Fabrication of 3D Fingerprint Phantoms via Unconventional Polycarbonate Molding.

ABSTRACT: Fingerprint biometrics is a valuable and convenient security tool; every fingerprint is highly detailed and unique, we always have them on "hand". Herein we describe a novel bench-top method of making 3D fingerprint replicas (namely, fingerprint phantoms) by exploring a unique microfabrication approach using conventional polymeric materials, to aid the development of reliable and accurate fingerprint biometrics. By pressing an impression of human fingerprints onto solvent-softened plastic plates (e.g., polycarbonate chips), followed by casting with polydimethylsiloxane (PDMS, a popular elastomer), we can produce a flexible, nanoscale detailed, 3D reproduction of the fingerprint ("phantom"). By testing with standard optical fingerprint scanners, we have shown that all three levels of finger

SUBMITTER: Schultz CW 

PROVIDER: S-EPMC6018551 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature