pH-induced highly sensitive fluorescence detection of urea and Urease based on carbon dots-based nanohybrids

Author(s):  
Jia An ◽  
Yongqin Hu ◽  
Da Yang ◽  
Yaqin Han ◽  
Jiajing Zhang ◽  
...  
The Analyst ◽  
2021 ◽  
Vol 146 (20) ◽  
pp. 6297-6305
Author(s):  
Qinglan Miao ◽  
Ji Qi ◽  
Yuanyuan Li ◽  
Xinxia Fan ◽  
Dongmei Deng ◽  
...  

A novel paper-based chip that anchored zinc-doped carbon dots was constructed for sensitive and stable fluorescent detection of Cu2+. Zn doping increased the active sites for simplifying the modification of carbon dots.


The Analyst ◽  
2016 ◽  
Vol 141 (22) ◽  
pp. 6344-6352 ◽  
Author(s):  
K. Srinivasan ◽  
K. Subramanian ◽  
K. Murugan ◽  
K. Dinakaran

Highly sensitive detection of mercury(ii) ions by using a fluorescence spectrometer using MoS2 nanosheets and DNA labeled carbon dots is presented.


The Analyst ◽  
2020 ◽  
Vol 145 (1) ◽  
pp. 206-212 ◽  
Author(s):  
Feng Zhang ◽  
Ling Xiang ◽  
Xianghui Xiao ◽  
Xiaoming Chen ◽  
Chunyan Chen ◽  
...  

Because rapid and selective methods for HIV detection are urgently needed, herein, a simple label- and enzyme-free strategy is constructed for fluorescence detection of HIV DNA.


RSC Advances ◽  
2014 ◽  
Vol 4 (87) ◽  
pp. 46437-46443 ◽  
Author(s):  
Hao Li ◽  
Juan Liu ◽  
Manman Yang ◽  
Weiqian Kong ◽  
Hui Huang ◽  
...  

The carbon dots/tyrosinase hybrid as a low-cost fluorescent probe for the detection of dopamine exhibits high sensitivity, stability, and precision.


2021 ◽  
Author(s):  
Yizhong Shen ◽  
Tingting Wu ◽  
Huanhuan Chen ◽  
Yingwang Ye ◽  
Jing-Juan Xu

A dual-recognition carbon dots-based nanoprobe with controllable G-quadruplex release is developed for ratiometric fluorescence detection of pathogenic bacteria in a fast and precise way, which opens a promising avenue for...


2019 ◽  
Vol 891 ◽  
pp. 71-77
Author(s):  
Phitsini Suvarnaphaet ◽  
Wattapong Pinyo ◽  
Suejit Pechprasarn ◽  
Naphat Albutt

Hydrazine hydrate is a highly toxic chemical widely used in agricultural and pharmaceutical industries. Exposure to hydrazine can induce an irritation of respiratory tract, blindness, damage of the DNA and central nervous system. In this paper, we will show the hydrazine hydrate (N2H4) detection using fluorescence carbon nanodots synthesized from mandarin rind, the so-called R-CNDs. Highly sensitive detection can be seen by naked eyes in a fluorescence red-shifting and by analyzing absorption spectra in case of micromolar concentrations of hydrazine hydrate solution.


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