Cu/ZnO Nano-Thorn with Modifiable Morphology for Photoelectrochemical Detection of Glucose

Yang, Bingwang; Han, Ning; Hu, Shiyu; Zhang, Liying; Yi, Shasha; Zhang, Zhongtao; Wang, Yu; Chen, Deliang; Gao, Yanfeng

doi:10.1149/1945-7111/abe50e

Cited by 14 publications

(2 citation statements)

References 44 publications

(51 reference statements)

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“…The repeatability and selectivity of ZIF-67@MoS2/rGO GCE are shown in Figures S4 and S5. Table S1 shows the comparison of ZIF-67@MoS2/rGO GCE and other photoelectrochemical glucose sensors [37][38][39][40][41][42], and the practical application of ZIF-67@MoS2/ rGO GCEs are investigated by testing glucose concentrations in human serum samples (Table S2). In this work, a glucose biosensor based on a screen-printed electrode (SPE) was further developed.…”

Section: Photoelectrochemical Property Characterizationmentioning

confidence: 99%

ZIF-67 Anchored on MoS2/rGO Heterostructure for Non-Enzymatic and Visible-Light-Sensitive Photoelectrochemical Biosensing

Fan,

Li,

Dong

et al. 2024

Biosensors

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Graphene and graphene-like two-dimensional layered nanomaterials-based photoelectrochemical (PEC) biosensors have recently grown rapidly in popularity thanks to their advantages of high sensitivity and low background signal, which have attracted tremendous attention in ultrahigh sensitive small molecule detection. This work proposes a non-enzymatic and visible-light-sensitive PEC biosensing platform based on ZIF-67@MoS2/rGO composite which is synthesized through a facile and one-step microwave-assisted hydrothermal method. The combination of MoS2 and rGO could construct van der Waals heterostructures, which not only act as visible-light-active nanomaterials, but facilitate charge carriers transfer between the photoelectrode and glassy carbon electrode (GCE). ZIF-67 anchored on MoS2/rGO heterostructures provides large specific surface areas and a high proportion of catalytic sites, which cooperate with MoS2 nanosheets, realizing rapid and efficient enzyme-free electrocatalytic oxidation of glucose. The ZIF-67@MoS2/rGO-modified GCE can realize the rapid and sensitive detection of glucose at low detection voltage, which exhibits a high sensitivity of 12.62 μAmM−1cm−2. Finally, the ZIF-67@MoS2/rGO PEC biosensor is developed by integrating the ZIF-67@MoS2/rGO with a screen-printed electrode (SPE), which exhibits a high sensitivity of 3.479 μAmM−1cm−2 and a low detection limit of 1.39 μM. The biosensor’s selectivity, stability, and repeatability are systematically investigated, and its practicability is evaluated by detecting clinical serum samples.

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Section: Photoelectrochemical Property Characterizationmentioning

confidence: 99%

ZIF-67 Anchored on MoS2/rGO Heterostructure for Non-Enzymatic and Visible-Light-Sensitive Photoelectrochemical Biosensing

Fan,

Li,

Dong

et al. 2024

Biosensors

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“…While retaining the advantages of electrochemical sensors (i.e. low cost and rapid response), the photoelectrochemical (PEC) sensor combines optical technology to achieve the separation of excitation signal and detection signal by selecting appropriate photoelectric active materials, which effectively reduces the background noise and increases sensitivity [6] . Titanium dioxide (TiO2) as a wide-bandgap semiconductor with non-toxic, widely distributed, polymorphic, and tunable optoelectronic properties, it has been widely utilized in many fields such as photocatalysis and PEC sensing [7,8] .…”

Section: Introductionmentioning

confidence: 99%

Optical and photoelectrochemical sensing of glucose based on Au nanohole arrays coupled with TiO2/Al films

Yu¹,

Lu²,

Ma³

et al. 2022

5th Optics Young Scientist Summit (OYSS 2022)

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The mainstream technology used in commercial glucose sensors is enzymatic electrochemical sensing. Although the use of enzymatic electrodes can specifically detect glucose, this sensor has many deficiencies such as large environmental impacts, complex enzyme-modification processes and relatively high cost. Constructing well-designed metal nanostructures can excite environment-dependent surface plasmon resonance (SPR) and generate hot electrons. By monitoring the central wavelength shift of SPR and collecting the photocurrent generated from the hot electrons, labelfree, enzyme-free, optical and photoelectrochemical (PEC) dual-mode sensing of glucose can be realized. Here, we combine magnetron sputtering, thermal treatment, nanosphere lithography, electron beam evaporation and lift-off processes to fabricate hexagonally-arranged gold nanohole arrays (Au NHAs) with adjustable diameters on aluminum (Al)/titanium dioxide (TiO2) film substrates, and constructed an enzyme-free glucose sensor based on the Al/TiO2/Au NHAs structure. The sensor is demonstrated to work in both optical sensing and PEC sensing modes. For optical sensing mode, the shift of the SPR peak corresponding to the glucose concentration range of 0-10 mM is observed, with an optical sensing sensitivity of 857 nm/RIU. For PEC sensing mode, the sensor at zero bias shows a linear range of 1 M-10 mM for glucose detection under simulated one-sun illumination, along with the detection of limit down to 1 M and the photocurrent sensing sensitivity of 0.53×logC A μM -1 cm -2 (where C is the molar concentration of glucose). Furthermore, the as-prepared glucose sensor also shows good stability and specific selection for glucose detection.

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CuCo-Cu@CoCH stamen-like nanoarray prepared by co-reduction for electrochemical detection of hydrogen peroxide

Han

Zhang

et al. 2022

Applied Surface Science

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Cu/ZnO Nano-Thorn with Modifiable Morphology for Photoelectrochemical Detection of Glucose

Cited by 14 publications

References 44 publications

ZIF-67 Anchored on MoS2/rGO Heterostructure for Non-Enzymatic and Visible-Light-Sensitive Photoelectrochemical Biosensing

ZIF-67 Anchored on MoS2/rGO Heterostructure for Non-Enzymatic and Visible-Light-Sensitive Photoelectrochemical Biosensing

Optical and photoelectrochemical sensing of glucose based on Au nanohole arrays coupled with TiO2/Al films

CuCo-Cu@CoCH stamen-like nanoarray prepared by co-reduction for electrochemical detection of hydrogen peroxide

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