Cyclodextrin-assisted synthesis of tailored mesoporous silica nanoparticles

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buir.contributor.authorUyar, Tamer
buir.contributor.authorTopuz, Fuat
buir.contributor.orcidUyar, Tamer|0000-0002-3989-4481
dc.citation.epage703en_US
dc.citation.issueNumber1en_US
dc.citation.spage693en_US
dc.citation.volumeNumber9en_US
dc.contributor.authorTopuz, Fuaten_US
dc.contributor.authorUyar, Tameren_US
dc.date.accessioned2019-02-21T16:09:00Z
dc.date.available2019-02-21T16:09:00Z
dc.date.issued2018en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractMesoporous silica nanoparticles (MSNs) have sparked considerable interest in drug/gene delivery, catalysis, adsorption, separation, sensing, antireflection coatings and bioimaging because of their tunable structural properties. The shape, size and pore structure of MSNs are greatly influenced by the type of additives used, e.g., solvent and pore-templating agent. Here, we studied the influence of cyclodextrin (CD) molecules on the formation of MSNs. The nanoparticles over 100 nm in diameter were synthesized by surfactant- templated, hydrolysis-polycondensation reactions in the presence of pristine CD (β-CD) or hydroxypropyl-functionalized CDs (HP-γ-CD and HP-β-CD). Depending on the formulation conditions, differently shaped MSNs, such as bean-like, spherical, ellipsoid, aggregate and faceted were generated. The morphology and size of MSNs varied with the CD-type used. Generally, spherical particles were obtained with β-CD, while a faceted morphology was observed for the particles synthesized using HP-CDs. The particle size could be tuned by adjusting the amount of CD used; increasing the CD concentration led to larger particles. MSNs synthesized in the presence of β-CD displayed a smaller particle size than those produced with HP-functional CDs. FTIR, TGA and solidstate 13C NMR demonstrated the adsorption of CDs on the particle surfaces. The proposed concept allows for the synthesis of silica nanoparticles with control over particle shape and size by adjusting the concentration of additives in a simple, one-pot reaction system for a wide range of applications.
dc.identifier.doi10.3762/bjnano.9.64
dc.identifier.eissn2190-4286
dc.identifier.urihttp://hdl.handle.net/11693/50441
dc.language.isoEnglish
dc.publisherBeilstein-Institut Zur Forderung der Chemischen Wissenschaften
dc.relation.isversionofhttps://doi.org/10.3762/bjnano.9.64
dc.source.titleBeilstein Journal of Nanotechnologyen_US
dc.subjectCyclodextrinen_US
dc.subjectFaceted particlesen_US
dc.subjectMesoporous silica nanoparticles (MSN)en_US
dc.subjectMicroporousen_US
dc.titleCyclodextrin-assisted synthesis of tailored mesoporous silica nanoparticlesen_US
dc.typeArticleen_US

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