DocumentCode
3547057
Title
A soft hydrogel contact lens with an encapsulated sensor for tear glucose monitoring
Author
Yao, H. ; Marcheselli, C. ; Afanasiev, A. ; Lähdesmäki, I. ; Parviz, B.A.
Author_Institution
Electr. Eng. Dept., Univ. of Washington, Seattle, WA, USA
fYear
2012
fDate
Jan. 29 2012-Feb. 2 2012
Firstpage
769
Lastpage
772
Abstract
We report a hydrogel-based contact lens with an encapsulated glucose sensor. The sensor is fabricated on a flexible transparent parylene film. The parylene-based sensor is then encased inside a soft contact lens made of poly(hydroxyethyl methacrylate) (polyHEMA) hydrogel. We test the glucose sensor with different concentrations of glucose and interfering chemicals found in tear film, such as ascorbic acid. The rapid response, good linearity and repeatability demonstrate the basic functionality of this soft contact lens.
Keywords
biomedical equipment; biosensors; chemical sensors; contact lenses; hydrogels; patient monitoring; polymer films; ascorbic acid; encapsulated glucose sensor; flexible transparent parylene film; parylene-based sensor; poly(hydroxyethyl methacrylate) hydrogel; soft hydrogel contact lens; tear film; tear glucose monitoring; Aluminum; Chemicals; Fluids; Lenses; Monitoring; Polymers; Sugar;
fLanguage
English
Publisher
ieee
Conference_Titel
Micro Electro Mechanical Systems (MEMS), 2012 IEEE 25th International Conference on
Conference_Location
Paris
ISSN
1084-6999
Print_ISBN
978-1-4673-0324-8
Type
conf
DOI
10.1109/MEMSYS.2012.6170299
Filename
6170299
Link To Document