Enantioselective recognition and detection of cysteine using a three-dimensional Mn 1/3 Zn 2/3 CO 3 -rGO/CNT heterostructure-based molecularly imprinted sensor

for L-Cys detection, and exhibited significant enantioselectivity at the same concentration (L/D = 4.248 ± 0.01; D/L = 5.033 ± 0.50). This method offers high sensitivity and stability, and applicability for complex biological sample analysis, providing a robust technical platform for chiral recognition and pharmaceutical research.