Paper-Based Immunoassay with Signal Amplification for Sensitive Detection of Nucleocapsid Protein Toward the Diagnosis of Long COVID

Key Points

• The aim is to develop a sensitive paper-based immunoassay for detecting the nucleocapsid protein associated with long COVID.
• Developed paper-based immunoassay technique
• Incorporated signal amplification methods
• Tested sensitivity using samples from individuals with long COVID
• Achieved high sensitivity in detecting nucleocapsid protein
• Successfully identified positive cases of long COVID
• Demonstrated potential for rapid and cost-effective diagnostics