Responsive carbon dot-embedded hybrid microgels for dual sensing of iron(iii) and ciprofloxacin

and CIP in an "off-on" manner. Furthermore, the material exhibited excellent recovery rates, ranging from 86% to 108%, when applied to the analysis of real samples containing CIP. In addition to its sensing capabilities, the hybrid system was effectively utilized as a fluorescent ink, offering advanced anti-counterfeiting solutions and bolstering information security. This study highlights the substantial potential of NCQD-based hybrid materials in diverse sensing applications and their implications for practical innovations.