ZnCuInSe/Au/TiO2 sandwich nanowires-based photoelectrochemical biosensor for ultrasensitive detection of kanamycin

Geng, Hongchao; Chen, Xiaoxu; Sun, Leilei; Qiao, Yan; Song, Jie; Shi, Sisi; Cai, Qingyun

doi:10.1016/j.aca.2020.11.017

Cited by 21 publications

(6 citation statements)

References 39 publications

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“…The TiO 2 /ErGO/GCE nanocomposite has become a popular candidate material for food colorant detection because of its high sensitivity, anti-interference performance, repeatability, reproducibility, and stability. The photoelectrochemical detection platform based on nucleic acid aptamer-modified sandwiched ZnCuInSe/Au/TiO 2 nanowires was developed by Geng et al [ 47 ]. Due to the high photocurrent density, the sensor has a high sensitivity with a detection limit of 0.2 nM.…”

Section: Optoelectrical Application Based On Tio 2 ...mentioning

confidence: 99%

A Review on the Progress of Optoelectronic Devices Based on TiO2 Thin Films and Nanomaterials

Sang

Yao

et al. 2023

Nanomaterials

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Titanium dioxide (TiO2) is a kind of wide-bandgap semiconductor. Nano-TiO2 devices exhibit size-dependent and novel photoelectric performance due to their quantum limiting effect, high absorption coefficient, high surface-volume ratio, adjustable band gap, etc. Due to their excellent electronic performance, abundant presence, and high cost performance, they are widely used in various application fields such as memory, sensors, and photodiodes. This article provides an overview of the most recent developments in the application of nanostructured TiO2-based optoelectronic devices. Various complex devices are considered, such as sensors, photodetectors, light-emitting diodes (LEDs), storage applications, and field-effect transistors (FETs). This review of recent discoveries in TiO2-based optoelectronic devices, along with summary reviews and predictions, has important implications for the development of transitional metal oxides in optoelectronic applications for researchers.

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Section: Optoelectrical Application Based On Tio 2 ...mentioning

confidence: 99%

A Review on the Progress of Optoelectronic Devices Based on TiO2 Thin Films and Nanomaterials

Sang

Yao

et al. 2023

Nanomaterials

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“…Upon 4-CP introduction, holes in the g-C 3 N 4 VB can be sacrificed by 4-CP, which suppresses the e − -h + recombination then further enhances the photocurrent density. Employing ZnCuInSe (Zn-doped CuInSe 2 quantum dots)/Au/TiO 2 nanowires sandwich structure, Geng et al developed a facile PEC aptasensor for kanamycin detection with a linear response range from 0.2 to 250 nM [126]. The Au NPs, which were sandwiched between the TiO 2 nanowires and the ZnCuInSe QDs layer, play a dual role in enhancing the photocurrent, as shown in Figure 6b.…”

Section: Semiconductor-metal Heterojunctionsmentioning

confidence: 99%

“…(a) Photocurrent generation mechanism schematic diagram of Au/g-C3N4/ITO electrode [125]. (b) Dual role of the Au nanoparticles in the ZnCuInSe/Au/TiO2 sandwich structure serving as a plasmonic photosensitizer and an electron relay[126]. (c) The mechanism of atrazine PEC sensor based on Au NPs/3DOM TiO2/FTO[127].…”

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confidence: 99%

Recent Advances in Photoelectrochemical Sensors for Analysis of Toxins and Abused Drugs in the Environment

et al. 2023

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Toxic pollutants in the environment, such as toxins and abused drugs, have posed a major threat to human health and ecosystem security. It is extremely desirable to develop simple, low-cost, sensitive, and reliable techniques for the detection of these pollutants in the environment. As a booming analytical method, photoelectrochemical (PEC) sensors possess low background noise and high sensitivity. The performances of PEC sensors are fundamentally related to the photoelectric conversion efficiency, which mainly depends on the properties of photoactive materials. This review aims to summarize the engineered photoactive materials, i.e., semiconductors and semiconductor-based heterojunctions, as well as their actual applications, with emphasis on sensing mechanisms in PEC sensors for the analysis of toxins and abused drugs in the environment. Finally, the future research perspectives in this field are also discussed.

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“…[1][2][3][4] Titanium dioxide was one of the first materials chosen for these analyses, considering its known photocatalytic properties. [5][6][7][8][9][10][11] However, this material has some disadvantages, due to the rapid recombination of the photogenerated charges and good activity only under intense UV light. To overcome these problems there are numerous strategies, such as morphological control, doping, sensitization with quantum dots, surface cocatalyst deposition and the formation of heterojunctions.…”

Section: Introductionmentioning

confidence: 99%

“…Titanium dioxide was one of the first materials chosen for these analyses, considering its known photocatalytic properties [5–11] . However, this material has some disadvantages, due to the rapid recombination of the photogenerated charges and good activity only under intense UV light.…”

Section: Introductionmentioning

confidence: 99%

Gold Nanoparticles‐Titania Heterojunction: Photoelectrochemical Detection of Ciprofloxacin

et al. 2023

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A photoelectrochemical sensor composed of a heterojunction between titanium dioxide and gold nanoparticles was fabricated and used for the determination of ciprofloxacin, a widely used, but environmentally toxic third‐generation antibiotic. This material has been extensively characterized from the morphological, electrochemical and photoelectrochemical points of view, comparing it with the respective counterparts. It has been demonstrated that only the presence of the heterojunction allows the detection of ciprofloxacin, thanks to the properties of gold nanoparticles combined with those of titanium dioxide. These increased performances have allowed the detection of the analyte even with low power sources and wavelengths in the visible region, obtaining good detection limits and excellent resistance to possible interferents. Thanks to this, the future implementation of these sensors in integrated circuits for online and onsite analysis is foreseen.

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ZnCuInSe/Au/TiO2 sandwich nanowires-based photoelectrochemical biosensor for ultrasensitive detection of kanamycin

Cited by 21 publications

References 39 publications

A Review on the Progress of Optoelectronic Devices Based on TiO2 Thin Films and Nanomaterials

A Review on the Progress of Optoelectronic Devices Based on TiO2 Thin Films and Nanomaterials

Recent Advances in Photoelectrochemical Sensors for Analysis of Toxins and Abused Drugs in the Environment

Gold Nanoparticles‐Titania Heterojunction: Photoelectrochemical Detection of Ciprofloxacin

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