Journal
BIOSENSORS-BASEL
Volume 13, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/bios13010105
Keywords
uric acid; glucose; wearable; sensor; sweat
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In this study, a dual-function wearable electrochemical sensor for uric acid and glucose detection in sweat was proposed. The sensor exhibited high sensitivity and selectivity, and showed feasibility for real sample sensing in sweat.
Simultaneous detection of uric acid and glucose using a non-invasive approach can be a promising strategy for related diseases, e.g., diabetes, gout, kidney disease, and cardiovascular disease. In this study, we have proposed a dual-function wearable electrochemical sensor for uric acid and glucose detection in sweat. The sensor with a four-electrode system was prepared by printing the ink on a common rubber glove. CV and chronoamperometry were used to characterize the prepared sensor's electrochemical sensing performance. The sensors exhibited the linear range from 0 to 1.6 mM and 0 to 3.7 mM towards uric acid and glucose electrochemical sensing in phosphate-buffered solution, with the corresponding limit of detection of 3.58 mu M and 9.10 mu M obtained, respectively. Moreover, the sensors had shown their feasibility of real sample sensing in sweat. The linear detection range for uric acid (0 to 40 mu M) and glucose (0 to 1.6 mM) in the sweat can well cover their concentration range in physiological conditions. The prepared dual-function wearable electrochemical sensor features easy preparation, fast detection, high sensitivity, high selectivity, and the practical application potential in uric acid and glucose sensing.
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