Construction of a novel "Off-On" fluorescence sensor for highly selective sensing of selenite based on europium ions induced crosslinking of nitrogen-doped carbon dots

Amin, Niloufar; Afkhami, Abbas; Madrakian, Tayyebeh

doi:10.1016/j.jlumin.2017.09.048

Cited by 38 publications

(9 citation statements)

References 58 publications

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“…9 plots the size distribution histogram of CDs-b, which varies from 6 to 18 nm with average diameter of 11.9 nm, lager than that for most CDs ever reported. [37][38][39][40] Unexpectedly, the size of CDs-b outside the dialysis bag is bigger than that of CDs-s inside the dialysis, which is different from what we commonly see. As we all know, dialysis bag is designed according to the molecular weight cut-off to separate the particles with different molecular mass.…”

Section: Optical Properties Of Green Emissive Cds-ocontrasting

confidence: 77%

The synthesis of green fluorescent carbon dots for warm white LEDs

Zheng

Wang

et al. 2018

RSC Adv.

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Section: Optical Properties Of Green Emissive Cds-ocontrasting

confidence: 77%

The synthesis of green fluorescent carbon dots for warm white LEDs

Zheng

Wang

et al. 2018

RSC Adv.

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“…One is the "top-down" approach, arc discharge, laser ablation method, electrochemical etching, and oxidation method, which refers to breaking the large scale of carbon structure into carbon nanoparticles [16][17][18][19][20]. The other method is the "bottom-up" method, which synthesizes carbon dots from molecular precursors, mainly including hydrothermal approach, ultrasonic method, and waveassisted synthesis [21][22][23][24]. Xu [21].…”

Section: Introductionmentioning

confidence: 99%

The Cost-Effective Preparation of Green Fluorescent Carbon Dots for Bioimaging and Enhanced Intracellular Drug Delivery

et al. 2020

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Doxorubicin entrapped carbon dots (DOX-CDs) were prepared for bioimaging and enhanced intracellular drug delivery. The CDs were synthesized via the hydrothermal method using citrate and urea under 200°C for 1 h. Then, DOX was successfully conjugated on the CDs via physicochemical interactions. The DOX-CDs exhibited good crystal structure, remarkable aqueous stability, excellent photoluminescence property, and a high quantum yield of 93%. The fluorescent images revealed that the DOX-CDs could be readily taken up by the cancer cells for cell labeling. Furthermore, endo-lysosomal pH-assisted DOX release behavior was observed from DOX-CDs, and the cytotoxicity of DOX-CDs was confirmed by the MTS assay against H0-8910 ovarian cancer cells. In addition, the CDs indicated bright fluorescent signal in the animal imaging test and demonstrated low toxicity after administration for 7 and 21 days. Therefore, the prepared CDs could be a promising imaging probe for biomedical imaging and intracellular drug delivery.

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“…2+ and D-penicillamine. It is obvious that these studies clearly reveal that the fluorescent effects of CDs from chitin nanofibers was quenched or "turned off" after the addition of Cu 2+ ions, whereas the fluorescent was "turned on" again in the presence of D-penicillamine as the Cu 2+ ions were bound to Dpenicillamine instead of CDs with high affinity [103][104][105]. Therefore, using a specific ligand and competitive binding interaction can be used in the design of very specific sensors for biomedical and environmental applications.…”

Section: Sensor and Biosensorsmentioning

confidence: 93%

Multi-Functional Carbon Dots: A Systematic Overview

Reddy

Gubbiyappa

2021

Int J App Pharm

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Carbon dots (CDs) have emerged as a potential material in the multifarious fields of biomedical applications due to their numerous advantageous properties including tunable fluorescence, water solubility, biocompatibility, low toxicity, small size and ease of modification, inexpensive scale-up production, and versatile conjugation with other targeted nanoparticles. Thus, CDs became a preferable choice in various biomedical applications such as nanocarriers for drugs, therapeutic genes, photo sensitizers, unique electronic, fluorescent, photo luminescent, chemiluminescent, and electro chemiluminescent, drug/gene delivery and optoelectronics properties are what gives them potential in sensing and antibacterial molecules. Further, their potentials have also been verified in multifunctional diagnostic platforms, cellular and bacterial bio-imaging, development of nanomedicine, etc. This present review provides a concise insight into the progress and evolution in the field of carbon dots research with respect to synthesis methods and materials available in bio-imaging, theranostic, cancer, gene therapy, diagnostics, etc. Further, our discussion is extended to explore the role of CDs in nanomedicine and nano theranostic, biotherapy which is the future of biomedicine and also serves to discuss the various properties of carbon dots which allow chemotherapy and gene therapy to be safer and more target-specific, resulting in the reduction of side effects experienced by patients and also the overall increase in patient compliance and quality of life and representative studies on their activities against bacteria, fungi, and viruses reviewed and discussed. This study will thus help biomedical researchers in percuss the potential of CDs to overcome various existing technological challenges.

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Construction of a novel "Off-On" fluorescence sensor for highly selective sensing of selenite based on europium ions induced crosslinking of nitrogen-doped carbon dots

Cited by 38 publications

References 58 publications

The synthesis of green fluorescent carbon dots for warm white LEDs

The synthesis of green fluorescent carbon dots for warm white LEDs

The Cost-Effective Preparation of Green Fluorescent Carbon Dots for Bioimaging and Enhanced Intracellular Drug Delivery

Multi-Functional Carbon Dots: A Systematic Overview

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