开发和特征的微藻基水凝与Nanochloropsis海洋和大豆蛋白分离物:抗氧化作用和酸输送的活性
Yunqiu Zhang1, See Hui Chew1, Wei Chuen Chan2
1China-ASEAN College of Marine Sciences, Xiamen University Malaysia, Bandar Sunsuria, 43900, Sepang, Selangor, Malaysia.
International journal of biological macromolecules
|March 7, 2026
概括
微藻增强大豆蛋白分离水凝用于药物输送. 纳诺克洛普西斯海洋注入的水凝显示改善的结构,抗氧化和抗菌性质,使它们成为有前途的生物医学载体.
科学领域:
- 生物材料科学 生物材料科学
- 海洋生物技术 海洋生物技术
- 药物输送系统 药物输送系统
背景情况:
- 微藻类,像海洋的Nannochloropsis,是生物活性化合物的丰富来源.
- 豆蛋白分离物 (SPI) 水凝在生物医学应用中具有潜力.
- 整合微藻可以增强用于药物输送的水凝特性.
研究的目的:
- 为了调查纳诺克洛普西斯海洋菌在SPI水凝中的结合.
- 评估复合水凝的结构,机械,抗氧化和抗菌性质.
- 评估这些水凝作为缓释药物递送系统的潜力.
主要方法:
- 豆蛋白分离物 (SPI) 水凝是用不同度的 Nannochloropsis oceanica 制备的.
- 使用扫描电子显微镜 (SEM) 和风湿学分析来描述水凝结构和粘性弹性.
- 使用总含量,总黄含量,ABTS和DPPH试验来评估抗氧化活性.
- 使用酸进行了药物加载和释放研究.
- 对大肠杆菌和Enterococcus faecalis进行了抗菌活性测试.
主要成果:
- SPI-N. oceanica (20%重量) 的水凝表现出规律的孔隙结构和增强的粘性弹性.
- 水凝的水溶性低,胀率高,抗氧化活性显著.
- 酸加载效率达到了64.60%,加载量为244.62 mg/g.
- 在24小时内观察到酸的受控释放.
- 对大肠杆菌和E. faecalis的抗菌活性在加酸加载后得到增强.
结论:
- 海洋的Nannochloropsis有效地增强了SPI水凝的性能.
- 复合水凝显示出作为缓慢释放药物的有效载体的潜力.
- 这项研究强调了微藻基生物载体在先进生物医学应用中的有用性.
相关概念视频
Metabolism of Chemolithotrophs
Chemolithotrophs are microorganisms that obtain energy by oxidizing inorganic molecules such as hydrogen gas (H₂), ammonia (NH₃), reduced sulfur compounds (H₂S, S²⁻), and ferrous iron (Fe²⁺). Unlike heterotrophic organisms that rely on organic carbon, chemolithotrophs transfer electrons from these inorganic donors to the electron transport chain (ETC), generating a proton motive force (PMF) that drives ATP synthesis through oxidative phosphorylation. However, because inorganic electron donors...
Microbial Mats
Microbial communities forming biofilms and mats represent complex, spatially structured ecosystems where metabolic processes are stratified according to light, oxygen, and nutrient gradients. Biofilms are initial colonization stages, only a few millimeters thick, while mature microbial mats can reach centimeter-scale thickness and display intricate vertical organization. Their structural and functional heterogeneity allows microorganisms to occupy distinct ecological niches within a few...
Marine Microbial Ecology
Marine microbial ecosystems are shaped by distinct physicochemical limits, including high salinity, low nutrient availability, and fluctuating oxygen levels. These conditions favor smaller microbial cell sizes, which maximize their surface-to-volume ratio for efficient nutrient uptake.Microbial activity and community composition are closely linked to biogeochemical cycles, particularly in dynamic environments like estuaries, where halotolerant microbes thrive in response to variable salinity...
Freshwater Microbial Ecology
Freshwater systems such as streams, rivers, and lakes exhibit distinct physical and biological characteristics that influence their microbial communities. These environments are broadly categorized into lotic systems—those with flowing waters like streams and most rivers—and lentic systems, which include still or slow-moving waters such as lakes, ponds, and marshes.In lentic systems, phytoplankton drive primary production, generating autochthonous organic carbon. In contrast, lotic systems...
Microbial Wastewater Treatment
Microbial communities in aquatic ecosystems play a key role in the natural breakdown of contaminants introduced through domestic and industrial effluents. Acting as biological catalysts, these microbes change and mineralize a wide range of organic and inorganic pollutants under different redox conditions.In oxygen-rich surface waters, aerobic heterotrophs lead organic matter breakdown, using oxygen as the terminal electron acceptor to efficiently oxidize substrates to carbon dioxide and water.
Microbial Fuel Cells
Microbial fuel cells (MFCs) are bioelectrochemical devices that generate electricity by exploiting the metabolic processes of electrogenic bacteria. These systems provide a renewable energy source and serve as an innovative method for treating organic waste, such as wastewater.A typical MFC consists of two chambers: an anoxic (oxygen-free) compartment that houses the bacteria and an oxic (oxygen-rich) compartment that contains oxygen as the terminal electron acceptor. Many MFCs use proton...


