Ultrafast fluorescence probe to H2O2 vapor based on organic-inorganic hybrid silica nanoparticles.
Ultrafast fluorescence probe to H2O2 vapor based on organic-inorganic hybrid silica nanoparticles.
复制标题
DOI：
10.1016/j.talanta.2021.122914
复制
发表时间：
2021-10
期刊：
影响因子：
6.1
通讯作者：
Hongbin Mu;Yimeng Zhang;Ping Zheng;Ming Zhang
中科院分区：
文献类型：
--
作者：
Hongbin Mu;Yimeng Zhang;Ping Zheng;Ming Zhang
将一种负载1，8-萘二甲酰亚胺硼酸酯（NIB@SiO2）的有机-无机杂化SiO2纳米粒子用于检测痕量过氧化氢（H2 O2）。研究表明，纳米SiO2颗粒的加入可以提高传感膜的吸附性能和亲水性，加速传感材料与H2 O2的脱硼反应，进而缩短响应时间，这一直是该脱硼型荧光探针对H2 O2蒸气的挑战。NIB@SiO2薄膜的荧光在室温下被H2 O2饱和蒸气在5 s内强烈猝灭，检测限（LOD）为184 ppt。因此，本研究提供了一种超快、高灵敏度的H2 O2蒸气有机-无机杂化荧光探针，并为H2 O2荧光探针的设计提供了新的思路。
A kind of organic-inorganic hybrid silica nanoparticles loaded with 1,8-naphthalimide borate ester (NIB@SiO2) was used to detect trace hydrogen peroxide (H2O2) 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 H2O2,and then shorten the response time successively, which is always the disturbing challenge for this deboronation-type fluorescent probe to H2O2vapor. The fluorescence ofNIB@SiO2film was quenched greatly under H2O2saturated 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 H2O2vapor, moreover, a new design strategy for promising H2O2fluorescent probe is revealed.