200nm Special Standard Microspheres for Photonic Crystals COOH SCP200NM-10 5%

200nm Carboxyl-Modified Microspheres for Photonic Crystals

SHBC SCP200NM-10 Special Standard Microspheres are 200 nm particles with surface carboxyl groups and a solid content of 5%.

The controlled particle size supports colloidal self-assembly and photonic crystal research. Surface carboxyl groups provide reactive sites for antibody, protein, peptide and biomolecule immobilization.

SCP200NM-10 is suitable for photonic crystal materials, optical sensing, biosensor development, immunoassay research and bulk reagent production.

Product Specifications

Particle matrix, particle size distribution, dispersion medium, refractive index and surface carboxyl content should be confirmed in the batch-specific specification.

Key Features and Advantages

Controlled 200nm Particle Size

The 200 nm particle size is suitable for nanoscale colloidal assembly, photonic crystal films and particle-based immunoassay development.

Carboxyl-Functionalized Surface

Surface carboxyl groups support biomolecule immobilization through EDC or EDC/NHS coupling chemistry.

Optical and Biological Functionality

SCP200NM-10 combines particle-size-controlled optical material performance with a reactive surface for antibody and protein conjugation.

Convenient 5% Solid Content

The 5% suspension supports dilution, coating-process optimization, coupling development and pilot-scale formulation.

Stable Batch Supply

SHBC supports laboratory evaluation, customized specifications, pilot production and long-term bulk supply.

Dual Optical and Biofunctional Performance

SCP200NM-10 is designed for projects requiring both ordered particle structures and surface biomolecule modification.

The microspheres can serve as:

• Building blocks for colloidal photonic crystals

• Templates for ordered nanostructures

• Carriers for antibodies and proteins

• Components in optical biosensors

• Functional particles for photonic immunoassays

• Raw materials for diagnostic reagent research

The carboxyl surface also affects particle charge and interparticle interactions. Self-assembly conditions should therefore be optimized according to pH, ionic strength, surfactant level and substrate properties.

Photonic Crystal Applications

SCP200NM-10 can be evaluated for:

• Two-dimensional photonic crystal arrays

• Three-dimensional colloidal crystals

• Opal-like photonic structures

• Structural color films

• Optical reflection research

• Photonic bandgap studies

• Refractive index sensors

• Optical biosensors

• Photonic crystal coatings

• Inverse opal templates

• Colloidal self-assembly

• Nanostructured surfaces

• Light-scattering research

• Microfluidic optical detection

Particle size uniformity, surface charge and assembly conditions are important for producing ordered colloidal crystal structures.

Immunoassay and Biosensor Applications

The carboxyl-modified surface allows SCP200NM-10 to be evaluated for:

• Antibody immobilization

• Antigen coating

• Protein conjugation

• Photonic crystal immunoassays

• Optical biosensor development

• Particle-capture assays

• Fluorescent immunoassay research

• Multiplex detection

• Biomolecular recognition surfaces

• Diagnostic reagent development

• Microarray and microfluidic assays

• Affinity capture research

Research has demonstrated the use of 200 nm carboxylated particles in nanoparticle-assembled photonic crystal immunoassay platforms. Final performance depends on the complete assay design and detection system.

Carboxyl Surface for Biomolecule Coupling

Surface carboxyl groups can be activated for covalent attachment of amino-containing biomolecules.

Suitable targets may include:

• Antibodies

• Antigens

• Recombinant proteins

• Peptides

• Enzymes

• Amino-modified oligonucleotides

• Affinity ligands

• Other amine-containing molecules

EDC, commonly combined with NHS or Sulfo-NHS, can activate surface carboxyl groups before reaction with primary amino groups.

Important coupling parameters include:

• Activation buffer

• Reaction pH

• EDC/NHS concentration

• Biomolecule loading

• Reaction time

• Blocking reagent

• Washing conditions

• Storage buffer

Small-scale optimization is recommended before pilot or bulk production.

Why Choose 200nm Carboxyl Microspheres?

The 200 nm size provides a useful balance between nanoscale self-assembly, available surface area and biomolecule-loading potential.

Key benefits include:

• Suitable size for colloidal photonic structures

• High surface area for biomolecule attachment

• Reactive carboxyl surface chemistry

• Compatibility with optical sensing research

• Suitable for particle-based immunoassays

• Flexible concentration adjustment

• Support for research-to-production scale-up

• Custom surface and packaging options

Photonic Crystal Self-Assembly Guidance

SCP200NM-10 may be evaluated using:

• Vertical deposition

• Drop casting

• Spin coating

• Horizontal deposition

• Evaporation-induced self-assembly

• Air–water interface assembly

• Template-assisted assembly

Important processing factors include:

• Microsphere concentration

• Particle size distribution

• Surface charge

• Dispersion stability

• Substrate cleanliness

• Substrate surface energy

• Temperature

• Humidity

• Evaporation rate

• Surfactant concentration

• Salt concentration

• Film thickness

Carboxyl content can influence hydrogen bonding, water retention and film formation. The preferred surface group density should be matched to the intended optical structure and coupling process.

Recommended Handling

• Mix gently before sampling.

• Fully redisperse particles after standing.

• Avoid dust and particulate contamination.

• Use clean laboratory containers and substrates.

• Avoid allowing the stock suspension to dry.

• Do not freeze unless permitted by the product specification.

• Optimize pH and ionic strength before self-assembly.

• Avoid amine-containing buffers during EDC/NHS activation.

• Control temperature and humidity during film preparation.

• Confirm substrate and buffer compatibility before scale-up.

Quality Control and Batch Consistency

Batch documentation may include:

• Certificate of Analysis

• Safety Data Sheet

• Product specification

• Particle size information

• Solid-content information

• Surface group information

• Batch identification

• Storage and handling guidance

For photonic crystal applications, customers should confirm the available particle size distribution, morphology and optical-property data before ordering.

Customization and Bulk Production

Shanghai SanYu Biotechnology Co., Ltd. provides customized microsphere development for optical material companies, biotechnology companies, diagnostic reagent manufacturers and research institutions.

Customization options may include:

• Different particle sizes

• Different solid contents

• Carboxyl group density adjustment

• Narrow particle size distribution

• Custom dispersion media

• Fluorescent modification

• Antibody or protein conjugation

• Custom packaging

• Pilot-scale manufacturing

• Bulk production

• OEM and ODM services

Customization feasibility depends on the required particle size, surface chemistry, concentration, optical application and order volume.

Why Choose SHBC?

• Specialized microsphere manufacturer

• Controlled 200 nm particle specification

• Reactive carboxyl-modified surface

• Convenient 5% solid content

• Suitable for photonic crystal research

• Supports antibody and protein coupling

• Optical and biofunctional application potential

• Samples and pilot orders available

• Stable batch production

• Customized surface chemistry

• Bulk manufacturing capability

• OEM and ODM support

Frequently Asked Questions

What is SCP200NM-10?

SCP200NM-10 is a 200 nm carboxyl-modified special standard microsphere suspension with 5% solids, developed by SHBC for photonic crystal and immunoassay research.

What is the function of the carboxyl surface?

The carboxyl groups provide reactive sites for covalent coupling with antibodies, proteins, peptides and other amino-containing biomolecules.

Can SCP200NM-10 form photonic crystal structures?

The microspheres can be evaluated for colloidal self-assembly and photonic crystal film preparation. Final structure quality depends on particle distribution, surface charge and processing conditions.

Can the product be used for immunoassays?

Yes. It can be evaluated for antibody coupling, optical biosensors, particle-capture assays and photonic crystal immunoassay research.

Which coupling chemistry can be used?

EDC/NHS or EDC/Sulfo-NHS chemistry can be evaluated for coupling amino-containing biomolecules to the carboxyl surface.

Does carboxyl modification affect self-assembly?

Yes. Surface carboxyl groups influence particle charge, hydrophilicity and interparticle interactions. Assembly conditions should be optimized accordingly.

Can SHBC customize the carboxyl content?

Custom particle size, carboxyl density, solid content, dispersion medium and packaging can be discussed.

Are bulk quantities available?

Yes. SHBC supports samples, pilot orders and bulk production.

Is SCP200NM-10 a finished diagnostic reagent?

No. It is a raw material for research and reagent development. Customers must complete application-specific validation.

Request Samples and Bulk Pricing

Contact SHBC for SCP200NM-10 samples, technical specifications, customized surfaces and bulk quotations.

Please provide:

• Required quantity

• Target optical or immunoassay application

• Required particle size tolerance

• Preferred carboxyl group density

• Dispersion medium requirements

• Packaging requirements

• Expected annual demand

Product: 200nm Carboxyl-Modified Special Standard Microspheres for Photonic Crystals
Catalog Number: SCP200NM-10
Particle Size: 200 nm
Solid Content: 5%
Surface Group: Carboxyl, –COOH
Brand: SHBC
Manufacturer: Shanghai SanYu Biotechnology Co., Ltd.
Applications: Photonic Crystals, Biosensors and Immunoassay Research
Intended Use: Research and Reagent Development Use