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Exploring signal amplification strategies to enhance the sensitivity of lateral flow immunoassay (LFIA) is of great significance for point‐of‐care (POC) testing of low‐concentrated targets in the field of in vitro diagnostics. Here, a highly‐sensitive LFIA platform using compact and hierarchical magneto–fluorescent assemblies as both target‐enrichment substrates and optical sensing labels is demonstrated...
Sulfide anions are generated not only from industrial processes but also in biosystems. Hence, robust fluorescent sensors for sulfide which are fast-responding, water soluble and biocompatible are highly desirable. Herein, we report the first betaine-based fluorescent sensor, which features excellent water solubility, low cytotoxicity and short response time. This sensor is based on the chelator/Cu(II)...
Sulfide anions are generated not only as a byproduct from industrial processes but also in biosystems. Hence, fluorescent probes for detecting sulfide anion which are water soluble, sensitive, selective and biocompatible are highly sought-after. In this study, we report a water-soluble, low-cytotoxic and sensitive fluorescent sensor for detecting sulfide anion. In this probe, the strong electron-withdrawing...
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