Colloidal gold is negatively charged in a weak alkaline environment and can form a firm bond with the positively charged groups of protein molecules. Since this bond is electrostatic, it does not affect the biological properties of the protein. In addition to binding to proteins, colloidal gold can also bind to many other biological macromolecules, such as SPA, PHA, ConA and so on. According to some physical properties of colloidal gold, such as high electron density, particle size, shape and color response, coupled with the immune and biological properties of the conjugate, colloidal gold is widely used in immunology, histology, pathology and cells Biology and other fields. Colloidal gold labeling is essentially a coating process in which polymers such as proteins are adsorbed onto the surface of colloidal gold particles. The adsorption mechanism may be the negative charge on the surface of the colloidal gold particles, which forms a firm bond with the positively charged groups of the protein due to electrostatic adsorption. The reduction method can be used to conveniently prepare colloidal gold particles of various sizes, that is, different colors, from chloroauric acid. This spherical particle has a strong adsorption function for protein, and can bind non-covalently with Staphylococcus A protein, immunoglobulin, toxin, glycoprotein, enzyme, antibiotic, hormone, bovine serum albumin polypeptide conjugate, etc. Therefore, it becomes a very useful tool in basic research and clinical trials. Immunogold labelling technique (Immunogold labelling technique) mainly takes advantage of the high electron density of gold particles. At the junction of gold-labeled protein, dark brown particles can be seen under the microscope. When these labels aggregate in large amounts at the corresponding ligands, Red or pink spots are visible to the naked eye, so it is used in qualitative or semi-quantitative rapid immunoassay methods. This reaction can also be amplified by the deposition of silver particles, which is called immunogold-silver staining.
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Medical device gold blood type fatty acid binding protein H-FABP rapid test kit
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Meorient Import & Export Co.LTD
China - Hangzhou
Trading Company
Trade Capacity
Export Percentage
Nearest Port
Hangzhou,Shanghai
Accepted Delivery Terms
Employees
5-10人
Accepted Payment Currency
USD,CNY
Average Lead Time
45 Day(s)
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Product Specifications
--Product Description
Product Name | H-FABP test device |
Material | PP |
Certificate | ISO13485,CE |
Package | 20pcs per bag |
Product performance description
The colloidal gold method is composed of chloroauric acid (HAuCl4) under the action of reducing agents such as white phosphorus,ascorbic acid, sodium citrate, tannic acid, etc., which can be polymerized into a certain size of gold particles, and become a stable colloidal state due to static electricity. , Forming a negatively charged hydrophobic glue solution, which becomes a stable colloidal state due to static electricity, so it is called colloidal gold. Colloidal gold is also an ideal immunological marker in immunoelectron microscopy technology
The basic principle of immune colloidal gold technology:
1: Do you support OEM/ODM?
A: YES, we can prototype and customize the ideal product according to your specific application.
2:Do you have GMP Lab?
A: YES, we have our GMP Lab built in 2005.
3: Do you have any certificates?
A: YES, we have all the certificates required for export and local import custom clearance.
4: How long have you been in manufacturing medical consumables?
A: Established on 2001, our factory offer production, sales,delivery one-stop service.
5: Where is your main market located?
A: 80% in European Countries, 10% in American Countries, and 10% in Middle East.
6: What's your lead time?
A: For mass production, we deliver by batches and first batch can be delivered within 3 days.
7: Do you have any certificates?
A: YES, we have the certificates （ISO13485,CE,FSC） required for export and local import custom clearance.
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