title: A simple ratiometric fluorescent sensor for fructose based on complexation of 10-hydroxybenzo[h]quinoline with boronic acid.
abstract: A simple ratiometric fluorescent sensor for fructose was presented. It consisted of 10-hydroxybenzo[h]quinoline (HBQ) which showed emission at 572nm and 3-pyridylboronic acid (PDBA) whose complex with HBQ gave emission at 500nm. The reaction of fructose with PDBA inhibited the complexation of HBQ with PDBA, resulting in the change of dual-emission intensity ratio. The sensor well quantified fructose in the range of 0.015-2.5mM with detection limit of 0.005mM. Besides, this sensor exhibited excellent selectivity and was successfully applied to fructose detection in food. This work provides a simple ratiometric sensing platform for sensitive and selective detection of fructose.
authors.affiliation: State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
authors.forename: Huihui
authors.initials: H
authors.lastname: Li
authors.affiliation: School of Chemistry and Environmental Engineering, Lanzhou City University, Lanzhou 730070, China.
authors.forename: Cailing
authors.initials: C
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
authors.forename: Xinyue
authors.initials: X
authors.lastname: Zhu
authors.affiliation: State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China. Electronic address: zhanghx@lzu.edu.cn.
authors.forename: Haixia
authors.initials: H
authors.lastname: Zhang
mesh_terms: D001897:Boronic Acids / Q000737:chemistry*; D005632:Fructose / Q000032:analysis*; D057230:Limit of Detection; D016014:Linear Models; D011804:Quinolines / Q000737:chemistry*; D013050:Spectrometry, Fluorescence / Q000379:methods*
chemical_list: C521323:10-hydroxybenzo(h)quinoline; D001897:Boronic Acids; D011804:Quinolines; D005632:Fructose
keywords: 10-Hydroxybenzo[h]quinoline; Boronic acid; Fructose; Ratiometric fluorescence