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Near-Infrared I/II Nanophosphors with Cr3+/Ni2+ Energy Transfer for Bioimaging

Advanced Optical Materials 2023年第15期11卷

作者： Satpathy, Aishwarya Huang, Wen-Tse Chan, Ming-Hsien Su, Ting-Yi Kamiński, Mikolaj Majewska, Natalia Mahlik, Sebastian Leniec, Grzegorz Kaczmarek, Slawomir M. Hsiao, Michael Liu, Ru-Shi Department of Chemistry National Taiwan University Taipei106 Taiwan Nanoscience and Technology Program Taiwan International Graduate Program Academia Sinica and National Taiwan University Academia Road 128 Nankang Taipei115 Taiwan Genomics Research Center Academia Sinica Academia Road Section 2 Nankang Taipei115 Taiwan Institute of Experimental Physics Faculty of Mathematics Physics and Informatics University of Gdansk Wita Stwosza 57 Gdansk80–308 Poland Department of Technical Physics Faculty of Mechanical Engineering and Mechatronics West Pomeranian University of Technology in Szczecin al. Piastow 19 Szczecin70–310 Poland

In the biomedical field, the use of fluorescence imaging in the second near-infrared (NIR-II) region is growing rapidly because it imparts the advantages of reduced autofluorescence and low photon scattering. The advantage of reduced scattering is that it increases penetration depth in vivo and improves imaging clarity. Herein, this work uses mesoporous silica, a biocompatible template that can be easily modified, functionalized, and loaded with drugs for use in several bioapplications. The ZnGa2O4 spinel oxide system is integrated into mesoporous silica and different concentrations of Cr3+ and Ni2+ are loaded in octahedral sites to obtain the highest emission intensity in the NIR-II region at 1285 nm via energy transfer from Cr3+ to Ni2+. Given that only a few nanophosphor systems with emission in the NIR-II region are available, this work attempts to establish emission in the NIR-II and NIR-I regions to obtain images in vivo with an increased penetration depth to 5 mm and improved clarity for bioimaging purposes. This system will open the door for biomedical research on other NIR-II nanophosphors. © 2023 Wiley-VCH GmbH.

关键词： Bioimaging

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Measuring 60-pc-scale Star Formation Rate of the Nearby Seyfert Galaxy NGC 1068 with ALMA, HST, VLT/MUSE, and VLA

arXiv

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arXiv 2024年

作者： Nagashima, Yuzuki Saito, Toshiki Ikarashi, Soh Takano, Shuro Nakanishi, Kouichiro Harada, Nanase Nakajima, Taku Taniguchi, Akio Tosaki, Tomoka Bamba, Kazuharu Physics and Mechatronics Course Major in Symbiotic Systems Science and Technology Graduate School of Symbiotic Systems Science and Technology Fukushima University 1 Kanayagawa Fukushima Fukushima960-1296 Japan National Astronomical Observatory of Japan 2-21-1 Osawa Mitaka Tokyo181-8588 Japan Faculty of Global Interdisciplinary Science and Innovation Shizuoka University 836 Ohya Suruga-ku Shizuoka422-8529 Japan Department of Physics General Studies College of Engineering Nihon University Tamura-machi Fukushima Koriyama963-8642 Japan Astronomical Science Program Graduate Institute for Advanced Studies SOKENDAI 2-21-1 Osawa Mitaka Tokyo181-1855 Japan Institute for Space-Earth Environmental Research Nagoya University Furo-cho Chikusa-ku Aichi Nagoya464-8601 Japan Department of Physics Graduate School of Science Nagoya University Furo-cho Chikusa-ku Aichi Nagoya464-8602 Japan Department of Geoscience Joetsu University of Education Yamayashiki-machi Niigata Joetsu943-8512 Japan

Star formation rate (SFR) is a fundamental parameter for describing galaxies and inferring their evolutionary course. H II regions yield the best measure of instantaneous SFR in galaxies, although the derived SFR can have large uncertainties depending on tracers and assumptions. We present an SFR calibration for the entire molecular gas disk of the nearby Seyfert galaxy NGC 1068, based on our new high-sensitivity ALMA 100 GHz continuum data at 55 pc (= 0′′ . 8) resolution in combination with the HST Paα line data. In this calibration, we account for the spatial variations of dust extinction, electron temperature of H II regions, AGN contamination, and diffuse ionized gas (DIG) based on publicly available multi-wavelength data. Especially, given the extended nature and the possible non-negligible contribution to the total SFR, a careful consideration of DIG is essential. With a cross-calibration between two corrected ionized gas tracers (free-free continuum and Paα), the total SFR of the NGC 1068 disk is estimated to be 3.2 ± 0.5 M☉ yr−1, one-third of the SFR without accounting for DIG (9.1 ± 1.4 M☉ yr−1). We confirmed high SFR around the southern bar-end and the corotation radius, which is consistent with the previous SFR measurements. In addition, our total SFR exceeds the total SFR based on 8 µm dust emission by a factor of 1.5. We attribute this discrepancy to the differences in the young stars at different stages of evolution traced by each tracer and their respective timescales. This study provides an example to address the various uncertainties in conventional SFR measurements and their potential to lead to significant SFR miscalculations. © 2024, CC0.

关键词： Galaxies

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Author Correction: Effect of de novo transcriptome assembly on transcript quantification

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Scientific reports 2019年第1期9卷 18041页

作者： Ping-Han Hsieh Yen-Jen Oyang Chien-Yu Chen Graduate Institute of Biomedical Electronics and Bioinformatics National Taiwan University Taipei 10617 Taiwan. Department of Computer Science and Information Engineering National Taiwan University Taipei 10617 Taiwan. Department of Bio-Industrial Mechatronics Engineering National Taiwan University Taipei 10617 Taiwan. chienyuchen@ntu.edu.tw. Genome and Systems Biology Program National Taiwan University and Academia sinica Taipei 10617 Taiwan. chienyuchen@ntu.edu.tw.

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

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Quantitative Measurement of Nano‐/Microparticle Endocytosis by Cell Mass Spectrometry†

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Angewandte Chemie 2010年第20期122卷

作者： Huan‐Chang Lin Hsin‐Hung Lin Cai‐Yu Kao Alice L. Yu Wen‐Ping Peng Chung‐Hsuan Chen Genomics Research Center Academia Sinica Taipei Taiwan (Republic of China) Fax: (+886) 2‐2789‐9931 Department of Bio‐Industrial Mechatronics Engineering National Taiwan University Taipei Taiwan (Republic of China) Taiwan International Graduate Program Academia Sinica Taipei Taiwan (Republic of China) Department of Physics National Dong Hwa University Shoufeng Hualien Taiwan (Republic of China) Fax: (+886) 3‐863‐3690

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Retraction Note

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Metals and Materials International 2014年第6期20卷 1169-1169页

作者： Chang-Suk Han Chang-Hwan Chun Seung-Oh Han Chang-Sup Oh Kyung-Wan Koo Jang-Woo Kim Young-Woo Kim Chang-Hwan Bae Ju-Hee Lee Dept. of Defense Science & Technology Hoseo University Chungnam Korea Research Center for Convergence Technology Hoseo University Chungnam Korea Reseat Program Korea Institute of Science and Technology Information Daejeon Korea Dept. of Defense Science & Technology Hoseo University Asan-si Chungnam Korea School of Display Engineering Hoseo University Chungnam Korea Dept. of Automotive Engineering Hoseo University Chungnam Korea Dept. of Mechatronics Eng. Graduate School of M. T. & M. Hoseo University Chungnam Korea

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