Solid Lipid–Polymer Hybrid Nanoparticles by In Situ Conjugation for Oral Delivery of Astaxanthin

2018 ◽  
Vol 66 (36) ◽  
pp. 9473-9480 ◽  
Author(s):  
Taoran Wang ◽  
Qiaobin Hu ◽  
Ji-Young Lee ◽  
Yangchao Luo
2011 ◽  
Vol 233-235 ◽  
pp. 2125-2128
Author(s):  
Li Li Xu ◽  
Sheng Peng Liu ◽  
Xuan Li

In this paper, vinylated magnesium hydroxide (MH) nanosheets were prepared with 3-(trimethoxysilyl) propyl methacrylate (γ-MPS) and pristine MH nanosheets, then the MH/polymer hybrid nanoparticles were prepared by in-situ emulsion copolymerization of vinylated MH nanosheets and styrene (St) monomer and styrene/butyl acrylate (St/BA) comonomer. The morphology, thermal stability and chemical structure of the final products were investigated in detail with transmission electron microscopy (TEM), thermogravimetric analysis (TGA) and Fourier-transform infrared spectra (FTIR). The TEM results showed that the core-shell structure of MH/Polymer nanoparticles with MH-cores and Polymer-shell was formed.


Pharmaceutics ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 607
Author(s):  
Bo Tang ◽  
Yu Qian ◽  
Guihua Fang

Enoxaparin, an anticoagulant that helps prevent the formation of blood clots, is administered parenterally. Here, we report the development and evaluation of lipid–polymer hybrid nanoparticles (LPHNs) for the oral delivery of enoxaparin. The polymer poloxamer 407 (P407) was incorporated into lipid nanoparticles to form gel cores and ensure high encapsulation efficiency and the controlled release of enoxaparin. In vitro results indicated that 30% of P407 incorporation offered higher encapsulation efficiency and sustained the release of enoxaparin. Laser confocal scanning microscopy (LCSM) images showed that LPHNs could not only significantly improve the accumulation of enoxaparin in intestinal villi but also facilitate enoxaparin transport into the underlayer of intestinal epithelial cells. In vivo pharmacokinetic study results indicated that the oral bioavailability of enoxaparin was markedly increased about 6.8-fold by LPHNs. In addition, its therapeutic efficacy against pulmonary thromboembolism was improved 2.99-fold by LPHNs. Moreover, LPHNs exhibited excellent biocompatibility in the intestine. Overall, the LPHN is a promising delivery carrier to boost the oral absorption of enoxaparin.


2018 ◽  
Vol 66 (19) ◽  
pp. 4923-4932 ◽  
Author(s):  
Jinming Zhang ◽  
Di Wang ◽  
Yihan Wu ◽  
Wei Li ◽  
Yichen Hu ◽  
...  

Langmuir ◽  
2013 ◽  
Vol 29 (51) ◽  
pp. 16018-16024 ◽  
Author(s):  
Mengjun Chen ◽  
Yining Zhao ◽  
Wantai Yang ◽  
Meizhen Yin

2017 ◽  
Vol 13 (7) ◽  
pp. 2219-2229 ◽  
Author(s):  
Ying Liu ◽  
Jinguang Liu ◽  
Jun Liang ◽  
Meiying Zhang ◽  
Zhe Li ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (42) ◽  
pp. 36125-36135 ◽  
Author(s):  
Ying Liu ◽  
Yiqing Zhao ◽  
Jinguang Liu ◽  
Meiying Zhang ◽  
Minglei Yu ◽  
...  

WGA-modified lipid–polymer hybrid nanoparticles (WGA-LPNs) showed increased intestinal bioadhesion and cellular uptake and have the potential to improve the oral delivery of poorly water-soluble drugs.


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