期刊
JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION
卷 33, 期 5, 页码 668-686出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09205063.2021.2008789
关键词
Type I collagen fibrils; carboxylated polyamidoamine; amorphous calcium phosphate; dentin
资金
- National Natural Science Foundation of China [81760204]
A novel nanocomposite, PAMAM-COOH/ACP, synthesized by combining carboxylated polyamidoamine dendrimer and nano-sized amorphous calcium phosphate, showed superior remineralization ability of human dentin type I collagen fibrils, especially intrafibrillar remineralization. This new nanomaterial holds promise for preventing and treating various diseases caused by dentin demineralization and enhancing dental materials.
Intrafibrillar mineralization of type I collagen fibrils is of great significance in dental remineralization, which is the key of caries prevention and treatment. Herein, two substances that have the remineralization ability, carboxylated polyamidoamine dendrimer (PAMAM-COOH) and nano-sized amorphous calcium phosphate (n-ACP) were combined to synthesize a novel nanomaterial, carboxylated polyamidoamine dendrimer/amorphous calcium phosphate nanocomposite (PAMAM-COOH/ACP). This article aims to evaluate the remineralization effect of PAMAM-COOH/ACP of dentin type I collagen fibrils in vitro. Fluorescence labeling technique was innovatively used to observe and evaluate the remineralization effect. PAMAM-COOH/ACP showed superior remineralization ability of human dentin type I collagen fibrils, especially the intrafibrillar remineralization. Therefore, the novel nanomaterial PAMAM-COOH/ACP is promising to prevent and treat various diseases caused by dentin demineralization and to improve various dental materials.
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