Publication:
Femtosecond laser-mediated preparation of HfNbTaTiZr refractory high-entropy alloy nanoparticles for photothermal therapy applications: influence of solvent and fluence

dc.contributor.coauthorGuo, Sheng
dc.contributor.departmentDepartment of Chemistry
dc.contributor.departmentDepartment of Physics
dc.contributor.departmentGraduate School of Sciences and Engineering
dc.contributor.departmentKUYTAM (Koç University Surface Science and Technology Center)
dc.contributor.kuauthorAlamdari, Armin Asghari
dc.contributor.kuauthorEroğlu, Zafer
dc.contributor.kuauthorJahangiri, Hadi
dc.contributor.kuauthorMetin, Önder
dc.contributor.kuauthorMorova, Yağız
dc.contributor.kuauthorMotallebzadeh, Amir
dc.contributor.kuauthorSennaroğlu, Alphan
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.contributor.schoolcollegeinstituteGRADUATE SCHOOL OF SCIENCES AND ENGINEERING
dc.contributor.schoolcollegeinstituteResearch Center
dc.date.accessioned2024-11-10T00:08:56Z
dc.date.issued2023
dc.description.abstractNanoparticles (NPs) have become popular photothermal therapy (PTT) photosensitizers because they can be targeted to cancer tissues and deliver a chemotherapeutic medication. Pulsed laser ablation in liquid media (PLAL) can produce stable colloidal NPs without any stabilizing agents. The stability, size distribution, and morphology of the produced colloids are influenced by the nature of NPs, laser parameters such as laser power, laser frequency repetition, ablation rate, and the specific ionic effects from the solvent. In this work, HfNbTaTiZr refractory high entropy alloy (RHEA) NPs were prepared by PLAL method in different solvents, including distilled water, ethanol, and n-hexane. The experiments were performed by irradiating a HfNbTaTiZr target with a femtosecond laser outputting 120-fs pulse at varying levels of ablation fluence (0.1, 0.16, 0.23 mJ/cm2). The elemental and structural characteristics of the prepared HfNbTaTiZr NPs were elucidated by using several advanced analytical techniques. The XRD pattern of NPs revealed that the liquid medium significantly affects the type of crystallized phases and the surface composition. The surface composition was studied by XPS, indicating that the fabricated NPs were oxidized. SEM and TEM analysis have evidenced the generation of NPs with an average diameter of less than 50 nm. The results revealed that the higher ablation fluence resulted in the formation of NPs with a larger average diameter. The highest intrinsic photothermal conversion efficiency and 12 °C time-dependent solvent heating produced in ethanol at 640 nm irradiation after 20 min were demonstrated.
dc.description.indexedbyScopus
dc.description.indexedbyWOS
dc.description.openaccessYES
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.volume156
dc.identifier.doi10.1016/j.intermet.2023.107834
dc.identifier.issn0966-9795
dc.identifier.scopus2-s2.0-85148321670
dc.identifier.urihttps://doi.org/10.1016/j.intermet.2023.107834
dc.identifier.urihttps://hdl.handle.net/20.500.14288/17043
dc.identifier.wos954859100001
dc.keywordsNanoparticles
dc.keywordsPhotothermal therapy
dc.keywordsPulse laser ablation
dc.keywordsRefractory high-entropy alloy
dc.keywordsSolvent effect ablation
dc.keywordsConversion efficiency
dc.keywordsEntropy
dc.keywordsEthanol
dc.keywordsFemtosecond lasers
dc.keywordsHexane
dc.keywordsHigh-entropy alloys
dc.keywordsMorphology
dc.keywordsOrganic solvents
dc.keywordsPhotosensitizers
dc.keywordsSols
dc.keywordsTitanium alloys
dc.keywordsAlloy nanoparticle
dc.keywordsAverage diameter
dc.keywordsFluences
dc.keywordsHigh entropy alloys
dc.keywordsLiquid media
dc.keywordsPhotothermal therapy
dc.keywordsPulse laser ablation
dc.keywordsPulsed laser ablation in liquids
dc.keywordsRefractory high-entropy alloy
dc.keywordsSolvent effects
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofIntermetallics
dc.subjectChemistry, Physics
dc.subjectMaterials Science
dc.subjectMetallurgy
dc.titleFemtosecond laser-mediated preparation of HfNbTaTiZr refractory high-entropy alloy nanoparticles for photothermal therapy applications: influence of solvent and fluence
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorSennaroğlu, Alphan
local.contributor.kuauthorMorova, Yağız
local.contributor.kuauthorAlamdari, Armin Asghari
local.contributor.kuauthorEroğlu, Zafer
local.contributor.kuauthorMetin, Önder
local.contributor.kuauthorMotallebzadeh, Amir
local.contributor.kuauthorJahangiri, Hadi
local.publication.orgunit1College of Sciences
local.publication.orgunit1GRADUATE SCHOOL OF SCIENCES AND ENGINEERING
local.publication.orgunit1Research Center
local.publication.orgunit2Department of Physics
local.publication.orgunit2Department of Chemistry
local.publication.orgunit2KUYTAM (Koç University Surface Science and Technology Center)
local.publication.orgunit2Graduate School of Sciences and Engineering
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