Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 유원철 | - |
dc.date.accessioned | 2019-05-14T07:19:58Z | - |
dc.date.available | 2019-05-14T07:19:58Z | - |
dc.date.issued | 2009-12 | - |
dc.identifier.citation | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v. 131, No. 51, Page. 18548-18555 | en_US |
dc.identifier.issn | 0002-7863 | - |
dc.identifier.uri | https://pubs.acs.org/doi/abs/10.1021/ja908364k | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/104239 | - |
dc.description.abstract | Multipodal nanoparticles (NPs) with controlled tethers are promising principal building blocks, useful for constructing more complex materials, much like atoms are connected into more complex molecules. Here we report colloidal sphere templating as a viable means to create tetrapodal NPs with site-specific tethers. Amorphous sol-gel materials were molded by the template into shaped NPs that mimic tetravalent atoms but on the length scale of colloids. Synthetic methods were developed to modify only the tips of the tetrapods with a range of possible functional groups to generate anisotropic NPs capable of directional bonding to other NPs. We also illustrate that sets of tethered "colloidal atoms" can assemble themselves into "colloidal molecules" with precise placement of the modifying colloids. The templating and tethering approaches to these anisotropic colloidal building blocks and the assembly methods are applicable to many compositions regardless of crystal structure, therefore lending themselves to the fabrication of complex assemblies, analogous to those found in the molecular regime. | en_US |
dc.description.sponsorship | This work was financially supported by the National Science Foundation (DMR-0704312). Parts of this work were carried out in the University of Minnesota Characterization Facility and Nanofabrication Center, which receive partial support from the NSF through the MRSEC, ERC, MRI, and NNIN programs. NMR instrumentation was provided with funds from the NSF (BIR-961477), the University of Minnesota Medical School, and the Minnesota Medical Foundation. The authors thank Prof. Tsapatis and Wei Fan for donating colloidal silica spheres and for assistance with dynamic light scattering experiments, and Prof. Talon and Alexi Young for taking fluorescence spectra. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | AMER CHEMICAL SOC | en_US |
dc.subject | DYNAMIC LIGHT-SCATTERING | en_US |
dc.subject | PHOTONIC CRYSTALS | en_US |
dc.subject | BUILDING-BLOCKS | en_US |
dc.subject | COMPLEX | en_US |
dc.subject | NANOSTRUCTURES | en_US |
dc.subject | NANOCRYSTALS | en_US |
dc.subject | ORGANIZATION | en_US |
dc.subject | MONOLAYERS | en_US |
dc.subject | PARTICLES | en_US |
dc.subject | CHEMISTRY | en_US |
dc.title | Site-Specific Functionalization of Anisotropic Nanoparticles: From Colloidal Atoms to Colloidal Molecules | en_US |
dc.type | Article | en_US |
dc.relation.no | 51 | - |
dc.relation.volume | 131 | - |
dc.identifier.doi | 10.1021/ja908364k | - |
dc.relation.page | 18548-18555 | - |
dc.relation.journal | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.contributor.googleauthor | Li, Fan | - |
dc.contributor.googleauthor | Yoo, Won Cheol | - |
dc.contributor.googleauthor | Beernink, Molly B. | - |
dc.contributor.googleauthor | Stein, Andreas | - |
dc.relation.code | 2009205895 | - |
dc.sector.campus | E | - |
dc.sector.daehak | COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E] | - |
dc.sector.department | DEPARTMENT OF CHEMICAL AND MOLECULAR ENGINEERING | - |
dc.identifier.pid | wcyoo | - |
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