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Article: Rapid Sterilization and Accelerated Wound Healing Using Zn2+ and Graphene Oxide Modified g-C3N4 under Dual Light Irradiation

TitleRapid Sterilization and Accelerated Wound Healing Using Zn2+ and Graphene Oxide Modified g-C3N4 under Dual Light Irradiation
Authors
Keywordsantibacterials
g‐C3N4
photodynamic therapy
photothermal therapy
wound healing
Issue Date2018
PublisherWiley - VCH Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.wiley-vch.de/home/afm
Citation
Advanced Functional Materials, 2018, v. 28 n. 30, p. article no. 1800299 How to Cite?
AbstractWound healing is affected by bacterial infection and related inflammation, cell proliferation and differentiation, and tissue remodeling. Current antibiotics therapy cannot promote wound healing and kill bacteria at the same time. Herein, hybrid nanosheets of g‐C3N4‐Zn2+@graphene oxide (SCN‐Zn2+@GO) are prepared by combining Zn2+ doped sheet‐like g‐C3N4 with graphene oxide via electrostatic bonding and π–π stacking interactions to assist wound healing and kill bacteria simultaneously by short‐time exposure to 660 and 808 nm light. The gene expressions of matrix metalloproteinase‐2, type I collagen, type III collagen, and interleukin β in fibroblasts are regulated by GO and released Zn2+, which can accelerate wound healing. Co‐irradiation produces an antibacterial ratio over 99.1% within a short time because of the synergistic effects of both photodynamic antibacterial and photothermal antibacterial treatments. The hyperthermia produced by 808 nm light illumination can weaken the bacterial activity. And these bacteria can be easily killed by membrane destruction, protein denaturation, and disruption of bacterial metabolic pathways due to reactive oxygen species produced under 660 nm light irradiation. This strategy of Zn2+ and GO modification can increase the antibacterial efficacy of SCN and accelerate wound healing at the same time, which makes this SCN‐Zn2+@GO be very promising in bacteria‐infected wound healing therapy.
Persistent Identifierhttp://hdl.handle.net/10722/278225
ISSN
2017 Impact Factor: 13.325
2015 SCImago Journal Rankings: 5.210

 

DC FieldValueLanguage
dc.contributor.authorLI, Y-
dc.contributor.authorLIU, X-
dc.contributor.authorTAN, L-
dc.contributor.authorCUI, Z-
dc.contributor.authorYANG, X-
dc.contributor.authorZHENG, Y-
dc.contributor.authorYeung, KWK-
dc.contributor.authorCHU, PK-
dc.contributor.authorWU, S-
dc.date.accessioned2019-10-04T08:09:54Z-
dc.date.available2019-10-04T08:09:54Z-
dc.date.issued2018-
dc.identifier.citationAdvanced Functional Materials, 2018, v. 28 n. 30, p. article no. 1800299-
dc.identifier.issn1616-301X-
dc.identifier.urihttp://hdl.handle.net/10722/278225-
dc.description.abstractWound healing is affected by bacterial infection and related inflammation, cell proliferation and differentiation, and tissue remodeling. Current antibiotics therapy cannot promote wound healing and kill bacteria at the same time. Herein, hybrid nanosheets of g‐C3N4‐Zn2+@graphene oxide (SCN‐Zn2+@GO) are prepared by combining Zn2+ doped sheet‐like g‐C3N4 with graphene oxide via electrostatic bonding and π–π stacking interactions to assist wound healing and kill bacteria simultaneously by short‐time exposure to 660 and 808 nm light. The gene expressions of matrix metalloproteinase‐2, type I collagen, type III collagen, and interleukin β in fibroblasts are regulated by GO and released Zn2+, which can accelerate wound healing. Co‐irradiation produces an antibacterial ratio over 99.1% within a short time because of the synergistic effects of both photodynamic antibacterial and photothermal antibacterial treatments. The hyperthermia produced by 808 nm light illumination can weaken the bacterial activity. And these bacteria can be easily killed by membrane destruction, protein denaturation, and disruption of bacterial metabolic pathways due to reactive oxygen species produced under 660 nm light irradiation. This strategy of Zn2+ and GO modification can increase the antibacterial efficacy of SCN and accelerate wound healing at the same time, which makes this SCN‐Zn2+@GO be very promising in bacteria‐infected wound healing therapy.-
dc.languageeng-
dc.publisherWiley - VCH Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.wiley-vch.de/home/afm-
dc.relation.ispartofAdvanced Functional Materials-
dc.rightsThis is the peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.-
dc.subjectantibacterials-
dc.subjectg‐C3N4-
dc.subjectphotodynamic therapy-
dc.subjectphotothermal therapy-
dc.subjectwound healing-
dc.titleRapid Sterilization and Accelerated Wound Healing Using Zn2+ and Graphene Oxide Modified g-C3N4 under Dual Light Irradiation-
dc.typeArticle-
dc.identifier.emailYeung, KWK: wkkyeung@hku.hk-
dc.identifier.authorityYeung, KWK=rp00309-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/adfm.201800299-
dc.identifier.scopuseid_2-s2.0-85047659193-
dc.identifier.hkuros306866-
dc.identifier.volume28-
dc.identifier.issue30-
dc.identifier.spagearticle no. 1800299-
dc.identifier.epagearticle no. 1800299-
dc.publisher.placeGermany-

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