pH and GSH dual-responsive fluorescent nanoparticles from polydopamine coating mesoporous silica for controlled drug release and real-time detection

Author(s):  
Hengquan Zhou ◽  
Guiying Li ◽  
Lei Guo ◽  
Qian Tao ◽  
Songmei Ma ◽  
...  
RSC Advances ◽  
2018 ◽  
Vol 8 (37) ◽  
pp. 20862-20871 ◽  
Author(s):  
Chao Chen ◽  
Wen Sun ◽  
Wenji Yao ◽  
Yibing Wang ◽  
Hanjie Ying ◽  
...  

A smart pH/GSH dual-responsive drug delivery system by using DAD as a “gatekeeper polymer” to end-cap MSNs via pH-sensitive Schiff bond, whereas DAD polymer shell were cross-linked by GSH-sensitive disulfide bond.


Nanomedicine ◽  
2020 ◽  
Vol 15 (25) ◽  
pp. 2447-2458
Author(s):  
Xiaona Li ◽  
Shun Hu ◽  
Zhe Lin ◽  
Jie Yi ◽  
Xue Liu ◽  
...  

Aim: Smart mesoporous silica nanoparticles (MSNs) coated with carbon dots (CDs) and poly(N-vinylcaprolactam) (PNVCL) as a mixed shell (CDs/PNVCL polymer grafted MSNs) were prepared for pH-trigged anticancer drug release and real-time monitoring. Materials & methods: The amino-terminated PNVCL and amino-rich CDs were grafted onto the surface of aldehyde group functionalized MSNs through Schiff base reaction. Doxorubicin (DOX) was loaded into the prepared nanoparticles. Results: DOX could be quickly released in the tumor environment, leading to cell apoptosis. The linear fit between the percentage of released DOX and the fluorescence intensity of CDs indicated that the change in fluorescence intensity could be used to monitor drug release in real time. Conclusion: The as-prepared CDs/PNVCL polymer grafted MSNs are promising candidates for integrating controllable release and real-time monitoring in cancer treatment.


RSC Advances ◽  
2019 ◽  
Vol 9 (60) ◽  
pp. 34958-34962 ◽  
Author(s):  
Lu Zhou ◽  
Guojie Liu ◽  
Yang Wang ◽  
Jianling Liu ◽  
Yajie Zhang ◽  
...  

Gold nanoparticles were linked to the surface of mesoporous silica through a polyA oligonucleotide and infrared stimulation controlled drug release.


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