| 摘要 |
The electrochemical lateral flow biosensor (ELFB) comprising a novel ELFB strip and electronic detector unit, to which said strip is connected using cable or wirelessly. The strip is made of (a) polymeric hydrophobic membrane, wherein said membrane provides a solid support and enables the capillary flow along the strip; (b) conjugation pad, wherein said pad is placed over and in contact with said membrane at one end of the strip and contains formulation of the adsorbed dehydrated labelled conjugate particles, wherein said conjugate particles are coated with the biorecognition element of the assay and coated or filled with the electrochemically active component (EAC); (c) sampling pad, wherein said pad is placed on top of and in contact with said conjugation pad and provides adsorption of the liquid sample; (d) screen-printed electrode (SPE), wherein said electrode is coated with the immobilised capture antibodies; and (e) wick pad, wherein said pad is placed on top and in contact with said SPE and provides absorption of excess reagents maintaining a lateral flow along the strip. The ELFB can be used for rapid and early detection and quantity analysis of bacterial, parasitic, viral infections, and tumours in biological liquids, toxins, mycotoxins, explosives and other pollutants in wastewater. |
