Near-infrared Irradiation and Graphene Oxide Film Fabricated on Dentin Surface Exhibit Photothermal and Antibacterial Effects

Nagao, Keishi; Miyaji, Hirofumi; Nishida, Erika; Akasaka, Tsukasa; Miyata, Sumiko; Shitomi, Kanako; Mayumi, Kayoko; Sugaya, Tsutomu

doi:10.4172/2332-0702.1000231

Cited by 4 publications

(3 citation statements)

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“…A three‐component composite made up of cobalt ferrite, silver nanoparticles, and graphene oxide synthesized and utilized to study the antibacterial activity after being combined with ciprofloxacin drug . The effect of GO as antibacterial agent has been studied toward bacteria like S. mutans , Escherichia coli ,[230,254a‐k] Pseudomonas aeruginosa ,[255,254i] Staphylococcus aureus ,[254c,e,f,h,i,k,256,230] Klebseilla , and Bacillus subtilis . [254j]…”

Section: Biomedical Applicationsmentioning

confidence: 99%

Graphene and Graphene‐Based Materials in Biomedical Science

Swetha

Manisha

Prasad

2018

Part & Part Syst Charact

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Graphene and its composite materials are very important in many disciplines of science and have been used enormously by researchers since their discovery in 2004. These are a new group of compounds, and are also wonderful model systems for quantum behavior studies. Their properties like exceptional conductivity, biocompatibility, surface area, mechanical strength, and thermal properties make them rising stars in the scientific community. Graphene and its composite compounds are utilized widely in different medical applications, for example, biosensing of biological compounds responsible for disease development, bioimaging of various cells, tissues, microorganisms, animal models, etc. In addition, they are used for enhancing and supporting the stem cell differentiation, i.e., regenerative medicine for regeneration studies of various human organs, tissue engineering in biology for the development of carrier materials, as well as in bone reformation. This review focuses on the modification procedure involved in the fabrication of graphene‐based biomaterials for various applications and recent developments in research related to graphene and graphene‐based materials in biosensing, optical sensing, gas sensing, drug, gene, protein delivery, tissue engineering, and bioimaging. In addition, the potential toxicological effects of graphene‐based biomaterials are discussed.

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Section: Biomedical Applicationsmentioning

confidence: 99%

Graphene and Graphene‐Based Materials in Biomedical Science

Swetha

Manisha

Prasad

2018

Part & Part Syst Charact

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“…Antibacterial capabilities of the ZnO microtube and ZnO/GO PAA against E. coli and S. aureus were estimated via the turbidity method. 37 The antimicrobial effect was positively correlated with contact time between PAA and bacteria, as shown in Figure 4a,b. For E. coli, the turbidities of ZnO microtube PAA and ZnO/GO PAA decreased from 1.0517 ± 0.0344 to 0.2767 ± 0.0309 and 0.1333 ± 0.0170 MCF, respectively.…”

Section: ■ Results and Discussionmentioning

confidence: 83%

“…coli and S. aureus were estimated via the turbidity method . The antimicrobial effect was positively correlated with contact time between PAA and bacteria, as shown in Figure a,b.…”

Section: Resultsmentioning

confidence: 89%

Graphene Oxide Modified Microtubular ZnO Antibacterial Agents for a Photocatalytic Filter in a Facial Mask

Zhang

Chen

Jiang

et al. 2022

ACS Appl. Nano Mater.

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Bacterial infections have threatened human health significantly due to the misuse of antibiotics and iterations of multi-drug-resistant bacteria. Inorganic antimicrobial ZnO agents can effectively solve the bacterial drug resistance and play an important role as commonly used photocatalysts in the fields of antibacterial, water purification, and air purification. Herein, graphene oxide (GO) modified ZnO microtubular composite photocatalytic antimicrobial agents (PAA) were fabricated via the optical vapor phase supersaturation and drop-spraying method, by which the photocatalytic activity was boosted and achieved more than 98% antimicrobial activity against Escherichia coli and Staphylococcus aureus under sunlight irradiation. The ZnO/GO PAA can further combine with a polypropylene-based photocatalytic filter for high antibacterial activity, rapid sterilization, and well reusability. Under a UV irradiation of ∼150 s, the antibacterial efficiency of a filter modified facial mask (F-Mask) degrades particles and bacteria up to 100%. The photocatalytic antibacterial F-Mask exhibits outstanding mechanical flexibility for over 300 bending cycles. This work provides a platform for the design of antibacterial filter materials to alleviate the social epidemic prevention pressure during the period of large-scale epidemics.

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