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Cited by 174

The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

Microneedle Patch-Mediated Treatment of Bacterial Biofilms

Open access
Xu, Junhua, Danehy, Ryan, Cai, Hongwei, Ao, Zheng, Pu, Meng, Nusawardhana, Alexandra, Rowe-Magnus, Dean, Guo, Feng·2019·ACS Applied Materials & Interfaces

Abstract

Current treatments of bacterial biofilms are limited by the poor penetration of antibiotics through their physical barrier as well as significant off-target toxicity of antibiotics and the induction of antibiotic resistance. Here we report a microneedle patch-mediated treatment for the effective elimination of biofilms by penetrating the biofilm and specifically delivering antibiotics to regions of active growth. We fabricated patches with self-dissolvable microneedles and needle tips loaded with chloramphenicol (CAM)-bearing and gelatinase-sensitive gelatin nanoparticles (CAM@GNPs). During the microneedle patch-mediated treatment, arrays of 225 microneedles simultaneously penetrate the biofilm matrix. Once inside, the microneedles dissolve and uniformly release CAM@GNPs into the surrounding area. In response to the gelatinase produced by the active bacterial community, the CAM@GNPs disassemble and release CAM into these active regions of the biofilm. Moreover, CAM@GNPs exhibited minimal off-target toxicity compared to direct CAM administration, which in turn favors wound healing. Importantly, we found that our microneedle-mediated treatment is more effective in treating Vibrio vulnificus biofilms than drug in free solution. We believe this new treatment strategy can be used to improve the delivery of a wide range of antimicrobial agents to biofilm-contaminated sites.

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Crossref · 10.1021/acsami.9b02578

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Metadata

Authors
Xu, J., Danehy, R., Cai, H., Ao, Z., Pu, M., Nusawardhana, A., Rowe-Magnus, D., & Guo, F.
Venue
ACS Applied Materials & Interfaces
Published
2019-04-01
Volume
11
Issue
16
Pages
14640-14646
ISSN
  • 1944-8244 (ISSN-L)
  • 1944-8252
OpenAlex
W2934730173
Cited by
174
References
2
FWCI
5.82
Type
journal article
Language
en
Open access
green

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