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Optical Detection of Mercury(II) in Aqueous Solutions by Using Conjugated Polymers and Label‐Free Oligonucleotides
Author(s) -
Liu X.,
Tang Y.,
Wang L.,
Zhang J.,
Song S.,
Fan C.,
Wang S.
Publication year - 2007
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200602578
Subject(s) - mercury (programming language) , conjugated system , oligonucleotide , polymer , aqueous solution , materials science , thiophene , ion , combinatorial chemistry , organic chemistry , chemistry , computer science , biochemistry , dna , composite material , programming language
A conjugated‐polymer‐based “mix‐and‐detect” optical sensor for mercury ions is fabricated by using a water‐soluble poly[3‐(3′‐ N , N , N ‐triethylamino‐1′‐propyloxy)‐4‐methyl‐2,5‐thiophene hydrochloride] (PMNT) and a label‐free, mercury‐specific oligonucleotide (MSO) probe. PMNT binds to the Hg 2+ ‐free MSO and the Hg 2+ –MSO complex in different ways, and exhibits distinguishable and specific optical responses to the target‐induced conformation change.