Plasmonic Enhanced Nonlinear Absorption of Tris(2-aminoethyl)amine (TREN) Functional Ag, Pt, and Pd Nanoparticle-GQDs Complexes and Their Evaluation as Potential Bioimaging Applications

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dc.authorid0000-0003-2712-7450
dc.authorid0000-0002-6601-8743
dc.authorid0000-0001-9373-801X
dc.contributor.authorUnlu, Bekir Asilcan
dc.contributor.authorKirit, Esen
dc.contributor.authorCelik, Dogantan
dc.contributor.authorYildiz, Elif Akhuseyin
dc.contributor.authorKaratay, Ahmet
dc.contributor.authorBoyacioglu, Bahadir
dc.contributor.authorUnver, Huseyin
dc.date.accessioned2026-02-03T12:02:30Z
dc.date.available2026-02-03T12:02:30Z
dc.date.issued2025
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractTris (2-aminoethyl)amine (TREN) functionalized N-doped graphene quantum dots (N-GQDs) and their Ag, Pd, and Pt nanocomposites were synthesized via a green one-step method and comprehensively characterized using FT-IR, UV-vis, TEM, and EDX. Spectroscopic analysis revealed pi-pi* transitions of C=C bonds (245-250 nm) and n-pi* transitions of C=O and C=N bonds (334-350 nm), elucidating the materials' optical properties. Photoluminescence studies revealed excitation wavelength-dependent emissions, indicating the presence of edge defect levels. Femtosecond transient absorption spectroscopy revealed a shortened excited-state lifetime upon incorporation of a metal atom into TREN-GQDs. Nonlinear absorption was explored by using the open-aperture Z-scan method, revealing enhanced performance upon incorporation of plasmonic nanoparticles. Ag-incorporated samples exhibited the highest NLA response due to plasmon-enhanced two-photon absorption. Notably, Pt-incorporated N-GQDs showed improved NLA and good biocompatibility with the intracellular fluorescence response, positioning them as promising candidates for bioimaging applications. Density functional theory (DFT) calculations, including gas-phase optimizations and aqueous simulations, confirmed alignment with experimental results, highlighting the enhanced stability and reactivity of nanocomposites. These findings highlight the potential of these materials in various applications, such as optical limiting, imaging, photovoltaics, and sensing applications.
dc.description.sponsorshipT?rkiye Bilimsel ve Teknolojik Arastirma Kurumu [122F211]
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK)
dc.description.sponsorshipTUBITAK
dc.description.sponsorshipThis study was supported by the Scientific and Technological Research Council of Turkey (TUBITAK) under Grant Number 122F211. The authors thank TUBITAK for their support. The numerical calculations reported in this paper were fully performed at TUBITAK ULAKBIM, High Performance and Grid Computing Center (TRUBA resources).
dc.identifier.doi10.1021/acsabm.5c00750
dc.identifier.endpage6277
dc.identifier.issn2576-6422
dc.identifier.issue7
dc.identifier.pmid40590129
dc.identifier.scopus2-s2.0-105009509377
dc.identifier.scopusqualityQ1
dc.identifier.startpage6261
dc.identifier.urihttps://doi.org/10.1021/acsabm.5c00750
dc.identifier.urihttps://hdl.handle.net/20.500.12428/34783
dc.identifier.volume8
dc.identifier.wosWOS:001521238300001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherAmer Chemical Soc
dc.relation.ispartofAcs Applied Bio Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20260130
dc.subjecttris(2-aminoethyl)amine (TREN)
dc.subjectN-GQDs
dc.subjectmetalnanocomposites
dc.subjectultrafast spectroscopy
dc.subjectbioimaging
dc.subjectDFT
dc.titlePlasmonic Enhanced Nonlinear Absorption of Tris(2-aminoethyl)amine (TREN) Functional Ag, Pt, and Pd Nanoparticle-GQDs Complexes and Their Evaluation as Potential Bioimaging Applications
dc.typeArticle

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