Facile synthesis of fluorescence carbon dots from sweet potato for Fe3+ sensing and cell imaging

Shen, Jie; Shang, Shuo; Chen, Xiuying; Wang, Dan; Cai, Yan

doi:10.1016/j.msec.2017.03.178

Cited by 297 publications

(127 citation statements)

References 65 publications

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“…synthesized BCDs from goose feathers by a microwave‐hydrothermal treatment. As label‐free PL probes, BCDs prepared from goose feather can detect Fe 3+ sensitively and selectively with a low detection limit of 196 nmoL•L ‐1 m. Shen et al . performed a facile synthesis of fluorescence BCDs from sweet potato using a hydrothermal treatment.…”

Section: Applications Of Bcdsmentioning

confidence: 99%

Biomass‐Derived Carbon Dots and Their Applications

Meng

Bai

Wang

et al. 2019

Energy & Environ Materials

372

179

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Carbon dots (CDs) have received much attention due to their superior properties including water solubility, low toxicity, biocompatibility, small size, fluorescence, and ease of modification. The use of a more environmentally friendly method to prepare high‐quality CDs is still an urgent question waiting for solve. The use of renewable, inexpensive, and green biomass resources not only meets the urgent need for large‐scale synthesis biomass CDs (BCDs), but also promotes the development of sustainable applications. In this article, we summarize the representative methods for synthesizing BCDs in green and simple ways using biomass as a carbon source, including hydrothermal carbonization, and microwave, pyrolysis. The prepared BCDs have a uniform particle size distribution and a relatively high throughput, which provide a method to scale up industrial production. Moreover, the integration of specific optical properties, that is, tunable photoluminescence and up‐photoluminescence, has led to remarkable use in bioimaging, sensing, and drug delivery. But the current review is not particularly comprehensive for BCDs. Therefore, we now provide a review focusing on the synthesis, properties, and recent advances in BCDs in biosensing, bioimaging, optoelectronics, and catalytic applications.

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Section: Applications Of Bcdsmentioning

confidence: 99%

Biomass‐Derived Carbon Dots and Their Applications

Meng

Bai

Wang

et al. 2019

Energy & Environ Materials

372

179

View full text Add to dashboard Cite

show abstract

“…CDs also possess special mellifluous traits such as photoluminescence, low toxicity, water solubility, high chemical stability, easy functionalization, and impressive biocompatibility . These properties have been used extensively in various fields such as electrochemistry, wastewater treatment, photocatalysis, bio‐imaging, light emitting devices, sensing, etc.…”

Section: Introductionmentioning

confidence: 99%

“…For Hg 2+ assaying, CDs from pomelo peel and cucumber have been used . It is also reported that CDs from sweet potatoes and banana peels can be used for Fe 3+ sensing . CDs can sense Fe 3+ , Cu 2+ , and Hg 2+ due to the presence of hydroxyl groups, amino groups, and carboxyl groups, respectively .…”

Section: Introductionmentioning

confidence: 99%

A facile synthesis of nontoxic luminescent carbon dots for detection of chromium and iron in real water sample and bio‐imaging

et al. 2019

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In this study, we have reported the synthesis of luminescent carbon dots (CDs) from indigenous potato sources by simple heating reactions. The as‐synthesized CDs exhibited an average size of ~ 5.97 nm with a quantum yield (QY) of 6.08%. Furthermore, the CDs possessed high water‐solubility, possibly due to the presence of ─COOH and ─OH groups on their surfaces. The quenching of luminescence of the CDs specifically by Cr6+ and Fe3+ ions was used to detect chromium and iron in the water sample. The minimum limit of detection (LOD) for Cr6+ and Fe3+ ions was found to be 0.012 μM and 0.000549 μM, respectively, in a linear range of 0.5 μM‐100 μM and 0.5 μM‐5 μM for Cr6+ and Fe3+, respectively, which was well below the concentration specified by WHO. We used our sensing system to detect the metal ions in water from the Brahmaputra River as well as in tannery water. In addition, the MTT‐based cell viability experiments showed that the CDs were nontoxic within 200 μg/mL. High quantum yield and the easy uptake of CDs enabled the quick labelling of cytoplasm of the HeLa cells, which can be further attributed to bioimaging applications.

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“…In recent years, CDs, a superior carbon material, has received tremendous attention due to its unique optical, low photobleaching property, physico‐chemical and photochemical properties, good biocompatibility, low toxicity and easy to synthesize . Until now, many efforts have been introduced to enhance the fluorescence property by tuning the optical property of the synthesized CDs .…”

Section: Introductionmentioning

confidence: 99%

Fabrication of nitrogen‐ and phosphorous‐doped carbon dots by the pyrolysis method for iodide and iron(III) sensing

et al. 2017

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A facile and novel strategy to synthesize nitrogen- and phosphorous-doped carbon dots (NPCDs) by single step pyrolysis method is described here. Citric acid is used as carbon source and di-ammonium hydrogen phosphate is used as both nitrogen and phosphorous sources, respectively. Through the extensive study on optical properties, morphology and chemical structures of the synthesized NPCDs, it is found that as-synthesized NPCDs exhibited good excitation-dependent luminescence property, spherical morphology and high stability. The obtained NPCDs are stable in aqueous medium and possess a quantum yield of 10.58%. In this work, a new assay method is developed to detect iodide ions using the synthesized NPCDs. Here, the inner filter effect is applied to detect the iodide ion and exhibited a wide linear response concentration range (10-60 μM) with a limit of detection (LOD) of 0.32 μM. Furthermore, the synthesized NPCDs are used for the selective detection of iron(III) (Fe ) ions and cell imaging. Fe ions sensing assay shows a detection range from 0.2 to 30 μM with a LOD of 72 nM. As an efficient photoluminescence sensor, the developed NPCDs have an excellent biocompatibility and low cytotoxicity, allowing Fe ion detection in HeLa cells.

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Facile synthesis of fluorescence carbon dots from sweet potato for Fe3+ sensing and cell imaging

Cited by 297 publications

References 65 publications

Biomass‐Derived Carbon Dots and Their Applications

Biomass‐Derived Carbon Dots and Their Applications

A facile synthesis of nontoxic luminescent carbon dots for detection of chromium and iron in real water sample and bio‐imaging

Fabrication of nitrogen‐ and phosphorous‐doped carbon dots by the pyrolysis method for iodide and iron(III) sensing

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