CS	Chitosan
TPP	Tripolyphosphate
LBL	Layer by layer
FITC	Fluorescein isothiocyanate
ZnONPs	Zinc oxide nanoparticles
ROS	Reactive oxygen species
MW	Molecular weight
FCSNPs	Fluorescent chitosan nanoparticles
CPT	Camptothecin
PEC	Polyelectrolyte complexation
CCHNs	Chitosan–carbon dot hybrid nanogels
SERS	Surface-enhanced Raman spectroscopy
MEF	Metal-enhanced fluorescence
SPA	Surface plasmon resonance
PL	Photoluminescence
LPNs	Luminescent polymeric nanoparticles
NIRF	Near-infrared fluorescent
ACQ	Aggregation-caused quenching
AIEgens	Aggregated-induced emission luminogens
NPs	Nanoparticles
AuNPs	Gold nanoparticles
AgNPs	Silver nanoparticles
QDs	Quantum dots
CDs	Carbon dots
AIE	Aggregated-induced emission