相关实验视频

Updated: Sep 14, 2025

Bacterial Cellulose Spheres that Encapsulate Solid Materials

Bacterial Cellulose Spheres that Encapsulate Solid Materials

Published on: February 26, 2021

光活性碳点固定在纤维素上,具有抗菌活性和生物膜抑制作用

Sreeshna Ravindran¹, Remya Radha¹, Tala Terro¹

¹Department of Biology, Chemistry and Environmental Sciences, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates.

Scientific reports

|July 24, 2025

概括

新型碳点 (CCM-PBA-NH2) 显示出强大的光激活抗微生物特性对抗耐药细菌. 这些碳点有效地对抗生物膜,并表现出低毒性,为抗微生物材料提供了有希望的解决方案.

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:

抗生素耐药性对全球健康构成重大威胁.
滥用抗生素加剧了耐药细菌菌株的发展.
迫切需要新的抗微生物策略来对抗致病性感染.

研究的目的:

为了合成和表征碳点 (CCM-PBA-NH2) 用于抗菌应用.
为了评估这些碳点的光激活抗菌疗效.
评估它们对抗生物膜形成的潜力及其生物相容性.

主要方法:

使用UV-VIS,FTIR,拉曼,XRD,SEM和TEM进行CCM-PBA-NH2碳点的合成和表征.
评估抗菌活性对抗阳性和阴性细菌.
生物膜抑制和破坏的评估,以及细胞毒性测定.

主要成果:

合成的碳点显示出强烈的抗菌活性.
观察到有效的预防和破坏细菌生物膜.
对哺乳动物细胞的低细胞毒性在0.1 mg/mL时被观察到.
碳点在纤维素和氧化纤维素纤维上显示出显著的细菌减少.

结论:

CCM-PBA-NH2碳点是有效的光活性抗菌剂.
它们抑制生物膜的能力和低细胞毒性使它们适合生物医学应用.
将碳点与诸如纤维素之类的生物相容载体相结合,为抗微生物材料 (如伤口料) 提供了一种多功能策略.

关键词:

抗菌剂抗菌剂是一种抗菌剂.生物膜抑制抑制的作用这些碳点是碳点.纤维素复合材料是一种纤维素复合材料.库尔库明是一种黄素.

更多相关视频

Methodologies for Studying B. subtilis Biofilms as a Model for Characterizing Small Molecule Biofilm Inhibitors

Methodologies for Studying B. subtilis Biofilms as a Model for Characterizing Small Molecule Biofilm Inhibitors

Published on: October 9, 2016

Fabrication of a Functionalized Magnetic Bacterial Nanocellulose with Iron Oxide Nanoparticles

Fabrication of a Functionalized Magnetic Bacterial Nanocellulose with Iron Oxide Nanoparticles

Published on: May 26, 2016

相关概念视频

Biofilms

Biofilms

Biofilms are complex communities of microorganisms encased in a self-produced extracellular polysaccharide matrix attached to surfaces. These microbial consortia can include single or multiple species, providing enhanced survival benefits by forming organized, multilayered structures.The formation of biofilms occurs through four key stages: attachment, colonization, development, and dispersal.During attachment, free-swimming planktonic cells adhere to a surface, often facilitated by...