The collection of biometric or crime scene samples is a key step in the investigation process. As critical as this step is, however, traditional collection tools such as swabs and FTA cards leave significant room for error or unusable samples. After collection, inadequate resources can often lead to a backlog of several weeks or months to process the samples, therefore increasing the possibility of yielding invalid results. Factors that can negatively impact sample integrity include:
– Improper storage and transport can lead to bacterial or mold growth
– DNases and RNases released by collected cells can degrade DNA rapidly
– Over drying of the sample can result in the irreversible binding of DNA
Intended Use
iSWAB-ID is an efficient sample collection system for evidentiary and reference DNA samples, which enables long term room temperature stabilization of the collected sample at the point of collection, while ensuring proper chain of custody. This system allows for maximizing sample recovery and obtaining human DNA compatible with ID profiling assays. DNA extraction can be performed using any commercially available whole blood extraction chemistry.
Non-invasive sample collection tube for collection and stabilization of evidentiary and reference DNA samples. Efficiently recovered and stabilized DNA of forensic significance at the point of collection.
Unlike processing traditional swabs, collecting samples with iSWAB-ID allows for multiple runs for analysis and archiving purposes. Collected samples are stable over 5 years at room temperature storage (based on accelerated stability testing).
Features
The iSWAB-ID device represents a significant advancement in sample collection and stabilization technology. Our proprietary system overcomes the
hurdles associated with current methods and offers the following advantages:
- Collect: Can be used for the collection of Touch DNA & Reference Samples (e.g. buccal cells, blood spots, sweat, semen, and any other body fluid)
- Concentrate and Stabilize: Complete release and stabilization of the sample from the swab into the iSWAB tube at the point of collection (no drying
time required) - Record: Pre-barcoded components to maintain chain of custody
- Transport and Store: Room temperature transport and long term storage
- Analyze: High DNA recovery allows for several runs of Direct PCR, Genotyping and DNA sequencing (Sanger & NGS)
