Photonic Reactions Leading to Fluorescence in a Polymeric System Induced by the Photothermal Effect of Magnetite Nanoparticles Using a 780 nm Multiphoton Laser
- Authors
- Park, Bum Chul; Kim, Hee-Dae; Park, June; Kim, Yu Jin; Kim, Young Keun
- Issue Date
- 4-10월-2017
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- Fe3O4 nanoparticles; fluorescence; interactions; photothermal effect; polymers
- Citation
- SMALL, v.13, no.37
- Indexed
- SCIE
SCOPUS
- Journal Title
- SMALL
- Volume
- 13
- Number
- 37
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/81940
- DOI
- 10.1002/smll.201700897
- ISSN
- 1613-6810
- Abstract
- Recently, polymer-coated magnetite (Fe3O4) nanoparticles (NPs) are extensively studied for applications in therapeutics or diagnostics using photothermal effect. Therefore, it is essential to understand the interactions between Fe3O4 NPs and polymers when optical stimuli are applied. Herein, the photonic reactions of Fe3O4 NPs and polymer composites upon application of a 780 nm multiphoton laser are analyzed. The photonic reactions produce unique results including fluorescence from conformationally changed polymer and low-temperature phase transformation of Fe3O4 NPs. Typically, -conjugated chains are formed, inducing fluorescence through a series of main and side-chain cleavage reactions of polymers with the aliphatic chain. In addition, fluorescence is detected in the cellular system by photonic reactions between Fe3O4 NPs and biomolecules. After multiphoton laser irradiation, light emission is detected near the intracellular Fe3O4 NPs, and a stronger intensity is observed in large-sized NPs.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.