Journal Article10.1016/J.TET.2011.09.003
Colorimetric metal ion sensors
Navneet Kaur,Subodh Kumar +1 more
229
TL;DR: In this paper, colorimetric sensors allow on site, real-time qualitative and semi-quantitative detection without complicated analytical instruments, including metal induced absorptions shifts, and various aspects, such as different color changes, metal induced absorption shifts, are reviewed.
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About: This article is published in Tetrahedron. The article was published on 02 Dec 2011.
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References
Colorimetric Hg2+ detection with a label-free and fully DNA-structured sensor assembly incorporating G-quadruplex halves.
TL;DR: A sensitive and fully DNA-structured ion sensor was built by integrating polyT sequences for highly selective Hg2+ recognitions and two flanking G-quadruplex halves for allosteric signal transductions and may be further extended to other sensors through a rational structural fusion between re-engineered aptameric and enzymic DNA sequences.
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A Selective Redox and Chromogenic Probe for Hg(II) in Aqueous Environment Based on a Ferrocene−Azaquinoxaline Dyad
TL;DR: The combined (1)H NMR data of the complexes and the theoretical calculation suggest the proposed bridging coordination modes of ferrocene/ferrocene-azaquinoxaline dyad and Hg(2+) in an aqueous environment as well as Pb(2+) and Zn(2%) metal cations in CH(3)CN solution through three different channels.
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ICT-based Cu(II)-sensing 9,10-anthraquinonecalix[4]crown
Hyun Jung Kim,Sang Hoon Kim,Ja Hyung Kim,Le Ngoc Anh,Joung Hae Lee,Chang-Hee Lee,Jong Seung Kim +6 more
TL;DR: A series of calix[4]arene-based chromogenic sensors bearing the 9,10-anthraquinone moiety have been synthesized and examined for their abilities to recognize various cations such as Li+, Na+, K+, Rb+, Cs+, Ag+, Cd2+, Mg2+, Ca2+, Sr2+, Ba2+, Zn2+, Hg2+) Pb2+, Co2+, and Cu2+ by UV-vis spectroscopy as discussed by the authors.
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Functional surface modification of natural cellulose substances for colorimetric detection and adsorption of Hg2+ in aqueous media
Xuehai Zhang,Jianguo Huang +1 more
TL;DR: Immobilization of ruthenium dye or mercaptosilane monolayer onto metal oxide ultrathin film pre-coated cellulose nanofibres of natural cellulose substances yielded colorimetric sensing materials with high sensitivity and selectivity as well as good reversibility and trapping materials withhigh efficiency for detection and adsorption of Hg(2+) ions in aqueous media.
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Colorimetric detection of Cu[II] cation and acetate, benzoate, and cyanide anions by cooperative receptor binding in new alpha,alpha '-bis-substituted donor-acceptor ferrocene sensors
TL;DR: New ferrocene derivatives bearing two donor-acceptor systems are capable of selectively sensing cations and anions by cooperative binding of the two alpha,alpha'-groups bonded to the ferrocenes nucleus, thus permitting the naked-eye selective colorimetric detection of copper[II] cation and acetate, benzoate, or cyanide anions.
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