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生物材料与纳米技术(英文)最新文献

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Rapid Green Synthesis of Silver Nanoparticles by Reishi and Their Antibacterial Activity and Mechanisms. 灵芝快速绿色合成纳米银及其抗菌活性及机理研究。
Pub Date : 2024-07-01 Epub Date: 2024-07-12 DOI: 10.4236/jbnb.2024.153004
Akamu J Ewunkem, T'nasia Priester, Desia Williams, Bailey Ariyon, Ilunga Tshimanga, Brittany Justice, Dinesh K Singh

Nanotechnology is a rapidly growing field in biomedical engineering with references to efficiency, safety, and cost-effective approaches. Herein, the objective of this study was to examine an innovative approach to rapidly synthesis silver nanoparticles from an aqueous extract of medicinal mushroom Ganoderma lucidum (also known as reishi). The structural and dimensional dispersion of the biosynthesized silver nanoparticles from reishi was confirmed by UV-Vis spectrophotometer (UV-Vis) and Scanning Electron Microscopy (SEM) analysis. Additionally, the biosynthesized silver nanoparticles from resihi were used to explore their potential antimicrobial activity against Staphylococcus aureus and Micrococcus luteus and Escherichia coli and Klebsiella pneumoniae. The results from this study revealed that the silver nanoparticles mediated by reishi adopted a spherical shape morphology with sizes, less than 100 nm and revealed strong absorption plasmon band at 440 nm. Furthermore, the biosynthesized silver nanoparticles from reishi exhibited antibacterial activity against the tested S. aureus and M. luteus and E. coli and K. pneumoniae by altering their morphology which signifies their biomedical potential.

纳米技术是生物医学工程中一个快速发展的领域,涉及到效率、安全性和成本效益。在此,本研究的目的是研究一种从药用蘑菇灵芝(也称为灵芝)的水提取物中快速合成纳米银的创新方法。利用紫外-可见分光光度计(UV-Vis)和扫描电镜(SEM)分析证实了灵芝生物合成银纳米粒子的结构和尺寸分散性。此外,利用resihi生物合成的银纳米颗粒研究了其对金黄色葡萄球菌、黄体微球菌、大肠杆菌和肺炎克雷伯菌的潜在抗菌活性。结果表明,灵芝介导的银纳米粒子呈球形,粒径小于100 nm,在440 nm处显示出较强的吸收等离子体带。此外,灵芝生物合成的银纳米颗粒通过改变其形态对金黄色葡萄球菌、黄体分枝杆菌、大肠杆菌和肺炎克雷伯菌表现出抗菌活性,这表明其具有生物医学潜力。
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引用次数: 0
Natural Nanoskin Advanced Cell Therapy (ACT) and Nanoskin ACT Soft towards the Definitive Solution for Acute and Chronic Wounds 天然纳米皮肤先进细胞疗法(ACT)和纳米皮肤ACT软对急性和慢性伤口的最终解决方案
Pub Date : 2023-01-01 DOI: 10.4236/jbnb.2023.142003
S. A. Mualla, Noura Salim Salman, Nasreen Abdelatif, Salma Al Ketbi, P. Basmaji, Mohamed M. Kanjou, Mirvan Ahmad
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引用次数: 0
In Vitro Evaluation of Two Tissue Substitutes for Gingival Augmentation 两种组织替代物用于牙龈隆胸的体外评价
Pub Date : 2023-01-01 DOI: 10.4236/jbnb.2023.142002
Tulio Cardoso dos Santos, C. Elias, Alexandre Barboza Lemos, A. Soares, A. Pelegrine, L. N. Teixeira, E. F. Martinez
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引用次数: 1
Comparison between Four Types of Buffers for DNA Agarose Gel Electrophoresis 四种DNA琼脂糖凝胶电泳缓冲液的比较
Pub Date : 2023-01-01 DOI: 10.4236/jbnb.2023.143004
Sahar Abd Al-Daim
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引用次数: 0
The Role of Biosynthesized Metallic and Metal Oxide Nanoparticles in Combating Anti-Microbial Drug Resilient Pathogens 生物合成金属和金属氧化物纳米颗粒在抗微生物药物弹性病原体中的作用
Pub Date : 2023-01-01 DOI: 10.4236/jbnb.2023.141001
Gemechis Waktole, Bayissa Chala
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引用次数: 3
Toxicity and Molecular Mechanisms of Actions of Silver Nanoparticles 纳米银的毒性及分子机制研究
Pub Date : 2023-01-01 DOI: 10.4236/jbnb.2023.143005
Gemechis Waktole
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引用次数: 1
Matrix Stiffness-Induced Transcriptome Alterations and Regulatory Mechanisms Revealed by RNA-Seq in Endothelial Cells 内皮细胞中基质硬度诱导的转录组改变和RNA-Seq揭示的调控机制
Pub Date : 2022-01-01 DOI: 10.4236/jbnb.2022.133004
Chao Zhang, Xiaomei Han, Jin Xu, Yue Zhou
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引用次数: 0
Bacterial Cellulose for Several Medicine Areas: Future Insights 细菌纤维素在几个医学领域:未来的见解
Pub Date : 2022-01-01 DOI: 10.4236/jbnb.2022.131001
P. Basmaji, G. Olyveira, Mohamed M. Kanjou, H. Reichert
Bacterial cellulose (BC)-Nanoskin® has become established as a new biomaterial and can be used in several medicine areas, especially for medical devices mainly in dental and orthopedics applications. In addition, biomaterials have rise because of the increased interest in tissue engineering and regeneratine medicine materials for wound care and skin cancer treatment. The BC process production can be changed by different fermentation process. It has par-ticular properties that make it an ideal candidate as a medical material: high mechanical properties, biocompatibility to the host tissue, and production in various shapes and sizes. This review describes a behavior investigation of this biomaterial in human medicine with bacterial cellulose, skin cancer, co-vid-19 and 3-D print for medical area.
细菌纤维素(BC)-Nanoskin®已成为一种新的生物材料,可用于多个医学领域,特别是牙科和骨科应用的医疗设备。此外,由于对伤口护理和皮肤癌治疗的组织工程和再生医学材料的兴趣增加,生物材料也有所增加。不同的发酵工艺可以改变BC工艺的产量。它具有特殊的特性,使其成为理想的医用材料:高机械性能,与宿主组织的生物相容性,以及各种形状和大小的生产。本文综述了该生物材料在细菌纤维素、皮肤癌、covid -19和3d打印医学领域的行为研究。
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引用次数: 1
An Ecoconceptual Synthesis Process of Silver Nanoparticles Integrating the Valorization of a Food Waste: The Peanut Shell 整合食物垃圾:花生壳的价值的银纳米颗粒的生态概念合成过程
Pub Date : 2022-01-01 DOI: 10.4236/jbnb.2022.132003
C. Massard, K. Awitor
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引用次数: 0
Influence of Ozonized Oil Nanoemulsions on B-16 Melanoma Cells: An in Vitro Study 臭氧化油纳米乳对B-16黑色素瘤细胞影响的体外研究
Pub Date : 2021-08-17 DOI: 10.4236/jbnb.2021.124005
Yeliz Yalçın, I. Tekin, R. Aydın
In this study, we aimed to use a novel approach to overcome the current limitations of ozone therapy in medicine through ozonized oil nanoemulsions (OZNEs). We evaluated dose-dependency on the cellular activities of B-16 melanoma cell line which were incubated with various OZNE doses (v/v). Antitumor effects of OZNE against cancer cell lines were evaluated by cellular morphology, apoptosis and cell cycle analysis. Flow cytometry results showed that OZNE induced DNA damage, apoptosis, and arrested cell cycle in G0-1 phase in B-16 melanoma cells. Thus, OZNE treatment could pose an effective way to act as a potential therapeutic for patients with tumors in the future.
在这项研究中,我们旨在使用一种新的方法,通过臭氧油纳米乳液(OZNEs)克服目前医学上臭氧治疗的局限性。我们评估了B-16黑色素瘤细胞系的细胞活性的剂量依赖性,该细胞系用各种OZE剂量(v/v)孵育。通过细胞形态学、细胞凋亡和细胞周期分析,评价OZE对癌症细胞株的抗肿瘤作用。流式细胞术结果显示,OZE诱导B-16黑色素瘤细胞DNA损伤、凋亡,并使细胞周期停滞在G0-1期。因此,OZE治疗可能为未来的肿瘤患者提供一种有效的治疗方法。
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引用次数: 0
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生物材料与纳米技术(英文)
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