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Article: Photo-responsive chitosan/Ag/MoS2 for rapid bacteria-killing

TitlePhoto-responsive chitosan/Ag/MoS2 for rapid bacteria-killing
Authors
KeywordsAntibacterial
Implant
Photocatalytic
Surface modification
MoS2
Issue Date2020
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jhazmat
Citation
Journal of Hazardous Materials, 2020, v. 383, p. article no. 121122 How to Cite?
AbstractBacterial infection is a serious problem threatening human health. The chitosan (CS)-modified MoS2 coating loaded with silver nanoparticles (Ag NPs) was designed on the surface of titanium (Ti) to kill bacteria rapidly and efficiently under 660 nm visible light. Ag/MoS2 exhibited high photocatalytic activity due to the rapid transfer of photo-inspired electrons from MoS2 to Ag NPs, resulting in higher yields of radical oxygen species (ROS) to kill bacteria. The covering of CS made the composite coating positively charged to further enhance the antibacterial property of the coating. In addition, CS/Ag/MoS2-Ti also showed a certain photothermal effect. in vitro results showed that the antibacterial efficiency of the coating on Staphylococcus aureus and Escherichia coli was 98.66% and 99.77% respectively, when the coating was irradiated by 660 nm visible light for 20 min. Cell culture tests showed that CS/Ag/MoS2-Ti had no adverse effects on cell growth. Hence, this surface system will be a very promising strategy for eliminating bacterial infection on biomedical device and implants safely and effectively within a short time.
Persistent Identifierhttp://hdl.handle.net/10722/289804
ISSN
2019 Impact Factor: 9.038
2015 SCImago Journal Rankings: 1.692

 

DC FieldValueLanguage
dc.contributor.authorZHU, M-
dc.contributor.authorLIU, X-
dc.contributor.authorTAN, L-
dc.contributor.authorCUI, Z-
dc.contributor.authorLIANG, Y-
dc.contributor.authorLI, Z-
dc.contributor.authorYeung, KWK-
dc.contributor.authorWU, S-
dc.date.accessioned2020-10-22T08:17:43Z-
dc.date.available2020-10-22T08:17:43Z-
dc.date.issued2020-
dc.identifier.citationJournal of Hazardous Materials, 2020, v. 383, p. article no. 121122-
dc.identifier.issn0304-3894-
dc.identifier.urihttp://hdl.handle.net/10722/289804-
dc.description.abstractBacterial infection is a serious problem threatening human health. The chitosan (CS)-modified MoS2 coating loaded with silver nanoparticles (Ag NPs) was designed on the surface of titanium (Ti) to kill bacteria rapidly and efficiently under 660 nm visible light. Ag/MoS2 exhibited high photocatalytic activity due to the rapid transfer of photo-inspired electrons from MoS2 to Ag NPs, resulting in higher yields of radical oxygen species (ROS) to kill bacteria. The covering of CS made the composite coating positively charged to further enhance the antibacterial property of the coating. In addition, CS/Ag/MoS2-Ti also showed a certain photothermal effect. in vitro results showed that the antibacterial efficiency of the coating on Staphylococcus aureus and Escherichia coli was 98.66% and 99.77% respectively, when the coating was irradiated by 660 nm visible light for 20 min. Cell culture tests showed that CS/Ag/MoS2-Ti had no adverse effects on cell growth. Hence, this surface system will be a very promising strategy for eliminating bacterial infection on biomedical device and implants safely and effectively within a short time.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jhazmat-
dc.relation.ispartofJournal of Hazardous Materials-
dc.subjectAntibacterial-
dc.subjectImplant-
dc.subjectPhotocatalytic-
dc.subjectSurface modification-
dc.subjectMoS2-
dc.titlePhoto-responsive chitosan/Ag/MoS2 for rapid bacteria-killing-
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.jhazmat.2019.121122-
dc.identifier.pmid31518801-
dc.identifier.scopuseid_2-s2.0-85071955917-
dc.identifier.hkuros317542-
dc.identifier.volume383-
dc.identifier.spagearticle no. 121122-
dc.identifier.epagearticle no. 121122-
dc.publisher.placeNetherlands-

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