2022 Fiscal Year Final Research Report
Preparation of Janus-type composite rare-earth photocatalysts for cancer treatment using near-infrared light
| Project/Area Number |
20K15979
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 47020:Pharmaceutical analytical chemistry and physicochemistry-related
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| Research Institution | Hyogo Medical University (2022)
Hyogo University of Health Sciences (2020-2021) |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | ナノ結晶 / 希土類 / 光触媒 / 複合体 |
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| Outline of Final Research Achievements |
We have investigated the fabrication of rare-earth nanocomposites with an anisotropic structure (Janus-type structure) that looks like it has two faces. Rare-earth nanocrystals with various properties were synthesized in oleylamine, and their direct bonding produced Janus-type nanocomposites. By changing the synthesis time of nanocrystals, the generated nanocrystals were further bonded and a network-like shape was observed. Furthermore, in Janus-type nanocomposites composed of different rare-earth nanocrystals, changes in physical properties were observed with combination and reaction time. In particular, when europium (Eu) fluoride nanocrystals are combined, enhancement of luminescence due to light absorption due to Eu divalence was observed, and a change in properties was achieved by compositing different nanocrystals.
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| Free Research Field |
物理化学
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| Academic Significance and Societal Importance of the Research Achievements |
本研究は異なる希土類ナノ結晶同士を結合させて複合化させることで複数の物性の相乗効果を発現させるということが目的である。この方法の特徴の一つはまず個別のナノ結晶を合成して、それらを混ぜ合わせて作製することであり、そのために、自由自在にナノ結晶の組み合わせを設計することが可能となる。本研究により発光の増強を達成したことは、13種類ある希土類元素について、様々な組み合わせと物性の変化が期待できると考えている。また特徴の二つ目として、ネットワーク構造を形成する点があり、構造の内部に有害な物質を取り込むことができる可能性が示唆された。
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