Department of Chemistry and Advanced Research Center of Green Materials Science and Technology, National Taiwan University, Taipei, 106, Taiwan.
Genomics Research Center, Academia Sinica, Taipei, 106, Taiwan.
Angew Chem Int Ed Engl. 2021 Mar 22;60(13):6955-6959. doi: 10.1002/anie.202015659. Epub 2021 Feb 24.
Light-harvesting and conversion ability is important to promote plant growth, and especially when resources are limited. A near-infrared (NIR) nanophosphor embedded with mesoporous silica nanoparticles (MSN), ZnGa O :Cr ,Sn (ZGOCS), was developed and its optical properties were harnessed to enhance the photosynthetic ability of Brassica rapa spp. chinensis. The broad excitation of ZGOCS from the ultraviolet to the visible region allowed the conversion of extra light into near-infrared light (650-800 nm) and thus promoted the dual photosystem via the Emerson effect. ZGOCS@MSN was spherical with a size of 65±10 nm and good dispersion. A light conversion ability of up to 75 % under different wavelengths was achieved. Moreover, the electron transfer rate of photosynthesis increased by 100 % with a suitable ZGOCS@MSN concentration. Plant and animal models were used to explore the effects of the nanophosphor. ZGOCS@MSN distribution was tracked by monitoring its NIR emission in plant and animal tissues, demonstrating that this nanophosphor can be potentially utilized in plant growth.
捕光和转化能力对于促进植物生长很重要，特别是在资源有限的情况下。本研究开发了一种近红外（NIR）纳米荧光粉，其内部嵌入了介孔硅纳米颗粒（MSN）、ZnGaO:Cr，Sn（ZGOCS），并利用其光学特性来增强 Brassica rapa spp. chinensis 的光合作用能力。ZGOCS 在从紫外到可见区域的宽激发范围允许将额外的光转换为近红外光（650-800nm），从而通过 Emerson 效应促进双光系统。ZGOCS@MSN 呈球形，尺寸为 65±10nm，具有良好的分散性。在不同波长下实现了高达 75%的光转换能力。此外，适当浓度的 ZGOCS@MSN 可将光合作用的电子转移速率提高 100%。利用植物和动物模型来探索纳米荧光粉的效果。通过监测植物和动物组织中近红外发射来跟踪 ZGOCS@MSN 的分布，表明这种纳米荧光粉可在植物生长中得到潜在应用。
