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Title: Self–Destruction of Cancer Induced by Ag2S Amorphous Nanodots

Journal Article · · Small
 [1];  [2];  [3];  [2];  [3];  [2];  [2];  [3]; ORCiD logo [4]
  1. Henan Normal Univ., Henan (China). School of Chemistry and Chemical Engineering; Xinxiang Medical Univ., Henan (China). School of Basic Medical Sciences
  2. Henan Normal Univ., Henan (China). School of Chemistry and Chemical Engineering
  3. Henan Normal Univ., Henan (China). Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions, Ministry of Education
  4. Argonne National Lab. (ANL), Lemont, IL (United States). Chemical Sciences and Engineering Div.

Studies on distinctive performances and novel applications of amorphous inorganic nanomaterials are becoming attractive. Herein, Ag2S amorphous and crystalline nanodots (ANDs and CNDs) are prepared via facile methods. In vitro and in vivo studies indicate that Ag2S ANDs, rather than CNDs, can induce the self-destruction of tumors, which can be attributed to their distinctive chemical properties, e.g., the higher electrochemical active surface area and lower redox potential well matching with the redox reaction requirement in the tumor microenvironment. Ag2S ANDs can be oxidized by intracellular reactive oxygen species (ROS) to release Ag+, which further stimulates high generation of intracellular ROS. This mutual stimulation damages the mitochondria, induces apoptosis, and leads to the self-destruction of the tumor. Moreover, Ag2S ANDs do not show observable in vitro and in vivo side effects. Furthermore, these findings provide a promising self-destructive strategy for cancer therapy by utilizing distinctive chemical properties of inorganic nanomaterials, while avoiding complicated external assistance.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
AC02-06CH11357; AC02‐06CH11357
OSTI ID:
1575249
Alternate ID(s):
OSTI ID: 1562550
Journal Information:
Small, Vol. 15, Issue 44; ISSN 1613-6810
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 10 works
Citation information provided by
Web of Science

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