Nanosensors-Assisted Quantitative Analysis of Biochemical Processes in Droplets.

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ID: 89100
2020
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Abstract
Here, we present a miniaturized lab-on-a-chip detecting system for an all-electric and label-free analysis of the emulsion droplets incorporating the nanoscopic silicon nanowires-based field-effect transistors (FETs). We specifically focus on the analysis of β-galactosidase activity, which is an important enzyme of the glycolysis metabolic pathway. Furthermore, the efficiency of the synthesis and action of β-galactosidase can be one of the markers for several diseases, ., cancer, hyper/hypoglycemia, cell senescence, or other disruptions in cell functioning. We measure the reaction and reaction kinetics-associated shift of the source-to-drain current in the system, which is caused by the change of the ionic strength of the microenvironment. With these results, we demonstrate that the ion-sensitive FETs are able to sense the interior of the aqueous reactors; thus, the conjunction of miniature nanosensors and droplet-based microfluidic systems conceptually opens a new route toward a sensitive, optics-less analysis of biochemical processes.
Reference Key
belyaev2020nanosensorsassistedmicromachines Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Belyaev, Dmitry;Schütt, Julian;Ibarlucea, Bergoi;Rim, Taiuk;Baraban, Larysa;Cuniberti, Gianaurelio;
Journal micromachines
Year 2020
DOI
E138
URL
Keywords
lab-on-a-chip point-of-care diagnostics enzymatic reaction droplet-based microfluidics nanosensor silicon nanowire-based field-effect transistor β-galactosidase assay

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