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Lab antigens are crucial components in various research and diagnostic applications, from vaccine development to disease detection. Selecting the correct antigen ensures the accuracy and reliability of your experimental results. This guide will help you navigate the key factors to consider when purchasing these vital biological reagents.
Optimized for Laboratory Use: Citrate solution (antigen retriever) is a commonly used antigen retriever, which can be used for antigen retrieval of paraffin-embedded sections and frozen sections fixed with formaldehyde, paraformaldehyde, or other aldehyde...
Features: It can effectively remove cross-linking between proteins caused by aldehyde fixation reagent, and fully expose the antigenic sites of paraffin-embedded tissue sections, thereby significantly improving immunostaining effectiveness
Application: This product is especially suitable for paraffin sectioning and can also be used for frozen sectioning
Precautions: （1）Soak in antigen retrieval solution (1×). The best heating time needs to be explored according to different samples and target proteins. （2）Please wear a lab coat and disposable gloves when operating
Optimal Storage Conditions: Store at 2 - 30°C. Keep product stored within this temperature range to maintain integrity and stability
Manufactured in an ISO 9001 and 13485 certified facility in the USA
For research use only. Not for human or animal clinical/therapeutic use.
Each production lot is manufactured in our USA laboratory following stringent Good Manufacturing Practices and rigorous quality control tests under certified 14644 clean room conditions
Citrate buffers can be used for RNA isolation, due to its ability to prevent base hydrolysis. The buffer is also used for antigen detection by breaking cross-links between antigens and any substances in its fixation medium. Citrate buffer is a popular...
Manufactured in an ISO 9001 and 13485 certified facility in the USA
For research use only. Not for human or animal clinical/therapeutic use.
Each production lot is manufactured in our USA laboratory following stringent Good Manufacturing Practices and rigorous quality control tests under certified 14644 clean room conditions
Citrate buffers can be used for RNA isolation, due to its ability to prevent base hydrolysis. The buffer is also used for antigen detection by breaking cross-links between antigens and any substances in its fixation medium. Citrate buffer is a popular...
3-in-1 Detection for COVID-19 + Flu A & B – Rapid lateral-flow antigen test designed to qualitatively detect and differentiate SARS-CoV-2, Influenza A, and Influenza B from a single shallow nasal swab
Fast Results in 15 Minutes – Get clear positive or negative results quickly with no repeat testing required
Easy At-Home Self-Test – OTC kit for individuals 14+ to self-test, or for adults to test children ages 2–13 (adult must perform the swab)
Dual Result Windows – Two separate windows display differentiated results for COVID-19 and Flu A/B for straightforward interpretation
Comfortable, Low-Depth Nasal Swab – Uses a simple anterior nasal sample for a less invasive experience while maintaining reliable performance
Fast and Reliable Results: Get accurate results within 10-15 minutes with this convenient at-home H. Pylori test kit, allowing you to monitor your stomach health quickly and efficiently.
User-Friendly Design for Home Use: With clear instructions, this self-test kit is designed for easy and comfortable use at home, making it accessible for everyone.
Great Value with 2 PCS Test Kit: Each kit includes two tests, perfect for multiple uses or sharing with family members, providing extra value for ongoing health checks.
Versatile Applications of the H-Pylori Test：This H-Pylori test kit is suitable for anyone looking to check their stomach health at home, making it perfect for personal health management or use by family members.
Simple Process with Dedicated Support: Easy-to-follow instructions ensure a hassle-free experience, and our responsive support team is ready to assist you with any questions.
COVID TEST KITS: 4 BinaxNOW COVID-19 Rapid Test Kits includes 4 foam-tipped swabs, 4 test cards, and 4 dropper bottles with simple instructions
HSA/FSA ELIGIBLE: Abbott’s BinaxNOW at-home COVID test kits are HSA/FSA eligible
TRUSTED TECHNOLOGY: FDA authorized BinaxNOW COVID tests utilize the same technology doctors use to test for COVID-19; BinaxNOW rapid COVID tests detect multiple COVID-19 variants*
FAST COVID-19 TEST RESULTS: Each COVID rapid test provides fast, reliable results in just 15 minutes—no appointment required
FOR AGES 2 and ABOVE: COVID-19 tests are suitable for kids when administered by an adult; ages 15 and older are able to self-administer COVID home tests with easy-to-follow instructions
REPEAT TESTING: Symptomatic individuals with negative results should test twice over 3 days, with at least 48 hours between testing; asymptomatic individuals should test 3 times over 5 days, with at least 48 hours between tests
#1 COVID-19 SELF TEST IN THE USA: Made with the same reliable technology used by doctors. Detects multiple COVID-19 variants, including Delta and Omicron*
FAST RESULTS: At home test with results for you or your family in 15 minutes; no need for a prescription or sending to a lab
TRUSTED TECHNOLOGY: Identical to the test used by professionals; intended for personal use with self-reported results and has Emergency Use Authorization from the FDA
CONVENIENTLY TEST AT HOME: 2 nasal swab tests are included to detect active infection, with or without symptoms
FSA/HSA ELIGIBLE: Test may be reimbursed, depending on coverage; contact your health insurance company to learn more
FOR AGES 2 TO ADULT: For children as young as 2 years old when administered by an adult, and for all people 15 and older to self-administer
COVID TEST KITS: 10 BinaxNOW COVID-19 Rapid Test Kits includes 10 foam-tipped swabs, 10 test cards, and 10 dropper bottles with simple instructions
HSA/FSA ELIGIBLE: Abbott’s BinaxNOW at-home COVID test kits are HSA/FSA eligible
TRUSTED TECHNOLOGY: FDA authorized BinaxNOW COVID tests utilize the same technology doctors use to test for COVID-19; BinaxNOW rapid COVID tests detect multiple COVID-19 variants*
FAST COVID-19 TEST RESULTS: Each COVID rapid test provides fast, reliable results in just 15 minutes—no appointment required
FOR AGES 2 and ABOVE: COVID-19 tests are suitable for kids when administered by an adult; ages 15 and older are able to self-administer COVID home tests with easy-to-follow instructions
REPEAT TESTING: Symptomatic individuals with negative results should test twice over 3 days, with at least 48 hours between testing; asymptomatic individuals should test 3 times over 5 days, with at least 48 hours between tests
Last update on 2026-09-01 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Lab Antigens
Source and Supplier Reputation
Choose antigens from well-established and reputable suppliers known for their quality control and product consistency. Consider the supplier's track record, customer reviews, and the availability of technical support. A reliable source ensures that the antigens meet stringent quality standards and will perform as expected in your research or diagnostic workflow.
Frequently Asked Questions
What is the difference between a native and a recombinant antigen?
Native antigens are isolated directly from their natural source, such as a virus or bacterium. Recombinant antigens are produced using genetic engineering techniques, where the gene for the antigen is inserted into a host organism for expression. Recombinant antigens often offer higher purity and consistency.
How do I determine the correct concentration for my assay?
The optimal concentration is assay-dependent and often determined empirically through titration experiments. Factors such as antibody affinity, detection method, and desired sensitivity will influence the ideal concentration. Consult the product datasheet for initial recommendations.
What is a Certificate of Analysis (CoA)?
A Certificate of Analysis (CoA) is a document provided by the manufacturer that verifies the quality and specifications of a particular lot of product. It typically includes details on purity, identity, and testing results, confirming the product meets established standards.
Can antigens expire?
Yes, antigens can degrade over time, especially if not stored correctly. Their biological activity can be lost, leading to reduced performance in assays. Always check the expiration date and follow recommended storage conditions to maximize shelf life.
What is the difference between an antigen and an antibody?
An antigen is a substance that can trigger an immune response, typically by binding to antibodies. An antibody is a protein produced by the immune system to identify and neutralize foreign substances like antigens. They have opposing roles in the immune system.
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