Colloidal self-assembly refers to a solution-processed assembly of nanometer-/micrometer-
sized, well-dispersed particles into secondary structures, whose collective properties are …

Optically variable devices (OVDs) are in tremendous demand as optical indicators against
the increasing threat of counterfeiting. Conventional OVDs are exposed to the danger of …

Dynamic patterning of soft materials in a fully reversible and programmable manner with
light enables applications in anti-counterfeiting, displays and labelling technology. However …

Though fluorescence‐tag‐based anti‐counterfeiting technology has distinguished itself with
cost‐effective features and huge information loading capacity, the clonable decryption …

The search for feasible strategies to construct molecular materials whose physical properties
can be modulated dynamically by external stimuli, especially light for sunlight is the cleanest …

Fluorescent patterns showing the unique color change in response to external stimuli are of
considerable interest for their applications in anti‐counterfeiting. However, there is still a lack …

Upconversion luminescence is characterized by the conversion of near-infrared excitation
into ultraviolet and visible emissions through a special class of doped optical materials …

Smart materials based on stimuli-fluorochromic π-conjugated solids (SFCSs) have aroused
significant interest due to their versatile and exciting properties, leading to advanced …

Hydrochromic materials have attracted widespread attention in the fields of anti‐
counterfeiting because of their ability of the reversible light absorption and/or emission …

The growing prevalence of counterfeit products worldwide poses serious threats to
economic security and human health. Developing advanced anti-counterfeiting materials …