tetano
Editor, Senior Moderator
Talanta
. 2024 Mar 26:274:125986.
doi: 10.1016/j.talanta.2024.125986. Online ahead of print. Rapid detection of SARS-CoV-2 spike protein using a magnetic-assisted electrochemical biosensor based on functionalized CoFe[SUB]2[/SUB]O[SUB]4[/SUB] magnetic nanomaterials
Bing Zhao[SUP] 1 [/SUP], Chan-Ru Xiong[SUP] 2 [/SUP], Yao Liu[SUP] 3 [/SUP], Qing-Cai Yu[SUP] 2 [/SUP], Xing Chen[SUP] 4 [/SUP]
Affiliations
The outbreak of novel coronavirus pneumonia (COVID-19) in 2019 has garnered widespread attention. The virus exhibits high contagiousness, and in certain cases, it can lead to recurrent infections. Therefore, it is imperative to develop portable, sensitive, and accurate sensors to promptly detect infected individuals, control the virus's transmission, and determine suitable treatment strategies. In this study, we proposed a magnetically-assisted method employing CFO@CS-Au MNP as the substrate material, which was functionalized with human angiotensin-converting enzyme (ACE2) for efficient capture of SARS-CoV-2 spike protein in solution. Subsequently, the captured protein was sensitively detected through differential pulse voltammetry (DPV) electrical analysis. The linear detection range of the labeled GCE/MNP/GA/ACE2/BSA electrochemical sensor is from 1 pg/mL to 10 μg/mL, with a minimum detection limit of 0.15 pg/mL. Furthermore, the fabricated GCE/MNP/GA/ACE2/BSA sensor achieved satisfactory recoveries of SARS-CoV-2 spike protein in saliva and nasal swab samples within 10 min. These results indicate that this magnetically-assisted biosensor has established a solid foundation for the swift on-site detection of COVID-19.
Keywords: ACE2; CFO@CS-Au; DPV; Electrochemical biosensor; Magnetic assist; SARS-CoV-2 S protein.
. 2024 Mar 26:274:125986.
doi: 10.1016/j.talanta.2024.125986. Online ahead of print. Rapid detection of SARS-CoV-2 spike protein using a magnetic-assisted electrochemical biosensor based on functionalized CoFe[SUB]2[/SUB]O[SUB]4[/SUB] magnetic nanomaterials
Bing Zhao[SUP] 1 [/SUP], Chan-Ru Xiong[SUP] 2 [/SUP], Yao Liu[SUP] 3 [/SUP], Qing-Cai Yu[SUP] 2 [/SUP], Xing Chen[SUP] 4 [/SUP]
Affiliations
- PMID: 38537348
- DOI: 10.1016/j.talanta.2024.125986
The outbreak of novel coronavirus pneumonia (COVID-19) in 2019 has garnered widespread attention. The virus exhibits high contagiousness, and in certain cases, it can lead to recurrent infections. Therefore, it is imperative to develop portable, sensitive, and accurate sensors to promptly detect infected individuals, control the virus's transmission, and determine suitable treatment strategies. In this study, we proposed a magnetically-assisted method employing CFO@CS-Au MNP as the substrate material, which was functionalized with human angiotensin-converting enzyme (ACE2) for efficient capture of SARS-CoV-2 spike protein in solution. Subsequently, the captured protein was sensitively detected through differential pulse voltammetry (DPV) electrical analysis. The linear detection range of the labeled GCE/MNP/GA/ACE2/BSA electrochemical sensor is from 1 pg/mL to 10 μg/mL, with a minimum detection limit of 0.15 pg/mL. Furthermore, the fabricated GCE/MNP/GA/ACE2/BSA sensor achieved satisfactory recoveries of SARS-CoV-2 spike protein in saliva and nasal swab samples within 10 min. These results indicate that this magnetically-assisted biosensor has established a solid foundation for the swift on-site detection of COVID-19.
Keywords: ACE2; CFO@CS-Au; DPV; Electrochemical biosensor; Magnetic assist; SARS-CoV-2 S protein.