Splet01. sep. 2016 · The results of the study demonstrate that the hydrochromic film, which displays a blue-to-red color transition upon hydration, can be used to map human sweat secreting pores. The hygroscopic... SpletN2 - In this study, we present a simple method for mapping sweat pores using a water-soluble polymer matrix film. Local adsorption of sub-nanoliter water secreted from sweat pores on human fingertips creates discrete microdimples on the hydrophilic polymer film. These microdimples can be readily visualized by a conventional optical microscope.
Hydrochromic conjugated polymers for human sweat pore mapping …
Splet17. nov. 2024 · As the Level 3 features of fingerprint, sweat pores have attracted attention in the field of fingerprint recognition and have been successfully applied to automatic fingerprint recognition systems. Traditional surface sweat pores become unclear or disappeared when the finger is contaminated, dried, or damaged. These unstable factors … Splet01. apr. 2024 · As shown in Fig. 6c, the sweat pores mapping from a donor was deposited on a filter film with homogeneous Yb/Tb/Eu-BTC nanoparticles dispersion. The residual water on the finger leads to a change of emission color from yellow to magenta, forming the fingerprint pattern. schatzki ring cancer risk
Simultaneous extraction of level 2 and level 3 ... - ScienceDirect
SpletA simple but efficient sweat pore mapping method based on a fluorescein-PVP composite film was developed for fingerprint analysis. The composite film displays a fluorometric … Splet29. apr. 2014 · As a result, the sensor can be used to construct a precise map of active sweat pores on fingertips. The sensor technology, developed in this study, has the … Splet09. maj 2016 · Recent advances in the design of these materials have led to novel applications, including monitoring the water content of organic solvents, water-jet-based … schatzki ring and chest pain