Publication:
A universal method for the preparation of magnetic and luminescent hybrid nanoparticles

dc.contributor.coauthorTopal, Uğur
dc.contributor.departmentDepartment of Chemistry
dc.contributor.departmentGraduate School of Sciences and Engineering
dc.contributor.kuauthorAcar, Havva Funda Yağcı
dc.contributor.kuauthorKaş, Recep
dc.contributor.kuauthorSevinç, Esra
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.contributor.schoolcollegeinstituteGRADUATE SCHOOL OF SCIENCES AND ENGINEERING
dc.date.accessioned2024-11-10T00:08:26Z
dc.date.issued2010
dc.description.abstractHybrid nanoparticles (MDOTs) composed of luminescent quantum dots (QDs) and superparamagnetic iron oxides (SPIOs) were prepared by the ligand-exchange mechanism in a simple and versatile extraction method. In this method, aqueous QDs (CdS or CdTe) coated with carboxylated ligands exchange the fatty acid (lauric acid) coating of SPIOs in a water chloroform extraction process. QDs form a coating around SPIOs and transfer them into the aqueous phase in high efficiency. The method worked successfully with both small and polymeric coating molecules selected as cysteine, 2-mercaptopropionic acid, and a poly(acrylic acid)/mercaptoacetic acid mixture. The original properties of the nanoparticles were well-preserved in the hybrid structures: All MDOTS showed ferrofluidic behavior and had a luminescence in the original color of the QD. Magnetic properties and the luminesence intensity of MDOTs can be easily tuned with the SPIO/QD ratio. All particles are small and show very good stability (optical and colloidal) over months. For stable MDOTs with good luminescence properties, highly luminescent aqueous QDs (CdS or CdTe) with the mentioned coatings were prepared. The first examples of CdTe coated with 2MPA emitting from green to red and CdTe-PAA/MAA were provided as well.
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.issue17
dc.description.openaccessNO
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.sponsorshipKoc University
dc.description.sponsorship[MIRG-CT-2005-031072] This work was partially supported by MIRG-CT-2005-031072 and Koc University. The authors thank Serdar Celebi at Eindhoven Institute of Technology for the TEM images.
dc.description.volume114
dc.identifier.doi10.1021/jp100312e
dc.identifier.eissn1932-7455
dc.identifier.issn1932-7447
dc.identifier.quartileQ2
dc.identifier.scopus2-s2.0-77951899420
dc.identifier.urihttps://doi.org/10.1021/jp100312e
dc.identifier.urihttps://hdl.handle.net/20.500.14288/16954
dc.identifier.wos277053600035
dc.keywordsSuperparamagnetic iron-oxide
dc.keywordsCdse quantum dots
dc.keywordsNanocomposite particles
dc.keywordsBiological applications
dc.keywordsBiomedical applications
dc.keywordsCancer-treatment
dc.keywordsGeneral-approach
dc.keywordsLigand-exchange
dc.keywordsNanocrystals
dc.keywordsFluorescent
dc.language.isoeng
dc.publisherAmerican Chemical Society (ACS)
dc.relation.ispartofJournal of Physical Chemistry C
dc.subjectChemistry
dc.subjectPhysical chemistry
dc.subjectNanoscience
dc.subjectNanotechnology
dc.subjectMaterials science
dc.titleA universal method for the preparation of magnetic and luminescent hybrid nanoparticles
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorKaş, Recep
local.contributor.kuauthorSevinç, Esra
local.contributor.kuauthorAcar, Havva Funda Yağcı
local.publication.orgunit1GRADUATE SCHOOL OF SCIENCES AND ENGINEERING
local.publication.orgunit1College of Sciences
local.publication.orgunit2Department of Chemistry
local.publication.orgunit2Graduate School of Sciences and Engineering
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