title: A Cu²⁺-selective fluorescent chemosensor based on BODIPY with two pyridine ligands and logic gate.
abstract: A novel near-infrared fluorescent chemosensor based on BODIPY (Py-1) has been synthesized and characterized. Py-1 displays high selectivity and sensitivity for sensing Cu(2+) over other metal ions in acetonitrile. Upon addition of Cu(2+) ions, the maximum absorption band of Py-1 in CH3CN displays a red shift from 603 to 608 nm, which results in a visual color change from pink to blue. When Py-1 is excited at 600 nm in the presence of Cu(2+), the fluorescent emission intensity of Py-1 at 617 nm is quenched over 86%. Notably, the complex of Py-1-Cu(2+) can be restored with the introduction of EDTA or S(2-). Consequently, an IMPLICATION logic gate at molecular level operating in fluorescence mode with Cu(2+) and S(2-) as chemical inputs can be constructed. Finally, based on the reversible and reproducible system, a nanoscale sequential memory unit displaying "Writing-Reading-Erasing-Reading" functions can be integrated.
authors.affiliation: College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, PR China.
authors.forename: Liuqian
authors.initials: L
authors.lastname: Huang
authors.affiliation: College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, PR China.
authors.forename: Jing
authors.initials: J
authors.lastname: Zhang
authors.affiliation: College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, PR China.
authors.forename: Xiaoxiu
authors.initials: X
authors.lastname: Yu
authors.affiliation: College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, PR China.
authors.forename: Yifan
authors.initials: Y
authors.lastname: Ma
authors.affiliation: College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, PR China.
authors.forename: Tianjiao
authors.initials: T
authors.lastname: Huang
authors.affiliation: College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, PR China.
authors.forename: Xi
authors.initials: X
authors.lastname: Shen
authors.affiliation: College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, PR China.
authors.forename: Huayu
authors.initials: H
authors.lastname: Qiu
authors.affiliation: College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, PR China.
authors.forename: Xingxing
authors.initials: X
authors.lastname: He
authors.affiliation: College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, PR China. Electronic address: yinsc@hznu.edu.cn.
authors.forename: Shouchun
authors.initials: S
authors.lastname: Yin
mesh_terms: D001896:Boron Compounds / Q000737:chemistry*; D003300:Copper / Q000032:analysis*; D008024:Ligands; D008128:Logic; D055095:Optics and Photonics / Q000295:instrumentation*; D066244:Proton Magnetic Resonance Spectroscopy; D011725:Pyridines / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet
chemical_list: C095489:4,4-difluoro-4-bora-3a,4a-diaza-s-indacene; D001896:Boron Compounds; D008024:Ligands; D011725:Pyridines; D003300:Copper; C023666:pyridine
keywords: BODIPY; Colorimetric sensors; Copper ions; Fluorescent sensors; Molecular logic gates; Spectroscopic properties