title: A tryptophan responsive fluorescent and wettable dual-signal switch.
abstract: A new fluorescent dianthracene calix[4]arene (C4DA) was designed and synthesized via coupling the fluorescent anthracene units and calix[4]arene units. Then it was used to form self-assembled monolayers (C4DA-SAMs) by the simple click reaction to give the first fluorescent and wettable dual-signal switch for tryptophan (Trp) on a micro- and nano-structured silicon surface. The switch for Trp on the C4DA functional surface was confirmed by contact angle (CA) measurements and fluorescent spectroscopy (FL). Furthermore, the wettability-responsive C4DA functional interface can be re-used for six cycles. The responsive switch can potentially be applied in many fields including nanodevices and intelligent microfluidic switching.
authors.affiliation: Key Laboratory of Pesticide and Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China. lhbing@mail.ccnu.edu.cn.
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Zhang
authors.forename: Jing
authors.initials: J
authors.lastname: Li
authors.forename: Ningmei
authors.initials: N
authors.lastname: Feng
authors.forename: Li
authors.initials: L
authors.lastname: Luo
authors.forename: Zhen
authors.initials: Z
authors.lastname: Dai
authors.forename: Li
authors.initials: L
authors.lastname: Yang
authors.forename: Demei
authors.initials: D
authors.lastname: Tian
authors.forename: Haibing
authors.initials: H
authors.lastname: Li
mesh_terms: D000873:Anthracenes / Q000737:chemistry; D047250:Calixarenes / Q000737:chemistry; D002625:Chemistry, Organic / Q000379:methods; D005456:Fluorescent Dyes / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D044085:Microfluidics; D018625:Microscopy, Atomic Force; D008855:Microscopy, Electron, Scanning; D036103:Nanotechnology; D010316:Particle Size; D056951:Photoelectron Spectroscopy; D011485:Protein Binding; D012825:Silicon / Q000737:chemistry; D013050:Spectrometry, Fluorescence; D021241:Spectrometry, Mass, Electrospray Ionization; D013499:Surface Properties; D013696:Temperature; D014364:Tryptophan / Q000737:chemistry*; D014867:Water / Q000737:chemistry; D017155:Wettability
chemical_list: D000873:Anthracenes; D005456:Fluorescent Dyes; D014867:Water; D047250:Calixarenes; D014364:Tryptophan; D012825:Silicon