Optical detection of glucose based on a composite consisting of enzymatic ZnO nanorods and InGaN/GaN multiple quantum wells
Journal
Journal of Physical Chemistry C
Journal Volume
115
Journal Issue
30
Pages
14664-14667
Date Issued
2011
Author(s)
Abstract
Based on the high surface-to-volume ratio of nanorods and high sensitivity of piezoelectric properties of nitride semiconductors, an enzyme-functionalized composite consisting of nanorods and nitride light-emitting devices (LEDs) provides an excellent opportunity for the development of glucose detectors using optical methods. To demonstrate our working principle, a sensing device based on In0.25Ga0.75N/GaN multiple quantum wells and ZnO nanorods has been constructed and exposed to target glucose solutions. The pronounced changes in both emission and Raman scattering spectra under different target glucose concentrations clearly illustrate the feasibility of our newly designed composite for the creation of highly sensitive biosensors with optical detection.
Type
journal article