The author of 《Light-responsive serinol-based polyurethane nanocarrier for controlled drug release》 were Sun, Jingjiang; Rust, Tarik; Kuckling, Dirk. And the article was published in Macromolecular Rapid Communications in 2019. Recommanded Product: 534-03-2 The author mentioned the following in the article:
In the present work, a new and facile strategy for the synthesis of light-responsive polyurethanes (LrPUs) based on serinol with o-nitrobenzyl pendent groups is developed. Stable monodisperse nanoparticles from these LrPUs can be formulated reproducibly in a simple manner, which is shown by dynamic light scattering (DLS) measurements. Upon irradiation with UV light, both polymers and nanoparticles undergo rapid degradation, which is investigated by DLS, SEM, size exclusion chromatog., and UV-vis spectroscopy. The nanoparticles are also employed for the encapsulation of the model drug Nile Red, and by exposure to UV light, a burst release of the payload is detected via fluorescence spectroscopy. This strategy can be easily applied to the straightforward synthesis of various new serinol-based monomers with different stimuli-responsive properties and therefore expand the family of biodegradable polymers. The experimental part of the paper was very detailed, including the reaction process of 2-Aminopropane-1,3-diol(cas: 534-03-2Recommanded Product: 534-03-2)
2-Aminopropane-1,3-diol(cas: 534-03-2) belongs to anime. Nitrous acid converts secondary amines (aliphatic or aromatic) to N-nitroso compounds (nitrosamines): R2NH + HNO2 → R2N―NO. Some nitrosamines are potent cancer-inducing substances, and their possible formation is a serious consideration when nitrites, which are salts of nitrous acid, are present in foods or pharmaceutical preparations. Tertiary amines give rise to nitrosamines more slowly; an alkyl group is eliminated as an aldehyde or ketone, along with nitrous oxide, N2O.Recommanded Product: 534-03-2
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts