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设计一种抗……的电活性细菌纤维素-碳纳米管复合膜。 (原文此处against后内容缺失)

Engineering an electroactive bacterial cellulose-carbon nanotube composite membrane against .

作者信息

Levin Daniel S, Cué Royo Camila S, Johnson Denis, Ghosh Soumalya, Balmuri Sricharani Rao, Usman Huda, Martínez Vásquez Shakira M, Yesudoss David Kumar, Djire Abdoulaye, Bedewy Mostafa, Niepa Tagbo H R

机构信息

Pittsburgh Allderdice High School, Pittsburgh, PA, USA.

Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA.

出版信息

Biofilm. 2025 Jul 19;10:100305. doi: 10.1016/j.bioflm.2025.100305. eCollection 2025 Dec.


DOI:10.1016/j.bioflm.2025.100305
PMID:40746581
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12312064/
Abstract

is the leading cause of skin infections in the U.S., and its rapid evolution and resistance to antibiotics create a barrier to effective treatment. In this study, we engineered a composite membrane with bacterial cellulose and carbon nanotubes (BC-CNT) as an electroactive dressing to rapidly eradicate vancomycin-intermediate . Nonpathogenic produced the BC membrane at an air-liquid interface. Then, carboxyl-functionalized multi-walled CNTs were integrated into decellularized BC to create stable and electrically conductive BC-CNT dressings. The electric potential and ionic flux across BC-CNT were modeled and standardized via chronoamperometry for experimental validation. We found that treatment with electroactive BC-CNT increases sensitivity to vancomycin and prevents macro-scale biofilm formation. The bactericidal efficacy of the composite membrane is consistent with electrochemical stress caused by voltage mediated with BC-CNT. After a single hour of combinatorial electrical and drug treatment, biofilm-forming capacity was inhibited by nearly 92 %. These results advance applications of electrochemistry in medicine and create a new direction to overcome infections on skin and soft tissues.

摘要

在美国,它是皮肤感染的主要原因,其快速进化和对抗生素的耐药性给有效治疗造成了障碍。在本研究中,我们设计了一种以细菌纤维素和碳纳米管(BC-CNT)为原料的复合膜作为电活性敷料,以快速根除万古霉素中介菌。非致病性细菌在气液界面产生BC膜。然后,将羧基功能化的多壁碳纳米管整合到脱细胞的BC中,以制备稳定且导电的BC-CNT敷料。通过计时电流法对BC-CNT上的电势和离子通量进行建模和标准化,以进行实验验证。我们发现,电活性BC-CNT处理可提高对万古霉素的敏感性,并防止大规模生物膜形成。复合膜的杀菌效果与BC-CNT介导的电压引起的电化学应力一致。经过一小时的电和药物联合治疗后,生物膜形成能力被抑制了近92%。这些结果推动了电化学在医学中的应用,并为克服皮肤和软组织感染开辟了新方向。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/45c7/12312064/1c0450d55bc8/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/45c7/12312064/28af9fbb9bbc/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/45c7/12312064/e55443ddb326/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/45c7/12312064/01622bcb8cf6/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/45c7/12312064/f03c0c5434c3/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/45c7/12312064/1c0450d55bc8/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/45c7/12312064/28af9fbb9bbc/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/45c7/12312064/e55443ddb326/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/45c7/12312064/01622bcb8cf6/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/45c7/12312064/f03c0c5434c3/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/45c7/12312064/1c0450d55bc8/gr5.jpg

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本文引用的文献

[1]
Response of reaction mechanisms to electric-field catalysis on carbon nanotubes in microfluidic reactors.

Chem Sci. 2025-5-28

[2]
A Wearable Self-Charging Electroceutical Device for Bacteria-Infected Wound Healing.

ACS Nano. 2024-6-18

[3]
Activity of Hydrogen-Peroxide Generating Electrochemical Bandage Against Murine Wound Infections.

Adv Ther (Weinh). 2023-5

[4]
Fighting bacterial pathogens with carbon nanotubes: focused review of recent progress.

RSC Adv. 2023-6-29

[5]
In vitro comparative cytotoxic assessment of pristine and carboxylic functionalized multiwalled carbon nanotubes on LN18 cells.

J Biochem Mol Toxicol. 2023-3

[6]
Silver Nanoparticle-Based Therapy: Can It Be Useful to Combat Multi-Drug Resistant Bacteria?

Antibiotics (Basel). 2022-9-6

[7]
Functionalized carbon nanotubes: synthesis, properties and applications in water purification, drug delivery, and material and biomedical sciences.

Nanoscale Adv. 2021-8-9

[8]
Global burden of bacterial antimicrobial resistance in 2019: a systematic analysis.

Lancet. 2022-2-12

[9]
Bacterial Cellulose as a Potential Bio-Scaffold for Effective Re-Epithelialization Therapy.

Pharmaceutics. 2021-9-30

[10]
Practical Applications of Bioelectric Stimulation.

Bioelectricity. 2019-12-1

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