# Antibody / Antigen for STD Detection —— HBV HCV HIV TP

> Source: https://www.cnpairbio.com/hbv-hcv-hiv-tp-antigens-antibodies/
> Author: CNPAIR
> Published: 2025-07-16
> Updated: 2026-09-18

Sexually transmitted diseases (STDs) continue to pose a significant global public health challenge. Cnpair is committed to enhancing blood safety and supporting effective disease control. Cnpair supplies premium HBV HCV HIV TP antigens antibodies.

## Cnpair STD Materials——

- HBV: Hepatitis B Virus
- HCV: Hepatitis C Virus
- HIV: Human lmmunodeficiency Virus
- TP: Treponema Pallidum

### Comprehensive Coverage

One-stop supply of detection reagents for HBV, HIV, HCV, TP, and more-compatible a wide range of diagnostic applications.

### Quality Assurance

IS0 13485 &1S0 9001 certified, committed to delivering high-quality, reliable products and services.

### Custom Services

Custom products & solutions, including antigen/antibody conjugates and other custom services.

## •HBV Detection Material•

 ![Cnpair HBV detection materials advantage](https://www.cnpairbio.com/wp-content/uploads/2025/07/cnpair-HBV-materials-advantages-1.jpg)

Our product portfolio includes HBsAg, HBcAb, HBeAg, and HBV Pre-S1, enabling accurate identification of various stages of HBV infection. In a clinical evaluation involving 138 mutant strains, Cnpair successfully detected 107 strains (77.5%), demonstrating industry-leading performance in mutation detection.

 ![mutation detection](https://www.cnpairbio.com/wp-content/uploads/2025/07/Antibody-Antigen-for-Intestine-Detection7-539x1024-2.png)

## •HIV Detection Material•

 ![Cnpair HIV detection materials advantage](https://www.cnpairbio.com/wp-content/uploads/2025/07/cnpair-HIV-materials-advantages.jpg)

Cnpair’ s materials are designed for use in both third and fourth-generation HIV assays, including reagents for HIV-1/2/O antibodies and [p24 antigen](https://www.cnpairbio.com/immunoassay-diagnostics/std/human-immunodeficiency-virus/what-is-p24-antigen/), effectively reducing the diagnostic window period. In BBI seroconversion panel testing, Cnpair demonstrated 100% concordance with leading global companies in Chemiluminescence Immunoassay (CLIA) platform.

 ![Cnpair BBI seroconversion panel testing](https://www.cnpairbio.com/wp-content/uploads/2025/07/Antibody-Antigen-for-Intestine-Detection-1-691x1024-1.jpg)

## •HCV Detection Material•

 ![Cnpair HCV detection materials advantage](https://www.cnpairbio.com/wp-content/uploads/2025/07/cnpair-HCV-materials-advantages.jpg)

Cnpair uses NS3 and CORE antigen for coating and detecting. NS3 is a key protease in the HCV virus replication, while CORE is a major structural protein containing multiple immunodominant epitopes. The chimeric design covers multiple key HCV epitopes, reducing the risk of missed detection and providing a powerful tool for the early detection and intervention of HCV infection.

## •TP Detection Material•

 ![Cnpair TP detection materials advantage](https://www.cnpairbio.com/wp-content/uploads/2025/07/cnpair-TP-materials-advantages.jpg)

Cnpair provides multiple antigen combination options, including chimeric antigens and fragmented antigens ([15KD, 17KD, 47KD](https://www.cnpairbio.com/immunoassay-diagnostics/std/std-detection/what-is-treponema-pallidum-antibody/)):
1.Chimeric pairing: streamlines the process while maintaining sensitivity.
2.Chimeric coating and mixed fragment detecting: multi-epitopes signal amplification, fewer false positives.
3.Chimeric pairing and supplementary fragments: enhances targeted epitopes recognition, and overcome interference from complex samples.

These combinations ensure both sensitivity and specificity, as well as stability, with a storage condition of 2-8℃ for 15 months and a positive signal deviation of ≤±20%.

 ![Storage stability at 2-8℃](https://www.cnpairbio.com/wp-content/uploads/2025/07/Antibody-Antigen-for-Intestine-Detection6-747x1024-1.png)