The invention relates to a
chip device adopting PDMS as a substrate material for subtype swine
flue detection, and belongs to the field of analytical tests.
Polydimethylsiloxane (PDMS) which is low in price and extremely easy to process is used for making the substrate of a
microfluidic chip for subtype swine
flue diagnosis, and some problems actually exist; the surface of PDMS is strongly lyophobic, the effect of specific
surface modification or surface decoration has difficulty in being lasting, and the invention aims at solving the series of related problems. The
chip device adopting PDMS as the substrate material for subtype swine
flue detection is characterized in that a substrate adopts PDMS with an original surface, a hinge type fixture additionally provided with a miniature ultrasonic
transducer is manually fastened and positioned on a nearest location of a sample flow terminal of the
microfluidic chip, the interfacial tension is reduced through ultrasonic
waves, and meanwhile by means of a
high absorption capacity of PDMS for the ultrasonic
waves, the ultrasonic wave intensity is decreased progressively and rapidly within a
short distance; an interfacial tension difference is formed at the two ends of the
chip, and therefore a sample flow is promoted to flow along an original hydrophobic
capillary channel in the terminal direction.