Authors: Zexian Li Yongheng Zhu Weijia Zhang Changhua Xu Yingjie Pan Yong Zhao
Publish Date: 2016/08/18
Volume: 10, Issue: 3, Pages: 666-674
Abstract
The concentration of glucose in fruit is a key index for fruit quality Despite the fact that there are many methods to detect glucose finding a rapid visual and inexpensive method to detect glucose in fruit is still a great challenge In this study the concept of paperbased microfluidic device μPAD was extended to highperformance chemosensors for semiquantitative detection of glucose in different kinds of fruit Under optimized conditions the results showed that the method detected glucose of different concentrations and the limit of detection LOD can reach 312 mM In the quantifications a good linear relationship was obtained between mean intensity and glucose concentration 5∼50 mM R2 = 0952 The analytical results obtained by the developed approach were in good agreement with the results by spectrophotometric method In addition polyethylene glycol PEG was added to cellulose paper surface to improve the both hydrophilic and sensing performance indicating that the PEGcellulose paper was superior for its rapid response for glucose Herein a lowcost and high sensitive μPAD sensor was exploited to assess the fruit quality and guide fruit intake for diabetes mellitus patientsThis study was funded by the National Natural Science Foundation of China 31271870 31501555 the project of Science and Technology Commission of Shanghai Municipality 14DZ1205100 14ZR1416600 14PJ1404300 Key Project of Shanghai Agriculture Prosperity through Science and Technology 2014 35 and 2015 48 Special Foundation for Science and Technology Development of Shanghai Ocean University A2020915200006 A2030214300075 This work was also supported by the program granted by Funding program for outstanding dissertations of Shanghai Ocean UniversityZexian Li declares that he has no conflict of interest Yongheng Zhu declares that he has no conflict of interest Weijia Zhang declares that he has no conflict of interest Changhua Xu declares that he has no conflict of interest Yingjie Pan declares that he has no conflict of interest Yong Zhao declares that he has no conflict of interest
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