Wearable Self‐Powered Electrochemical Devices for Continuous Health Management

Parrilla, Marc; Wael, Karolien De

doi:10.1002/adfm.202107042

Cited by 82 publications

(39 citation statements)

References 181 publications

(266 reference statements)

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“…Electrocatalytic glucose oxidation reaction (GOR) is the key to construct sophisticated devices for fast and accurately detecting the trace amount of glucose in blood and food in areas of life, biomedicine and food ( Galant et al, 2015 ; Liu et al, 2020 ; Peng et al, 2020 ; Dong et al, 2021 ; Jiang et al, 2021 ; Parrilla and De Wael, 2021 ). A crucial factor determining the devices’ efficiency in detecting glucose is the GOR catalysts.…”

Section: Introductionmentioning

confidence: 99%

Fast and efficient electrocatalytic oxidation of glucose triggered by Cu2O-CuO nanoparticles supported on carbon nanotubes

Wang

Liu²,

Cheng³

et al. 2022

Front. Chem.

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Electrocatalytic glucose oxidation reaction (GOR) is the key to construct sophisticated devices for fast and accurately detecting trace glucose in blood and food. Herein, a noble-metal-free Cu/C-60 catalyst is fabricated by supporting Cu2O-CuO nanoparticles on carbon nanotubes through a novel discharge process. For GOR, Cu/C-60 shows a sensitivity as high as 532 μA mM−1 cm−2, a detection limit as low as 1 μM and a steady-state response time of only 5.5 s. Moreover, Cu/C-60 has outstanding stability and anti-interference ability to impurities. The synergistic effect of Cu2O-CuO could improve the adsorption and conversion of glucose, thus enhancing GOR performance. By using Cu/C-60, we fabricate a three-electrode chip. A portable and compact electrochemical system is constructed by connecting the three-electrode chip with Cu/C-60 to an integrated circuit board and a mobile phone for recording and displaying data. The portable and compact electrochemical system results in a GOR sensitivity of 501 μA mM−1 cm−2, which is close to the data measured on the bloated electrochemical workstation. The detection limit of the portable and compact electrochemical system in GOR is 50 μM. This is higher than those obtained on the bloated electrochemical workstation, but is much lower than the common blood glucose concentration of human body (>3 mM). This demonstrates the accuracy, reasonability and applicability of the portable and compact electrochemical system. The results of the present work are helpful for fabricating fast, efficient and portable devices for detecting trace amount of glucose in blood and food.

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Section: Introductionmentioning

confidence: 99%

Fast and efficient electrocatalytic oxidation of glucose triggered by Cu2O-CuO nanoparticles supported on carbon nanotubes

Wang

Liu²,

Cheng³

et al. 2022

Front. Chem.

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“…Wearable biosensors are receiving significant attention in recent years owing to the trend of a more personalized, real-time healthcare management of patients, as well as a more data-driven, closer monitoring of the physical condition of high-performance professionals, such as athletes and firefighters. Similarly, wearable BFCs are also receiving considerable attention, both as energy harvesters and self-powered sensors 19 – 22 . As energy harvesters, wearable BFCs collect energy from glucose or lactate contained in bodily fluids to power small devices.…”

Section: Introductionmentioning

confidence: 99%

High-performance paper-based biocathode fabricated by screen-printing an improved mesoporous carbon ink and by oriented immobilization of bilirubin oxidase

Loew

Shitanda

Goto

et al. 2022

Sci Rep

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In this study, the performance of a paper-based, screen-printed biofuel cell with mesoporous MgO-templated carbon (MgOC) electrodes was improved in two steps. First, a small amount of carboxymethyl cellulose (CMC) was added to the MgOC ink. Next, the cathode was modified with bilirubin prior to immobilizing the bilirubin oxidase (BOD). The CMC increased the accessibility of the mesopores of the MgOC, and subsequently, the performance of both the bioanode and biocathode. CMC also likely increased the stability of the electrodes. The pre-modification with bilirubin improved the orientation of the BOD, which facilitated direct electron transfer. With these two steps, an open circuit potential of 0.65 V, a maximal current density of 1.94 mA cm−2, and a maximal power density of 465 μW cm−2 was achieved with lactate oxidase as bioanode enzyme and lactate as fuel. This is one of the highest reported performances for a biofuel cell.

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“…Especially technologies enabling such self-powered biosensing operating without an external electronic power source or onboard battery 13 can provide a low-cost accurate diagnostic platform for resource-limited countries which is free from infrastructure constraints. The typical reports on the self-powered biosensors describe the use of either photovoltaics, 14 enzymatic reaction, 15 or more recently, triboelectric (electrostatics), 16 to supply power.…”

Section: Introductionmentioning

confidence: 99%