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PMMA microfiber coated with al‐doped ZnO nanostructures for detecting uric acid
Author(s) -
Irawati N.,
Harun S. W.,
Adwan S.,
Alnowami M.,
Ahmad H.
Publication year - 2015
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.29353
Subject(s) - microfiber , materials science , uric acid , doping , nanostructure , light intensity , optics , optoelectronics , nanotechnology , composite material , chemistry , biochemistry , physics
A biosensor is demonstrated using the fabricated polymethyl methacrylate (PMMA) microfiber, which is coated with Al‐doped ZnO nanostructure using a sol‐gel process, used as the probe. The change in the transmitted light intensity from the PMMA microfiber‐based sensor with the increase in uric acid concentration is investigated. It is observed that the light power linearly decreases with the increase in uric acid concentration. As the uric acid concentration increases from 0 to 500 ppm, the transmitted light intensity reduces from −31.54 to −36.54 dBm. It is found that the sensor has a sensitivity of 0.010 dB/ppm with a good linearity of more than 99%. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2455–2457, 2015