Roles of TiO2 in the highly robust Au nanoparticles-TiO2 modified polyaniline electrode towards non-enzymatic sensing of glucose

Chiu, Wan–Ting; Chang, Tso-Fu Mark; Sone, Masato; Tixier‐Mita, Agnès; Toshiyoshi, Hiroshi

doi:10.1016/j.talanta.2020.120780

Cited by 37 publications

(17 citation statements)

References 76 publications

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“…Chiu et al prepared nanocomposite of Au nanoparticles and TiO 2 on a polyaniline electrode and explored the effect of the amount of TiO 2 nanoparticles on electrode performance [105]. Despite TiO 2 having poor catalytic activity for glucose, it can make Au nanoparticles evenly distributed on the electrode.…”

Section: Metal/tio 2 Composite-based Electrodementioning

confidence: 99%

Metal oxide-based composite for non-enzymatic glucose sensors

Liu

Zeng

Guo

et al. 2020

J Mater Sci: Mater Electron

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The increasing demand for monitoring the glucose concentration in the blood of diabetic patients has aroused the attention of researchers to prepare high-performance glucose biosensors. After decades of development, enzyme-based biosensors have gradually matured and commercialized, but they still suffer from insufficient stability due to the inherent defects of the enzyme. Non-enzymatic glucose sensor was proposed to address this issue. The introduction of nanotechnology has provided more possibilities for the preparation of highly efficient catalytic materials. Among the synthesized electrocatalysts, metal oxides are one of the most important components owing to their outstanding properties. Recent studies have integrated metal oxides with other materials to further improve sensor performance. This review focuses on the application of metal oxide-based hybrid structure in the glucose sensor, mainly including metal oxide/metal oxide, metal/metal oxide, and carbon material/metal oxide. The preparation method, electrochemical properties, and catalytic mechanism of the sensors are discussed in detail. Finally, we present some of the existing challenges and make personal predictions for the future development of non-enzymatic glucose sensors.

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Section: Metal/tio 2 Composite-based Electrodementioning

confidence: 99%

Metal oxide-based composite for non-enzymatic glucose sensors

Liu

Zeng

Guo

et al. 2020

J Mater Sci: Mater Electron

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“…Finally, the crucial materials, which determine the performance of the glucosesensing electrodes, would be the electroactive materials (Figure 6c-g). There are many types of electroactive material for the sensing of glucose by the electrochemical methods, such as (1) metal materials and (2) alloy materials [34][35][36][37][48][49][50]53,61,[125][126][127][128][129][130][131][132] (Figure 6c,d), (3) oxide materials and (4) hydroxide materials [39,40,51,52,54,55,58,59,[64][65][66][133][134][135][136][137][138][139] (Figure 6e,f), as well as ( 5) composite materials [38,[42][43][44][45][46][47]56,…”

Section: Systems Of Electroactive Materials For the Sensing Of Glucosementioning

confidence: 99%

“…In this article, the non-enzymatic glucose sensors are further classified into five major systems: (1) mono-metallic-based [34,35], (2) bi-metallic-based [36,37], (3) metallic-oxidebased [38][39][40], (4) metallic-hydroxide-based [41], and (5) mixtures of the metal/metal derivative-based electrodes [42][43][44][45][46]. Besides the aforementioned metal and/or metal derivative-based catalysts, supporting materials, which could enhance the overall electrode stability, the overall electrical conductivity of the electrode, the surface area of active materials, and the strength of the electroactive sites, have been often utilized [47][48][49][50][51]. Among the supporting materials, multi-walled carbon nanotube (MWCNT) [36,48,50,51], graphene sheet [35], polyaniline (PANI) [42,47], graphene oxide [49], and so on, are often seen materials.…”

Section: Introductionmentioning

confidence: 99%

“…Besides the aforementioned metal and/or metal derivative-based catalysts, supporting materials, which could enhance the overall electrode stability, the overall electrical conductivity of the electrode, the surface area of active materials, and the strength of the electroactive sites, have been often utilized [47][48][49][50][51]. Among the supporting materials, multi-walled carbon nanotube (MWCNT) [36,48,50,51], graphene sheet [35], polyaniline (PANI) [42,47], graphene oxide [49], and so on, are often seen materials. In the consideration of the functionality, carbon materials provide a higher surface area of the electroactive materials, while PANI promoted the overall electrical conductivity.…”

Section: Introductionmentioning

confidence: 99%

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Developments of the Electroactive Materials for Non-Enzymatic Glucose Sensing and Their Mechanisms

et al. 2021

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A comprehensive review of the electroactive materials for non-enzymatic glucose sensing and sensing devices has been performed in this work. A general introduction for glucose sensing, a facile electrochemical technique for glucose detection, and explanations of fundamental mechanisms for the electro-oxidation of glucose via the electrochemical technique are conducted. The glucose sensing materials are classified into five major systems: (1) mono-metallic materials, (2) bi-metallic materials, (3) metallic-oxide compounds, (4) metallic-hydroxide materials, and (5) metal-metal derivatives. The performances of various systems within this decade have been compared and explained in terms of sensitivity, linear regime, the limit of detection (LOD), and detection potentials. Some promising materials and practicable methodologies for the further developments of glucose sensors have been proposed. Firstly, the atomic deposition of alloys is expected to enhance the selectivity, which is considered to be lacking in non-enzymatic glucose sensing. Secondly, by using the modification of the hydrophilicity of the metallic-oxides, a promoted current response from the electro-oxidation of glucose is expected. Lastly, by taking the advantage of the redistribution phenomenon of the oxide particles, the usage of the noble metals is foreseen to be reduced.

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“…This interest has been related to applications of these materials as catalysts and sensors. [ 5–9 ] These gold NPs exhibit unique properties compared to their bulk counterpart, and its catalytic activity has a critical dependence on morphology and particle size. Considerable effort has been made on the preparation of supported metal clusters with the objective of achieving controlled growth.…”

Section: Introductionmentioning

confidence: 99%

Theoretical study of Au_n clusters (n = 1–5) deposited on a rutile TiO₂ (110) slab, concerning structure and stability

2020

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The initial nucleation of gold clusters Au n (n = 1-5) on TiO 2 rutile (110) reduced surface is studied using density functional theory and a full-potential augmented-planewave method implemented in the WIEN2k code. The first two gold atoms remained tied to the surface with a bond length similar to those belonging to other well-known related materials, while the other gold atoms do not spread over the surface; they preferred to form a new layer. The occurrence of relativistic effects produced a preferential triangle geometry for Au 3 and a combination of triangular units for Au 4 and Au 5. The Au-Au average distance increased from n = 2 to n = 5, indicating an expansion with a tendency to the bond distance found in the bulk. We are reporting an early 2D!3D transition of small folding, from Au 3 !Au 4 , followed by an Au 4 !Au 5 transition of evident 3D character.

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Roles of TiO2 in the highly robust Au nanoparticles-TiO2 modified polyaniline electrode towards non-enzymatic sensing of glucose

Cited by 37 publications

References 76 publications

Metal oxide-based composite for non-enzymatic glucose sensors

Metal oxide-based composite for non-enzymatic glucose sensors

Developments of the Electroactive Materials for Non-Enzymatic Glucose Sensing and Their Mechanisms

Theoretical study of Au_n clusters (n = 1–5) deposited on a rutile TiO₂ (110) slab, concerning structure and stability

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Roles of TiO2 in the highly robust Au nanoparticles-TiO2 modified polyaniline electrode towards non-enzymatic sensing of glucose

Cited by 37 publications

References 76 publications

Metal oxide-based composite for non-enzymatic glucose sensors

Metal oxide-based composite for non-enzymatic glucose sensors

Developments of the Electroactive Materials for Non-Enzymatic Glucose Sensing and Their Mechanisms

Theoretical study of Aun clusters (n = 1–5) deposited on a rutile TiO2 (110) slab, concerning structure and stability

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Theoretical study of Au_n clusters (n = 1–5) deposited on a rutile TiO₂ (110) slab, concerning structure and stability