performance
Performance:Tunable functional group density—ideal for both physical adsorption and chemical conjugation.
Key Process Note
Note:Chemical conjugation / Physical adsorption
3. Exclusive Properties
Optical Performance
Performance:Suitable for light scattering/turbidimetric detection
Primary Applications
Applications:
Immunoturbidimetry/NephelometryAgglutination AssaysBasic Research
Storage & Stability
Stability:Stable ≥12 months at 2-8°C
Colored Microspheres
Product Positioning & Value Proposition
Colored Microspheres for Labeling
Core Value: High-contrast visual signals for quick, intuitive interpretation—no instrument required.
Technical Description
Using an internal saturating dyeing process, dye molecules are permanently and securely encapsulated within the microsphere matrix to prevent any leakage. We offer a broad color palette spanning the visible spectrum, and each color can be tailored in both surface chemistry and signal intensity. This design enables crisp, high-definition, low-background test lines on platforms such as lateral flow assays.
1. Core Physical Properties
Particle Size Range
Range:100 nm – 500 nm (Optimized for chromatography)
Solid Content
Content:2 – 5% w/v (Adjustable)
Matrix Material
Material:Polystyrene core with embedded dyes
2. Surface Chemistry & Functionality
Surface Groups
Options:Primarily carboxyl (-COOH), others available
Key Performance
Performance:High color fastness with no dye leakage, ensuring consistent color across batches.
Key Process Note
Note:Excellent color fastness, no leakage
3. Exclusive Properties
Optical Performance
Colors:Red, Blue, Green, etc. (available)
Primary Applications
Applications:
Lateral Flow Immunoassay (LFIA)Agglutination Detection
Storage & Stability
Stability:Stable ≥12 months at 2-8°C (protect from light)
Fluorescent Microspheres
Product Positioning & Value Proposition
Fluorescent Microspheres for Labeling
Core Value: A high-intensity, highly stable optical signal for sensitive quantitative detection in advanced instruments.
Technical Description
By molecular design, high-performance fluorophores are stably encapsulated within the microsphere matrix, forming a uniform, reliable, high-intensity signal source.
Emission spectra span 460–750 nm, and fluorescence intensity can be tailored to your needs.
With customizable surface chemistry, this platform provides signal output with sensitivity far beyond that of colorimetric methods, while also resisting interference from ambient light.
Emission spectra span 460–750 nm, and fluorescence intensity can be tailored to your needs.
With customizable surface chemistry, this platform provides signal output with sensitivity far beyond that of colorimetric methods, while also resisting interference from ambient light.
1. Core Physical Properties
Particle Size Range
Range:100 nm – 500 nm (Optimized for detection)
Solid Content
Content:2 – 5% w/v (Adjustable)
Matrix Material
Material:Polystyrene core with internally embedded fluorophores.
2. Surface Chemistry & Functionality
Surface Groups
Options:Primarily carboxylated (-COOH), with other functional groups available upon request.
Key Performance
Performance:High fluorescence intensity and stability, with broad emission across the visible spectrum.
Key Process Note
Note:Stable fluorescent signal
3. Exclusive Properties
Optical Performance
Emission:Specific excitation/emission (Ex/Em) wavelength pairs available (e.g., 520/580 and 650/680 nm).
Primary Applications
Applications:
Quantitative LFIAFlow CytometryBiosensing
Storage & Stability
Stability:Stable ≥12 months at 2-8°C (protect from light)
Magnetic Particles
Product Positioning & Value Proposition
Functional Magnetic Particles
Core Value: Precise magnetic separation and controllable handling to support automated, high-sensitivity workflows.
Technical Description
We engineer superparamagnetic core–shell particles that combine rapid magnetic responsiveness with excellent resuspension and dispersion. Their surfaces are precisely coated and passivated with hydrophilic layers, offering multiple conjugation chemistries while minimizing non-specific binding—laying the foundation for high signal-to-noise, high-sensitivity assays.
1. Core Physical Properties
Particle Size Range
Range:0.1–10 µm (standard: 1–3 µm superparamagnetic particles).
Solid Content
Content:10 – 20 mg/mL (Adjustable)
Matrix Material
Material:Polymer/Silica-coated magnetic core
2. Surface Chemistry & Functionality
Surface Groups
Options:Multiple surface options available (-COOH, Streptavidin, Tosyl, -NH₂, etc.)
Key Performance
Performance:Fast magnetic response, low non-specific binding, and high conjugation capacity.
Key Process Note
Note:Hydrophilic coating, low non-specific adsorption
3. Exclusive Properties
Magnetic Performance & Quality
Performance:Superparamagnetic, rapid magnetic response (typically <2 min)
Primary Applications
Applications:
Chemiluminescence/Fluorescence ImmunoassayNucleic Acid ExtractionCell Sorting
Storage & Stability
Stability:Stable ≥12 months at 2-8°C