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光激活量子点增强抗生素治疗耐药细菌生物膜的作用

Light-activated quantum dot potentiation of antibiotics to treat drug-resistant bacterial biofilms.

作者信息

Stamo Dana F, Nagpal Prashant, Chatterjee Anushree

机构信息

Chemical and Biological Engineering, University of Colorado Boulder Boulder CO 80303 USA

Antimicrobial Regeneration Consortium Boulder CO 80301 USA.

出版信息

Nanoscale Adv. 2021 Apr 21;3(10):2782-2786. doi: 10.1039/d1na00056j. eCollection 2021 May 18.

DOI:10.1039/d1na00056j
PMID:36134178
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9419411/
Abstract

CdTe-2.4 eV quantum dots (QDs) show excellent efficacy due to their tunability and photo-potentiation for sterilizing drug-resistant planktonic cultures without harming mammalian cells but this QD fabrication has not been tested against biofilms. While the QD attack mechanism-production of superoxide radicals-is known to stimulate biofilm formation, here we demonstrate that CdTe-2.4 eV QD-antibiotic combination therapy can nearly eradicate , methicillin-resistant , and biofilms. CdTe-2.4 eV QD versatility, safety, and ability to potentiate antibiotics makes them a potential treatment strategy for biofilm-associated infections.

摘要

碲化镉-2.4电子伏特量子点(QDs)因其可调节性和光增强作用,在对耐药浮游培养物进行杀菌时表现出优异的效果,且不会伤害哺乳动物细胞,但这种量子点制剂尚未针对生物膜进行测试。虽然已知量子点的攻击机制——超氧自由基的产生——会刺激生物膜形成,但在此我们证明,碲化镉-2.4电子伏特量子点与抗生素联合治疗几乎可以根除耐甲氧西林金黄色葡萄球菌生物膜。碲化镉-2.4电子伏特量子点的多功能性、安全性以及增强抗生素效力的能力,使其成为生物膜相关感染的一种潜在治疗策略。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8917/9419411/45cd2e2ba78e/d1na00056j-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8917/9419411/66896be5366a/d1na00056j-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8917/9419411/b04494888961/d1na00056j-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8917/9419411/45cd2e2ba78e/d1na00056j-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8917/9419411/66896be5366a/d1na00056j-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8917/9419411/b04494888961/d1na00056j-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8917/9419411/45cd2e2ba78e/d1na00056j-f3.jpg

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