蛋白质聚集
化学
荧光
刚果红
食腐动物
激进的
自由基清除剂
生物物理学
光化学
生物化学
有机化学
生物
抗氧化剂
物理
吸附
量子力学
作者
Qin‐ying Li,Xu Yu,Xi Li,Lina Bao,Yu Zhang,Shilin Wang,Ming Jiang,Kun Huang,Li Xu
出处
期刊:Small
[Wiley]
日期:2023-02-07
卷期号:19 (18)
被引量:14
标识
DOI:10.1002/smll.202205634
摘要
The pathological aggregation of some proteins is claimed to be highly related to several human diseases, such as β-amyloid 1-42 (Aβ42 ) to Alzheimer's disease (AD), islet amyloid polypeptide, and insulin to type 2 diabetes mellitus. Therefore, it is in desperate need to develop effective methods for detection of protein aggregates and inhibition of abnormal aggregation. Herein, to construct all-in-one probe with both diagnosis and treatment potentials for protein aggregation diseases, Congo red (CR), a classical staining reagent with red fluorescence signal output for protein aggregates, is deliberately adopted to react with three different reductive carbon sources and ammonium persulfate to generate three CR-derived carbon dots (CDs). The obtained CDs exhibit the capabilities of turn-on red fluorescence imaging of protein aggregates, and/or inhibition of protein aggregation as well as scavenging of free radicals. Among them, CA-CDs, using citric acid as the reductive carbon source, demonstrate the superiority to the other two studied CDs in integrating all of these functions, and particularly exert excellent cytoprotection effect against toxic Aβ42 species, possessing tremendous potential in diagnosis and treatment of AD for future study. The present study paves a new way to develop all-in-one CDs for the protein disease research.
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