General News

Since the COVID-19 pandemic, wastewater-based epidemiology (WBE) has become an essential tool for public health surveillance. By detecting pathogens in wastewater before widespread clinical cases emerge, health authorities can gain earlier insights into community-level transmission and respond more proactively.

However, obtaining reliable molecular results begins long before PCR.

Wastewater is one of the most challenging sample types for nucleic acid extraction. Beyond the target pathogens, it contains humic substances, organic contaminants, metal ions, suspended solids, and other PCR inhibitors that can interfere with lysis, nucleic acid binding, washing efficiency, and downstream amplification. In addition, pathogen nucleic acids are often present at extremely low concentrations and may be fragmented or adsorbed onto particulate matter, making efficient recovery even more difficult.

At Tianlong, we designed our Wastewater Nucleic Acid Extraction Kit to address these real-world challenges.

· Optimized sample preparation chemistry
Our extraction chemistry is engineered to minimize matrix interference by improving lysis efficiency, reducing organic contaminants, chelating inhibitory metal ions, and creating an optimized extraction environment. This helps maximize the release and recovery of trace nucleic acids from complex wastewater samples.

· Proprietary magnetic bead technology
Our uniquely modified magnetic beads, together with an optimized buffer system and washing workflow, deliver high affinity for fragmented nucleic acids while effectively removing impurities, resulting in cleaner extracts for downstream molecular testing.

Why it matters?

· High nucleic acid recovery from challenging wastewater samples
· Reliable removal of PCR inhibitors
· Efficient processing with reduced sample input
· Consistent performance for environmental and public health surveillance

As wastewater surveillance continues to play a growing role in infectious disease monitoring, robust sample preparation remains the foundation for generating reliable molecular data.