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1.3 PHYSICAL SCIENCES, Optics
Holographic sensors are analytical devices that systematically diffract narrow-band light in the ultraviolet to near-infrared range for application in the detection and quantification of analytes and/or physical parameters. They can be functionalized with analyte-responsive materials to construct highly sensitive optical sensors for use in testing, where a visual readout, fast turnaround time, and reversibility are needed. Holography allows fabrication of disposable sensors that are lightweight for miniaturization and multiplexing purposes.3 Holographic sensors offer three capabilities on a single analytical device: (i) label-free analyte-responsive polymer, (ii) real-time, reversible quantification of the external stimuli, and (iii) three-dimensional visual image display.
Ali K Yetisen, Izabela Naydenova, Fernando da Cruz Vasconcellos, Jeffrey Blyth, Christopher R Lowe, Holographic sensors: three-dimensional analyte-sensitive nanostructures and their applications, Chemical Reviews 2014 Oct 11;114(20):10654-96.