Phytic Acid-Promoted Exfoliation of Black Phosphorus Nanosheets for the Fabrication of Photothermal Antibacterial Coatings

© 2023 Wiley-VCH GmbH..

Medical device-associated infections (MDAI) caused by planktonic pathogens are of serious concern worldwide due to the emergence of drug resistance resulting from continuous overuse or misuse of antibiotics. Therefore, the design of non-antibiotics-based treatment for MDAI is of crucial importance. Black phosphorus (BP), a novel 2D material, has recently received much attention owing to its remarkable physical, chemical, mechanical, and functional features. However, the intricacy of the fabrication process has severely hampered the development of BP in prospective applications. In this study, a simple and eco-friendly liquid-phase exfoliation method of phytic acid (PA)-promoted exfoliation of BP nanosheets (PABP NSs) is developed for their potential application in antibacterial photothermal therapy. To impart the antimicrobial effects, the polydimethylsiloxane surfaces are functionalized with quaternized polymer (polyquaternium-2 or PQ) and PA@BP NSs, leading to the formation of PA-BP-PQ composite coatings. In addition to the contact-killing antibacterial effect of the cationic PQ, the PA-BP-PQ coating exhibits remarkable near-infrared irradiation-triggered bactericidal effects with low cytotoxicity both in vitro and in vivo. This study proposes a simple liquid-phase exfoliation technique for the fabrication of BP NSs and a one-step approach for the construction of PA-BP-PQ composite coatings for bi-modal (contact-killing and photothermal) antimicrobial therapy.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:13

Enthalten in:

Advanced healthcare materials - 13(2024), 4 vom: 04. Feb., Seite e2302058

Sprache:

Englisch

Beteiligte Personen:

Wu, Ziyi [VerfasserIn]
Huang, Tao [VerfasserIn]
Sathishkumar, Gnanasekar [VerfasserIn]
He, Xiaodong [VerfasserIn]
Wu, Huajun [VerfasserIn]
Zhang, Kai [VerfasserIn]
Rao, Xi [VerfasserIn]
Kang, En-Tang [VerfasserIn]
Xu, Liqun [VerfasserIn]

Links:

Volltext

Themen:

0DMJ6G3XBF
27YLU75U4W
5,6-methylenedioxy-2-aminoindane
7IGF0S7R8I
Anti-Bacterial Agents
Antibacterial photothermal therapy
Black phosphorus nanosheets
Co-deposition
Exfoliation
Indans
Journal Article
Phosphorus
Phytic Acid
Phytic acid

Anmerkungen:

Date Completed 07.02.2024

Date Revised 07.02.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1002/adhm.202302058

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM364641762