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DOI码：10.1016/j.snb.2025.137399

发表刊物：Sensors and Actuators B: Chemical

摘要：The development of efficient chemiluminescence (CL)-functionalized nanomaterials that use dissolved oxygen as a coreactant for analytical sensing remains a significant challenge. In this study, we present the synthesis of novel acridinium sulfonamide (AS)-functionalized MnFe2O4 nanoparticles, denoted as MnFe2O4/PEI/AS/PSS NPs, utilizing polyethyleneimine (PEI) as a bridge and poly(sodium 4-styrenesulfonate) (PSS) as a stabilizer. These MnFe2O4/PEI/AS/PSS NPs exhibited strong CL emission with the dissolved oxygen as a coreactant in the presence of hexadecyltrimethylammonium hydroxide (CTAOH). This enhanced CL performance was attributed to several factors: the large specific surface area and abundant amino groups on the MnFe2O4/PEI NPs, which enabled high AS loading efficiency; the catalytic activity of surface-bound Mn2 + and Fe2+ ions in generating reactive oxygen species from dissolved oxygen; and the positively charged micelles formed by CTAOH, which enriched superoxide anions. Additionally, PSS protects the excited state of N-(3-sulfonate-propane)acridone from environmental quenching, extending its lifetime and enhancing CL emission. Moreover, the MnFe2O4/PEI/AS/PSS NPs also demonstrated exceptional magnetic performance and stability. Based on this, a sensitive CL method for ascorbic acid (AA) detection was developed using MnFe2O4/PEI/AS/PSS NPs as a detection platform, without the requirement for recognition elements. The detection range was 0.08–200 µM with a low detection limit of 0.0714 µM. This method is rapid, simple, environmentally friendly, and stable, as it eliminates the need for an incubation process and additional coreactants. The CL method was effectively employed for the detection of AA in human serum samples, highlighting its potential for clinical diagnosis applications.

第一作者：胡超

合写作者：聂威,王依莎

论文类型：期刊论文

通讯作者：舒江南,崔华

学科门类：理学

文献类型：J

卷号：431

页面范围：137399

是否译文：否

发表时间：2025-05-15

收录刊物：SCI

发布期刊链接：https://www.sciencedirect.com/science/article/pii/S0925400525001741