Fig. 7. Detection of heavy metals. (a) QD/DNA/ AuNP sensor for Hg2+ detection. (b) SERS nanosensor for Cd2+detection.

This research was financially supported by the Republic of Korea ; Basic Science Research Program (NRF Grant number: 2021R1A6A1A03044242, 2018007551 & 2020R1A6A3A01099837); financed by the Korean Government, Republic of Korea. Researchers Supporting Project number (RSPD2023R677), Korea Basic Science Institute (Grant no. C313000); Ministry of Education, Science and Technology, Republic of Korea (2022R1F1A1063364).