光热治疗
活性氧
纳米技术
抗氧化剂
纳米壳
生物物理学
化学
纳米结构
体内
材料科学
纳米颗粒
生物化学
生物
生物技术
作者
Jianwei Ding,Wendi Luo,Ting Wu,Shuangfei Cai,Zian Pan,Haolin Li,Bin Tu,Qiaojun Fang,Xiyun Yan,Rong Yang
出处
期刊:Nano Today
[Elsevier]
日期:2023-12-27
卷期号:54: 102121-102121
被引量:3
标识
DOI:10.1016/j.nantod.2023.102121
摘要
Nanostructure-based regulation on β-amyloid (Aβ) aggregation has shown potential in Alzheimer’s disease (AD) treatment. However, to develop an efficient therapeutic modality for Aβ-targeted AD therapy over nanostructures, with a deep understanding of mechanism at a molecular level, still remains a challenge. Herein, we report a multimodal modulation on Aβ aggregation by the subnanometer-thick and porous Pd nanosheets (NSs). The Pd NSs can not only effectively inhibit Aβ42 aggregation via a strong Pd-Aβ42 interaction, but display excellent antioxidant enzyme-like activities to eliminate the toxic reactive oxygen species (ROS) caused by the Aβ42 fibers, which restrains the ROS induced vicious cycle and slows down the development of AD. Besides, the Pd NSs exhibit robust near-infrared (NIR) photothermal effect, which enhances the depolymerization of Aβ42 fibers, while they are less cytotoxic and even promote cell growth. Moreover, the Pd NSs-based multimodal therapy can prolong the lifetime of nematodes and enhance their locomotion ability in in vivo tests. This work provides new insights into the development of ultrathin metallic nanostructures for AD therapy.
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