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|Title:||Dual sensor for Cd(II) and Ca(II): selective nanoliter-scale sensing of metal ions|
|Citation:||Analytical Chemistry, 2014; 86(7):3268-3272|
|Publisher:||American Chemical Society|
|Organisation:||Institute for Photonics & Advanced Sensing (IPAS)|
|Sabrina Heng, Adrian M. Mak, Daniel B. Stubing, Tanya M. Monro, and Andrew D. Abell|
|Abstract:||The first selective, dual sensor for Ca²⁺ and Cd²⁺ capable of detection at 100 pM concentrations was designed and synthesized. The experimental observations made for the MC-cation complexes and the selectivity of compounds 1 and 2 with Ca²⁺ and Cd²⁺ ions were further explored using density functional theory. A first step toward a nanoliter-scale dip sensor for the dual sensing of Ca²⁺ and Cd²⁺ was demonstrated using microstructured optical fiber as the sensing platform which is important for ion sensing in confined spaces such as the medium surrounding cell clusters. In addition, this system displays picomolar sensitivity for these ions, with an added ability to reproducibly turn ion-binding on/off.|
Limit of Detection
|Rights:||© 2014 American Chemical Society|
|Appears in Collections:||Aurora harvest|
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