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Colloidal gold lateral flow test strips are a rapid detection platform based on colloidal gold immunochromatography technology. Its working principle is to use colloidal gold particles as visual markers to form a visible detection line on the test strip through the specific binding between antigen and antibody, thereby achieving rapid identification of the target antigen or antibody. Creative Diagnostics has accumulated profound technical experience in this field and can provide customers with customized colloidal gold lateral flow test strip development solutions. We are committed to developing highly sensitive and accurate detection products, and our service scope covers basic scientific research, clinical applications and industrial production, fully meeting the detection needs at different stages.
Colloidal gold lateral flow test strips are easy to operate and have a fast detection speed (generally results are available within a few minutes). No professional equipment is required, and they are suitable for rapid screening on site or at the grassroots level. It has high sensitivity and specificity and low cost, making it the preferred technology for many rapid diagnostic reagents, such as COVID-19 antigen detection, pregnancy test, etc. With technological advances, the application scope of colloidal gold lateral flow test strips has been continuously expanded, becoming one of the fast and convenient detection methods.
Anton Paar
Claremont Biosolutions
Microwave Reactor
As a trusted developer and supplier of colloidal gold lateral flow test strips, Creative Diagnostics leverages decades of experience to offer tailored solutions for rapid diagnostic applications. With comprehensive technical capabilities spanning colloidal gold nanoparticle synthesis, antibody and antigen conjugation, membrane optimization, and innovative reagent formulation, we support the entire development pipeline. Our expertise ensures reliable and high-performance lateral flow assays for a wide range of targets. We provide:
To meet the needs of researchers in rapid diagnostic testing, Creative Diagnostics offers customized and professional Colloidal Gold Lateral Flow Test Strips Development services. Utilizing advanced technologies and innovative design processes, we ensure that the test strips we develop are highly reliable, sensitive, and efficient. Our services include:
Provide antibody or antigen screening services with strong specificity and high affinity, and perform adaptation optimization to ensure stable and reliable test results of test strips.
Use optimized coupling technology to efficiently bind antibodies or antigens to colloidal gold nanoparticles to ensure signal strength and labeling stability.
Customize the structural combination of sample pads, binding pads, membrane materials and absorption pads to regulate liquid flow rate and detection sensitivity to achieve optimal detection performance.
Includes reaction condition optimization (such as pH, buffer, blocking solution, etc.) and concentration adjustment of detection lines and control lines to ensure clear results and good repeatability.
Perform multiple detection performance evaluations such as sensitivity, specificity, stability, and batch consistency to ensure that product quality meets IVD standards.
Provide a full-process service from R&D to pilot and then to commercial-scale production to meet customers' product needs at different stages.
Clarify the detection target, sample type and project feasibility.
Prepare and label antibodies, and efficiently bind to colloidal gold.
Design and assemble the functional areas of the test strip.
Optimize the detection conditions and verify the sensitivity and specificity.
Scale up production and provide technical support and delivery.
Creative Diagnostics tested the generated Colloidal Gold Lateral Flow Test Strips response time curve, showing the trend of signal intensity over time during the test process. The results showed that a clear signal appeared around 3 minutes, and the signal reached a stable peak at 5 minutes. This reflects the rapid response performance and detection efficiency of the synthetic test strips.
Colloidal gold lateral flow test strips are rapid diagnostic devices that utilize colloidal gold-labeled antibodies to detect the presence of specific analytes in a sample, producing visible colored lines as a result of antigen-antibody reactions.
These test strips are widely used in:
A standard test strip consists of:
Sensitivity and specificity are optimized through:
Yes. Services often include:
Pilot batch production for preliminary evaluation
Scale-up manufacturing with quality control and regulatory compliance
To use our colloidal gold lateral flow test strips development services, please contact Creative Diagnostics, your expert immunology service provider. From research-scale colloidal gold lateral flow test strips development to industrial scale-up, our team is ready to support your R&D innovation.
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