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DOI | 10.1126/science.aao7172 |
Chiromagnetic nanoparticles and gels | |
Yeom, Jihyeon1,2; Santos, Uallisson S.3; Chekini, Mahshid2,4; Cha, Minjeong2,5; de Moura, Andre F.3; Kotov, Nicholas A.1,2,4,5,6 | |
2018-01-19 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2018 |
卷号 | 359期号:6373页码:309-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Brazil |
英文摘要 | Chiral inorganic nanostructures have high circular dichroism, but real-time control of their optical activity has so far been achieved only by irreversible chemical changes. Field modulation is a far more desirable path to chiroptical devices. We hypothesized that magnetic field modulation can be attained for chiral nanostructures with large contributions of the magnetic transition dipole moments to polarization rotation. We found that dispersions and gels of paramagnetic Co3O4 nanoparticles with chiral distortions of the crystal lattices exhibited chiroptical activity in the visible range that was 10 times as strong as that of nonparamagnetic nanoparticles of comparable size. Transparency of the nanoparticle gels to circularly polarized light beams in the ultraviolet range was reversibly modulated by magnetic fields. These phenomena were also observed for other nanoscale metal oxides with lattice distortions from imprinted amino acids and other chiral ligands. The large family of chiral ceramic nanostructures and gels can be pivotal for new technologies and knowledge at the nexus of chirality and magnetism. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000423236700035 |
WOS关键词 | MAGNETO-CHIRAL DICHROISM ; CIRCULARLY-POLARIZED LUMINESCENCE ; OPTICAL-ACTIVITY ; SILVER NANOCLUSTERS ; MCD SPECTROSCOPY ; FARADAY-ROTATION ; COBALT OXIDE ; QUANTUM DOTS ; NANOCRYSTALS ; MOLECULES |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/197803 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Michigan, Dept Macromol Sci & Engn, Ann Arbor, MI 48109 USA; 2.Univ Michigan, Biointerfaces Inst, Ann Arbor, MI 48109 USA; 3.Univ Fed Sao Carlos, Dept Chem, BR-13565905 Sao Carlos, SP, Brazil; 4.Univ Michigan, Dept Chem Engn, Ann Arbor, MI 48109 USA; 5.Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA; 6.Univ Michigan, Dept Biomed Engn, Ann Arbor, MI 48109 USA |
推荐引用方式 GB/T 7714 | Yeom, Jihyeon,Santos, Uallisson S.,Chekini, Mahshid,et al. Chiromagnetic nanoparticles and gels[J]. SCIENCE,2018,359(6373):309-+. |
APA | Yeom, Jihyeon,Santos, Uallisson S.,Chekini, Mahshid,Cha, Minjeong,de Moura, Andre F.,&Kotov, Nicholas A..(2018).Chiromagnetic nanoparticles and gels.SCIENCE,359(6373),309-+. |
MLA | Yeom, Jihyeon,et al."Chiromagnetic nanoparticles and gels".SCIENCE 359.6373(2018):309-+. |
条目包含的文件 | 条目无相关文件。 |
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