Ulusi wotsekereza madzi, chinthu chatsopano - ulusi wa porous ulusi wotupa madzi -kutchinga ulusi womwe umagwiritsidwa ntchito potsekereza madzi amitundu yatsopano ya zingwe zowuma zowuma, umapangidwa ndi kupangidwa ndi kampani potengera umisiri watsopano wotsekereza madzi mu optical and kupanga chingwe chamagetsi kunyumba ndi kunja. Amadziwika ndi ubwino monga kuthamanga kwa madzi othamanga, chiŵerengero cha kukula kwakukulu, kupanikizika kwamphamvu, palibe asidi ndi maziko, palibe zotsatira zogwirizana zomwe zimaperekedwa pa zingwe, kukhazikika kwa thermo, kukhazikika kwa mankhwala ndi kusawononga etc. kudzazidwa kwa zinthu monga odzola chingwe, tepi yotchinga madzi ndi zomangira ulusi etc. akhoza kuchotsedwa.