A near-infrared light-triggered shape-memory polymer for long-time fluorescence imaging in deep tissues

2020 ◽  
Vol 8 (35) ◽  
pp. 8061-8070 ◽  
Author(s):  
Chengzhen Chu ◽  
Zhen Xiang ◽  
Jiao Wang ◽  
Hui Xie ◽  
Tao Xiang ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Shape Memory ◽  
Real Time ◽  
Fluorescence Imaging ◽  
Near Infrared ◽  
Shape Memory Polymer ◽  
The Body ◽  
Infrared Light ◽  
Minimally Invasive Operation ◽  
Long Time

Implanting a stent in the body through a minimally invasive operation and tracking its location in real-time is still a challenge.

A reconfigurable, self-healing and near infrared light responsive thermoset shape memory polymer

2020 ◽  
Vol 187 ◽  
pp. 107940 ◽  
Author(s):  
Yongkang Bai ◽  
Jiwen Zhang ◽  
Didi Wen ◽  
Peiwei Gong ◽  
Jiamei Liu ◽  
...  
Keyword(s):  
Shape Memory ◽  
Near Infrared ◽  
Shape Memory Polymer ◽  
Infrared Light ◽  
Self Healing ◽  
Near Infrared Light

Near-Infrared Light Triggered Soft Actuators in Aqueous Media Prepared from Shape-Memory Polymer Composites

2016 ◽  
Vol 301 (9) ◽  
pp. 1111-1120 ◽  
Author(s):  
Liang Fang ◽  
Tianyu Fang ◽  
Xiaoxia Liu ◽  
Shunping Chen ◽  
Chunhua Lu ◽  
...  
Keyword(s):  
Shape Memory ◽  
Polymer Composites ◽  
Near Infrared ◽  
Shape Memory Polymer ◽  
Aqueous Media ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Soft Actuators

scholarly journals Near-Infrared Light-Responsive Shape Memory Polymer Fabricated from Reactive Melt Blending of Semicrystalline Maleated Polyolefin Elastomer and Polyaniline

Polymers ◽  
2021 ◽  
Vol 13 (22) ◽  
pp. 3984
Author(s):  
Min-Su Heo ◽  
Tae-Hoon Kim ◽  
Young-Wook Chang ◽  
Keon Soo Jang
Keyword(s):  
Shape Memory ◽  
Near Infrared ◽  
Shape Memory Polymer ◽  
Structural Features ◽  
Infrared Light ◽  
Melt Mixing ◽  
Transmission Electron ◽  
Polyolefin Elastomer ◽  
Physically Crosslinked ◽  
Internal Mixer

A shape memory polymer was prepared by melt mixing a semicrystalline maleated polyolefin elastomer (mPOE) with a small amount of polyaniline (PANI) (up to 15 wt.%) in an internal mixer. Transmission electron microscopy (TEM), FTIR analysis, DMA, DSC, melt rheological analysis, and a tensile test were performed to characterize the structure and properties of the mPOE/PANI blends. The results revealed that the blends form a physically crosslinked network via the grafting of PANI onto the mPOE chains, and the PANI dispersed at the nanometer scale in the POE matrix served as a photo-thermal agent and provided increased crosslinking points. These structural features enabled the blends to exhibit a shape memory effect upon near-infrared (NIR) light irradiation. With increasing PANI content, the shape recovery rate of the blend under NIR stimulation was improved and reached 96% at 15 wt.% of PANI.

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