Researchers at the University of Houston,*Korea Advanced Institute of Science and Tech**logy, and*Korea Institute of Science and Tech**logy have reported in journal*Advanced Materials*the development of a Contact lens tech**logy that may one day be used to Measure Glucose via the tears. It relies on enhancing the ability of*surface-enhanced Raman scattering spectroscopy to Measure Glucose concentrations and other biomolecules using a special printed na**structure.
The na**structure consists of printed gold na**wires on top of a gold film that are integrated into a flexible Contact lens. These Na**structures create so-called “hot spots” that significantly increase the sensitivity of*surface-enhanced Raman scattering spectroscopy to detect what’s under them.
Any future Glucose sensor based on this tech**logy would require an external light source to illuminate*the Contact lens and an accompanying sensor to perform the detection. Though such devices essentially already exist, the new research may make them also useful in the field of diabetes management.
From the study in Advanced Materials:
3D stacking of plasmonic Na**structures is achieved using a solvent-assisted na**transfer printing (S-nTP) technique to provide extremely dense and regular hot spot arrays for highly sensitive surface-enhanced Raman spectroscopy (SERS) analysis. Moreover, hybrid plasmonic Na**structures obtained by printing the na**wires on a continuous metal film or graphene surface show significantly intensified SERS signals due to vertical plasmonic coupling.
09-28-2016, 07:51 PM
Na**structures Within Contact Lenses Help Measure Glucose Through The Eye
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