Nucleation of Silica Nanoparticles Measured in Situ during Controlled Supersaturation Increase. Restructuring toward a Monodisperse Nonspherical Shape

Langmuir ◽  
2011 ◽  
Vol 27 (20) ◽  
pp. 12304-12311 ◽  
Author(s):  
Sarah Fouilloux ◽  
Olivier Taché ◽  
Olivier Spalla ◽  
Antoine Thill
Keyword(s):  
Silica Nanoparticles ◽  
Nonspherical Shape

Nitroxide-Mediated Polymerization of Styrene Initiated from the Surface of Silica Nanoparticles. In Situ Generation and Grafting of Alkoxyamine Initiators

2005 ◽  
Vol 38 (4) ◽  
pp. 1099-1106 ◽  
Author(s):  
C. Bartholome ◽  
E. Beyou ◽  
E. Bourgeat-Lami ◽  
P. Chaumont ◽  
F. Lefebvre ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
In Situ Generation ◽  
Nitroxide Mediated Polymerization

Multi-stable fluorescent silica nanoparticles obtained from in situ doping with aggregation-induced emission molecules

2015 ◽  
Vol 3 (45) ◽  
pp. 8775-8781 ◽  
Author(s):  
Yi-Feng Wang ◽  
Jing Che ◽  
Yong-Chao Zheng ◽  
Yuan-Yuan Zhao ◽  
Fei Chen ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
Gastric Fluid ◽  
Silica Matrix ◽  
Simulated Gastric Fluid ◽  
Aggregation Induced Emission ◽  
Fluorescent Silica Nanoparticles ◽  
Photo Stability

Rigid structures provided by silica matrix restrict the intramolecular rotations of AIE molecules, and fluorescence of CWQ-11@SiO2 nanoparticles maintains excellent pH-, viscosity- and photo-stability, especially stable in simulated gastric fluid.

In-Situ Coating of Silica Nanoparticles with Acrylate-Based Polymers

2007 ◽  
Vol 13 (9) ◽  
pp. 459-464 ◽  
Author(s):  
J. Suffner ◽  
G. Schechner ◽  
H. Sieger ◽  
H. Hahn
Keyword(s):  
Silica Nanoparticles ◽  
In Situ Coating

scholarly journals Dynamic Monitoring of Multi-Concentrated Silica Nanoparticles Colloidal Environment with Optical Fiber Sensor

Proceedings ◽  
2019 ◽  
Vol 42 (1) ◽  
pp. 6
Author(s):  
Marco César Prado Soares ◽  
Matheus Santos Rodrigues ◽  
Egont Alexandre Schenkel ◽  
Willian Hideak Arita Silva ◽  
Gabriel Perli ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Silica Nanoparticles ◽  
Optical Fiber Sensor ◽  
Dynamic Monitoring ◽  
Fiber Sensor ◽  
Concentration Gradients ◽  
Elastic Light Scattering ◽  
Reflected Light ◽  
Non Destructive

Colloids are metastable suspensions of particles dispersed in a base fluid, with high scientific and industrial importance, but the monitoring of these systems still demands expensive and large instrumentation. In this research, the measurement of concentration gradients in colloidal silica samples using an optical fiber sensor is reported. Silica nanoparticles (measuring 189 nm) were sedimented in test tubes for creating environments with different concentrations. The fiber probe was immersed in the assessed liquid, resulting in an increase in the dispersion of the reflected light intensity, which is caused by the particles Brownian motion. Therefore, the quasi-elastic light scattering phenomenon related to the diffusivity can be analyzed, providing information about the concentration gradients of the nanosystem with a straightforward, in situ, and non-destructive approach.

Nanosized copper(ii) oxide/silica for catalytic generation of nitric oxide from S-nitrosothiols

2020 ◽  
Vol 8 (19) ◽  
pp. 4267-4277 ◽  
Author(s):  
Kostiantyn Kulyk ◽  
Liana Azizova ◽  
James M. Cunningham ◽  
Lyuba Mikhalovska ◽  
Mykola Borysenko ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Silica Nanoparticles ◽  
Biomedical Materials ◽  
Physiological Conditions

The findings of this study suggest that copper(ii) oxide–silica nanoparticles produce NO from the GSNO species at physiological conditions in situ and could be used for designing biomedical materials with NO generating activity.

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