海藻提取物作为AU纳米粒子合成的可持续资源及其生物和环境应用
Jayanta Kumar Patra1, Han-Seung Shin1, Gitishree Das1
1Department of Food Science and Biotechnology, College of Life Science and Biotechnology, Dongguk University-Seoul, Goyang-si, Republic of Korea.
Artificial cells, nanomedicine, and biotechnology
|August 7, 2025
概括
这项研究使用棕色海藻提取物生物制造金纳米粒子 (AuNPs),证明了它们在生物和环境应用中的潜力. 这些可持续的Hfs-AuNPs在铁酶抑制,抗糖尿病作用,抗氧化活性和染料降解方面表现有前途.
科学领域:
- 纳米材料的绿色合成
- 生物技术和材料科学 生物技术和材料科学
- 可持续的化学可持续的化学
背景情况:
- 海洋棕色海藻Hizikia fusiformis (Hfs) 是生物活性化合物的丰富来源.
- 开发用于纳米材料合成的环保方法对于可持续发展至关重要.
- 黄金纳米颗粒 (AuNPs) 有多种应用,但需要具有成本效益和环保的生产.
研究的目的:
- 使用Hizikia fusiformis (Hfs) 的水提取物生物制造金纳米粒子 (AuNPs).
- 用各种光谱技术来描述合成的Hfs-AuNP.
- 评估Hfs-AuNPs的生物 (铁酶抑制,抗糖尿病,抗氧化剂) 和环境 (光催化剂) 应用.
主要方法:
- 使用Hfs水提取物的AuNPs的生物制造.
- 通过UV-Vis光谱学,X射线衍射 (XRD) 和富里埃变换红外光谱学 (FT-IR) 进行表征.
- 评估生物活性 (铁酶抑制,α-氨酶活性,DPPH清除,SOD测定) 和甲蓝和甲色的光催化降解.
主要成果:
- Hfs-AuNPs在534nm显示了表面等离子体共振,证实了晶体性质和球形形态,其泽塔电位为-18.6mV.
- 观察到显著的铁酶抑制 (31.74%),抗糖尿病作用 (56.38%的α-氨基酶活性) 和抗氧化特性 (82.89%的DPPH清除,63.73%的SOD效应).
- Hfs-AuNPs显示了甲基蓝的光催化降解 (29.20%在5小时) 和甲基色 (21.26%在3小时).
结论:
- 该研究成功地展示了一种可持续的,具有成本效益的方法,用于从海洋海藻中生产Hfs-AuNPs.
- 合成的Hfs-AuNP具有有前途的生物和环境修复特性.
- 这种环保的方法具有大规模生产和各种治疗和工业应用的潜力.
相关概念视频
01:30Environmental Applications of Microorganisms
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
01:25Microbial Bioremediation of Uranium
Microorganisms play a critical role in the transformation and immobilization of uranium in contaminated environments through four main pathways: bioreduction, biosorption, bioaccumulation, and biomineralization. These mechanisms reduce uranium’s toxicity and prevent its migration through groundwater systems, offering sustainable approaches for in situ bioremediation.Bioreduction of UraniumBioreduction is driven by anaerobic bacteria such as certain strains of Geobacter and Shewanella, which use...
01:24Microbial Corrosion
Microbiologically Influenced Corrosion (MIC) is a significant form of material degradation caused by the metabolic activities of microorganisms. This phenomenon poses substantial challenges across various industries, including oil and gas, maritime, and water treatment sectors.MIC occurs when microorganisms, such as bacteria, archaea, and fungi, colonize metal surfaces, forming biofilms that alter the local electrochemical environment. These biofilms can lead to the production of corrosive...
01:24iChip
The cultivation of environmental microorganisms has long been hindered by the inability to replicate complex native conditions in vitro. The isolation chip (iChip) addresses this limitation by facilitating the growth of previously uncultivable microorganisms through in situ incubation. Designed for high-throughput microbial cultivation, the iChip comprises hundreds of microchambers, each capable of housing a single microbial cell. These microchambers are loaded with a mixture of molten agar and...
01:25Biofuels
The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...