Unisart® CN 180 is the most sensitive lateral flow membrane in our portfolio with a capillary speed of 135 - 175 s/40 mm. It consists of a thin microporous nitrocellulose membrane on a 100 µm clear polyester backing. The total thickness is 225 - 255 µm. Unisart® CN 180 is the membrane of choice when very high sensitivity is needed. This membrane with its superior sensitivity is perfectly suited for critical assays such as HIV tests. Unisart® diagnostic membranes have been designed to be the best substrate for rapid antigen tests. All backed Unisart® membranes perfectly fit diagnostic manufacturer production needs from thousand strips on manual cards to million strips on reel-to-reel equipment. Their white, even and smooth surface is free of macroscopic defects and foreign matters allowing a consistent dispensing of sharp capture and control lines.