Long-Term Colloidal Stability and Photoluminescence Retention of Lead-Based Quantum Dots in Saline Buffers and Biological Media through Surface Modification

2013 ◽  
Vol 25 (10) ◽  
pp. 2035-2044 ◽  
Author(s):  
Jothirmayanantham Pichaandi ◽  
Keith A. Abel ◽  
Noah J. J. Johnson ◽  
Frank C. J. M. van Veggel
Keyword(s):  
Quantum Dots ◽  
Surface Modification ◽  
Colloidal Stability ◽  
Biological Media

scholarly journals In vivo comparison of the biodistribution and long-term fate of colloids – gold nanoprisms and nanorods – with minimum surface modification

Nanomedicine ◽  
2019 ◽  
Vol 14 (23) ◽  
pp. 3035-3055 ◽  
Author(s):  
Gabriel Alfranca ◽  
Lilianne Beola ◽  
Yanlei Liu ◽  
Lucía Gutiérrez ◽  
Amin Zhang ◽  
...  
Keyword(s):  
Surface Modification ◽  
Colloidal Stability ◽  
Mouse Serum ◽  
Gold Nanoprisms ◽  
Abrupt Changes ◽  
In Vivo Tests ◽  
The Difference ◽  
Surface Changes

Aim: To study the difference in biodistribution of gold nanoprisms (NPr) and nanorods (NR), PEGylated to ensure colloidal stability. Materials & methods: Surface changes were studied for nanoparticles in different media, while the biodistribution was quantified and imaged in vivo. Results: Upon interaction with the mouse serum, NR showed more abrupt changes in surface properties than NPr. In the in vivo tests, while NPr accumulated similarly in the spleen and liver, NR showed much higher gold presence in the spleen than in liver; together with some accumulation in kidneys, which was nonexistent in NPr. NPr were cleared from the tissues 2 months after administration, while NR were more persistent. Conclusion: The results suggest that the differential biodistribution is caused by size-/shape-dependent interactions with the serum.

One-step synthesis of high-quality vanadium disulfide quantum dots for long-term lysosome-targetable imaging

2021 ◽  
pp. 130544
Author(s):  
Dan Yang ◽  
Liwen Chen ◽  
Le Wang ◽  
Zhongjie Cui ◽  
Zhuoqi Wen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
High Quality ◽  
One Step

scholarly journals Engineering Sr-doping for enabling long-term stable FAPb1−xSrxI3 quantum dots with 100% photoluminescence quantum yield

2021 ◽  
Vol 9 (5) ◽  
pp. 1555-1566
Author(s):  
Andrés F. Gualdrón-Reyes ◽  
David F. Macias-Pinilla ◽  
Sofia Masi ◽  
Carlos Echeverría-Arrondo ◽  
Said Agouram ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Toxic Metals ◽  
Environmentally Friendly ◽  
Photoluminescence Quantum Yield ◽  
Improved Performance ◽  
Pb Substitution

The Pb substitution in quantum dots (PQDs) with lesser toxic metals has been widely searched to be environmentally friendly, and be of comparable or improved performance compared to the lead-perovskite.

One-Pot Synthesis of Water Soluble, Extremely Small-Sized Superparamagnetic Magnetite Nanoparticles

2012 ◽  
Vol 531 ◽  
pp. 219-222
Author(s):  
Li Hua Shen ◽  
Ting Shang ◽  
Jun Zhou ◽  
Dong Wang ◽  
Yu Han ◽  
...  
Keyword(s):  
Magnetite Nanoparticles ◽  
Room Temperature ◽  
Colloidal Stability ◽  
Aqueous Media ◽  
Mri Contrast Agents ◽  
Water Soluble ◽  
Potential Candidate ◽  
One Pot ◽  
Mri Contrast

Extremely small-sized superparamagnetic magnetite nanoparticles of 3Cit). The resulting Cit-coated magnetite nanoparticles exhibited long-term colloidal stability in aqueous media without any surface modification. Regarding the magnetic properties, the nanoparticles were superparamagnetic at room temperature, and might be the potential candidate for MRI contrast agents.

Reducing the Photocatalytic Activity of Zinc Oxide Quantum Dots by Surface Modification

2009 ◽  
Vol 92 (9) ◽  
pp. 2083-2088 ◽  
Author(s):  
Jinfeng Wang ◽  
Takuya Tsuzuki ◽  
Lu Sun ◽  
Xungai Wang
Keyword(s):  
Quantum Dots ◽  
Zinc Oxide ◽  
Photocatalytic Activity ◽  
Surface Modification
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