Biosensors Fabricated by Laser-Induced Metallization on DLP Composite Resin

With the growing emphasis on medical testing, people are seeking more technologies to detect indexes of the human body quickly and at a low cost. The electrochemical biosensors became a research hotspot due to their excellent properties. In this study, dicopper hydroxide phosphate (Cu-2(OH)PO4) was incorporated in resin, and the resin sheets were prepared by digital light processing (DLP). The copper base points were activated on the resin sheet surface by Nd: YAG laser and then covered by the electroless copper plating and the electroless silver plating. The laser could effectively activate copper base points on the resin surface. Furthermore, silver electrodes on the detection chips could distinguish glucose solutions of different concentrations well. Finally, a novel detection kit with a three-electrode chip was designed for rapid health testing at home or in medical institutions in the future.

Automated summary

In this study, dicopper hydroxide phosphate was added to resin to prepare resin sheets. The copper base points on the resin surface were activated by laser and silver electrodes on the detection chips effectively distinguished glucose solutions of different concentrations. A novel detection kit with a three-electrode chip was designed for future rapid health testing.