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Preselectable Optical Fingerprints of Heterogeneous Upconversion Nanoparticles
Nano Letters ( IF 9.6 ) Pub Date : 2021-08-18 , DOI: 10.1021/acs.nanolett.1c02404 Jiayan Liao 1 , Jiajia Zhou 1 , Yiliao Song 2 , Baolei Liu 1 , Yinghui Chen 1 , Fan Wang 1 , Chaohao Chen 1 , Jun Lin 3 , Xueyuan Chen 4 , Jie Lu 2 , Dayong Jin 1, 5
Nano Letters ( IF 9.6 ) Pub Date : 2021-08-18 , DOI: 10.1021/acs.nanolett.1c02404 Jiayan Liao 1 , Jiajia Zhou 1 , Yiliao Song 2 , Baolei Liu 1 , Yinghui Chen 1 , Fan Wang 1 , Chaohao Chen 1 , Jun Lin 3 , Xueyuan Chen 4 , Jie Lu 2 , Dayong Jin 1, 5
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The control in optical uniformity of single nanoparticles and tuning their diversity in multiple dimensions, dot to dot, holds the key to unlocking nanoscale applications. Here we report that the entire lifetime profile of the single upconversion nanoparticle (τ2 profile) can be resolved by confocal, wide-field, and super-resolution microscopy techniques. The advances in both spatial and temporal resolutions push the limit of optical multiplexing from microscale to nanoscale. We further demonstrate that the time-domain optical fingerprints can be created by utilizing nanophotonic upconversion schemes, including interfacial energy migration, concentration dependency, energy transfer, and isolation of surface quenchers. We exemplify that three multiple dimensions, including the excitation wavelength, emission color, and τ2 profile, can be built into the nanoscale derivative τ2-dots. Creating a vast library of individually preselectable nanotags opens up a new horizon for diverse applications, spanning from sub-diffraction-limit data storage to high-throughput single-molecule digital assays and super-resolution imaging.
中文翻译：
多相上转换纳米粒子的可预选光学指纹
控制单个纳米粒子的光学均匀性并在多个维度上调整它们的多样性，点对点，是解锁纳米级应用的关键。在这里，我们报告了单个上转换纳米粒子 (τ 2profile) 可以通过共聚焦、宽视场和超分辨率显微镜技术解决。空间和时间分辨率的进步将光复用的极限从微米级推到纳米级。我们进一步证明了时域光学指纹可以通过利用纳米光子上转换方案来创建，包括界面能量迁移、浓度依赖性、能量转移和表面猝灭剂的隔离。我们举例说明了三个多维度，包括激发波长、发射颜色和 τ 2轮廓，可以构建到纳米级导数 τ 2 中-点。创建一个庞大的可单独预选纳米标签库为各种应用开辟了新的视野，从亚衍射极限数据存储到高通量单分子数字化验和超分辨率成像。
更新日期：2021-09-22
中文翻译：
多相上转换纳米粒子的可预选光学指纹
控制单个纳米粒子的光学均匀性并在多个维度上调整它们的多样性，点对点，是解锁纳米级应用的关键。在这里，我们报告了单个上转换纳米粒子 (τ 2profile) 可以通过共聚焦、宽视场和超分辨率显微镜技术解决。空间和时间分辨率的进步将光复用的极限从微米级推到纳米级。我们进一步证明了时域光学指纹可以通过利用纳米光子上转换方案来创建，包括界面能量迁移、浓度依赖性、能量转移和表面猝灭剂的隔离。我们举例说明了三个多维度，包括激发波长、发射颜色和 τ 2轮廓，可以构建到纳米级导数 τ 2 中-点。创建一个庞大的可单独预选纳米标签库为各种应用开辟了新的视野，从亚衍射极限数据存储到高通量单分子数字化验和超分辨率成像。
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