Pancreatic ductal adenocarcinoma (PDAC) poses significant diagnostic challenges due to its asymptomatic nature in its early stages, low specificity of conventional in vitro assays, and limited efficacy of surgical interventions. However, clinical specificity of the current serum biomarkers is suboptimal, leading to diagnostic inaccuracies and oversights. Therefore, this study introduced a novel dual-target electrochemiluminescence (ECL) biosensor to address these critical issues.
View Article and Find Full Text PDFCancer surgery remains a mainstay in clinical treatment. However, the efficacy of subsequent therapies largely depends on the precise evaluation of postoperative prognoses, underscoring the critical need for a comprehensive and accurate assessment of surgical outcomes. Nanoprobes targeting tumors offer a promising solution for visual prognostic assessment.
View Article and Find Full Text PDFMatrix metalloproteinase 2 (MMP-2) is a crucial biomarker of tumor growth, invasion and metastasis. In the present study, a core-satellite magnetic-fluorescent-plasmonic nanosensor (FMNS@Au) was constructed through biological self-assembly to generate localized SERS "hot spots" and an efficient FRET system for the sensitive determination of MMP-2 activity in a SERS-fluorescence dual-mode assay. In this hybrid nanosensor, a biotin-labeled peptide containing a specific MMP-2 substrate (PLGVR) was employed as a bridge for the assembly of gold nanoparticles (AuNPs) and avidin functionalized fluorescent-magnetic nanospheres (FMNS).
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