State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, PR China.
State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, PR China.
Talanta. 2022 Jan 15;237:122914. doi: 10.1016/j.talanta.2021.122914. Epub 2021 Oct 2.
A kind of organic-inorganic hybrid silica nanoparticles loaded with 1,8-naphthalimide borate ester (NIB@SiO) was used to detect trace hydrogen peroxide (HO) vapor via turn-off mechanism. The detailed studies showed that utilizing silica nanoparticles can improve the adsorption properties and hydrophilicity of the sensing film, accelerate the deboronation reaction between the sensing material and HO and then shorten the response time successively, which is always the disturbing challenge for this deboronation-type fluorescent probe to HO vapor. The fluorescence of NIB@SiO film was quenched greatly under HO saturated vapor within 5 s at room temperature and limit of detection (LOD) was estimated to be 184 ppt, which are among the best reported results. Thus, this study provides an ultrafast and highly sensitive organic-inorganic hybrid fluorescent probe to HO vapor, moreover, a new design strategy for promising HO fluorescent probe is revealed.
一种负载 1,8-萘二甲酰亚硼酸酯的有机-无机杂化硅纳米粒子（NIB@SiO）被用于通过关闭机制来检测痕量过氧化氢（HO）蒸气。详细研究表明，利用硅纳米粒子可以改善传感膜的吸附性能和亲水性，加速传感材料与 HO 之间的去硼反应，从而依次缩短响应时间，这对于这种去硼型荧光探针检测 HO 蒸气来说一直是一个干扰性的挑战。室温下，NIB@SiO 薄膜在 HO 饱和蒸气中 5 s 内荧光猝灭程度很大，检测限（LOD）估计为 184 ppt，这是报道的最佳结果之一。因此，本研究为 HO 蒸气提供了一种超快速和高灵敏度的有机-无机杂化荧光探针，此外，还揭示了一种有前途的 HO 荧光探针的新设计策略。
