UNASSIGNED: Cell walls from Saccharomyces cerevisiae were hydrothermally treated in 0.5 M H2SO4 to produce CQDs. Multiple analytical techniques were utilized to confirm phosphorus-doping (P-CQDs), characterize the fluorescence properties, determine quantum yield, and evaluate the sensing, antimicrobial, photocatalytic, and antioxidant capacities.
UNASSIGNED: A successful synthesis of P-CQDs was achieved with strong blue fluorescence under UV excitation, 19 % quantum yield, and excellent stability. The P-CQDs showed sensitive fluorescence quenching in response to ferric ions with a 201 nM detection limit. Antibacterial effects against Escherichia coli and Staphylococcus aureus were demonstrated. P-CQDs also exhibited dye degradation under sunlight and antioxidant activity. So, the prepared P-CQDs displayed promising multifunctional capabilities for metal ion detection, disinfection, and environmental remediation. Further research is required to fully realize and implement the multifunctional potential of P-CQDs in real-world applications.
■来自酿酒酵母的细胞壁在0.5MH2SO4中水热处理以产生CQDs。利用多种分析技术来确认磷掺杂(P-CQDs),表征荧光特性,确定量子产率,并评估传感,抗菌,光催化,和抗氧化能力。
■在紫外线激发下,以强烈的蓝色荧光实现了P-CQDs的成功合成,19%的量子产率,和出色的稳定性。P-CQDs响应于三价铁离子显示出灵敏的荧光猝灭,检测极限为201nM。证明了对大肠杆菌和金黄色葡萄球菌的抗菌作用。P-CQDs在阳光下也表现出染料降解和抗氧化活性。所以,制备的P-CQDs显示了金属离子检测的有希望的多功能能力,消毒,和环境修复。需要进一步的研究来充分实现和实施P-CQD在实际应用中的多功能潜力。