azobenzene group
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2022 ◽  
Author(s):  
Wanbing Li ◽  
Haibo Zhang ◽  
Zhaolan Zhai ◽  
Xujuan Huang ◽  
Shibin Shang ◽  
...  

Novel ‘bola’ rosin-based photo-responsive amphiphilic polymers PMPn (n=17, 34, 69) were synthesized using polyethyleneglycol (PEG) as a double hydrophilic head and N-azobenzenemaleimidepimaric (AZOMPA) as a hydrophobic tail. The relatively fixed...



Author(s):  
Young Jin Choi ◽  
Young-Wun Kim ◽  
Kun Jun ◽  
Seong-Geun Oh ◽  
Ho-Cheol Kang


Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 901 ◽  
Author(s):  
Jian Xu ◽  
Bin Niu ◽  
Song Guo ◽  
Xiaolei Zhao ◽  
Xiaoli Li ◽  
...  

The photoinduced solid-to-liquid transitions property of azobenzene-containing polymers (azopolymers) enables azopolymers with various promising applications. However, a general lack of knowledge regarding the influence of structure of the azobenzene derivatives on the photoinduced liquefaction hinders the design of novel azopolymers. In the present study, a series of azopolymers with side chains containing azobenzene unit bearing alkyl electron-donating groups were synthesized. The photoisomerization and photoinduced liquefaction properties of newly synthesized azopolymers were investigated. Alkyl-based electron-donating group significantly facilitate the photoisomerization process of azopolymers in solution, as the electron-donating ability of substituents increased, the time required for photoisomerization of azopolymers continually deceased. Meanwhile, the electron-donating group can drastically accelerate photoinduced solid-to-liquid transitions of azopolymers, the liquefaction rate of obtained azopolymers gradually getting quicker as the electron-donating ability of substituents increased. This study clearly demonstrates that the electron-donating group that bearing in the azobenzene group of polymer side chain play an essential role on the photoinduced solid-to-liquid transitions of azopolymers, and hence, gives an insight into how to design novel azopolymers for practical applications.



2020 ◽  
Vol 11 (33) ◽  
pp. 8981-8988
Author(s):  
Núria Camarero ◽  
Ana Trapero ◽  
Ariadna Pérez-Jiménez ◽  
Eric Macia ◽  
Alexandre Gomila-Juaneda ◽  
...  

We've combined the pharmacological properties of the dynamin inhibitor dynasore and the photochromic properties of an azobenzene group, to obtain the first light-regulated small-molecule inhibitor of endocytosis.



2019 ◽  
Vol 171 ◽  
pp. 107694 ◽  
Author(s):  
Shengsheng Yu ◽  
Tantan Yang ◽  
Mingyue Sui ◽  
Guang-Yan Sun ◽  
Tie Chen ◽  
...  
Keyword(s):  


2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Daewoong Jang ◽  
Sumit Kumar Pramanik ◽  
Amitava Das ◽  
Woohyun Baek ◽  
Jung-Moo Heo ◽  
...  

Abstract Creation of hollow, one-dimensional nanomaterials has gained great recent attention in the chemical and material sciences. In a study aimed at discovering new functional materials of this type, we observed that an amphiphilic diacetylene (DA) derivative, containing an azobenzene moiety and an oligo-ethylene group, self-assembles to form nanotubes and undergoes photopolymerization to form hollow polydiacetylene (PDA) nanotubes with a uniform wall thickness and diameter. The azobenzene-PDA nanotubes are photoresponsive in that on-and-off UV-irradiation leads to a reversible morphological change between straight and bent forms in association with E-Z photoisomerization of the azobenzene group. Owing to the UV-induced structural change feature, the new DA and PDA nanotubes serve as a controlled release material. Accordingly, fluorescent rhodamine B encapsulated inside the nanotubes are effectively released by using repeated on-off UV irradiation. Furthermore, photo-release of rhodamine B was shown to occur in an artemia (brine shrimp).





2017 ◽  
Vol 9 (29) ◽  
pp. 24947-24954 ◽  
Author(s):  
Zhi-Bin Wen ◽  
Dan Liu ◽  
Xiao-Yang Li ◽  
Chen-Hui Zhu ◽  
Ren-Fan Shao ◽  
...  


RSC Advances ◽  
2017 ◽  
Vol 7 (71) ◽  
pp. 44688-44695 ◽  
Author(s):  
Zhiyong Li ◽  
Huiyong Wang ◽  
Mengen Chu ◽  
Pengxin Guan ◽  
Yang Zhao ◽  
...  

ILs with an azobenzene-group at the end of the alkyl chain could form micelles; UV/vis irradiation only changed the size of the aggregates.



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