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Article: Enhanced photocatalytic activity and photothermal effects of cu-doped metal-organic frameworks for rapid treatment of bacteria-infected wounds

TitleEnhanced photocatalytic activity and photothermal effects of cu-doped metal-organic frameworks for rapid treatment of bacteria-infected wounds
Authors
KeywordsMetal-organic framework
Cu doping
Antibacterial
Photocatalytic
Photothermal
Issue Date2020
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/apcatb
Citation
Applied Catalysis B: Environmental, 2020, v. 261, p. article no. 118248 How to Cite?
AbstractOwing to the increasing drug-resistance, antibiotics-free strategy is urgent for the therapy of bacterial infections. Herein, Cu2+ is introduced into the porphyrin ring of PCN 224, which enhances the photocatalytic property of MOFs. The doped Cu2+ could trap electrons, thus suppresses electron-hole recombination and accelerates the transfer of carriers under 660 nm light irradiation, thereby enhancing the yields of reactive oxygen species (ROS). Furthermore, the Cu-MOFs’ photothermal effect is strengthened due to the d–d transition. However, overdoping of Cu2+ weakens the photocatalytic and photothermal properties due to the trapping of more photo-electrons by Cu2+ and the decreased light absorption of porphyrin at 660 nm. Doping with 10% Cu2+ endows the MOFs with the best antibacterial efficacy of 99.71% against Staphylococcus aureus within 20 min because of the synergistic effects of ROS and heat. Furthermore, the in vivo results show that Cu2+-MOFs kill bacteria efficiently, thus accelerating wound healing.
Persistent Identifierhttp://hdl.handle.net/10722/289802
ISSN
2019 Impact Factor: 16.683
2015 SCImago Journal Rankings: 2.322

 

DC FieldValueLanguage
dc.contributor.authorHAN, D-
dc.contributor.authorHAN, Y-
dc.contributor.authorLI, J-
dc.contributor.authorLIU, X-
dc.contributor.authorYeung, KWK-
dc.contributor.authorZHENG, YF-
dc.contributor.authorCUI, Z-
dc.contributor.authorYANG, X-
dc.contributor.authorLIANG, Y-
dc.contributor.authorLI, Z-
dc.contributor.authorZHU, S-
dc.contributor.authorYUAN, X-
dc.contributor.authorFENG, X-
dc.contributor.authorYANG, C-
dc.contributor.authorWU, S-
dc.date.accessioned2020-10-22T08:17:41Z-
dc.date.available2020-10-22T08:17:41Z-
dc.date.issued2020-
dc.identifier.citationApplied Catalysis B: Environmental, 2020, v. 261, p. article no. 118248-
dc.identifier.issn0926-3373-
dc.identifier.urihttp://hdl.handle.net/10722/289802-
dc.description.abstractOwing to the increasing drug-resistance, antibiotics-free strategy is urgent for the therapy of bacterial infections. Herein, Cu2+ is introduced into the porphyrin ring of PCN 224, which enhances the photocatalytic property of MOFs. The doped Cu2+ could trap electrons, thus suppresses electron-hole recombination and accelerates the transfer of carriers under 660 nm light irradiation, thereby enhancing the yields of reactive oxygen species (ROS). Furthermore, the Cu-MOFs’ photothermal effect is strengthened due to the d–d transition. However, overdoping of Cu2+ weakens the photocatalytic and photothermal properties due to the trapping of more photo-electrons by Cu2+ and the decreased light absorption of porphyrin at 660 nm. Doping with 10% Cu2+ endows the MOFs with the best antibacterial efficacy of 99.71% against Staphylococcus aureus within 20 min because of the synergistic effects of ROS and heat. Furthermore, the in vivo results show that Cu2+-MOFs kill bacteria efficiently, thus accelerating wound healing.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/apcatb-
dc.relation.ispartofApplied Catalysis B: Environmental-
dc.subjectMetal-organic framework-
dc.subjectCu doping-
dc.subjectAntibacterial-
dc.subjectPhotocatalytic-
dc.subjectPhotothermal-
dc.titleEnhanced photocatalytic activity and photothermal effects of cu-doped metal-organic frameworks for rapid treatment of bacteria-infected wounds-
dc.typeArticle-
dc.identifier.emailYeung, KWK: wkkyeung@hku.hk-
dc.identifier.authorityYeung, KWK=rp00309-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.apcatb.2019.118248-
dc.identifier.scopuseid_2-s2.0-85073255913-
dc.identifier.hkuros316860-
dc.identifier.volume261-
dc.identifier.spagearticle no. 118248-
dc.identifier.epagearticle no. 118248-
dc.publisher.placeNetherlands-

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