COA of Formula: C4H7BrO2In 2019 ,《Preparation of a series of photoresponsive polymersomes bearing photocleavable a 2-nitrobenzyl group at the hydrophobic/hydrophilic interfaces and their payload releasing behaviors》 appeared in Polymers (Basel, Switzerland). The author of the article were Yamamoto, Shota; Yamada, Takafumi; Kubo, Genki; Sakurai, Kazuo; Yamaguchi, Kazuo; Nakanishi, Jun. The article conveys some information:
In this study, the structure-function relationships of a series of polymersomes composed of well-defined amphiphilic diblock copolymers were investigated. The building blocks were synthesized by clicking hydrophobic polymers, synthesized beforehand, and com. available poly(ethylene glycol) with photocleavable 2-nitrobenzyl compounds bearing alkyne and maleimide functionalities. All of the tested polymersomes preserved their hollow structures even after sufficient photoirradiation Nevertheless, the release rate of an entrapped anionic fluorophore was highly dependent on the mol. weight and the type of hydrophobic polymer, as well as on the presence or absence of the charged end groups. Moreover, the polymersomes with a 2-nitrosobenzyl photolysis residue within the hydrophobic shells exhibited photo-induced payload release after complete photolysis. It was concluded that the payload release was mediated by photo-induced permeability changes of the hydrophobic shells rather than the decomposition of their overall structures. In the experiment, the researchers used 4-Bromobutanoic acid(cas: 2623-87-2COA of Formula: C4H7BrO2)
4-Bromobutanoic acid(cas: 2623-87-2) belongs to carboxylic acids. The chief chemical characteristic of the carboxylic acids is their acidity. They are generally more acidic than other organic compounds containing hydroxyl groups but are generally weaker than the familiar mineral acids (e.g., hydrochloric acid, HCl, sulfuric acid, H2SO4, etc.).COA of Formula: C4H7BrO2
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary