来自Mahua (Madhuca longifolia) 的可持续碳量子点用于生物医学和环境应用
Daray Soren1,2, Jagannath Panda1, Jaykishon Swain1
1Future Materials Laboratory, School of Applied Sciences, Kalinga Institute of Industrial Technology Deemed to be University, Bhubaneswar, 751024, India.
Scientific reports
|October 1, 2025
概括
环保的碳量子点 (CQD) 是从马华花中合成的. 这些CQD显示出金属传感,抗真菌活性和生物医学诊断的潜力,因为它们的稳定性和光.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 生物医学工程 生物医学工程
背景情况:
- 碳量子点 (CQD) 是有前途的纳米材料,具有多种应用.
- 开发CQD的环保合成方法对于可持续技术至关重要.
- 麻瓜 (Madhuca longifolia) 是印度的一个社会经济重要植物,具有作为新型碳源的潜力.
研究的目的:
- 通过使用Mahua (Madhuca longifolia) 作为碳来源,合成环保的碳量子点 (CQD).
- 描述合成的CQD,并评估它们在生物医学和环境应用中的潜力.
- 调查CQDs的金属传感,抗真菌,抗菌和细胞毒性特性.
主要方法:
- 传统的热水技术用于CQD合成.
- 使用XRD,FT-IR,XPS,泽塔电位,TEM,AFM,UV-Vis和光发光谱学的表征.
- 抗真菌,抗菌,金属传感和细胞毒性测试.
主要成果:
- 从Mahua.成功地合成了~5.77nm大小的CQDs.
- CQD显示出出色的稳定性和pH敏感的光.
- 对Fe3+离子传感具有很高的选择性,对尼日尔菌和菌氧化具有显著的抗真菌活性,对金黄色葡萄球菌有抗菌作用.
- 细胞毒性研究显示,树突细胞的IC50值为3.1,这表明了潜在的生物医学应用.
结论:
- 环保的CQD可以从Mahua花中合成.
- 合成的CQD对环境监测 (金属传感) 和生物医学诊断 (抗真菌,抗菌和低细胞毒性) 具有有前途的特性.
- 来自马华的CQD代表了各种应用的可持续和多功能纳米材料.
相关概念视频
The Carbon Cycle
Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
Carbon-13 (¹³C) NMR: Overview
Carbon-13 is a naturally occurring NMR-active isotope of carbon with a low natural abundance of 1.1%. In contrast, carbon-12 is the most abundant isotope of carbon with zero nuclear spin. Therefore, it is NMR inactive. The gyromagnetic ratio of carbon-13 is smaller than that of protons. As a result, carbon-13 resonance is about 6000 times weaker than proton resonance. For a given magnetic field strength, the resonance frequency of carbon-13 is about one-fourth of the resonance frequency for...
Carbon Dioxide Transport in the Blood
Carbon dioxide (CO2) transport in the blood is critical to human physiology. On average, our body cells produce around 200 mL of CO2 per minute, precisely the quantity expelled by the lungs. This process involves the transportation of CO2 from the tissue cells to the lungs in three primary forms.
Forms of CO2 Transport
1. Dissolved in plasma: A small percentage (7-10%) of CO2 is transported and dissolved directly in the plasma.
2. Carbaminohemoglobin: Just over 20% of CO2 is chemically bound to...
Forms of CO2 Transport
1. Dissolved in plasma: A small percentage (7-10%) of CO2 is transported and dissolved directly in the plasma.
2. Carbaminohemoglobin: Just over 20% of CO2 is chemically bound to...
Environmental 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...
Carbon-dioxide Fixation
Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...
Bioplastics
Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...


