An innovative strategy for circularly polarized luminescence (CPL) of carbon dots (CDs) has been developed: The achiral CDs displayed contrary supramolecular chirality and opposite CPL in two different bi-solvent systems, which are due to the formation of self-assembled helical nano-structures with two diverse assembly modes (P and M) in aggregate state via intermolecular π-π interactions and differential hydrogen bonding (H-bonding) without the need of any additional element of chirality.

Signal amplification strategies increased the complexities of biosensors while improving the response signals. Herein a novel electrochemical biosensor was developed based on the DNA hydrogel for sensitive analysis using the...

We found that the complexes of nucleotides and terbium (III) had circularly polarized luminescence (CPL). The CPL of GMP/Tb/Ag coordination polymer nanoparticles (CPNs) was converted by magnetic field and pH....