Ultra-sensitive immunosensing of snake venom by functionalized Sm-Co doped antimony-tungstate.

Snake venom has long-term physiological effects on survivor's life. An electrochemical immunosensor based on samarium-cobalt-doped antimony tungstate (SbWO@Sm-Co) is developed via a solvothermal method to detect snake venom antigens (SVA). The fabricated nanospheres are functionalized with carboxyl groups to enhance the linkage of the 3-mercaptopropionic acid linker (3-MPA).