Synthesis of fluorescent and water-soluble silicon nanoparticles with a high pH response and its application to pH measurement and gastric parietal cell imaging

2020 ◽  
Vol 44 (44) ◽  
pp. 19294-19299
Author(s):  
Stanislas Nsanzamahoro ◽  
Ling Li ◽  
Félicité Pacifique Mutuyimana ◽  
Juanjuan Liu ◽  
Cuiling Ren ◽  
...  
Keyword(s):  
Fluorescence Imaging ◽  
Parietal Cell ◽  
Silicon Nanoparticles ◽  
Cell Imaging ◽  
Water Soluble ◽  
Ph Measurement ◽  
Gastric Parietal Cell ◽  
Yellow Fluorescence ◽  
Ph Response ◽  
Soluble Silicon

In this work, an effective, simple and facile approach was applied to prepare Si NPs, which emitted yellow fluorescence and were used for pH measurement and fluorescence imaging.

Preparation and oxygen sensing properties of water-soluble silicon nanoparticles assembled SBA-15

2019 ◽  
Vol 111 ◽  
pp. 1-6 ◽  
Author(s):  
Ting Gong ◽  
Yanjuan Li ◽  
Bingfu Lei ◽  
Jianle Zhuang ◽  
Yingliang Liu ◽  
...  
Keyword(s):  
Silicon Nanoparticles ◽  
Oxygen Sensing ◽  
Water Soluble ◽  
Sensing Properties ◽  
Soluble Silicon

Highly selective and sensitive detection of catechol by one step synthesized highly fluorescent and water-soluble silicon nanoparticles

2019 ◽  
Vol 281 ◽  
pp. 849-856 ◽  
Author(s):  
Stanislas Nsanzamahoro ◽  
Félicité Pacifique Mutuyimana ◽  
Yangxia Han ◽  
Sudai Ma ◽  
Min Na ◽  
...  
Keyword(s):  
Silicon Nanoparticles ◽  
Water Soluble ◽  
Sensitive Detection ◽  
One Step ◽  
Soluble Silicon

One-Step Synthesis of Superbright Water-Soluble Silicon Nanoparticles with Photoluminescence Quantum Yield Exceeding 80%

2015 ◽  
Vol 2 (16) ◽  
pp. 1500360 ◽  
Author(s):  
Fu-Gen Wu ◽  
Xiaodong Zhang ◽  
Siqi Kai ◽  
Mengyi Zhang ◽  
Hong-Yin Wang ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Silicon Nanoparticles ◽  
Water Soluble ◽  
Photoluminescence Quantum Yield ◽  
One Step ◽  
Soluble Silicon

One-step hydrothermal synthesis of ultrabright water-soluble silicon nanoparticles for folate-receptor-mediated bioimaging

2019 ◽  
Vol 54 (13) ◽  
pp. 9707-9717 ◽  
Author(s):  
Xiaohui Zheng ◽  
Dingfang Zhang ◽  
Zexuan Fan ◽  
Zusheng Huang ◽  
Hongju Mao ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Silicon Nanoparticles ◽  
Folate Receptor ◽  
Water Soluble ◽  
One Step ◽  
Soluble Silicon

Nitrogen and Sulfur Co-doped Fluorescent Carbon Dots for the Detection of Morin and Cell Imaging

2018 ◽  
Vol 15 (1) ◽  
pp. 47-55
Author(s):  
Xuebing Li ◽  
Haifen Yang ◽  
Ning Wang ◽  
Tijian Sun ◽  
Wei Bian ◽  
...  
Keyword(s):  
Microwave Heating ◽  
Fluorescent Probe ◽  
Fluorescence Intensity ◽  
Carbon Dots ◽  
Cell Imaging ◽  
Water Soluble ◽  
Heating Process ◽  
X Ray ◽  
Doped Carbon Dots ◽  
Co Doped

Background: Morin has many pharmacological functions including antioxidant, anticancer, anti-inflammatory, and antibacterial effects. It is commonly used in the treatment of antiviral infection, gastropathy, coronary heart disease and hepatitis B in clinic. However, researches have shown that morin is likely to show prooxidative effects on the cells when the amount of treatment is at high dose, leading to the decrease of intracellular ATP levels and the increase of necrosis process. Therefore, it is necessary to determine the concentration of morin in biologic samples. Method: Novel water-soluble and green nitrogen and sulfur co-doped carbon dots (NSCDs) were prepared by a microwave heating process with citric acid and L-cysteine. The fluorescence spectra were collected at an excitation wavelength of 350 nm when solutions of NSCDs were mixed with various concentrations of morin. Results: The as-prepared NSCDs were characterized by transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. The fluorescence intensity of NSCDs decreased significantly with the increase of morin concentration. The fluorescence intensity of NSCDs displayed a linear response to morin in the concentration 0.10-30 μM with a low detection limit of 56 nM. The proposed fluorescent probe was applied to analysis of morin in human body fluids with recoveries of 98.0-102%. Conclusion: NSCDs were prepared by a microwave heating process. The present analytical method is sensitive to morin. The quenching process between NSCDs and morin is attributed to the static quenching. In addition, the cellular toxicity on HeLa cells indicated that the as-prepared NSCDs fluorescent probe does not show obvious cytotoxicity in cell imaging. Our proposed method possibly opens up a rapid and nontoxic way for preparing heteroatom doped carbon dots with a broad application prospect.

Water-Soluble Fluorescent Probes Based on Dendronized Polyfluorenes for Cell Imaging

2013 ◽  
Vol 34 (6) ◽  
pp. 539-547 ◽  
Author(s):  
Libin Bai ◽  
Wei Li ◽  
Jingtian Chen ◽  
Fuli Bo ◽  
Baoxiang Gao ◽  
...  
Keyword(s):  
Fluorescent Probes ◽  
Cell Imaging ◽  
Water Soluble
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