Constructing a Si-CuO core-shell nanowire heterojunction photoanode for enzyme-free and highly-sensitive glucose sensing

Zhang, Ruoxi; Ke, Shengchen; Lu, Wenxiang; Zhu, Wen; Ma, Lu; Qin, Linling; Wu, Shaolong; Li, Xiao Feng

doi:10.1016/j.apsusc.2023.157593

Cited by 9 publications

(5 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the Cu 2p spectrum (Figure d), two prominent 2p 3/2 BE peaks were observed at 932.76 and 935.29 eV. Additionally, typical satellite peaks appeared in the range of 940–945 eV and 960–965 eV, indicating the presence of Cu(II) . Therefore, 935.29 eV should be attributed to the 2p 3/2 peak of Cu(II).…”

Section: Resultsmentioning

confidence: 94%

“…Additionally, typical satellite peaks appeared in the range of 940−945 eV and 960− 965 eV, indicating the presence of Cu(II). 36 Therefore, 935.29 eV should be attributed to the 2p 3/2 peak of Cu(II). However, the presence of Cu(I) could not be directly determined due to the absence of a clear shift in the BE position of metal Cu and Cu(I); 37 it could only be inferred from XPS analysis that some of the metal Cu was oxidized to Cu(II) and bound with BTA.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Microscale Corrosion Inhibition Behavior of Four Corrosion Inhibitors (BTA, MBI, MBT, and MBO) on Archeological Silver Artifacts Based on Scanning Electrochemical Cell Microscopy

Sun,

Liu,

et al. 2023

Anal. Chem.

View full text Add to dashboard Cite

The problem of corrosion-induced discoloration and embrittlement in silverware is a significant concern for the long-term preservation of excavated archeological silver artifacts, even after thermal restoration. The key to addressing this issue lies in the meticulous selection and evaluation of corrosion inhibitors that possess targeted corrosion inhibition capabilities. This study focuses on the evaluation of corrosion inhibitors for archeological silver artifacts using scanning electrochemical cell microscopy (SECCM) and X-ray photoelectron spectroscopy (XPS). The researchers aimed to compare the inhibition effects of four corrosion inhibitors [1,2,3-benzotriazole (BTA), 2-mercaptobenzimidazole (MBI), 2-mercaptobenzothiazole (MBT), and 2-mercaptobenzoxazole (MBO)] on a simulated Ag–Cu alloy sample and understand their mechanisms. The results showed that MBT exhibited better corrosion inhibition for microstructural regions with higher silver content due to its ability to form stable chelation structures with Ag(I). MBO exhibited better corrosion inhibition for microstructural regions with higher copper content due to its strong affinity with Cu(I). The targeted corrosion inhibition ability for the β-phase was ranked as MBO > BTA ≈ MBI > MBT, while for the α-phase the ranking was MBT > MBO > MBI > BTA. The study demonstrated the feasibility and capabilities of SECCM in the targeted screening of corrosion inhibitors for different compositions and microstructural regions in archeological metal artifacts. This study highlights the potential of SECCM in corrosion inhibitor research for archeological metal artifacts and wider applications in metal material corrosion protection.

show abstract

Section: Resultsmentioning

confidence: 94%

Section: ■ Results and Discussionmentioning

confidence: 99%

Microscale Corrosion Inhibition Behavior of Four Corrosion Inhibitors (BTA, MBI, MBT, and MBO) on Archeological Silver Artifacts Based on Scanning Electrochemical Cell Microscopy

Sun,

Liu,

et al. 2023

Anal. Chem.

View full text Add to dashboard Cite

show abstract

“…O 2further reacted with H 2 O and electrons to produce H 2 O 2 and hydroxyl radicals (•OH) [Equations ( 6) and ( 7)] [37,38] . These strongly oxidizing •OH radicals initiated the auto-oxidation of glucose to produce glucolactone [Equation ( 8)] [39] .…”

Section: Resultsmentioning

confidence: 99%

Printing surface cuprous oxides featured liquid metal for non-enzymatic electrochemical glucose sensor

Luo,

Liao,

Guo

et al. 2024

Soft Sci

View full text Add to dashboard Cite

Electrochemical glucose sensors that rely on two-dimensional (2D) oxides have attracted significant attention owing to the strong sensing activity of 2D oxides, but their practical application is hindered by the complexity and high cost of fabrication of electrodes and integrated devices. Herein, a convenient and effective fabrication route that includes printing a Ga-based liquid metal (LM) as a current collection electrode, followed by growing electrochemically active 2D oxides directly on the surface of Ga-based LMs under mild conditions, is developed for non-enzyme-based electrochemical sensors. Specifically, 2D annealed Cu-Oxide (ACO) is successfully grown on a printed Ga electrode through a galvanic replacement reaction, resulting in the formation of a mechanically and electrically well-matched interface between the active sensing materials and the current collection substrate. Benefitting from the high quantity of 2D ACO and good charge transfer at the interface, the as-prepared ACO electrode exhibits attractive glucose sensing performance, with a wide linear range (1 μM-10 mM) of effective detection, low detection limit down to 1 μM, and high sensitivity of 0.87 μA·mM-1·cm-2. Our study highlights the potential of using LMs in bio-sensing applications and provides a non-enzyme-based electrochemical biosensor platform for effective glucose detection in diets and clinical diagnostic settings.

show abstract

“…PEC sensors successfully combine optical and electrochemical sensors by utilizing photoactive materials that absorb light. Through using light as the excitation source of the signal and an electrical signal as the signal output for detection, PEC sensors can achieve effective separation of the input signal and output signal, and avoid the shortcomings of high background noise of electrochemical sensors [19,20]. However, the PEC sensors are usually insensitive to the light source.…”

Section: Diabetesmentioning

confidence: 99%

“…To illustrate the performance of the Au NHAs/TiO 2 /Al structure for real glucose sensing, we further evaluated its selectivity, anti-interference, and stability. As shown in Figure 8(a), where we simulated the real situation in human body fluids by adding the substances coexisting with the body fluids [20], such as Urea, LA, DA, NaCl, UA, and Suc, as interfering substances to the background solution [25,26]. It can be seen that when these interfering substances are added, the corresponding photocurrents are mildly different from that in the background solution, while there is a significant increase in the photocurrent when 3 mM glucose is added.…”

Section: Photoelectrochemical Behaviors and Optoelectronic Sensingmentioning

confidence: 99%

Glucose Sensing Optionally in Optical and Optoelectrical Modes Based on Au-TiO2 Schottky Nanojunctions

Ma,

Zhu,

Qin

et al. 2024

J. Solar Eneg. Res. Updat.

View full text Add to dashboard Cite

In recent years, metallic nanostructures have been extensively researched in the field of plasmonic for optical and optoelectronic applications such as biochemical sensing. However, an additional optoelectronic converter or spectrometer is usually required for the sensing application. Herein, the orderly-patterned Au-TiO2 Schottky junction with an Al film that we coupled, which simultaneously works as an optical reflector and conducting layer, can achieve optical sensing of glucose by exciting surface plasmon resonance associated with the environment, and meanwhile can realize glucose detection with direct electrical-signal readout by collecting the photogenerated carriers inside the Au nanostructures and TiO2 film. When used in optical mode, the designed sensor shows a sensing sensitivity of up to 1200.0 nmRIU-1 in numerical calculation, and the measured value is 346.1 nmRIU-1. When used in optoelectrical mode, the glucose sensor under one-sun illumination obtains a sensitivity of 70.0 µAM-1cm-2 in the concentration range of 0–10 mM, with a detection limit of 0.05 µM (Signal/Noise=3). Simulation and experimental results demonstrated that the Al-film-coupled Au-TiO2 Schottky nanojunction can monitor glucose concentration optionally in optical and optoelectrical modes, which presents an alternative route to the miniaturized, portable, and multi-functioned sensors.

show abstract

Constructing a Si-CuO core-shell nanowire heterojunction photoanode for enzyme-free and highly-sensitive glucose sensing

Cited by 9 publications

References 41 publications

Microscale Corrosion Inhibition Behavior of Four Corrosion Inhibitors (BTA, MBI, MBT, and MBO) on Archeological Silver Artifacts Based on Scanning Electrochemical Cell Microscopy

Microscale Corrosion Inhibition Behavior of Four Corrosion Inhibitors (BTA, MBI, MBT, and MBO) on Archeological Silver Artifacts Based on Scanning Electrochemical Cell Microscopy

Printing surface cuprous oxides featured liquid metal for non-enzymatic electrochemical glucose sensor

Glucose Sensing Optionally in Optical and Optoelectrical Modes Based on Au-TiO2 Schottky Nanojunctions

Contact Info

Product

Resources

About