LI Da-chao LI Guo-qing ZHANG Jing-xin YU Hai-xia XU Ke-xin. Minimally-invasive blood glucose detection instrument based on surface plasmon resonance sensor decorated with GGBP[J]. Editorial Office of Optics and Precision Engineering, 2013,21(9): 2333-2339
LI Da-chao LI Guo-qing ZHANG Jing-xin YU Hai-xia XU Ke-xin. Minimally-invasive blood glucose detection instrument based on surface plasmon resonance sensor decorated with GGBP[J]. Editorial Office of Optics and Precision Engineering, 2013,21(9): 2333-2339 DOI: 10.3788/OPE.20132109.2333.
Minimally-invasive blood glucose detection instrument based on surface plasmon resonance sensor decorated with GGBP
A portable minimally-invasive human blood glucose detection instrument was designed by a microfluidic chip based interstitial fluid transdermal extraction system. On the basis of the minimally-invasive method
the instrument utilizes a vacuum pressure to extract the interstitial fluid from human body
adopts the Surface Plasmon Resonance (SPR) technology to measure the glucose concentration of the interstitial fluid
and then predicts the blood glucose concentration with the glucose concentration of the interstitial fluid. Moreover
by immobilizing D-galactose/D-glucose Binding Protein (D-GGBP) which has a specific adsorption function to the glucose
it preprocesses the surface of the SPR sensor and realizes the specific adsorption of glucose molecules. In the experiment
the glucose solution with different concentrations was prepared and detected. According to the experimental results
the curve illustrating the relationship between glucose concentration and refractive index was obtained. In addition
the glucose solution and interstitial fluid were measured by using minimally-invasive blood glucose detection instrument designed by our research group. The test result was compared with that measured by a glucose meter. The experimental result indicates that the glucose detection resolution could reach 0.625 mg/dL using the SPR sensor decorated with the GGBP. It shows a good linearity when the glucose concentration ranges from 0.625 mg/dL to 5 mg/dL. The experiment verifies the feasibility of the instrument
and demonstrates that the SPR technology with immobilized GGBP will obtain a wide application in the field of minimally-invasive glucose measurement.
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references
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Minimally invasive continuous blood glucose monitor based on microfluidic and enzyme colorimetric technologies
Interstitial fluid transdermal extraction tool based on microfluidics technology
Related Author
Ke-xin XU
Xiao-long CHEN
Da-chao LI
Hai-xia YU
YU Hai-xia
LI Da-chao
LIU Tong-kun
XU Ke-xin
Related Institution
State Key Laboratory of Precision Measuring Technology and Instruments, School of Precision Instrument and Optoelectronics Engineering, Tianjin University
State Key Laboratory of Precision Measuring Technology and Instrument, College of Precision Instrument and Opto-electronics Engineering, Tianjin University