GGBP蛋白修饰的表面等离子共振微创血糖检测仪

栗大超; 李国卿; 张晶鑫; 于海霞; 徐可欣

doi:10.3788/OPE.20132109.2333

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GGBP蛋白修饰的表面等离子共振微创血糖检测仪

微纳技术与精密机械 | 更新时间：2020-08-12

- GGBP蛋白修饰的表面等离子共振微创血糖检测仪
- Minimally-invasive blood glucose detection instrument based on surface plasmon resonance sensor decorated with GGBP
- 光学精密工程 2013年21卷第9期页码：2333-2339
- 作者机构：
  
  天津大学精密测试技术及仪器国家重点实验室，天津 300072
- 作者简介：
- 基金信息：
  
  江苏省普通高校研究生科研创新计划基金资助项目();天津市科技支撑计划重点项目();国家公益性行业科研专项重点项目();国家863高技术研究发展计划()
- DOI：10.3788/OPE.20132109.2333
  中图分类号： R318;TH773
- 收稿日期：2013-03-01，
  
  修回日期：2013-04-16，
  
  网络出版日期：2013-09-30，
  
  纸质出版日期：2013-09-15
- 稿件说明：
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栗大超李国卿张晶鑫于海霞徐可欣. GGBP蛋白修饰的表面等离子共振微创血糖检测仪[J]. 光学精密工程, 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
栗大超李国卿张晶鑫于海霞徐可欣. GGBP蛋白修饰的表面等离子共振微创血糖检测仪[J]. 光学精密工程, 2013,21(9): 2333-2339 DOI： 10.3788/OPE.20132109.2333.

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.

摘要

根据基于微流控芯片的组织液透皮抽取系统设计了一种小型化微创人体血糖检测仪器。该仪器基于微创的方法，利用真空负压抽取人体组织液，并采用表面等离子共振（SPR）技术，通过检测皮肤真皮层组织液中的葡萄糖浓度来预测血液中的葡萄糖浓度。通过绑定对葡萄糖具有特异性吸附的D-半乳糖/D-葡萄糖结合蛋白(D-GGBP)，对SPR传感器表面进行预处理，实现对葡萄糖分子的特异性吸附。实验配制了不同浓度的葡萄糖溶液，检测并得出葡萄糖溶液浓度与折射率的关系曲线。应用课题组设计的微创血糖检测仪，实验测量了葡萄糖溶液浓度与组织液浓度，并与血糖仪测量得到的葡萄糖溶液浓度进行了比较。结果表明，使用GGBP修饰过的表面等离子共振传感器测量葡萄糖水溶液浓度的下限为0.625 mg/dL，当葡萄糖水溶液浓度在0.625~5 mg/dL时有较好的线性。通过测试实验验证了该仪器的可行性，显示了结合GGBP蛋白的SPR测量技术在微创血糖检测领域有良好应用前景。

Abstract

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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