Zhang, Yonghe; Zhao, Ruibo; Liu, Jia; Kong, Hao; Zhang, Kebiao; Zhang, Yuan-Ning; Kong, Xiangdong; Zhang, Quan; Zhao, Yanli published their research in Biomaterials in 2021. The article was titled ãHierarchical nano-to-molecular disassembly of boron dipyrromethene nanoparticles for enhanced tumor penetration and activatable photodynamic therapyã?SDS of cas: 26153-38-8 The article contains the following contents:
The development of activatable photosensitizers (PSs) is of particular interest for achieving tumor photodynamic therapy (PDT) with minimal side effects. However, the in vivo applications of PSs are limited by complex physiol. and biol. delivery barriers. Herein, boron dipyrromethene (BDP)-based nanoparticles are developed through the self-assembly of a multifunctional “”one-for-all”” building block for enhanced tumor penetration and activatable PDT. The nanoparticles show excellent colloidal stability and long circulation lifetime in blood. Once they reach the tumor site, the first-stage size reduction occurs due to the hydrolysis of the Schiff base bond between polyethylene glycol and the cyclic Arg-Gly-Asp peptide in the acidic tumor microenvironment (pHâ?.5), facilitating tumor penetration and specific recognition by cancer cells overexpressing integrin ανβ3 receptors. Upon the endocytosis by cancer cells, the second-stage size reduction is triggered by more acidic pH in lysosomes (pHâ?.5). Importantly, the protonated diethylamino groups can block photoinduced electron transfer from the amine donor to the excited PSs and accelerate complete disassembly of the nanoparticles into single PS mol., with the recovery of the fluorescence and photoactivity for efficient PDT. This study presents a smart PS delivery strategy involving acidity-triggered hierarchical disassembly from the nano to mol. scale for precise tumor PDT. In addition to this study using 3,5-Dihydroxybenzaldehyde, there are many other studies that have used 3,5-Dihydroxybenzaldehyde(cas: 26153-38-8SDS of cas: 26153-38-8) was used in this study.
3,5-Dihydroxybenzaldehyde(cas: 26153-38-8) is used as a building block in the synthesis of more complex structures. It is also used in the synthesis of terbutaline, which is an important bronchodilator.SDS of cas: 26153-38-8
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