Heavy metal ion detection using green precursor derived carbon dots

Torres, Simei; Bogireddy, Naveen Kumar Reddy; Kaur, Inderdeep; Batra, V.K.; Agarwal, Vivechana

doi:10.1016/j.isci.2022.103816

Cited by 62 publications

(19 citation statements)

References 252 publications

(555 reference statements)

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“…It is a simple one‐step process that requires less than 10 min. [ 100 ] Energy transfers among carbon nanoparticles and metal via preferential exchanges caused by reactive groups and surface traps are the key characteristics of PL quenching. A fluorescence sensor was designed using FRET, photoinduced transfer of electrons, inner filter effect, agglomeration, fluorescence quenching, and other detection system processes based on attenuation or fluorescence improvement.…”

Section: Applications Of Fluorescent Carbon Nanomaterials For Food Co...mentioning

confidence: 99%

Potentialities of fluorescent carbon nanomaterials as sensor for food analysis

et al. 2022

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Food safety and quality are among the most significant and prevalent research areas worldwide. The fabrication of appropriate technical procedures or devices for the recognition of hazardous features in foods is essential to safeguard food materials. In the recent era, developing high‐performance sensors based on carbon nanomaterial for food safety investigation has made noteworthy progress. Hence this review briefly highlights the different detection approaches (colorimetric sensor, fluorescence sensor, surface‐enhanced Raman scattering, surface plasmon resonance, chemiluminescence, and electroluminescence), functional carbon nanomaterials with various dimensions (quantum dots, graphene quantum dots) and detection mechanisms. Further, this review emphasizes the assimilation of carbon nanomaterials with optical sensors to identify multiple contaminants in food products. The insights of carbon‐based nanomaterials optical sensors for pesticides and insecticides, toxic metals, antibiotics, microorganisms, and mycotoxins detection are described in detail. Finally, the opportunities and future perspectives of nanomaterials‐based optical analytical approaches for detecting various food contaminants are discussed.

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Section: Applications Of Fluorescent Carbon Nanomaterials For Food Co...mentioning

confidence: 99%

Potentialities of fluorescent carbon nanomaterials as sensor for food analysis

et al. 2022

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“…17 Besides, the raw materials of CDs also come from a wide range. [18][19][20] Utilizing cheap and accessible biomass as raw materials to produce CDs can easily and in an eco-friendly manner convert a low-value material into a valuable one. 21 Thus, it would be highly desirable to explore eco-friendly biomass for the construction of novel CDs based on the microwave method.…”

Section: Introductionmentioning

confidence: 99%

Green and rapid synthesis of biomass carbon dot-based fluorescence sensing for the sensitive determination of oxytetracycline

Wu²,

Zhang

et al. 2023

Anal. Methods

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“…CDs find applications in a wide range, including in catalysis for improving air pollution, such as photocatalysis [ 8 , 9 , 10 ]. The turn-off and turn-on properties of CDs proposed the use of CDs in detecting heavy metal ions and small molecules and dyes in polluted water [ 11 , 12 , 13 ]. CDs are employed as electrocatalysts for the evolution of hydrogen, oxygen, carbon reduction, supercapacitors, and batteries [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Water Soluble PMPC-Derived Bright Fluorescent Nitrogen/Phosphorous-Doped Carbon Dots for Fluorescent Ink (Anti-Counterfeiting) and Cellular Multicolor Imaging

Perumal

Atchudan

Edison³

et al. 2023

Polymers

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Here, a simple one-step hydrothermal-assisted carbonization process was adopted for the preparation of nitrogen/phosphorous-doped carbon dots from a water-soluble polymer, poly 2-(methacryloyloxy)ethyl phosphorylcholine (PMPC). By the free-radical polymerization method, PMPC was synthesized using 2-(methacryloyloxy)ethyl phosphorylcholine (MPC) and 4,4′-azobis (4-cyanovaleric acid). The water-soluble polymers, PMPC, that have nitrogen/phosphorus moieties are used to prepare carbon dots (P-CDs). The resulting P-CDs were thoroughly characterized by various analytical techniques such as field emission-scanning electron microscopy (FESEM) with energy-dispersive X-ray spectroscopy (EDS), high-resolution transmittance electron microscopy (HRTEM), X-ray diffraction (XRD), Raman spectroscopy, attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), Ultraviolet-visible (UV-vis) spectroscopy and fluorescence spectroscopy to determine their structural and optical properties. The synthesized P-CDs displayed bright/durable fluorescence, were stable for long periods, and confirmed the enrichment of functionalities including oxygen, phosphorus, and nitrogen heteroatoms in the carbon matrix. Since the synthesized P-CDs showed bright fluorescence with excellent photostability, excitation-dependent fluorescence emission, and excellent quantum yield (23%), it has been explored as a fluorescent (security) ink for drawing and writing (anti-counterfeiting). Further, cytotoxicity study results advised for biocompatibility and thus were used for cellular multicolor imaging in nematodes. This work not only demonstrated the preparation of CDs from polymers that can be used as advanced fluorescence ink, a bioimaging agent for anti-counterfeiting, and cellular multicolor imaging candidate, but additionally prominently opened a new perspective on the bulk preparation of CDs simply and efficiently for various applications.

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Heavy metal ion detection using green precursor derived carbon dots

Cited by 62 publications

References 252 publications

Potentialities of fluorescent carbon nanomaterials as sensor for food analysis

Potentialities of fluorescent carbon nanomaterials as sensor for food analysis

Green and rapid synthesis of biomass carbon dot-based fluorescence sensing for the sensitive determination of oxytetracycline

Water Soluble PMPC-Derived Bright Fluorescent Nitrogen/Phosphorous-Doped Carbon Dots for Fluorescent Ink (Anti-Counterfeiting) and Cellular Multicolor Imaging

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