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2022年10月嘲风作品集（三）

已有 924 次阅读 2022-12-28 14:36 |个人分类:作品发表|系统分类:论文交流

▲ Vol 13 Issue 38 | October 14, 2022

Photoinduced deformation of amorphous polyimide enabled by an improved azobenzene isomerization efficiency

Xuejie Sun, Jia Wei and Yanlei Yu

Photodeformable azobenzene-containing polyimides (azo-PIs) have attracted attention due to their photo-response, good mechanical properties, and thermal stability. The deformation principle of azo-PIs mainly depends on the accumulation of conformational changes in one direction by polarized-light irradiation or pre-stretching. Herein, we synthesize a new deformable azo-PI and put forward a different strategy to achieve photodeformation by improving the azobenzene isomerization efficiency, which is attributed to the incorporation of azobenzene into the side chains of the polyimide (s-azo-PI). The s-azo-PI film exhibits reversible bending behaviour under alternate ultraviolet and visible light irradiation without using polarized light or pre-stretching. By means of this photodeformable behaviour, origami- or kirigami-inspired deformable 3D-structure objects, such as a cubic box and roller, are easily manufactured without any prior treatment, showing the potential to broaden the application of azopolymers in smart 3D actuators.

https://pubs.rsc.org/en/content/articlelanding/2022/py/d2py00691j

▲ Vol 34 Issue 42 | October 20, 2022

Phase-Transitional Bismuth-Based Metals enable Rapid Embolotherapy, Hyperthermia, and Biomedical Imaging

Minghui Duan, Xiyu Zhu, Linlin Fan, Yuanyuan He, Chen Yang, Rui Guo, Sen Chen, Xuyang Sun, Jing Liu

Embolic Agents
In article number 2205002, Xuyang Sun, Jing Liu, and co-workers propose a novel liquid embolic agent with rapid liquid–solid phase-transition capability, for administrating simultaneous embolotherapy, hyperthermia, and biomedical imaging. Through simple syringe injection, the liquid embolic agent can flow and fill the nutrient supply vessels of the hepatoma to realize fast embolization. This high-image-contrast material with good biocompatibility is also demonstrated to produce a large amount of heat under an external electromagnetic field to enhance the therapeutic efficacy of tumor embolization, which holds great promise in future embolism and theranostic platforms.

‍https://onlinelibrary.wiley.com/doi/10.1002/adma.202270294‍

▲ Vol 61 Issue 43 | October 24, 2022

An Ultramicroporous Hydrogen-Bonded Organic Framework Exhibiting High C2H2/CO2 Separation

Dr. Yisi Yang, Hao Zhang, Zhen Yuan, Prof. Jia-Qi Wang, Fahui Xiang, Liangji Chen, Prof. Fangfang Wei, Prof. Shengchang Xiang, Prof. Banglin Chen, Prof. Zhangjing Zhang

An ultramicroporous hydrogen-bonded organic framework with a suitable pore environment and electrostatic potential distribution fitting well to C2H2 is reported by Zhangjing Zhang and co-workers in their Communication (e202207579). The framework shows extra strong affinity to C2H2 and the highest IAST selectivity for C2H2/CO2 separation among the adsorbents reported.

https://onlinelibrary.wiley.com/doi/10.1002/anie.202213957

▲ Vol 36 Issue 20 | October 26, 2022

纳米材料光催化灭活新型冠状病毒SARS-CoV-2研究进展与启示

陈龙, 刘兆利, 杨旭东, 张偌涵, 孙玮良, 刘文

由新型冠状病毒(严重急性呼吸综合症冠状病毒2型,SARS-CoV-2)引发的新冠肺炎(COVID-19)疫情全球蔓延,给人类健康和社会经济发展造成了巨大影响,因此,病毒的灭活是目前备受关注的环境公共卫生安全问题。病毒不会在宿主体外立即失活的特点扩展了其传播途径,而水体是SARS-CoV-2传播的重要媒介,尤其是城镇生活污水和医院污水。表面功能蛋白和核酸RNA是SARS-CoV-2的主要组成成分,可被活性物种如氧化性的自由基攻击而破坏,从而实现病毒的灭活。以纳米材料为核心的光催化技术可在光激发后高效产生活性氧物种,能够破坏病毒的结构蛋白、损坏病毒的RNA并影响其发育或阻断其与宿主的结合。本文在分析SARS-CoV-2的环境分布和传播特征的基础上,结合纳米材料光催化技术的核心机理,探讨了纳米光催化技术杀灭新冠病毒的机制,并全面综述了目前纳米材料应用于光催化灭活新冠病毒的研究进展,总结了可应用于该领域的潜在纳米光催化材料。本综述可为开发适用于新冠病毒灭活的光催化纳米材料提供参考,对新冠疫情防控中公共安全保障,尤其是切断病毒环境传播途径具有重要的理论价值和现实意义。

http://www.mater-rep.com/CN/10.11896/cldb.22100084

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