An efficient chemiluminescent probe based on Ni-doped CsPbBr₃ perovskite nanocrystals embedded in mesoporous SiO₂ for sensitive assay of L-cysteine.

ABSTRACT: This study presents an efficient chemiluminescence (CL) probe based on perovskite nanocrystals (NCs) for detection of L-cysteine (L-Cys). It consists of nickel-doped CsPbBr₃ NCs embedded in the mesoporous SiO₂ matrix as CL reagent and cerium (IV) as an oxidant in aqueous environment. The probe was designed for the highly selective determination of L-Cys based on its remarkable enhancing effect on the CL intensity. The colloidal nanocomposite of nickel-doped CsPbBr₃ NCs@SiO₂ with photoluminescence quantum yield of 58% was fabricated by ligand-assisted re-precipitation method and characterized by using UV-Vis absorption, FT-IR, X-ray diffraction, and transmission electron microscopy. The sensor was utilized to determine L-Cys in the linear concentr

SUBMITTER: Salari R 

PROVIDER: S-EPMC11379696 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature