植物合成纳米颗粒增强生物活性材料力学性能的比较评估：一项研究。

Comparative Evaluation of the Mechanical Properties of a Bioactive Material Enhanced by Phytosynthesized Nanoparticles: An Study.

作者信息

Lath Harshita, Patri Gaurav, Bajoria Atul Anand, Banka Aanchal

机构信息

Department of Conservative Dentistry and Endodontics, Kalinga Institute of Dental Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha, India.

Department of Oral Medicine and Radiology, Kalinga Institute of Dental Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha, India.

出版信息

Contemp Clin Dent. 2023 Oct-Dec;14(4):277-281. doi: 10.4103/ccd.ccd_140_23. Epub 2023 Dec 19.

DOI:10.4103/ccd.ccd_140_23

PMID:38344166

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10855509/

Abstract

AIMS

The aim was the study was to evaluate and compare the mechanical properties of ACTIVA Bioactive Base/Liner (ABBL) enhanced with phytosynthesized titanium dioxide nanoparticles (nTiO) and nano-curcumin (nCur).

METHODOLOGY

Thirty samples each of ABBL (Group 1), ABBL + nTiO (Group 2), and ABBL + nCur (Group 3) were prepared for testing the compressive strength (CS) and flexural strength (FS). Forty-five cylinders (15 per group) (6 mm × 4 mm) were fabricated for CS and 45 for three-point bending FS measurements (22 mm × 2 mm × 2 mm). They were tested in a universal testing machine at a crosshead speed of 0.5 mm/min for CS and 0.5 mm/min with 20 mm space between the two supports for FS measurements.

STATISTICAL ANALYSIS

Intergroup comparison of CS and FS was assessed using one-way ANOVA. The level of significance was set at 0.05.

RESULTS

Intergroup comparison showed an overall significant difference ( = 0.016 for CS) and ( = 0.001 for FS), where Group 1 had the highest and Gr 3 the least strength. No significant difference was observed between Group 1 and Group 2, while Group 3 showed significantly low strength when compared to Group 1.

CONCLUSIONS

ABBL + 3% nTiO showed nonsignificant decrease while ABBL + 7% nCur showed significant decrease in mechanical properties.

摘要

目的

本研究旨在评估和比较添加植物合成二氧化钛纳米颗粒（nTiO）和纳米姜黄素（nCur）的ACTIVA生物活性基底/衬层（ABBL）的力学性能。

方法

制备了ABBL（第1组）、ABBL + nTiO（第2组）和ABBL + nCur（第3组）各30个样本，用于测试抗压强度（CS）和抗弯强度（FS）。制作了45个圆柱体（每组15个）（6毫米×4毫米）用于CS测试，45个用于三点弯曲FS测量（22毫米×2毫米×2毫米）。在万能试验机上对它们进行测试，CS测试时十字头速度为0.5毫米/分钟，FS测量时两个支撑之间的间距为20毫米，十字头速度为0.5毫米/分钟。