Rapid Sensing of Biological and Environmental Analytes Using Microwave-Accelerated Bioassays and a MATLAB Application

Autor: Enock Bonyi, Edward Constance, Zeenat Kukoyi, Sanjeeda Jafar, Kadir Aslan
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Nano Biomedicine and Engineering, Vol 11, Iss 2, Pp 111-123 (2019)
Druh dokumentu: article
ISSN: 2150-5578
DOI: 10.5101/nbe.v11i2.p111-123
Popis: We report a method for rapid detection and analysis of biological and environmental analytes by microwave-accelerated bioassays (MABs) and a novel MATLAB-based image processing of colorimetric signals. In this regard, colorimetric bioassays for histidine-rich protein 2 (HRP-2) and microcystin-leucine arginine (MC-LR) toxin were carried out using MABs and without microwave heating (i.e, gold standard bioassays). Our MATLAB-based detection method is based on the direct correlation of color intensity of a solution calculated from images captured with a smartphone with the concentration of the biomolecule of interest using a MATLAB code developed in-house. We demonstrated that our MATLAB-based detection method can yield bioassay sensitivity comparable to the colorimetric gold standard tool, i.e., UV-Visible spectroscopy. In addition, colorimetric bioassay time for the HRP-2 assay (used in malaria diagnosis) and colorimetric MC-LR bioassay (used in MC-LR toxin diagnosis) was reduced from up to 2 hours at room temperature without microwave heating to 15 minutes using the MABs technique.
Databáze: Directory of Open Access Journals