Color-dyed microspheres are latex microspheres obtained through staining, where the dyes are embedded inside the microspheres and do not leach into the surrounding water or buffer solution. The surface properties of the microspheres remain unchanged, preserving the characteristics of latex microspheres. To meet the demands of lateral flow immunoassays and address the limitations of colloidal gold, our company has developed a variety of color-dyed microspheres with different colors and sizes for selection.
Product Features:
- Bright and vibrant colors, higher sensitivity compared to colloidal gold.
- Requires less antibody usage, cost-effective.
- Low inter-lot variation, suitable for large-scale production.
- Adjustable functional groups and content to meet various product labeling needs.
Technical Specifications:
- Material: Polystyrene and dyes.
- Particle Sizes: 200nm, 300nm, 400nm.
- Uniformity: CV<5%.
- Surface Functional Groups: Carboxyl (COOH).
- Dispersant: Pure water.
- Additives: Trace amounts of surfactants.
- Storage Conditions: Store at 4-25°C, strictly avoid freezing
| Cat# |
Particle size(nm) |
surface group |
color |
solid |
Packaging sizes(ml) |
| DPR200C |
200 |
COOH |
red |
4.0% |
1,10,100,1000 |
| DPR300C |
300 |
COOH |
red |
4.0% |
1,10,100,1000 |
| DPR400C |
400 |
COOH |
red |
4.0% |
1,10,100,1000 |
| DPBK200C |
200 |
COOH |
Black |
4.0% |
1,10,100,1000 |
| DPBK300C |
300 |
COOH |
Black |
4.0% |
1,10,100,1000 |
Note: Other particle sizes can be customized according to customer requirements
Company Profile:
Overview and Production Capacity of BSK Basic
BSK Basic is a leading NC membrane manufacturer and also solution provider in LFA located in Shenzhen China, has been committing to R&D in NC membrane for lateral flow immunoassay since its establishment in 2015, with 21 full automatic production lines (ISO 9001:2015 certified) and monthly production capacity ≥30,000rolls.
Our products are widely used in life sciences, environmental monitoring, immune diagnostics, food and beverage, pharmaceutical manufacturing and etc.
Innovation and Research Development at BSK Basic
In BSK Basic, We have a R&D team who are mostly graduated from top biological universities in China, committed to continuously optimizing product quality and developing new applications. We do this through an unparalleled commitment to R&D, a culture of constant innovation and a spirit of exploring the unknow, and a focus on transforming complex technology into accurate and easy-to-use rapid test.
BSK Basic's Emphasis on Quality Control
We always regard quality control as one of our core values. Our procurement, production, and sales have strictly complied with ISO 9001 international standards and regulations to ensure that each product can accurately and reliably serve patients. Our SOP covers every detail and step of the entire production process, from raw material procurement, production and manufacturing, quality control, to product packaging and shipping, to ensure that every step of the production process is strictly controlled and supervised. At the same time, we use the cutting edge full-automated equipment and technology in the production process to ensure consistency and stability of our products.
Packaging and Shipping:
Due to the required storage environment for the product, we will package it in aluminum foil bags first, with the outer box using carton packaging. To ensure timely transportation, we will prefer to choose air freight as much as possible.
After Sales Service:
A. BSK Basic warrants that the uncut sheet will be free from defects in materials and workmanship for a period of two (2) years from the date of original purchase ("Warranty Period") when the product remains unopened and sealed, used under specified conditions, and operated by a trained person.
B. This warranty is only applicable to the Original (First) Purchaser (Customer) and is not assignable or transferable to any other user or third party.
C. The warranty shall not be applicable if the customer did not approach BSK Basic (BSK) about the reported defect or problem during the period specified in 'A' above.
Our Advantages:
- Exceptional Product Quality: We pride ourselves on consistently delivering products of the highest quality and stability to our customers.
- Prompt Customer Service: Our team is committed to providing timely and effective customer service, ensuring all of your concerns are addressed promptly.
- Fast Delivery: We stand out for our rapid turnaround times, with delivery guaranteed within 1-7 days.
- High Degree of Automation: Our factory is highly automated, greatly reducing the chance of manual errors and ensuring consistent product quality.
- Proprietary Manufacturing Facilities: We operate our own factories, providing us with full control over our manufacturing processes.
- Dedicated Laboratories: Our in-house laboratories further enhance our ability to maintain high-quality standards and conduct innovative product development.
FAQ:
1,Are you trading company or manufacturer?
We are professional NC membrane, Uncut Sheet and microspheres manufacturer with ISO9001 certificated.
2,What is your MOQ?
MOQ may vary by customer's special requirement; we try our best to meet your business requirement.
3,Can I have a sample for our testing?
Yes, free samples are available by freight collected. And we will return the freight in the first order.
4, I have a drawing, can you produce the same?
In generally we can ,but you need send us the pictures of the product, then we will check it, and reply you within 24 hours.
5,What are you usual terms of payment?
We usually handle payments through Telegraphic Transfer (T/T), Letter of Credit (L/C), and Documents against Payment (D/P). If you need other payment terms, we can have a discussion.
Audited Supplier 
){kind=link}
){kind=link}