Acid-Fast Bacilli Testing Services
Mycobacteria are a unique class of rod-shaped bacteria. Due to their lipid-rich cell walls (primarily mycolic acids), these bacteria stubbornly retain their primary stain color even after a harsh acid wash during standard laboratory staining procedures. Because of this defining characteristic, they are broadly known in microbiology as Acid-Fast Bacilli (AFB).
In the fields of biomedical and infectious disease research, AFB testing is a foundational tool for investigating pathogen characteristics. While it can be used to analyze various types of acid-fast bacilli (including Non-Tuberculous Mycobacteria, NTM), it is most commonly used in research to identify and study the pathogen models of active Tuberculosis (TB). Accurate AFB testing holds irreplaceable scientific value for uncovering TB pathogenesis, evaluating the in vitro efficacy of novel antimicrobials, and conducting retrospective epidemiological studies.
Our Services
To address common research bottlenecks such as the slow growth rate and lengthy cultivation cycles of mycobacteria, we have established a comprehensive research testing matrix that spans morphological identification, immunological analysis, and drug resistance profiling:
- High-Resolution Microscopy:
- Acid-Fast Smear: Utilizing classic microscopic screening methods (e.g., Ziehl-Neelsen stain) to quickly and visually locate red, rod-shaped bacteria that retain the stain in cell cultures or experimental samples, providing a morphological baseline for pathogenesis studies.
- Fluorescent Microscopy Analysis: Employing high-sensitivity fluorescent staining to significantly improve the detection rate of AFB in low-titer experimental samples and drastically boost reading efficiency for medium-to-high throughput batches.
- Specific Immunological Testing:
- Antigen Detection: Bypassing the time constraints of traditional cultures by directly capturing specific mycobacterial antigens in experimental samples. This provides direct evidence for assessing pathogen loads in in vitro assays or animal infection models.
- Serological Analysis: Measuring specific immune responses (antibody levels) against acid-fast bacilli in animal models or specific retrospective samples, offering supplementary data for host-pathogen interaction studies.
- Precision Antimicrobial Susceptibility Testing (AST):
- To combat the escalating global challenge of drug resistance, we offer comprehensive in vitro drug sensitivity testing. By precisely determining the Minimum Inhibitory Concentration (MIC) alongside automated AST systems, we efficiently evaluate the susceptibility of pathogen strains to various candidate compounds or traditional anti-TB drugs. This provides core data support for novel anti-TB drug discovery.
Our Advantages
Our core advantage lies in building a complete research service loop—from rapid pathogen characterization to precise resistance mechanism evaluation. Leveraging advanced fluorescent imaging and automated AST platforms, we significantly enhance the detection sensitivity of ultra-low-titer samples while drastically shortening the traditionally long cycles of mycobacterial identification. Whether you are delving deep into TB pathogenesis or evaluating the in vitro inhibitory efficacy of novel antibiotic candidates, we deliver absolutely rigorous and reliable experimental data that strictly complies with international biosafety standards.
Workflow
We engage deeply with your R&D team to select the most suitable assay combination based on your specific research needs (e.g., novel drug screening, resistance mechanism exploration, or NTM strain differentiation).
Given the high bio-risk of mycobacteria, we provide research sample handling guidelines and professional cold chain transport protocols that comply with BSL-2/BSL-3 biosafety standards.
Upon arrival, research samples undergo pre-processing in strict biosafety cabinets, followed by synchronized microscopy, immunological assays, or automated AST.
Senior microbiology research experts cross-verify microscopic images, immunological signals, and MIC values to Deliver a structured, professional research data report
On the research path of exploring TB pathogenesis and combating the challenge of drug resistance, high-quality pathogen analysis is the cornerstone of breakthroughs. We look forward to being your trusted research partner with our exceptional technology platform and rigorous scientific attitude. Contact our expert team today to discuss your project needs and let's drive scientific discovery in the field of acid-fast bacilli together!
