Publications by authors named "Zhengxuan Gu"

Article Synopsis
  • Enzymes are typically used in biosensing for signal amplification, but their performance can vary with changes in the environment, like pH and temperature.
  • The new approach, called activity-independent enzyme-powered (AIEP) amplification, aims to stabilize and improve signal quality without relying on enzyme activity during the biosensing process.
  • The method was tested by monitoring oxidative stress in drug-induced liver injury, showing that it effectively evaluates hepatoprotective effects using a specific fluorophore and a degradation-triggered nanobeacon.
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Fertilization and early embryonic development as the beginning of a new life are key biological events. Hydrogen polysulfide (H S ) plays important roles during physiological regulation, such as antioxidation-protection. However, no report has studied in situ H S fluctuation during early embryonic development because of the low abundance of H S and inadequate sensitivity of probes.

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For sensing low abundance of biomarkers, utilizing nanocarriers to load dyes is an efficient method to amplify the detected signal. However, the non-specific leak of the internal dyes in this approach is accompanied by false positive signals, resulting in inaccurate signal acquirement. To address this issue, in this work, we reported a novel signal amplification strategy with dye as a scaffold to construct a self-immolative dye-doped polymeric probe (SDPP).

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