Plasma-based instant synthesis of functionalized gold nanoparticles for colorimetric detection of lead ions

Li, Xuanhe; Zhao, Chenglin; Lin, Liangliang

doi:10.1016/j.ces.2022.117849

Cited by 26 publications

(15 citation statements)

References 37 publications

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“…The LOD of this sensor strip is 18.8 nM, which is lower than the Cd 2+ concentration set by organizations including the United States Environmental Protection Agency, World Health Organization, European Unio, and National Health and Medical Research Council. In addition, several studies used AuNP‐based colorimetric sensors for monitoring other heavy metals such as mercury, lead, uranium, and arsenic in water 47–50 . In addition, there are a few reports that AuNP‐based colorimetric sensors have been used to detect toxins and pesticides in water 51–54 …”

Section: Optical Sensor Designmentioning

confidence: 99%

“…In addition, several studies used AuNP-based colorimetric sensors for monitoring other heavy metals such as mercury, lead, uranium, and arsenic in water. [47][48][49][50] In addition, there are a few reports that AuNP-based colorimetric sensors have been used to detect toxins and pesticides in water. [51][52][53][54] Few studies have reported that optical sensors can detect growth factors such as phosphate ions (Pi) in soil and plants.…”

Section: Ecosystem Monitoring Using Optical Sensormentioning

confidence: 99%

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Sensor design strategy for environmental and biological monitoring

Heo

Sung

Trung

et al. 2023

EcoMat

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Rapid industrial growth has severely impacted ecosystems and aggravated economic and health risks to society. Monitoring of ecosystems is fundamental to our understanding of how ecosystem change impacts resources and is critical for developing data-based sustainability. Thus, the design and development of optimized sensors for ecosystem monitoring have received increasing attention.This review provides a comprehensive overview of systematic sensor design strategies for ecosystem monitoring from the material level to the form factor level. We discuss the fundamental transducing mechanisms of a representative sensor system including optical, electrical, and electrochemical sensors. We then review the sensor interfacing strategy for achieving stable and real-time monitoring of environmental biochemical factors from air, water, soil, and living organisms. Finally, we provide a summary of the current performance and prospects of this state-of-the-art sensor technology and an outlook on opportunities for possible future research directions in this emerging field.

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Section: Optical Sensor Designmentioning

confidence: 99%

Section: Ecosystem Monitoring Using Optical Sensormentioning

confidence: 99%

Sensor design strategy for environmental and biological monitoring

Heo

Sung

Trung

et al. 2023

EcoMat

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“…Heavy metals, due to their toxicity, environmental persistence, and bioaccumulative potential, present a considerable threat to human health and the ecosystem. 1 Among them, the extensive presence of cobalt ions (Co 2+ ) may cause poisoning and various adverse effects on the human body, including diarrhea, asthma, and hypotension. With the continuously increasing release of Co 2+ ions from industry, the sensitive detection of Co 2+ ions at trace levels becomes crucial for the protection of the environment and human health.…”

Section: Introductionmentioning

confidence: 99%

Microflow Synthesis of Fluorescent Carbon Dots for Selective Co²⁺ Detection

Li,

Lin,

Shen

et al. 2024

Ind. Eng. Chem. Res.

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Green continuous synthesis of fluorescent carbon dots (CDs) from natural resources is a promising but challenging alternative to batch processing. Herein, a microflow approach was used to prepare CDs from a lemon juice precursor in one step. Through optimization of the reaction conditions, CDs prepared at 160 °C and 30 min of residence time were selected as a study model. Their structures, morphology, size, chemical composition, and optical properties were comprehensively analyzed. The results show small-sized fluorescent CDs with a high quantum yield and narrow size distribution, which are composed of a mixture of sp 2and sp 3 -hybridized carbon atoms and functional groups. The CDs show excellent photoluminescence properties and fluorescence stability at different pH values (pH: 5−11) and salt levels (KCl concentration: 0.25−4 M). Relying on the high binding affinity toward Co 2+ ions, the microflow-synthesized CDs exhibited good selectivity and sensitivity for Co 2+ sensing, with a detection limit down to 318 nM. The microflow approach was compared with existing techniques for the synthesis of CDs to show its advantages. In addition, a plausible Co 2+ -induced fluorescence quenching process and scale-up strategy for CDs synthesis are discussed.

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“…In particular, colorimetric biosensors are unique owing to their low cost, simplicity, rapidity, and naked-eye observation ability . Various colorimetric methods have been developed for food safety or quality analysis. − Many colorimetric detection kits have been also successfully commercialized, including ELISA kits for food safety application and personal glucose meters. , …”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Design and Application of Nanomaterials-Based Colorimetric Biosensors for Agri-food Safety Analysis

Zhou,

Liu,

et al. 2023

ACS Omega

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A colorimetric sensor detects an analyte by utilizing the optical properties of the sensor unit, such as absorption or reflection, to generate a structural color that serves as the output signal to detect an analyte. Detecting the refractive index of an analyte by recording the color change of the sensor structure on its surface has several advantages, including simple operation, low cost, suitability for onsite analysis, and real-time detection. Colorimetric sensors have drawn much attention owing to their rapidity, simplicity, high sensitivity and selectivity. This Review discusses the use of colorimetric sensors in the food industry, including their applications for detecting food contaminants. The Review also provides insight into the scope of future research in this area.

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Plasma-based instant synthesis of functionalized gold nanoparticles for colorimetric detection of lead ions

Cited by 26 publications

References 37 publications

Sensor design strategy for environmental and biological monitoring

Sensor design strategy for environmental and biological monitoring

Microflow Synthesis of Fluorescent Carbon Dots for Selective Co²⁺ Detection

Recent Advances in Design and Application of Nanomaterials-Based Colorimetric Biosensors for Agri-food Safety Analysis

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Plasma-based instant synthesis of functionalized gold nanoparticles for colorimetric detection of lead ions

Cited by 26 publications

References 37 publications

Sensor design strategy for environmental and biological monitoring

Sensor design strategy for environmental and biological monitoring

Microflow Synthesis of Fluorescent Carbon Dots for Selective Co2+ Detection

Recent Advances in Design and Application of Nanomaterials-Based Colorimetric Biosensors for Agri-food Safety Analysis

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Product

Resources

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Microflow Synthesis of Fluorescent Carbon Dots for Selective Co²⁺ Detection