Rapid and green synthesis of highly luminescent MoS2 quantum dots via microwave exfoliation of MoS2 powder and its application as a fluorescence probe for cortisol detection in human saliva

Mohammad-Andashti, Parastou; Ramezani, Zahra; Zare-Shahabadi, Vahid; Torabi, Parviz

doi:10.1016/j.colsurfa.2022.129048

Cited by 20 publications

(13 citation statements)

References 36 publications

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“…5). 72 They experimented with different solvents and microwave setups, finding that the best luminescent MoS 2 QDs were obtained when the powder was dispersed in 1 M NaOH solution and exposed to 850 W microwave radiation in a closed microwave system at 30 bars for 30 minutes. Various microscopic and spectroscopic techniques were used to characterize the as-prepared MoS 2 QDs, which exhibited maximum emission at 413 nm when excited at 310 nm.…”

Section: Cortisol Detection By Chemical Sensorsmentioning

confidence: 99%

Cortisol sensing by optical sensors

Santonocito,

Puglisi,

Cavallaro

et al. 2024

Analyst

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Section: Cortisol Detection By Chemical Sensorsmentioning

confidence: 99%

Cortisol sensing by optical sensors

Santonocito,

Puglisi,

Cavallaro

et al. 2024

Analyst

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“…Microwave exfoliation has been put forward to construct of MoS 2 nanoparticles via exfoliating bulk MoS 2 due to the high synthesis speed (normally in just a couple of minutes) and high yield (Figure A) . Generally, the micromorphology of MoS 2 can be regulated by the microwave power, irradiation time, and temperature.…”

Section: Synthesis Of Typical Mos2 Nanostructuresmentioning

confidence: 99%

Section: Synthesis Of Typical Mos2 Nanostructuresmentioning

confidence: 99%

Molybdenum Disulfide (MoS₂): An Emerging Multifunctional Nanomaterial for Sensing and Removal of Agricultural Contaminants

Dong,

Wei,

Tang

2024

ACS Agric. Sci. Technol.

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The pressure for agriculture security is a problem that affects human community at multiple levels, involving the production of agricultural commodities, the management of agricultural water and soil, and postharvest transport and storage. To date, agriculture security is increasingly becoming a challenge due to the abuse of chemicals, the indiscriminate discharge of wastewater, and the improper storage of agricultural products. As such, the determination and removal of hazardous contaminants in agricultural production chains are indispensable. As a fascinating semiconductor, molybdenum disulfide (MoS2), with controllable structure, appealing photoelectric properties, and superior physicochemical stability, is regarded as a promising material for the control of agricultural contaminants. This critical review summarizes the synthetic strategies for MoS2 and related efforts for agricultural contaminant control. It begins with the synthetic methods of the materials based on different principles. Subsequently, the determination and removal strategies based on MoS2 and its composites are discussed. The third part focuses on the description of MoS2-based platforms for control of different agricultural contaminants (heavy metals, pesticides, mycotoxins, antibiotics, and organic dyes). Finally, the challenges and potential opportunities for MoS2 application in modern agriculture are discussed.

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“…Mohammad-Andashti and co-workers prepared an on-off fluorescent sensor for the detection of cortisol [ 55 ], based on highly luminescent MoS 2 quantum dots (QDs) obtained by simple, environmentally friendly, and green microwave exfoliation ( Figure 5 ). Specifically, high-fluorescence MoS 2 quantum dots were prepared by mixing MoS 2 powder with ammonium hydroxide and deionized water, transferred to a Teflon microwave vessel, hermetically sealed, and placed in a microwave oven.…”

Section: Optical Nanosensorsmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Nanomaterials for Cortisol Sensing

Sfrazzetto

Santonocito

2022

Nanomaterials

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Space represents one of the most dangerous environments for humans, which can be affected by high stress levels. This can lead to severe physiological problems, such as headaches, gastrointestinal disorders, anxiety, hypertension, depression, and coronary heart diseases. During a stress condition, the human body produces specific hormones, such as dopamine, adrenaline, noradrenaline, and cortisol. In particular, the control of cortisol levels can be related to the stress level of an astronaut, particularly during a long-term space mission. The common analytical methods (HPLC, GC-MS) cannot be used in an extreme environment, such as a space station, due to the steric hindrance of the instruments and the absence of gravity. For these reasons, the development of smart sensing devices with a facile and fast analytical protocol can be extremely useful for space applications. This review summarizes the recent (from 2011) miniaturized sensoristic devices based on nanomaterials (gold and carbon nanoparticles, nanotubes, nanowires, nano-electrodes), which allow rapid and real-time analyses of cortisol levels in biological samples (such as saliva, urine, sweat, and plasma), to monitor the health conditions of humans under extreme stress conditions.

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Rapid and green synthesis of highly luminescent MoS2 quantum dots via microwave exfoliation of MoS2 powder and its application as a fluorescence probe for cortisol detection in human saliva

Cited by 20 publications

References 36 publications

Cortisol sensing by optical sensors

Cortisol sensing by optical sensors

Molybdenum Disulfide (MoS₂): An Emerging Multifunctional Nanomaterial for Sensing and Removal of Agricultural Contaminants

Nanomaterials for Cortisol Sensing

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Rapid and green synthesis of highly luminescent MoS2 quantum dots via microwave exfoliation of MoS2 powder and its application as a fluorescence probe for cortisol detection in human saliva

Cited by 20 publications

References 36 publications

Cortisol sensing by optical sensors

Cortisol sensing by optical sensors

Molybdenum Disulfide (MoS2): An Emerging Multifunctional Nanomaterial for Sensing and Removal of Agricultural Contaminants

Nanomaterials for Cortisol Sensing

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Product

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Molybdenum Disulfide (MoS₂): An Emerging Multifunctional Nanomaterial for Sensing and Removal of Agricultural Contaminants