Issue 4, 2019

High-efficiency transfer of fingerprints from various surfaces using nanofibrillated cellulose

Abstract

Fingerprint identification, initially developed as physical evidence for personal identification at crime scenes, has become extraordinarily useful in many fields, such as passwords for computers and smartphones, codes for security clearance and so forth. But the development of fingerprints is often plagued by the real environment and un-uniform nature of most substrates, which lead to the partial or complete absence of information. A particular bottleneck in these applications is latent fingerprint (LFP) visualization on rough surfaces. In this report, we developed a fluorescent nanofibrillated cellulose/carbon dot (NFC/CD) paper to address the high-efficiency transfer and detection of LFPs on different substrates simultaneously. We can transfer most of the feature points from rough surfaces onto the NFC/CD paper, whereas we can extract few feature points from a rubber substrate using cyanoacrylate fuming and staining with super-paramagnetic iron oxide nanoparticles. The NFC/CD paper has great potential in the fields of image analysis, packaging, smartphones, entrance clearance, personal identification, and mobile payments.

Graphical abstract: High-efficiency transfer of fingerprints from various surfaces using nanofibrillated cellulose

Supplementary files

Article information

Article type
Communication
Submitted
20 Des. 2018
Accepted
25 Feb. 2019
First published
01 Mrt. 2019

Nanoscale Horiz., 2019,4, 953-959

High-efficiency transfer of fingerprints from various surfaces using nanofibrillated cellulose

Y. Liu, K. Long, H. Mi, R. Cha and X. Jiang, Nanoscale Horiz., 2019, 4, 953 DOI: 10.1039/C8NH00494C

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