Quantitative detection of H2O2 with a composite fluorescent probe of 8-quinoline boronic acid-Al(III)

A highly effective “naked eye” colorimetric and fluorimetric curcumin-based fluorescent sensor for specific and sensitive detection of H2O2in vivo and in vitro

“…The linear regression equation was: y = 829.10482 − 3.08365 x ( R 2 = 0.99001). According to the literature, the formula for the limit of detection was: LOD = 3 σ / κ , and the detection limit was calculated to be 1.31 μM, 11 which was comparable to that of a previously reported sensor. Based on the UV-vis absorption and fluorescence spectroscopy, the DFCB sensor had high sensitivity and a low detection limit for H 2 O 2 .…”

“…1–4 However, abnormal H 2 O 2 generation will cause irreversible damage to the organism, and may attack cellular biomolecules such as protein and DNA, 5–10 affect cell metabolism and proliferation, and cause cancer, abnormal amino acid modification, Alzheimer's disease and other diseases. 11–13 Due to the complex pathologies that arise in organisms, H 2 O 2 can cause oxidative stress and eventually lead to cell damage and necrosis. 14–16 Therefore, to develop efficient methods for detecting H 2 O 2 is of great importance in disease prevention and medical diagnosis.…”

Synergism of Holmium Orthovanadate/Phosphorus-Doped Carbon Nitride Nanocomposite: Nonenzymatic Electrochemical Detection of Hydrogen Peroxide

“…Various analytical approaches are developed in detecting H 2 O 2 , which include surface-enhanced Raman spectroscopy, electrochemical detection, molecularly imprinted sensors, enzyme-linked immunoassay, photoluminescence, photoelectrochemical sensors, colorimetric detection, mass spectrometry, high-performance liquid chromatography, and colorimetric detection. − Among these, electrochemical detection has drawn tremendous attention due to its fast response, high sensitivity, portability, high reliability, better accuracy, miniaturization, low cost, and user-friendly approach. − Electrode materials are vital in electrochemical analysis to achieve an enhanced and high electrochemical performance. Kaplan et al fabricated a nonenzymatic electrochemical sensor based on nickel–iron oxide@sulfur-doped reduced graphene oxide modified glassy carbon electrodes (GCEs) to detect H 2 O 2 .…”

Synthesis of an Antipyrine-Based Fluorescent Probe with Synergistic Effects for the Selective Recognition of Zinc Ion

“…Up to now, a myriad of assays, including traditional titrimetry [5], atomic absorption spectroscopy (AAS) [6], ultraviolet-visible spectrophotometry (UVvis) [7], inductively coupled plasma (ICP) [8], ion selective electrode (ISE) [9], biosensors [10], and fluorescence analysis (FA) have been developed for metal ion detection. Among them, fluorescent probes have attracted considerable attention due to their exceptional sensitivity, rapid response rate, uncomplicated equipment requirements, and userfriendly operation, enabling them to facilitate "naked eye" detection [11][12][13][14][15]. Additionally, by meticulously modifying the probe molecules chemically, one can achieve targeted and specific recognition of the desired analytes.…”