Journal
LANGMUIR
Volume 29, Issue 5, Pages 1475-1482Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la3046725
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Funding
- European Research Council under the European Union [267426]
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The recruitment of DO3A-derived lanthanide complexes by ligation to isophthalic acid and catechol-modified gold surfaces, and their resulting sensitization, is reported herein. Predictably pH-dependent surface recruitment is associated with the expected fingerprint europium and terbium emission characteristics. The intensity of the lanthanide luminescence scales exponentially with spacer length, indicating a strong quenching interaction between the lanthanide and the gold surface. The switchable catechol oxidation state provides a means of electrochemically triggering the release of prior ligated complexes.
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