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Large Optical Modulation of Dielectric Huygens’ Metasurface Absorber

Advanced Optical Materials 2023年第10期11卷

作者： Cheng, Hao-Yu Ye, Ming-Jyun Chen, Wei-Ruei Yang, Chi-Yin Chu, Shi-Wei Chen, Kuo-Ping Lin, Kung-Hsuan Department of Physics National Taiwan University No. 1 Sec. 4 Roosevelt Rd. Taipei106319 Taiwan Institute of Physics Academia Sinica No. 128 Sec. 2 Academia Rd. Nangang Dist. Taipei City115201 Taiwan Nano-Science and Technology Program Taiwan International Graduate Program Academia Sinica No. 128 Sec. 2 Academia Rd. Nangang Dist. Taipei City115201 Taiwan College of Photonics National Yang Ming Chiao Tung University No.301 Sec.2 Gaofa 3rd Rd. Tainan City71150 Taiwan Brain Research Center National Tsing Hua University 101 Section 2 Kuang-Fu Road Hsinchu300044 Taiwan Institute of Photonics Technologies National Tsing Hua University 101 Section 2 Kuang-Fu Road Hsinchu300044 Taiwan

High-index nanostructures are found to exhibit large nonlinearity of spectral responses under photoexcitation, which is applicable to all-optical modulation. The nonlinearity stems from Mie-type resonance shift due to photoinduced variation of refractive index. Here, amorphous silicon-based Huygens’ metasurface absorber and ultrafast excitation are used to demonstrate two orders of magnitude enhancement of modulation depth, both theoretically and experimentally, when electric dipole lattice resonance matches the magnetic dipole resonance. Within a few square micrometer spatial confinement and picosecond scale delay, over 100% photothermal modulation depth is experimentally achieved at matched resonance condition. This concept is not limited to photothermal modulation in the amorphous silicon but is applicable to dielectric materials with various mechanisms to achieve modulation of refractive index. This work opens the avenue toward all-optical information processing via optimized modulation by careful spatiotemporal and spectral control over a metasurface. © 2023 Wiley-VCH GmbH.

关键词： Light modulation

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In-situ observation of hydrogen nanobubbles formation on graphene surface by AFM-SECM

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Electrochimica Acta 2024年 493卷

作者： Kholimatussadiah, Septia Hsu, Chia-Ling Ke, Shang-Wei Chou, Tsu-Chin Wu, Yung-Fu Yakimova, Rositsa Kumatani, Akichika Chen, Kuei-Hsien Chen, Li-Chyong Du, He-Yun Department of Physics National Taiwan University Taipei 10617 Taiwan Nano Science and Technology Taiwan International Graduate Program Academia Sinica Taipei 10617 Taiwan Center for Condensed Matter Sciences National Taiwan University Taipei 10617 Taiwan Center of Atomic Initiative for New Materials National Taiwan University Taipei 10617 Taiwan Department of Chemical Engineering Ming Chi University of Technology New Taipei City24301 Taiwan Institute of Atomic and Molecular Sciences Academia Sinica Taipei 10617 Taiwan Institute of Analytical and Environmental Sciences National Tsing Hua University Hsinchu 300044 Taiwan Department of Physics Chemistry and Biology Linköping University SE-581 83 Linköping Sweden Institute of Engineering Innovation School of Engineering The University of Tokyo Tokyo 113-8656 Japan Saitama 332-0012 Japan Tohoku University Sendai980-8577 Japan Battery Research Center of Green Energy Ming Chi University of Technology New Taipei City24301 Taiwan Biochemical Technology R&D Center Ming Chi University of Technology New Taipei City24301 Taiwan Center for Sustainability and Energy Technologies Chang Gung University Taoyuan City33302 Taiwan

Gas bubble evolution is an important phenomenon in many electrochemical processes and it is highly sensitive to the surface properties. Here we visualize the gas bubble dynamics on the surface of different graphene substrates during hydrogen evolution reaction (HER) using atomic force microscopy combined with scanning electrochemical microscopy. The low overpotential and low surface hydrophobicity of few-layer graphene formed on C-phase SiC causes the uniform distribution of hydrogen nanobubbles, which easily depart from the surface during the reaction. Conversely, the high overpotential and more hydrophobic surface of HOPG induces hydrogen bubbles to linger on the surface for an extended duration, leading to its accumulation and the subsequent formation of microbubbles. This in-situ nanoscale electrochemical mapping of hydrogen bubble dynamics provides new insight into electrocatalytic HER that occurs on non-metal electrodes. © 2024 Elsevier Ltd

关键词： Graphene

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High-efficiency and ultrastable solvent-free curable perovskite quantum dot inks for microLED and LED backlighting applications

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nano Energy 2025年 142卷

作者： Loan Thi Ngo Yu-Ting Huang Cheng-Chieh Chang Hemant Verma Yen-Huei Lin Ching-Tai Kuo Ying-Chih Liao Chao-Cheng Kaun Ren-Jei Chung Ru-Shi Liu Department of Chemistry National Taiwan University Taipei 106 Taiwan Nano Science and Technology Program Taiwan International Graduate Program Academia Sinica and National Taiwan University Academia Road 128 Nankang Taipei 115 Taiwan Department of Chemical Engineering and Biotechnology National Taipei University of Technology Taipei 106 Taiwan Department of Physics National Taiwan University Taipei 106 Taiwan Research Center for Applied Sciences Academia Sinica Academia Road 128 Section 2 Nangang Taipei 11529 Taiwan Department of Chemical Engineering National Taiwan University Taipei 106 Taiwan

Metal lead halide perovskite quantum dots (PeQDs) exhibit exceptional optoelectronic properties, showing promise as components for solar cells, lighting, display, and anticounterfeiting devices. However, the instability of PeQDs, along with synthesis and storage methods that rely on hazardous solvents, has limited their potential for commercial applications. To overcome these obstacles, we introduce a solvent-free method for fabricating high-quality green and red CsPbX 3 PeQD (X = Br, I) ink. Using a fluidic system, we first obtained super-high photoluminescence quantum yield PeQDs (92 % for red CsPb(Br,I) 3 , and nearly 100 % for green CsPbBr 3 PeQDs). The uniform nonsolvent PeQD ink is fabricated by modifying the as-formed PeQD surface with a mixture of trimethoxysilane and 3-(trimethoxysilyl)propyl methacrylate silane coupling agents to form PeQDs@silane, then dispersing the PeQDs@silane in a UV-curable 1,6-hexanediol diacrylate monomer. Our solvent-free PeQD ink exhibits bright and stable green and red emissions with long-term stability, retaining 100 % PL intensity after 115 days for CsPbBr 3 and 78 days for CsPb(Br,I) 3 . The environment-friendly ink enables highly uniform and bright films for LED backlighting and patterns for micro-LED applications. With color coordinates near the red and green reference values, the PeQD films demonstrate a remarkable 100.28 % color gamut coverage in comparison with Rec. 2020. This scalable and environmentally friendly method provides a safer alternative than conventional solvent-based PeQD ink.

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The unseen invaders: Tracking phylogeographic dynamics and genetic diversity of cryptic Pomacea canaliculata and P. maculata (Golden apple snails) across Taiwan

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Ecology and Evolution 2024年第4期14卷 e11268页

作者： Banerjee, Pritam Dey, Gobinda Maity, Jyoti Prakash Stewart, Kathryn A. Sharma, Raju Kumar Chan, Michael W. Y. Lee, Kuanhsuen Chen, Chien-Yen Department of Environmental Science Policy and Management University of California Berkeley CA United States Department of Biomedical Sciences Graduate Institute of Molecular Biology National Chung Cheng University Chiayi County Min-Hsiung Taiwan Department of Agricultural Chemistry National Taiwan University Taipei Taiwan Environmental Science Laboratory Department of Chemistry Biological Laboratory School of Applied Sciences KIIT Deemed to be University Odisha Bhubaneswar India Institute of Environmental Sciences Leiden University Leiden Netherlands Doctoral Program in Science Technology Environment and Mathematics Department of Earth and Environmental Sciences National Chung Cheng University Chiayi County Min-Hsiung Taiwan Department of Earth and Environmental Sciences National Chung Cheng University Chiayi County Min-Hsiung Taiwan Department of Emergency Medicine Ditmanson Medical Foundation Chia-Yi Christian Hospital Chiayi Taiwan Center for Nano Bio-Detection Center for Innovative Research on Aging Society AIM-HI National Chung Cheng University Chiayi Taiwan

The cryptic invasion of golden apple snails (Pomacea canaliculata and P. maculata) in Taiwan has caused significant ecological and economical damage over the last few decades, however, their management remains difficult due to inadequate taxonomic identification, complex phylogeny, and limited population genetic information. We aim to understand the current distribution, putative population of origin, genetic diversity, and potential path of cryptic invasion of Pomacea canaliculata and P. maculata across Taiwan to aid in improved mitigation approaches. The present investigation conducted a nationwide survey with 254 samples collected from 41 locations in 14 counties or cities across Taiwan. We identified P. canaliculata and P. maculata based on mitochondrial COI and compared their genetic diversity across Taiwan, as well as other introduced and native countries (based on publicly available COI data) to understand the possible paths of invasion to Taiwan. Based on mitochondrial COI barcoding, sympatric and heterogeneous distributions of invasive P. canaliculata and P. maculata were noted. Our haplotype analysis and mismatch distribution results suggested multiple introductions of P. canaliculata in Taiwan was likely originated directly from Argentina, whereas P. maculata was probably introduced from a single, or a few, introduction event(s) from Argentina and Brazil. Our population genetic data further demonstrated a higher haplotype and genetic diversity for P. canaliculata and P. maculata in Taiwan compared to other introduced regions. Based on our current understanding, the establishment of P. canaliculata and P. maculata is alarming and widespread beyond geopolitical borders, requiring a concerted and expedited national and international invasive species mitigation program. © 2024 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.

关键词： agricultural pest biological invasion DNA barcoding golden apple snails mitochondrial COI Pomacea population genetics

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Response to "Comment on 'A novel two-dimensional boron-carbon-nitride (BCN) monolayer: A first-principles insight [J. Appl. Phys. 2021, 130, 114301]'"

arXiv

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arXiv 2022年

作者： Bafekry, Asadollah Naseri, Mosayeb Fadlallah, Mohamed M. Sarsari, Ismaeil Abdolhosseini Faraji, Mehrdad Khatibani, Abbas bagheri Ghergherehchi, Mitra Gogova, Daniela Department of Radiation Application Shahid Beheshti University Tehran*** Iran Department of Physics Kermanshah Branch Islamic Azad University Kermanshah*** Iran Department of Physics Faculty of Science Benha University Benha13518 Egypt Department of Physics Isfahan University of Technology Isfahan84156-83111 Iran Micro and Nanotechnology Graduate Program TOBB University of Economics and Technology Sogutozu Caddesi No 43 Sogutozu Ankara06560 Turkey Nano Research Lab Lahijan Branch Islamic Azad University Lahijan1616 Iran Department of Electrical and Computer Engineering Sungkyunkwan University Suwon16419 Korea Republic of Department of Physics Chemistry and Biology Linkoping University Linköping581 83 Sweden

Mortazavi et al. comment on the results of our paper "A novel two-dimensional boron-carbon-nitride BCN monolayer: A First-principles insight," in which we have considered different configurations of BCN. For clarification, we applied the fingerprint theory [1-3] to examine the similarity between the distinct structures. The fingerprint function is a crystal structure descriptor, an 1D-function related to the pair correlation function and diffraction patterns. It does not depend on absolute atomic coordinates, but only on interatomic distances. Small deviations in atomic positions will influence the fingerprints only slightly [1-3]. Fingerprint theory allows quantification of the degree of order and complexity of a crystal structure. © 2022, CC BY.

关键词： Monolayers

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Single-molecule localization microscopy reveals the ultrastructural constitution of distal appendages in expanded mammalian centrioles

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Nature communications 2023年第1期14卷 1688页

作者： Ting-Jui Ben Chang Jimmy Ching-Cheng Hsu T Tony Yang Department of Physics National Taiwan University Taipei Taiwan. Department of Electrical Engineering National Taiwan University Taipei Taiwan. Nano Science and Technology Program Taiwan International Graduate Program Academia Sinica and National Taiwan University Taipei Taiwan. Department of Electrical Engineering National Taiwan University Taipei Taiwan. tonyyang@ntu.edu.tw. Graduate Institute of Biomedical Electronics and Bioinformatics National Taiwan University Taipei Taiwan. tonyyang@ntu.edu.tw.

Distal appendages (DAPs) are vital in cilia formation, mediating vesicular and ciliary docking to the plasma membrane during early ciliogenesis. Although numerous DAP proteins arranging a nine-fold symmetry have been studied using superresolution microscopy analyses, the extensive ultrastructural understanding of the DAP structure developing from the centriole wall remains elusive owing to insufficient resolution. Here, we proposed a pragmatic imaging strategy for two-color single-molecule localization microscopy of expanded mammalian DAP. Importantly, our imaging workflow enables us to push the resolution limit of a light microscope well close to a molecular level, thus achieving an unprecedented mapping resolution inside intact cells. Upon this workflow, we unravel the ultra-resolved higher-order protein complexes of the DAP and its associated proteins. Intriguingly, our images show that C2CD3, microtubule triplet, MNR, CEP90, OFD1, and ODF2 jointly constitute a unique molecular configuration at the DAP base. Moreover, our finding suggests that ODF2 plays an auxiliary role in coordinating and maintaining DAP nine-fold symmetry. Together, we develop an organelle-based drift correction protocol and a two-color solution with minimum crosstalk, allowing a robust localization microscopy imaging of expanded DAP structures deep into the gel-specimen composites.

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Characterization of halotolerant phosphate-solubilizing rhizospheric bacteria from mangrove (Avicennia sp.) with biotechnological potential in agriculture and pollution mitigation

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Biocatalysis and Agricultural Biotechnology 2024年 55卷

作者： Dey, Gobinda Maity, Jyoti Prakash Banerjee, Pritam Sharma, Raju Kumar Etesami, Hassan Bastia, Tapan Kumar Rath, Prasanta Sukul, Uttara Huang, Hsien-Bin Huang, Kuo-Wei Chen, Chien-Yen Department of Agricultural Chemistry National Taiwan University Taipei 106319 Taiwan Department of Biomedical Sciences Graduate Institute of Molecular Biology National Chung Cheng University 168 University Road Chiayi County Ming-Shung 62102 Taiwan Doctoral Program in Science Technology Environment and Mathematics Department of Earth and Environmental Sciences National Chung Cheng University 168 University Rd. Chiayi County Min-Hsiung 62102 Taiwan Environmental Science Laboratory Department of Chemistry Biological Laboratory School of Applied Sciences KIIT Deemed to Be University Odisha Bhubaneswar 751024 India Department of Environmental Science Policy and Management University of California Berkeley CA United States Department of Chemistry and Biochemistry National Chung Cheng University 168 University Road Chiayi County Min-Hsiung 62102 Taiwan Department of Soil Science University of Tehran Tehran 31587-77871 Iran Environmental Science Laboratory Department of Chemistry School of Applied Sciences KIIT Deemed to Be University Odisha Bhubaneswar 751024 India Department of Otolaryngology Ditmanson Medical Foundation Chia-Yi Christian Hospital Taiwan Center for Nano Bio-Detection Center for Innovative Research on Aging Society AIM-HI National Chung Cheng University Chiayi 62102 Taiwan

Mangroves represent intricate and ever-changing ecosystems, exhibiting fluctuations in water level, salinity, and nutrient (such as NPK) availability as well as a wide array of unique bacterial communities. Microbial interactions in different components (e.g., tree roots) of the mangrove ecosystem are crucial to understand the ecosystem functioning for potential application in pollution mitigation and agricultural production. This study aimed to isolate phosphate-solubilizing bacteria (PSB) from the rhizosphere sediment of mangrove (Avicennia sp.) in terms of heavy metals (HMs) and salinity tolerance as well as plant growth promoting (PGP) traits, where the effective PSB were used on Brassica chinensis for their seed priming and growth under salinity stress. The effective two PSB isolates were identified by 16S rRNA, where JKD01 and JKD02 were closely related (99%) to Enterobacter cloacae (OQ271412) and Kocuria rhizophila (OQ271413), respectively. Both the strains exhibited phosphate solubilization, IAA, NH_3, and EPS production ability as well as HMs resistant ability where, E. cloacae (OQ271412) and K. rhizophila (OQ271413), are effectively remove the Cu from the water with 33.23% and 27.54%, respectively. The FTIR results showed functional group shifts (carboxyl, phosphate, and amino) in Cu-treated bacterial biomass and intracellular Cu presence, indicating the involvement of Cu in the bio-sorption and intracellular bioaccumulation process, respectively. The findings suggested PSB tolerance to salinity and HMs are present in mangroves, making them a valuable source for isolating effective bacteria to reduce stress in plants, lower HMs accumulation in mangroves, and aid in the bioremediation of HMs-contaminated environments. © 2023

关键词： Bio-priming Copper remediation Heavy metal tolerant Mangrove Phosphate-solubilizing bacteria Salt tolerant

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Author Correction: Predicting the efficiency of prime editing guide RNAs in human cells

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Nature biotechnology 2024年第3期42卷 529页

作者： Hui Kwon Kim Goosang Yu Jinman Park Seonwoo Min Sungtae Lee Sungroh Yoon Hyongbum Henry Kim Department of Pharmacology Yonsei University College of Medicine Seoul Republic of Korea. Brain Korea 21 Plus Project for Medical Sciences Yonsei University College of Medicine Seoul Republic of Korea. Center for Nanomedicine Institute for Basic Science (IBS) Seoul Republic of Korea. Graduate Program of Nano Biomedical Engineering (NanoBME) Advanced Science Institute Yonsei University Seoul Republic of Korea. Electrical and Computer Engineering Seoul National University Seoul Republic of Korea. Interdisciplinary Program in Bioinformatics Seoul National University Seoul Republic of Korea. Graduate School of Data Science Seoul National University Seoul Republic of Korea. Department of Pharmacology Yonsei University College of Medicine Seoul Republic of Korea. hkim1@yuhs.ac. Brain Korea 21 Plus Project for Medical Sciences Yonsei University College of Medicine Seoul Republic of Korea. hkim1@yuhs.ac. Center for Nanomedicine Institute for Basic Science (IBS) Seoul Republic of Korea. hkim1@yuhs.ac. Graduate Program of Nano Biomedical Engineering (NanoBME) Advanced Science Institute Yonsei University Seoul Republic of Korea. hkim1@yuhs.ac. Severance Biomedical Science Institute Yonsei University College of Medicine Seoul Republic of Korea. hkim1@yuhs.ac. Graduate Program of NanoScience and Technology Yonsei University Seoul Republic of Korea. hkim1@yuhs.ac.

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Large-scale expanded sample imaging with tiling lattice lightsheet microscopy

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The international journal of biochemistry & cell biology 2023年 154卷 106340页

作者： Chieh-Han Lu Cheng-Yu Huang Xuejiao Tian Peilin Chen Bi-Chang Chen Research Center for Applied Sciences Academia Sinica Taipei 115 Taiwan Institute and Undergraduate Program of Electro-Optical Engineering National Taiwan Normal University Taipei 116 Taiwan. Electronic address: chenb10@gate.sinica.edu.tw. Research Center for Applied Sciences Academia Sinica Taipei 115 Taiwan. Nano Science and Technology Program Taiwan International Graduate Program Academia Sinica Taipei 115 Taiwan Department of Engineering and System Science National Tsing Hua University Hsinchu 300 Taiwan. Institute of Physics Academia Sinica Taipei 115 Taiwan.

The ability to observe biological nanostructures forms a vital step in understanding their functions. Thanks to the invention of expansion microscopy (ExM) technology, super-resolution features of biological samples can now be easily visualized with conventional light microscopies. However, when the sample is physically expanded, the demand for deep and precise 3D imaging increases. Lattice lightsheet microscopy (LLSM), which utilizes a planar illumination that is confined within the imaging depth of high numerical aperture (NA=1.1) detection objective, fulfils such requirements. In addition, optical tiling could be implemented to increase the field of view (FoV) by moving the lightsheet without mechanically moving the samples or the objective for high-precision 3D imaging. In this review article, we will explain the principle of the tiling lattice lightsheet microscopy (tLLSM), which combines optical tiling and lattice lightsheet, and discuss the applications of tLLSM in ExM.

关键词： 3D imaging Expansion microscopy Lightsheet microscopy Super-resolution imaging Thick tissue imaging Tiling lattice lightsheet

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Tissue clearing and its applications in neuroscience (vol 21, pg 61, 2020)

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NATURE REVIEWS NEUROscience 2020年第5期21卷 298-298页

作者： Ueda, Hiroki R. Ertuerk, Ali Chung, Kwanghun Gradinaru, Viviana Chedotal, Alain Tomancak, Pavel Keller, Philipp J. Department of Systems Pharmacology University of Tokyo Tokyo Japan Laboratory for Synthetic Biology RIKEN BDR Suita Japan Institute for Stroke and Dementia Research Klinikum der Universität München Ludwig-Maximilian University of Munich Munich Germany Institute of Tissue Engineering and Regenerative Medicine Helmholtz Zentrum München Neuherberg Germany Munich Cluster for Systems Neurology (SyNergy) Munich Germany Institute for Medical Engineering and Science Massachusetts Institute of Technology Cambridge MA USA Picower Institute for Learning and Memory Massachusetts Institute of Technology Cambridge MA USA Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA USA Department of Brain and Cognitive Sciences Massachusetts Institute of Technology Cambridge MA USA Eli & Edythe Broad Institute of MIT and Harvard Cambridge MA USA Center for NanoMedicine Institute for Basic Science Seoul Republic of Korea Graduate Program of Nano Biomedical Engineering Yonsei-IBS Institute Yonsei University Seoul Republic of Korea Division of Biology and Biological Engineering California Institute of Technology Pasadena CA USA Institut de la Vision Sorbonne Université INSERM CNRS Paris France Max Planck Institute of Molecular Cell Biology and Genetics Dresden Germany IT4Innovations Technical University of Ostrava Ostrava Czech Republic Janelia Research Campus Howard Hughes Medical Institute Ashburn VA USA

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

关键词： Immunological techniques Light-sheet microscopy Neuroscience

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