Absorbance-based detection of arsenic in a microfluidic system with push-and-pull pumping

Electromechanical RT-LAMP device for portable SARS-CoV-2 detection

“…The analyses were conducted on images taken after 70 min of amplification. The limit of quantification (LOQ) signal was calculated as mean + 10 × SD of the mean of the HCV negative control group, which gives the highest detection signal among the control groups [ 25 ]. The HSV values for the concentration of ≥10 3 copies/mL are bigger than LOQ, so these concentrations (≥10 3 copies/mL) could be sensed in the device.…”

Integrated microfluidic platforms for heavy metal sensing: a comprehensive review

“…The LOD was determined to be 2.2 mg L −1 (2.2 ppb). 62 Table 4 provides an overview of optical-based micro-uidic devices for detecting heavy metals.…”

A 3D printing assisted microfluidic absorbance-based measurement system for biological assay

“…Due to the limitations inherent in electrochemical and mechanical detection strategies, optical detection is favored for robust and sensitive analytical systems. Traditional optical detection methods like absorbance [20], fluorescence [21], chemiluminescence [22], and surface plasmon resonance [23] have been employed for detection of biomolecules and other potent analytes. However, as many of these strategies require microscopes, lasers, spectrophotometers, and photomultiplier tubes (PMTs), the resulting systems tend to be bulky and challenging to miniaturize into portable, compact, and costeffective devices [24,25].…”