Polymers on the Crime Scene

Causin, Valerio

doi:10.1007/978-3-319-15494-7

Cited by 13 publications

(2 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Both the ALSs and the specific chemicals are important for the detection of a great variety of latent traces that can be found on the crime scene; these techniques are portable, cheap, easy to use and can be operated in combination with chemical screening tests [ 13 ]. The visualization of latent traces does not represent sample identification but indicates possible evidence; locating the traces also helps successive sample retrieval, classification and documentation [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Crime Light Imaging (CLI): A Novel Sensor for Stand-Off Detection and Localization of Forensic Traces

Chiuri,

Chirico,

Angelini

et al. 2023

Sensors

View full text Add to dashboard Cite

Stand-off detection of latent traces avoids the scene alteration that might occur during close inspection by handheld forensic lights. Here, we describe a novel sensor, named Crime Light Imaging (CLI), designed to perform high-resolution photography of targets at a distance of 2–10 m and to visualize some common latent traces. CLI is based on four high-power illumination LEDs and one color CMOS camera with a motorized objective plus frontal filters; the LEDs and camera could be synchronized to obtain short-exposure images weakly dependent on the ambient light. The sensor is integrated into a motorized platform, providing the target scanning and necessary information for 3D scene reconstruction. The whole system is portable and equipped with a user-friendly interface. The preliminary tests of CLI on fingerprints at distance of 7 m showed an excellent image resolution and drastic contrast enhancement under green LED light. At the same distance, a small (1 µL) blood droplet on black tissue was captured by CLI under NIR LED, while a trace from 15 µL semen on white cotton became visible under UV LED illumination. These results represent the first demonstration of true stand-off photography of latent traces, thus opening the way for a completely new approach in crime scene forensic examination.

show abstract

Section: Introductionmentioning

confidence: 99%

Crime Light Imaging (CLI): A Novel Sensor for Stand-Off Detection and Localization of Forensic Traces

Chiuri,

Chirico,

Angelini

et al. 2023

Sensors

View full text Add to dashboard Cite

show abstract

“…The monomers designated to generate a polymer can be either of the same type or different types of chemical compounds, depending on which polymers are broadly classified into homopolymers (same monomers) or copolymers (different monomers). 4 These polymers possess a wide range of biomedical applications, extending from implant material fabrication to targeted drug delivery. 5,6 The utilization of chemical monomers to form polymers, such as polypropylene, polystyrene and polyethylene, can provide high mechanical stability to them and they can be used for numerous electronic or thermal applications.…”

Section: Introductionmentioning

confidence: 99%