Disaggregated Nano-Hydroxyapatite (DnHAP) with Inhibitory Effects on Biofilms and Demineralization.

IF 8.3 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces Pub Date : 2023-07-01 DOI:10.1177/00220345231162349

Y Huang, Q Han, X Peng, B Ren, J Li, X Zhou, M Li, L Cheng

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引用次数: 0

Abstract

Nano-hydroxyapatite (nHAP) is considered a biocompatible agent that promotes the remineralization of dental hard tissue; however, its antibacterial efficacy is under scientific discussion. Therefore, this investigation aimed to specify the inhibitory effects of disaggregated nano-hydroxyapatite (DnHAP) on regrown biofilms and demineralization. Regrown biofilm models of single-species (Streptococcus mutans), dual-species (S. mutans and Candida albicans), and saliva-derived microcosm biofilms were established in vitro. Repeat treatment with DnHAP was applied to biofilms. The viability, lactic acid, biofilm structure, biomass, the inhibitory effect of demineralization, and virulence factors' expression were determined. In addition, the biofilm microbial community was analyzed by 16S ribosomal RNA gene sequencing. DnHAP inhibited metabolism, lactic acid production, biomass, and water-insoluble polysaccharide production (P < 0.05) of regrown single/dual-species biofilms. Concerning the saliva-derived biofilms, samples treated with DnHAP showed lower biofilm metabolic activity without significant differences from samples treated with sterile deionized water (P > 0.05); in addition, saliva-derived biofilms treated with DnHAP exhibited lower lactic acid production (P < 0.05). The demineralization of bovine enamel was the lowest in the DnHAP group, as detected by transverse microradiography, and the lesion depth and volume decreased significantly (P < 0.05). The application of DnHAP did not change the diversity of regrown saliva-derived microcosm biofilms. In conclusion, this investigation showed that DnHAP could be a promising solution for the management of regrown biofilms to combat dental caries.

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纳米羟基磷灰石(DnHAP)对生物膜和脱矿的抑制作用。

纳米羟基磷灰石(nHAP)被认为是促进牙硬组织再矿化的生物相容性剂;然而，其抗菌效果仍在科学讨论中。因此，本研究旨在明确分解纳米羟基磷灰石(DnHAP)对再生生物膜和脱矿的抑制作用。在体外建立了单种(变形链球菌)、双种(变形链球菌和白色念珠菌)和唾液来源的微生物生物膜再生模型。生物膜采用DnHAP重复处理。测定其活力、乳酸、生物膜结构、生物量、脱矿抑制效果及毒力因子表达。此外，采用16S核糖体RNA基因测序对生物膜微生物群落进行分析。DnHAP抑制再生单/双种生物膜的代谢、乳酸产量、生物量和水不溶性多糖产量(P < 0.05)。在唾液源生物膜代谢活性方面，DnHAP处理的样品与无菌去离子水处理的样品相比，生物膜代谢活性较低(P > 0.05);此外，经DnHAP处理的唾液源生物膜乳酸产量降低(P < 0.05)。牛牙釉质脱矿程度以DnHAP组最低，病变深度和体积明显减小(P < 0.05)。DnHAP的应用并没有改变再生唾液微生物生物膜的多样性。总之，本研究表明DnHAP可能是一种有前途的解决方案，用于管理再生的生物膜，以对抗龋病。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Applied Materials & Interfaces 工程技术-材料科学：综合

CiteScore

16.00

自引率

6.30%

发文量

4978

审稿时长

1.8 months

期刊介绍： ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.