Counterfeiting and inverse engineering of security and confidential documents, such as
banknotes, passports, national cards, certificates, and valuable products, has significantly …

Abstract 3D printing, also known as additive manufacturing, is a manufacturing process in
which the materials are deposited layer by layer in an additive manner. With the …

This review summarized the applied techniques and applied nanomaterials (NMs) for the
progress of latent fingerprints (LFPs) images on several surfaces. Used numerous types of …

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

Optical nanomaterials have been widely used in anticounterfeiting applications. There have
been significant developments powered by recent advances in material science, printing …

An ideal anti-counterfeiting technique has to be inexpensive, mass-producible,
nondestructive, unclonable and convenient for authentication. Although many anti …

Multifunctional lanthanide-based upconversion nanoparticles (UCNPs), which feature
efficiently convert low-energy photons into high-energy photons, have attracted …

Luminescence lifetime imaging has exhibited significant advantages over traditional optical
imaging in terms of precise quantification detection because of the intrinsic stability of …

Owing to their capability of bypassing conventional high-priced and inflexible silicon based
electronics to manufacture a variety of devices on flexible substrates by using large-scale …

Iron oxide nanoparticles (NPs) hold great promise for future biomedical applications
because of their magnetic properties as well as other intrinsic properties such as low toxicity …