| http://www.w3.org/ns/prov#value | - SUMMARY OF THE INVENTION [0011] Embodiments of this invention include materials (e.g., proteins and DNA oligonucleotides), devices, systems, and methods for detecting and quantifying trace amounts of small molecule analytes, particularly metal ions and metal ion complexes, in environmental or biological samples using constituents or modified constituents of naturally occurring proteins and nucleic
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