Synthesis of pH-Responsive Biodegradable Mesoporous Silica–Calcium Phosphate Hybrid Nanoparticles as a High Potential Drug Carrier

2017 ◽  
Vol 9 (51) ◽  
pp. 44402-44409 ◽  
Author(s):  
Yongju He ◽  
Bowen Zeng ◽  
Shuquan Liang ◽  
Mengqiu Long ◽  
Hui Xu
MedChemComm ◽  
2017 ◽  
Vol 8 (9) ◽  
pp. 1797-1805 ◽  
Author(s):  
Madhappan Santha Moorthy ◽  
Subramanian Bharathiraja ◽  
Panchanathan Manivasagan ◽  
Kang Dae Lee ◽  
Junghwan Oh

Herein, we propose a “host–guest” complexation-based mesoporous silica drug carrier, MSNs@Mela@TTM, for pH-responsive drug delivery applications in cancer therapy.


2016 ◽  
Vol 1 (7) ◽  
pp. 1339-1346 ◽  
Author(s):  
Wei C. Chu ◽  
Dong R. Peng ◽  
Bishnu P. Bastakoti ◽  
Malay Pramanik ◽  
Victor Malgras ◽  
...  

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2749 ◽  
Author(s):  
Abeer Beagan ◽  
Shatha Lahmadi ◽  
Ahlam Alghamdi ◽  
Majed Halwani ◽  
Mohammed Almeataq ◽  
...  

This work presents the synthesis of pH-responsive poly(2-(diethylamino) ethyl methacrylate) (PDEAEMA) brushes anchored on hollow mesoporous silica nanoparticles (HMSN-PDEAEMA) via a surface-initiated ARGET ATRP technique. The average size of HMSNs was ca. 340 nm, with a 90 nm mesoporous silica shell. The dry thickness of grafted PDEAEMA brushes was estimated to be ca 30 nm, as estimated by SEM and TEM. The halogen group on the surface of PDEAMA brushes was successfully derivatized with glucosamine, as confirmed by XPS. The effect of pH on the size of the hybrid nanoparticles was investigated by DLS. The size of fabricated nanoparticle decreased from ca. 950 nm in acidic media to ca. 500 nm in basic media due to the deprotonation of tertiary amine in the PDEAEMA. The PDEAEMA modified HMSNs nanocarrier was efficiently loaded with doxorubicin (DOX) with a loading capacity of ca. 64%. DOX was released in a relatively controlled pH-triggered manner from hybrid nanoparticles. The cytotoxicity studies demonstrated that DOX@HMSN-PDEAEMA-Glucosamine showed a strong ability to kill breast cancer cells (MCF-7 and MCF-7/ADR) at low drug concentrations, in comparison to free DOX.


2021 ◽  
Vol 14 (10) ◽  
pp. 951
Author(s):  
Xia Niu ◽  
Xiaomei Wang ◽  
Bingyu Niu ◽  
Yanan Meng ◽  
Hongwei He ◽  
...  

Liver fibrosis remains a significant public health problem. However, few drugs have yet been validated. Costunolide (COS), as a monomeric component of the traditional Chinese medicinal herb Saussurea Lappa, has shown excellent anti-fibrotic efficacy. However, COS displays very poor aqueous solubility and poor stability in gastric juice, which greatly limits its application via an oral administration. To increase the stability, improve the dissolution rate and enhance the anti-liver fibrosis of COS, pH-responsive mesoporous silica nanoparticles (MSNs) were selected as a drug carrier. Methacrylic acid copolymer (MAC) as a pH-sensitive material was used to coat the surface of MSNs. The drug release behavior and anti-liver fibrosis effects of MSNs-COS-MAC were evaluated. The results showed that MSNs-COS-MAC prevented a release in the gastric fluid and enhanced the dissolution rate of COS in the intestinal juice. At half the dose of COS, MSNs-COS-MAC still effectively ameliorated parenchymal necrosis, bile duct proliferation and excessive collagen. MSNs-COS-MAC significantly repressed hepatic fibrogenesis by decreasing the expression of hepatic fibrogenic markers in LX-2 cells and liver tissue. These results suggest that MSNs-COS-MAC shows great promise for anti-liver fibrosis treatment.


2010 ◽  
Vol 21 (2) ◽  
pp. 208-213 ◽  
Author(s):  
Xiang Lan Wu ◽  
Jong Ho Kim ◽  
Heebeom Koo ◽  
Sang Mun Bae ◽  
Hyeri Shin ◽  
...  

Materials ◽  
2018 ◽  
Vol 11 (7) ◽  
pp. 1142 ◽  
Author(s):  
Supakij Suttiruengwong ◽  
Sommai Pivsa-Art ◽  
Metta Chareonpanich

2016 ◽  
Vol 13 (4) ◽  
pp. 574-581 ◽  
Author(s):  
Arijit Guha ◽  
Nikhil Biswas ◽  
Kaustav Bhattacharjee ◽  
Piu Das ◽  
Ketousetuo Kuotsu

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