A dual "Turn-on/Turn-off" "FRET" sensor for highly sensitive and selective detection of lead and methylene blue based on fluorescent dansyl tagged copolymer and small molecule diketopyrrolopyrrole

被引:14
作者
Chini, Mrinmoy Kumar [1 ]
Kumar, Vishal [1 ]
Maiti, Binoy [2 ]
De, Priyadarsi [2 ]
Satapathi, Soumitra [1 ]
机构
[1] Indian Inst Technol Roorkee, Dept Phys, Roorkee 247667, Uttarakhand, India
[2] Indian Inst Sci Educ & Res Kolkata, Dept Chem Sci, Polymer Res Ctr, Mohanpur 741246, India
关键词
Dansyl tagged copolymer; Diketopyrrolopyrrole; Methylene Blue; Stern-Volmer constant; PHOTOINDUCED ELECTRON-TRANSFER; RESONANCE ENERGY-TRANSFER; HEAVY-METAL IONS; AQUEOUS-SOLUTION; PHOTOCATALYTIC DEGRADATION; WATER; REMOVAL; SYSTEM; PROBE; ZN2+;
D O I
10.1016/j.polymertesting.2019.105997
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Here we report, a multimodal sensing platform for sensitive and selective detection of heavy metal Lead (Pb+2) and organic dye (Methylene Blue) employing a novel FRET pair between a fluorescent polymer and a small molecule. The FRET pair consists of the highly fluorescent dansyl tagged copolymer P(MMA-co-Dansyl-Ala-HEMA) (DCP) and small molecule diketopyrrolopyrrole (DPP). The overlap integral of the FRET pair is calculated to be 1.14 x 10(16) nm(4)/(M*cm) and energy transfer efficiency is determined to be 25%. The fluorescence intensity of the studied FRET pair has been found to be quenched ("Turn Off") and enhanced ("Turn On") in the presence of methylene blue (MB) and lead (Pb+2) respectively. The FRET pair shows a strong affinity for Pb+2 ions with very low detection limit (LOD) (27.8 ppm). High K-SV (3.9 x 10(4) M-1) for MB sensing with LOD value 295 ppb indicates enhanced photo-induced electron transfer from FRET pair to MB. The metal-induced modulation of the self-assembled polymer-small molecule-Pb complex in the solution lead to the photoluminescence enhancement in the presence of Pb+2 and the dynamic quenching is established as the fluorescence Turn-off mechanism in the presence of MB dye. Our multimodal FRET sensing probe offer a common platform for the selective detection of a broad range of toxic pollutants which opens up its possibility of use in field applications.
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页数:6
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共 52 条
  • [1] Enhancing Photoinduced Electron Transfer Efficiency of Fluorescent pH-Probes with Halogenated Phenols
    Aigner, Daniel
    Freunberger, Stefan A.
    Wilkening, Martin
    Saf, Robert
    Borisov, Sergey M.
    Klimant, Ingo
    [J]. ANALYTICAL CHEMISTRY, 2014, 86 (18) : 9293 - 9300
  • [2] Alli Lukman Adewale, 2015, Interdiscip Toxicol, V8, P146, DOI 10.1515/intox-2015-0022
  • [3] [Anonymous], INFECT DIS REP, DOI DOI 10.3389/FEART.2014.00008
  • [4] Medium Dependent Dual Turn-On/Turn-Off Fluorescence System for Heavy Metal Ions Sensing
    Aragay, Gemma
    Alarcon, Georgina
    Pons, Josefina
    Font-Bardia, Merce
    Merkoci, Arben
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (02) : 1987 - 1994
  • [5] Electrochemical sensors
    Bakker, E
    Telting-Diaz, M
    [J]. ANALYTICAL CHEMISTRY, 2002, 74 (12) : 2781 - 2800
  • [6] Diketopyrrolopyrrole-based novel ratiometric fluorescent chemodosimeter for Hg2+ detection in aqueous solution and in living cells
    Bi, Shiming
    Zhang, Guanjun
    Wu, Yue
    Wu, Shengying
    Wang, Limin
    [J]. DYES AND PIGMENTS, 2016, 134 : 586 - 592
  • [7] Fluorescent Nanosensors Based on Fluorescence Resonance Energy Transfer (FRET)
    Chen, Gengwen
    Song, Fengling
    Xiong, Xiaoqing
    Peng, Xiaojun
    [J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2013, 52 (33) : 11228 - 11245
  • [8] Effect of heterocycles on field-effect transistor performances of donor-acceptor-donor type small molecules
    Chini, Mrinmoy Kumar
    Mahale, Rajashree Y.
    Chatterjee, Shyambo
    [J]. CHEMICAL PHYSICS LETTERS, 2016, 661 : 107 - 113
  • [9] Fluorescence resonance energy transfer between quantum dot donors and dye-labeled protein acceptors
    Clapp, AR
    Medintz, IL
    Mauro, JM
    Fisher, BR
    Bawendi, MG
    Mattoussi, H
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (01) : 301 - 310
  • [10] Enhanced metal ion selectivity of 2,9-di-(pyrid-2-yl)-1,10-phenanthroline and its use as a fluorescent sensor for cadmium(II)
    Cockrell, Gregory M.
    Zhang, Gang
    VanDerveer, Donald G.
    Thummel, Randolph P.
    Hancock, Robert D.
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (04) : 1420 - 1430