Why flocked swabs are better than traditional cotton swabs

1. What is a flocking swab?

The top of the flocking swab is a nylon fiber structure. The nylon fibers are sequentially deposited on the surface of the plastic rod in a certain direction through an electrostatic field to form a brush-shaped layer. The layers are fully parallel and perpendicular to the inner rod. The surface of the brush head is used for DNA collection. At present, COPAN4N6 FLOQSwabs flocked swabs have been patented in China, the United States, Japan and other countries and regions.

2. What are the advantages of flocking swabs for DNA collection?

Sample collection process: The unique structure of the top of the flocked swab can greatly increase the number of samples collected

Sample precipitation process: The brush-shaped layer structure can release approximately all the collected samples.

3. Why are flocking swabs more advantageous for micro DNA collection?

Due to the internal structure of traditional cotton swabs, which are entangled with cotton fibers at the top, the sample will be dispersed by its fiber clusters and remain in the fibers during sampling, resulting in lower precipitation efficiency of DNA with low content, and even causing false negatives in the test. result.

The unique structure of the top of the flocking swab can almost completely extract and precipitate a very small amount of DNA, so the flocking swab has a more obvious advantage in the collection of trace DNA.

4. The principle of DNA collection and precipitation by flocking swabs?

(1) Through the directional wiping effect of the brush-shaped fiber layer, the cell samples can be completely recovered;

(2) Since the cell samples are concentrated on the near surface of the brush-shaped fibers, about 90% of the absorbed samples can eventually be released.

(3) The capillary movement between the nylon fibers at the top of the flocking swab forms a strong hydraulic pressure to absorb liquid or cell samples;