Figure 4
From: Diagnostic performance of respirators for collection and detection of SARS-CoV-2
(a) Schematic of RCA-flow with microfluidics; (b) detailed photograph of a test tube coupled with a nylon mesh to the virus detection unit of the microfluidic chip; (c) and (d) are high-magnification SEM photographs of the nylon mesh having microscale pores; (e) schematics of RCA on nylon mesh surface; (f) photo of a hydrogel formed through RCA reaction with RNA obtained from a clinical mask sample; (g) negative control for the SAR-CoV-2 pathogen using a microfluidic chip; (h) positive control for SAR-CoV-2 confirmed patients using microfluidic chip.
