I. What is flocked swab?

The flocked swab tip is a nylon fiber structure, which is deposited on the surface of the plastic rod sequentially in a certain direction by electrostatic field, forming a brush-shaped layer, whose layers are fully parallel to each other and perpendicular to the surface of the internal rod, through which the DNA collection is carried out.

Currently COPAN4N6 FLOQSwabs flocked swabs have been patented in many countries and regions such as China, USA and Japan.

Second, what are the advantages of flocked swabs for DNA collection?

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

Sample extraction process: The brush-shaped layer structure can release nearly all of the collected samples.

Why are flocked swabs more advantageous for micro DNA collection?

Due to the internal structure of the cotton fiber entangled at the tip of the swab, the sample will be scattered and retained in the fibers during sampling, resulting in lower efficiency of DNA extraction, which may even cause false negative results of the test.

The unique structure of the tip of the flocked swab can extract and precipitate almost completely for a very small amount of DNA, so the flocked swab has more obvious advantages in the collection of trace DNA.

Fourth, the principle of flocked swab for DNA collection and precipitation?

(1) The cell sample can be completely replenished by the directional wiping effect of brush-shaped fiber layer.

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

(3) The capillary motion between the nylon fibers at the tip of the flocked swab creates a strong hydraulic pressure to absorb liquid or cellular samples.