Digital image colorimetry (DIC) on smartphone is regarded as a powerful, fast and low-cost
analysis method to measure target analyte with color changes of digital image obtained by …

The emergence of the smartphones has brought extensive changes to our lifestyles, from
communicating with one another, to shopping and enjoyment of entertainment, and from …

The flexible photodetector plays an important role in improving human medical health status.
However, the narrow spectral detection range, poor stress stability, and non‐degradation of …

Blood is one of the most frequent and valuable traces encountered at crime scenes, where
knowing the time since deposition (TSD) of bloodstains tremendously assists forensic …

Bloodstains discovered at crime scenes can provide crucial information to an investigation.
By obtaining a DNA-profile from the bloodstain, it can be used to link someone to a crime …

Blood is a complex colloidal suspension which carries myriads of information about human
health. Understanding the evaporation dynamics and its consequent deposition patterns …

We present a sunlight based handheld smartphone spectrometer. The device first gathers
the sunlight to pass through the sample, and then the transmitted light illuminates on a …

Numerous studies reported that psychological fatigue is one of the main reasons leading
fatal road crashes. In order to quantify fatigue level of each subject, we measured a …

Over the last few years, smartphone-based sensors present a rapid development in the field
of point-of-care (POC) testing owing to the properties of ubiquity and convenience …

Bloodstains found at crime scenes represent a crucial source of information for investigative
purposes. However, in forensic practice, no technique is currently used to estimate the time …