SDS of cas: 56-17-7. Ma, D; Shi, MH; Li, X; Zhang, JL; Fan, Y; Sun, K; Jiang, TT; Peng, C; Shi, XY in [Ma, Dan; Zhang, Jiulong; Peng, Chen; Shi, Xiangyang] Tongji Univ, Sch Med, Shanghai Peoples Hosp 10, Canc Ctr, Shanghai 200072, Peoples R China; [Ma, Dan; Shi, Menghan; Li, Xin; Fan, Yu; Jiang, Tingting; Shi, Xiangyang] Donghua Univ, Coll Chem Chem Engn & Biotechnol, Shanghai 201620, Peoples R China; [Sun, Kai] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA; [Peng, Chen] Ninghai First Hosp, Ningbo 315600, Peoples R China published Redox-Sensitive Clustered Ultrasmall Iron Oxide Nanoparticles for Switchable T-2/T-1-Weighted Magnetic Resonance Imaging Applications in 2020.0, Cited 44.0. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7.
Development of novel activable dual-mode T-1/T-2-weighted magnetic resonance (MR) contrast agents with the same composition for dynamic precision imaging of tumors has been a challenging task. Here, we demonstrated a strategy to prepare clustered Fe3O4 nanoparticles (NPs) with redox-responsiveness to tumor microenvironment to achieve switchable T-2/T-1-weighted dual-mode MR imaging applications. In this study, we first synthesized ultrasmall Fe3O4 NPs with an average size of 3.3 nm and an r, relaxivity of 4.3 mM(-1) s(-1), and then cross-linked the single Fe3O4 NPs using cystamine dihydrochloride (Cys) to form clustered Fe3O4/Cys NPs. The Fe3O4 nanoclusters (NCs) possess desirable colloidal stability, cytocompatibility, high r(2) relaxivity (26.4 mM(-1) s(-1)), and improved cellular uptake efficiency. Importantly, with the redox-responsiveness of the disulfide bond of Cys, the Fe3O4 NCs can be dissociated to form single particles under a reducing condition, hence displaying a switchable T-2/T-1-weighted MR imaging property that can be utilized for dynamic precision imaging of cancer cells in vitro and a subcutaneous tumor model in vivo due to the reductive intracellular environment of cancer cells and the tumor microenvironment. With the tumor reductive microenvironment-mediated switching of T-2 to T-1 MR effect and the ultrasmall size of the single particles that can pass through the kidney filter, the developed Fe3O4 NCs may be used as a promising switchable T-2/T-1 dual-mode MR contrast agent for precision imaging of different biosystems.
SDS of cas: 56-17-7. Welcome to talk about 56-17-7, If you have any questions, you can contact Ma, D; Shi, MH; Li, X; Zhang, JL; Fan, Y; Sun, K; Jiang, TT; Peng, C; Shi, XY or send Email.
Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem