Abstract:
:A fluorescent sensor based on a tripeptide (SerGluGlu) with a dansyl fluorophore detected selectively Al(III) among 16 metal ions in aqueous buffered solutions without any organic cosolvent. The peptide-based sensor showed a highly sensitive turn on response to aluminium ion with high binding affinity (1.84×10(4)M(-1)) in aqueous buffered solutions. The detection limit (230nM, 5.98ppb) of the peptide-based sensor was much lower than the maximum allowable level (7.41μM) of aluminium ions in drinking water demanded by EPA. The binding mode of the peptide sensor with aluminium ions was characterized using ESI mass spectrometry, NMR titration, and pH titration experiments.
journal_name
Bioorg Med Chem Lettjournal_title
Bioorganic & medicinal chemistry lettersauthors
In B,Hwang GW,Lee KHdoi
10.1016/j.bmcl.2016.07.073subject
Has Abstractpub_date
2016-09-15 00:00:00pages
4477-4482issue
18eissn
0960-894Xissn
1464-3405pii
S0960-894X(16)30801-0journal_volume
26pub_type
杂志文章abstract::We have succeeded in the acquisition of DNA aptamers that recognize chitin using in vitro selection. The obtained DNA aptamers have the stem-loop or bulge loop structures with guanine rich loop clusters and the clockwise B-form stems. ...
journal_title:Bioorganic & medicinal chemistry letters
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journal_title:Bioorganic & medicinal chemistry letters
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journal_title:Bioorganic & medicinal chemistry letters
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