Digital image colorimetry on smartphone for chemical analysis: A review

Y Fan, J Li, Y Guo, L Xie, G Zhang - Measurement, 2021 - Elsevier
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 …

Recent developments in computer vision-based analytical chemistry: A tutorial review

LF Capitán-Vallvey, N Lopez-Ruiz… - Analytica Chimica …, 2015 - Elsevier
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 …

Point-of-care colorimetric detection with a smartphone

L Shen, JA Hagen, I Papautsky - Lab on a Chip, 2012 - pubs.rsc.org
Paper-based immunoassays are becoming powerful and low-cost diagnostic tools,
especially in resource-limited settings. Inexpensive methods for quantifying these assays …

Cellphone-based hand-held microplate reader for point-of-care testing of enzyme-linked immunosorbent assays

B Berg, B Cortazar, D Tseng, H Ozkan, S Feng, Q Wei… - ACS …, 2015 - ACS Publications
Standard microplate based enzyme-linked immunosorbent assays (ELISA) are widely
utilized for various nanomedicine, molecular sensing, and disease screening applications …

Colorimetric sensor arrays for the detection and identification of chemical weapons and explosives

MJ Kangas, RM Burks, J Atwater… - Critical reviews in …, 2017 - Taylor & Francis
There is a significant demand for devices that can rapidly detect chemical–biological–
explosive (CBE) threats on-site and allow for immediate responders to mitigate spread, risk …

Review of student-built spectroscopy instrumentation projects

ML Kovarik, JR Clapis… - Journal of Chemical …, 2020 - ACS Publications
One challenge of teaching chemical analysis is the proliferation of sophisticated, but often
impenetrable, instrumentation in the modern laboratory. Complex instruments, and the …

Optimization of a paper-based ELISA for a human performance biomarker

RC Murdock, L Shen, DK Griffin… - Analytical …, 2013 - ACS Publications
Monitoring aspects of human performance during various activities has recently become a
highly investigated research area. Many new commercial products are available now to …

Whey Protein Analysis Using the Lowry Assay and 96-Well-Plate Digital Images Acquired Using Smartphones

EJ Assink Junior, PC de Jesus… - Journal of Chemical …, 2023 - ACS Publications
Here, students determine the total protein content in whey protein samples using the Lowry
assay. Quantitative analysis was carried out using absorbance measured at 750 nm …

Novel Anthocyanin-Based Colorimetric Assay for the Rapid, Sensitive, and Quantitative Detection of Helicobacter pylori

C Celik, G Can Sezgin, UG Kocabas, S Gursoy… - Analytical …, 2021 - ACS Publications
Several different diagnostic tests have been reported for rapid, sensitive, and economical
detection of bacterial pathogens, but most lack widespread and practical use in the clinic. In …

Smartphone-based point-of-care urinalysis under variable illumination

M Ra, MS Muhammad, C Lim, S Han… - IEEE journal of …, 2017 - ieeexplore.ieee.org
Urine tests are performed by using an off-the-shelf reference sheet to compare the color of
test strips. However, the tabular representation is difficult to use and more prone to visual …