Nitrogen-Doped Carbon Quantum Dot Stabilized Magnetic Iron Oxide Nanoprobe for Fluorescence, Magnetic Resonance, and Computed Tomography Triple-Modal In Vivo Bioimaging

2016 ◽  
Vol 26 (47) ◽  
pp. 8694-8706 ◽  
Author(s):  
Xiaoli Liu ◽  
Hui Jiang ◽  
Jing Ye ◽  
Chunqiu Zhao ◽  
Shengping Gao ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Iron Oxide ◽  
Magnetic Resonance ◽  
Quantum Dot ◽  
Magnetic Iron Oxide ◽  
Nitrogen Doped ◽  
Carbon Quantum Dot ◽  
Nitrogen Doped Carbon

scholarly journals Green preparation of nitrogen doped carbon quantum dot films as fluorescent probes

RSC Advances ◽  
2017 ◽  
Vol 7 (88) ◽  
pp. 56087-56092 ◽  
Author(s):  
Yanfei He ◽  
Lina Liang ◽  
Qinghao Liu ◽  
Jinchun Guo ◽  
Dong Liang ◽  
...  
Keyword(s):  
Carbon Source ◽  
Quantum Dot ◽  
Nitrogen Source ◽  
Fluorescence Intensity ◽  
Fluorescent Probes ◽  
High Sensitivity ◽  
Nitrogen Doped ◽  
Carbon Quantum Dot ◽  
Sensitivity And Selectivity ◽  
Nitrogen Doped Carbon

A facile and economical hydrothermal method was developed for the preparation of highly luminescent NCDs by using cabbage juice as carbon source and PP as nitrogen source. The fluorescence intensity of CA-NCDs was quenched by Fe3+ with high sensitivity and selectivity.

Visible-light-driven hydrogen evolution using nitrogen-doped carbon quantum dot-implanted polymer dots as metal-free photocatalysts

2021 ◽  
Vol 283 ◽  
pp. 119659
Author(s):  
Mohamed Hammad Elsayed ◽  
Jayachandran Jayakumar ◽  
Mohamed Abdellah ◽  
Tharwat Hassan Mansoure ◽  
Kaibo Zheng ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Carbon Quantum Dot ◽  
Polymer Dots ◽  
Visible Light Driven ◽  
Nitrogen Doped Carbon

scholarly journals Precise Study on Size-Dependent Properties of Magnetic Iron Oxide Nanoparticles for In Vivo Magnetic Resonance Imaging

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Ling Chen ◽  
Jun Xie ◽  
Haoan Wu ◽  
Jianzhong Li ◽  
Zhiming Wang ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Properties ◽  
Iron Oxide ◽  
Magnetic Resonance ◽  
Contrast Agent ◽  
Mri Contrast Agent ◽  
Iron Oxide Nanoparticle ◽  
Resonance Imaging ◽  
Magnetic Iron Oxide

Developing a biocompatible contrast agent with high stability and favorable magnetism for sensitive detection of malignant tumors using magnetic resonance imaging (MRI) remains a great demand in clinical. Nowadays, the fine control of magnetic iron oxide nanoparticle (MION) sizes from a few nanometers to dozens of nanometers can be realized through a thermal decomposition method of iron precursors. This progress allows us to research accurately on the size dependence of magnetic properties of MION, involving saturation magnetization (Ms), specific absorption rate (SAR), and relaxivity. Here, we synthesized MION in a size range between 14 and 26 nm and modified them with DSPE-PEG2000 for biomedical use. The magnetic properties of PEGylated MION increased monotonically with MION size, while the nonspecific uptake of MION also enhanced with size through cell experiments. The MION with the size of 22 nm as a T2-weighted contrast agent presented the best contrast-enhancing effect comparing with other sizes in vivo MRI of murine tumor. Therefore, the MION of 22 nm may have potential to serve as an ideal MRI contrast agent for tumor detection.

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