1. Responsive lanthanide coordination polymer for hydrogen sulfide
- Author
-
Baoxia Liu and Yang Chen
- Subjects
chemistry.chemical_classification ,Lanthanide ,Aqueous solution ,Silver ,Coordination polymer ,Polymers ,Biomolecule ,Inorganic chemistry ,chemistry.chemical_element ,Terbium ,Polymer ,equipment and supplies ,Fluorescence ,Lanthanoid Series Elements ,Analytical Chemistry ,chemistry.chemical_compound ,Spectrometry, Fluorescence ,chemistry ,Humans ,Hydrogen Sulfide ,Selectivity - Abstract
Metal organic coordination polymers have received great attention because of their flexible compositions and architecture. Here, we report the design and synthesis of a responsive lanthanide coordination polymer (LCP) for hydrogen sulfide (H2S), utilizing self-assembling of biomolecule nucleotide with luminescent terbium ion (Tb(3+)) and sensitizing silver ion (Ag(+)) in aqueous solution. LCP is highly fluorescent due to the inclusion of Ag(+) ions, which sensitized the fluorescence of Tb(3+) ions. H2S can strongly quench the fluorescence of LCP through its high affinity for Ag(+) ions. Such configurated LCP material from initial building blocks showed high sensitivity and selectivity for H2S and was applied to the determination of H2S in human serum. LCP with Tb(3+) ions also has a long fluorescence lifetime, which allows for time-resolved fluorescence assays, possessing particular advantages to probing H2S in biological systems with autofluorescence.
- Published
- 2013