A novel enzyme-free long-lasting chemiluminescence system based on a luminol functionalized β-cyclodextrin hydrogel for sensitive detection of H₂O₂ in urine and cells

Abstract

A novel long-lasting chemiluminescence (CL) hydrogel (β-CD@luminol-Co2+) was synthesized by embedding luminol and cobalt ion (Co2+) into β-cyclodextrin (β-CD) through non-covalent interactions. Due to the porous structure and viscosity of...

Long‐lasting chemiluminescence by aggregation‐induced emission surfactant with ultralow critical micelle concentration

“…As is known, luminol could emit the strong CL under alkaline environment. [ 55 ] To understand whether the surface adsorption hydroxyl anions affect the CL reaction, the CL signals of luminol‐Co 2+ ‐H 2 O 2 ‐C 8 ‐TPE‐C 4 TAB system without and with the introduction of NaBr or NaCl were investigated. As shown in Figure S11, the CL intensity decreased upon adding 1.0 mM Br − or Cl − .…”

Facile Chemical Vapor Deposition of Fe–N–C Materials for pH-Universal Hydrogen Peroxide Detection

“…3 Thereof, it is imperative to precisely determine the H 2 O 2 concentrations, especially in the fields of food safety and healthcare. 4 To date, various H 2 O 2 determination approaches have been developed, including titrimetry, 5 spectrophotometry, 6,7 chemiluminescence, 8,9 electrochemistry 10,11 and chromatography. 12,13 Among them, electrochemical technique owns plenty of merits such as ease of operation, high selectivity, low cost, and rapid response.…”