Non-toxic fluorescent molecularly imprinted hydrogel based on wood-derived cellulose nanocrystals and carbon dots for efficient sorption and sensitive detection of tetracycline

2022 ◽  
Vol 177 ◽  
pp. 114528
Author(s):  
Qiuyan Luo ◽  
Shan He ◽  
Yifeng Huang ◽  
Zihua Lei ◽  
Jianzheng Qiao ◽  
...  
Keyword(s):  
Cellulose Nanocrystals ◽  
Carbon Dots ◽  
Sensitive Detection ◽  
Molecularly Imprinted

A biomimetic fluorescent nanosensor based on imprinted polymers modified with carbon dots for sensitive detection of alpha-fetoprotein in clinical samples

The Analyst ◽  
2019 ◽  
Vol 144 (22) ◽  
pp. 6760-6772 ◽  
Author(s):  
Chenghong Sun ◽  
Linli Pan ◽  
Lei Zhang ◽  
Jiaojiao Huang ◽  
Dandan Yao ◽  
...  
Keyword(s):  
Molecularly Imprinted Polymers ◽  
Carbon Dots ◽  
Alpha Fetoprotein ◽  
Sensitive Detection ◽  
Clinical Samples ◽  
Molecularly Imprinted ◽  
Imprinted Polymers

A biomimetic fluorescent nanosensor based on molecularly imprinted polymers modified with carbon dots (CDs@MIPs) has been prepared for rapid, selective and sensitive detection of alpha-fetoprotein (AFP) in clinical samples.

scholarly journals Effective Adsorption and Sensitive Detection of Cr(VI) by Chitosan/Cellulose Nanocrystals Grafted with Carbon Dots Composite Hydrogel

Polymers ◽  
2021 ◽  
Vol 13 (21) ◽  
pp. 3788
Author(s):  
Hua Zeng ◽  
Zhiyuan Hu ◽  
Chang Peng ◽  
Lei Deng ◽  
Suchun Liu
Keyword(s):  
Cellulose Nanocrystals ◽  
Carbon Dots ◽  
Composite Hydrogel ◽  
Economic Feasibility ◽  
Sensitive Detection ◽  
Quantitative Detection ◽  
Maximum Adsorption Capacity ◽  
Public Attention ◽  
Adsorption Sites ◽  
Sorption Ability

Due to its lethal effect on the human body and other creatures, Cr(VI) ions have attained widespread public attention, and an effective adsorbent for removing Cr(VI) ions is vital. Chitosan (CS)/cellulose nanocrystals grafted with carbon dots (CNCD) composite hydrogel with strong sorption ability and sensitive detection ability for Cr(VI) was formed. The cellulose nanocrystals (CN) offered a natural skeleton for assembling 3D porous structures, and then improved the sorption ability for Cr(VI); moreover, carbon dots (CD) acted as a fluorescent probe for Cr(VI) and provided Cr(VI) adsorption sites. With a maximum adsorption capacity of 217.8 mg/g, the CS/CNCD composite hydrogel exhibited efficient adsorption properties. Meanwhile, with a detection limit of 0.04 μg/L, this hydrogel was used for selective and quantitative detection of Cr(VI). The determination of Cr(VI) was based on the inner filter effect (IFE) and static quenching. This hydrogel retained its effective adsorption ability even after four repeated regenerations. Furthermore, the economic feasibility of the CS/CNCD composite hydrogel over activated carbon was confirmed using cost analysis. This study provided one new method for producing low-cost adsorbents with effective sorption and sensitive detection for Cr(VI).

Convenient and sensitive detection of norfloxacin with fluorescent carbon dots

2014 ◽  
Vol 2 (45) ◽  
pp. 7964-7970 ◽  
Author(s):  
Manman Yang ◽  
Hao Li ◽  
Juan Liu ◽  
Weiqian Kong ◽  
Shunyan Zhao ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Sensitive Detection ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

In situ controllable synthesis of graphene oxide-based ternary magnetic molecularly imprinted polymer hybrid for efficient enrichment and detection of eight microcystins

2015 ◽  
Vol 3 (45) ◽  
pp. 23042-23052 ◽  
Author(s):  
Sheng-Dong Pan ◽  
Xiao-Hong Chen ◽  
Xiao-Ping Li ◽  
Mei-Qiang Cai ◽  
Hao-Yu Shen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Molecularly Imprinted Polymer ◽  
Sensitive Detection ◽  
Imprinted Polymer ◽  
Controllable Synthesis ◽  
Molecularly Imprinted ◽  
Magnetic Molecularly Imprinted Polymer ◽  
Highly Efficient ◽  
Polymer Hybrid

A novel graphene oxide-based ternary magnetic molecularly imprinted polymer hybrid was synthesized for highly efficient enrichment and sensitive detection of microcystins.

Carbon dots isolated from chromatographic fractions for sensing applications

RSC Advances ◽  
2015 ◽  
Vol 5 (129) ◽  
pp. 106838-106847 ◽  
Author(s):  
Lizhen Liu ◽  
Feng Feng ◽  
Man Chin Paau ◽  
Qin Hu ◽  
Yang Liu ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Fluorescent Probes ◽  
Carbon Dots ◽  
Sensitive Detection ◽  
Sensing Applications

An as-synthesised C-dots sample derived from acetic acid, NAC and P2O5 can be separated and fractionated into various C-dots species by HPLC. The brighter C-dots fractions can be used as fluorescent probes for sensitive detection of Fe3+ and Hg2+.

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