A fluorimetric and colorimetric dual-signal sensor for hydrogen peroxide and glucose based on the intrinsic peroxidase-like activity cobalt and nitrogen co-doped carbon dots and inner filter effect

2021 ◽  
Author(s):  
Guo-Qi Zhang ◽  
Yong-Sheng Li ◽  
Wei-Ping Liu ◽  
Xiu-Feng Gao

Herein, cobalt and nitrogen co-doped carbon dots (Co-N-CDs) were fabricated via a one-pot hydrothermal approach. The obtained Co-N-CDs displayed peroxidase-like activity and fluorescence properties. it could catalyze the oxidization of...

RSC Advances ◽  
2018 ◽  
Vol 8 (55) ◽  
pp. 31793-31802 ◽  
Author(s):  
Bin Wu ◽  
Xiaofeng Shi ◽  
Wei Han ◽  
Taishan Wang ◽  
Chunru Wang ◽  
...  

An “on–off–on” fluorescent phosphorus/nitrogen co-doped carbon dot (PNCD) probe was explored for the determination of Cr(vi) and dopamine resulting from the inner filter effect (IFE).


2018 ◽  
Vol 10 (33) ◽  
pp. 4085-4093 ◽  
Author(s):  
Zhu Han ◽  
Yuwei Long ◽  
Shuang Pan ◽  
Hui Liu ◽  
Jidong Yang ◽  
...  

In this paper, carbon dots (CDs) emitting blue fluorescence were prepared using ammonium citrate and ammonium thiocyanate through a low-cost hydrothermal approach.


RSC Advances ◽  
2015 ◽  
Vol 5 (115) ◽  
pp. 95054-95060 ◽  
Author(s):  
Qingyan Zhang ◽  
Caihong Zhang ◽  
Zengbo Li ◽  
Jinyin Ge ◽  
Chenzhong Li ◽  
...  

A facile, economical and green one-step hydrothermal method for N-doped CDs was presented by using citric acid as carbon source and urea as nitrogen source. The fluorescence of N-doped CDs quenched dramatically from curcumin via inner filter effect.


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