One Step Chemical Synthesis of Carbon Dot Based Smart Fluorescent Security Ink

In the recent world, there are number of problems related to counterfeit of the different products. There are number of products, which can be easily duplicated by simple processes and the product is accurate and precise. Even the counterfeit of currency is also a main problem in world’s economic. There are number of sectors, which can be effected due to this reason like duplication of electronic products, duplication of food products, duplication of automobile products, duplication of currency, etc. So there are number of anti-counterfeiting technologies available in the market to prevent counterfeit problems. In this paper, it explains to prevent this type of problems with the help of carbon dot based gel formulation, which can be used in different ways. This paper describes the synthesis process and characterization analysis of carbon dot based smart fluorescent security ink to prevent the counterfeit problems. UV-Visspectrophotometer was utilized to differentiate optical properties and fluoroscpectometer was exploited to differentiate fluorescent properties of carbon dots and carbon dot based fluorescent ink. AFM and FTIR were used to analysis the structural properties of carbon dots and carbon dot based fluorescent ink

Download Full-text

EDTA-bonded multi-connected carbon-dots and their Eu3+ complex: preparation and optical properties

RSC Advances ◽

10.1039/c9ra01521c ◽

2019 ◽

Vol 9 (19) ◽

pp. 10645-10650 ◽

Cited By ~ 1

Author(s):

Tianhao Ji ◽

Peidong Fan ◽

Xueli Li ◽

Zhipeng Mei ◽

Yongyun Mao ◽

...

Keyword(s):

Optical Properties ◽

Carbon Dots ◽

Carbon Dot ◽

Complex Preparation

EDTA-bonded multi-connected carbon-dots (EDTA–C-dots) were prepared from carbon dot precursors and complexed with Eu3+ to give Eu3+-coordinated EDTA-bonded multi-connected carbon dots (Eu–EDTA–C-dots).

Download Full-text

In situ synthesis of NIR-light emitting carbon dots derived from spinach for bio-imaging applications

Journal of Materials Chemistry B ◽

10.1039/c7tb00634a ◽

2017 ◽

Vol 5 (35) ◽

pp. 7328-7334 ◽

Cited By ~ 30

Author(s):

Liping Li ◽

Ruiping Zhang ◽

Chunxiang Lu ◽

Jinghua Sun ◽

Lingjie Wang ◽

...

Keyword(s):

Optical Properties ◽

Carbon Dots ◽

In Situ Synthesis ◽

Light Emitting ◽

Nir Light ◽

Bio Imaging ◽

One Step

NIR-light emitting CDs (R-CDs) were prepared using spinach as a precursor by one-step solvothermal treatment. The R-CDs exhibited great optical properties, negligible toxicity, and superior labelling capability both in vitro and in vivo.

Download Full-text

N-Doped carbon dot with surface dominant non-linear optical properties

RSC Advances ◽

10.1039/c6ra18837k ◽

2016 ◽

Vol 6 (98) ◽

pp. 95476-95482 ◽

Cited By ~ 8

Author(s):

Liang Bai ◽

Shi Qiao ◽

Hao Li ◽

Yu Fang ◽

Yanmei Yang ◽

...

Keyword(s):

Optical Properties ◽

Carbonyl Group ◽

Carbon Dots ◽

Nonlinear Optical ◽

Third Order ◽

Carbon Dot ◽

Nlo Property ◽

Linear Optical Properties ◽

Doped Carbon Dots ◽

Order Susceptibility

Nonlinear optical (NLO) property of N-doped carbon dots was investigated by the Z-scan technique. The carbonyl group on the surface of N-CDs plays a key role and has significant impact on their third order susceptibility χ(3).

Download Full-text

Influence of carbon dot synthetic parameters on photophysical and biological properties

Nanoscale ◽

10.1039/d1nr01389k ◽

2021 ◽

Author(s):

Pooria Lesani ◽

Zufu Lu ◽

Gurvinder Singh ◽

Maya Mursi ◽

Mohammad Mirkhalaf ◽

...

Keyword(s):

Hydrothermal Synthesis ◽

Carbon Dots ◽

Biological Properties ◽

Biological Applications ◽

Carbon Dot ◽

One Step

Recently, carbon dots (CDs) have been widely investigated for biological applications in imaging. One-step hydrothermal synthesis is considered to be one of the most promising methods for the synthesis of...

Download Full-text

One-step synthesis of a carbon dot-based fluorescent probe for colorimetric and ratiometric sensing of tetracycline

Analytical Methods ◽

10.1039/d0ay01699c ◽

2020 ◽

Vol 12 (42) ◽

pp. 5097-5102

Author(s):

Jing Xue ◽

Na-Na Li ◽

Dong-Mei Zhang ◽

Cai-Feng Bi ◽

Cun-Gang Xu ◽

...

Keyword(s):

Hydrothermal Method ◽

Fluorescent Probe ◽

Butyric Acid ◽

Carbon Dots ◽

High Selectivity ◽

Fluorescent Sensor ◽

Blue Fluorescence ◽

Carbon Dot ◽

Ratiometric Detection ◽

One Step

Carbon dots (CDs) with blue fluorescence were synthesized by indole-3-butyric acid and l-tryptophan using a one-step hydrothermal method. The CDs were used as a fluorescent sensor with high selectivity for colorimetric and ratiometric detection of tetracycline (TC) in water.

Download Full-text

One-step hydrothermal synthesis and optical properties of PEG-passivated nitrogen-doped carbon dots

RSC Advances ◽

10.1039/c4ra08869g ◽

2015 ◽

Vol 5 (10) ◽

pp. 7395-7400 ◽

Cited By ~ 21

Author(s):

Ben-Xing Zhang ◽

Gang-Yi Zhang ◽

Hui Gao ◽

Shao-Hui Wu ◽

Jian-Hua Chen ◽

...

Keyword(s):

Optical Properties ◽

Hydrothermal Synthesis ◽

Luminescence Intensity ◽

Carbon Dots ◽

Nitrogen Doped ◽

One Step ◽

Doped Carbon Dots ◽

Nitrogen Doped Carbon

PEG-passivation enhanced the luminescence intensity of nitrogen-doped carbon dots markedly.

Download Full-text

One-step hydrothermal synthesis and optical properties of self-quenching-resistant carbon dots towards fluorescent ink and as nanosensors for Fe3+ detection

RSC Advances ◽

10.1039/c8ra10570g ◽

2019 ◽

Vol 9 (15) ◽

pp. 8290-8299 ◽

Cited By ~ 14

Author(s):

Dandan Xu ◽

Fang Lei ◽

Haohong Chen ◽

Luqiao Yin ◽

Ying Shi ◽

...

Keyword(s):

Optical Properties ◽

Citric Acid ◽

Hydrothermal Synthesis ◽

Quantum Yield ◽

Carbon Source ◽

Nitrogen Source ◽

Carbon Dots ◽

Raw Materials ◽

One Pot ◽

One Step

Blue CDs with a quantum yield of 30.21% were successfully synthesized by a simple one-pot hydrothermal treatment using citric acid (carbon source) and polyvinyl pyrrolidone (nitrogen source) as the raw materials towards fluorescent ink and as nanosensors for Fe3+ detection.

Download Full-text

Exploiting deep learning for predictable carbon dot design

Chemical Communications ◽

10.1039/d0cc07882d ◽

2021 ◽

Author(s):

Xiao-Yuan Wang ◽

Bin-Bin Chen ◽

Jie Zhang ◽

Ze-Rui Zhou ◽

Jian Lv ◽

...

Keyword(s):

Neural Network ◽

Optical Properties ◽

Deep Learning ◽

Ultraviolet Irradiation ◽

Carbon Dots ◽

Spectral Properties ◽

Convolution Neural Network ◽

Carbon Dot ◽

Fluorescence Color ◽

Deep Convolution Neural Network

This work developed a multi-layer deep convolution neural network (DCNN) model for predicting the optical properties of carbon dots (CDs), including spectral properties and fluorescence color under ultraviolet irradiation.

Download Full-text