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Motion-based glucose sensing based on a fish-like enzymeless motor

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Abstract

In this paper, we report a fish-like enzymeless motor, which consists of a phenylboronic acid modified poly(N-isopropylacrylamide) hydrogel and a surfactant, i.e. sodium dodecyl sulfate. The motor is capable of moving autonomously upon exposure to the glucose molecule. This phenomenon originates from the complexation between glucose and phenylboronic acid, which leads to the swelling of the hydrogel and the release of the surfactant, thus propelling the whole structure based on the Marangoni effect. Interestingly, the motor's moving velocity is directly proportional to the glucose concentration. Through the introduction of a magnetically responsive material, the motion direction of the motor can be manipulated. More interestingly, the combination of the glucose-dependent motion and magnetically steerable motion allows us to directly visualize the glucose concentration in human serum or urine. We thus believe that the motor reported in the current study may have potential for application in the field of glucose sensing for the detection and monitoring of diabetes.

Graphical abstract: Motion-based glucose sensing based on a fish-like enzymeless motor

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Publication details

The article was received on 16 Mar 2017, accepted on 03 Apr 2017 and first published on 03 Apr 2017


Article type: Paper
DOI: 10.1039/C7TC01122A
Citation: J. Mater. Chem. C, 2017, Advance Article
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    Motion-based glucose sensing based on a fish-like enzymeless motor

    M. Li, H. Zhang, M. Liu and B. Dong, J. Mater. Chem. C, 2017, Advance Article , DOI: 10.1039/C7TC01122A

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