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Construction and evaluation of controlled-release delivery system of Abamectin using porous silica nanoparticles as carriers.

Wang Y, Cui H, Sun C, Zhao X, Cui B - Nanoscale Res Lett (2014)

Bottom Line: Photolysis and poor solubility in water of Abamectin are key issues to be addressed, which causes low bioavailability and residual pollution.In this study, a novel hydrophilic delivery system through loading Abamectin with porous silica nanoparticles (Abam-PSNs) was developed in order to improve the chemical stability, dispersity, and the controlled release of Abamectin.These results suggest that Abam-PSNs can significantly improve the performance of controllable release, photostability, and water solubility of Abamectin by changing the porous structure of silica nanoparticles, which is favorable to improve the bioavailability and reduce the residues of pesticides.

View Article: PubMed Central - PubMed

Affiliation: Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China, ywangbless@gmail.com.

ABSTRACT
Photolysis and poor solubility in water of Abamectin are key issues to be addressed, which causes low bioavailability and residual pollution. In this study, a novel hydrophilic delivery system through loading Abamectin with porous silica nanoparticles (Abam-PSNs) was developed in order to improve the chemical stability, dispersity, and the controlled release of Abamectin. These results suggest that Abam-PSNs can significantly improve the performance of controllable release, photostability, and water solubility of Abamectin by changing the porous structure of silica nanoparticles, which is favorable to improve the bioavailability and reduce the residues of pesticides.

No MeSH data available.


TEM images of Abam-PSNs with different porous structure obtained at various etching time. (a-d) At low magnification: (a) 45 min, (b) 75 min, (c) 105 min, and (d) 120 min; (e-h) the corresponding images of (a-d) at high magnification: (e) 45 min, (f) 75 min, (g) 105 min, and (h) 120 min.
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Fig5: TEM images of Abam-PSNs with different porous structure obtained at various etching time. (a-d) At low magnification: (a) 45 min, (b) 75 min, (c) 105 min, and (d) 120 min; (e-h) the corresponding images of (a-d) at high magnification: (e) 45 min, (f) 75 min, (g) 105 min, and (h) 120 min.

Mentions: TEM images in FigureĀ 5 showed the effects of porous structure of PSNs on loading capacity of the Abamectin in Abam-PSNs. The PSNs with different porous structures were used as carriers after etching from 45 to 120 min and load Abamectin to form the Abam-PSNs. The Abam-PSNs show porous and rough surface, which is different with the morphology of PSNs, revealing that the pesticides were adsorbed on the surface of PSNs carriers.


Construction and evaluation of controlled-release delivery system of Abamectin using porous silica nanoparticles as carriers.

Wang Y, Cui H, Sun C, Zhao X, Cui B - Nanoscale Res Lett (2014)

TEM images of Abam-PSNs with different porous structure obtained at various etching time. (a-d) At low magnification: (a) 45 min, (b) 75 min, (c) 105 min, and (d) 120 min; (e-h) the corresponding images of (a-d) at high magnification: (e) 45 min, (f) 75 min, (g) 105 min, and (h) 120 min.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4494038&req=5

Fig5: TEM images of Abam-PSNs with different porous structure obtained at various etching time. (a-d) At low magnification: (a) 45 min, (b) 75 min, (c) 105 min, and (d) 120 min; (e-h) the corresponding images of (a-d) at high magnification: (e) 45 min, (f) 75 min, (g) 105 min, and (h) 120 min.
Mentions: TEM images in FigureĀ 5 showed the effects of porous structure of PSNs on loading capacity of the Abamectin in Abam-PSNs. The PSNs with different porous structures were used as carriers after etching from 45 to 120 min and load Abamectin to form the Abam-PSNs. The Abam-PSNs show porous and rough surface, which is different with the morphology of PSNs, revealing that the pesticides were adsorbed on the surface of PSNs carriers.

Bottom Line: Photolysis and poor solubility in water of Abamectin are key issues to be addressed, which causes low bioavailability and residual pollution.In this study, a novel hydrophilic delivery system through loading Abamectin with porous silica nanoparticles (Abam-PSNs) was developed in order to improve the chemical stability, dispersity, and the controlled release of Abamectin.These results suggest that Abam-PSNs can significantly improve the performance of controllable release, photostability, and water solubility of Abamectin by changing the porous structure of silica nanoparticles, which is favorable to improve the bioavailability and reduce the residues of pesticides.

View Article: PubMed Central - PubMed

Affiliation: Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China, ywangbless@gmail.com.

ABSTRACT
Photolysis and poor solubility in water of Abamectin are key issues to be addressed, which causes low bioavailability and residual pollution. In this study, a novel hydrophilic delivery system through loading Abamectin with porous silica nanoparticles (Abam-PSNs) was developed in order to improve the chemical stability, dispersity, and the controlled release of Abamectin. These results suggest that Abam-PSNs can significantly improve the performance of controllable release, photostability, and water solubility of Abamectin by changing the porous structure of silica nanoparticles, which is favorable to improve the bioavailability and reduce the residues of pesticides.

No MeSH data available.