Near-infrared light-controlled drug release and cancer therapy with polymer-caged upconversion nanoparticles

RSC Advances ◽  
2015 ◽  
Vol 5 (7) ◽  
pp. 5269-5276 ◽  
Author(s):  
Qingjian Xing ◽  
Najun Li ◽  
Yang Jiao ◽  
Dongyun Chen ◽  
Jiaying Xu ◽  
...  

The core–shell nanocarrier, based on spiropyran-containing copolymer coated upconversion nanocomposites, was successfully prepared via a facile self-assembly process for NIR-triggered drug release and cancer therapy.

2018 ◽  
Vol 6 (21) ◽  
pp. 3531-3540 ◽  
Author(s):  
Jun Xiang ◽  
Xia Tong ◽  
Feng Shi ◽  
Qiang Yan ◽  
Bing Yu ◽  
...  

The preparation of a new near-infrared (NIR) light-responsive nanocarrier for controlled drug release is demonstrated.


2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Ranran Zhang ◽  
Risheng Yao ◽  
Binbin Ding ◽  
Yuxin Shen ◽  
Shengwen Shui ◽  
...  

Low tissue penetration and harmful effects of (ultraviolet) UV or visible light on normal tissue limit exploiting nanocarriers for the application of light-controlled drug release. Two strategies may solve the problem: one is to improve the sensitivity of the nanocarriers to light to decrease the radiation time; the other one is using more friendly light as the trigger. In this work, we fabricated a core-shell hybrid nanoparticle with an upconverting nanoparticle (UCNP) as the core and thermo- and light-responsive block copolymers as the shell to combine the two strategies together. The results indicated that the sensitivity of the block copolymer to light could be enhanced by decreasing the photolabile moieties in the polymer, and the UCNP could transfer near-infrared (NIR) light, which is more friendly to tissue and cell, to UV light to trigger the phase conversion of the block polymersin situ. Using Nile Red (NR) as the model drug, the hybrid nanoparticles were further proved to be able to act as carriers with the character of NIR triggered drug release.


Nanoscale ◽  
2014 ◽  
Vol 6 (24) ◽  
pp. 14903-14910 ◽  
Author(s):  
Shun Yang ◽  
Najun Li ◽  
Zhuang Liu ◽  
Wenwei Sha ◽  
Dongyun Chen ◽  
...  

The light-triggered controlled release of anticancer drugs accompanied with NIR-responsive photodynamic therapy was performed via a self-assembly process. Under 980 nm laser, the cancer cells could be effectively inhibited by released drugs and singlet oxygen simultaneously.


2015 ◽  
Vol 6 (21) ◽  
pp. 4030-4039 ◽  
Author(s):  
Gang Liu ◽  
Na Liu ◽  
Linzhu Zhou ◽  
Yue Su ◽  
Chang-Ming Dong

Near infrared light-responsive polypeptide copolymer upconversion composite nanoparticles exhibited controllable drug release and triggered cytotoxicity useful for on-demand drug delivery and cancer therapy.


RSC Advances ◽  
2016 ◽  
Vol 6 (88) ◽  
pp. 85293-85302 ◽  
Author(s):  
Kai Yan ◽  
Min Chen ◽  
Shuxue Zhou ◽  
Limin Wu

The hybrid colloidal clusters were prepared by self-assembly of multiresponsive copolymer with hydrophobic nanocrystals, and which was able to near-infrared light and temperature triggered drug release.


RSC Advances ◽  
2021 ◽  
Vol 11 (48) ◽  
pp. 29986-29996
Author(s):  
Xiuxiu Qi ◽  
Hongmei Yan ◽  
Yingxue Li

A pH-sensitive core–shell nanoparticle (HMS@C18@PSDMA-b-POEGMA) was developed via a self-assembly process as the carrier of anticancer drug doxorubicin (DOX) for drug loading and controlled release.


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