Ultrafast Pulsed Laser Induced Nanocrystal Transformation in Colloidal Plasmonic Vesicles

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dc.contributor.ORCID0000-0003-3406-3045 (Qin, Z)
dc.contributor.VIAF295272933 (Qian, D)
dc.contributor.authorKarim, Mohammad R.
dc.contributor.authorLi, Xiuying
dc.contributor.authorKang, Peiyuan
dc.contributor.authorKang, Peiyuan
dc.contributor.authorRandrianalisoa, J.
dc.contributor.authorRanathunga, Dineli
dc.contributor.authorNielsen, Steven O.
dc.contributor.authorQin, Zhenpeng
dc.contributor.authorQian, Dong
dc.contributor.utdAuthorKarim, Mohammad R.
dc.contributor.utdAuthorLi, Xiuying
dc.contributor.utdAuthorRanathunga, Dineli
dc.contributor.utdAuthorNielsen, Steven O.
dc.contributor.utdAuthorQin, Zhenpeng
dc.contributor.utdAuthorQian, Dong
dc.date.accessioned2019-08-22T18:46:37Z
dc.date.available2019-08-22T18:46:37Z
dc.date.created2018-09-02
dc.descriptionFull text access from Treasures at UT Dallas is restricted to current UTD affiliates (use the provided Link to Article).
dc.description.abstractPlasmonic vesicle consists of multiple gold nanocrystals within a polymer coating or around a phospholipid core. As a multifunctional nanostructure, it has unique advantages of assembling small nanoparticles (< 5 nm) for rapid renal clearance, strong plasmonic coupling for ultrasensitive biosensing and imaging, and near-infrared light absorption for drug release. Thus, understanding the interaction of plasmonic vesicles with light is critically important for a wide range of applications. In this paper, a combined experimental and computational study is presented on the nanocrystal transformation in colloidal plasmonic vesicles induced by the ultrafast picosecond pulsed laser. Experimentally observed merging and transformation of small nanocrystals into larger nanoparticles when treated by laser pulses is first reported. The underlying mechanisms responsible for the experimental observations are investigated with a multiphysics computational approach featuring coupled electromagnetic/molecular dynamics simulation. This study reveals for the first time that combined nanoparticle heating and laser-enhanced Brownian motion is responsible for the observed nanocrystal merging. Correspondingly, laser fluence, interparticle distance, and presence of water are identified as the most important factors governing the nanocrystal transformation. The guidelines established from this study can be employed to design a host of biomedical and nanomanufacturing applications involving laser interaction with plasmonic nanoparticles.
dc.description.departmentErik Jonsson School of Engineering and Computer Science
dc.description.sponsorshipThis study was partially supported by a Cancer Prevention and Research Institute of Texas grant (CPRIT, RP160770), National Science Foundation grants (1631910, 1727960), Phospholipid Research Center (Heidelberg, Germany) (no. 1603574).
dc.identifier.bibliographicCitationKarim, M. R., X. Li, P. Kang, J. Randrianalisoa, et al. 2018. "Ultrafast Pulsed Laser Induced Nanocrystal Transformation in Colloidal Plasmonic Vesicles." Advanced Optical Materials 6(21): art. 1800726, doi:10.1002/adom.201800726
dc.identifier.issn2195-1071
dc.identifier.issue21
dc.identifier.urihttps://hdl.handle.net/10735.1/6788
dc.identifier.volume6
dc.language.isoen
dc.publisherWiley-VCH Verlag
dc.relation.urihttp://dx.doi.org/10.1002/adom.201800726
dc.rights©2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
dc.source.journalAdvanced Optical Materials
dc.subjectNanoparticles
dc.subjectLigands
dc.subjectBrownian movements
dc.subjectColloids
dc.subjectComputational electromagnetism
dc.subjectDrug delivery systems
dc.subjectElectromagnetic simulation
dc.subjectGold coatings
dc.subjectInfrared equipment
dc.subjectLight absorption
dc.subjectNanocrystals
dc.subjectPhospholipids
dc.subjectPlasmonics
dc.subjectPlasmons (Physics)
dc.subjectPlastic coatings
dc.subjectLasers
dc.titleUltrafast Pulsed Laser Induced Nanocrystal Transformation in Colloidal Plasmonic Vesicles
dc.type.genrearticle

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Qian, Dong
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