Biodegradable Flexible Electronic Device with Controlled Drug Release for Cancer Treatment

Author(s):  
Hangfei Li ◽  
Fei Gao ◽  
Peng Wang ◽  
Lan Yin ◽  
Nan Ji ◽  
...  
2019 ◽  
Vol 7 (7) ◽  
pp. 1050-1055 ◽  
Author(s):  
Liangcan He ◽  
Kanglei Pang ◽  
Wenwen Liu ◽  
Yue Tian ◽  
Lin Chang ◽  
...  

Core–shell Au@zeolitic-imidazolate-framework nanocarriers with high drug-loading, controlled drug release properties, and high cancer treatment efficiency.


2009 ◽  
Vol 24 (11) ◽  
pp. 3338-3342 ◽  
Author(s):  
Jeong-Yun Sun ◽  
Nanshu Lu ◽  
Juil Yoon ◽  
Kyu-Hwan Oh ◽  
Zhigang Suo ◽  
...  

For a flexible electronic device integrating inorganic materials on a polymer substrate, the polymer can deform substantially, but the inorganic materials usually fracture at small strains. This paper describes an approach to make such a device highly stretchable. A polyimide substrate is first coated with a thin layer of an elastomer, on top of which SiNx islands are fabricated. When the substrate is stretched to a large strain, the SiNx islands remain intact. Calculations confirm that the elastomer reduces the strain in the SiNx islands by orders of magnitude.


2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Aparna Shukla ◽  
Akhand Pratap Singh ◽  
Pralay Maiti

AbstractNovel biocompatible and brush copolymers have been developed for cancer treatment using its controlled drug-release potential. Polyurethane graft on linear dextrin has been synthesized to control the hydrophilic–hydrophobic balance for regulated drug delivery. The properties of the graft copolymers have been tuned through graft density. The prepared grafts are thermally stable and mechanically strong. An injectable hydrogel has been developed by embedding the drug-loaded brush copolymers in methyl cellulose to better control the release for a prolonged period, importantly by keeping the drug release at a constant rate. Cellular studies indicate the biocompatible nature of the brush copolymers whose controlled and slow release of drug exhibit significant cytotoxic effects on cancer cells. Endocytosis of drug tagged contrast agent indicates greater transport of biologically active material inside cell as observed through cellular uptake studies. In vivo studies on melanoma mice exhibit the real efficacy of the controlled drug release from the injectable hydrogel with significant melanoma suppression without any side effects as opposed to severe toxic effects observed in conventional chemotherapy. Special application method of drug-loaded hydrogel just beneath the tumor makes this system incredibly effective through confinement. Thus, brush copolymer injectable hydrogel is a promising vehicle for control release of drug for cancer treatment in future.


2014 ◽  
Vol 45 (1) ◽  
pp. 1332-1335 ◽  
Author(s):  
Satoshi Naganawa ◽  
Kenta Nishijima ◽  
Yoshiaki Hagihara ◽  
Yuta Suzuki ◽  
Koichi Nagamoto ◽  
...  

2019 ◽  
Vol 7 (43) ◽  
pp. 6742-6750 ◽  
Author(s):  
Ya-Nan Hao ◽  
An-Qi Zheng ◽  
Ting-Ting Guo ◽  
Yang Shu ◽  
Jian-Hua Wang ◽  
...  

Here we report a novel mechanism for triggering drug release in the polydopamine (PDA)-coated magnetic CuCo2S4 core–shell nanostructure by glutathione (GSH) triggered degradation of PDA for release.


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