Microfluidic paper-based analytical devices (μPADs) have garnered significant interest as a
promising analytical platform in the past decade. Compared with traditional microfluidics …

Paper has been used as a substrate material in analytical testing for centuries, with scientific
reports dating back to the early 1800s with litmus paper. 1 As a substrate material, paper …

High sensitivity, good signal repeatability, and facile fabrication of flexible surface enhanced
Raman scattering (SERS) substrates are common pursuits of researchers for the detection of …

Plant pathogen detection conventionally relies on molecular technology that is complicated,
time-consuming and constrained to centralized laboratories. We developed a cost-effective …

Smartphone has been widely integrated with sensors, such as test strips, sensor chips, and
hand-held detectors, for biochemical detections due to its portability and ubiquitous …

Paper-based devices are a leading alternative among the main analytical tools for point-of-
care testing, due to their portability, low-cost, and ease-of-use. Colorimetric readouts are the …

Explosive trace detection (ETD) technologies play a vital role in maintaining national
security. ETD remains an active research area with many analytical techniques in …

Nowadays, in situ analysis attracts the interests and becomes one of the main purposes in
analytical chemistry. Design of portable analysis devices facilitates reaching this goal. An …

This current review article focuses on recent contributions to on-site forensic investigations.
Portable and potentially portable methods are presented and critically discussed about (bio) …

Chemical analysis based on colour changes recorded with imaging devices is gaining
increasing interest. This is due to its several significant advantages, such as simplicity of …