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The surface functionalization will introduce additional functional groups on carbon dots (CDs) surface and then enrich the properties of CDs. Here, we show the various surface functionalized CDs (-COOH, -OH, -SH, -NH2, etc, named as NS-CDs) were synthesized with fascinating features, including high quantum efficiency (38.9%), long-term stability and good biocompatibility. Notably, it can serve as...
A novel mitochondria-targeted ratiometric near-infrared fluorescence probe NDMBT for Sulfur dioxide (SO2) derivatives was constructed based on the SO2 derivatives-triggered Michael addition reaction. It displayed ultrafast response time (within 10s), large hypsochromic shift (260nm), high photostability, excellent selectivity and high sensitivity in aqueous media with a detection limit of 43nM. More...
In this paper, a sensitive and simple detecting system was developed for quantitative analysis of both hydroquinone (H 2 Q) and hydrogen peroxide (H 2 O 2 ), based on the successful combination of horse radish peroxidase (HRP) and water-soluble conjugate fluorescence polymers PPESO 3 . In the presence of HRP and H 2 O 2 , H 2 Q could be oxidized...
Melamine that can cause serious damage to the organs of animal or human beings was found to bind to polythymine via hydrogen bonding. With this novel discovery, colorimetric detection of melamine based on label-free and labeled gold nanoparticles was developed, respectively. Both of the methods revealed good selectivity for melamine over other components that may exist in milk and good anti-influence...
In this paper, we utilized the instinct peroxidase-like property of Fe 3 O 4 magnetic nanoparticles (MNPs) to establish a new fluorometric method for determination of hydrogen peroxide and glucose. In the presence of Fe 3 O 4 MNPs as peroxidase mimetic catalyst, H 2 O 2 was decomposed into radical that could quench the fluorescence of CdTe QDs more efficiently...
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