Enhanced cathodic electrochemiluminescent microcystin-LR aptasensor based on surface plasmon resonance of Bi nanoparticles

Yuan, Ruishuang; Liu, Qian; Hong, Honghong; Ma, Hanyu; Xiao, Liting; Li, Yaqi; Jiang, Ding; Hao, Nan; Wang, Kun

doi:10.1016/j.jhazmat.2022.128877

Cited by 27 publications

(8 citation statements)

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“…However, when the hydrothermal time is shortened to 1 h, as shown in Figure c, the photocurrent densities exhibit regular decline as the concentration of MC-LR increases from 10 –9 to 10 3 μg/L, working as a photocurrent-suppressed type. To the best of our knowledge, as shown in Figure S8, the 1h-H-TiO 2 /Ti 2 CO X and 4h-H-TiO 2 /Ti 2 CO X PEC aptamer sensors for MC-LR detection reported in this work present a record LOD of 1 fg/L value and a record detection range (spanning 12 orders of magnitude) compared with the published PEC or other types of MC-LR detection sensors from 2016 to 2022. ,− …”

Section: Resultsmentioning

confidence: 61%

Universal Hydrogen-Treated TiO₂ Nanorod Array/Ti₂CO_X MXene PEC Aptamer Sensor Modulated by the Transport Characteristic of Photogenerated Holes

et al. 2023

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A semiconductor photoelectrochemical (PEC) aptamer sensor has been widely researched in recent years because of its broad application prospects. However, a universal PEC sensor has not been achieved, and its sensing mechanism based on a photogenerated carrier transfer process has yet to be elucidated. Herein, a novel hydrogen-treated TiO2 nanorod array one-dimensional (1D)/Ti2CO X MXene two-dimensional (2D) (H-TiO2/Ti2CO X ) PEC aptamer sensor is presented, which achieved a record detection range of 10–9–103 μg/L and a limit of detection (LOD) of 1 fg/L for microcystic toxins-LR detection. Besides, the PEC sensor can also test serotonin (5-HT), aflatoxin-B1, and prostate-specific antigen (PSA) with high performance by changing the aptamers, exhibiting favorable application universality. Furthermore, a new phenomenon of a switchable enhanced/suppressed photocurrent detection signal was discovered from H-TiO2/Ti2CO X PEC aptamer sensors through the variation of the length of the TiO2 nanorod. Meanwhile, it reveals that the steric hindrance effect determines the photogenerated hole transfer and depolarization processes, which is proposed for the first time as the predominant mechanism of the switchable enhanced/suppressed photocurrent signal for PEC sensors, giving possibilities to develop PEC sensors with higher efficiency.

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Section: Resultsmentioning

confidence: 61%

Universal Hydrogen-Treated TiO₂ Nanorod Array/Ti₂CO_X MXene PEC Aptamer Sensor Modulated by the Transport Characteristic of Photogenerated Holes

et al. 2023

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“…29 The diffraction peaks about 27.5° originated from the in-plane characteristics of the graphene. 30 Morphology and size of the Ga-doped CDs were characterized by TEM, as shown in Fig. 2b and c.…”

Section: Resultsmentioning

confidence: 99%

Bright solid-state luminescence and high-temperature resistance of Ga-doped carbon dots with ultra-wideband white emission for light-emitting diodes

Gao,

Yu,

Han

et al. 2023

Dalton Trans.

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“…BBMs (BiNTs, Bi 2 S 3 , Bi 2 O 3 , etc.) with excellent biocompatibility and suitable theoretical energy band have great potential in constructing near‐infrared photoelectrochemical sensors [104] . In addition, Bi′s plasma resonance and metal ion enrichment characteristics can amplify the signal and improve detection sensitivity.…”

Section: Applications Of Bismuthmentioning

confidence: 99%

Bismuth, a Previously Less‐studied Element, Is Bursting into New Hotspots

et al. 2022

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Bismuth (Bi) is a particular element with many distinctive properties such as low toxicity or nontoxicity, high specific gravity, photoluminescence, photoelectronic and photovoltaic effects, strong oxidation ability, water insolubility, etc. These distinctive properties help to boost various applications of Bi. The recent decades have witnessed a dramatic increase in the application research of Bi-based materials, especially on photocatalysis. This paper begins with an introduction to the history of Bi, followed by a summary of its distinctive properties, and then provides a comprehensive overview of its applications in photocatalysis, sensing, medicine, and diagnosis and treatments, with a particular focus on near-infrared photocatalysis, flexible wearable sensor, in vivo detection and therapeutics. Finally, the main challenges and development prospects of the Bi-based materials are introduced. With the development trends of Bi research discussed, this paper is aimed at improving the knowledge of Bi and arising the research interest of Bi in the hope of extending the applications of Bi.

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Enhanced cathodic electrochemiluminescent microcystin-LR aptasensor based on surface plasmon resonance of Bi nanoparticles

Cited by 27 publications

References 50 publications

Universal Hydrogen-Treated TiO₂ Nanorod Array/Ti₂CO_X MXene PEC Aptamer Sensor Modulated by the Transport Characteristic of Photogenerated Holes

Universal Hydrogen-Treated TiO₂ Nanorod Array/Ti₂CO_X MXene PEC Aptamer Sensor Modulated by the Transport Characteristic of Photogenerated Holes

Bright solid-state luminescence and high-temperature resistance of Ga-doped carbon dots with ultra-wideband white emission for light-emitting diodes

Bismuth, a Previously Less‐studied Element, Is Bursting into New Hotspots

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Enhanced cathodic electrochemiluminescent microcystin-LR aptasensor based on surface plasmon resonance of Bi nanoparticles

Cited by 27 publications

References 50 publications

Universal Hydrogen-Treated TiO2 Nanorod Array/Ti2COX MXene PEC Aptamer Sensor Modulated by the Transport Characteristic of Photogenerated Holes

Universal Hydrogen-Treated TiO2 Nanorod Array/Ti2COX MXene PEC Aptamer Sensor Modulated by the Transport Characteristic of Photogenerated Holes

Bright solid-state luminescence and high-temperature resistance of Ga-doped carbon dots with ultra-wideband white emission for light-emitting diodes

Bismuth, a Previously Less‐studied Element, Is Bursting into New Hotspots

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Product

Resources

About

Universal Hydrogen-Treated TiO₂ Nanorod Array/Ti₂CO_X MXene PEC Aptamer Sensor Modulated by the Transport Characteristic of Photogenerated Holes

Universal Hydrogen-Treated TiO₂ Nanorod Array/Ti₂CO_X MXene PEC Aptamer Sensor Modulated by the Transport Characteristic of Photogenerated Holes