scholarly journals Fluorescent Carbon Dots Ink for Gravure Printing

2019 ◽  
Vol 5 (1) ◽  
pp. 12 ◽  
Author(s):  
Apostolos Koutsioukis ◽  
Vassiliki Belessi ◽  
Vasilios Georgakilas
Keyword(s):  
Present Article ◽  
Carbon Dots ◽  
Gravure Printing ◽  
High Quality ◽  
Carbon Dot ◽  
Water Based ◽  
Fluorescent Carbon Dots ◽  
Effective Water ◽  
Fluorescent Carbon

In the present article, we describe the use of highly fluorescent carbon dots (CDs) for the preparation of an effective water-based carbon dot ink (CD-ink) for gravure printing. Carbon dots were prepared hydrothermally from citrate and triethylenetetramine, and mixed properly with certain resins that are used in gravure inks. The as-produced CD gravure ink was used successfully for printing high quality fluorescent images.

Multifunctional fluorescent carbon dots inhibit the invasiveness of lung cancer cells

2018 ◽  
Vol 42 (18) ◽  
pp. 15311-15314 ◽  
Author(s):  
Xiao Juan Lin ◽  
Xiao Qing Fan ◽  
Sai Jin Xiao ◽  
Yan He ◽  
Wen Jing Qi ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Cancer Cells ◽  
Fluorescent Probe ◽  
Carbon Dots ◽  
Lung Cancer Cells ◽  
Carbon Dot ◽  
New Type ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

A new type of carbon dot (CD) is proposed, which has great potential to be an excellent fluorescent probe for bioimaging in vivo.

A FRET-based carbon dot–MnO2nanosheet architecture for glutathione sensing in human whole blood samples

2015 ◽  
Vol 51 (64) ◽  
pp. 12748-12751 ◽  
Author(s):  
Yuhui Wang ◽  
Kai Jiang ◽  
Jiali Zhu ◽  
Ling Zhang ◽  
Hengwei Lin
Keyword(s):  
Whole Blood ◽  
Carbon Dots ◽  
Blood Samples ◽  
Carbon Dot ◽  
Human Whole Blood ◽  
Donor Acceptor ◽  
Whole Blood Samples ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

A novel FRET model employing fluorescent carbon dots and MnO2nanosheets as donor–acceptor pairs is built for GSH sensing.

scholarly journals Green synthesis of water-soluble fluorescent carbon dots from rosemary leaves: Applications in food storage capacity, fingerprint detection, and antibacterial activity

2020 ◽  
pp. 174751982095382
Author(s):  
Hasan Eskalen ◽  
Mustafa Çeşme ◽  
Süleyman Kerli ◽  
Şükrü Özğan
Keyword(s):  
Standard Deviation ◽  
Polyvinyl Alcohol ◽  
Glass Surface ◽  
Carbon Dots ◽  
Water Soluble ◽  
Carbon Dot ◽  
X Ray ◽  
Fluorescent Carbon Dots ◽  
Fingerprint Detection ◽  
Fluorescent Carbon

Blue fluorescent carbon dots are synthesized via a one-step hydrothermal method using rosemary leaves as a carbon source. The obtained carbon dots are characterized by X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, UV-Vis, FTIR, and fluorescence spectrometry. The results show that carbon dots gave a maximum emission peak at 422 nm when excited at 332 nm. The average particle diameter of the synthesized spherical carbon dots is found to be 16.13 nm with a 4.6-nm standard deviation. The diameters of the produced carbon dots vary, as is evident from standard deviation heights, resulting in multicolor emission spectra. The fruit storage experiment is carried out by investigating the qualitative antioxidant ability of the produced carbon dots. The results obtained for polyvinyl alcohol–carbon dot–coated samples differ remarkably compared to polyvinyl alcohol–coated samples only. The polyvinyl alcohol–carbon dot composition is used in latent fingerprint detection applications. In analyses made on a glass surface, fingerprints cannot be monitored on the glass surface with the polyvinyl alcohol layer under ultraviolet light, while they are observed on the surface covered with the polyvinyl alcohol–carbon dot composition. Moreover, biological activity against Gram-positive, Gram-negative, and yeast strains are investigated.

scholarly journals Intracellular ratiometric temperature sensing using fluorescent carbon dots

2019 ◽  
Vol 1 (1) ◽  
pp. 105-113 ◽  
Author(s):  
Jun-Ray Macairan ◽  
Dilan B. Jaunky ◽  
Alisa Piekny ◽  
Rafik Naccache
Keyword(s):  
Hela Cells ◽  
Carbon Dots ◽  
High Sensitivity ◽  
Temperature Sensing ◽  
Carbon Dot ◽  
Fluorescent Carbon Dots ◽  
Very High ◽  
Fluorescent Carbon

A self-referencing dual fluorescing carbon dot-based nanothermometer can ratiometrically sense thermal events in HeLa cells with very high sensitivity.

Well-controlled layer-by-layer assembly of carbon dot/CdS heterojunctions for efficient visible-light-driven photocatalysis

2015 ◽  
Vol 3 (32) ◽  
pp. 16613-16620 ◽  
Author(s):  
Na-Na Chai ◽  
Hang-Xing Wang ◽  
Chen-Xia Hu ◽  
Qiang Wang ◽  
Hao-Li Zhang
Keyword(s):  
Visible Light ◽  
Carbon Dots ◽  
Layer By Layer ◽  
Carbon Dot ◽  
Layer By Layer Assembly ◽  
Visible Light Driven ◽  
Fluorescent Carbon Dots ◽  
Layer Assembly ◽  
Fluorescent Carbon

Fluorescent carbon dots have attracted great attention, but their application in photocatalysis has not been well explored.

Nitrogen-doped carbon dots from Hutai-8 grape skin and their application in Hg2+ detection

2020 ◽  
Vol 16 ◽  
Author(s):  
Pan Zhang ◽  
Shun-Sheng Zhao ◽  
JiaJia Wang ◽  
Xiang Rong Liu
Keyword(s):  
Heavy Metal ◽  
Carbon Source ◽  
Fluorescence Quenching ◽  
Hydrothermal Method ◽  
Water Samples ◽  
Carbon Dots ◽  
Mercury Ions ◽  
Grape Skin ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

Background: In recent years, environmental pollution and heavy metal pollution caused by rapid urbanization and industrialization have become increasingly serious. Among them, mercury (II) ion (Hg2+) is one of the highly toxic heavy metal ions, and its pollution comes from various natural resources and human activities. Therefore, people attach great importance to the development of analytical methods for effective analysis and sensitive detection of Hg2+ . Objective: Using grape skin as a green and environmental friendly carbon source, to synthesize fluorescent carbon dots, and try to apply them to the detect the concentration of Hg2+ in water. Method: Using "Hutai No. 8" grape skin as carbon source, fluorescent carbon dots were synthesized by one-step hydrothermal method. Structure and fluorescent properties of the carbon dots were tested using TEM, XPS, XRD and other characterization instruments, and their utilization on detection of mercury ions in the actual water samples was explored. Results: The CDs had a particle size of about 4.8 nm and a spherical shape. There are N-H, C-N, C=O and other functional groups on the surface. It was found that Hg2+ has obvious fluorescence quenching effect on CDs, and thus CDs fluorescence quenching method to detect the concentration Hg2+ was established, and the detection limit is 3.7 μM, which could be applied to test the concentration of Hg2+ in water samples. Conclusion: Using grape skin as carbon source, fluorescent carbon dots were successfully synthesized by hydrothermal method. Carbon dots were used to detect mercury ions in water, and a method for detecting mercury ions in actual water samples was established.

Anti-counterfeiting application of fluorescent carbon dots derived from wasted coffee grounds

Optik ◽  
2021 ◽  
pp. 166449
Author(s):  
Woo Tae Hong ◽  
Jin Young Park ◽  
Jong Won Chung ◽  
Hyun Kyoung Yang ◽  
Jae-Yong Je
Keyword(s):  
Carbon Dots ◽  
Coffee Grounds ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

Carbon dots derived from Fusobacterium nucleatum for intracellular determination of Fe3+ and bioimaging both in vitro and in vivo

2021 ◽  
Author(s):  
Lijuan Liu ◽  
Shengting Zhang ◽  
Xiaodan Zheng ◽  
Hongmei Li ◽  
Qi Chen ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Fusobacterium Nucleatum ◽  
Living Cells ◽  
First Time ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

Fusobacterium nucleatum has been employed for the first time to synthesize fluorescent carbon dots which could be applied for the determination of Fe3+ ions in living cells and bioimaging in vitro and in vivo with excellent biocompatibility.

scholarly journals Green fluorescent carbon dots as targeting probes for LED‐dependent bacterial killing

Nano Select ◽  
2021 ◽  
Author(s):  
Jennifer Samphire ◽  
Yuiko Takebayashi ◽  
Stephen A. Hill ◽  
Nicholas Hill ◽  
Kate J. Heesom ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Bacterial Killing ◽  
Green Fluorescent ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon
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