scholarly journals Dual-stage Release of Ketoprofen from Electrosprayed Core–Shell Hybrid Polyvinyl Pyrrolidone/Ethyl Cellulose Nanoparticles

2020 ◽  
Author(s):  
Pu Wang ◽  
Meng-long Wang ◽  
Xi Wan ◽  
Honglei Zhou ◽  
Heng Zhang ◽  
...  
Keyword(s):  
Ethyl Cellulose ◽  
Polyvinyl Pyrrolidone ◽  
Core Shell ◽  
Cellulose Nanoparticles ◽  
Dual Stage

Size and Optically Tunable Ethyl Cellulose Nanoparticles as Carriers for Organic UV Filters

ChemNanoMat ◽  
2018 ◽  
Vol 4 (3) ◽  
pp. 301-308 ◽  
Author(s):  
Douglas R. Hayden ◽  
Heleen V. M. Kibbelaar ◽  
Arnout Imhof ◽  
Krassimir P. Velikov
Keyword(s):  
Ethyl Cellulose ◽  
Uv Filters ◽  
Cellulose Nanoparticles ◽  
Organic Uv Filters

Core–shell nanoparticles by silica coating of metal oxides in a dual-stage hydrothermal flow reactor

2016 ◽  
Vol 52 (16) ◽  
pp. 3434-3437 ◽  
Author(s):  
H. L. Hellstern ◽  
A. Mamakhel ◽  
M. Bremholm ◽  
B. B. Iversen
Keyword(s):  
Continuous Flow ◽  
Flow Reactor ◽  
Synthesis Method ◽  
Silica Coating ◽  
Core Shell ◽  
Narrow Size Distribution ◽  
Shell Nanoparticles ◽  
Coated Nanoparticles ◽  
Dual Stage ◽  
Core Shell Nanoparticles

A green, fast, high-throughput, continuous-flow hydrothermal synthesis method is explored for preparation of silica coated nanoparticles with narrow size distribution.

Preparation and Characterization of Ethyl Cellulose-Based Microcapsules Containing Argy Wormwood Solution

2013 ◽  
Vol 448-453 ◽  
pp. 98-101
Author(s):  
Ping Jiang ◽  
Du Xin Li ◽  
Yue Jun Liu
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Ethyl Cellulose ◽  
Chemical Structure ◽  
Controlled Delivery ◽  
Core Shell ◽  
Sem Images ◽  
Optical Micrograph ◽  
Spherical Structures

The biodegradable microcapsules based ethyl cellulose (EC) for a controlled delivery of Argy Wormwood solution (AWS) were prepared by emulsionsolvent evaporation method using ethyl acetate as solvent. This study examined the effect of the ratios of core to shell on the size of microcapsules. SEM images of microcapsules showed uniform spherical structures with smooth surfaces with a particle size distribution of 100nm2μm. Core-shell, hetero-structures were confirmed using optical micrograph. The chemical structure of the microcapsules was determined by FTIR.

Ethyl cellulose nanoparticles: Clarithomycin encapsulation and eradication of H. pylori

2014 ◽  
Vol 109 ◽  
pp. 22-27 ◽  
Author(s):  
Porntip Pan-In ◽  
Wijit Banlunara ◽  
Nuntaree Chaichanawongsaroj ◽  
Supason Wanichwecharungruang
Keyword(s):  
Ethyl Cellulose ◽  
Cellulose Nanoparticles ◽  
H Pylori

scholarly journals Electrosprayed Ethyl Cellulose Core-Shell Microcapsules for the Encapsulation of Probiotics

Pharmaceutics ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 7
Author(s):  
Jorge Sevilla Moreno ◽  
Panagiota Dima ◽  
Ioannis S. Chronakis ◽  
Ana C. Mendes
Keyword(s):  
Ethyl Cellulose ◽  
Average Diameter ◽  
Core Shell ◽  
Shell Material ◽  
Bifidobacterium Animalis ◽  
The Core ◽  
Viable Cells ◽  
Shell Matrix ◽  
The Stability ◽  
Over Time

Electrosprayed ethyl cellulose core–shell microcapsules were produced for the encapsulation of probiotic Bifidobacterium animalis subsp. lactis (Bifido). Ethyl cellulose (ETC) was used as a shell material with different core compounds (concentrated Bifido, Bifido–maltodextrin and Bifido–glycerol). The core–shell microcapsules have an average diameter between 3 µm and 15 µm depending on the core compounds, with a distinct interface that separates the core and the shell structure. The ETC microcapsules displayed relatively low water activity (aw below 0.20) and relatively high values of viable cells (109–1011 CFU/g), as counted post-encapsulation. The effect of different core compounds on the stability of probiotics cells over time was also investigated. After four weeks at 30 °C and 40% RH the electrospray encapsulated samples containing Bifido–glycerol in the core showed a loss in viable cells of no more than 3 log loss CFU/g, while the non-encapsulated Bifido lost about 7.57 log CFU/g. Overall, these results suggest that the viability of the Bifido probiotics encapsulated within the core–shell ETC electrosprayed capsules can be extended, despite the fact that the shell matrix was prepared using solvents that typically substantially reduce their viability.

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