Functionalization of mesoporous organosilica nanocarrier for pH/glutathione dual-responsive drug delivery and imaging of cancer therapy process

Talanta ◽  
2018 ◽  
Vol 177 ◽  
pp. 203-211 ◽  
Author(s):  
Lin-Lin Hu ◽  
Jie Meng ◽  
Dan-Dan Zhang ◽  
Ming-Li Chen ◽  
Yang Shu ◽  
...  
2019 ◽  
Vol 3 (6) ◽  
pp. 1159-1167 ◽  
Author(s):  
Yuxun Ding ◽  
Jinjian Liu ◽  
Xue Li ◽  
Linlin Xu ◽  
Chang Li ◽  
...  

pH-Reduction dual responsive nanocarriers (DRNs) achieve programmable release of CA4 and CDDP in cancer therapy.


Materials ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1279 ◽  
Author(s):  
Yanqin Xu ◽  
Liyue Xiao ◽  
Yating Chang ◽  
Yuan Cao ◽  
Changguo Chen ◽  
...  

In order to achieve a controlled release drug delivery system (DDS) for cancer therapy, a pH and redox dual-responsive mesoporous silica nanoparticles (MSN)-sulfur (S)-S- chitosan (CS) DDS was prepared via an amide reaction of dithiodipropionic acid with amino groups on the surface of MSN and amino groups on the surface of CS. Using salicylic acid (SA) as a model drug, SA@MSN-S-S-CS was prepared by an impregnation method. Subsequently, the stability, swelling properties and drug release properties of the DDS were studied by x-ray diffraction, scanning electron microscopy, Fourier transform infrared microspectroscopy, size and zeta potential as well as Brunauer–Emmett–Teller surface area. Pore size and volume of the composites decreased after drug loading but maintained a stable structure. The calculated drug loading rate and encapsulation efficiency were 8.17% and 55.64%, respectively. The in vitro drug release rate was 21.54% in response to glutathione, and the release rate showed a marked increase as the pH decreased. Overall, double response functions of MSN-S-S-CS had unique advantages in controlled drug delivery, and may be a new clinical application of DDS in cancer therapy.


2015 ◽  
Vol 51 (76) ◽  
pp. 14338-14341 ◽  
Author(s):  
Shengnan Li ◽  
Lingyu Zhang ◽  
Tingting Wang ◽  
Lu Li ◽  
Chungang Wang ◽  
...  

A novel, mild and facile synthetic route was first developed to fabricate hollow Au nanoflowers (designated as H-AuNFs) with drug loading capacity, superior photothermal conversion property and pH/NIR dual-responsive drug delivery performance for chemo-photothermal synergistic cancer therapy in vitro and in vivo.


Pharmaceutics ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 890
Author(s):  
Shanmugavel Chinnathambi ◽  
Fuyuhiko Tamanoi

Porous nanomaterials can be used to load various anti-cancer drugs efficiently and deliver them to a particular location in the body with minimal toxicity. Biodegradable periodic mesoporous organosilica nanoparticles (BPMOs) have recently emerged as promising candidates for disease targeting and drug delivery. They have a large functional surface and well-defined pores with a biodegradable organic group framework. Multiple biodegradation methods have been explored, such as the use of redox, pH, enzymatic activity, and light. Various drug delivery systems using BPMO have been developed. This review describes recent advances in the biomedical application of BPMOs.


2014 ◽  
Vol 2 (38) ◽  
pp. 6487-6499 ◽  
Author(s):  
Madhappan Santha Moorthy ◽  
Ji-Hye Park ◽  
Jae-Ho Bae ◽  
Sun-Hee Kim ◽  
Chang-Sik Ha

The integrated nitrile groups in the pore walls of the DU-MSH-CN were converted into reactive –COOH or –NH2groups, by an acid or base hydrolysis technique to achieve large amounts of either –COOH or –NH2groups into the pore walls. Thein vitrodrug release and biocompatibility tests proved the organosilica hybrids suitable for drug carriers in cancer therapy.


2017 ◽  
Vol 5 (11) ◽  
pp. 2161-2171 ◽  
Author(s):  
Meili Wang ◽  
Yanping Liu ◽  
Xuwu Zhang ◽  
Liyao Luo ◽  
Lei Li ◽  
...  

Stimuli-responsive drug delivery and release have a great significance in cancer therapy.


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