Discrimination and isolation of the virus from free RNA fragments for the highly sensitive measurement of SARS-CoV-2 abundance on surfaces using a graphene oxide nano surface

Nano Convergence

Table 1 Differences in RT-qPCR results (cycle threshold value) using two different sample preparation methods (the new protocol developed in the current study and standard commercial protocol) for test surfaces on which SARS-CoV-2 had been spread

Sites	Disinfection methods	This study			Commercial protocol
Sites	Disinfection methods	Cycle threshold value (before disinfection)	Cycle threshold value (after disinfection)	∆Cycle threshold value	Cycle threshold value (before disinfection)	Cycle thresholdvalue (after disinfection)	∆Cycle threshold value
Bed	Spray	40.00	40.00	0.00	36.61	36.57	− 0.04
Room wal	Spray	37.70	40.00	2.30	36.26	36.32	0.06
Inner lavatory	Spray-mopping	33.50	40.00	6.50	34.91	38.55	3.64