2 documents found, page 1 of 1
Development of colorimetric cellulose-based test-strip for the rapid detection ...
Correia, Bárbara P.; Sousa, Mariana P.; Sousa, Cristina E. A.; Mateus, Daniela; Sebastião, Ana Isabel; Cruz, Maria Teresa; Matos, Ana MiguelGiven the pandemic situation, there is an urgent need for an accurate test to monitor antibodies anti-SARS-CoV-2, providing crucial epidemiological and clinical information to monitor the evolution of coronavirus disease in 2019 (COVID-19) and to stratify the immunized and asymptomatic population. Therefore, this paper describes a new cellulosebased test strip for rapid and cost-efective quantitative detection ...
New Quantum-Dot-Based Fluorescent Immunosensor for Cancer Biomarker Detection
Sousa, Mariana P.; Piloto, Ana Margarida L.; Pereira, Ana Cláudia; Schmitt, Fernando; Fernandes, Ruben; Moreira, Felismina T. C.Cancer antigen 15-3 (CA 15-3) is a biomarker for breast cancer used to monitor response to treatments and disease recurrence. The present work demonstrates the preparation and application of a fluorescent biosensor for ultrasensitive detection of the cancer antigen CA 15-3 protein tumor marker using mercaptopropionic-acid-functionalized cadmium telluride (CdTe@MPA) quantum dots (QDs) conjugated with CA 15-3 ant...