scholarly journals AIE Featured Inorganic–Organic Core@Shell Nanoparticles for High-Efficiency siRNA Delivery and Real-Time Monitoring

Nano Letters ◽  
2019 ◽  
Vol 19 (4) ◽  
pp. 2272-2279 ◽  
Author(s):  
Xuewen He ◽  
Feng Yin ◽  
Dongyuan Wang ◽  
Ling-Hong Xiong ◽  
Ryan T. K. Kwok ◽  
...  
Keyword(s):  
Real Time ◽  
High Efficiency ◽  
Sirna Delivery ◽  
Core Shell ◽  
Real Time Monitoring ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

scholarly journals Fabrication of copper(II)-coated magnetic core-shell nanoparticles Fe3O4@SiO2-2-aminobenzohydrazide and investigation of its catalytic application in the synthesis of 1,2,3-triazole compounds

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
H. Rajabi-Moghaddam ◽  
M. R. Naimi-Jamal ◽  
M. Tajbakhsh
Keyword(s):  
High Efficiency ◽  
Click Reaction ◽  
Magnetic Core ◽  
Core Shell ◽  
Isatoic Anhydride ◽  
Shell Nanoparticles ◽  
Triazole Derivatives ◽  
Catalytic Application ◽  
Ft Ir ◽  
Core Shell Nanoparticles

AbstractIn the present work, an attempt has been made to synthesize the 1,2,3-triazole derivatives resulting from the click reaction, in a mild and green environment using the new copper(II)-coated magnetic core–shell nanoparticles Fe3O4@SiO2 modified by isatoic anhydride. The structure of the catalyst has been determined by XRD, FE-SEM, TGA, VSM, EDS, and FT-IR analyzes. The high efficiency and the ability to be recovered and reused for at least up to 6 consecutive runs are some superior properties of the catalyst.

scholarly journals Self-Sealing Porous Silicon-Calcium Silicate Core-Shell Nanoparticles for Targeted siRNA Delivery to the Injured Brain

2016 ◽  
Vol 28 (36) ◽  
pp. 7962-7969 ◽  
Author(s):  
Jinyoung Kang ◽  
Jinmyoung Joo ◽  
Ester J. Kwon ◽  
Matthew Skalak ◽  
Sazid Hussain ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Calcium Silicate ◽  
Sirna Delivery ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Injured Brain ◽  
Core Shell Nanoparticles

scholarly journals Synthesis and Photocatalytic Activity of Magnetically Recoverable Core-Shell Nanoparticles

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Zhen Peng ◽  
Hua Tang ◽  
Yao Tang ◽  
Ke Fu Yao ◽  
Hong Hong Shao
Keyword(s):  
Photocatalytic Activity ◽  
High Efficiency ◽  
Sol Gel ◽  
High Photocatalytic Activity ◽  
Core Shell ◽  
Oily Wastewater ◽  
Strong Response ◽  
Shell Nanoparticles ◽  
Oil Concentration ◽  
Core Shell Nanoparticles

TiO2/SiO2/Fe3O4(TSF) core-shell nanoparticles with good photocatalytic activity that are capable of fast magnetic separation have been successfully prepared by chemical coprecipitation and two-step sol-gel process. The as-prepared TSF nanoparticles were calcined at high temperature in order to transform the amorphous titanium dioxide into a photoactive crystalline phase. The calcined nanoparticles are composed of a Fe3O4core with a strong response to external magnetic fields, a SiO2intermediary layer, and a TiO2outshell. Vibration sample magnetometer (VSM) analysis confirms the superparamagnetism of calcined nanoparticles, which can enhance the recoverable properties of the novel photocatalyst. When the TiO2/SiO2/Fe3O4core-shell nanoparticles are added to the crude oily wastewater, they exhibit high photocatalytic activity in the degradation of crude oily wastewater. The oil concentration could be reduced to lower than 30 ppm within 20 minutes for the case of initial oil concentration less than 350 ppm. It has been found that the TSF nanoparticles could be easily separated from the wastewater and withdrawn by using an external magnetic field. The recovered TSF nanoparticles possess high efficiency in the degradation of crude oily wastewater even after three times successive reuse. The present results indicate that TSF core-shell nanoparticles possess great application perspectives in the degradation of crude oily wastewater.

Real-Time Imaging of the Formation of Au–Ag Core–Shell Nanoparticles

2016 ◽  
Vol 138 (16) ◽  
pp. 5190-5193 ◽  
Author(s):  
Shu Fen Tan ◽  
See Wee Chee ◽  
Guanhua Lin ◽  
Michel Bosman ◽  
Ming Lin ◽  
...  
Keyword(s):  
Real Time ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Real Time Imaging ◽  
Core Shell Nanoparticles

scholarly journals NIR-II Upconversion Photoluminescence of Er3+ Doped LiYF4 and NaY(Gd)F4 Core-Shell Nanoparticles

2021 ◽  
Vol 9 ◽  
Author(s):  
Qilong Feng ◽  
Wenjing Zheng ◽  
Jie Pu ◽  
Qiaoli Chen ◽  
Wei Shao
Keyword(s):  
Near Infrared ◽  
High Efficiency ◽  
Protective Layer ◽  
Luminescent Properties ◽  
Core Shell ◽  
Potential Candidate ◽  
Shell Nanoparticles ◽  
Surface Luminescence ◽  
The Difference ◽  
Core Shell Nanoparticles

The availability of colloidal nano-materials with high efficiency, stability, and non-toxicity in the near infrared-II range is beneficial for biological diagnosis and therapy. Rare earth doped nanoparticles are ideal luminescent agents for bio-applications in the near infrared-II range due to the abundant energy level distribution. Among them, both excitation and emission range of Er3+ ions can be tuned into second biological window range. Herein, we report the synthesis of ∼15 nm LiYF4, NaYF4, and NaGdF4 nanoparticles doped with Er3+ ions and their core-shell structures. The luminescent properties are compared, showing that Er3+ ions with single-doped LiYF4 and NaYF4 nanoparticles generate stronger luminescence than Er3+ ions with doped NaGdF4, despite the difference in relative intensity at different regions. By epitaxial growth an inert homogeneous protective layer, the surface luminescence of the core-shell structure is further enhanced by about 5.1 times, 6.5 times, and 167.7 times for LiYF4, NaYF4, and NaGdF4, respectively. The excellent luminescence in both visible and NIR range of these core-shell nanoparticles makes them potential candidate for bio-applications.

High efficiency reductive degradation of a wide range of azo dyes by SiO 2 -Co core-shell nanoparticles

2016 ◽  
Vol 199 ◽  
pp. 504-513 ◽  
Author(s):  
Yan Zhang ◽  
Fan Gao ◽  
Bridgid Wanjala ◽  
Zhiyang Li ◽  
George Cernigliaro ◽  
...  
Keyword(s):  
Azo Dyes ◽  
High Efficiency ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Reductive Degradation ◽  
Wide Range ◽  
Core Shell Nanoparticles
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