Polycations-functionalized water-soluble gold nanoclusters: a potential platform for simultaneous enhanced gene delivery and cell imaging

Nanoscale ◽  
2013 ◽  
Vol 5 (13) ◽  
pp. 6154 ◽  
Author(s):  
Yu Tao ◽  
Zhenhua Li ◽  
Enguo Ju ◽  
Jinsong Ren ◽  
Xiaogang Qu
Keyword(s):  
Gene Delivery ◽  
Cell Imaging ◽  
Gold Nanoclusters ◽  
Water Soluble

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

Ion-induced discrete charging of immobilized water-soluble gold nanoclusters

2002 ◽  
pp. 1544-1545 ◽  
Author(s):  
Sulay D. Jhaveri ◽  
Daniel A. Lowy ◽  
Edward E. Foos ◽  
Arthur W. Snow ◽  
Mario G. Ancona ◽  
...  
Keyword(s):  
Gold Nanoclusters ◽  
Water Soluble

A water soluble ESIPT-based fluorescent chemodosimeter for the ratiometric detection of palladium ions in aqueous solution and its application in live-cell imaging

2018 ◽  
Vol 42 (19) ◽  
pp. 15587-15592 ◽  
Author(s):  
Jing Huang ◽  
Yu Ding ◽  
Hongyu Fu ◽  
Bo Chen ◽  
Yifeng Han
Keyword(s):  
Aqueous Solution ◽  
Excited State ◽  
Proton Transfer ◽  
Live Cell Imaging ◽  
Cell Imaging ◽  
Intramolecular Proton Transfer ◽  
Live Cell ◽  
Water Soluble ◽  
Ratiometric Detection ◽  
Fluorescent Chemodosimeter

A new Excited State Intramolecular Proton Transfer (ESIPT) based water-soluble fluorescent chemodosimeter for the ratiometric detection of palladium ions has been rationally designed and developed.

scholarly journals Photoluminescent F-doped carbon dots prepared by ring-opening reaction for gene delivery and cell imaging

RSC Advances ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 6053-6062 ◽  
Author(s):  
Tian-Ying Luo ◽  
Xi He ◽  
Ji Zhang ◽  
Ping Chen ◽  
Yan-Hong Liu ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Gene Delivery ◽  
Carbon Dots ◽  
Ring Opening ◽  
Cell Imaging ◽  
Imaging Agents ◽  
Ring Opening Reaction ◽  
Doped Carbon Dots

Carbon dots (CDs) are photoluminescent nanoparticles with distinctive properties, having great potential in nano-biomaterial systems such as gene/drug delivery vectors and cell imaging agents.

Pollutant-Soot-Based Nontoxic Water-Soluble Onion-like Nanocarbons for Cell Imaging and Selective Sensing of Toxic Cr(VI)

2020 ◽  
Vol 3 (6) ◽  
pp. 3906-3913 ◽  
Author(s):  
Gunture ◽  
Chumki Dalal ◽  
Jaidev Kaushik ◽  
Anjali Kumari Garg ◽  
Sumit Kumar Sonkar
Keyword(s):  
Cell Imaging ◽  
Water Soluble

Environmentally benign and cost-effective synthesis of water soluble red light emissive gold nanoclusters: selective and ultra-sensitive detection of mercuric ions

2019 ◽  
Vol 43 (2) ◽  
pp. 900-906 ◽  
Author(s):  
Aniruddha Kundu ◽  
Byeongho Park ◽  
Chaiti Ray ◽  
Juyeong Oh ◽  
Seong Chan Jun
Keyword(s):  
Red Light ◽  
Gold Nanoclusters ◽  
Cost Effective ◽  
Water Soluble ◽  
Environmentally Benign ◽  
Sensitive Detection ◽  
Green Approach ◽  
Effective Synthesis ◽  
Mercuric Ions

A green approach to synthesize red emissive gold nanoclusters for nano-molar detection of mercuric ions.

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