For the pattern-based recognition of various metal species and bioanalytes,
nature has stimulated an emergent supramolecular domain of synthetic receptor arrays
and assays. It is not always necessary for a synthetic receptor to be selective for a
particular analyte in a differential receptor array, but the inclusive signal response from
a typical sensory array must be diagnostic for the target analyte. This new category of
molecular recognition is rapidly advancing with various groups constructing novel
array platforms as well as receptors. Owing to easy operation and better selectivity, the
sensory array has gained significant attention in the realm of complex system analysis.
Besides the conceptual background, the authors have elaborated on the applications of
various differential arrays through numerous examples. The authors believe that this
chapter devoted to IDA-based differential sensory arrays and assays will bring a new
episode of IDA-based chemosensors for target analytes.
Keywords: Analyte, Anion sensing, Complex mixtures, Colorimetric indicator, Differential sensory array, Diagnostic patterns, Detection, Differential sensing, Differential anion sensing, Fingerprint response, High-throughput screening, Immobilized sensory, Molecularly imprinted polymers, Molecular recognition, Optical signatures, Supramolecular receptors, Sensitive, Selective, Supervised pattern recognition protocols, Small molecules.
