Journal: Biosensors
Article Title: Development of a High-Accuracy, Low-Cost, and Portable Fluorometer with Smartphone Application for the Detection of Urinary Albumin towards the Early Screening of Chronic Kidney and Renal Diseases
doi: 10.3390/bios13090876
Figure Lengend Snippet: Schematic of the complete device used in this study is presented. The device comprises a fluorometer with an integrated graphene oxide (GO)–aptamer biosensor and a custom smartphone application. ( a ) The fluorometer is combined with the smartphone application. ( b ) An illustration of the GO–aptamer assay principle demonstrates that the fluorescence signal is absent when fluorescence-labeled aptamers bind to GO, resulting in fluorescence quenching. In the presence of the target molecules, the aptamers bind to them, dissociating from GO and leading to the recovery of the fluorescence signal.
Article Snippet: These results were then compared with those obtained using a commercial fluorometer (Quantus TM , Promega).
Techniques: Fluorescence, Labeling