A flexible and wearable PET-based chemiresistive H2S gas sensor modified with MoS2–AgCl@AgNPs nanocomposite for the dynamic monitoring of egg spoilage

Shi, Ning; Yan, Hanlong; Wang, Xiaochan; Liu, Gang; Wang, Jiaxuan; Han, Yu; Duan, Zhibo; Zhao, Guo

doi:10.1016/j.aca.2023.341836

Cited by 7 publications

(3 citation statements)

References 71 publications

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“…Silver chloride (AgCl) is often used in reference electrodes [556][557][558] and as components of nanocomposites. 559 Nanosensors have been tested for their sensitivity in the presence of varying concentrations of sodium chloride (NaCl). 556-558, 560, 561 and as components of nanocomposites.…”

Section: Institute Of Science and Technology (Kist)mentioning

confidence: 99%

“…556-558, 560, 561 and as components of nanocomposites. 559 Nanosensors have been tested for their sensitivity in the presence of varying concentrations of sodium chloride (NaCl). 560,561 Iron chloride (FeCl3) appears in the context of synthesis and may be utilized in the synthesis of both ferric oxide nanoparticles 562,563 and Fe-MOF nanocomposites.…”

Section: Institute Of Science and Technology (Kist)mentioning

confidence: 99%

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Nanoscale materials at work: Mapping emerging applications in energy, medicine, and beyond

Hughes,

Ganesan,

Tenchov

et al. 2024

Preprint

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Since their inception in the early 1960s, the use of nanoscale materials has progressed in leaps and bounds, and their role in diverse fields ranging from human health to energy is undeniable. In this report, we utilize the CAS Content Collection, a vast repository of scientific information extracted from journal and patent publications, to identify emerging topics in this field. This involves understanding trends, such as the growth of certain topics over time, as well as establishing relationships between emerging topics. We achieved this by using a host of strategies including a quantitative natural language processing (NLP) approach to identify 279 emerging topics and sub-topics across three major categories – materials, applications, and properties – by surveying roughly 3 million publications in the nanoscience landscape. This wealth of information has been condensed into several conceptual mind maps and other graphs that provide metrics related to the growth of identified emerging concepts, group them into hierarchical classes, and explore the connections between them. We delved deeper into four major emerging applications of nanoscale materials – drug delivery, sensors, energy, and catalysis – to provide a more comprehensive and detailed picture of the use of nanotechnology in these fields. In addition, we leveraged the CAS registry, consisting of over 250 million substances, to determine and discover substances across varied classes (such as polymers, elements, organic/inorganic molecules) and how they are utilized in the 4 major applications. Our extensive analysis taking advantage of an NLP-based approach along with robust CAS indexing provides valuable insights in the field that we hope can help to inform and drive future research efforts.

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Section: Institute Of Science and Technology (Kist)mentioning

confidence: 99%

Section: Institute Of Science and Technology (Kist)mentioning

confidence: 99%

Nanoscale materials at work: Mapping emerging applications in energy, medicine, and beyond

Hughes,

Ganesan,

Tenchov

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…The activation energy required for the reaction of formaldehyde is lower than that of other VOCs on the MOS surface . Accordingly, some studies succeeded to design the sensors that could exclusively detect formaldehyde by reducing the optimal working temperature of the chemiresistive sensor. , For example, noble metal modification and carbon-based materials of the MOS surface, the construction of organic conductive polymer gas sensors, and transition metal vulcanization modification and photoactivation can significantly reduce the operating temperature of MOS sensors. − Particularly, introducing precious metals, such as Pt, Au, Pd, etc., on the semiconductor surfaces has been typically applied to decrease the optimal working temperature due to a strong metal–support interaction. − As an example, the catalyst effect and unfilled 4d-orbital of Au can significantly alter the surface properties and adsorption-activation ability of MOS-based sensors . Therefore, maximizing efficiency by coupling ultrathin nanosheets with Au nanoparticles is crucial for sensor applications.…”

mentioning

confidence: 99%

Achieving Molecular-Level Selective Detection of Volatile Organic Compounds through a Strong Coupling Effect of Ultrathin Nanosheets and Au Nanoparticles

Ou,

Zhai,

Zhu

et al. 2023

ACS Sens.

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The high density of surface active sites, high efficiency of interfacial carrier transport, and molecular diffusion path determine the efficiency of the electrochemical sensors. The ultrathin structures have atomic-level thickness, carrier migration and heat diffusion are limited in the two-dimensional plane, resulting in excellent conductivity and high carrier concentration. A one-step chemical method is applied to synthesize defect-rich Au-SnO 2 in an ultrathin nanosheet form (thickness of 2−3 nm). The strong interaction between Au and SnO 2 via the Au−O−Sn bonding and the catalytic effect of Au can prolong the service life via decreasing the optimal operating temperature (55 °C) and promote the Au-SnO 2 sensor to exclusively detect formaldehyde at the ppb level (300 ppb). The experimental findings along with theoretical study reveal that Au nanoparticles have a different effect on the competitive adsorption and chemical reaction over the surface of the Au−SnO 2 with formaldehyde and other interfering VOC gases, such as methanol, ethanol, and acetone. This study provides mechanistic insights into the correlation between operating temperature and the performance of the Au−SnO 2 chemiresistive sensor. This work allows the development of highly efficient and stable electrochemical sensors to detect VOC gases at room temperature in the future.

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A fluorescent sensor for rapid and quantitative aquatic bacteria detection based on bacterial reactive oxygen species using Ag@carbon dots composites

Xiao,

Liang,

Tian

et al. 2024

Microchim Acta

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A flexible and wearable PET-based chemiresistive H2S gas sensor modified with MoS2–AgCl@AgNPs nanocomposite for the dynamic monitoring of egg spoilage

Cited by 7 publications

References 71 publications

Nanoscale materials at work: Mapping emerging applications in energy, medicine, and beyond

Nanoscale materials at work: Mapping emerging applications in energy, medicine, and beyond

Achieving Molecular-Level Selective Detection of Volatile Organic Compounds through a Strong Coupling Effect of Ultrathin Nanosheets and Au Nanoparticles

A fluorescent sensor for rapid and quantitative aquatic bacteria detection based on bacterial reactive oxygen species using Ag@carbon dots composites

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