Given heavy metals pose huge threats to ecological system and human health, it is significant to monitor them. With the favorable feature of catalytic signal amplification, redox-type nanozymes have been widely used to detect heavy metals. However, the presence of redox substances in samples can interfere with these catalytic reactions, impacting the accuracy and repeatability of detection. To avoid the situation, here we designed a non-redox nanozyme (3-mercaptopropionic acid modified nanoceria, MPA-CeO2) and developed a novel approach free fr...
